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Friedrich SS10N10* User's Manual

1. dra 43 44 Hop CIC uuu _ _____4__4___ 45 46 Compressor Replacement u 47 48 F IG Malli qi uuu nguy nu 49 52 Service and Assistance Avalaible Accessories 53 How to Check and Erase the Diagnostic Codes 54 F ror Codes ania Alarm Sigra aan podi pots 55 TEST MODE 56 Thermistors Resistance Values E m 57 Performance Test Data Sheet _ _____ __________ 58 o uuu om 59 68 Electronic Control Board Components Identification amp Thermistor Voltage 69 Electronic Control Configuration Instructions a 70 ION lp 71 79 Remote Control Replacement Instructions suscrita 80 81 User terrace CRM UNES 82 E 83 90 Addendum e c 91 VV Hi q 0 m
2. Q 92 Authorized Parts Depots uU waku igana 93 Technical Support Contact ___ _ ___ __ __ 93 The information contained in this manual is intended for use by qualified service technician who is familiar with the safety procedures required for installation and repair and who is equipped with the proper tools and test instruments required to service this product Installation or repairs made by unqualified persons can result in subjecting the unqualified person making such repairs as well as the persons being served by the equipment to hazards resulting in injury or electrical shock which can be serious or even fatal Safety warnings have been placed throughout this manual to alert you to potential hazards that may be encountered If you install or perform service on equipment it is your responsibility to read and obey these warnings to guard against any bodily injury or property damage which may result to you or others Your safety and the safety of others are very important We have provided many important safety messages in this manual and on your appliance Always read and obey all safety messages This is a Safety Alert symbol This symbol alerts you to potential hazards that can kill or hurt you and others safety messages will follow the safety alert symbol with the word WARNING or
3. 20 21 A NEN om 22 Electronic Control Sequence of Operation pesa a a aita mt alt 23 27 Fan u u mmm mm mmm am mm m mm m mu 28 Removing the Front Cover and Unit Chassis nieeennnunennnnnue annan nane nn nene ennannennnanennnanee naeran 29 Replacing the ID Coil Thermistor MR 30 Replacing the Control BOSE LLL LLULLA aaa __ ________ 30 Airflow Selection arid Adjustment Feld dk d aiaiai valada mat siae dudit adds cud ved md 31 Componente TE TT Eun 32 33 Testing the User Interface and Control Board nr aj kalmaar 34 Refrigeration Sequence of Operation iii nn kaa 35 R410A Sealed System Repair Considerations 36 Sealed Refrigeration System asiaate aid t mil 37 40 Hermetics Components Check ERE TUNE 41 Reversing Valve Description Operation a 42 E A MMM 43 Checking the Reversing Valve
4. costosos jorma i T i T r us jaosmaa 3 T T r LL K hl 8 K hl Small Chassis 2012 Parts List Number Part Description E ES15N33 A SS08N10 A SS10N10 A w SS12N30 A w 5515 30 YS10N10 A YS12N33 A IE II IS IO E II E Fm sewer T ij Cm saw _ L j ij j T T Ti pewez ueww rk wp emms mwcsmunsa 2 3 3 2 3 s 2 gt Pas 3 3 3 o Ga aa o P 3 s anan oan La 2 3 o 3 3 o c Pas ewoo cowPnessoncromer L o T TT JT Fw eme 3 o aa Ew eme O I 3 J J __ Fw pmaEwiwosp a psa 2 2 2 2 2 2 Fe eme ararsuerorrassy pame 2 3 2 c c wesns L 3 1 EO T TL T moos SSCP SCY CT jarmo TT Lr seem L ir Li T wserwemmero a T i 3 L i J 86 eo N co eo eo Oo ro CO CO CO 8 K hl amp Medium Chassis 2012 Parts List l
5. Le Valve State The reversing valve only changes when required to provide cooling or heat pump The RV valve stays in it s last state until required to change Cooling Mode Once the ambient temperature rises past the cool demand threshold Cool Set Point 1 5 F see figure below and the compressor is not locked out the cooling cycle begins As shown in the figure below the fan is started 5 seconds prior to the compressor Once the ambient temperature has been lowered to the cool set point Cool Set Point minus 25 F the cooling cycle starts to terminate by shutting off the compressor After a 30 seconds delay the fan is shut off See figure below for graphic details A Temp Above Set Point Demand Threshold 1 Set Point Cool Demand Compressor Delay 30 Sec Fan Coolina Control 24 Heating Mode Control Operation There are two heating methods Heat Pump and Electric Resistance Heat There are 3 types of units that provide heating Heat Pump Only Model YS10M10 Heat Pump with Electric Heat and Cool with Electric Heat Heat Control Operation Heat Pump Only Unit YS10M10 has no electric heat back up Once the ambient temperature falls below the Heating Demand Threshold 1 5 Below the Heat Set Point Temperature the heating cycle begins The fan is turned on 5 seconds before Once the ambient temperature has been raised to the Heat Satisfie
6. 2012 Service Parts Manual V4 FRIEDRICH N AN M IN N Standard Chassis Models Cool Only 115 Volt SS08N10 SS10N10 SS12N10 SS14N10 SM15N10 K u h 208 230 Volt SS12N30 SS15N30 SM18N30 SM21N30 Cool SM24N30 SL22N30 SL24N30 SL28N30 SL36N30 Cool with Electric Heat h 208 230 Volt ES12N33 ES15N33 EM18N34 EM24N34 EL36N35 Electric Heat Heat Pump with Electric Heat K u h 208 230 Volt YS12N33 YM18N34 YL24N35 Heat Pump Heat Pump 115 Volt YS10N10 Kuhl Serv PartsMan 9 12 Last character may vary 93001402 00 Table Of Contents Important Safety IMM alemannid 2 4 nn 5 Model and Serial Number Location RR 5 e MERO T mm 6 Performance Data and Specifications cU ajalt od UNI dm VK MENU mU Installation Information Sleeve Dimensions Circuit Rating mmrnenennnneeennnneen avane nn nanen anne nen nnn enn nanen nnns 8 ESEMED AA e saa mala kl 9 Before Operating Me Unit MR 10 seeker os Lu u uuu mE 11 Control Panel and Display Identification 1 eiie netur non dan ndm mtn In kt ka sette can oed aedi 12 Control Panel Operation Instructions 13 19 Remote Control
7. 31 ELECTRONIC CONTROL seRVICEKITCOoLasPceNz a 1 7 r L e 62507012 ELECTRONIC CONTROL SERVICE mese ase T T T T T e 6260104 ELECTRONIC CONTROL sERVICEKITHPasPcEN T T T TIT rT 51080522 CAPACITOR I i Fr wmm T j T TT Iu 51080559 CAPACITOR LLL Lr 7 7 rosas oem T r 61820700 CAPACITOR STRAP 20 DIAMETER L3 3 r 1 1 i 1 1 7 owworonsmaezspwwerR T L T capaciron Bracket 1 1 1 rr t r t L 25063505 COL SOLENOID H1SVAC 1 j a 25069605 cor 2080280 LL T T T T suem Fs e ferese r j Fs EE T I T T T Fs pem _ J jJ e feras jwmoo i j s 1764606 OVERLOAD x r sms 3 r C LE T T T T meem paworR 2 A r I i J i sem paworR 3 A T SI esmane L E T TL r L r Fu sms sumbrcom moo OO O o o T jd T ria 3 3 60179904 CONDENSATE DRAIN VALVE
8. TI N ect 92 4 FRIEDRICH Friedrich Air Conditioning Company 10001 Reunion Place Suite 500 San Antonio TX 78216 800 541 6645 www friedrich com ROOM AIR CONDITIONERS LIMITED WARRANTY FIRST YEAR ANY PART If any part supplied by FRIEDRICH fails because of a defect in workmanship or material within twelve months from date of original purchase FRIEDRICH will repair the product at no charge provided room air conditioner is reasonably accessible for service Any additional labor cost for removing inaccessible units and or charges for mileage related to travel by a Service Agency that exceeds 25 miles one way will be the responsibility of the owner This remedy is expressly agreed to be the exclusive remedy within twelve months from the date of the original purchase SECOND THROUGH FIFTH YEAR SEALED REFRIGERANT SYSTEM the Sealed Refrigeration System defined for this purpose as the compressor condenser coil evaporator coil reversing valve check valve capillary filter drier and all interconnecting tubing supplied by FRIEDRICH in your Room Air Conditioner fails because of a defect in workmanship or material within sixty months from date of purchase FRIEDRICH will pay a labor allowance and parts necessary to repair the Sealed Refrigeration System PROVIDED FRIEDRICH will not pay the cost of diagnosis of the problem removal freight charges a
9. 5 2 800 00 uto 2 in n 3 N B N Orv N N 00 00 ut OW 8 0 200 Un tart Time stem Mode an Mode an Speed et Point Cool et Point Heat art Time ool System Mode ut an Mode ow Fan Speed 2 et Point Cool 2 et Point Heat tart Time stem Mode an Mode n Speed et Point Cool et Point Heat art Time ool System Mode uto Fan Mode OW n Speed 2 et Point 2 et Point Heat tart Time stem Mode an Mode an Speed et Point Cool et Point Heat tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat m v gt gt T gt gt T gt T gt Ti gt et z N 8 0 20 N o N et N N NEN IN Ic Un gt c gt OV P p tmi ole or Pre Programmed Commercial Schedule Option 2 tart Time ystem Mode n Mode an Speed et Point Cool et Point Heat tart Time Period Sun tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat Mon tart Time stem Mode Sat tart Time
10. 1 J tf 29 61803462 BASEPAN tt 61803800 SMLIMED 60301802 CLIP MANIFOLD TOOL 61802600 BRACE SHROUD S M 61028900 COMPRESSOR GROMMET __ pop 3 L 36 61028901 COMPRESSOR GROMMET a 1 3 s og 93 INSUL LIS AIR DECK SIM 61819817 ANGLE WNGBRD SIDE PAINTED MED lm gt 20000 TII 41 61109514 BRKTSUPPORTASSY PAINTED 2 2 2 2 42 61819715 ANGLE WINGBOARD TOPPAINTEDSMUMED 1 1 J 1 60610305 WINDOW SEAL GASKET SHELL OUTER MED REPLMT 2010 47 60294421 WINGBOARDMED2010 __ 3 1 1 J t1 62601015 REMOTE CONTROL SERVICE KIT 61824405 CHECKVALVE tt 61883102 48PADISOLATIONSX6 __ Y po poo r 61818900 HEATER MOUNT BRACKET sp po op j post 61812900 SHIELD BOTTOMSIMBR tt 61812901 SHIELD BOTTOMSIM4AR ___ 1 Y SHIELD HEAT MED EEE LSO LAS 61715800 COENTERWEGHT tt 6046016 ASSYPLSTCBAGWWIK __ 1 1 1 60846017 ABSYPLSTCBAGWO WIK T I LJ 4 4 o o 1 6003300 GASKETURETHANEFOAM oo o j 1 4 1 ____ SHELL GUIDE S MIL __2 2 2 2 2 2 2 CHASSIS RETAINER WIRE Lom T THERMISTOR SENSOR KIT Loc Jo eu K hl 4 K hl Large Chassis 2012 Parts List Part Number Part Description EL25N35 A EL36N35 A SL22N30 A SL25N30 A SL28N30 A SL36N30 A YL24N35 A Tess fconoensorco
11. FAN ONLY MODE SYSTEM FAN MODE FAN TIMER SCHEDULE SPEED FRR105 When in the SYSTEM COOL Egor HEAT FAN ONLY mode you can also select FAN MODE FAN SPEED TIMER SCHEDULE WN and KA The SYSTEM MODE does not change FAN MODE The EN button allows you to select between and modes To select press once and let go SYSTEM IM AUTO FAN MODE SET POINT FAN SPEED FRR112 When in the mode the fan operates only when the system has a demand to cool or heat the room Note the fan is off no fan speed icon indicating no command for cooling or heating AUTO FAN Cooling Demand MODE FAN SPEED FRR106 System has a demand for cooling The fan is operating at a medium speed CONTINUOUS FAN CONTINUOUS MODE FAN SPEED FRR113 In the fan mode the fan operates all the time The system periodically cools or heats the fan s airflow but the flow of air does not stop FAN SPEED Cooling only units have 4 fan speeds except models 5128 and 5136 All Cool Heat units only have 3 fans speeds FAN SPEED The button allows you to toggle between four speeds LOW MEDIUM HIGH MAX and AUTO speed operation Press once and let go each time 4 Speed FRR095 During the SYSTEM mode COOL or HEAT the fan speed automatically varies depending on the difference between the unit
12. Electrical component malfunction caused by water could result in electric shock or other electrically unsafe conditions when the power is restored and the unit is turned on even after the exterior is dry Never operate the A C unit with wet hands Use air conditioner on a single dedicated circuit within the specified amperage rating Use on a properly grounded outlet only Do not remove ground prong of plug Do not cut or modify the power supply cord Do not use extension cords with the unit Follow all safety precautions and use proper and adequate protective safety aids such as gloves goggles clothing adequately insulated tools and testing equipment etc Failure to follow proper safety procedures and or these warnings can result in serious injury or death REFRIGERATION SYSTEM REPAIR HAZARDS Use approved standard refrigerant recovering procedures and equipment to relieve pressure before opening system for repair Do not allow liquid refrigerant to contact skin Direct contact with liquid refrigerant can result in minor to moderate injury Be extremely careful when using an oxy acetylene torch Direct contact with the torch s flame or hot surfaces can cause serious burns Make sure to protect personal and surrounding property with fire proof materials Have a fire extinguisher at hand while using a torch Provide adequate ventilation to vent off toxic fumes and work with a qualified assistant whenever possible Alway
13. TIMER SPEED SCHEDULE F MODE BIB RR159 If the Timer function is turned ON during the Timer s ON time the 8 icon illuminates The control system immediately turns the unit OFF Timer OFF Scenarios Scenario 1 FAN MODE FAN 9 SPEED SCHEDULE FRR166 The display shows the unit in Timer mode during an in active OFF period SYSTEM FAN AUTO FAN MODE x SET POINT FAN TIMER SPEED SCHEDULE FRR167 If the Timer function is turned OFF during an in active OFF period the Timer 6 icon turns off The display shows a normal system Scenario 2 SYSTEM FAN AUTO FAN MODE WI SET POINT FAN O SPEED SCHEDULE FRR168 The display shows the unit in Timer mode during an active ON period SYSTEM 0 D gt FAN AUTO FAN _ SET POINT FAN TIMER SPEED SCHEDULE MODE FRR169 If the Timer function is turned OFF during the ON time The Timer 6 icon turns off The control stays in the current state The display shows a normal system 19 Timer Schedule Control Block Bon FAN AUTO FAN E MODE O TIMER 5 SCHEDULE FRR148 If the unit is operating in the TIMER or SCHEDULE mode and you press any bytton except the button the TIMER icon begins to blink All button action is blocked SYSTEM E m IM FAN AUTO FAN _ MODE ET SET POINT O FAN TIMER
14. SPEED SCHEDULE FRR149 The TIMER 9 icon stops blinking after seconds You must turn the active TIMER or SCHEDULE mode OFF before making changes Once the changes are made press the button to re activate TIMER or SCHEDULE mode If the unit is operating in the TIMER or SCHEDULE mode and then you press any button except the button the TIMER 9 icon begins to blink SYSTEM AUTO FAN SET POINT FAN SPEED SCHEDULE MODE FRR150 All button action is blocked 20 Remote Control Operation Remote Control Refer to Figures 12 and 13 during operation description Getting Started Install two 2 AAA batteries in the battery compartment located on the back of the unit Operation The remote control should be within 25 feet of the air conditioner for operation Refer to Figure 11 for effectiveness Press the power button to turn the remote on The remote will automatically power off after 15 seconds if the buttons are not being pressed The remote must be on to control the unit POWER Button Turns remote and unit on and off SYSTEM Button Allows the user to sequentially select the following AUTO AUTO COOL Ed HEAT ER and FAN ONLY operations When the button is pressed the display indicates which mode has been selected via a display message Note that when the heating function is not available the system will automatically skip the HEAT mode FAN MODE Button Sele
15. The low pressure suction created by the compressor causes the refrigerant to leave the evaporator through the suction line as a cool low pressure vapor The refrigerant then returns to the compressor where the cycle is repeated Disch IX ischarge Line Evaporator a Line R 410A SEALED SYSTEM REPAIR CONSIDERATIONS 44 WARNING Refrigeration system under high pressure Do not puncture heat expose to flame or incinerate Only certified refrigeration technicians should service this equipment R410A systems operate at higher pressures than R22 equipment Appropriate safe service and handling practicces must be used Only use gauge sets designed for use with R410A Do not use standard R22 gauge sets The following is a list of important considerations when working with R 410A equipment 36 R 410A pressure is approximately 60 higher than R 22 pressure R 410A cylinders must not be allowed to exceed 125 they may leak or rupture R 410A must never be pressurized with a mixture of air it may become flammable Servicing equipment and components must be specifically designed for use with R 410A and dedicated to prevent contamination Manifold sets must be equipped with gauges capable of reading 750 psig high side and 200 psig low side with a 500 psig low side retard Gauge hoses must have a minimum 750 psig service pressure rating Recovery cylinders must have a minimum service
16. live test cord probes on each of the remaining wires from the speed switch or system switch to test intermediate speeds If the control is in the MoneySaver mode and the thermostat calls for cooling the fan will start then stop after approximately 2 minutes then the fan and compressor will start together approximately 2 minutes later Blower Fan Motor CAPACITORS 44 WARNING ELECTRIC SHOCK HAZARD Turn off electric power before servicing Discharge capacitor with a 20 000 Ohm 2 Waitt resistor before handling Failure to do so may result in personal injury or death Many motor capacitors are internally fused Shorting the terminals will blow the fuse ruining the capacitor A 20 000 ohm 2 watt resistor can be used to discharge capacitors safely Remove wires from capacitor and place resistor across terminals When checking a dual capacitor with a capacitor analyzer or ohmmeter both sides must be tested Capacitor Check with Capacitor Analyzer The capacitor analyzer will show whether the capacitor is open or shorted It will tell whether the capacitor is within its micro farads rating and it will show whether the capacitor is operating at the proper power factor percentage The instrument will automatically discharge the capacitor when the test switch is released Capacitor Connections The starting winding of a motor can be damaged by a shorted and grounded running capacitor This damage usually
17. If there are heat producing appliances in use in the room or if the room is heavily occupied the unit will need to run longer to remove the additional heat Be sure to use exhaust vent fans while cooking or bathing and if possible try not to use heat producing appliances during the hottest part of the day The use of higher efficiency components in your new air conditioner may result in the unit running longer than you feel it should This may be more apparent if it replaced an older less efficient model The actual energy usage however will be significantly less when compared to older models The energy efficiency ratio EER and cooling capacity rating Btu h listed on the unit s rating plate are both agency certified 61 COOLING ONLY ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Possible Cause Possible Solution Check voltage at compressor 115V amp 230V Low voltage units will operate at 10 voltage variance Temperature not set cold enough or Set temperature to lower than ambient position room air thermistor inoperative Test thermistor and replace if inoperative Compressor hums but cuts off on Hard start compressor Direct test compressor Compressor overload If compressor starts add starting components does not run Open or shorted compress windings Open overload Test overload protector amp replace if inoperative Open capacitor Test capacitor amp replace if inoperative Test for continuity
18. 17300 14300 Volts Rated TIS 115 115 115 230 208 230 208 115 230 208 230 208 230 208 230 208 230 208 230 208 230 208 115 230 208 230 208 230 208 230 208 230 208 230 208 230 208 230 208 Cooling Amps 6 1 7 7 10 0 12 0 4 8 4 9 6 4 6 8 12 0 7 4 8 0 9 4 10 3 11 2 11 9 9 6 10 2 11 2 12 0 13 5 14 4 19 0 20 5 7 8 5 2 5 4 8 5 8 9 11 1 12 0 4 8 4 9 6 4 6 8 7 4 8 0 11 2 11 9 19 0 20 5 Cooling Watts 677 848 1111 1444 1055 1027 1480 1459 1358 1635 1607 2181 2128 2590 2550 2188 2092 2553 2532 2926 2872 4235 4200 855 1095 1076 1808 1788 2500 2447 1055 1027 1480 1459 2590 2550 2590 2550 4235 4200 Heating Amps 7 6 5 6 5 8 8 5 8 7 12 2 14 3 16 0 14 7 16 0 14 7 19 5 17 0 19 5717 24 0 22 4 Heating Watts 743 1132 1139 1833 1761 2610 2575 3500 2900 3500 2900 4200 3500 4200 3500 5500 4650 Energy Efficiency Ratio 11 7 11 2 10 8 9 10 9 10 9 9 8 9 8 10 9 10 7 10 7 9 4 9 4 8 6 8 6 9 6 9 8 9 4 9 4 9 4 9 4 8 5 8 5 11 0 10 5 10 5 9 9 9 9 9 4 9 4 10 9 10 9 9 8 9 8 8 6 8 6 8 6 8 6 8 5 8 5 Estimated Yearly Operating Cost 54 67 88 115 84 112 109 131 173 206 174 207 229 338 68 87 147 199 84 112 131 207 338 Operates on 115 volt and is not equipped with supplemental heat Will not provide heat at temperatures below 40 F Friedrich room air conditioners are designed
19. 4 for 3 seconds Note the Timer start stop times may be set even when the system is in the Schedule mode SYSTEM FAN MODE FAN SPEED FRR145 Use the PX or BA button to adjust the hour Press the TIMER SET button Figure 4 to advance to the Minutes section A TIMER SPEED SCHEDULE MODE FRR146 Use the P or M button to adjust the minutes Press the TIMER SET button Figure 4 within 15 seconds to exit and save the setting The timer is now set to stop at 11 55 AM The display returns to normal Turning the TIMER ON once the time and day the start and top times have been set TIMER Press the button once and let go NOTE See the following TIMER 8 ON OFF scenarios Timer ON Scenarios Scenario 1 1 SET POINT FAN SPEED SCHEDULE FRR156 The display shows a normal operating system SYSTEM FAN MODE O SPEED SCHEDULE FRR157 If the Timer function is turned ON during the Timer s OFF time the icon illuminates The control system immediately turns the unit OFF Scenario 2 SYSTEM FAN AUTO FAN MODE 1 SET POINT FAN TIMER SPEED SCHEDULE FRR158 The display shows a normal operating system SYSTEM F SET POINT
