Friedrich WS16B30A-C Air Conditioner User Manual
Contents
1. SWITCH LOGIC SWITCH POSITION LEGEND ANTICIPATOR RESISTOR HIR HEATER MONEY SAVER ROCKER SWITCH HL A AEren TIU COMPRESSOR THERMAL FUSE FAN MOTOR GROUND LEAD OVERLOAD PROTECTOR COMBINATION TERMINAL SYSTEM SWITCH PLASTIC INSULATOR INDOOR THERMOSTAT PART REV HIGH PRESSURE SWITCH 617 581 15 04 2 5 OFF LOW COOL MEDIUM COOL HIGH COOL HIGH HEAT MEDIUM HEAT LOW HEAT FAN ONLY 4 xo xolo 6 6 2 24 WIRING DIAGRAM MODELS WY10B33A B WY13B33A B TE WIRING DIAGRAM RED OR PINK SYSTEM SWITCH REV VALVE COMPRESSOR WHITE OR YELLOW YELLOW RED OR PINK PURPLE BLack MOTOR BLUE PURPLE RED WHITE OR YELLOW BROWN THERMOSTAT HARNESS RED RED BLUE TSIAT OVERLOAD PROTECTOR HEATER ORANGE ORANGE YELLOW YELLOW SMOOTH OR BLACK CONDUCTOR SUPPLY CORD RED YELLOW RIBBED OR WHITE CONDUCTOR BLUE TO GROUNDING SCREW MEDIUM OVLD2. 100 r 1 1 1 1 1 1 1 1 1 1 1 1 1 SWITCH LOGIC CLOSED OPEN L SWITCH POSITION o OFF LOW COOL MEDIUM COOL HIGH COOL HIGH HEAT MEDIUM HEAT LOW HEAT xjoojobolloo P lt gt lt lt e lt lt lt FAN ONLY ANTICIPATOR RESISTOR MONEY SAVER ROCKER SWITCH CAPACITOR COMPRESSOR FAN MOTOR OVERLOAD PROTECTOR SYSTEM SWITCH INDOOR THERMOSTAT HEATER HEATER LIMIT THERMAL FUSE GROUND LEAD COMBINATION TERMINAL PLASTIC INSULATOR PART NO 617 581 22 23 WIRING DIAGRAM MODELS WE16B33A B WIRING DIAGRAM COMPRESSOR URPLE RED OR PINK SYSTEM SWITCH COMPRESSOR WIRE HARNESS OVERLOAD PROTECTOR BLACK BLUE OR PURPLE FAN RED WHITE OR YELLOW MOTOR BROWN THERMOSTAT YELLUW gd SMOOTH OR BLACK CONDUCTOR RIBBED OR WHITE CONDUCTOR ORANGE CAPACITOR YELLOW HEATER SCHEMATIC MEDIUM 1 1 1 1 1 1 1 1 1
3. E3 FROST PROBE OPEN Normal operation is allowed Ohm frost probe Replace probe if ohm value not read If ohm value present replace board E4 FROST PROBE SHORT Normal operation allowed Replace probe E5 INDOOR PROBE OPEN Control assumes indoor ambient temperature is 90 degree F and unit will operate Ohm indoor probe Replace probe if ohm value not read E6 INDOOR PROBE SHORT Control assumes ambient temperature is 90 degree F and unit will operate Replace probe NOTE All Error Code displays for Frost amp Indoor Probe will allow unit to operate Unit may or will ice up if faulty components not replaced Frost Probe Sensor Disables compressor at 35 degrees F 3 degrees F Indoor Probe Sensor Control range is 60 degrees F to 90 degrees F 2 degrees F Indoor temperature will be displayed by pressing XQ WS Units The Fan Speed button and the Temp Up button The indoor temperature will be displayed for 10 seconds The display will change back to the Set Point temperature by pressing any key button except for the On Off button The indoor temperature can be viewed in all modes including test mode Keep Alive The electronic control has a memory to retain all functions and status as set up by the user in the event of a power failure Once power is restored to the unit there is a two second delay before the fan comes on and approximately three minutes delay before the compressor is activated providing th
4. HIGH 8 B SWITCH LOGIC SWITCH POSITION CLOSED OPEN LEGEND MONEY SAVER HTR HEATER CAPACITOR HL HEATER LIMIT COMPRESSOR THERMAL FUSE TF OVERLOAD PROTECTOR I GROUND LEAD _ COMBINATION TERMINAL REVERSING VALVE INDOOR THERMOSTAT O PLASTIC INSULATOR OUTDOOR THERMOSTAT PART NO REV HIGH PRESSURE SWITCH 617 581 02 gt 2 m s OFF LOW COOL MEDIUM COOL HIGH COOL HIGH HEAT MEDIUM HEAT LOW HEAT FAN ONLY 5353219 gt lxxx olololo eR 25 WS WE amp WY SERIES CHASSIS PARTS x 2 Zoo GEO S5 wos For Heat amp Cool Electro Mechanical Control Box and Controls 26 WALLMASTER PARTS 2007 DESCRIPTION 1 PARTNO nsv 239 CODE ELECTRICAL PARTS 1 ELECTRONIC BOARD 61921198 1 ELECTRONIC BOARD 61921199 REMOTE CONTROL 61826606 1 1 THERMOSTAT 25043302 1 2 THERMOSTAT DEF 61350314 3 OVERLOAD 6 46507 1 3 OVERLOAD 61764519 Jif J j l 3 OVERLOAD 61764528 j 3 OVERLOAD 61764554 Jif 1 190 3 OVERLOAD 61764555
5. 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 gt o A Inspectthe indoor blower housing evaporator 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 Periodically at least yearly or bi yearly inspect all control components both 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 Use a sling psychrometer to measure wet bulb temperatures indoors and outdoor
6. H and M S AR and 5 6 Med Heat Position between terminals C and 1 C2 and 4 and M S AR and 5 7 Lo Cool Position between terminals C and 1 C2 and 4 LO and M S AR and 5 8 Fan Only Position between terminals L1 and 2 Figure 8 System Control Switch Heat Pump amp Electric Heat Models NOTE Units will operate in constant fan in the cooling mode and auto fan in the heating mode REFRIGERATION SYSTEM SEQUENCE OF OPERATION A good understanding of the basic operation of the refrigera tion 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
