Home

Friedrich R410A User's Manual

1. In this mode the thermostat will not turn on the heating or cooling devices gt x Note The indoor fan can be turned on manually in every operating mode by pressing the FAN right button The word FAN shows on the display and the fan icon appears when the fan operates HeatMode J n this mode the thermostat controls the heating system When the heat outputs 1 E the flame icon amp apprears on the display 58 p Note For heat pumps there is a four minute delay for your compressor to HEAT restart after it has turned off To bypass the compressor time delay go to OFF mode for 5 seconds Cool Mode In this mode the thermostat controls the cooling system When the cooling 201 j outputs the snowflake icon on the display 19 x Note There is a four minute delay for your compressor to restart after it has turned off To bypass the compressor time delay go to OFF mode 5 gt seconds Set Point Adjustment Heat Set Point Use the SYS button to select Heat Mode Press the up or down button to view the 2 current heat set point larger on the display When the large set point is displayed Be the HEAT icon will blink The up or down buttons be used to adjust the set cl point After 5 seconds of inactivity the screen will display the room temperature um um the HEAT i ill
2. 23 25 EINE sf 3 33 33 0 98 os 09 058 087 039 280 E 0 55 NEM 864 9 93 4s 43 0 51 ST 091 209 8184 nr 1326 Eo 0 51 6 180 49 0 51 9000 49 z E UN 0 55 9072 63 69 85 31 _ 4 _120 o5 09 1267 TU 13440 12000 WATTS 914 928 996 1006 1018 10 n AMES 42 42 45 46 46 540 049 066 8 05 069 091 1584 15000 1530 670 47 28 099 _79 65 800 33 33 370 37 05 091 _10620 Ens 05 EN am De ope WATTS KS D 4 0 91 062 120 55 55 Lost ost 0 _ 08 0 91 15705 Sf 15120 10230 0 45 LATIS 18 E 157 ERN 28 5 88 6 70 79 79 os 104 0 66 087 0 a os 051 o5 RATING POINT ARI 310 380 1512 11835 CO 230V Extended Cooling Performance OUTDOOR DRY BULB TEMP DEGREES F AT 40 R H INDOOR WET BULB TEMP DEGREES F AT 80 F D B 72 67 62 72 67 72 o 72 67 62 72 67 WATS 522 531 536 569 575 582 640 o 640 692 693 75 75 758 AMPS 23 23 24 25 25 25 280 28 3 3 33 33 33 Eee os om ow fos we ww em ow oss wr o we osr BTUn ___ 10584 10
3. RT6 thermostat is configurable for different systems The configuration directly affects the outputs Use the output chart to correctly configure and wire the thermostat to your system Configuration Mode The configuration mode is used to set the RT6 to match your heating cooling system The RT6 functions with heat pump air conditioning or electric heat systems x Note Thermostat comes configured for 1 stage heat 1 stage cooling for use with all heat cool and single stage heat pump models For Friedrich PTHP models follow the instructions below to configure the thermostat for two stage heat pump operation using the O terminal To configure the RT6 perform the following steps 1 Verify the RT6 is in the OFF mode mE Press the SYS left button until off mode displays F N gt 2 Remove the cover of the thermostat by gently pulling near one of the corners at the top of the thermostat Sg 3 Press the CONFIG button for 1 second while the RT6 is in OFF mode CONFIG Press the up or down button to change settings within each screen p Up button a Down button Press the right button to advance to the next screen x Note Pressing the left button will return you to the previous screen Left Right button button To exit configuration mode press the CONFIG switch for 1 second 45 46 Configuration Mode Settings The setup screens for Configuration Mode are as follows 1 S
4. Suction Line Evaporator a Coil Metering Device em Refrigerant __ Strainer 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 driertotrap any moisture presentinthe 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 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 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
5. 1 F 0 5 System configurations 2 stage heat 1 stage cool heat pump electric Timing Anti short Cycle 4 minutes bypass anti short cycle delay by returning to OFF mode for 5 seconds Backlight Operation 10 seconds Terminations R C GL GH O B Y W Important Safety Information WARNING Always turn off power at the main power supply before installing cleaning or removing thermostat This thermostat is for 24 VAC applications only do not use on voltages over 30 VAC All wiring must conform to local and national electrical and building codes Do not use air conditioning when the outdoor temperature is below 50 degrees this can damage your A C system and cause personal injuries Use this thermostat only as described in this manual Package Contents Tools Required Package includes RT6 thermostat on base thermostat cover wiring labels screws and wall anchors Installation Operation and Application Guide Tools required for installation Drill with 3 16 bit hammer screwdriver To Remove Existing Thermostat ELECTRICAL SHOCK HAZARD Turn off power at the main service panel by removing the fuse or switching the appropriate circuit breaker to the OFF position before removing the existing thermostat 1 Turn off power to the heating and cooling system by removing the fuse or switching the appropriate circuit breaker off Remove cover of old thermostat This should expose the wires Label the existing wi
6. 208 230 265 ____ Auto Reset Limit p CAP Rev Solenoid G che gt Z I S 2 D UJ CH 20 UJ 22 Indoor Fan zm iM IndoorFanvloor RELAY COMM LV Relay Cae Green CompressorRely ___ HRE Heater Relay _____ D Reversing vane 55598 _ RIO Electronic Thermostat Made in USA 1 Stage Heat 1 Stage Cool Systems Configurable to 2 stage heat pump Large Display With Backlight Selectable Fahrenheit or Celsius Installation Operation amp Application Guide Parts Diagram Up button Down button C GL GHOB Y W eS Right fan button RESET CONFIG Left system button Reset Configuration Lo Hi fan switch switch switch Icon Descriptions Fan operation icon gt H d Offset activated o COOL Cooling operation icon 3 s Heating operation icon gt HEAT Heat set point when blinking __ A Cool set point when blinking ED Room temperature D um Specifications Electrical rating 24 VAC 18 30 VAC 1 amp maximum per terminal 3 amp maximum total load Temperature control range 45 F to 90 F 7 C to 32 C Accuracy
7. 1 4660 40 7967 79 1933 118 0 608 s a o r 0 O97 3 42 140 42 7 392 81 1 811 120 0 577 __4 40090 43 7065 82 1754 121 0 561 __5 38150 44 6791 83 1 699 122 0 547 6 36320 45 6529 84 1 645 123 0 532 __7 94580 46 6278 85 1594 124 0 519 __8 32940 47 6038 86 1544 125 0 505 9 31380 48 5809 87 1497 126 0 492 10 29900 49 5589 88 1451 127 0480 _ 11 28510 50 5379 89 1408 128 0467 s tam oaas 13 29 920 52 4 986 91 1 322 130 0 444 14 24730 53 4802 92 1282 131 0 433 e gsm sas 9 133 om2 16 22 530 55 4 456 94 1 207 133 0 412 17 21510 56 4294 95 1171 184 0 401 18 20540 57 4139 96 1136 135 0391 _ _ 58 3990 97 1 103 136 0 382 47 48 Resistance Table for Frost Protection Indoor and Outdoor Temperature Sensors Temp Resistance Temp Resistance Temp Resistance Temp Resistance oo e oar ear e 19 181 400 20 25010 59 5 130 98 1427 18 171 400 21 23900 60 4948 99 1386 17 162 100 22 22850 61 4773 100 1 346 16 153 300 23 21850 62 4 605 101 1 307 15 145 000 24 2090 63 4443 102 1269 14 137 200 25 20 000
8. 22 24 24 26 20 20 29 20 om os ose on 0 os om 0 om oor om cer ow rerun 5 0 6 9 2 2 prun DS 1080 5 m 7 38 1 4 AMPS H I on o ws o vw gt co BTUh WATTS 33 Toes os es 0 oot os er nes 12012 12000 10620 1 woo ww e E 5 3 7 3 33 5 0 14112 12564 13440 wm mm oo 5 06 0 0 3 5 us oe 08 Tos os esr os ws om om ce 17640 100 15849 1 Can 13275 a ves ves ES 160 1 5 ww sm voor is 53 ss s 5 co cs 9 9 7 SHR Ls osr 048 RATING POINT ARI 310 380 OUTDOOR DRY BULB TEMP DEGREES F AT 40 R H INDOOR WET BULB TEMP DEGREES 80 F D B 062 569 55 582 e 640 692 693 755 75 758 22 26 26 28 28 054 074 0 054 099 055 099 33 33 33 37 37 4 4 4 43 44 05 os o9 051 075 092 054 091 aler ness 12012 12000 10620 12006 10764 0264 woe 1018 wm s 1320 43 43
9. 64 4289 103 1 233 13 129 900 26 19140 65 4140 104 1 198 12 123 000 27 18130 66 3 998 105 1 164 11 116 500 28 17 550 67 3 861 106 1131 10 110 300 29 16800 68 3 729 107 1 099 9 104600 30 16100 69 3 603 108 1 069 8 99130 31 15430 70 3 481 109 1 039 7 9400 32 14790 71 3 364 110 1 010 6 89170 33 14180 72 3 252 111 0 983 5 84610 34 13590 73 3 144 112 0 956 4 80310 35 13040 74 3 040 113 0 930 3 76240 36 12510 75 2940 114 0 904 2 72410 37 12000 76 2844 115 0 880 1 68790 38 11520 77 2752 116 0 856 0 65370 39 11060 78 2663 117 0 833 62130 40 10620 79 257 118 0 811 2 59080 41 10200 80 2495 119 0 770 _ 3 56190 42 9803 81 2415 120 0 769 4 53460 43 9420 82 2339 121 0746 5 50870 44 9 054 83 2265 122 0 729 6 48420 45 8705 84 2194 123 0 710 7 46110 46 8370 85 2125 124 0 692 8 43920 47 8051 86 2059 125 0 674 9 41840 48 7745 87 1 996 126 0 658 10 39870 49 7453 88 1934 127 0 640 11 38010 50 7173 89 1875 128 0623 12 36240 51 6905 90 1 818 129 0 607 13 34570 52 6648 91