20. 62601013 ES EM EL 62601014 YS10N10 Contents Main Board Indoor Air Sensor Indoor Coil Sensor Outdoor Coil Sensor Discharge Air Sensor Instruction Sheet Procedure You must first confirm and set the voltage of the electronic control to match your air conditioner Please perform the steps listed below before installation otep 1 Identify unit operating voltage from unit nameplate label Step 2 Set voltage selection on the electronic control by connecting the jumper wire s to match the voltage listed on the unit nameplate label Step 3 Consult service manual for electronic control replacement HEY ET e instructions and safety information LOL OL JL p 1 a 70 71 K hl Electronic Control COOL ONLY Models 5508 10 SS10N10 A SS10N10 B SS12N10 A SS14N10 A SS14N10A A SM15N10 A SS12N30 A SS15N30 A SM18M30 A SM21N30 A SM24N30 A BROWN CHASSIS SCHEMATIC L1 ELECTRONIC CONTROL Make sure you have the correct voltage configuration for your unit See page 70 POWER SUPPLY 230 208 115VAC OR YELLOW GREEN 2 am NEUTRAL 115 V USER INTERFACE L2 230 208 V Aaa N gt OLP 70 f COM YC CAP OLP dy N COMPRESSOR COMPRESSOR y com L ELECTRONIC CONTROL YO CAP LEGEND CAPACITOR COMPRESSOR FAN MOTOR OVERLOAD PROTECTOR US
21. NOTE Make sure the front frame with the mesh filter is facing you Figure 1 Figure 3 FILTER SS s SS SS N S y STEP 2 Remove the filter by grabbing it from its handle lifting it up and swinging it out STEP 2 Swing the front frame open Clean the front frame by washing the dirt from the filter Use a mild soap solution if necessary Allow filter to dry Figure 2 Figure 4 NW MN FILTER FRONT FRAME WITH DANSES STANDARD _ MESH FILTER Filter assembly STEP 1 Install the filter grip back by sliding it onto the filter frame The filter handle slides into the frame in only one direction Filter installation Install the filter back into the unit by sliding the filter halfway up tilt towards the front of you then gently slide it up fully Do not force the filter into the unit 52 ROUTINE MAINTENANCE Continued After Maintenance Repair Start up Checklist and Notes Inspect and ensure that all components and accessories have been installed properly and that they have not been damaged during the installation progress Check the condensate water drain s to ensure that they are adequate for the removal of condensate water and that they meet the approval of the end user Ensure that all installation instructions concerning clearances around the unit have been adhered to Check to ensure that the unit air filter indoor coil and outdoor c
22. Note that in the AUTO mode the speed of the fan will be shown by illuminating the number of bars in the speed triangle 4 Speed 3 Speed Fan Relay Operation o LCD A Display 5 Text 2 Speed Fan 3 Speed Fan 4 Speed Fan 29 REMOVING THE COVER WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing Failure to follow this warning could result in serious injury or death Remove the decorative front cover by using the tool provided see figure below USE HAND T LE KOT OVER TIGHTER i k I LOGATION OF GRILLE REMOVAL TOOL Tighten the four 4 captive screws as indicated by the arrows in the figure above before closing the front panel do not over tighten Ensure the filter is in place Make sure curtains do not block the side air intake Notes on reattaching the decorative front cover Align the cord notch over the cord and center the fresh air lever Align the cover over the User Interface Ul to ensure it is clear around it and it does not depress any buttons If not installed correctly the wrench alert symbol could flash REMOVING THE CHASSIS WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing Failure to follow this warning could result in serious injury or death Remove the decorative front cover See figure at left Remove the chassis Entrygard Retainer Wire by removing the screw
23. and proper protective clothing must be worn when working with refrigerants Failure to follow these procedures could result in serious injury or death This condition can be checked as follows 1 Install a piercing valve on the suction and discharge or liquid process tube 2 Attach gauges to the high and low sides of the system 3 Start the system and run a cooling or heating perfor mance test If test shows A Below normal high side pressure B Above normal low side pressure C Low temperature difference across coil The compressor valves are faulty replace the compressor COMPRESSOR REPLACEMENT Recommended procedure for compressor replacement WARNING RISK OF ELECTRIC SHOCK Unplug and or disconnect all electrical power 1 WARNING 2 WARNING NOTICE Dh SEENI to the unit before performing inspections maintenances or service Failure to do so could result in electric shock serious injury or death Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refrigerants Failure to follow these procedures could result in serious injury or death Recover all refrigerant from the syste
24. ow Fan Speed 8 et Point Cool 0 et Point Heat 200 Start Time ool System Mode uto Fan Mode ow Fan Speed 2 et Point Cool 2 et Point Heat Sat Start Time ystem Mode an Mode an Speed et Point Cool et Point Heat tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat 00 Start Time 00 stem Mode uto Fan Mode ow Fan Speed 8 et Point Cool 0 et Point Heat 200 Start Time ool System Mode ut an Mode ow Fan Speed 2 2 et Point Heat Tues tart Time ool System Mode uto Fan Mode ow Fan Speed 8 et Point Cool 0 et Point Heat 00 tart Time ool System Mode uto Fan Mode an Speed et Point Cool et Point Heat Un Un Un i BB Un BE ool uto OW 8 0 0 BB BB BB BB 00 ut ow 8 0 00 00 uto W 00 uto ow 8 0 gt gt gt gt T gt T gt Ti gt et 8 0 8 0 o cB 7 e o o o o 8 Nic Q o tart Time ool System Mode to Fan Mode ow Fan Speed 5 et Point Cool et Point Heat 00 Start Time 00 stem Mode uto Fan Mode ow Fan Speed 8 et Point Cool 0 et Point Heat 200 Start Time ool System Mode to Fan Mode ow Fan Speed 2 2 et Point Heat UN Un UN ool t gt gt et H c et c gt
25. r T Cas e518 __ 3 T TT T r sta oranan 31 r 3 T r L T r Cs 6200821 assener 3 r 3 L r L L r T r few ooon 1 3 r t L P ew jmo 3 r L r F L r L r assy A 1 3 L r 3 L r L r Fw 61870000 ferace sron tane 2 2 2 2 2 2 2 3 2 gt gt I oO gt 3 91400402 COMPRESSORSTUD 0 3 3 3 3 3 3 38 61715800 COUNTERWEGHT 2 2 2 2 2 36 1150934 COMPRESSORGROMMET I 3 3 3 3 3 3 36 61028902 COMPRESSORGROMMET So o S 3 37 61937000 PANELUSLRG 3 4 4 1 3 61937002 PANELUSLRGPTCR ___ _ _ _ 1 1 j t1 39 62400427 DECORATIVEFRONTSERVICEKITURG J 1 1 3 t 1 1 40 61819818 ANGLE WNGBRD SIDE PAINTEDLRG J 2 2 2 2 j J 42 61819710 ASSYANGLEWINGBOARDTOPLRG J T 040 RO co I 2 2 5 SILL PLATE PAINTED LRG I I 46 61825730 SHELLOUTERLRGREPLMT 200 1 1 47 60294426 WINGBOARDLRG200 o REMOTE CONTROL SERVICE KIT I I 61768203 BOXEXTERNALRELAY __ 61883805 PTCRRESISTORHARDSTART L 61883804 PTCRMNTGCLIPPTCAUX36 520HRND CHECK VALVE EE 48 PA
26. 15 ohms for the 5 2 KW heater should be registered DRAIN PAN VALVE During the cooling mode of operation condensate which collects in the drain pan is picked up by the con denser fan blade and sprayed onto the condenser coil This assists in cooling the refrigerant plus evaporating the water During the heating mode of operation it is necessary that water be removed to prevent it from freezing during cold outside temperatures This could cause the con denser fan blade to freeze in the accumulated water and prevent it from turning To provide a means of draining this water a bellows type drain valve is installed over a drain opening in the base pan This valve is temperature sensitive and will open when the outside temperature reaches 40 F The valve will close gradually as the temperature rises above 40 F to fully close at 60 F Bellows Assembly Drain Pan Valve 34 COMPONENTS TESTING continued Testing the User Interface and the Electronic Control Board 44 WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation Extreme care must be used if it becomes necessary to work on equipment with power applied Failure to do so could result in serious injury or death If the User Interface does not turn on 1 Make sure the unit has the proper voltage and that it is turned on 2 Disconnect the User Interface s wire harness on the control board 3 Using a voltmeter check the
27. 3 26 119 159 59 10 20 139 40 94 480 570 230208 15 ses 88 46 19 132 45 nz aro 690 2 02 20 0 6 6 0 6 6 0 9 5 9 5 1 2 3 21 26 24 25 19 6 6 5 3 3 32 0 35 35 2 5 0 0 0 7 8 7 7 8 8 5 2 64 6 4 74 74 8 5 9 4 9 4 L28N30 A L36N30 A L36N35 A a paja jaja al N N gt m o n 139 as 127 o 705 230208 2 28 i130 190 56 73 33 126 480 180 __ 880 720 230208 30 28 Conditions 80 degrees room air temp 8 50 relative humidity with 95 degree outside air temp amp 40 relative humidity systems use 410 Test done at highest unit fan speed SPECIFICATIONS MODEL K hl SS08N10 SS10N10 5512 10 5514 10 5512N30 5515 SM15N10 SM18N30 SM21N30 SM24N30 SL22N30 SL24N30 SL28N30 SL36N30 Cooling Btu 7900 9500 12000 14000 11500 11200 14500 14300 14800 17500 17200 20500 20000 22300 22000 21000 20500 24000 23800 27500 27000 36000 35700 Heat Pump YS10N10 YS12N33 YM18N34 YL24N35 9400 11500 11300 18200 17800 23500 23000 K hl Electric Heat ES12N33 ES15N33 EM18N34 EM24N34 EL36N35 11500 11200 14500 14300 17500 17200 22300 22000 36000 35700 Heating Btu 7500 9400 9000 17900 17700 23500 23000 10700 8900 10700 8900 13000 10600 13000 10600
28. 48 SPECIAL PROCEDURE IN THE CASE OF MOTOR COMPRESSOR BURNOUT WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation Failure to do so may result in personal injury or death WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refrigerants Failure to follow these procedures could result in serious injury or death WARNING EXPLOSION HAZARD The use of nitrogen requires a pressure regulator Follow all safety procedures and wear protective safety clothing etc Failure to follow proper safety procedures result in serious injury or death 1 Recover all refrigerant and oil from the system 2 Remove compressor capillary tube and filter drier from the system 3 Flush evaporator condenser and all connecting tubing with dry nitrogen or equivalent Use approved flushing agent to remove all contamination from system Inspect suction and discharge line for carbon deposits Remove and clean if necessary Ensure all acid is neutralized 4 Reassemble the system including new drier strainer and capillary tube 5 Proceed with step 8 10 on previous page ROTARY AND SCROLL COMPRESSOR SPECIAL TROUBLESHOOTING AND SERVICE Basically troubleshooting and servicing rotary compres sors is the same as on the reciproc
29. 8155 230 230 89 7227 7405 7583 240 240 90 7050 726 7402 243 243 91 247 92 250 93 2 53 94 2 57 2 60 96 608 6252 6417 263 263 98 5800 59601 612 270 270 99 5 663 5 822 5 981 2 73 2 73 58 2 FRIEDRICH ROOM AIR CONDITIONER UNIT PERFORMANCE TEST DATA SHEET JOB NAME TECHS NAME DATE MODEL SERIAL HOW IS ALL OF THE INSTALLATION GOOD BAD YES NO IS A CHASSIS SEAL GASKET INTALLED IS THE FRESH EXAUST AIR VENT OPEN IS A FRIEDRICH SLEEVE INSTALLED IS A FRIEDRICH OUTDOOR GRILLE INSTALLED IS MAINTENANCE BEING PERFORMED If NO is checked use back of sheet for explanation ELECTRICAL LINE VOLTAGE STATIC VOLTS START UP VOLTAGE VOLTS AMPERAGE DRAW AMPS COOL AMPERAGE DRAW AMPS HEAT COMPRESSOR LOCKED ROTOR AMPS AMPS RUNNING AMPERAGE DRAW AMPS INDOOR TEMPERATURES INDOOR AMBIENT TEMPERATURE F RELATIVE HUMIDITY RH INDOOR COOL HEAT DISCHARGE AIR TEMPERATURE INDOOR F RETURN AIR TEMPERATURE INDOOR Fo F OUTDOOR TEMPERATURE OUTDOOR AMBIENT TEMPERATURE F RH OUTDOOR RELATIVE HUMIDITY CONDENSER DISCHARGE AIR TEMPERATURE OUTDOOR INTAKE AIR TEMPERATURE OUTDOOR APPLICATION USE ROOM RESIDENTIAL OR COMMERCIAL COOLING OR HEA
30. SYSTEM AUTO EE FAN TIMER SP SCHEDULE FRR120 The wait icon EF illuminates when the compressor lockout is active Control Panel Lock To lock the front panel controls press and hold the buttons for seconds The lock icon IB illuminates to indicate the locked status During lockout none of the control panel buttons will operate EAN AUTO FAN 4 Pp SPEED SCHEDULE SET POINT FRR116 To unlock press and hold the EN buttons simultaneously for 3 seconds External Control Status The icon illuminates to indicate that the system is being controlled remotely such as from a smart grid from a power company for more information see page 10 1 SET POINT SMART FAN TIMER SCHEDULE MODE 5 SET POINT FAN TIMER SPEED SCHEDULE MODE FRR126 The Kil icon illuminates to indicate that the system is receiving a Wi Fi connection for more information see page 10 16 TIMER OR SCHEDULE OPTIONS 1 2 SELECTION The control system has one Timer and two Schedule functions A Timer factory default Allows you to command the unit to turn ON and OFF at a time you program Setting the start stop and day can be found latter in this manual on page 18 B Residential
31. and spring as a means of bringing in fresh outside air when using FAN ONLY It can also be used in the summer with the compressor in the Cooling Mode if you wish TO EXHAUST INDOOR AIR Move the lever to the Exhaust gt position This will allow stale airto be expelled to the outside of the dwelling This is especially handy in the spring or fall when indoor air tends to get stale or after a social gathering involving smokers or to remove cooking odors BEST PERFORMANCE Move the lever to the Re Circulate Position This is the most efficient mode for cooling and heating lm Ema L IL gt 32 COMPONENTS TESTING FAN MOTOR A single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan A self resetting overload is located inside the motor to protect against high temperature and high amperage conditions See Figure 23 WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing Failure to follow this warning could result in serious injury or death BLOWER FAN MOTOR TEST 1 Determine that capacitor is serviceable 2 Disconnect fan motor wires from fan speed switch or system switch 3 Apply live test cord probes on black wire and common terminal of capacitor Motor should run at high speed 4 Apply live test cord probes on red wire and common terminal of capacitor Motor should run at low speed 5 Apply
32. at the front right bottom corner See Figure below Save this screw for reattachment after reinstalling the chassis ENTRY GARD RETAINER WIRE FAR RIGHT SCREW Handle Use Use handle on both sides to pull unit from sleeve Do not push pull or lift from center of support Hold the cabinet stationary then use the hand grips on both ends of the control unit support bracket to pull the chassis out of the cabinet see below yea CONTROL UNIT SUPPORT BRACKET Before reinserting the chassis into the sleeve ensure to properly reinstall the chassis seal gasket 30 REPLACING THE INDOOR COIL THERMISTOR WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing Failure to follow this warning could result in serious injury or death Remove the decorative front cover see page 29 Remove all indicated screws below 8 total see figure below Remove the Discharge Sensor and the User Interface plugs from the control board CAUTION iu se Handia f Locators sides Remove the screws indicated the side and back plate 6 total see figure below Partially lift the top cover and at the same time carefully swing out from the top the back and side plate Replace the indoor coil sensor Ensure to properly clip and insulate it at the same location see figure below A WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before
33. discharge line or restricted Compressor running abnormally hot condenser Refrigerant overcharge Check amperage connections Possible Cause Possible Solution N Check power supply Check LCDI plug Check O power wire connections Check if panel is locked uisus Incorrect wiring Refer to appropriate wiring diagram turn on Defective thermistor Replace thermistor or electronic control Possible Cause Possible Solution Poor installed ele to Installation Manual for proper installation Fan blade striking chassis Reposition adjust motor mount Check that compressor grommets have not Noisy operation Compressor vibrating deteriorated Check that compressor mounting parts are not missing Improperly mounted or loose Check assembly amp parts for looseness cabinet parts refrigerant tubes rubbing amp rattling pipes etc Possible Cause Possible Solution Evaporator drain pan overflowing Clean obstructed drain trough Evaporator drain pan broken or cracked Condensation forming underneath Reseal or replace No chassis gasket installed base pan Install chassis gasket Poor installation resulting in rain Check installation instructions Reseal as entering the room required Water leaks into the room Dirty evaporator coil Use pressure wash Condensation on discharge grille or biodegradable cleaning agent to clean louvers Environmental phenomena point supply louvers upward Put on high fan Chassis gasket
34. in all positions Replace if Inoperative system button inoperative switch or electronic board Refer t iate wiring di to check Broken loose or incorrect wiring al wiring Correct as needed Possible Cause Possible Solution Inoperative system button Test button amp replace user interface if inoperative Broken loose or incorrect wiring Refer to applicable wiring diagram Fan motor Open capacitor Test capacitor amp replace if inoperative does not run Fan speed button defective Replace user interface if inoperative Test fan motor amp replace if inoperative be sure Inoperative fan motor internal overload has had time to reset Possible Cause Possible Solution Undersized unit Refer to industry standard sizing chart Indoor ambient thermistor open See alarms and replace thermistor if needed or shorted Dirty filter Clean as recommended in Owner s Manual Dirty or restricted condenser or Use pressure wash or biodegradable cleaning Does not cool evaporator coil agent to clean only cools slightly Adjust discharge louvers Use high fan speed Close doors Instruct customer on use of this Fresh air or exhaust air door open sature Low capacity undercharge Check for leak amp make repair Comoressor not ouro Check amperage draw against nameplate If i not conclusive make pressure test 62 COOLING ONLY ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Possible Cause Pos
35. is requested the timer will block the request until the change over delay is expired 27 Compressor Lock Out Time The lockout feature ensures that the compressor is de energized for a period of time The timer varies randomly from 180 to 240 seconds The compressor lockout is initiated every time the compressor is off due to 1 Satisfying the temperature set point 2 Changing mode to fan only or heat 3 Turning the unit off 4 Control is first plugged in or power is restored after failure 5 Line power is restored from a brown out condition Wait ICON Hour Glass X The wait icon will be turned on when the compressor is locked out and during demand for cooling or heat pump compressor operation The Wait ICON will be turned off when the condition clears Cooling Fan Delay Fan cycle Auto mode only When unit cycles cooling ON starts the fan 5 seconds EARLY When unit cycles cooling OFF DELAYS the fan off for 30 seconds Note this fan delay is disabled during Test Mode Heating Fan Delay This is only for fan Mode Auto Fan cycles with cool heat operation and not for continuous fan mode When unit cycles Heating ON starts the fan 5 seconds EARLY When unit cycles Heating OFF DELAYS the fan off for 15 seconds Note the fan delay is disabled during Test Mode Fan Speed Change Delay Relay activation is delayed by a minimum number of seconds The default for this value is 2 seconds and is used to eliminate rela
36. new technologies that allow power companies to adjust electrical loads of residential users Check with your local electric company to learn more about Smart Grid programs in your area FriedrichLink Adapter 12 I Panel and Display Identification Let s check out how to control your air conditioner On the control panel just above the POWER is a liquid crystal display LCD All of the control panel function buttons and mode icons can be viewed in Figure 3 Power On Press the button to turn on the air conditioner The power button illuminates to indicate that the power is on The backlight on the power switch will automatically dim to 20 intensity after 15 seconds of inactivity The remote control can also be used to turn power ON OFF See Remote Control Display The display is a high efficiency LCD with a built in white backlight The backlight has an automatic two 2 step dim function After 15 seconds of inactivity the disp to full brightness lay dims to 20 intensity After an additional 120 seconds the display switches off Touching any button automatically changes the display There are three control push buttons on each side of the display Figure 3 SYSTEM FAN MODE FAN SPEED TEMPERATURE TIMER SCHEDULE Cycles between Sets fan to either Sets fan speed Increment UP Turns ON or OFF AUTO HEA