7. Manufactured V VPAK A Jan D Apr G Jul K Oct H Split B Feb H Aug L Nov C Mar F Jun J Sept M Dec PERFORMANCE WIPIM 1319H 9joH 5 I w eu nau 9 2 wb E 9T 490 91 6 apising 10153 3 unum 11 0 uoisuajx3 unu 150 082 ce 06 06 ste ST whe 91 10 1 92 42 sisseyg 9199 5 OSM pow SUOISUAWIG 9 811 Lov 2S 1 68E1 soueieaddy 19110 89 79 92619114 802 082 1002 1090 ASZI 9514 110 4992919 3uney uone ejsu 00007 00 0 00121 00521 OTAM ETIM OTIM 7068915 68615 08015 0 8 5 018075 VOTS80SM SJOQUINN YEESETAM LOT 062 6 001 001 128 198 0762 9 6 0 81 9 80 00 008 0019 0086 00101 the heating performance will be satisfactory Change over the compressor stops and the electric heat starts the unit will achieve the following ratings 11000 9100 BTU h Tel 062 ev 88 06 0965 0968 LVVOSI 80 1 98 1 68 81 802 0 2 0016 00011 0005 T 0085T VEEg9T3M 082 EE L9 68 0S62 0SSE 91 6LEUTOVT 9 59 805 062 0016 0001 0001 0021 8668 3 201 092 07 0965 0968 LVVOSI 966 5001 05 0
8. check Obstricted condenser coil biodegradable cleaning Fan Adjust fan blade to 1 2 of condenser coil positioned Repair clean or replace as required HEAT COOL ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Problem Possible Cause Action Room temperature uneven Heating cycle Problem Disconnect power to unit Remove resistor Heat anticipator resistor shorted from t stat bulb block Plus in unit amp allow to on applicable models operate Feel resistor for heat If not heat replace resistor Wide differential partial loss of t stat bulb charge Replace t stat amp check Refer to appropriate wiring diagram Resistor Incorrect wiring is energized during ON cycle of compressor or fan Unit will not defrost Problem Possible Cause Action Incorrect wiring Refer to appropriate wiring diagram Defrost control timer motor not Check for voltage at TM amp TM1 on timer If advancing applicable models no voltage replace control If outside coil temperature is 25 F or below amp preselected time limit has elapsed replace defrost control Defrost control out of calibration applicable models If contacts remain closed between terminals 2 amp 3 of the defrost control after preselected time interval has passed replace control Defrost control bulb removed from Reinstall 4 be assured that good bulb to coil or not making good coil contact contact is made P
9. coil B Electrical components Thermostat Used to maintain the specified room side comfort level System switch Used to regulate the operation of the fan motor the compressor or to turn the unit off For troubleshooting refer to the wiring diagrams and schematics in the back of this service manual Capacitor Reduces line current and steadies the voltage supply while greatly improving the torque characteristics of the fan motor and compressor motor MoneySaver switch When engaged it sends the power supply to the fan motor through the thermostat which allows for a cycle fan operation Fan Motor Dual shafted fan motor operates the indoor blower wheel and the condenser fan blade simultaneously Solenoid Used to energize the reversing valve on all heat pump units Heating element Electric resistance heater available in 3 3 4 0 or 5 2 kW on select TwinTemp models Heat anticipator Used to provide better thermostat and room air temperature control C Hermetic components Compressor Motorized device used to compress refrigerant through the sealed system Reversing valve A four way switching device used on all heat pump models to change the flow of refrigerant to permit heating or cooling Check valve A pressure operated device used to direct the flow of refrigerant to the proper capillary tube during either the heating or cooling cycle Capillary tube A cylindrical meter device used to evenly distribute the flow of re
10. 11 fif 3 ovERLOAD 61764556 J Jaf 90 4 _ 6905 1 j j 150 4 61080569 4 69055 J j j 4 CAPACITOR 61080540 11 1 j 4 69056 4 600037 1 Jif 1 1 150 5 SUPPLYCORD 65097 1 1 1 J j J 220 5 SUPPLYCORD 60500326 11 111 1 1 220 5 SUPPLY CORD 60500325 _ 1 J 220 6 SWITCH SYS 8 POS 600704 1 1 1 1 1 130 7 etsi j j 10 7 _ __ 6187141 11 1 1 7 FANMOTOR 61871472 111 J j j 110 7 61871473 1 11 10 7 FANMOTOR 61871474 j 1 0 8 HEATER 62101210 j 1 fi 210 9 SOLENOID and REVERSING VALVE 25022032 1 1 240 XU NN _ Lees pese Ies wees LEE LL meme mmm WS08B10A C WS14B10A C REFRIGERATION SYSTEM PARTS WY13B33A B REVERSING VALVE and SOLENOID 25022032 13 EVAPORATOR COIL 6210330 13 EVAPORATOR COIL 62103308 1 13 EVAPORATOR COIL 6210335 14 CONDENSER
11. 160360331 1 1 1 1 1 fa 1 2 PANEL WEATHERINNER 96160201 1 1 1 1 1 3 GRILLE LOUVERED 6160301 1 1 1 1 1 fa 1 4 PANEL WEATHER OUTER 61603303 1 1 1 1 WS amp WY SERIES SLEEVE PARTS 29 rriedrich Friedrich Air Conditioning Co Post Office Box 1540 San Antonio Texas 78295 1540 4200 Pan Am Expressway San Antonio Texas 78218 5212 210 357 4400 FAX 210 357 4480 www friedrich com Printed in the U S A 07 3 07
12. 7 806 050 0016 00011 00001 0000T VEEgOT3M ei 062 ev 89 06 G0 T 9G 1 68 81 805 062 000ST 008ST 1058915 601 082 t L9 68 6 9 59 802 0 2 0002 1 00S2T 8068615 4 092 001 001 966 0001 04 07 805 062 00001 00001 YOESOTSM el G62 EE 46 41 SIT 00561 5 201 6 7 746 13 SII 00001 VOTSO0TSM 6 T 991 89 SIT 0008 018805 501 19N sduy 09 Jo 3813 uonejno1r 4 91115101 33 oney 819 3 wooy 61 96 5 9v W39 70 sduy ojoy deag 984249 201 sduiy 100 sduiy 134002585 1491819313 sduiy SULIH SHeM 009 981 19 1 101215 3011005 qne y Jedns 534055344 9NI1VH3d0 sduiy 8 007 duo dway 101915 98161991 SHOA 37930 931 835830802 4 018 Ayioedey Qno 3 37930 9 31 uolvuodvM u nig yoede 8 007 1900 AV due 98164991 37930 431 uv YOLVUOd WAS 9pow VEEgETAM VEEg9T3M gEEgET3M VEEg0T3M VOEg9TSM GOES TSM VOEg0TSM VOTSVISM VOTSOTSM 018805 4 Rating Conditions 80 degrees F room air temp amp 50 relative humidity with 95 degree F outside air temp amp 40 relat