10. Friedrich Air Conditioning Co Post Office Box 1540 San Antonio Texas 78295 1540 4200 Am Expressway San Antonio Texas 78218 5212 210 357 4400 FAX 210 357 4480 www friedrich com LIAF126 Resistance Table for Air Indoor Temperature Sensor Temp Resistance E Resistance 59 _ Resistance Resistance F 18 128 600 21 1790 60 3711 99 1 039 _ 17 121 600 22 17140 61 3579 100 1 009 16 115 000 23 16 390 62 3454 101 0 980 15 108 700 24 15680 63 3333 102 0 952 14 102900 25 15000 64 83217 103 0 925 18 97400 26 14360 65 3 105 104 0 898 suam Gp 286 0 osas 11 87 350 28 13 160 67 2 896 106 0 848 __ 10 82750 29 12600 68 2797 107 0 825 mem s nem w 1 oma 4 350 31 11 570 70 2 611 109 0 779 7 70500 32 11090 71 2523 110 0758 6 66 880 33 10630 72 2439 111 0737 5 63 460 34 10200 73 2358 112 0717 4 60230 35 9779 74 2280 113 0 697 8 57180 36 9982 75 2206 114 0 678 _ 2 5430 37 9003 76 2133 115 0660 _ 1 51590 38 8642 77 2064 116 0 642 0 49020 39 8297 78 1997 117 0 625
11. HEATING CURRENT EUM e ELECTRICAL RATING TABLES 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 Failure to do so could result serious personal injury or death NOTE Use Copper Conductors ONLY Wire sizes are per NEC check local codes for overseas applica tions Table 1 250 V Receptacles and Fuse Types AMPS Sle le TIME DELAY TYPE FUSE or HACR circuit breaker HACR Heating Air Conditioning Refrigeration May be used for 15 Amp applications if fused for 15 Amp NOTE 265 volt units are hard wired Table 2 Recommended branch circuit wire sizes NAMEPLATE MAXIMUM 8 CIRCUIT BREAKER SIZE AWG WIRE SIZE 15 14 12 10 AWG American Wire Gauge Single circuit from main box Based on copper wire single insulated conductor at 60 C Use ONLY wiring size recommended for single outlet branch circuit Use ONLY type and size fuse or HACR circuit breaker indicated on unit s rating FUSE CIRCUIT plate Proper current protection to the unit BREAKER is the responsibility of the owner NOTE A time delay fuse is provided with 265V units Unit MUST be grounded from branch circuit through service cord to unit or through separate ground wire provided on permanently connected
12. Operation Wireless Remote Control Ready Internal Diagnostic Program Service Error Code Storage Constant Comfort Room Monitoring Electronic Temperature Limiting Room Freeze Protection Random Compressor Restart By digitally monitoring desired room temperature the room is controlled more precisely than conventional systems The large easy to read LED display can show either set point or actual room temperature as selected by owner When the unit is powered off the unit can be returned directly to heating or cooling mode by pressing the Heat or Cool buttons without the confusing power up sequence of some controls One touch control takes guess work out of unit control delivering a more enjoyable experience and eliminating front desk calls By having separate control buttons and indicators for both fan and mode settings the Friedrich digital con trol eliminates the confusion of previous digital PTACs The accurate temperature setting provides greater guest comfort than other systems The fan start and stop delays prevent abrupt changes in room acoustics due to the compressor energizing or stopping immediately Upon call for cooling or heating the unit fan will run for five seconds prior to en ergizing the compressor Also the fan off delay allows for free cooling by utilizing the already cool indoor coil to its maximum capacity by running for 30 seconds after the compressor Some applications require the use
13. 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 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 Touch Test in Heating Cooling Cycle discharge gas from the compressor is directed back to the suction side resulting in excessively high suction pressure A WARN G Should the valve fail to shift from coooling to heating BURN HAZARD block the air flow through the outdoor coil and allow the Certain unit components operate at discharge pressure to build in the system Then switch the temperatures hot enough to cause burns system from heating to cooling 2 Proper safety procedures must be followed and proper protective clothing must be If the valve is stuck in the heating position block the air yh worn flow through the indoor coil and allow discharge pressure to build in the system Then switch the system from heating Failure to follow these procedures could to cooling result in minor to moderate injury Should the valve fail to shift in either position after increasing The only definite
14. ranges for both heating and cooling independently of one another When the PTAC senses that the indoor room temperature has fallen to 40 F the unit will cycle on high fan and the electric strip heat to raise the room temperature to 46 F then cycle off again This feature works regardless of the mode selected and can be turned off The control will also store the Room Freeze cycle in the service code memory for retrieval at a later date This feature ensures that unoccupied rooms do not reach freezing levels where damage can occur to plumbing and fixtures Multiple compressors starting at once can often cause electrical overloads and premature unit failure The random restart delay eliminates multiple units from starting at once following a power outage or initial power up The compressor delay will range from 180 to 240 seconds Digital Control Operation Digital Control Panel RES Low Fan Speed F vs C Display The unit is factory configured to display all temperatures in degrees Fahrenheit F To switch to degrees Celsius press the Fan Only and Low Fan buttons simultaneously for three seconds The display will show a C as acknowledgement of the change To revert back to F press the Fan Only and Low Fan buttons simultaneously for three seconds The display will show an F as acknowledgement of the change Cooling Mode Pressing the Cool button while the unit is in any mode includi
15. 1736 130 0 592 _ 14 32980 53 6403 9 1710 131 0577 _ 15 31470 54 6167 93 1 658 132 0563 _ 6 30040 55 5 942 94 1609 133 0 549 17 56 5 726 95 1 561 134 0 535 18 57 5 519 96 1 515 135 0 521 19 5 320 97 1 470 136 0 509 FRIEDRICH Friedrich Air Conditioning Company 10001 Reunion Place Suite 500 San Antonio TX 78216 800 541 6645 www friedrich com PD SERIES PACKAGED TERMINAL AIR CONDITIONERS LIMITED WARRANTY SAVE THIS CERTIFICATE It gives you specific rights You may also have other rights which may vary from state to state and province to province In the event that your unit needs servicing contact your nearest authorized service center If you do not know the nearest service center ask the company that installed your unit or contact us see address and telephone number above To obtain service and or warranty parts replacement you must notify an authorized FRIEDRICH Air Conditioning Co service center distributor dealer or contractor of any defect within the applicable warranty period When requesting service please have the model and serial number from your unit readily available Unless specified otherwise herein the following applies FRIEDRICH PACKAGED TERMINAL AIR CONDITIONERS AND HEAT PUMPS LIMITED WARRANTY FIRST YEAR Twelve 12 months from the date of installation Any part found to be defective in the material or workmanship will be rep
16. Box Conduit Connector Bushing then the Conduit Sleeve Refer to wire harness insertion diagram Route the cut ends of the power cord through the elbow connector at the other end of the conduit Tighten screws on elbow connector to secure conduit sleeve Fasten and secure the elbow connector to the wall junction box cover with locknut Place and mount the wall junction box with the four wall mounting screws making sure to pass the wall lines through the junction box Connect and join all wall lines with the stripped ends using wire nuts Tighten both screws of the wall junction box cover to junction box STRAIGHT CONNECTOR O E Z JUNCTION BOX GROUND 42 9 COVER JUNCTION BOX COVER LEADING SIDE FOR WIRE HARNESS INSERTION SPACER p LOCKNUT chassis JUNCTION SPACER BOX CONDUIT CONNECTOR BUSHING CONDUIT SLEEVE EXITING SIDE FOR WIRE HARNESS FRP034 17 Remote Control Thermostat Installation Install Thermostat 1 Approximately 5 ft from the floor 2 Close to or in a frequently used room preferably on an inside wall 3 section of wall without pipes or ductwork The Thermostat should NOT he mounted 1 Close to a window on an outside wall or next to a door leading outside 2 Where it can be exposed to direct sunlight or heat such as the sun a lamp fireplace or any temperature radiating object which may cause a false read