37. pressure rating of 400 psig DOT 4BA400 and DOT BW400 approved cylinders POE Polyol Ester lubricants must be used with R 410A equipment To prevent moisture absorption and lubricant contamination do not leave the refrigeration system open to the atmosphere longer than 1 hour Weigh in the refrigerant charge into the high side of the system Introduce liquid refrigerant charge into the high side of the system For low side pressure charging of R 410A use a charging adaptor Use Friedrich approved R 410A filter dryers only R 410A SEALED REFRIGERATION SYSTEM REPAIRS IMPORTANT SEALED SYSTEM REPAIRS TO COOL ONLY MODELS REQUIRE THE INSTALLATION OF ALIQUID LINE DRIER EQUIPMENT REQUIRED 37 1 Voltmeter Ammeter 2 3 4 E P A Approved Refrigerant Recovery System 5 Vacuum Pump capable of 200 microns less vacuum Acetylene Welder 7 Electronic Halogen Leak Detector capable of detecting HFC Hydrofluorocarbon refrigerants 8 Accurate refrigerant charge measuring device such as a Balance Scales 1 2 oz accuracy b Charging Board 1 2 oz accuracy WARNING RISK OF ELECTRIC SHOCK Unplug and or disconnect all electrical power to the unit before performing inspections maintenances or service Failure to do so could result in electric shock serious injury or death 44 WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil und
38. to 7 The day setting is up to the user If you set the current day 1 So if today is Tuesday then Day 1 Tuesday select 1 SYSTEM I AUTO FAN i MODE TIMER SPEED SCHEDULE 31 Press TIMER SET Refer to Figure 4 button to exit and save the SET TIME function The TIMER SET button must be pressed within 15 second Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display Timer Start Time SYSTEM D FAN AUTO FAN MODE 1 SET POINT FAN TIMER SPEED SCHEDULE 40 The display shows a normal system Press and hold the HOUR button Figure 4 for 3 seconds Note The Timer start stop times may be set even when the system is in the Timer or Schedule mode SYSTEM TIMER SCHEDULE Hoe FRR141 Use the ZN or M button to adjust the hour Press the TIMER SET button Figure 4 to adjust the minutes FAN SPEED FRR142 Use the P or M button to adjust the minutes Press the TIMER SET button Figure 4 within 15 seconds to exit and save the setting The timer is now set to start at 4 21 AM The display will return to normal 18 Stop Time SYSTEM T O MODE FAN TIMER SPEED SCHEDULE FRR144 The display shows a normal system Press and hold the MIN button Figure
39. to operate in outdoor temperatures from 60 to 115 F 3 0 2 4 2 3 2 5 2 6 2 6 2 6 ENERGY STAR models Moisture Pints HR 1 0 2 0 3 0 3 5 2 8 3 5 3 5 4 6 6 0 10 0 6 0 7 0 8 5 12 0 1 9 3 0 5 4 7 0 2 8 3 5 4 6 10 0 12 0 K hl Heat Pump heating information shown in red indicates heat pump performance K hl and Chill Electric Heat heating information shown in red indicates electric heat strip performance For K hl Heat Pump electric heating performance refer to corresponding K hl CFM Sleeve 265 260 300 325 275 360 360 350 425 390 625 640 600 725 285 265 370 600 275 360 350 390 725 S S 5 5 5 5 L L L L S S M L S S M M L Net Ship Wt Wt 99 121 106 136 112 136 116 133 112 134 116 136 141 154 140 158 132 153 152 167 191 212 192 213 193 214 212 227 109 131 115 136 141 152 197 212 113 128 117 133 141 158 153 166 213 225 Electric Heat model As an ENERGY STAR partner Friedrich Air Conditioning Co has determined that the selected ENERGY STAR models meet the ENERGY STAR guidelines for energy efficiency All models use environmentally friendly R 410A refrigerant The consumer through the AHAM Room Air Conditioner Certification Program can be certain that the AHAM Certification Seal accurately states the unit s cooling and heating capacity rating the amperes and th
40. ystem Mode an Mode an Speed et Point Cool et Point Heat tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat TI amami Tues o 0 00 to 5 0 0 00 OO t ed 5 0 0 e IN IN 0 00 t ed 5 0 00 00 OO uto ed 5 0 00 NI 0 ool ut ed 5 0 tart Time ystem Mode tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat tart Time ool System Mode ool System Mode t an Mode t an Mode ed Fan Speed Med Fan Speed 4 et Point Cool 4 et Point Cool 2 et Point Heat 2 et Point Heat tart Time ystem Mode n Mode an Speed et Point Cool et Point Heat tart Time o lt o 2 gt b e a 19 e o o n ct em c NI 5 et Point Heat tart Time ystem Mode ool System Mode n Mode ut an Mode n Speed Med n Speed et Point Cool 4 et Point Cool et Point Heat 2 et Point Heat an Speed et Point Cool et Point Heat tart Time ool System Mode ut n Mode ed Fan Speed 4 et Point Cool 4 2 et Point Heat 2 4 2 0 ool t o 00 gt Q ____ D 00 ool ut CY CY 7 CY 7 CY 7 CY 7 CY un O gt gt gt gt gt gt D mn co D N A 2 gt
41. 0823VAC Et 10 61878612 HEATERS2KWQ23V __ _ _ 1 t 61871466 FANMOTOR OY p t 1 pit 687147 FANMOTOR ___ _ 1 pq 4 4 _ pq t 12 60500394 SUPPYCORD13A280V ______ 12 60500398 SUPPYCORD20A28V d 12 6050099 SUPPYCORD30A280V _ 4 J tt 13 60179904 CONDENSATE DRAINVALVE 1 _ 14 60610617 BLOWERWHEEL U 4 4 4 4 f p pj 4 14 60610619 BLOWRWHEL U I 1 4 _ _ t ____ 14 60610620 BLOWERWHEEL U I I 4 4 d e 31 4 14 60610620 BLOWERWHEEL tT 16 60542007 FANBLADE T TI Pt 4 1 4 t1 17 61807702 sHROUD RG 4 4 1 4 18 61806700 MOUNLFANMOTOR __ _ _ 1 4 t 4 89 K hl amp Larqe Chassis 2012 Parts List x Part Number Part Description EL25N35 A EL36N35 A SL22N30 A SL25N30 A SL28N30 A SL36N30 A YL24N35 A o1 1 12 t1 1 P 1 1 61817600 INSULUSPANELIRG tt 1 4 4 1 j 23 61818201 INSULTOPCOVERIRG S 1 1 4 1 25 61817800 BLOWERFRONTIRG __ _ __1 4 4 1 1 1 C 61876902 2 emos PANEL CONTROLIRG o r 3 r L Cas a 1 3 L r L T r Cm emos mew _ T T T T T kes eass T r L TT T CC Em emos
42. 26 F or less Not Applicable Not Applicable 23 Key Sequence Action To Access Error Codes Press the fan speed and 4 key for seconds Reset Error Codes amp Error History Press timer schedule for 3 seconds When you have entered the Error Codes section an E will appear Use the up and down keys to scroll through error codes Only active error codes will display 56 This function is used to test the compressor operation By turning it on it allows the service technician to bypass the compressor s 3 minute time delay Press the 9 ERI rw amp BRE buttons simultaneously for 3 seconds This will activate the test mode FAN MODE FAN SPEED The ON icon will appear for 5 seconds and the display will then revert to the normal display The test mode will time out after 1 hour To cancel test mode unplug and replug the power cord SYSTEM SET POINT MODE FAN SPEED Normal display 57 THERMISTORS RESISTANCE VALUES This Table Applies to All Thermistors RESISTENCE K Ohms RESISTANCE TOLERANCE F CENTR MIN 25 0 9241 97662 102912 538 538 5 16 4 94 472 4 50 60 15253 15684 16115 275 275 66 13004 13335 13666 248 248 68 12341 12644 12947 23 239 69 12024 12313 12603 235 235 80 9070 9265 9459 2101 210 86 7789 797
43. AN MODE 1 SET POINT FAN TIMER SPEED SCHEDULE Hoe Normal display 54 Erasing the Diagnostic Codes FAN SPEED The E will blink for 3 seconds FAN SPEED After the E blinks for 3 seconds the display returns to normal ERROR CODES AND ALARM STATUS Code Front Panel Button Stuck For More Continue to monitor for OPEN Unstuck switch Do not process switch Than 20 Seconds input ENSURE FRONT COVER DOES NOT DEPRESS BUTTONS pos pou ise Hus until voltage is back within specs Resume operation Shorted operate Open or Shorted continues to operate Sets temp to 20 F Override sensor Continue operation Use Elec Heat if available for HEATING If not available use HEAT PUMP if outdoor temp allows Outdoor Coil Temperature Sensor is Open or Shorted Shut down for 5 min Resume operation for 3 min Continues to monitor If Outdoor Coil gt greater than 175 F test fails 3 times the unit operation is locked out Unplug and replug to reset Indoor Coil lt less than 30 F for 2 Turn compressor off Run High Fan speed When coil temp reachs 45 F consecutive minutes resume operation after lockout time EN Unit Cycles gt grater than 9 Times per hour Continue operation Continue to monitor Take no action Log Only F ese Man ames per Continue operation Continue to monitor
44. AT 4 HL ELECTRIC HEAT CAPACITOR COMPRESSOR FAN MOTOR IEEE OVERLOAD PROTECTOR USER INTERFACE THERMAL FUSE HEATER LIMIT FUSE F RELAY RELAY F 3 4 WIRING DIAGRAM POWER SUPPLY 230 208 115VAC OR YELLOW GREEN GREEN NEUTRAL 115 V L2 230 208 V REVERSING VALVE THERMISTER COMBINATION TERMINAL GROUNDED LEAD SYMBOL INSULATOR HEATER ELEMENT PART NO REV 92170020 01 K hl Electronic Control HEAT PUMP without ELECTRIC HEAT YS10N10 A F3 ELECTRONIC CONTROL 3E POWER SUPPLY 230 208 115VAC OR YELLOW GREEN GREEN CHASSIS SCHEMATIC NEUTRAL 115 V USER INTERFACE L2 230 208 V L1 5 A E SS 3 OLP FAN MTR y MEDIUM 72 2 2 2 ES FAN COM LA Low gt 1 F1 CAP oo REVERSE CYCLE A RV A 6 4 DU 12 ORN SS OLP NS Y 1 COMPRESSOR 9 COMPRESSOR HERM f COM ELECTRONIC CONTROL 72 CAP LEGEND REVERSING VALVE CAPACITOR THERMISTER COMPRESSOR FAN MOTOR COMBINATION TERMINAL OVERLOAD PROTECTOR GROUNDED LEAD SYMBOL USER INTERFACE INSULATOR THERMAL FUSE HEATER ELEMENT HEATER LIMIT FUSE PART NO REV 92170015 01 78 CHASSIS K hl Electronic Control HEAT PUMP models YS12N33 A YM18M34 A ELECTRONIC CONTROL gus ni D Ir POWER
45. CAUTION These words mean A WARN N G You can be killed or seriously injured if you do not follow instructions A CAUTION You can receive minor or moderate injury if you do not follow instructions All safety messages will tell you what the potential hazard is tell you how to reduce the chance of injury and tell you what will happen if the instructions are not followed A message to alert you of potential property damage will have the N O word NOTICE Potential property damage can occur if instructions are not followed PERSONAL INJURY OR DEATH HAZARDS ELECTRICAL HAZARDS e Unplug and or disconnect all electrical power to the unit before performing inspections maintenance or service Make sure to follow proper lockout tag out procedures Always work in the company of a qualified assistant if possible e Capacitors even when disconnected from the electrical power source retain an electrical charge potential capable of causing electric shock or electrocution e Handle discharge and test capacitors according to safe established standards and approved procedures Extreme care proper judgment and safety procedures must be exercised if it becomes necessary to test or troubleshoot equipment with the power on to the unit Do not spray or pour water on the return air grille discharge air grille evaporator coil control panel and sleeve on the room side of the air conditioning unit while cleaning
46. D ISOLATION 3X6 61883101 48PADISOLATION 2X4 NEEN p 61821900 SHELDHEATLRG I 1 6084600 ASSYPLSTCBAGWWIK __ o P i 60846017 ASSYPLSTCBAGWIOWK 4 1 60073300 GASKETURETHANEFOAM __ 61819601 SHELLGUDESML L A i 61826400 CHASSIS RETAINER WIRE 90 91 1 Schedule Table with Energy Saving Values Pre Programmed Residential Schedule Option 1 Wed Thur tart Time tart Time ystem Mode ystem Mode an Mode an Mode an Speed an Speed et Point Cool et Point Cool et Point Heat et Point Heat tart Time ool System Mode t an Mode ow Fan Speed 5 et Point Cool et Point Heat Period Sun tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat Mon tart Time ool System Mode uto Mode w Fan Speed et Point Cool et Point Heat tart Time ool System Mode to Fan Mode ow Fan Speed 5 et Point Cool 2 et Point Heat 80 tart Time 00 stem Mode uto Fan Mode ow Fan Speed 8 et Point Cool 0 et Point Heat 200 Start Time ool System Mode to Fan Mode ow Fan Speed 2 et Point Cool 2 et Point Heat Fri tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat tart Time ool System Mode uto Fan Mode ow Fan Speed 5 et Point Cool et Point Heat 00 Start Time 00 stem Mode uto Fan Mode
47. ER INTERFACE THERMAL FUSE HEATER LIMIT FUSE THERMISTER COMBINATION TERMINAL GROUNDED LEAD SYMBOL INSULATOR HEATER ELEMENT PART REV 92170019 01 K hl Electronic Control COOL ONLY Models SL22N30 A SL24N30 A SL24N30 B ELECTRONIC CONTROL BLACK POWER SUPPLY 230 208 115VAC OR YELLOW GREEN GREEN wem BROWN TO chassis SCHEMATIC NEUTRAL 115 V L2 230 208 V A R OLP OY e COMPRESSOR 70 O HERM COM O etecrronic CONTROL 5 COMP CAPACITOR REVERSING VALVE COMPRESSOR THERMISTER FAN MOTOR OVERLOAD PROTECTOR COMBINATION TERMINAL USER INTERFACE GROUNDED LEAD SYMBOL THERMAL FUSE INSULATOR HEATER LIMIT FUSE HEATER ELEMENT PART NO REV 92170021 01 73 K hl Electronic Control COOL ONLY Models SL28N30 A SL28N30 B SL28N30 C gt CHASSIS SCHEMATIC s COMP CAPACITOR COMPRESSOR FAN MOTOR OVERLOAD PROTECTOR USER INTERFACE THERMAL FUSE HEATER LIMIT FUSE SOLID STATE RELAY ELECTRONIC CONTROL POWER SUPPLY 230 208 115VAC OR YELLOW GREEN GREEN REVERSING VALVE THERMISTER COMBINATION TERMINAL GROUNDED LEAD SYMBOL INSULATOR HEATER ELEMENT NEUTRAL 115 V L2 230 208 V PART NO REV 92170013 01 74 gt CHASSIS K hl Electronic Control COOL ONLY Models SL36N30 A ELECTRONIC CONTROL DISCHAR
48. FRIEDRICH prior to repairs being made 9 12 CUSTOMER SATISFACTION and QUALITY ASSURANCE Friedrich is a conscientious manufacturer concerned about customer satisfaction product quality and controlling warranty costs As an Authorized Service Provider you play a vital role in these areas By adhering to the policies and procedures you provide us with vital information on each warranty repair you complete This information is used to identify product failure trends initiate corrective action and improve product quality thereby further reducing warranty expenses while increasing customer satisfaction levels FRIEDRICH AUTHORIZED PARTS DEPOTS AAA Refrigeration Service The Gabbert Company Reeve Air Conditioning Inc 1322 24th Street Suite B 6868 Ardmore 2501 South Park Road Kenner Louisiana 70062 Houston Texas 77054 Hallandale Florida 33009 504 464 7444 713 747 4110 954 962 0252 877 813 7444 800 458 4110 800 962 3383 Alamo Service Company Johnstone Supply of Woodside Valley of the Sun 1450 North Flores Street 27 01 Brooklyn Queens Expway 4710 W Dewey Drive San Antonio Texas 78212 Woodside New York 11377 Las Vegas NV 89118 210 227 2450 718 545 5464 702 547 4900 800 328 2450 800 431 1143 866 259 8500 A C Warehouse International Parts Depot 670 Avahl Street Traco Corp Honolulu Hi 96813 380 Paterson Road 808 545 3084 Carlstadt NJ 07072 201 939 1600 TECHNICAL SUPPORT CONTACT INFORMATION FRIEDRICH FRIEDRICH AIR CONDITI
49. GE AIR INDOOR AMBIENT THERMISTOR THERMISTOR VOLTAGE SELECTOR JUMPER WIRE POWER SUPPLY 230 208 115VAC OR YELLOW GREEN GREEN NEUTRAL 115 V USER INTERFACE L2 230 208 V pA Q 9 OLP C FAN MTR 70 s 5 E REVERSING VALVE COMPRESSOR THERMISTER CAPACITOR FAN MOTOR OVERLOAD PROTECTOR COMBINATION TERMINAL USER INTERFACE GROUNDED LEAD SYMBOL THERMAL FUSE INSULATOR HEATER LIMIT FUSE HEATER ELEMENT PART NO REV 92170018 01 T5 K hl Electronic Control COOL with ELECTRIC HEAT Models ES12N33 A ES15N33 A EM18N34 A EM24M34 A WIRING DIAGRAM POWER SUPPLY 230 208 115VAC BROWN OR YELLOW GREEN z CHASSIS SCHEMATIC NEUTRAL 115 V USER INTERFACE L2 230 208 V N 9 9 OLP HIGH 72 ELECTRIC HEAT 0 5 ia HT ELECTRIC HEAT ALA OLP S Q 7 e COMPRESSOR 5 COMP 7 2 HERM y ELECTRONIC coNTROL CAP LEGEND CAPACITOR REVERSING VALVE COMPRESSOR THERMISTER FAN MOTOR OVERLOAD PROTECTOR COMBINATION TERMINAL USER INTERFACE GROUNDED LEAD SYMBOL THERMAL FUSE INSULATOR HEATER LIMIT FUSE HEATER ELEMENT PART NO REV 92170014 01 76 K hl Electronic Control COOL WITH ELECTRIC HEAT Models EL36N35 A CHASSIS SCHEMATIC u HIGH ELECTRIC HE
50. H 3SP GEN2 o ot 7 600529 CAPACITOR O CAPACITOR jJ j j lot U 7 600588 CAPACITOR I 4 4 4 4 rL _ j 7 6108051 CAPACITOR ___ _ 1 j 7 6000592 CAPACITOR L J jJ 4 CAPACITOR STRAP 2 0 DIAMETER lr pp jprtijpst 61820702 CAPACITOR STRAP 2 5 DIAMETER 1 4 o 61820401 CAPACITOR MOUNTING BRACKET 1 1 t 4 1 _8 25063605 COIL SOLENOID 208 230VAC ____ __ j j _ OVERLOAD t1 J 9 61764570 JoveRLOAD j 1 __ 10 61878611 HEATER4OKWO207 7 I L 1 1 11 61871495 EINMOTOR L 1 1 1 6798 FANMOTOR L Jo o 12 60500390 SUPPLYCORD 15A 26V 4 12 60500394 SUPPLYCORD 1342507 1 L 12 60500398 SUPPLY CORD 20A 250V Olt 12 60500399 SUPPLYCORD30A28V A 13 60179904 CONDENSATEDRANVALVE ttt 14 60610616 4 BLOWER WHEEL j E 14 601018 BLOWERWHEEL tt 15 61817505 SCROLLMD 4 4 4 4 1 1 1 1 1 FAN BLADE N 8 K hl 8 Medium Chassis 2012 Parts List mi Part Number Part Description EM18N34 A EM24N34 A SM15N10 A SM18N30 A SM21N30 A SM24N30 A YM18N34 A ASSY DOORISLIDE S M L CONNECTOR FRESH AIR S M 61817100 DECK SMLIMED INSUL TOP COVER SIM INSUL INNERWALL MED 61804310 ASSY PARTITION MED 29 61803461 3
51. Inoperative system switch Check for continuity of system switch Problem Possible Cause Action Heating capillary tube partially Check for partially starved outer coil Replace restricted heating capillary tube owitch unit several times from heating to Cooling adequate cooling Check temperature rise across but heating coil Refer to specification sheet for correct insufficient temperature rise Denergize solenoid coil raise head pressure energize solenoid to break loose If valve fails to make complete shift replace valve Unit cools when heat is called for Reversing valve fails to shift Check valve leaking internally Reversing valve failing to shift completely bypassing hot gas TROUBLESHOOTING CHART HEAT PUMP REFRIGERANT SYSTEM DIAGNOSIS COOLING CYCLE Low Air Flow Across High Air Flow Across Refrigerant System Low Air Flow Across Indoor Coil Indoor Coil Restriction Outdoor Coil Refrigerant System Reversing Valve not Reversing Valve not Overcharged Restriction Fully Seated Fully Seated Undercharged Overcharged Undercharged Noncondensables air in System Moisture in System Defective Compressor Defective Compressor 66 HEAT PUMP ROOM AIR CONDITIONERS TROUBLE SHOOTING TIPS REFRIGERANT SYSTEM DIAGNOSIS HEATING CYCLE LOW SUCTION PRESSURE HIGH SUCTION PRESSURE LOW HEAD PRESSURE HIGH HEAD PRESSURE Low Airflow Outdoor Ambient Too High Refrigerant System Outdoor Ambient Too High Across Outdoor Coil f
52. LLL a Lr emo oos 3 T r eme joo _ L T L T T 61610500 EXPANDED 3 L r L L r L7 eee scRPTFREDRC reson L r 3 L T r 9100290 sPeeonuTPusHTvPE 3 3 L3 emews evaporaTorcon L r L T L3 emo 3 L r T r Kamma 3 LL emm r L r T emer cowmessonkremop L 3 L L r T T r 3 T emo jorss L L L T T Te _ T ewe ISA T L T TT T r wa were 2 2 T pere pa L T rs _ T 2 L T T T SCS L4 2502203 e 62601013 ELECTRONIC CONTROL service 35 31 1 T T e 62601011 ELECTRONIC CONTROL service 3 1 L 1 T 62601012 ELECTRONIC CONTROL SERVICE KIT O OO T 6108059 CAPACITOR 32 yo o 7 61080588 p 7 600050 CAPACITOR st 7 6tosost4 pj j tf 61820700 OAPACTORSTRAP2ODAMETER 1 4 61820702 CAPACITOR STRAP 25 DIAMETER J 1 31 _ t1 4 1 6182040 CAPACITOR MOUNTING BRACKET 1 1 1 1 1 1 1 8 25063605 cOLSOLENOD2
53. MENT PART NO REV 92170017 01 ya K hl Gen2 Remote Control 4 FRIEDRICH Replacement Remote Control Configuration Instructions For Use with Kuhl cool only models and K hl cool 8 heat models N models only Contents Remote Control with Holder 2 AAA batteries Instruction Sheet ATTENTION If the Remote Control Does not Control the Unit You May Need to Configure it Follow the steps below to configure Please read instructions completely before attempting configuration of the Remote Control Before performing the steps below please test the remote control with your Air Conditioning unit as it may already configured for your unit model type Step 1 the Remote Control at the Air Conditioning Unit and press the Remote Control key once to illuminate the Air Conditioning Unit s display Step 2 Once the display on the Air Conditioning Unit is illuminated note the number shown in the display See Figure 1 Step 3 With the Remote Control display illuminated press and hold the Remote Control and the Keys simultaneously for approximately 6 seconds until the Remote Control displays current configuration number message See Figure 2 If the number displayed does not match what is shown on the Remote Control display you will need to change the Remote Control s setting to match that of the Air Conditioning Unit Air Conditioner Message Remote Control Message Figure 2 80 y
54. MPORTANT It will be necessary for you to accurately identify the unit you are servicing so you can be certain of a proper diagnosis and repair See Unit Identification code on page 6 MODEL AND SERIAL NUMBER LOCATION Register your air conditioner Model information can be found on the name plate behind the front cover For your future convenience record the model information here MODEL NUMBER SERIAL NUMBER PURCHASE DATE UNIT IDENTIFICATION Model Number Code 5508 1 0 BA 9th Digit Engineering Suffix Major modification Subject to change 1st Digit Function S Straight Cool Value Series Y Heat Pump E Electric Heat 8th Digit Marketing Suffix Indicates modification Subject to change 7th Digit Options 0 Straight Cool amp Heat Pump Models 3 3 KW Heat Strip Nominal 4 4 KW Heat Strip Nominal 5 5 KW Heat Strip Nominal 2nd Digit S Small Chassis M Medium Chassis L Large Chassis 6th Digit Voltage 1 115 Volts 3rd and 4th Digit Approximate 3 230 208 Volts BTU HR in 1000s Cooling Heating BTU Hr capacity listed in the Specification Performance Data Section 5th Digit Alphabetical Modifier RAC Serial Number Identification Guide Serial Number 00001 Decade Manufactured L 0 C 3 F 6 Production Run Number A 1 D 4 G 7 B 2 E 5 H 8 Year Ma