13. COIL 62103400 Jif J 1 14 CONDENSER COIL 60941 J lifl 1 14 CONDENSER COIL 61042 14 CONDENSER COIL 62103500 1 1 1 14 CONDENSER COIL 64091 1 j _ CAPILLARY TUBE 03760513 Jif _ CAPILLARY 03760547 1 1 1 _ CAPILLARY 013900 J J lif 1 CAPILLARY TUBE 0370550 11 CAPILLARY TUBE 03760531 J CAPLLARYTUBE 03760548 1 j Part Not Shown ERR Elo WE13B33B B 510 600 600 600 600 600 600 400 400 400 400 410 410 471 471 471 A 27 WALLMASTER PARTS 2007 115V 23 DESCRIPTION PART NO CHASSIS PARTS SHROUD CONDENSER FAN BLADE COND BLOWER WHEEL EVAP BLOWER FRONT BLOWER FRONT SCROLL BASE PAN BASE PAN BASE PAN ASLY BELLOWS DRAIN VALVE DRAIN PAN ASSY GROMMET comp BOLT comp COUNTER WEIGHT RETAINER CUP FAN MTR GROMMET FAN MTR NUT FAN MTR PANEL CTRL MOUNT BRACKET CONRTOL ESCUTCHEON HTG COOL KNOBS CRTL HOLDER AIR FILTER HOLDER THERMOSTAT HOLDER THERMISTER FILTER AIR FRONT COMPLETE FRAME HOOD 47 GRILLE INTAKE GR
14. D EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGE FOR BREACH OF ANY EXPRESSED OR IMPLIED WARRANTY 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 FRIEDRICH prior to repairs being made 10 04 ROUTINE MAINTENANCE NOTE Units are to be inspected and serviced by qualified service personnel only Routine maintenance is required annually or semi annually depending upon annual usage 1 Clean the unit air intake filter least every 250 to 300 fan hours of operation when the unit s indicator light is on if so equipped Clean the filters with a mild detergent in warm water and allow to dry thoroughly before reinstalling 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
15. DELS WS16B30A C COMPRESSOR TERMINAL ORIENTATION MAY VARY REFER_TO MARKINGS ON COMPRESSOR COMPRESSOR OVERLOAD PROTECTOR COMPRESSOR WIRE HARNESS ELECTRONIC CONTROL CAPACITOR WIRING DIAGRAM OR BROWN SUPPLY CORD SMOOTH CONDUCTOR GREEN YELLOW BLU BLACK RIBBED CONDUCTOR OR BLUE MOTOR WIRE HARNESS SCHEMATIC L1 7 00 5 oo HPS OVLD ELECTRONIC oa X CLOSED SWITCH Locic X 2 08 NEUTRAL 115 V LEGEND SWITCH POSITION CIRCUIT COOL MED COOL LOW COOL CAPACITOR COMPRESSOR FAN MOTOR OVERLOAD PROTECTOR HIGH PRESSURE SWITCH Q INSULATED TERMINAL e COMBINATION TERMINAL li GROUND LEAD PART NO 617 581 20 WIRING DIAGRAM MODELS WE10B33A B WE13B33B B WIRING DIAGRAM URPLE RED OR PINK SYSTEM SWITCH COMPRESSOR COMPRESSOR WIRE HARNESS THERMOSTAT SUPPLY CORD BLACK BLUE OR PURPLE FAN SMOOTH OR BLACK CONDUCTOR YELLOW RED WHITE OR YELLOW MOTOR RIBBED OR WHITE CONDUCTOR CAPACITOR BROWN ORANGE YELLOW HEATER MEDIUM HIGH OVLD 1 1 1 1 1 1 1 1 1
16. ILLE EXHAUST END CAP GRILLE WEATHER SEAL GASKET 61578101 1 1 1 1 HARDWARE SCREWS 60846020 1 1 1 1 1 1 1 GASKET CHASSIS ___ 61717301 1 1 1 1 1 1 1 1 i 1 780 ___ aog 1 11 1 1 1 1 1 fi 1 1 1 99 OPTIONAL ACCESSORIES START KIT emos3 1 3 3 3 31 T3 L3 L3 TEL E31 160 55 SLEEVE ONLY 61603611 31 1 1 3 3 1 31 13 CET L3 GRILLE STAMPED 61603011__ 1_ 1 1 a 1 1111 11 Part Not Shown 62102000 62101500 60610604 62100600 62100601 62102100 62100914 62100915 61606219 60179903 62101901 61028900 91400400 61715800 60640600 60640500 91003000 62100002 62100802 62101107 61911605 60865900 61900500 61925001 60865811 61607005 62103205 1 61612705 1 61612805 1 N eene 22 1 5 281 d HE D Bee eer oe ala es cl 202230 Slee ole als Sale NININININ aolo o o 5 6 o o o 1 5 5 o 2 5 28 WS WE WY SERIES SLEEVE PARTS DESCRIPTION PARTNO 1 SLEEVEASSEMBLY 96
17. LE CAUSES CORRECTIONS Normal Cooling Normal Heating MALFUNCTION OF VALVE Valve will not shift from cool to heat Valve will not shift from cool to heat Starts to shift but does not complete reversal Apparent leap in heating Will not shift from heat to cool 14 Check Electrical circuit and coil No voltage to coil Repair electrical circuit Defective coil Replace coil Check refrigeration charge Low charge Repair leak recharge system Pressure differential too high Recheck system Pilot valve okay Dirt in one bleeder hole Deenergize solenoid raise head pressure reenergize solenoid to break dirt loose If unsuccessful remove valve wash out Check on air before installing If no movement replace valve add strainer to discharge tube mount valve horizontally Piston cup leak Clogged pilot tubes Stop unit After pressures equalize restart with solenoid energized If valve shifts reattempt with compressor running If still no shift replace valve Raise head pressure operate solenoid to free If still no shift replace valve Both ports of pilot open Back seat port did not close Raise head pressure operate solenoid to free partially clogged port If still no shift replace valve Defective Compressor Not enough pressure differential at start of stroke or not enough flow to maintain pressure different