17. Compressor PROBLEM Outdoor Coil TROUBLESHOOTING CHART HEATING REFRIGERANT SYSTEM DIAGNOSIS HEATING PROBLEM LOW SUCTION PRESSURE Low Air Flow Across Outdoor Coil Refrigerant System Restriction Undercharged PROBLEM HIGH SUCTION PRESSURE Outdoor Ambient Too High for Operation in Heating Reversing Valve not Fully Seated Overcharged Defective Compressor PROBLEM LOW HEAD PRESSURE Refrigerant System Restriction Reversing Valve not Fully Seated Undercharged Defective Compressor PROBLEM HIGH HEAD PRESSURE Outdoor Ambient Too High For Operation In Heating Low Air Flow Across Indoor Coil Overcharged Non Condensables air in System ELECTRICAL TROUBLESHOOTING CHART HEAT PUMP AA WARNING CAUTION ELECTRIC SHOCK HAZARD BURN HAZARD Turn off electric power before service or Certain unit components operate at installation temperatures hot enough to cause burns Extreme care must be used if it becomes Proper safety procedures must be followed Seay necessary to work on equipment with power and proper protective clothing must be applied worn Failure to do so could result in serious injury Failure to do so could result in minor to or death moderate injury HEAT PUMP SYSTEM COOLS WHEN HEATING IS DESIRED Is Line Voltage Present at the Solenoid Valve YES Is the Solenoid Coil Good Replace the Solenoid Coil NO YES Is the Selector Switch Set for Heat Re
18. The unit mounted controls no longer control the unit To restore the unit mounted controls move dip switch 2 to the down or OFF position Thermostat Connections 24V Power from Unit Y Call for Cooling W Call for Heating O Reversing Valve Energized in cooling mode PDH Models Only GL 7 Call for Low Fan Call for High Fan C Ground H only one terminal is present on thermostat connect to GL for low speed fan or to GH for high speed fan operation Control board with optional PDXRT escutcheon kit installed Controlled by Wall Thermostat C Use wall Ihermostal fo aperafe wii 18 FRP029 Desk Control Terminals The Friedrich PD model PTAC has built in provisions for connection to an external switch to control power to the unit The switch can be a central desk control system or even a normally open door switch For desk control operation connect one side of the switch to the 01 terminal and the other to the D2 terminal Whenever the switch closes the unit operation will stop NOTE The desk control system and switches must be field supplied Energy Management Sometimes known as Front Desk Control an input is provided so that the unit can be manually disabled from a remote location If the unit detects 24Vac on this input it will automatically turn itself off If no voltage is detected on the input the unit will run normally NOTE Itis the installer s responsibility to ensure that
19. 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 AA 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 ROUTINE MAINTENANCE ELECTRICAL SHOCK HAZARD Turn off electrical power before service or installation All eletrical connections and wiring MUST be installed by a qualified electrician and conform to the National Code and all local codes which have jurisdiction Failure to do so can result in property damage personal injury and or death To ensure proper unit operation a
20. a proper seal OUTDOOR AIR HANDLING SECTION The outdoor air section shall consist of a single injection molded fan shroud that incorporates the outdoor motor mount into a single piece for ease of service and assembly The outdoor motor shall be totally enclosed ball bearing permanently lubricated and directly drive the outdoor fan slinger ring CONTROLS Covered controls shall be accessible in a compartment atleast 777 wide with the controls no deeper than 1 74 in the opening to facilitate easy operation of the unit The unit controls shall feature a soft blue LED readout that can display either room temperature or setpoint temperature The unit shall re ceive input from the digital control panel through push buttons labeled Cool Heat High Fan Med Fan Low A W and Power When Off the unit may be put directly into cooling or heating mode by pressing the Cool or Heat button The unit must have the following energy saving and convenience features built in Quiet start stop fan delay Fan cycle control for cooling and heating independently e Room freeze protection e Random compressor restart Electronic temperature limiting The PTAC must also offer the ability to be controlled by a remote wall mounted thermostat without additional accessories Low voltage inputs will include C common R 24V power Y cooling GL fan low GH fan high W heat
21. much refrigerant overcharge 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 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 RAC system is the Weighed in Charge Metho
22. not blink HEAT icon will blink Cool Set Point current cool set point larger on the display When the large set point is displayed Use the SYS button to select Cool Mode Press the up or down button to view the H Li the COOL icon will blink The up or down buttons can be used to adjust the set point After 5 seconds of inactivity the screen will display the room temperature and the COOL icon will not blink COOL icon will blink LJ Testing the Thermostat Once the thermostat is configured it should be thoroughly tested AUTIO N Do not energize the air conditioning system when the outdoor temperature is below 50 degrees It can result in equipment damage or personal injury Heat Test 1 Press SYS left button until heat mode is displayed 2 Adjust the temperature so it is 5 degrees above the room temperature 3 Heat should come on within a few seconds 4 Adjust the set temperature 2 degrees below the room temperature and the heat should turn off There may be a fan delay on your system o 1 C xx Note For heat pumps there is a four minute delay to protect your compressor after it turns off To bypass the compressor time delay go to OFF mode for 5 seconds Cool Test 1 Press SYS left button until cool mode is displayed P oo I 1 2 Adjust set temperature so it is 5 degrees below room temperature 58 3 A C should come on within
23. of a wall mounted thermostat All new Friedrich PTACs may be switched from unit control to remote thermostat control easily without the need to order a special model or acces sory kit Guests can adjust the temperature and mode of the unit through the use of an optional hand held wireless remote improving guest comfort and relaxation The new Friedrich digital PTAC features a self diagnostic program that can alert maintenance to compo nent failures or operating problems The internal diagnostic program saves properties valuable time when diagnosing running problems The self diagnosis program will also store error codes in memory if certain conditions occur and correct themselves such as extreme high or low operating conditions or activation of the room freeze protection feature Storing error codes can help properties determine if the unit faced obscure conditions or if an error occurred and corrected itself The on board processor monitors time between demand cycles heat or cool and will cycle the fan every 9 minutes to sample the room condition and determine if the desired conditions are met This allows the room to have similar benefi ts to a remote mounted stat without the complication or cost of a wall mounted thermostat By limiting the operating range the property can save energy by eliminating max cool or max heat situ ations common with older uncontrolled systems The new electronic control allows owners to set operating
24. or louver shall be shipped separately and made from stamped or extruded anodized aluminum All louvers shall be in the horizontal plane The front panel shall attach firmly to the chassis by two hidden spring clips As an option the cover may be attached by two screws to pre vent tampering The front panel will feature a contoured discharge with no sharp corners CORROSION PROTECTION The unit shall have corrosion resistant fans fan shroud and drain pan for corrosion protection and to prevent rust on the side of the building below the outdoor louver The unit shall feature corrosion resistant materials and finishes to help prevent dete rioration The outdoor coil shall have Diamonblue corrosion protection consisting of hydrophilic coated fins to prolong the life of the coil in all applications including seacoast environments All outdoor coils shall also have stainless steel endplates to eliminate rusting of the endplates WARRANTY The warranty is one year on all parts and 5 years on the sealed system including compressor indoor and outdoor coils and refrigerant tubing Component Identification Typical Unit Components and Dimensions WALL SLEEVE OUTDOOR GRILLE DISCHARGE GRILLE RETURN AIR GRILLE FILTERS FRONT COVER PDXWS Wall Sleeve Dimensions 16 H x 42 W 13 34 Front Cover Dimensions 16 H x 42 W x 7 34 D Cut Out Dimensions 16 42 14 Accessories New Construction Access