55. ONING CO 10001 Reunion Place Ste 500 San Antonio TX 78216 210 546 0500 877 599 5665 x 261 FAX 210 546 0631 Email tac friedrich com www friedrich com Printed in the U S A Kuhl Serv PartsMan 9 12 93 4 FRIEDRICH FRIEDRICH AIR CONDITIONING CO 10001 Reunion Place Ste 500 San Antonio TX 78216 P 210 546 0500 210 546 0731 www friedrich com Printed in the U S A Kuhl Serv PartsMan 9 12
56. OTE Adamaged power supply cord must be replaced with a new power supply cord obtained from the product manufacturer and must not be repaired The return discharge air grille is Ensure that the return and or discharge air blocked paths are not blocked by curtains blinds furniture etc Ensure that all windows and doors are closed The temperature is not set at a cool Adjust the Temperature control to a cooler or enough warm enough setting warmer setting as necessary Unit Does Not Cool Heat Clean the filter See Routine Maintenance or w The filter is dirty or obstructed U Room Sufficiently Or Cycles remove obstruction On And Off Too Frequently The indoor coil or outdoor coil is Clean the coils See Routine Maintenance or dirty or obstructed remove obstruction Be sure to use exhaust vent fans while cooking or bathing and if possible try not to use heat There is excessive heat or moisture cooking showers etc in the room producing appliances during the hottest part of the day The temperature of the room you Allow additional time for the air conditioner to are trying to cool is extremely hot cool off a very hot room 60 TROUBLESHOOTING TIPS Continued Possible Cause Possible Solution Unit Does Not Cool Heat Room Sufficiently Or Cycles On And Off Too Frequently continued Unit Runs Too Much The outside temperature is below 60 16 C The digital control is set t
57. R COIL TO COMPRESSOR SUCTION TO INDOOR COIL uy ilL gt HOT BOTH THE SAME TEMPERATURE BOTH THE SAME TEMPERATURE 2 COOL BOTH THE SAME EMPERATURE FROM COMPRESSOR DISCHARGE Touch Test Heating Cooling Cycle WARNING BURN HAZARD Certain unit components operate at temperatures hot enough to cause burns 2g Proper safety procedures must be followed and proper protective clothing must be yin worn ESSEE Failure to follow these procedures could result in minor to moderate injury The only definite indications that the slide is in the mid position is if all three tubes on the suction side of the valve are hot after a few minutes of running time NOTE A condition other than those illustrated above and on Page 44 indicate that the reversing valve is not shifting properly Both tubes shown as hot or cool must be the same corresponding temperature Procedure For Changing Reversing Valve A WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refrigerants Failure to follow these procedures could result in serious injury or death FIRE HAZARD The use of a torch reguires extreme care and proper judgment Follow all safety recommended precautions and protect surrounding areas with fire proof materials Have a fire extingu
58. RESET BUTTON 2 PLUG LCDI INTO POWER P RECEPTACLE 4 PRESS TEST BUTTON 3 PRESS TEST BUTTON FOR USE RESET BUTTON SHOULD DO NOT USE IF ABOVE TEST POP UP s 4 PRESS TEST BUTTON WHEN GREEN LIGHT IS ON FOR US IT IS WORKING PROPERLY DO NOT USE IF ABOVE TEST 8 WHEN GREEN LIGHT IS ON IT IS WORKING PROPERLY 15 20A LCDI Device 30A LCDI Device FRR001 11 Control Options The K hl gives you a variety of options for control programming and scheduling including wireless capabilities Wireless Programming and Control The new FriedrichLink Adapter sold seperately allows you to conviently control program and monitor your air conditioning unit remotely from a smartphone or computer FriedrichLink Adapter accessory available through Friedrich authorized retailers or www friedrich com See FriedrichLink Adapter section on www friedrich com for complete details Pre Programmed Scheduling Options Your unit s digital control comes eguipped with a 24 hour timer and two pre programmed 7 day energy management options 24 Hour Timer The 24 hour timer allows you to turn the unit off and on at pre set times by setting an on and off time on the unit control panel See page 11 for details on timer set up Pre programmed Energy Management Your unit comes from the factory with two 2 Pre programmed Energy Management settings are shown in Addendum 1 Residential amp Commercial Schedule Table Energy M
59. SUPPLY 230 208 115VAC OR YELLOW GREEN z W tc O SCHEMATIC fr 9 NEUTRAL 115 V USER INTERFACE L2 230 208 V gt OLP e FAN MTR HIGH 72 d e 4 ELECTRIC HEAT 0 COM CAP Le OR N RV SS CR 0090 RV OLP O O COMPRESSOR COMPRESSOR pu 5 72 HERM com ELECTRONIC CONTROL YO LEGEND REVERSING VALVE CAPACITOR THERMISTER COMPRESSOR FAN MOTOR COMBINATION TERMINAL OVERLOAD PROTECTOR GROUNDED LEAD SYMBOL USER INTERFACE INSULATOR THERMAL FUSE HEATER LIMIT FUSE HEATER ELEMENT PART NO REV 92170016 01 79 K hl Electronic Control D E DU LU gt gt D O TO CHASSIS SCHEMATIC L L1 ECTRONIC CONTRO CAPACITOR COMPRESSOR FAN MOTOR OVERLOAD PROTECTOR USER INTERFACE THERMAL FUSE HEATER LIMIT FUSE ut HEAT PUMP model YL24N35 A ELECTRONIC CONTROL i POWER SUPPLY 230 208 115VAC OR YELLOWGREEN GREEN NEUTRAL 115 V L2 230 208 V FAN ELECTRIC HEAT 2 2 ELECTRIC HEAT COMPRESSOR gt 2 HERM LJ f L1 3 COMP N CAP 1 LEGEND REVERSING VALVE THERMISTER COMBINATION TERMINAL GROUNDED LEAD SYMBOL INSULATOR HEATER ELE
60. Schedule When selection 1 is selected the unit follows a pre programmed set of operational parameters that covers 5 days of the week with 4 time windows during each day Each time window has it s own set of 8 operating parameters Refer to Addendum 1 C Commercial Schedule When selection 2 is selected the unit follows a pre programmed set of operational parameters that covers 7 days of the week with 2 time windows during each day Each time window has it s own set of 8 operating parameters Refer to Addendum 1 To change the TIMER SCHEDULE selection press and hold the button for 3 sec then let go SYSTEM FAN MODE FAN O SPEED TIMER SCHEDULE FRR139 The display shows the TIMER is selected Press the ZN button once and let go SYSTEM FAN 9 SPEED TIMER SCHEDULE FRR137 The display shows option 1 Residential Schedule is selected Press the P button once and let go HD SCHEDULE 9 TIMER SCHEDULE FRR138 The display shows option 2 Commercial Schedule is selected To save and exit selection press the TIMER SET button Figure 4 Page 18 SYSTEM E FAN AUTO FAN MODE 1 SET POINT FAN SPEED SCHEDULE RR136 The display reverts to the normal display NOTE The schedule options 1 and 2 have factory pre programmed settings which can only be changed by using the WiFi FriedrichLink adaptor an accessory With
61. T Cycle automatically LOW COOL FAN Run continuously HIGH or AUTO TEMPERATURE IR WINDOW OFF ONLY if equipped Increment DOWN Do not block Turns unit on off if equipped SYSTEM Cu OILI SET POINT PM AUTO SPEED _ TIMER SCHEDULE COOL HEAT FAN CONTROL ONLY LOCKED if equipped WAIT 3 minutes compressor time delay 2 DIGIT DISPLAY Shows Setting for Set Point Temperature Room Temperature Clock AM PM AUTO Automatically switches between cool amp heat m lt CONTINUOUS SET POINT SCHEDULE FAN SPEED Manually selected AUTO SPEED R fan speed AUTO SPEED FILTER MART OPERATING Automatically selects Check Clean if equipped best fan cooling or heating speed 13 Control Panel Operation Instructions SYSTEM The button allows you to sequentially select the modes of operation To select press once and let go AUTO MODE B Automatically changes between HEAT and COOL HEAT and COOL ONLY Units COOL MODE HEAT MODE ES Not available on some models FAN ONLY MODE Kd AUTO MODE COOL Sc AUTO Y E SET POINT FAN TIMER SPEED SCHEDULE Woe COOL ONLY MODE FRR204 E L TIMER SCHEDULE Woe HEAT MODE SYSTEM FAN MODE 7 SET POINT FAN TIMER SPEED SCHEDULE oe
62. TING AREA W X L X H SQ CUIFT This is a general guide please consult manual J or M Sizing your air conditioner correctly 15 vital Sizing Guide The following guide is based on normal room insulation average number of sun exposed windows and two person occupancy Btu h This is a general guide Please consult manual J or M for exact load calculations 1 If heavily shaded reduce capacity by 10 3 Add 500 BTU hr per person over 2 people 4 Add 4 000 BTU hr if area is a kitchen FT 2 If very sunny add 10 1 000 1 200 21 000 Due to variations in roorn design climate zone and occupancy larger areas may require the use of multiple units to provide the optimal cooling solution TROUBLESHOOTING TIPS NOTE To more accurately identify the problem first check for current maintenance alerts and their history Possible Cause Possible Solution Turn the unit to the on position and raise or lower temperature setting as appropriate to call for operation The unit is turned to the off position or the thermostat is satisfied Plug into a properly grounded 3 prong receptacle See Electrical Rating Tables on pg 6 for the proper receptacle type for your unit The LCDI power cord is unplugged Unit does not operate Press and release RESET listen for click Reset button latches and remains in to resume operation The LCDI power cord has tripped Rese
63. Take no action Log Only Only used if Electric Heat is available Run High Speed and Electric heat Room Freeze Protection S room temp reaches 46 F Display FRZ during operation Logged Not Applicable Not Applicable Shutdown heat pump and electric heater Run high fan speed until temp is Pisonarge AI SUUDA tor 100 F Resume operation Third occurance in 1 hour locks unit out Not Applicable Not Applicable Discharge Air Temperature Sensor is Override Sensor Set temp to 75 F Continue to monitor Set error code 14 Open or Shorted ON Heat Pump Reversing Valve Error If indoor coil temp Lesser than ambient temp for 5 minutes Unit uses electric heat to i heating Ambient temp lt less than 0 F and ambient temp gt greater than 130 F 16 Temperature ROYONG por mg Set error code 16 ON When cleared return unit to normal qu wade MINIMUM Must have compressor enabled and at least 2 fan speeds Configuration Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable EN Outdoor Coil Temperature 30 F for 2 Unit will use electric heat to satisfy heating demands until temp is greater consecutive Minutes than 45 F Unit must be a Heat Pump with electric heat Frost Protection for Heat Pump Only Unit will run active defrost for up to 6 minutes when Heat Pump run time Unit YS10M10 is greater than 60 minutes and outdoor coil temp is
64. a K hl Gen2 Remote Control 4 FRIEDRICH Step 4 Using the Remote Control Increase Decrease Keys match the configuration number displayed on the Remote Control to the number shown on the Air Conditioning Unit display see examples below Air Conditioning Unit Display Remote Control Display Step 5 save setting in Remote Control press and hold the Remote Control 19810 5 and Key simultaneously for approximately 6 seconds until the displayed configuration number on the Remote Control flashes The Remote Control is now configured to work with the air conditioner 81 FRIEDRICH K hl User Interface Service Kit Replacement Instructions For Use with K hl cool only models and K hl cool and heat models ATTENTION Please read these instructions completely before attempting replacement Always unplug the power supply from the power supply receptacle Contents User Interface UI Ribbon Cable 2 Mounting screws for UI Instruction Sheet Step 1 Disconnect ribbon cable by pulling straight out Step 2 Remove 2 mounting screws securing UI and disconnect ribbon cable Step 3 Remove l and ribbon cable from handle assembly Step 4 Install new UI using the 2 screws route new ribbon cable and reattach ribbon cable to UI and Main control board Step 5 Verify control operation Ribbon cable connection Mounting screws 82 PARTS SECTION K hl amp K hl Standard Chassis Unit Exploded D
65. anagement Schedule Options are 1 Residential Schedule 40 Hr Work Week 2 Commercial Schedule 7 Day Business Week Figure 2 The Residential 40 Hr Work Week Schedule has four 4 time periods 06 00 08 00 18 00 and 22 00 This option will cause your K hl Q unit to raise the room temperature temporarily to 85 F during the hours when most people are away at work lower them again to 78 F prior to the time when most people will return home and then raise slightly to 82 F to maintain a comfortable temperature overnight The Commercial 7 Day Business Week Schedule has two 2 time periods 07 00 and 18 00 This option will cause your air conditioner to raise temperatures to 84 F after typical working hours and on weekends when commercial spaces are typically unoccupied See Control Panel Operation Instructions Section Customizable Programming Options Customizable schedules with up to four temperature adjustments per day can either be uploaded to the unit via the air conditioner s built in micro USB interface or conveniently transmitted wirelessly using the new FriedrichLink Adapter accessory greatly simplifying the programming of one or multiple units Figure 2 See www friedrich com for complete Customizable Programming instructions Smart Grid The Kuhl Unit is also able to be controlled by a Smart Grid smart Grid is a network that brings electricity from power stations to consumers using
66. and highest energy efficiency Keep the filter clean Make sure that your air conditioner is always in top performing condition by cleaning the filter regularly Provide good air flow Make sure the airflow to and from the unit is clear Your air conditioner puts the conditioned air out at the top of the unit and takes in unconditioned air at the bottom Airflow is critical to good operation It is just as important on the outside of the building that the airflow around the unit exterior is not blocked Unit placement If your air conditioner can be placed in a window or wall that is shaded by a tree or another building the unit will operate even more efficiently Using drapes or blinds on the sunny side of the dwelling will also add to your unit s efficiency Insulation Good insulation will be a big help in maintaining desirable comfort levels Doors should have weather stripping Be sure to caulk around doors and windows Proper installation of seal gasket Make sure the seal gasket has been installed properly to minimize noise and improve efficiency If the seal gasket has not been installed please refer to the installation instructions ELECTRICAL DATA WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation All electrical connections and wiring MUST be installed by a qualified electrician and conform to the National Electrical Code and all local codes which have jurisdiction Fa
67. at incorrectly wired Refer to appropriate wiring diagram Thermistor shorted Replace thermistor or electronic control board Possible Cause Possible Solution Compressor relay contacts stuck Replace electronic control board Turn to higher temp setting to see if unit Electronic control Temperature set at coldest point 9 9 cycles off If not replace control board turn unit off 7 w Incorrect wiring Refer to appropriate wiring diagrams Unit undersized for area to be Refer to industry standard sizing chart Defective thermistor Replace thermistor or electronic control board COOLING ONLY ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Overload inoperative Opens too Check operation of unit Replace overload if soon system operation is satisfactory Compressor restarted before Control s default of 3 minutes wait delay timer system pressures equalized inoperative Replace board Check voltage with unit operating Check for Compressor runs other appliances on circuit Air conditioner Low or fluctuating voltage for short periods should be in a dedicated circuit for proper only Cycles on voltage amp fused separately overload Incorrect wiring Refer to appropriate wiring diagram Shorted or incorrect capacitor Test capacitor and replace if needed Restricted or low air flow through Check for proper fan speed or blocked condenser coil or evaporator coil coils Correct as needed Check for kinked
68. ating compressor with only one main exception NEVER under any circumstances liquid charge a rotary compressor through the LOW side Doing so would cause permanent damage to the new compressor Use a charging adapter ROUTINE MAINTENANCE WARNING ELECTRIC SHOCK HAZARD Turn off electric power before inspections maintenances or service Extreme care must be used if it becomes necessary to work on equipment with power applied Failure to do so could result in serious injury or death WARNING EXCESSIVE WEIGHT HAZARD Use two people to lift or carry the unit and wear proper protective clothing Failure to do so may result in personal injury 44 WARNING CUT SEVER HAZARD Be careful with the sharp edges and corners Wear protective clothing and gloves etc Failure to do so could result in serious injury NOTICE Units are to be inspected and serviced by qualified service personnel only Use proper protection on surrounding property Failure to follow this notice could result in moderate or serious property damage NOTICE Do not use a caustic coil cleaning agent on coils or base pan Use a biodegradable cleaning agent and degreaser to prevent damage to the coil and or base pan AIR FILTER The air filter should be inspected weekly and cleaned if needed by vacuuming with a dust attachment or by cleaning in the sink using warm water and a mild dishwashing detergent Dry the filter thoroughly befo
69. before valve can shift FROM VALVE DISCHARGE 4 WAY REVERSING VALVE 42 43 TESTING THE REVERSING VALVE SOLENOID COIL WARNING ELECTRIC SHOCK HAZARD Unplug and or disconnect all electrical power to the unit before performing inspections maintenances or service Failure to do so could result in electric shock serious injury or death The solenoid coil is an electromagnetic type coil mounted on the reversing valve and is energized during the operation of the compressor in the heating cycle Turn off high voltage electrical power to unit Unplug line voltage lead from reversing valve coil Check for electrical continuity through the coil If you do not have continuity replace the coil 4 Check from each lead of coil to the copper liquid line as it leaves the unit or the ground lug There should be no continuity between either of the coil leads and if there is coil is grounded and must be replaced 5 If coil tests okay reconnect the electrical leads 6 Make sure coil has been assembled correctly NOTE Do not start unit with solenoid coil removed from valve or do not remove coil after unit is in operation This will cause the coil to burn out CHECKING THE REVERSING VALVE NOTE You must have normal operating pressures before amp AWARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure Proper safety procedures must be
70. can be avoided by proper connection of the running capacitor terminals From the supply line on a typical 230 volt circuit a 115 volt potential exists from the R terminal to ground through a possible short in the capacitor However from the S or start terminal a much higher potential possibly as high as 400 volts exists because of the counter EMF generated in the start winding Therefore the possibility of capacitor failure is much greater when the identified terminal is connected to the S or start terminal The identified terminal should always be connected to the supply line or R terminal never to the S terminal When connected properly a shorted or grounded running capacitor will result in a direct short to ground from the R terminal and will blow the line fuse The motor protector will protect the main winding from excessive temperature Dual Rated Run Capacitor Hook up NN FAN MOTOR COM lk RUN CAPACITOR 33 COMPONENTS TESTING continued HEATING ELEMENT All heat pumps and electric heat models are equipped with a heating element with the exception of model YS10M10 The other YS and ES models equipped with a 3 3 KW element The YM and EM models are equipped with a 4 0 KW element The YL and EL models are equipped with a 5 2 KW element Heating Element The heating element contains a fuse link and a heater limit switch The fuse
71. cedures could result in moderate or serious injury 8 Crimp the process tube and solder the end shut 38 44 WARNING WARNING ELECTRIC SHOCK HAZARD HIGH PRESSURE HAZARD Turn off electric power before service or Sealed Refrigeration System contains refrigerant installation 5 and oil under high pressure Extreme care must be used if it becomes et UMA Proper safety procedures must be followed necessary to work on equipment with power NU IgA and proper protective clothing must be worn applied ES when working with refrigerants Failure to do so could result in serious injury or Failure to follow these procedures could death result in serious injury or death Undercharged Refrigerant Systems A check of the amperage drawn by the compressor An undercharged system will result in poor performance motor should show a lower reading Check the Unit low pressures etc in both the heating and cooling cycle Specification After the unit has run 10 to 15 minutes check the gauge pressures Gauges connected to system with an undercharge will have low head pressures and substantially low suction pressures Whenever you service a unit with an undercharge of refrigerant always suspect a leak The leak must be repaired before charging the unit To check for an undercharged system turn the unit on allow the compressor to run long enough to establish working pressures in the system 15 to 20 minutes T Compres