18. RU THE WALL AIR CONDITIONERS LIMITED WARRANTY FIRST YEAR ANY PART 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 and 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 expres
19. aintenance needs of entire unit Possible Cause Action Excessive moisture Problem Insufficient air circulation thru area do E Adjust louvers for best possible air circulation to be air conditioned Operate n MoneySaver poston Inadequate vapor barrier in building structure particularly Advise customer floors T stat short cycles Problem Possible Cause Action T stat differential too narrow Replace t stat Plenum gasket not sealing allowing discharge air to short cycle t stat Restricted coil or dirty filter Clean amp advise customer of periodic cleaning amp maintenance needs of entire unit Possible Cause Action Check gasket Reposition or replace as needed Prolonged off cycles automatic operation Problem Anticipator resistor wire disconnected at t stat or system Refer to appropriate wiring diagram switch Disconnect plus from outlet Remove resistor from bracket Insert plug amp depress COOL amp FAN AUTOMATIC buttons Place t stat to warmest setting Feel resistor for temperature If no heat replace resistor Partial loss of charge in t stat bulb Replace t stat causing a wide differential Possible Cause Action Anticipator resistor shorted or open Outside water leaks Evaporator drain pan cracked or obstructed Detach shroud from amp coil Clean amp remove old sealer Reseal reinstall amp
20. at the mode was set for cooling and the set point temperature has not been met in the room SYSTEM CONTROL SWITCH WE amp WY Models An eight position switch is used to regulate the operation of the fan motor compressor and electric heater The unit can be operated in cooling or heating mode with the compressor or electric heater on and the fan motor operating on low medium or high speed The fan motor can also be operated independently on medium speed See switch section as indicated on decorative control panel in Figure 7 Figure 7 System Control Panel rredrich Fan Only Off Low Low Heat Cool Med Med Heat Cool High High Heat Cool 0 Allow 3 min between restarts WallMaster 10 SYSTEM CONTROL SWITCH TEST Disconnect leads from control switch Turn control to posi tion being tested see Figure 8 There must be continuity as follows 1 Position no continuity between terminals 2 Lo Cool Position between terminals C and 3 C2 and 2 LO and M S AR and 5 3 Med Cool Position between terminals and 3 C2 and 2 and M S AR and 5 4 Hi Cool Position between terminals C and 3 C2 and 2 and M S AR and 5 5 Hi Heat Position between terminals C and 1 C2 and 4
21. ding pres sure of 200 microns or less NOTE This process can be speeded up by use of heat lamps or by breaking the vacuum with refrigerant or dry nitrogen at 5 000 microns Pressure system to 5 PSIG and leave in system a minimum of 10 minutes Release refriger ant and proceed with evacuation of a pressure of 200 microns or less Break vacuum by charging system from the high side with the correct amount of refrigerant specified This will prevent boiling the oil out of the crankcase NOTE If the entire charge will not enter the high side allow the remainder to enter the low side in small increments while operating the unit Restart unit several times after allowing pressures to stabilize Pinch off process tubes cut and solder the ends Remove pinch off tool and leak check the process tube ends SPECIAL PROCEDURE IN THE CASE OF MOTOR COMPRESSOR BURNOUT 1 2 Recover all refrigerant and oil from the system Remove compressor capillary tube and filter drier from the system Flush evaporator condenser and all connecting tubing with dry nitrogen or equivalent to remove all contamination from system Inspect suction and discharge line for carbon deposits Remove and clean if necessary Reassemble the system including new drier strainer and capillary tube Proceed with processing as outlined under hermetic component replacement ROTARY COMPRESSOR SPECIAL TROUBLESHOOTING AND SERVICE Basically troubleshooting and
22. ecification sheet for correct insufficient temperature rise Deenergize 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 WIRING DIAGRAM MODELS WS08B10A C WS10B10A C WS14B10A C WS10B30A C WS13B30C COMPRESSOR ELECTRONIC CONTROL COMPRESSOR WIRING DIAGRAM ORIENTATION MAY VARY REFER TO MARKINGS ON COMPRESSOR mawsronues eb OVERLOAD PROTECTOR COMPRESSOR WIRE HARNESS SUPPLY CORD SMOOTH CONDUCTOR GREEN YELLUW GREEN DR CAPACITOR RED on RIBBED CONDUCTOR OR WHITE SCHEMATIC NEUTRAL 115 L1 HIGH MEDIUM OV LD LOW E ls OVL 5 EN ELECTRONIC CONTROL CAP CLOSE O OPEN SWITCH POSITION CIRCUIT 3 SWITCH LOGIC X CAPACITOR INSULATED TERMINAL COMPRESSOR FAN MOTOR COMBINATION TERMINAL OVERLOAD PROTECTOR GROUND LEAD OFF 0 COOL X MED COOL LOW COOL PART NO 617 581 21 21 22 WIRING DIAGRAM MO
23. er 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 unit s 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 The low pressure suction created by the compressor causes the refrige