25. remote control the batte Replace the batte is too short i LCD display flashes or when pressing the transmit button the entire screen Battery s capacity is insufficient Replace the battery is displayed LED display is found short of stroke The LCD frame hasn t fixed well Fix the LCD frame properly The compressor hasn t installed well and the baseia finm base is unstable The unit hasn t placed flatly and stable Adjust the unit s position Vibration and noise are abnormal The unit s support is unstable Strengthen the support or refit it There are foreign objects on the unit Get rid of the foreign objects Slect the A C which is applicable to the room areas As for the above malfunction analysis there aren t malfunction related to heating for the cooling only unit 26 COMPONENTS TESTING BLOWER 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 AA 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 Make sure the motor has cooled down 2 Disconnect the fan motor wires from the control board 3 Test for continuity between the windings also test to ground 4 If a
26. 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 A WARNING In a single phase PSC compressor motor the highest value will be from the start to the run connections 5 to BURN HAZARD R The next highest resistance is from the start to the Certain unit components operate at common connections CS to The lowest resistance gt temperatures hot enough to cause burns is from the run to common to R Before replacing a Proper safety procedures must be followed compressor check to be sure it is defective and proper protective clothing must be worn MEIN NOTE OHM Figures are for examples only not actual values for the compressor Failure to follow this warning could result in moderate to serious injury 3 16 OHMS LO 49 OHMS External Overload With power off remove the leads from compressor termi nals If the compressor is hot allow the overload to cool before starting check Using an ohmmeter test continu ity across the terminals of the external overload If you do not have continuity this indicates that the overload is open and must be replaced GER RESISTANCE RtoC EQUALS RESISTANCE StoR 3 65 OHMS OHMMETER GROUND TEST Use an ohmmeter set on its highest scale Touch one lead to the compressor body clean point of cont
27. stage heat for PDH model thermostat features high low fan speed switch Thermostat is hard wired and can be battery powered or unit powered Features backlit display and multiple configuration modes For use on PD series Friedrich PTACs and Vert I Paks REMOTE THERMOSTAT ESCUTCHEON KIT This kit contains ten escutcheons that can be placed over the factory control buttons when a remote wall mounted thermostat is used The escutcheon directs the guest to the wall thermostat for operation and retains the LED window to display error codes and diagnostic information Controlled by Wall Thermoptt Vir by spec peel SLEEVE EXTENSION RETROFIT KIT Galvanized zinc coated steel 2 4 sleeve extension attached to the room side of the sleeve to allow for the installation of a PD Series Friedrich PTAC in a T Series sleeve LATERAL DUCT ADAPTER Attaches to the PTAC PTHP unit and provides a transition to direct up to 35 of the total CFM to a second ary room either left or right of the unit Kit includes duct plenum with discharge grille and internal baffle adapter and end cap LATERAL DUCT EXTENSION A three foot insulated plenum that at taches to the left or right side of the duct adapter The extension can be cut to length by the installer Maximum allowable straight extension is 15 feet Accessories New Construction Accessories CONDUIT KIT WITH JUNCTION BOX Hard wire conduit kit with junction box for 208 230V and 2
28. 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 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 BA K Discharge Line Condenser Coil Compressor Liquid Line d 29 30 R 410A SEALED REFRIGERATION SYSTEM REPAIRS IMPORTANT SEALED SYSTEM REPAIRS TO COOL ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER SEALED SYSTEM REPAIRS TO HEAT PUMP MODELS REQUIRE THE INSTALLATION OF A SUCTION LINE DRIER EQUIPMENT REQUIRED 1 o AA WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure 2 3 4 5 Voltmeter Ammeter Ohmmeter E P A Approved Refrigerant Recovery System Vacuum Pump capable of 200 microns or less vacuum Acetylene Welder Electronic Halogen Leak Detector capable of detect ing HFC Hydrofluorocarbon refrigerants Accura
29. tube metering devices Checking for restricted capillary tubes 1 Connect pressure gauges to unit 2 Start the 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 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 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 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 4 Ifthe operating pressures are lower than normal in both the heating and cooling mode the cooling capillary is restricted 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 bypassing the heating or cooling capillary tube and entering the liquid line COOLIN
30. will run continuously providing circulation during the warm months owner s preference by moving Dip Switch 7 to OFF This feature The heating fan cycle 5 set to cycle and off The fan may will monitor the indoor room conditions and in the event that the be set to continuous mode by switching Dip Switch 3 to ON room falls below 40 F the unit will cycle on high fan with the postion electric heater This occurs regardless of mode 5 Freeze Protection Switch 7 Units are shipped from the factory with the room freeze protection enabled Room Freeze Protection can be switched off at the Dip Switches DIP SWITCH LOCATION OF DIP SWITCHES Freeze guard ON UNIT Setpoint Limit 2 Setpoint Limit 1 Fan CON CYC for cooling Fan CON CYC for heating Wall Thermostat enable Electric heat only for Heat Pumps 28 Emergency Heat Override Enables electric heat only operation in the event of a Down Normal Operation Up Overrides compressor operation for PDH Heat Pump PDH models only Models EC Eeer ees Ee 5 SetpontSwitht Allows the temperature setpoint range to be adjusted 86F rad 80F a 65F 78F rs 75F 16 30 18 28 19 26
31. 001 Reunion Place Ste 500 San Antonio TX 78216 P 210 546 0500 F 210 546 0731 www friedrich com Printed in the U S A PD ServMan E 2 11
32. 007 1 6870014 1 6870008 1 6870007 1 6870013 6870012 68700104 68700123 68700161 68700119 68700110 68700156 C2 51 52 2011 PTAC PARTS LIST PDH MODELS Friedrich Friedrich 68700138 68700138 68700058 68700152 68700097 68700127 68700147 Friedrich 68700138 68700082 68700152 68700160 68700127 68700147 Friedrich 68700138 68700083 68700152 68700077 68700127 68700147 Friedrich 68700138 68700082 68700152 68700097 68700127 68700147 Friedrich 68700138 68700083 68700152 68700097 68700127 68700147 PDHO7K3SF PDHO7R3SF PDHO9K3SF 6 Bellows Drain Vaive 1 168700134 68700134 68700134 68700134 68700134 68700134 68700134 68700134 68700118 68700118 68700118 68700118 68700118 8 Capacitor 1 68700100 68700100 68700107 68700100 68700107 68700107 68700043 68700107 9 _ Fan 1 168700113 68700113 68700113 68700113 68700109 68700108 68700109 68700109 9 Capacitor Fan 1 68700091 68700108 68700091 68700108 68700113 68700109 68700113 68700108 68700060 68700084 68700084 68700018 68700019 68700124 68700124 68700124 68700124 68700124 68700125 68700125 68700125 68700125 68700125 13 68700003 68700047 68700048 68700007 68700008 Fresh Air Door Cable 53 Wiring Terminal 2 position 24VAC 54 Wiring Terminal 7 position 24VAC 4 FRIEDRICH FRIEDRICH AIR CONDITIONING CO 10
33. 179 9423 10080 9504 8766 9684 900 7965 9072 8055 7101 8073 6948 6138 PDHO9 Fwms es se m ne rz o se wo ws sw we 96 31 s 7 37 4 SHR 049 oee 089 os 069 09 05 091 051 075 092 054 08 BTUh __ 14112 13572 12564 13440 12672 11688 12912 12000 10620 12096 10740 9468 10764 9264 8184 ppuio 914 928 939 996 1006 1018 1120 4120 1120 1211 1210 1213 1320 1320 1326 AMPS 4 2 4 2 4 3 4 5 4 6 4 6 9 1 5 10 5 1 5 9 5 9 9 9 6 6 os o 05 ws os os an ws ost ase 08 17052 16400 15182 16240 15312 14123 15602 14500 12833 14616 12978 11441 13007 1194 9889 PDHIS AMPS 54 55 55 59 59 59 65 66 71 71 71 77 77 77 SHR 048 065 088 049 068 O89 049 09 os 09 053 079 09 RATING POINT ARI 310 380 Extended Performance PDHO07 PDHO09 OUTDOOR DRY BULB TEMP DEGREES F PDH12 PDH15 RATING POINT ARI 310 380 Cooling amp Heating Performance PDE 265V Extended Cooling Performance OUTDOOR DRY BULB TEMP DEGREES F AT 40 R H INDOOR WET BULB TEMP DEGREES F AT 80 F D B n 55 2 5 ss s om s om ros 7s 7 21