72. cts between automatic 192711 or 10077175 operation In the mode the fan only turns on and off when the compressor operates or the heat function is enabled NOTE is not available in the FAN ONLY Mode the display indicates In the mode fan speed is determined by your selection on the Beli button SIDE VIEW FAN SPEED Button Used to sequentially select new fan speed plus AUTO operation When the button is pressed the fan speed icon triangle changes to indicate the new speed level Fan speed automatically varies depending on the set temperature on the control panel and the actual room temperature For example if there is a big difference between your set temperature and the actual room temperature the system fan speed increases to HIGH It remains at this speed until the room temperature matches the set temperature TIMER SCHEDULE Button The button turns the schedule function on and off Press the Schedule button once to turn on the Schedule Residential Commercial or Timer that has already been selected on your unit Pressing the PIM button a second time turns the schedule function off UP and DOWN Arrows Pressing either the P UP KA DOWN button changes the desired room temperature The factory preset lower and upper limits are 60 F 16 C and 99 F 37 C These buttons are also used to navigate between function options when using the User Menu or Maintenance Mode Remote Effectivenes
73. d Part Number Part Description EM18N34 A EM24N34 A SM15N10 A SM18N30 A SM21N30 A SM24N30 A YM18N34 A oo LLL CI 61850227 CONDENSOR COIL 1 61850140 coNpNSORCOL gt Yo pto 1 61850244 CONDENSORCOIL U I I I 4 1 po pt ____ 1 61850141 CONDENSORCOL U I 1 j poo po J EXPANDED METAL GRILLE PAINTED MED 91002900 SPEEDNUTPUSHTYPE L 3 3 3 3 3 3 3 2 61850108 EVAPORATORCOL Ass 62050030 EVAPORATOR COIL Al LLL j por 2 62050034 EVAPORATORCOL Ao t 2 61850130 ____9_ 9____ 1 Jo o Jo d o o 62050040 EVAPORATOR COIL Oo 61834800 STRAINER 312cok 4 1 1 1 61834801 STRANERSSCOL __ ps 3 61718111 COMPRESOR KIT 6220081 Et COMPRESSOR KIT 62200108 C 1t J j j po 3 61717118 COMPRESSORKITG220000 t gt 3 61717119 6200106 o pq 1 3 61718105 COMPRESSORKIT622002 J J CAPILLARY TUBE og j 360620 T 4 tf 3760513 2 3760545 CAPILLARYTUBE a ss CAPILLARY TUBE pp pp pap 4 25022032 REVERSING VALVE KIT SOLENODKT o 1 6 62601013 ELECTRONIC CONTROL SERVICE KIT CL EH 3SP GEN2 1 1 _6 62601010 ELECTRONIC CONTROL SERVICE KIT COOL 4SP GEN2 Jo 1 1 1 _6 62601012 ELECTRONIC CONTROL SERVICE KIT HP E
74. d Point Set point 25 F the compressor is turned off The fan is turned off 15 seconds later The figure below illustrates the basic heat pump operation Satisfied Point Set Point __ Heat Demand gt Threshold 3 d w 4 4 2 5 2 m tj Y lt 8 Electric Heat Reversing valve Trigger Compressor Lock Out Heat Pump On Delay 5 Sec Fan Off Delay 30 Sec pre Heat Control Heat Pump Only YS10M10 Heat Pump Defrost Cycle Operation The defrost in this unit is an active reverse cycle The defrost control runs in the background and determines when a defrost cycle is required Once initiated the defrost cycle runs to completion The defrost cycle can only be initiated when the heat pump is in operation The compressor will not be turned off to avoid activating the compressor s time delay The reversing valve will be switched to the cool mode position The indoor fan blower will be turned off Once the defrost cycle is finished the system should re enter a heating demand cycle if required When the heat pump run time is 60 minutes or greater with an outdoor coil temperature of 26F degrees or lower the control will run an active defrost for up to 6 minutes When the temperature at the outdoor coil reaches 54F degrees the heat pump heat will resume 25 Heat Pump With Electric Heat Operation This heating is more complex due to the possibility of two heating methods If the ambie
75. ded and must be replaced Check the complete electrical system to the compressor and compressor internal electrical system check to be certain that compressor is not out on internal overload Complete evaluation of the system must be made whenever you suspect the compressor is defective If the compressor has been operating for sometime a careful examination must be made to determine why the compressor failed NOTE OHM Figures are for examples only not actual values for the compressor 3 16 OHMS 2 B S 49 OHMS 3 65 OHMS RESISTANCE RESISTANCE EQUALS RESISTANCE 46 Many compressor failures are caused by the following conditions 1 Improper air flow over the evaporator 2 Overcharged refrigerant system causing liquid to be returned to the compressor 3 Restricted refrigerant system 4 Lack of lubrication 5 refrigerant returning to compressor causing oil to be washed out of bearings 6 Noncondensables such as air and moisture the system Moisture is extremely destructive to a refrigerant system 7 Capacitor see page 34 CHECKING COMPRESSOR EFFICIENCY The reason for compressor inefficiency is normally due to broken or damaged suction and or discharge valves reducing the ability of the compressor to pump refrigerant gas A WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure Proper safety procedures must be followed
76. e energy efficiency ratio Estimated yearly operating cost based on a 2007 national average electricity cost of 10 65 cents per kWh Due to continuing research in new energy saving technology specifications are subject to change without notice LISTED Installation Information Sleeve Dimensions Depth Shell Depth to pai with Front Louvers Width 25 15 16 Extension Into Room 5 3 4 Height 15 15 16 20 16 Y Minimum extensions when mounted in window Thru the wall Installation Minimum Window Width Finished Extension Outside 16 15 16 16 15 16 18 15 16 Width 26 Minimum Maximum Height 16 3 16 Max Depth 27 3 8 Minimum widths achieved using one side curtain assembly as opposed to both in a standard installation NOTE S M and L sleeves may be installed in window with no side kits if properly installed Circuit Rating Breaker Circuit Rating Breaker or T D Fuse Plug Face NEMA SS08N10 SS10N10 SS12N10 and SS14N10 SM15N10 YS10N10 125V 15 5 15 SS12N30 SS15N30 SM18N30 SM21N30 SL22N30 250V 15A 6 15P SM24N30 SL24N30 SL28N30 ES12N33 ES15N33 YS 12N33 250V 20A 6 20P SL36N30 EM18N34 EM24N34 EL36N35 YM18N34 and YL24N35 250V 30A 6 30P Power Cord Length ft Wall Outlet Appearance SIDE VIEW For the best cooling performance
77. e in warmer climates and does not have electrical heat feature and will not provide adequate heat below SI F 2 8 53 Service and Assistance Before calling for service please check the Troubleshooting Tips section on pages 40 and 41 This may help you to find the answer to your problem avoid unnecessary service calls and save you the cost of a service call if the problem is not due to the product itself If you have checked the Basic Troubleshooting section and still need help it is available as follows You can find the name of your local Authorized Service Provider by visiting our web site at www friedrich com If you require further assistance You can call the Technical Assistance Center at 1 800 541 6645 Before calling please make sure that you have the complete model and serial number and date of purchase of your equipment available By providing us with this information we will be better able to assist you Our specialists are able to assist you with Specifications and Features of our equipment Referrals to dealers and distributors Use and Care Information Recommended maintenance procedures Installation information 9 Referrals to Authorized Service Providers and Parts depots Available Accessories DC 2 Drain Kit Part No 01900235 In some installations excess condensate water caused by extremely humid conditions may result in an undesirable water drip such as on a patio or o
78. er high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refrigerants Failure to follow these procedures could result in serious injury or death Refrigerant Charging NOTE Because the RAC system is a sealed system service process tubes will have to be installed First install a line tap and remove refrigerant from system Make necessary sealed system repairs and vacuum system Crimp process tube line and solder end shut Do not leave a service valve in the sealed system 9 High Pressure Gauge 0 to 750 108 10 Low Pressure Gauge 30 to 200 Ibs 11 Vacuum Gauge 0 1000 microns 12 Facilities for flowing nitrogen through refrigeration tubing during all brazing processes EQUIPMENT MUST BE CAPABLE OF Recovering refrigerant to EPA required levels 2 Evacuation from both the high side and low side of the system simultaneously 3 Introducing refrigerant charge into high side of the system 4 Accurately weighing the refrigerant charge introduced into the system Proper refrigerant charge is essential to proper unit operation Operating a unit with an improper refrigerant charge will result in reduced performance capacity and or efficiency Accordingly the use of proper charging methods during servicing will insure that the unit is functioning as designed and that its compressor will not be damaged Too much refrigerant overcharge
79. followed and proper protective clothing must be worn when working with refrigerants Failure to follow these procedures could result in serious injury or death Check the operation of the valve by starting the system and switching the operation from Cooling to Heating and then back to Cooling Do not hammer on valve Occasionally the reversing valve may stick in the heating or cooling position or in the mid position When sluggish or stuck in the mid position part of the discharge gas from the compressor is directed back to the suction side resulting in excessively high suction pressure Should the valve fail to shift from coooling to heating block the air flow through the outdoor coil and allow the discharge pressure to build in the system Then switch the system from heating to cooling If the valve is stuck in the heating position block the air flow through the indoor coil and allow discharge pressure to build in the system Then switch the system from heating to cooling Should the valve fail to shift in either position after increasing the discharge pressure replace the valve Dented or damaged valve body or capillary tubes can prevent the main slide in the valve body from shifting If you determing this is the problem replace the reversing valve After all of the previous inspections and checks have been made and determined correct then perform the Touch Test on the reversing valve FROM OUTDOO
80. g device is a capillary tube The purpose of the metering device is to meter i e control or measure the quantity of refrigerant entering the evaporator coil In the case of the capillary tube this is accomplished by design through size and length of device and the pressure difference present across the device Since the evaporator coil is under a lower pressure due to the suction created by the compressor than the liquid line the liquid refrigerant leaves the metering device entering the evaporator coil As it enters the evaporator coil the larger area and lower pressure allows the refrigerant to expand and lower its temperature heat intensity This expansion is often referred to as boiling Since the 5 blower is moving indoor air across the finned surface of the evaporator coil the expanding refrigerant absorbs some of that heat This results in a lowering of the indoor air temperature hence the cooling effect The expansion and absorbing of heat cause the liquid refrigerant to evaporate i e change to a gas Once the refrigerant has been evaporated changed to a gas it is heated even further by the air that continues to flow across the evaporator coil The particular system design determines at exactly what point in the evaporator the change of state i e liquid to a gas takes place In all cases however the refrigerant must be totally evaporated changed to a gas before leaving the evaporator coil
81. h com LIMITATIONS THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER WARRANTIES Anything in the warranty notwithstanding ANY IMPLIED WARRANTIES OF FITNESS FOR PARTICULAR PURPOSE AND OR MERCHANTABILITY SHALL BE LIMITED TO THE DURATION OF THIS EXPRESS WARRANTY MANUFACTURER EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGE FOR BREACH OF ANY EXPRESSED OR IMPLIED WARRANTY Performance of Friedrich s Warranty obligation is limited to one of the following methods 1 Repair of the unit 2 refund to the customer for prorated value of the unit based upon the remaining warranty period of the unit 3 Providing a replacement unit of equal value The method of fulfillment of the warranty obligation is at the sole discretion of Friedrich Air Conditioning NOTE Some states do not allow limitations on how long an implied warranty lasts or do not allow the limitation or exclusion of consequential or incidental damages so the foregoing exclusions and limitations may not apply to you OTHER This warranty gives you specific legal rights and you may also have other rights which vary from state to state PROOF OF PURCHASE Owner must provide proof of purchase in order to receive any warranty related services All service calls for explaining the operation of this product will be the sole responsibility of the consumer All warranty service must be provided by an Authorized FRIEDRICH Service Agency unless authorized by
82. hen brazing a reversing valve into the system it is of extreme importance that the temperature of the valve does not exceed 250 at any time Wrap the reversing valve with a large rag saturated with water Re wet the rag and thoroughly cool the valve after each brazing operation of the four joints involved The wet rag around the reversing valve will eliminate conduction of heat to the valve body when brazing the line connection COMPRESSOR CHECKS WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation Extreme care must be used if it becomes necessary to work on equipment with power applied Failure to do so could result in serious injury or death Locked Rotor Voltage L R V Test Locked rotor voltage L R V is the actual voltage available at the compressor under a stalled condition Single Phase Connections Disconnect power from unit Using a voltmeter attach one lead of the meter to the run R terminal on the compressor and the other lead to the common terminal of the com pressor Restore power to unit Determine L R V Start the compressor with the volt meter attached then stop the unit Attempt to restart the compressor within a couple of seconds and immediately read the voltage on the meter The compressor under these conditions will not start and will usually kick out on overload within a few seconds since the pressures in the system will not have had
83. how the TIMER icon or SCHEDULE icon Ecl Example TIMER is turned ON SCHEDULE is turned ON 9 TIMER SCHEDULE TIMER FACTORY DEFAULT The TIMER is the default on new units The TIMER 8 function allows you to turn the unit one time ON and one time OFF daily at the times that you select For example you can command the system to turn ON at 8 15 am and to turn OFF at 1 30 pm everyday To set the timer see page 18 SCHEDULE The SCHEDULE has two options with factory pre programmed energy management settings temperature system and time settings see addendum for more information see page 17 Schedule options are 1 Residential Schedule 40 hour work week 2 Commercial Schedule 5 day business week These factory pre programmed settings can only be changed by using the WiFi FriedrichLink adaptor or with an upload via the mirco USB port with which you can create your own custom program See page 11 F C Select 1 SET POINT FAN TIMER SPEED SCHEDULE FRR132 To switch from degrees Fahrenheit to Celsius C press KA buttons simultaneously for three seconds O FAN SPEED FRR133 will flash for 5 seconds and then revert to a normal display To change from F to C press the ZN or M button within 5 seconds FAN SPEED SCHEDULE FRR134 A will flash fo
84. iagram 83 PARTS SECTION K hl amp K hl Standard Chassis Unit Exploded Diagram 84 8 K hl 8 K hl Small Chassis 2012 Parts List Number Part Description ES12N33 A ES15N33 A 5508 10 SS10N10 A SS12N10 A SS12N30 A SS14N10 A SS15N30 A YS10N10 A YS12N33 A px 62050304 CONDENSOR TI 222 r poo T TTT 51850344 CONDENSOR COIL x i i J 01002000 SPEEDNUT PUSH TYPE Cz 2 3 r T TL r i L r L T 2 T T T 51850127 EVAPORATOR COL i j j j J 2 emm L T T T T T T rem sra aco 3 3 1 3 r r t L 2 o COMPRESSOR KIT 6220011 LL j j 3 eme Fs cowmessonergaon L T Fs errieros compressore O O T G1717126_ COMPRESSOR KIT 62200115 AAA j sa jo 1 eme compresor emer mueve __ L T T T T TIT r T 3760520 CAPILLARY TUBE 1 ess jamas A T L TT TL T sess wmv _____ T r T T T T T 3760651 CAPILLARY TUBE TTT Lees 3760479 CAPILLARY TUBE AAA ATT Lx 2802202 ELECTRONIC CONTROL
85. ic power before service or installation Extreme care must be used if it becomes necessary to work on equipment with power applied Failure to do so could result in serious injury or death WARNING BURN HAZARD Certain unit components operate at temperatures hot enough to cause burns Proper safety procedures must be followed and proper protective clothing must be worn ERRE Failure to follow this warning could result in moderate to serious injury External Overloads With power off remove the leads from compressor terminals If the compressor is hot allow the overload to cool before starting check Using an ohmmeter test continuity across the terminals of the external overload If you do not have continuity this indicates that the overload is open and must be replaced Interrnal Overloads Some model compressors are eguipped with an internal overload The overload is embedded in the motor windings to sense the winding temperature and or current draw The overload is connected in series with the common motor terminal Should the internal temperature and or current draw become the contacts in the overload will open turning off the compressor The overload will automatically reset but may reguire several hours before the heat is dissipated Checking the Internal Overload 1 With no power to unit remove the leads from the compressor terminals 2 Using an ohmmeter test contin
86. ilure to do so can result in personal injury or death NOTICE FIRE HAZARD Not following the above WARNING could result in fire or electically unsafe conditions which could cause moderate or serious property damage Read understand and follow the above warning Wire Size Use ONLY wiring size recommended for single outlet branch circuit Fuse Circuit Breaker Use ONLY the correct HACR type and size fuse circuit breaker Read electrical ratings on unit s rating plate Proper circuit protection is the responsibiity of the homeowner Grounding Unit MUST be grounded from branch circuit through service cord to unit or through separate ground wire provided on permanently connected units Be sure that branch circuit or general purpose outlet is grounded Receptacle The field supplied outlet must match plug on service cord and be within reach of service cord Do NOT alter the service cord or plug Do NOT use an extension cord Refer to the table above for proper receptacle and fuse type AHAM be certain that Certification Seal accurately states the unit s cooling and Marufacurer Ce heating capacity rating the amperes and the energy efficiency ratio SGN GR ARES The consumer through the AHAM Room Air Conditioner Certification Program can D 0 LISTED HACR Heating Air Conditioning and Refrigeration WARNING Before Operating Your Unit NOTICE N WARNING 10 Electrical Shock Hazard Make
87. ilure to do so could result in serious injury METERING DEVICE Capillary Tube Systems All units are equipped with capillary tube metering devices 3 Switch the unit to the heating mode and observe the gauge readings after a few minutes running time If the system pressure is lower than normal the heating capillary is restricted Checking for restricted capillary tubes 1 Connect pressure gauges to unit 2 Startthe unit in the cooling mode If after a few minutes of operation the pressures are normal the check valve and the cooling capillary are not restricted 4 operating pressures are lower than normal in both the heating and cooling mode the cooling capillary is restricted CHECK VALVE A unique two way check valve is used on the reverse cycle heat pumps It is pressure operated and used to direct the flow of refrigerant through a single filter drier and to the proper capillary tube during either the heating or cooling cycle One way Check Valve Heat Pump Models XJ I Xx In the heating mode of operation high pressure refrigerant enters the check valve from the opposite direction closing the port liquid line to the outdoor coil The flow path of the refrigerant is then through the filter drier and heating capillary to the outdoor coil Failure of the slide in the check valve to seat properly in either mode of operation will cause flooding of the cooling coil This is due to the refrigerant bypa