24. frigerant to the heat exchangers coils 8 SYSTEM CONTROL PANEL WS Models Figure 6 System Control Panel rredrich 5 ic Power gt Cool may Mode Money Saver Fan Only IW Clock Timer Set i on off Hour f J gt Stop Time Temp Hour WallMasier TESTING THE ELECTRONIC CONTROL CHECKING ROOM TEMPERATURE 1 Check the room temperature at the electronic control pad by pressing at the same time the FAN SPEED button and the temperature UP button on XQ amp WS models The indoor temperature will display for 10 seconds Indoor temperature can be viewed in all modes including the TEST mode The display can be changed back to SET temperature by pressing any key except the ON OFF button or after 10seconds has elapsed ACTIVATING TEST MODE Activate test mode by pressing at the same time the MODE button and the temperature DOWN button on XQ amp WS models LEDs for Hour Start and Stop will blink 1bps while Test Mode is active Test Mode has duration of 90 minutes Test Mode can be activated under any conditions including Off Test Mode is cancelled by pressing the On Off button unplugging the unit or when the 90 minutes is timed out All settings revert to the factory default settings of Cool 75 degrees F Timer and Set Hour features are nonfunctional Test Mode overrides the three minute lockout all delays for compre
25. g agent to clean Inoperative t stat Test for shorted t stat or stuck contacts Short of refrigerant De ice coil amp check for leak Inoperative fan motor Test fan motor amp replace if inoperative De ice coil Check temp differential delta T Partially restricted capillary tube across coil Touch test coil return bends for same temp Test for low running current Possible Cause Action Compressor runs continually amp does not cycle off Problem Unit undersized Test cooling performance amp replace with larger unit if needed TOES Check for partially iced coil amp check Restriction in line temperature split across coil Check for oil at silver soldered connections Refrigerant leak Check for partially iced coil Check split across coil Check for low running amperage Tistatconiacte Stk Check operation of t stat Replace if contacts remain closed T stat incorrectly wired Refer to appropriate wiring diagram Possible Cause Action Excessive heat load T stat does not turn unit off Disconnect power to unit Remove cover T stat contacts stuck of t stat amp check if contacts are stuck If so replace t stat T stat set at coldest point Turn to higher temp setting to see if unit cycles off ncorrect wiring Refer to appropriate wiring diagrams Unit undersized for area to be cooled Refer to industry standard sizing chart Problem Possible Cause Action Compressor runs for sho
26. ial Replace compressor Check unit for correct operating pressures and charge Raise head pressure If no shift use valve with smaller port Body damage Replace valve Both ports of pilot open Raise head pressure operate solenoid If no shift use valve with smaller ports Body damage Replace valve Valve hung up at mid stroke Pumping volume of compressor not sufficient to maintain reversal Raise head pressure operate solenoid If no shift use valve with smaller ports Both ports of pilot open Piston needle on end of slide leaking Raise head pressure operate solenoid If no shift replace valve Operate valve several times then recheck If excessive leak replace valve Pilot needle and piston needle leaking Pressure differential too high Operate valve several times then recheck If excessive leak replace valve Stop unit Will reverse during equalization period Recheck system Clogged pilot tube Raise head pressure operate solenoid to free dirt If still no shift replace valve Dirt in bleeder hole Raise head pressure operate solenoid Remove valve and wash out Check on air before reinstalling if no movement replace valve Add strainer to discharge tube Mount valve horizontally Piston cup leak Stop unit After pressures equalize restart with solenoid deenergized If valve shifts reattempt with compressor running If it still will
27. ive humidity Calculate the heat loss of the space to be heated As long as the heat loss does not exceed the resistance heating capacity rating of the unit from heat pump operation to resistance operation on models indicated is automatic at a preset outside ambient temperature of approximately 35 F If condensate disposal is desired an optional drain kit is available DEFROST CONTROL Initiated at 20 F outdoor coil temperature and terminated at 43 F outdoor coil temperature During defrost then operates with the fan to maintain indoor comfort Below 43 F the unit remains in electric heat mode During electric heat mode 16 0 14 7 amps and 3550 2950 watts DEFROST DRAIN Drain automatically opens at approximately 50 F in outdoor base pan for defrost condensate disposal ELECTRICAL DATA Wire Size Use ONLY wiring size recommended for single outlet branch circuit Fuse Circuit Use ONLY type and size fuse or VAN C AUTI ON Breaker circuit breaker indicated on unit s rating plate Proper current protection to the unit ELECTRIC SHOCK HAZARD SIG Turn off electric power before service or installation Grounding Unit MUST be grounded from branch All electrical connections and wiring MUST be circuit through service cord to unit or installed by a qualified electrician and conform to the through separate ground wire provided on National Electrical Code and all local codes which perma