34. 20 24 Room Freeze Protection Allows the unit to ensure the indoor room temperature does Freeze SC Enabled Freeze Protection welt not fall below 40F even when turned off pressor failure on HP models DIGITAL CONTROL DIAGNOSTICS The chart below lists malfunctions and their description Thermostat wiring error 23 MALFUNCTION ANALYSIS No power supply Fuse is burned out Supply voltage is too low Switch is broken down Failure of crystal oscillator or reset circuit The wire is loosened Transformer is broken Controller is broken Receiver head is loosened Receiver head is broken or it isn t plugged well Remote controller has malfunction The thermostat hasn t been adjusted well Too much dust accumulated on the filter Heat exchanger is blocked Fan speed is set too slow A C can run but it can t cooling or heating The fan can t run or the fan speed is too slow 24 Switch is at the OFF position or socket and plug is loosened or power wire has malfunction or power failure Replace the fuse Inspect the supply voltage If it is lower 1096 of the rated voltage pleaselook for the reason improve the Check if optional switch ON OFF is disconnected with the wire or it s with mechanical failure use the universal meter to check if contacts of the switch are conducting if not replace it with a new one with the same model and specification Replace those parts whic
35. 210 227 2450 718 545 5464 800 328 2450 800 431 1143 TECHNICAL SUPPORT CONTACT INFORMATION FRIEDRICH FRIEDRICH AIR CONDITIONING CO 10001 Reunion Place Ste 500 San Antonio TX 78216 210 546 0500 877 599 5665 x 261 FAX 210 546 0630 Email tac friedrich com www friedrich com Printed in the U S A Table of Contents Important Safety Information 2 4 Idee Le tr 4 General Product Features 5 HVAC Engineering Specifications 6 Component identification 7 FAOCCOS SONGS 8 9 Unit 34141 1 EE 10 Chassis Specifications 11 Cooling and Heating Performance 12 13 Electric Feat a 14 Electrical Rating Tables 15 Power Cord Information 15 17 Remote Wall Thermostat Low Voltage Wire Connections NNN 18 19 Digital Control Features 2 20 Digital Control Operation 21 Digital Control User Input Configuration 22 Digital Control Diagnostics 23 Malfunction Analysis 24 26 Components Testing 27 28 Refrigeration System Sequence of Op
36. 43 48 5 2 5 6 5 5 7 05 0 5 1 2 3 2 3 8 5 0 3 5 1 1 7 1 7 7 gt 265V Extended Cooling Performance BTUh 9 WATTS AMPS er RECH 3 8 5 5 2 0 BTUh 1058 1017 9 WATTS 6 6 H 9 9 0 72 7 055 22 31 2 2 53 4 9 53 63 3 1 1 AQ 2 2 14 28 4 4 49 2 0 8 7 7 6 53 42 67 3 0 8 93 gt 6 SCH Lus 1706 ag 1620 18812 14123 152 12000 12078 1007 oeeo 120 124 sr 57 e 61 se 9 9 SHR 048 oas oe os o7 os os om 09 oss om 09 RATING POINT ARI 310 380 Extended Heating Performance omn 1 1411 256 2 3 4 58 066 089 43 43 48 069 05 09 0 51 0 75 0 92 0 54 0 91 6 3 0 1 9 4 9 2 0 569 2 1 0 54 0 711 3 3 0 5 0 4 3 0 5 0 6 5 1 49 72 800 5 43 3 6 6 0 4s 52 s2 52 ss 66 Las ost ws ow os 08 o9 6 4 0 0 T 2 T 5 s J a o gt s ws a 1 8 4 4 oo WATTS 1197 1212 1300 _____ 1377 1439 AMPS 4 1 4 ee RATING POINT ARI 310 380 BTUh 10530 10850 o 30 O 14550 15940 PDH15 14 Electric Heat Data El
37. 65V units subbase not required Kit includes a means of quick disconnect for easy removal of the chassis Required for 265V installations REPLACEMENT FILTER PACK These are original equipment return air filters They are reusable and can be cleaned by vacuuming washing or blowing out and are sold in convenient ten packs Two filters per chassis UNIT IDENTIFICATION Model Number Code PDHO SF A Engineering Digit Series PD P Series Digital PTAC Design Series System Cooling with or without electric heat Heat Pump with Auxiliary Heat Options S Standard Nominal Cooling Capacity 07 7000 BTUh 09 9000 BTUh 12 12000 BTUh 15 15000 BTUh Nominal Heater Size 230V or 265V No Heater 2 2KW 3 3KW 5 5 0KW Voltage 208 230V 1Ph 60Hz R 265V 1Ph 60Hz PTAC Serial Number Identification Guide 00001 PRODUCTION RUN NUMBER SERIAL NUMBER YEAR MANUFACTURED LJ 2009 AK 2010 AA 2011 AB 2012 AC 2013 AD 2014 AE 2015 AF 2016 AG 2017 AH 2018 AJ 2019 PRODUCT LINE PTAC MONTH MANUFACTURED A Jan D Apr Feb May Jun G Jul H Aug J Sep Chassis Specifications PDE Series PDEO7K PDEO7R PDEOSK PDEOOR PDE12K PDE12R PDE15K PDE15R PERFORMANCE DATA ER 120122 120 nama 107105 107 9897 _ 98 ELECTRICAL DATA VOLTAGE 1 PH
38. ASE 60 Hz 230 208 230 208 230 208 230 208 292 239 POWERFACTOR 097 099 099 099 27 8 66 26 0 031 AIRFLOW DATA 385 360 20 75 3 PHYSICAL DATA 16x42x13 34 PDH Series PDHO7K PDHO7R PDHO9K PDHO9R PDH12K PDH12R PDH15K PDH15R PERFORMANCE DATA 13300 720 1300 3 3 DEHUMIDIFICATION pints hr _ 17 17 22 2 1 7 ELECTRICAL DATA VOLTAGE 1 PHASE 60 Hz 230 208 265 VOLT RANGE 253 187 292 239 CURRENT AMPS 5 1 5 3 REVERSE HEAT Amps 4 5 4 7 POWERFACTOR 09 09 099 099 098 098 26 0 0 031 AIRFLOW DATA 385 360 320 75 PHYSICAL DATA 16x42x13 5 123 Due to continuing research in new energy saving technology specifications are subject to change without notice C2 OJN im 250 V Receptacles and Fuse Types Een a2 PERFORMANCE CERTIFIED ARI Standard 310 380 Packaged Terminal AC www aridirectory org CERTIFIED ARI Standard 310 380 Packaged Terminal HP www aridirectory org Ww 8 11 Cooling amp Heating Performance PDE 230V Extended Cooling Performance OUTDOOR DRY BULB TEMP DEGREES F AT 40 R H INDOOR WET BULB TEMP DEGREES F AT 80 F D B 72 67 72 WE o 72 67 62 72 e e BTUh WATTS 522 531 569 582 640 640 692 691 693 755 755 758
39. G 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 is metered through cooling capillary tubes to evaporator Note liquid refrigerant will also be directed through the 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 heating capillary tubes in a continuous loop during the cooling mode 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 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 In the heating mode of operation high pressure refrigerant enters the ch
40. HEAT OVERRIDE DESK CONTROL READY INDOOR COIL FROST SENSOR ULTRA QUET AIRSYSTEM HIGH EFFICIENCY DUAL MOTOR ROTARY COMPRESSOR STAINLESS STEEL ENDPLATES TOP MOUNTED ANTIMICROBIAL AIR FILTERS FILTERED FRESH AIR INTAKE R 410A REFRIGERANT Diamonblue seacoast protection protects the outdoor coil from harsh environments Comes standard on all models The new Friedrich PTAC uses a digital thermostat to accurately monitor the outdoor coil conditions to al low the heat pump to run whenever conditions are correct Running the PTAC in heat pump mode saves energy and reduces operating costs The digital thermostat allows maximization of heat pump run time Heat pump models will automatically run the electric heater to quickly bring the room up to temperature when initially energized then return to heat pump mode This ensures that the room is brought up to temperature quickly without the usual delay associated with heat pump units The digital control monitors indoor conditions to ensure that the room temperature is within five degrees of the setpoint If necessary the unit will cycle the electric heat to maintain the temperature This feature ensures guest comfort by delivering the heating benefits of an electric heater while maintaining the ef ficiency benefits of a heat pump The owner may choose between fan cycling or fan continuous mode based on property preference Note Even heat monitoring and quiet start stop fan d
41. Service Manual 3 FRIEDRICH 2011 PTAC R410A Models Packaged Terminal Air Conditioners Packaged Terminal Heat Pumps PD ServMan E 2 11 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 CHARGES TO CUSTOMER The customer end user is not to be charged for any warranty repairs to correct defects in materials or workmanship in accordance with the specific warranty provisions outlined in the product s warranty certificate 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 1450 North Flores Street 27 01 Brooklyn Queens Expway San Antonio Texas 78212 Woodside New York 11377