88. in the system is just as bad if not worse than not enough refrigerant undercharge They both can be the source of certain compressor failures if they remain uncorrected for any period of time Quite often other problems such as low air flow across evaporator etc are misdiagnosed as refrigerant charge problems The refrigerant circuit diagnosis chart will assist you in properly diagnosing these systems An overcharged unit will at times return liquid refrigerant slugging back to the suction side of the compressor eventually causing a mechanical failure within the compressor This mechanical failure can manifest itself as valve failure bearing failure and or other mechanical failure The specific type of failure will be influenced by the amount of liquid being returned and the length of time the slugging continues Not enough refrigerant undercharge on the other hand will cause the temperature of the suction gas to increase to the point where it does not provide sufficient cooling for the compressor motor When this occurs the motor winding temperature will increase causing the motor to overheat and possibly cycle open the compressor overload protector Continued overheating of the motor windings and or cycling of the overload will eventually lead to compressor motor or overload failure Method Of Charging Repairs The acceptable method for charging the sealed system is the Weighed in Charge Method The weighed in charge meth
89. isher readily available Failure to follow this notice could result in moderate to serious property damage 1 Install Process Tubes Recover refrigerant from sealed system PROPER HANDLING OF RECOVERED REFRIGERANT ACCORDING TO EPA REGULATIONS IS REQUIRED 2 Remove solenoid coil from reversing valve coil is to be reused protect from heat while changing valve 3 Unbraze all lines from reversing valve 4 Clean all excess braze from all tubing so that they will slip into fittings on new valve 5 Remove solenoid coil from new valve 6 Protectnew valve body from heat while brazing with plastic heat sink Thermo Trap or wrap valve body with wet rag 7 Fit all lines into new valve and braze lines into new valve WARNING EXPLOSION HAZARD The use of nitrogen requires a pressure regulator Follow all safety procedures and wear protective safety clothing etc Failure to follow proper safety procedures could result in serious injury or death 8 Pressurize sealed system with a combination of R 410A and nitrogen and check for leaks using a suitable leak detector Recover refrigerant per EPA guidelines 9 Once the sealed system is leak free install solenoid coil on new valve and charge the sealed system by weighing in the proper amount and type of refrigerant as shown on rating plate Crimp the process tubes and solder the ends shut Do not leave Schrader or piercing valves in the sealed system NOTE W
90. it you can create your own custom schedule program See page 10 for more information NOTE Once you have selected the TIMER or SCHEDULE we must first set the following before turning it on 1 Set time and day 2 Set start time 3 Set stop time See timer settings on next page To Turn On the Timer or Schedule Selected SYSTEM FAN MODE FAN 9 SPEED SCHEDULE FRR139 Press the button and let go The system will operate in the mode option 1 2 or Timer you selected At the above image TIMER is selected and turned on 17 TIMER SETTINGS 1 Set and day 2 Set start time 3 Set stop time Figure 4 I a LLL _______ 00 SET TIME AND DAY To adjustthe unit s time press and hold the HOUR and the MIN buttons for three seconds Refer to Figure 4 TIMER SCHEDULE Woe FRR128 The unit s current hour displays Use the ZN or M buttons to adjust the hour To change from AM to PM continue to increment roll the display Press TIMER SET Refer to Figure 4 button to save the hour and display the unit s current minutes TIMER SCHEDULE FRR129 Use the PX M buttons to adjust the minutes The clock is now set for 11 25 AM Press TIMER SET Refer to Figure 4 button to display the unit s day setting SYSTEM SIG FAN MODE FAN TIMER SPEED SCHEDULE FRR130 Use the ZN or M buttons to adjust the day 1
91. ity becomes water and your air conditioner will use most of the water to keep the outside coil cool If there is excessive humidity there may be excess water that will drip outside This is normal operation Frosting This usually occurs because of insufficient airflow across the coils a dirty filter cool damp weather or all of these Set the SYSTEM mode to FAN ONLY J and the frost will disappear Setting the thermostat a little warmer will probably prevent the frosting from recurring Noises All air conditioners make some noise Friedrich units are designed to operate as quietly as possible An air conditioner mounted in a wall is quieter than one mounted in a window It is important to ensure that the chassis seal gasket Item 14 is properly installed refer to installation instructions Heat pumps operate differently If your unit is a Y or heat pump model there are some things that you will want to be aware of Some functions of a heat pump differ from your unit when it is used for heating 1 normal for ice to form on the outdoor coil of the heat pump Moisture in the outside air passing over the coil when very cold will form ice 2 If the outdoor temperature drops below 37 3 C your heat pump will automatically turn on the electric resistance heat When the temperature rises to 40 F 4 C the compressor will resume the heat pump operation If your unit is a 115 volt model YS10 it is designed for us
92. lectric heater until the heat pump is repaired Electric Heat Operation in Cool with Electric Heat Units When in the Heat mode with and without Fan Mode Auto Fan cycling If the indoor ambient temperature is below the Heat Demand Threshold Heat Set Point minus 1 5 F turn on electric heat If Ambient is 0 3 above the Heat Set Point turn off the electric heat System Mode Auto This mode provides automatic change over between cool and heat The auto mode runs based on the room ambient temperature vs the Demand Thresholds It is only available in Heat Cool Unit Notes There is a buffer zone between the cool and heat set points where no heating or cooling is allowed to occur It is critical that the Cool Demand Threshold be greater than the Heat Demand Threshold by a minimum of 3 while in the Auto System Mode For example if a user enters a value for the Auto Cooling Set Point that violates the minimum A 3 rule the Auto Heating Set Point will adjust accordingly Automatic Change Over Delay Cool with Heat Units The change over delay ensures that any system heating or cooling over shoot does not trigger an opposite demand cycle The change over delay lt 15 min This timer blocks the opposite demand cycle from running until the timer expires As an example if the last demand was a cool cycle and another cool cycle is requested the timer will not block the request However if the last demand cycle was a cool cycle and heat cycle
93. link is in series with the power supply and will open and interrupt the power when the temperature reaches 199 F or a short circuit occurs in the heating element Once the fuse link separates a new fuse link must be installed NOTE Always replace with the exact replacement The heater element has a high limit control This control is a bimetal thermostat mounted in the top of the heating element Should the fan motor fail or filter become clogged the high limit control will open and interrupt power to the heater before reaching an unsafe temperature condition The control is designed to open at 110 F 6 F continuity below 110 F or when it is cooled off HEATING ELEMENT Heat Pump Models The heating element for the Y model is energized by an outdoor thermistor via the electronic control board The outdoor defrost thermistor is adjusted at a predetermined temperature of approximately 30 degrees Fahrenheit and sensed for two consecutive minutes to stop the compressor and turn on the heating element TESTING THE HEATING ELEMENT WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing Failure to follow this warning could result in serious injury or death Testing of the elements can be made with an ohmmeter across the terminals after the connecting wires have been removed A cold resistance reading of approximately 14 5 ohms for the 3 3 KW heater 11 9 ohms for the 4 0 KW heater and 9
94. ll need to be cleaned up following proper procedures Install the replacement compressor A WARNING EXPLOSION HAZARD The use of nitrogen requires a pressure regulator Follow all safety procedures and wear protective safety clothing etc Failure to follow proper safety procedures result in serious injury or death Pressurize with a combination of R 410A and nitrogen and leak test all connections with an electronic or Halide leak detector Recover refrigerant and repair any leaks found Repeat Step 8 to insure no more leaks are present 9 Evacuate the system with a good vacuum pump capable of a final vacuum of 200 microns or less The system should be evacuated through both liquid line and suction line gauge ports While the unit is being evacuated seal all openings on the defective compressor Compressor manufacturers will void warranties on units received not properly sealed Do not distort the manufacturers tube connections CAUTION 10 FREEZE HAZARD Proper safety procedures must be followed and proper protective clothing must be worn when working with liquid refrigerant Failure to follow these procedures could result in minor to moderate injury Recharge the system with the correct amount of refrigerant The proper refrigerant charge will be found on the unit rating plate The use of an accurate measuring device such as a charging cylinder electronic scales or similar device is necessary
95. m though the process tubes PROPER HANDLING OF RECOVERED REFRIGERANT ACCORDING TO EPA REGULATIONS IS REQUIRED Do not use gauge manifold for this purpose if there has been a burnout You will contaminate your manifold and hoses Use a Schrader valve adapter and copper tubing for burnout failures HIGH TEMPERATURES Extreme care proper judgment and all safety procedures must be followed when testing troubleshooting handling or working around unit while in operation with high temperature components Wear protective safety aids such as gloves clothing etc Failure to do so could result in serious burn injury FIRE HAZARD The use of a torch requires extreme care and proper judgment Follow all safety recommended precautions and protect surrounding areas with fire proof materials Have a fire extinguisher readily available Failure to follow this notice could result in moderate to serious property damage After all refrigerant has been recovered disconnect suction and discharge lines from the compressor and remove compressor Be certain to have both suction and discharge process tubes open to atmosphere Carefully pour a small amount of oil from the suction stub of the defective compressor into a clean container Using an acid test kit one shot or conventional kit test the oil for acid content according to the instructions with the kit If any evidence of a burnout is found no matter how slight the system wi
96. mode REVERSING VALVE DESCRIPTION OPERATION A WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing Failure to follow this warning could result in serious injury or death The Reversing Valve controls the direction of refrigerant flow to the indoor and outdoor coils It consists of a pressure operated main valve and a pilot valve actuated by a solenoid plunger The solenoid is energized during the heating cycle only The reversing valves used in the RAC system is a 2 position 4 way valve The single tube on one side of the main valve body is the high pressure inlet to the valve from the compressor The center tube on the opposite side is connected to the low pressure suction side of the system The other two are connected to the indoor and outdoor coils Small capillary tubes connect each end of the main valve cylinder to the PILOT SOLENOID VALVE A and B ports ofthe pilot valve Athird capillary isa common return line from these ports to the suction tube on the main valve body Four way reversing valves also have a capillary tube from the compressor discharge tube to the pilot valve The piston assembly in the main valve can only be shifted by the pressure differential between the high and low sides of the system The pilot section of the valve opens and closes ports for the small capillary tubes to the main valve to cause it to shift NOTE System operating pressures must be near normal
97. nd transportation of the air conditioner to and from the Service Agency and the reinstallation charges associated with repair of the Sealed Refrigeration System All such cost will be the sole responsibility of the owner This remedy is expressly agreed to be the exclusive remedy within sixty months from the date of the original purchase APPLICABILITY AND LIMITATIONS This warranty is applicable only to units retained within the Fifty States of the U S A District of Columbia and Canada This warranty is not applicable to 1 Air filters fuses batteries and the front grille removal tool 2 Products on which the model and serial numbers have been removed 3 Products which have defects or damage which results from improper installation wiring electrical current characteristics or maintenance or caused by accident misuse or abuse fire flood alterations and or misapplication of the product and or units installed in a corrosive atmosphere default or delay in performance caused by war government restrictions or restraints strikes material shortages beyond the control of FRIEDRICH or acts of God OBTAINING WARRANTY PERFORMANCE Service will be provided by the FRIEDRICH Authorized Dealer or Service Organization in your area They are listed in the Yellow Pages assistance is required in obtaining warranty performance write to Room Air Conditioner Service Manager the Friedrich address is at the top of this warranty or email tac friedric
98. not installed Install gasket per Installation manual Downward slope of unit is too Refer to installation manual for proper steep inward installation 63 64 COOLING ONLY ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Possible Cause Possible Solution Sublimation Ensure that foam gaskets are installed in When unconditioned saturated between window panes 4 in between the outside air mixes with conditioned unit amp the sleeve Also ensure that fresh air condensation forms on the air exhaust vents on applicable models are in Water spitting cooler surfaces the closed position amp are in tact into room Follow installation instructions to ensure that D d pitch of installation i POMA iege downward pitch of installed unit is no less than i 1 4 amp no more than 3 8 CI 8 advi t f periodic cleani Restricted coil or dirty filter Ran advise customer o cleaning amp maintenance needs of entire unit Possible Cause Possible Solution Insufficient air circulation thru area I Adjust louvers for best possible air circulation to be air conditioned Excessive moisture Operate in MoneySaver position Inadequate vapor barrier in building customer structure particularly floors Possible Cause Possible Solution Defective thermistor Replace thermistor or electronic control board See sizing chart Correct as needed Chassis seal gasket not sealing Check gasket Reposi
99. nt indoor temperature is be low the heat demand threshold 1 5 below the heat set point temperature and the compressor is not locked out turn on compressor If the ambient indoor temperature is 0 25 F above the heat set point turn off the compressor Set Point gt Heat Demand Threshold 2 Electric L Heat Start Threshold A Temp Below Set Point m Heat Purnp A 5 Sec Fan e a Off Delay 30 Sec 2 3 Delay 15 Sec Heat Control Heat Pump amp Electric Heat If the compressor is locked out amp electric heat is available 1 Turn on the electric heat until the compressor is not locked out 2 After lockout turn off the electric heat wait 5 seconds then turn on the compressor If Electric Heat is Available After the Heat button is initially pressed the unit will run the electric heater first until the initial set point is satisfied Hot Start Feature After the initial start the unit will switch to Heat Pump heat and decide between Heat Pump heat and Electric heat based on the following two monitored conditions Condition 1 If the outdoor coil temperature sensor drops to 30 or less for 2 consecutive minutes the unit will switch to electric heat if available Thereafter the unit will switch back to Heat Pump heat if the outdoor coil temperature sensor rises to 45 F or greater If Electric Heat is not available out of order and the outdoor coil temperature sensor d
100. nufactured Product Line A 1 D 4 G 7 B 2 E 5 H 8 C 3 F 6 J 9 Month Manufactured A Jan D Apr G Jul K Oct B Feb E May H Aug L Nov F Jun J Sept M Dec REFRIGERATION SYSTEM PERFORMANCE DATA FUSE 60 Hertz EVAP AIR TEMP DEG CONDENSER Discharge Suction TEMP DEG COOLING PERFORMANCE DATA S08N10 A YS10N10 A S10N10 A S12N10 A S14N10 A S12N30 A S12N33 A YS12N30 A S15N30 A S15N33 A M15N10 A M18N30 A M18N34 A YM18N34 A M21N30 A M24N30 A M24N34 A YL24N35 A L22N30 A L24N30 A Super Heat Cooli Voltage oling Suction Discharge Amps Locked Rotor Charge in ety Amps OZ Amps 26 114 153 65 7 19 151 400 6 1 32 0 26 0 115 15 147 39 78 137 392 77 4 4 76 MES 135 423 100 550 300 115 S a 1 O 15 15 15 15 48 15 48 20 137 413 52 64 64 426 O 7 5 56 260 320 230208v 20 320 335 230 208v _ 15 160 320 335 230 208v _ 20 15 E 15 68 16 17 60 2 169 69 18 21 12 6 Y p 136 422 74 420 395 230 208 136 422 74 195 420 j 395 230 208 30 126 413 85 85 440 400 230 208 _ 30 94 112 m 2 2 2 2 2 2 460 400 230 208v 11 2 605 43 6 230 208 2
101. o movement replace valve add strainer to discharge tube mount valve horizontally Stop unit After pressures equalize restart with solenoid energized If valve shifts Piston cup leak reattempt with compressor running If still no shift replace valve a Cool Hot A Raise head pressure operate solenoid to o lagged pilot ubas free If still no shift replace valve a s 2 Valve will not Raise head pressure operate solenoid Cool Hot Both ports of pilot open Back seat port o Mice shift from cool Cool s 2 1 Hot did not close partially clogged port If still no shift to heat aud 2 Defective Compressor Replace compressor Not enough pressure differential at start Check unit for correct operating pressures H Warm Warm Hot TVB Hot of stroke or not enough fl ow to maintain and charge Raise head pressure If no pressure differential shift use valve with smaller port res ZEIT Starts to shift goi Wam Hor Raise head pressure operate solenoid If but does not no shift use valve with smaller ports Valve hung up at mid stroke Pumpin reversal a Raise head pressure operate solenoid ais no shift use with smaller ports Raise head pressure operate solenoid Hot Hot Hot Hot Hot Hot Both ports of pilot open If no shift replace valve Apparent Hot Cool TVB TVB Pist
102. o fan cycling mode The air conditioner has insufficient cooling capacity to match the heat gain of the room The air conditioner has insufficient heating capacity to match the heat loss of the room This may be due to an excessive heat load in the room It may also be due to an improperly sized unit This may be normal for higher efficiency EER air conditioners You may notice that the discharge air temperature of your new air conditioner may not seem as cold as you may be accustomed to from older units This does not however indicate a reduction in the cooling capacity of the unit Do not try to operate your air conditioner in the cooling mode when the outside temperature is below 60 F 16 C The unit will not cool properly and the unit may be damaged Since the fan does not circulate the room air continuously at this setting the room air does not mix as well and hot or cold spots may result Using the continuous fan setting is recommended to obtain optimum comfort levels Check the cooling capacity of your unit to ensure it is properly sized for the room in which itis installed Room air conditioners are not designed to cool multiple rooms Check the heating capacity of your unit Air conditioners are sized to meet the cooling load and heater size is then selected to meet the heating load In extreme northern climates room air conditioners may not be able to be used as a primary source of heat
103. od is applicable to all units It is the preferred method to use as it is the most accurate The weighed in method should always be used whenever a charge is removed from a unit such as for a leak repair compressor replacement or when there is no refrigerant charge left in the unit To charge by this method requires the following steps 1 Install a piercing valve to remove refrigerant from the sealedsystem Piercing valve must be removed from the system before recharging 2 Recover Refrigerant in accordance with EPA regulations WARNING BURN HAZARD Proper safety procedures must be followed 2 and proper protective clothing must be worn when working with a torch Dh Failure to follow these procedures could result in moderate or serious injury 3 Install a process tube to sealed system CAUTION FREEZE HAZARD Proper safety procedures must be followed and proper protective clothing must be worn when working with liquid refrigerant Failure to follow these procedures could result in minor to moderate injury 4 Make necessary repairs to system 5 Evacuate system to 200 microns or less 6 Weigh in refrigerant with the property quantity of R 410A refrigerant 7 Start unit and verify performance WARNING BURN HAZARD Proper safety procedures must be followed and proper protective clothing must be worn when working with a torch EAS Failure to follow these pro