28. nently connected units Be sure that have jurisdiction an or general purpose outlet is Failure to do so can result in property damage personal injury and or death 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 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 C the amperes and the energy efficiency ratio FUNCTIONAL COMPONENTS A Mechanical components Bellows condensate valve Temperature sensitive valve that opens up to drain off condensate water when the outside temperature falls below 40 F and closes when the outside temperature reaches 58 F Plenum assembly Diffuser with directional louvers used to direct the conditioned airflow Blower wheel Attaches to the indoor side of the fan motor shaft and is used for distributing unconditioned room side air though the heat exchanger and delivering conditioned air into the room Slinger fan blade Attaches to the outdoor side of the fan motor shaft and is used to move outside air through the condenser coil while slinging condensate water out of the base pan and onto the condenser coil thus lowering the temperature and pressures within the
29. ng nitrogen through refrigeration tubing during all brazing processes HERMETIC COMPONENT REPLACEMENT The following procedure applies when replacing com ponents in the sealed refrigeration circuit or repairing refrigerant leaks Compressor condenser evaporator capillary tube refrigerant leaks etc 1 Recover the refrigerant from the system at the pro cess tube located on the high side of the system by installing a line tap on the process tube Apply gauge from process tube to EPA approved gauges from process tube to EPA approved recovery system Recover CFCs in system to at least 5 Cut the process tube below pinch off on the suction side of the compressor Connect the line from the nitrogen tank to the suction process tube Drift dry nitrogen through the system and unsolder the more distant connection first Filter drier high side process tube etc Replace inoperative component and always install a new filter drier Drift dry nitrogen through the system when making these connections Pressurize system to 30 PSIG with proper refrigerant and boost refrigerant pressure to 150 PSIG with dry nitrogen Leaktest complete system with electric halogen leak detector correcting any leaks found Reduce the system to zero gauge pressure Connect vacuum pump to high side and low side of system with deep vacuum hoses or copper tubing Do not use regular hoses 10 12 Evacuate system to maximum absolute hol
30. not reverse while running replace the valve Defective pilot Replace valve Defective compressor Replace compressor COOLING ONLY ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Problem Possible Cause Action Check voltage at compressor 115V amp 230V Low voltage units will operate at 10 voltage variance T stat not set cold enough or Set t stat to coldest position Test t stat amp re inoperative place if inoperative Compressor hums but cuts off on Hard start compressor Direct test compressor B10 overload If compressor starts add starting components Compressor Open or shorted compressor does not run Check for continuity amp resistance windings Open overload Test overload protector amp replace if inoperative Open capacitor Test capacitor amp replace if inoperative Test for continuity all positions Replace if Inoperative system switch inoperative Refer to appropriate wiring diagrams to check Broken loose or incorrect wiring wiring Problem Possible Cause Action Inoperative system switch Test switch amp replace 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 switch open Test switch amp replace if inoperative Test fan motor amp replace if inoperative be sure internal overload has had time to
31. ossible Cause Action Defrost control contacts stuck Does not heat adequately 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 T stat should close at 38 F Check continuity of control If temperature is below 38F replace control Exhaust or fresh air door open Unit undersized Outdoor t stat open applicable models Heater hi limit control cycling on amp Check for adequate fan air across heater yoing Check control for open at 160 F amp close at 150 F Shorted supplementary heater Ohmmeter check approx 32 35 ohms Check applicable wiring diagram 19 Possible Cause Potion O 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 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 Switch unit several times from heating to Cooling adequate cooling Check temperature rise across but heating coil Refer to sp