42. a few seconds iC 4 Adjust the set temperature 2 degrees above the room temperature and the A C should turn off There may fan delay on your system Note There is four minute time delay to protect the compressor after it To bypass the compressor time delay go to OFF mode for 5 seconds Fan Test n 5 1 Press FAN right button Fan displays Indoor fan turns ON E 2 Press FAN right button Indoor fan turns OFF gt OFF Troubleshooting Symptom No display All thermostat buttons are inoperative No response with first button press Thermostat turns on and off too frequently Fan runs continuously Remed Check for 24 VAC at thermostat display is blank when 24 VAC is not present Verify 24 VAC is present unit locks out when 24 VAC is not present First button press activates backlight only Adjust temperature differential see Configuration Mode Settings 3 amp 4 Press FAN right button to turn fan off Room temperature is not correct Calibrate thermostat see Configuration Mode Setting 10 Heat or Cool not coming on Verify wiring is correct gently pull on each wire to verify there is a good connection at terminal block HEAT blinking COOL blinking Problem not listed above In heat set point screen In cool set point screen Press Reset button once Reset Button Function Display is refreshed configuration settings are unchanged
43. act as a ROTARY good connection is a must and the other probe in turn COMPRESSOR to each compressor terminal If a reading is obtained the compressor is grounded 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 Many compressor failures are caused by the following conditions ELECTRIC SHOCK HAZARD 1 Improper air flow over the evaporator Turn off electric power before service or 5 Overch d refri TE na liquid to b installation Extreme care must be used if it Overcnarged reirigerant system Causing liquid to be becomes necessary to work on equipment returned to the compressor with power applied 3 Restricted refrigerant system Failure to do so could result in serious injury or death 4 Lack of lubrication Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale R x 1 5 Liquid refrigerant returning to compressor causing oil to be washed out of bearings Touch the leads of the ohmmeter from terminals common to start C to S Next touch the leads of the ohmmeter 6 Noncondensables such as air and moisture in fr
44. again Cool Fan Temperature Mode Heat Cool Models PDE After pressing the Heat button adjust the temperature readout to the desired room temperature and the unit will cycle the resistance heat on and off to maintain a comfortable room The heater will come on anytime that the room temperature is 1 8 F below the desired temperature The fan operation is dependent on the fan mode selected either continuous or cycling Dip switch 3 controls the fan mode see page 23 for setting Emergency Heat Operation In the event of a compressor failure in heat pump mode the compressor may be locked out to provide heat through the resistance heater This feature ensures that even in the unlikely event of a compressor failure the room temperature can be maintained until the compressor can be serviced Dip switch 1 controls the emergency heat setting see page 23 Fan Mode All units are shipped with fan mode set to continuous for cooling and cycle for heating Fan Only Mode Pressing the Fan button will run the fan to allow for air circulation in the room without operating the compressor or heater regardless of the room or set temperature The fan speed selection is made by pressing either the High Fan Med Fan or Low Fan button Cycle Continuous The owner may choose between fan cycling or fan continuous mode based on property preference Note Even heat monitoring and quiet
45. aired or replaced free of charge by our authorized service center during the normal working hours and LIMITED WARRANTY SECOND THROUGH FIFTH YEAR Sixty 60 months from the date of installation ON THE SEALED REFRIGERATION SYSTEM Any part of the sealed refrigeration system that is defective in material or workmanship will be repaired or replaced free of charge excluding freight charges by our authorized service center during normal working hours The sealed refrigeration system consists of the compressor metering device evaporator condenser reversing valve check valve and the interconnecting tubing These warranties apply only while the unit remains at the original site and only to units installed inside the continental United States Alaska Hawaii Puerto Rico Mexico and Canada The warranty applies only if the unit is installed and operated in accordance with the printed instructions and in compliance with applicable local installation and building codes and good trade practices For international warranty information contact the Friedrich Air Conditioning Company International Division Any defective part to be replaced must be made available to FRIEDRICH in exchange for the replacement part Reasonable proof must be presented to establish the date of install otherwise the beginning date of this certificate will be considered to be our shipment date plus sixty days Replacement parts can be new or remanufactured Replacement parts and la
46. all control wiring connections are made in accordance with the installation instructions Improper connection of the thermostat control wiring and or tampering with the unit s internal wiring can void the equipment warranty Other manufacturer s PTACs and even older Friedrich models may have different control wire connections Questions concerning proper connections to the unit should be directed to Friedrich WARNING Electrical Shock Hazard Turn off electrical power before service or installation ALL electrical connections and wiring MUST be installed by a qualified electrician and conform to the National Code and all local codes which have jurisdiction Improper connection of the thermostat control wiring and or tampering with the units internal wiring may result in property damage personal injury or death 19 FRIEDRICH DIGITAL CONTROL FEATURES The new Friedrich digital PTAC has state of the art features to improve guest comfort indoor air quality and conserve energy Through the use of specifically designed control software for the PTAC industry Friedrich has accomplished what other Manufacturer s have only attempted a quiet dependable affordable and easy to use PTAC Below is a list of standard features on every Friedrich PTAC and their benefit to the owner 20 Digital Temperature Readout One Touch Operation Individual Mode and Fan Control Buttons Quiet Start Stop Fan Delay Remote Thermostat
47. an system design that reduces sound levels without lowering airflow or preventing proper air circulation The Friedrich PTAC has been engineered so that all functional systems are optimized so that they work together to deliver the highest possible performance With Friedrich s new dual motor design the indoor motor can run at slower speeds which reduces sound levels indoors High efficiency rotary compressors are used on all Friedrich PTACs to maximize durability and effi ciency Outdoor coil endplates made from stainless steel reduce corrosion on the outdoor coil common with other coil designs All Friedrich PTAC return air filters feature an antimicrobial element that has proven to prevent mold and bacterial growth in laboratory testing PDXFT replacement filter kits feature the same antimicrobial agent All filters are washable reusable and easily accessed from the top of the unit without the removal of the front cover Friedrich PTAC units are capable of introducing up to 75 CFM of outside air into the conditioned space The outdoor air passes through a washable mesh screen to prevent debris from entering the airstream Friedrich PTAC units use environmentally friendly refrigerant HVAC Engineering Specifications Digital Packaged Terminal Air Conditioners amp Heat Pumps Cooling 7600 15 000 Btuh Heating 7600 14500 Btuh Heat Pump 6824 17060 Btuh Electric Heat Friedrich Models PDE Cooling with or
48. ance to the next screen 6 Auxiliary Delay ON 0 30 minutes For HP 0 only Set the delay time in minutes for auxiliary heat to be locked out after a call for second stage This extra savings feature is used to temporarily lock out auxiliary heat devices flu HEAT allowing just heat pump to try to satisfy heat call 0 00 Press the down button to select Press the right button to advance to the next screen 7 Maximum Heat Setpoint 45 F to 90 F 7 C to 32 C Adjust to control the maximum heat set temperature allowed Press the down button to select Hi Press the right button to advance to the next screen 8 Minimum Cool Setpoint 45 F to 90 F 7 C to 32 C Adjust to control the minimum cool set temperature allowed Press the up or down button to select Lg Press the right button to advance to the next screen 9 Room Temperature Offset 9 F to 9 F 4 5 C to 4 5 C Adjust to calibrate displayed room temperature to match actual room temperature x Note When not set to 0 9 will display rm Press the down button to select Press the right button to advance to the next screen Mode of Operation The RT6 is a 1 stage or 2 stage heat thermostat It functions with air conditioning heat pumps or electric heat systems The thermostat activates the heating appliance when the room temperature is below the set heat temperatur