104. oil are free from any obstructions Ensure that the circuit breaker s or fuse s and supply circuit wire size have been sized correctly If the unit was supplied with a power supply cord insure that it is stored properly Ensure that the entire installation is in compliance with all applicable national and local codes and ordinances having jurisdiction Secure components and accessories such as a decorative front Start the unit and check for proper operation of all components in each mode of operation Instruct the owner or operator of the units operation and the manufacturer s Routine Maintenance NOTE A log for recording the dates of maintenance and or service is recommended Present the owner or operator of the equipment with the name address and telephone number of the Authorized Friedrich Warranty Service Company in the area for future reference if necessary NOTE This is a warm weather appliance The air conditioner is designed to cool in warm weather when the outside temperature is above 60 F 15 6 and below 115 46 1 C so it won t cool a room if it is already cool outside If you want to cool a room in the spring or fall select the FAN ONLY 22 mode and set the Fresh Air Exhaust air control to Fresh Air This will bring in a supply of cooler outside air Condensation is normal Air conditioners actually pump the heat and humidity from your room to the outside Humid
105. ompressor Often a partial restriction of any type can be found by feel as there is a temperature difference from one side of the restriction to the other With a complete restriction there will be no sound at the metering device entrance An amperage check of the compressor with a partial restriction may show normal current when compared to the unit specifi cation With a complete restriction the current drawn may be considerably less than normal as the compressor is running in a deep vacuum no load Much of the area of the condenser will be relatively cool since most or all of the liquid refrigerant will be stored there The following conditions are based primarily on a system in the cooling mode Suction Pressure indoor Coll Deep Vacuum Compressor Reversing Valve Head Pressure Lower Outdoor Coll Gauges will not equalize with unit shut off Completely Restricted System Accumulator Suction Pressure Lower Indoor Coil Outdoor Coil Gauges may equalize very slowly Partially Restricted System HERMETIC COMPONENTS CHECK 44 WARNING BURN HAZARD Proper safety procedures must be followed and proper protective clothing must be worn when working with a torch 44 WARNING CUT SEVER HAZARD Be careful with the sharp edges and corners Wear protective clothing and gloves etc p Failure to follow these procedures could result in moderate or serious injury Fa
106. on needle on end of slide leaking perdus da H each k j as 1 as 2 If excessive leak replace valve Sapin neal Hot Cool Operate val times then recheck ing Hot Cool ES 99 wvyB wVB Pilot needle and piston needle leaking A 1 2 If excessive leak replace valve Hot G l Hot Cool TVB TVB Pressure differential too high Stop unit Will reverse during equalization as 1 as 2 period Recheck system Raise head pressure operate solenoid to Raise head pressure operate solenoid Hot Cool Remove valve and wash out Check on air Hot Cool BE 1 a 2 Hot TVB Dirt in bleeder hole before reinstalling no movement replace Will not shift valve Add strainer to discharge tube f festo Mount valve horizontally Med Stop unit After pressures equalize restart cool Hot Cool with solenoid deenergized If valve shifts Hot Cool as 1 as 2 Hot TVB Piston cup leak reattempt with compressor running If it still will not reverse while running replace the valve Hot Cool as 1 2 Defective pilot Replace valve Warm Cool Warm Eso Warm TVB Defective compressor Replace compressor as 1 as 2 Valve will not shift from cool to heat Hot Hot Hot ot 68 ELECTRONIC CONTROL BOARD COMPONENTS IDENTIFICATION Outdoor Coil Thermistor Blue Check here for Indoor Coil Thermistor 3 3 Volts DC Low Fan speed Green Medium Fan speed High Fan
107. or Operation in Heating Restriction For Operation In Heating Refrigerant System Reversing Valve not Reversing Valve not Low Airflow Across Restriction Fully Seated Fully Seated Indoor Coil Undercharged Overcharged Undercharged Overcharged Noncondensables air Moisture in System Defective Compressor Defective Compressor in System ELECTRICAL TROUBLESHOOTING CHART HEAT PUMP HEAT PUMP SYSTEM COOLS WHEN HEATING IS DESIRED Is Line Voltage Is the Selector Switch Present at the Solenoid Set for Heat YES Is the Solenoid Coil Good JU Replace the Solenoid Coil YES Reversing Valve Stuck Replace the Reversing Valve 67 TROUBLESHOOTING TOUCH TEST CHART TO SERVICE REVERSING VALVES NORMAL FUNCTION OF VALVE VALVE a 2 m 5 a E _ 8 5 8 25 gt 8 2 be 8s TEMPERATURE OF VALVE BODY 25 22 WARMER THAN VALVE BODY POSSIBLE CAUSES CORRECTIONS sa laal Hot Cool A MALFUNCTION OF VALVE Normal Heating Hot No voltage to coil Repair electrical circuit Check Electrical circuit and coil Defective coil Replace coil Check refrigeration charge Pressure differential too high Recheck system Deenergize solenoid raise head pressure reenergize solenoid to break dirt loose Cool Hot If unsuccessful remove valve wash Cool s 2 1 Pilot valve okay Dirt in one bleeder hole out Check on air before installing If n
108. or cord connected air conditioners To test your power supply cord 1 Plug power supply cord into a grounded 3 prong outlet 2 Press RESET See Figure 1 3 Press TEST listen for click the RESET button trips and pops out 4 Pressandrelease RESET Listen for click RESET button latches and remains in The power cord is ready for use Note in case of power failure unit will resume operation according to the last input settings Do not use the LCDI device as an ON OFF switch Failure to adhere to this precaution may cause premature equipment malfunction Once plugged in the unit will operate normally without the need to reset the LCDI device If the LCDI device fails to trip when tested or if the power supply cord is damaged it must be replaced with a new power supply cord from the manufacturer Contact our Technical Assistance Line at 800 541 6645 To expedite service please have your model number available Table 1 CIRCUIT RATING REQUIRED OR TIME DELAY WALL RECEPTACLE 5512 10 5514 10 125 5 45R SM15N10 YS10M10 SS12N30 SS15N30 SM18N30 SM21N30 290 6 15R SL22N30 SL24N30 SL28N30 ES12N33 ES15N33 250 6 20R 250 6 30R SS08N10 SS10N10 YS12N33 SL36N30 EM18N34 EL36N35 EM24N34 YM18N34 YL24N35 Figure 1 WARNING TEST BEFORE EACH USE 1 PRESS RESET BUTTON 2 PLUG LCDI INTO POWER WARNING RECEPTACLE 3 PRESS TEST BUTTON RESET BUTTON SHOULD TEST BEFORE EACH USE 1 PRESS
109. perating correctly Check the sealant around the sleeve and reseal areas as needed DECORATIVE FRONT COVER Clean the front cover when needed Use a mild detergent Wash and rinse with warm water Allow it to dry thoroughly before reinstalling it in the chassis The decorative front and the cabinet can be cleaned with warm water and a mild liquid detergent Do NOT use solvents or hydrocarbon based cleaners such as acetone naphtha gasoline benzene etc Use a damp not wet cloth when cleaning the control area to prevent water from entering the unit and possibly damaging the electronic control CLEARANCES Inspect the surrounding area inside and outside to ensure that the unit s clearances have not been compromised or altered Accumulator Outdoor Grille Compressor ON UNO b Discharge Air Fresh Air Vent SU NC EET Reversing Valve Evaporator Coil Condenser Coil Electronic Control RR ANM 2 Board DOS Qa Y 501 Sleeve Control Key Pad AR Air Intake Vents Support Bar 4 ZZ N a 4 LY b i CNN A 4 Air Intake From gt gt dl Fan Blower Motor Sides and Bottom Base P h Control Key Pad EU User Interface s 51 ROUTINE MAINTENANCE Continued Standard filter cleaning removal and installation instructions Removing filter Filter dissassembly and cleaning STEP1 Swing the door open STEP1 Slide the filter grip out from the filter as shown in Figure 3
110. r blade condenser fan blade and condenser shroud periodically yearly or bi yearly and clean of all debris lint dirt mold fungus etc Clean the blower housing area and blower wheel with an antibacterial antifungal cleaner Use a biodegradable cleaning agent and degreaser on condenser fan and condenser shroud Use warm or cold water when rinsing these items Allow all items to dry thoroughly before reinstalling them ELECTRONIC ELECTRICAL MECHANICAL Periodically at least yearly or bi yearly inspect all control components electronic electrical and mechanical as well as the power supply Use proper testing instruments voltmeter ohmmeter ammeter wattmeter etc to perform electrical tests Use an air conditioning or refrigeration thermometer to check room outdoor and coil operating temperatures BLOWER FAN MOTOR The motor is permanently lubricated 50 ROUTINE MAINTENANCE Continued NOTICE Do not drill holes in the bottom of the drain pan or the underside of the unit Not following this notice could result in damage to the unit or condensate water leaking inappropriately which could cause water damage to surrounding property SLEEVE DRAIN Inspect the sleeve and drain system periodically at least yearly or bi yearly and clean of all obstructions and debris Clean both areas with an antibacterial and antifungal cleaner Rinse both items thoroughly with water and ensure that the drain outlets are o
111. r 5 seconds and then revert to a normal display SYSTEM AUTO FAN MODE SET POINT FAN SPEED FRR135 The F icon goes away and the C icon illuminates on the normal display 15 DIM Function There are three separate display brightness levels AUTO 20 and full 100 To change the DIM setting press the Power button for three seconds SYSTEM TIMER SCHEDULE FRR192 The 1 indicates a DIM setting of Auto factory default on new units Use the ZN or M buttons to change the setting SYSTEM TIMER SCHEDULE FRR193 The 2 indicates a DIM setting of 20 Press the TIMER SET button within 15 seconds to save the setting Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display SYSTEM TIMER SCHEDULE FRR194 The 3 indicates a DIM setting of 100 full brightness Press the TIMER SET Refer to Figure 8 button within 15 seconds to save the setting Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display Alerts Check Filter When the filter needs to be cleaned or replaced the icon displays Uy AUTO FAN MODE FAN TIMER SPEED SCHEDULE FRR118 The alert can be dismissed by pressing the ES and EA for 3 Seconds Wait Icon
112. r then compresses this refrigerant raising its pressure and its heat intensity temperature The refrigerant leaves the compressor through the discharge Line as a hot High pressure gas vapor The refrigerant enters the condenser coil where it gives up some of its heat The condenser fan moving air across the coil s finned surface facilitates the transfer of heat from the refrigerant to the relatively cooler outdoor air When a sufficient quantity of heat has been removed from the refrigerant gas vapor the refrigerant will condense i e change to a liquid Once the refrigerant has been condensed changed to a liquid it is cooled even further by the air that continues to flow across the condenser coil The RAC design determines at exactly what point in the condenser the change of state i e gas to a liquid takes place all cases however the refrigerant must be totally condensed changed to a Liquid before leaving the condenser coil A k Suction Line mm Metering Device e Refrigerant oo Strainer Coil O Refrigerant Drier The refrigerant leaves the condenser Coil through the liquid line as a warm high pressure liquid It next will pass through the refrigerant drier if so equipped It is the function of the drier to trap any moisture present in the system contaminants and large particulate matter The liquid refrigerant next enters the metering device The meterin
113. re reinstalling Use caution as the coil surface can be sharp TO REMOVE WASH AND REPLACE FILTER Lower front panel Use handle on filter to flex filter up and out of retainer Remove filter from unit Clean filter monthly or more frequently if needed Refer to accessories section for filter options 49 COILS AND BASE PAN The indoor coil evaporator coil the outdoor coil condenser coil and base pan should be inspected periodically yearly or bi yearly and cleaned of all debris lint dirt leaves paper etc Clean the coils and base pan with a soft brush and compressed air or vacuum If using a pressure washer be careful not to bend the aluminium fin pack Use a sweeping up and down motion in the direction of the vertical aluminum fin pack when pressure cleaning coils Cover all electrical components to protect them from water or spray Allow the unit to dry thoroughly before reinstalling it in the sleeve NOTE Do not use a caustic coil cleaning agent on coils or base pan Use a biodegradable cleaning agent and degreaser The use of harsh cleaning materials may lead to deterioration of the aluminum fins or the coil end plates NOTE t is extremely important to insure that none of the electrical and or electronic parts of the unit get wet Be sure to cover all electrical components to protect them from water or spray BLOWER WHEEL HOUSING CONDENSER FAN SHROUD Inspect the indoor blower and its housing evaporato
114. rops to 30 F or less for 2 consecutive minutes then the compressor and fan will turn off Thereafter the unit will switch back to Heat Pump heat if the outdoor coil temperature rises to 45 F or greater 26 Heat Pump With Electric Heat Operation Continued Condition 2 If the A delta set point temperature minus the ambient indoor temperature is greater than 5 then the unit will switch to electric heat if available The unit will continue to operate with electric heat until the heat demand is satisfied Note that the electric heat switches on after the A temp passes 5 F and the heat pump switches off Also note that the electric heat will run until the heat demand is satisfied When another heat demand cycle is initiated the heat pump will run unless the A temp is greater than the electric heat threshold Automatic Emergency Heat If the sealed system fails with a bad reversing valve or anything that causes the indoor coil to get colder than the indoor ambient temperature 1 If the indoor coil thermistor senses a 5 degree temperature drop as compared to the ambient temperature thermistor and this lasts up to 5 minutes the control board will switch the unit to electric heat and continue heating with it 2 At this point error code 15 is generated heat pump failure Indoor coil temperature lower than indoor ambient temperature for 5 or more degrees for 5 consecutive minutes Note It is Ok to continue to use the unit with the e
115. s tem tem or IF or IR Com ma id Comma id COOL Storage FAM Only Storage System COOL System Fan Only Mode Mode Fan ALTO Fan Continuous Modes Continuous Modes Speed Speed 1 2 3 4 Triangle 1 2 3 4 Triangle Set Point BO to 99 Set Point 16 3 C M Timer OM Timer o uu Figure 2 oystem Mode Heat Cool Units COOL HEAT m Satem Key Satem Key Sytem Key Sytem key Pressed or IR Pressed IR Pressed or IR Pressed IR Comma id Com Com maid Comma id AUTO Storage COOL Storage HEAT Storage FAH Only Storage Fan AUTO Fan ALTO Fan AUTO Fan Continuous Mades Continuous Mode Continuous Modes Continuous Mode Fan AUTO Fan AUTO Fan AUTO Fan Speed Speed Speed Speed 12 34 Triangle 1 2 3 4 Triangle 1 2 3 4 Triangle 1 2 3 4 Triangle Set Point 60 to 99 F Set Point Bu to 99 F Set Point B to 99 F Set Point 16to 37 E 160 37 16to 37 C M Timer a Timer M Schedule OFF Schedule Schedule OFF chedule System AUTO System COOL System Heat System Fan Only Made Made Made Made 23 ELECTRONIC CONTROL SEQUENCE OF OPERATION Compressor and Reversing Valve Control Active Mode Compressor Reversing Valve State Cooling De Energized Heat Heat Pump Heat Electric pO Fan Only o O oo The Reversing valve stays in the last state until a call for heat or cooling see figure below Compressor Operation amn LT l
116. s Hand Held Remote Has an operating range of up to 25 ft The infrared remote control signal must have a clear path to transmit the command to the air conditioning unit The remote signal has some ability to bounce off of walls and furniture similar to a television remote control The diagram below shows the typical operating range of the control in a standard room with 8 ft high ceilings TOP VIEW FRR080 Changing Temperature from Fahrenheit To Celsius or Reverse Be within 25 of unit with the remote control Press the SYSTEM and FAN MODE buttons at the same time and hold for 3 seconds The display will show the temperature in Celcius Do the same to reverse temperature to F Fahrenheit The remote control operation overrides manual settings on unit 21 Remote Control Operation Continued Figure 12 4 FRIEDRICH Figure 13 FAN ONLY SYSTEM MODE AUTO AUTO FAN lt aD CONTINUOUS AUTO TI SCHEDULE ICON Front Panel System Mode Sequence TIMER SCHEDULE OFF There are two system modes of operation One for a cool only unit see figure 1 and one for a heat cool unit see figure 2 oystem parameters for each system mode are saved when exiting a system mode and retrieved when entering a new system mode Figure 1 oystem Mode Cool Only Unit
117. s set point on the control panel and the actual room temperature Let me explain Say for example you re working in your garage and you open the big door for several minutes The system will sense a wide difference between the set point and the actual room temperature When this occurs the system fan speed increases to HIGH for a period of time The fan speed decreases in step as the temperature difference decreases When the room temperature matches the system s set point fan speed returns to the lowest setting and if the fan mode is on AUTO FAN the fan will stop 14 UP EN and DOWN BA arrows Pressing either P or BA button changes the system s set point desired room temperature These buttons are also used for setting the Timer and other programming SYSTEM M 1 SET POINT FAN TIMER FRR100 F AUTO FAN NN K O SET POINT TIMER SCHEDULE FRR101 One press equals 1 degree of change Holding the button down for more than 0 6 seconds starts the fast increment decrement change of the set point TIMER SCHEDULE BUTTON TIMER The button has two main uses 1 Used to preselect a TIMER or SCHEDULE pre selection instructions please see 17 2 Used to turn on or activate the pre selected TIMER 8 or SCHEDULE 3 To turn on your pre selction press the button once and let go The display at bottom right will s
118. s use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for leaks flushing etc Make sure to follow all safety precautions and to use proper protective safety aids such as gloves safety glasses clothing etc Failure to follow proper safety procedures and or these warnings can result in serious injury or death MECHANICAL HAZARDS Extreme care proper judgment and all safety procedures must be followed when testing troubleshooting handling or working around unit with moving and or rotating parts Be careful when handling and working around exposed edges and corners of the sleeve chassis and other unit components especially the sharp fins of the indoor and outdoor coils Use proper and adequate protective aids such as gloves clothing safety glasses etc Failure to follow proper safety procedures and or these warnings can result in serious injury or death PROPERTY DAMAGE HAZARDS FIRE DAMAGE HAZARDS Read the Installation Operation Manual for the air conditioning unit prior to operating Use air conditioner on a single dedicated circuit within the specified amperage rating Connect to a properly grounded outlet only Do not remove ground prong of plug Do not cut or modify the power supply cord Do not use extension cords with the unit Be extremely careful when using acetylene torch and protect surrounding property Failure to follow these instructions can result in fire and minor to
119. serious property damage WATER DAMAGE HAZARDS Improper installation maintenance or servicing of the air conditioner unit can result in water damage to personal items or property Insure that the unit has a sufficient pitch to the outside to allow water to drain from the unit Do not drill holes in the bottom of the drain pan or the underside of the unit Failure to follow these instructions can result in damage to the unit and or minor to serious property damage INTRODUCTION This service manual is designed to be used in conjunction with the installation and operation manuals provided with each air conditioning system This service manual was written to assist the professional RAC Room Air Conditioner service technician to quickly and accurately diagnose and repair malfunctions This manual will deal with subjects in a general nature COMPONENTS IDENTIFICATION Accumulator Outdoor Grille Compressor NO Discharge Air Fresh Air Vent Nb E b lt lt b VA Shroud brace Condense Fan Shroud Reversing Valve Evaporator Coil Condenser Coil Electronic Control N We Board ALP ih Sleeve Control Key Pad 21 27 Ful Air Intake Vents A Support Bar ES Y lt lt sail Blower Wheel a 2 E aiit Fan Blade Air Intake From Y Fan Blower Motor Sides and Bottom 4 Control Key DR User Interface S cu I