32. rant 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 Refrigerant System Components Suction Line ii Discharge 1 Evaporator _ _ Coil SA NS N Compressor 7 Condenser Coil Metering Device Refrigerant Drier Liquid SEALED REFRIGERATION SYSTEM REPAIRS IMPORTANT ANY SEALED SYSTEM REPAIRS TO COOL ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER ALSO ANY SEALED SYSTEM REPAIRS TO HEAT PUMP MODELS REQUIRE THE INSTALLATION OF A SUCTION LINE DRIER SEALED REFRIGERATION SYSTEM REPAIRS EQUIPMENT REQUIRED 1 2 3 4 e Voltmeter Ammeter Ohmmeter Vacuum Pump capable of 200 microns or less vacuum Acetylene Welder Electronic Halogen Leak Detector G E Type H 6 or equivalent Accurate refrigerant charge measuring device such as a Balance Scales 1 2 oz accuracy b Charging Board 1 2 oz accuracy High Pressure Gauge 0 400 Ibs Low Pressure Gauge 30 150 16 Vacuum Gauge 0 1000 microns EQUIPMENT MUST BE CAPABLE OF 1 12 Evacuation from both the high side and low side of the system simultaneously Introducing refrigerant charge into high side of the system Accurately weighing the refrigerant charge actually introduced into the system Facilities for flowi
33. re not missing Improperly mounted or loose Check assembly amp parts for looseness cabinet parts rubbing amp rattling Poorly installed Water leaks into the room Possible Cause Action Evaporator drain pan overflowing Clean obstructed drain trough Condensation forming on base pan Evaporator drain pan broken or cracked Reseal or replace Poor installation resulting in rain Check installation instructions Reseal as entering the room required Condensation on discharge grille Clean the dirty evaporator coil Use pressure louvers wash or biodegradable cleaning agent to clean Chassis gasket not installed Install gasket per Installation manual Downward slope of unit is too Refer to installation manual for proper steep installation 17 18 Problem Possible Cause Action Water spitting into room Problem Sublimation Ensure that foam gaskets are installed in When unconditioned saturated between window panes amp 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 cooler surfaces the closed position amp are in tact ae Follow installation instructions to ensure that Downward pitch of installation is foo stee downward pitch of installed unit is no less than P 1 4 amp no more than 3 8 Restricted coil or dirty filter Clean amp advise customer of periodic cleaning amp m
34. refrigerant gas vapor into the compressor The compressor 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 In all cases however the refrigerant must be totally condensed changed to a liquid before leaving the condenser coil 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 metering device is a capillary tube The purpose of the metering device is to met
35. reset Problem Possible Cause Action Undersized unit Refer to industry standard sizing chart Set to coldest position Test t stat amp replace if T stat open or inoperative necessary Dirty filter Clean as recommended in Owner s Manual Dirty or restricted condenser or Use pressure wash or biodegradable cleaning Does cool evaporator coil agent to clean only cools slightly Adjust discharge louvers Use high fan speed Fresh air or exhaust air door open Close doors Instruct customer on use of this on applicable models feature Low capacity undercharge Check for leak amp make repair Check amperage draw against nameplate If p pumping propery not conclusive make pressure test 15 16 Problem Possible Cause Action Unit does not run Problem 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 System switch in OFF position Set switch correctly Inoperative system switch Test for continuity in each switch position Loose or disconnected wiring at Check wiring amp connections Reconnect per switch or other components wiring diagram Evaporator coil freezes up Problem Possible Cause Action Dirty filter Clean as recommended in Owner s Manual Check for dirty or obstructed coil Use Restricted airflow pressure wash or biodegradable cleanin
36. rriedrich Service amp Parts Manual WallMaster Thru the Wall WS08B10A C WS10B10A C WS14B10A C WS10B30A C WS13B30B C WS16B30A C WE10B33A B WE13B33B B WE16B33A B WY10B33A B WY13B33A B WM Svc Prts 07 3 07 5 Waly 3 Routine Maintenance 4 Unit Identification aaa a 5 Performance inneren 6 LL ELM 7 Functional Component Definitions 8 Electronic itemm 9 R tar OS 10 Refrigeration Sequence of Operation 11 Sealed Refrigeration 12 13 Refrigerant Charging 13 General sinn nsns 14 20 Wiring 21 25 Pans 26 IRA D cL 27 29 rriedrich Friedrich Air Conditioning Company P O Box 1540 San Antonio TX 78295 210 357 4400 www friedrich com WALLMASTER TH