49. and O reversing valve on PDH heat pumps only PTAC models shall use a single stage cool single stage heat ther mostat PTHP models shall use a single stage cool two stage heat thermostat An accessory thermostat must be available from the manufacturer RT6 or equivalent The RT6 thermostat will provide temperature setpoint mode selection from cool heat and fan modes The thermostat must also allow the selection of fan speed between high and low speed Other controls accessible without removal of the chassis shall include fan cycle switch fresh air vent control and emergency heat override switch heat pump only ELECTRICAL CONNECTION All PTAC PTHP units shall come from the factory with a power cord installed All 230 208V power cords shall feature a leakage current detection device on the plug head All units shall feature a 6 pin connector for removal of the power cord The power cord shall be interchangeable to allow changes to the heater output based on the property electrical requirements GENERAL CONSTRUCTION The wall sleeve shall be constructed of 18 gauge Galvanized zinc coated steel It shall be prepared by a process where it is zinc phosphate pretreated and sealed with a chromate rinse then powder coated with a polyester finish and oven cured for durability The sleeve shall be shipped with a protective weatherboard and a structural center support and be insulated for sound absorption and thermal efficiency The grille
50. and condensate disposal and have a drain pan capable of retaining 1 72 gallons of condensate A tertiary condensate removal system shall also be incorporated for back up and shall overflow through the wall sleeve and to the outside of the building as a safeguard against damage to the interior room INDOOR AIR HANDLING SECTION The indoor air handling sec tion shall consist of a tangential blower wheel direct driven by a totally enclosed motor The air handling system shall be designed to minimize airflow noise and provide smooth and consistent airflow The indoor fan must have three fan speeds that may be selected by the user The indoor discharge grille shall be designed to maximize airflow throughout the room The grille shall be reversible to allow a change in the airflow directions The grille openings shall be sized to prevent personal injury or damage to the unit The front cover shall incorporate dual air filters conveniently mounted in the front of the unit The filters must be accessible without the removal of the front cover The filters shall be made of anti microbial material to prevent mold and bacterial growth The filters shall be washable and reusable by cleaning with water or by vacuuming The chassis shall have a built in damper capable of providing at least 75 of fresh air into the conditioned area A fine mesh screen shall filter the incoming fresh air There must be a provision for locking the damper closed to ensure
51. bor are only warranted for any unused portion of the units warranty We will not be responsible for and the user will pay for 1 Service calls to A Instruct on unit operation B Replace house fuses or correct house wiring C Clean or replace air filters D Remove the unit from its installed location when not accessible for service required E Correct improper installations 2 Parts or labor provided by anyone other than an authorized service center 3 Damage caused by A Accident abuse negligence misuse riot fire flood or acts of God B Operating the unit where there is a corrosive atmosphere containing chlorine fluorine or any damaging chemicals other than in a normal residential environment Unauthorized alteration or repair of the unit which in turn affects its stability or performance 0 Failing to provide proper maintenance and service E Using an incorrect power source F Faulty installation or application of the unit We shall not be liable for any incidental consequential or special damages or expenses in connection with any use or failure of this unit We have not made and do not make any representation or warranty of fitness for a particular use or purpose and there is no implied condition of fitness for a particular use or purpose We make no expressed warranties except as stated in this certificate No one is authorized to change this certificate or to create for us any other obligation or liability in connect
52. ction Replace the controller Replace capacitor connect the wire correctly according to the electric circuit diagram Check with a multimeter if the enclosed motor windings of compressor is with short or broken circuit or earthing If so it is needed to replace it with the same type and specifications Knock the compressor housing with a rubber bar or with a hammer padding with a wood the compressor might be shocked and run If not change the compressor 25 Refrigerant is insufficient or super abundance Adjust the quantity of the refrigerant Capillary is blocked and the suction PA Replace capillary Protector is temperature is rising activated due to overheating of The compressor can run smoothly or is stuck TW En the compressor The air discharge valve is damaged P Use the multimeter to check whether the contact point of the Protector has malfunction compressor is conducted at the timer of non subheating If it can t be conducted please replace the protector Supply voltage is abnormal Check the reason improve the power supply condition and add the regulated power supply The radiating for evaporator and condensor is Get rid of the dust on the evaporator and condensor remove Compressor not good Poor air ventilation the obstacles at the air outlet is ON OFF frequently The air conditioner capability does not match the area of the room i e so called Big system small room Reveiving distance of
53. d The weighed in charge method is applicable to all units It is the preferred method to use as itis 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 AA WARNING BURN HAZARD Proper safety procedures must be followed 2 and proper protective clothing must be worn when working with a torch oH Failure to follow these procedures could result in moderate or serious injury 3 Install a process tube to sealed system AA 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 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 CAUTION FREEZE HAZARD Pro
54. e by the differential temperature The RT6 will stop outputting when the call for heat has been satisfied With heat pumps the thermostat will not let the compressor come on for 4 minutes after it turns off This protects your compressor When the room temperature is greater than the set cool temperature by the differential temperature the cooling device is activated The RT6 will stop outputting when the call for cooling is satisfied The thermostat will not let the compressor come on for 4 minutes after it turns off This protects your compressor The RT6 has three possible operating modes OFF Heat and Cool mode In off mode the thermostat will not turn on heating or cooling devices The manual fan can be turned on in all operating modes using the fan button In heat mode the thermostat controls the heating system In the cool mode the thermostat controls the cooling system Button Functions O3 ve Down button SYStem left Ce TL FAN right UP Used to increase the set temperatures and to adjust configuration settings DOWN Used to decrease the set temperatures and to adjust configuration settings SYS left Used to change from OFF HEAT and COOL modes FAN right Used to turn on and off the indoor fan Operating Modes There are four possible operating modes for the RT6 Off Heat and Cool modes are accessed by pressing the SYS left button OFF Mode wp
55. e If the LCDI device trips and Typical LCDI Devices OO WARNING TEST BEFORE EACH USE 1 PRESS RESET BUTTON 2 PLUG LCDI INTO POWER WARNING RECEPTACLE TEST BEFORE EACH USE 3 PRESS EE 1 PRESS RESET BUTTON RESET LD 2 PLUG LCDI INTO POWER POP RECEPTACLE 4 PRESS TEST BUTTON 3 PRESS TEST BUTTON FOR RESET BUTTON SHOULD DO NOT USE IF ABOVE TEST POP UP FAILS 4 PRESS TEST BUTTON WHEN GREEN LIGHT IS ON FOR US IT IS WORKING PROPERLY DO NOT USE IF ABOVE TEST FAILS WHEN GREEN LIGHT IS ON IT IS WORKING PROPERLY 15 20A LCDI Device 30A LCDI Device FRP014 15 16 Weil Power Cord Kit Voltage Receptacle os __ 5 2 roe 59 92e Electrical Wiring for 265 Volt Models Power Cord Installation All 265V PTAC PTHP units come with a factory installed non LCDI power cord for use in a subbase If the unit is to be hard wired refer to the instructions below NOTE It is recommended tha