120. servicing Failure to follow this warning could result in serious injury or death Remove the decorative front cover see page 29 Disconnect discharge sensor plug red Disconnect the User Interface plug white Remove the 3 screws indicated below Pull control board and mount plate out and disconnect the following connectors from it Power capacitor thermistors fan reversing valve and heater Remove the hex screw holding the control board to its mount plate Pull out the control board see figure below 30 31 Airflow Selection and Adjustment Air flow direction adjustment The airflow path may be adjusted to distribute air independently from the left or right side of the discharge opening Each of the banks of louvers can be directed left right up or down in order to achieve the most optimum airflow positioning To adjust airflow direction grab the lever in the center of the louver bank and move it in the direction that you would like the air to be directed Please note that it is normal that airflow may be stronger out of one side of the louvers than the other Fresh air and exhaust control Your air conditioner has the ability to bring fresh air into the room or exhaust stale air out of the room The control slide is found on the upper part of the unit See Figure TO BRING IN FRESH AIR Move the leverto the Fresh Air position which allows outside air to enter the room This is useful in fall
121. sible Solution Replace fuse reset breaker If repeats check Fuse blown or circuit tripped fuse or breaker size Check for shorts in unit wiring amp components Power cord not plugged in Plug it in Unit does not run System button in OFF position Set correctly Inoperative system button or open Test for continuity Check alarms Correct electronic control board as needed Loose or disconnected wiring Check wiring amp connections Reconnect per control board or other components wiring diagram Possible Cause Possible Solution Dirty filter Clean as recommended in Owner s Manual Check for dirty or obstructed coil Use Restricted airflow pressure wash or biodegradable cleaning agent to clean Evaporator coil Inoperative thermistor Check alarms Replace as necessary freezes up Short of refrigerant De ice coil amp check for leak Inoperative fan motor Test fan motor amp replace if inoperative Partially restricted capillary tube De ice coil Replace capillary tube Possible Cause Possible Solution Unit undersized Test cooling performance amp Excessive heat load AA replace with larger unit if needed See sizing chart 12 2 4 Check for partially iced amp check Restriction in line Compressor runs temperature split across coil continually amp does Refrigerant leak Find leak and repair not cycle off Check operation of t stat Replace if contacts Compressor relay contacts stuck remain closed Remote wall T st
122. sor During the cooling cycle you can listen carefully at the exit of the metering device into the evaporator an intermittent hissing and gurgling sound indicates a low refrigerant Reversing Accumulator Suction Pressure Indoor Coil Much Lower charge Intermittent frosting and thawing of the evaporator Compressor Running A A A Quieter than Normal is another indication of a low charge however frosting Amps Lower and thawing can also be caused by insufficient air over the evaporator Undercharged System Checks for an undercharged system can be made at the compressor If the compressor seems quieter than normal it is an indication of a low refrigerant charge Overcharged Refrigerant Systems of the evaporator will not be encountered because the refrigerant will boil later if at all Gauges connected to Compressor amps wil be near normal or higher system will usually have higher head pressure depending Noncondensables can also cause these symptoms upon amount of over charge Suction pressure should be To confirm remove some of the charge if conditions slightly higher improve system may be overcharged If conditions don t improve Noncondensables are indicated Whenever an overcharged system is indicated always make sure that the problem is not caused by air flow problems Improper air flow over the evaporator coil may indicate some of the same symptoms as an over charged Accumulator system Suction Pre
123. speed Max Fan speed Heat Cool units along with Cool models 5128 and 5136 only have 3 fan speeds Reversing Valve 7123 4000107 VG Indoor Ambient Air Thermistor Check here for 3 3 Volts DC NAT o gt E Ed Heater Relay a Transformer User Interface Connector 42 lt 3 Se Discharge Air Thermistor Check here for 3 3 Volts DC Heater Relay 115 or 230 VAC Voltage Configuration See next page for details Compressor Relay LN Fuse L1 6 3 Amps 250VAC When checking the 3 3 Volts DC for the thermistors if there is no voltage or wrong voltage replace control board For thermistor testing see page 57 for resistance values 69 FRIEDRICH E Control Service Kit Configuration Instructions Electronic Control Gen 2 For Use with Kuhl cool only models and Kuhl cool and heat models N models Example 5508 10 Notice Please read these instructions completely before attempting configuration WARNING Refer to the table below to determine the appropriate Electronic Control Kit part number by unit model number prefix Failure to install the correct Electronic Control Kit for the given unit model may result in failure of the product and or a potentially unsafe operating condition FRIEDRICH ELECTRONIC CONTROL KIT PART FRIEDRICH MODEL PREFIX 62601010 SS SM 6260101 62601012 YS YL does not include YS10 see below
124. ssing the heating or cooling capillary tube and entering the liquid line COOLING MODE In the cooling mode of operation liquid refrigerant from condenser liquid line enters the cooling check valve forcing the heating check valve shut The liquid refrigerant is directed into the liquid dryer after which the refrigerant NOTE The slide check inside the valve is made of teflon Should it become necessary to replace the check valve place a wet cloth around the valve to prevent overheating during the brazing operation is metered through cooling capillary tubes to evaporator Note liquid refrigerant will also be directed through the heating capillary tubes in a continuous loop during the cooling mode CHECK VALVE OPERATION In the cooling mode of operation high pressure liquid enters the check valve forcing the slide to close the opposite port liquid line to the indoor coil Refer to refrigerant flow chart This directs the refrigerant through the filter drier and cooling capillary tube to the indoor coil HEATING MODE In the heating mode of operation liquid refrigerant from the indoor coil enters the heating check valve forcing the cooling check valve shut The liquid refrigerant is directed into the liquid dryer after which the refrigerant is metered through the heating capillary tubes to outdoor coils Note liquid refrigerant will also be directed through the cooling capillary tubes in a continuous loop during the heating
125. ssure Noticeably High An overcharge can cause compressor to fail since it would slugged with liquid refrigerant Refrigerant The charge for any system is critical When the compressor is noisy suspect an overcharge when you are sure that the air quantity over the evaporator coil is correct Icing 40 Restricted Refrigerant System Troubleshooting a restricted refrigerant system can be difficult The following procedures are the more common problems and solutions to these problems There are two types of refrigerant restrictions Partial restrictions and complete restrictions A partial restriction allows some of the refrigerant to circulate through the system With a complete restriction there is no circulation of refrigerant in the system Restricted refrigerant systems display the same symptoms as a low charge condition When the unit is shut off the gauges may equalize very slowly Gauges connected to a completely restricted system will run in a deep vacuum When the unit is shut off the gauges will not equalize at all A quick check for either condition begins at the evaporator With a partial restriction there may be gurgling sounds at the metering device entrance to the evaporator The evaporator in a partial restriction could be partially frosted or have an ice ball close to the entrance of the metering device Frost may continue on the suction line back to the c
126. sure your electrical receptacle has the same configuration as your air conditioner s plug If different consult a Licensed Electrician Do notuse plug adapters Do notuse an extension cord Do not remove ground prong Always plug into a grounded 3 prong oulet Failure to follow these instructions can result in death fire or electrical shock Make sure the wiring is adeguate for your unit If you have fuses they should be ofthe time delay type Before you install or relocate this unit be sure that the amperage rating of the circuit breaker or time delay fuse does not exceed the amp rating listed in Table 1 DO NOT use an extension cord The cord provided will carry the proper amount of electrical power to the unit an extension cord may not Make sure that the receptacle is compatible with the air conditioner cord plug provided Proper grounding must be maintained at all times Two prong receptacles must be replaced with a grounded receptacle by a certified electrician The grounded receptacle should meet all national and local codes and ordinances You must use the three prong plug furnished with the air conditioner Under no circumstances should you remove the ground prong from the plug Test the power cord All Friedrich room air conditioners are shipped from the factory with a Leakage Current Detection Interrupter LCDI equipped power cord The LCDI device on the end of the cord meets the UL and NEC requirements f
127. t no action needed Heat pump e On model YS10N10 do not operate below 37 F 0 C only models Temperature below 32 F 0 C If outdoor air temp is higher than freezing check reversing valve electric coil outdoor thermistor refrigerant circuits etc For proper operation correct as needed Problem Possible Cause Possible Solution Check if operating properly Instruct customer on proper use of control Dirty filter Clean as recommended in Owner s Manual Check heat rise across coil If unit operates efficiently check if insulation can be added to attic or walls If insulation is adequate recommend additional unit or larger one adequately Outdoor coil thermistor or electronic control Check alarms error codes Replace thermistor board defective or electronic control board mE Check for adequate fan air across heater Check Heater hi limit control cycling on amp off for open hi limit control Shorted or open supplementary heater Do ohmmeter check Incorrect wiring Check applicable wiring diagram Exhaust or fresh air door open Unit undersized Does not heat HEAT PUMP ROOM AIR CONDITIONERS TROUBLE SHOOTING TIPS Possible Cause Po Refer to applicable wiring diagram Defective solenoid coil Check for continuity of coil Block condenser coil amp switch unit to cooling Allow pressure to build up in system then switch to heating If valve fails to shift replace valve
128. t button has popped out Reset the circuit breaker or replace the fuse as applicable If the problem continues contact a licensed electrician There has been a local power The unit will resume normal operation once failure power has been restored Other appliances are being used on The unit requires a dedicated outlet circuit not the same circuit shared with other appliances A KARSI debe Do NOT use an extension cord with this or any n extension cord is being used giber eondilisne Replace with a circuit breaker or time delay The circuit breaker or time delay fuse of the proper rating See Electrical fuse is not of the proper rating Rating Tables on pg 6 for the proper circuit breaker fuse rating for your unit If the problem continues contact a licensed electrician The circuit breaker has tripped or the supply circuit fuse has blown Unit Trips Circuit Breaker or Blows Fuses The LCDI power cord can trip Reset button pops out due to disturbances on your power supply line Press and release RESET listen for click Reset button latches and remains in to resume normal operation CDI Power Cord Trips Reset Button Pops Out Once the problem has been determined and corrected press and release RESET listen for click Reset button latches and remains in to resume normal operation Electrical overload overheating or cord pinching can trip Reset button pops out the LCDI power cord N
129. time to equalize Voltage should be at or above minimum voltage of 197 VAC as specified on the rating plate If less than minimum check for cause of inadequate power supply i e incorrect wire size loose electrical connections etc Amperage L R A Test The running amperage of the compressor is the most important of these readings A running amperage higher than that indicated in the performance data indicates that a problem exists mechanically or electrically Single Phase Running and L R A Test NOTE Consult the specification and performance section for running amperage The L R A can also be found on the rating plate Select the proper amperage scale and clamp the meter probe around the wire to the C terminal of the compressor Turn on the unit and read the running amperage on the meter If the compressor does not start the reading will indicate the locked rotor amperage L R A Overloads The compressor is equipped with either an external or internal overload which senses both motor amperage and winding temperature High motor temperature or amperage heats the overload causing it to open breaking the common circuit within the compressor 45 Heat generated within the compressor shell usually due to recycling of the motor is slow to dissipate It may take anywhere from a few minutes to several hours for the overload to reset Checking the Overloads WARNING ELECTRIC SHOCK HAZARD Turn off electr
130. tion or replace as absent causting unit to short cycle needed Gl amp advi t f iodic cl i Restricted coil or dirty filter ean advise customer o ue cleaning amp maintenance needs of entire unit Possible Cause Possible Solution Defective indoor ambient thermistor Check alarms Replace thermistor or electronic or electronic control board control board Unit short cycles Prolonged off cycles Defective remote wall t stat Replace t stat Possible Cause Possible Solution evaporar arain Repair clean replace as required obstructed P q Detach shroud from amp coil Clean 4 Water in compressor area Outside water remove old sealer Reseal reinstall amp check leaks ii Use pressure wash biodegradable cleaning agent to clean Fan blade slinger ring improperly Adjust fan blade to 1 2 of condenser coil fin positioned pack 65 HEAT COOL ONLY ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Problem Possible Cause Possible Solution Bad indoor ambient thermistor Check error codes Replace as needed Room temperature Fan speed too low set at higher fan speed uneven Heating cycle Opened door windows etc Close doors windows etc ATSF room air sampling feature disabled Enable ATSF Problem Possible Cause Possible Solution Bad outdoor coil thermistor Replace thermistor Unit will not defrost On heat pumps with electric hea
131. top and bottom pins of the male connector see picture below There should be 5VDC 4 If there is no voltage replace the electronic control board 6 If the connections and the wire harness are good replace the User Interface User Interface Control Board Micro USB port for KWIFI adaptor and offline scheduler See page 11 User Interface Connector Check here for 5VDC If no voltage replace board If there is check connections and cable If ok replace User Interface 35 REFRIGERATION SEQUENCE OF OPERATION A good understanding of the basic operation of the refrigeration system is essential for the service technician Without this understanding accurate troubleshooting of refrigeration system problems will be more difficult and time consuming if not in some cases entirely impossible The refrigeration system uses four basic principles laws in its operation they are as follows 1 Heat always flows from a warmer body to a cooler body 2 Heat must be added to or removed from a substance before a change in state can occur 3 Flow is always from a higher pressure area to a lower pressure area 4 The temperature at which a liquid or gas changes state is dependent upon the pressure The refrigeration cycle begins at the compressor Starting the compressor creates a low pressure in the suction line which draws refrigerant gas vapor into the compressor The compresso
132. uity between terminals C S and C R If no continuity the compressor overload is open and the compressor must be replaced Single Phase Resistance Test WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation Extreme care must be used if it becomes necessary to work on equipment with power applied Failure to do so could result in serious injury or death Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale R x 1 Touch the leads of the ohmmeter from terminals common to start C to S Next touch the leads of the ohmmeter from terminals common to run C to R Add values C to S and C to R together and check resistance from start to run terminals S to R Resistance S to R should equal the total of C to S and C to In a single phase PSC compressor motor the highest value will be from the start to the run connections S to R The next highest resistance is from the start to the common connections S to The lowest resistance is from the run to common C to R Before replacing a compressor check to be sure it is defective GROUND TEST Use an ohmmeter set on its highest scale Touch one lead to the compressor body clean point of contact as a good connection is a must and the other probe in turn to each compressor terminal If a reading is obtained the compressor is groun
133. ver an entryway MODEL DC 2 DRAIN KIT Part No 01900 235 can be installed to drain excess condensation to an alternate location Carhon Filter Kits The kits vary depending on the chassis size small medium large Each kit contains three 3 filters WCFS Carbon filter kit for small chassis models WCFM Carbon filter kit for medium chassis models WCFL Carbon filter kit for large chassis models FriedrichLink KWIFI FriedrichLink Adaptor Accessory for wireless control and additional programming options Window Installation Kits Standard in Kuhl Models without Heat KWIKS For all ES and YS models KWIKM For all EM and YM models KWIKL For all EL and YL models See www friedrich com for additional accessories for your unit How to Check the Diagnostic Codes See codes chart on next page SYSTEM lt SET POINT Em FAN TIMER SPEED SCHEDULE To check the active system errors press the Ed amp FN keys for 3 sec TIMER SCHEDULE An E will appear in the display Use the PY or PY keys to scroll through any system errors Only active errors will be shown The display error mode will time out in 15 seconds with no key activity FAN MODE FAN TIMER SPEED SCHEDULE Bie Press the PN key to view the next error Press the SELECT key to exit SYSTEM AUTO F
134. y chatter Fan Only System Mode The fan is turned on and runs at the specified manually set speed Only the Fan is turned on Cool or Heat operation are off This is different than FAN MODE CONTINUOUS where the fan is on with the cool or heat operation Fan Only Rules 1 If the SYSTEM FAN ONLY MODE is selected the Auto fan mode is disabled and the fan mode is forced to continuous In addition the auto fan speed is disabled If the user presses the fan speed key the menu will skip over the auto selection The set point temperature display is off 2 Any fan speed may be manually selected during Fan Only Mode 28 Fan Operation Front Panel Mode Heat Cool Auto Fan Only Models starting with SS SM have 4 speeds Models with SL and all Kuhl have 3 speeds Speed Selection AUTO Operation but never turns Off Uses cool set point or heat set point vs ambient Continuous temperature When there is no demand operate at the On On lowest available speed Turns Turns Turns Turns On or On or On or On or AUTO operation turns On or Off with Off with Off with Off with Off with heat or cool demand heat or heat or heat or heat or Uses cool set point or heat cool cool cool cool set point vs ambient demand demand demand demand temperature Mode Fan ICON Detail The system may have a 3 or 4 speed fan The Fan Speed ICON will Display as per the table below Medium High AUTO E EI E EE

Friedrich SS10N10* User's Manual

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