37. rt periods only Cycles on overload Problem Overload inoperative Opens too Check operation of unit Replace overload if soon system operation is satisfactory Allow a minimum of 2 minutes to allow pressures to equalize before attempting to restart Instruct customer of waiting period Compressor restarted before system pressures equalized Check voltage with unit operating Check for other appliances on circuit Air conditioner should be in separate circuit for proper voltage amp fused separately Refer to appropriate wiring diagram Shorted or incorrect capacitor Check by substituting a known good capacitor of correct rating Restricted or low air flow through Check for proper fan speed or blocked condenser coil condenser Compressor running abnormally Check for kinked discharge line or restricted hot condenser Check amperage Low or fluctuating voltage Possible Cause Action T stat does not turn unit on Problem Place jumper across t stat terminals to check if unit operates If unit operates replace t stat Loose or broken parts in t stat Check as above Refer to appropriate wiring diagram Loss of charge in t stat bulb Possible Cause Action Noisy operation Problem Refer to Installation Manual for proper installation Fan blade striking chassis Reposition adjust motor mount Check that compressor grommets have not Compressor vibrating deteriorated Check that compressor mounting parts a
38. s Inspect the surrounding area inside and outside to ensure that the units clearances have not been compromised or altered 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 operating correctly Check the sealant around the sleeve and reseal areas as needed 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 FRIEDRICH ROOM MODEL NUMBER CODE WS 08 B 1 0 B 1st DIGIT FUNCTION _ O W Thru The Wall WallMaster Series 2nd DIGIT TYPE S Straight Cool E Electric Heat Y Heat Pump 3rd amp 4th DIGITS APPROXIMATE BTU HR Cooling Heating BTU HR capacity listed in Specifications Performance Data Section 5th DIGIT ALPHABETICAL MODIFIER 6th DIGIT VOLTAGE 1 115 Volts 3 230 208 Volts 7th DIGIT 0 Straight Cool amp Heat Pump Models ELECTRIC HEAT MODELS 3 3 KW Heat Strip Nominal 8th DIGIT Major Change RAC SERIAL NUMBER IDENTIFICATION GUIDE Serial Number Decade Manufactured 00001 L 0 C 3 F 6 Production Run Number A 1 D 4 G 7 B 2 E 5 H 8 Year Manufactured Product Line A 1 D 4 G 7 2 5 8 3 F 6 J 9 E EAC Month
39. servicing rotary compres Sors is the same as on the reciprocating compressor with only a few exceptions 1 Because of the spinning motion of the rotary the mounts are critical If vibration is present check the mounts carefully The electrical terminals on the rotary are in a differ ent order than the reciprocating compressors The terminal markings are on the cover gasket Use your wiring diagram to insure correct connections REFRIGERANT CHARGE 1 The refrigerant charge is extremely critical Mea sure charge carefully as exact as possible to the nameplate charge The correct method for charging the rotary is to introduce liquid refrigerant into the high side of the system with the unit off Then start compressor and enter the balance of the charge gas only into the low side The introduction of liquid into the low side without the use of a capillary tube will cause damage to the discharge valve of the rotary compressor NOTE inoperative compressors returned to Friedrich must have all lines properly plugged with the plugs from the replacement compressor 13 TROUBLESHOOTING TOUCH TEST CHART TO SERVICE REVERSING VALVES VALVE OPERATING CONDITION DISCHARGE TUBE from Compressor SUCTION TUBE to Compressor Tube to INSIDE Tube to OUTSIDE COIL LEFT Pilot Capillary Tube RIGHT Pilot Capillary Tube NOTES TEMPERATURE OF VALVE BODY WARMER THAN VALVE BODY N POSSIB
40. sly 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 or fuses 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 If assistance is required in obtaining warranty performance write to Room Air Conditioner Service Manager Friedrich Air Conditioning Co P O Box 1540 San Antonio TX 78295 1540 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 AN
41. ssor and fan motor start speed change and no delay when switching modes Test Mode default settings are ON Money Saver 60 degrees F and High fan speed Activating Error Code Mode Submode of Test Mode Unit must be in Test Mode to enter Error Code Mode 1 Activate Error Code Mode by pressing the TIMER ON OFF button on amp WS models LED for the TIMER ON OFF will flash 1bps while Error Code Mode is active Pressing the button will display 00 Consecutive presses will scroll through all error codes logged Press the TEMP HR button to see the reverse order of all error codes logged When the end of logged error codes is reached the temperature set point will appear IMPORTANT Error Codes are cleared from the log by exiting from Error Code Mode To exit on amp WS models press Timer Off button Or unplug unit to exit Error Code Mode Plug unit in after 5 seconds to resume normal operation of unit ERROR CODE LISTINGS E1 SHORT CYCLE SITUATION Defined as compressor powered on before the three minute time delay ten times in one hour Investigate and correct short cycling problem E2 KEYBOARD STUCK ERROR If key button s are pressed continuously for twenty seconds or more If MODE key is stuck unit will default to cool Exit Error Code Mode to see if error E2 is no longer displayed and unit is functioning Replace board if E2 still displays after exiting Error Code Mode
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