56. e had 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 impor tant of these readings Arunning 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 me ter If the compressor does not start the reading will indicate the locked rotor amperage L R A Overloads The compressor is equipped with an external 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 Heat generated within the compressor shell usually due to recycling of the motor is slow to dissipate It may take any where from a few minutes to several hours for the overload to reset Checking the Overload AA WARNING ELECTRIC SHOCK HAZARD Turn off electric power before
57. e opening Use supplied screws to mount thermostat base to wall 10 Insert stripped labeled wires in matching wire terminals o e CAUTION sure exposed portion of wires does not touch other wires 11 Gently tug wire to be sure of proper connection Double check that each wire is connected to the proper terminal 12 Turn on power to the system at the main service panel 13 Configure thermostat to match the type of system you have 14 Replace cover on thermostat by snapping it in place 15 Test thermostat operation as described in Testing the Thermostat Wiring Diagrams Heat Cool Systems Heat pump with electric backup Transformer Transformer a Ces Auxiliary Heat D em High Fan M au I lt gt lt O UJ gt 0 O zx ZU rm Terminal Designator Descriptions 24 VAC hot 24 VAC common O B Configurable Cool active reversing valve Freidrich PTHP B Heat active reversing valve Freidrich Vert I Pak Kuhl HP Y 1st stage cool 1st stage heat for heat pumps W 1st stage heat for non heat pump systems auxiliary heat for HP systems GL Low fan GH High fan RT6 Output Chart Configuration 157 Cool 157 Heat 2M0 Heat Heat Cool and single stage HP models ELC Y G W N A PDH PTHP models only HP O Config Y G O Y G G
58. e to cover all electrical components to protect them from water or spray 3 Decorative Front The decorative front and discharge air grille may be cleaned with a mild soap or detergent Do NOT use solvents or hydrocarbon based cleaners such as acetone naphtha gasoline benzene etc to clean the decorative front or air discharge grilles Use a damp not wet cloth when cleaning the control area to prevent water from entering the unit and possibly damaging the electronic control 4 Fan Motor amp Compressor The fan motor amp compressor and are permanently lubricated and require no additional lubrication 5 Wall Sleeve Inspect the inside of the wall sleeve and drain system periodically annually or semi annually and clean as required Under extreme conditions more frequent cleaning may be necessary Clean both of these areas with an antibacterial and antifungal cleaner Rinse both items thoroughly with water and ensure that the drain outlets are operating properly 39 40 TROUBLESHOOTING CHART COOLING REFRIGERANT SYSTEM DIAGNOSIS COOLING PROBLEM Low Load Conditions Low Air Flow Across Indoor Coil Refrigerant System Restriction Undercharged PROBLEM High Load Conditions High Air Flow Across Indoor Coil Reversing Valve not Fully Seated Overcharged Defective Compressor PROBLEM Low Load Conditions Refrigerant System Restriction Reversing Valve not Fully Seated Undercharged System Defective
59. eck valve from the opposite direction closing 34 REVERSING VALVE DESCRIPTION OPERATION AA 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 PTAC 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 A and ports of the pilot valve A third capillary is a 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 TESTING THE COIL A WARNING ELECTRIC SHOCK HAZARD Unplug and or disconnect all electrical power to the unit before performing maintenances or service i
60. ectric Heat Data CT 77 vame mm zm x 3 _ soo e300 e 10230 currens o mz wa ne o na o 168 156 ss ranon orcum rosea w m m s 20 Electric Heat Data PDEO9KO PDE PDHO9K PDE PDHO9R vame me m m zo oe _ 2 _ Trevis evox seo e300 17060 1360 10205 17000 Peano cunrenromesy 2 2 zs as zs Punimuwormcurrawpacry sz we zz mo 5 m m s Electric Heat Data __________ vame __________ m m zo _ emer o seo e200 17060 13060 0621 10205 17000 Peano curren ames o ro mz 2 zs ms zs 75 ma we 168 zz mo PeraNcoRcuTFusE 5 15 m m s Electric Heat Data 15 15 15 vame _________ _2 0 me zm m zo 2 _ Tes 92 12 ms re na ma 98 ws MINIMUM CIRCUIT AMPACITY BRANCH CIRCUIT FUSE AMPS EN
61. edures result in serious injury or death 8 Pressurize with a combination of R 410A and nitrogen and leak test all connections with leak detector capable of detecting HFC Hydrofluorocarbon refrigerant Recover refrigerant nitrogen mixture 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 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 10 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 NOTICE NEVER under any circumstances charge a rotary compressor through the LOW side Doing so would cause permanent damage to the new compressor SPECIAL PROCEDURE IN THE CASE OF MOTOR COMPRESSOR BURNOUT AA WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation Failure to do so may result in personal injury or death AA
62. elay only operate in fan cycle mode Fan continuous mode 15 used to keep constant airflow circulation in the room during all times the unit is ON Fan cycle will conserve energy by only operating the fan while the compressor or electric heater is operating The ability to set the fan cycling condition independently between heating and cooling mode will increase user comfort by allowing the choice of only constantly circulating air in the summer or winter time Unlike other PTAC brands that only allow one selection In the event of a compressor failure in heat pump mode the compressor may be locked out to provide heat through the resistance heater This feature ensures that even in the unlikely event of a compressor failure the room temperature can be maintained until the compressor can be serviced All Friedrich digital PTACs have low voltage terminals ready to connect a desk control energy manage ment system Controlling the unit from a remote location like the front desk can reduce energy usage and requires no additional accessories on the PTAC unit The frost sensor protects the compressor from damage in the event that airflow is reduced or low outdoor temperatures cause the indoor coil to freeze When the indoor coil reaches 30 F the compressor is disabled and the fan continues to operate based on demand Once the coil temperature returns to 45 F the compressor returns to operation The new Friedrich PD series units feature an indoor f
63. en brazing a reversing valve into the system it is of extreme importance that the temperature of the valve does not exceed 250 F 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 AA 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 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 hav
64. 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 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 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 surrou
65. er the power wires have been removed Test the limit switch for continuity across its input and output terminals Test below the limit switch s reset temperature DRAIN PAN VALVE During the cooling mode of operation condensate which collects in the drain pan is picked up by the condenser 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 condenser 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 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 b
66. eration 29 Sealed Refrigeration System Repairs 30 Refrigerant Charging 31 Method Of Charging eese 31 Undercharged Refrigerant Systems 31 32 Overcharged Refrigerant Systems 32 Restricted Refrigerant Systems 32 Capillary Tube Systems Check Valve 33 Reversing Valve Description Operation 34 Testing M 34 Checking Reversing Valves 34 35 Reversing Valve Touch Testing Heating Cooling Cycle 35 Procedure For Changing Reversing Valve 35 36 Compressor Checks EE 36 Locked Rotor Voltage 36 Single Phase Connections 36 Determine Locked Rotor Voltage 36 Locked Rotor Amperage Test 36 Single Phase Running amp Locked Rotor Amperage 36 Checking the Overload 36 External Overload datore us 37 Compressor Single Phase Resistance Test 37 Compressor Replacement 38 39 Routine Maintenance un 39 Troubleshooting Charts 40 41 Wiri
67. h have malfunction Check the circuit and connect the wire according to the electric diagram attached to the unit Replace the transformer Replace the controller First press the AUTO button of the manual switch If the button is normal recheck if the installation and connection of head and lines are correct If correct replace receiving head or remote controller Lower the temperature of the thermostat or increase the temperature when heating Clean the filter Clean the dust accumulated on the surface of the heat exchanger Set the fan speed at high or medium fan speed 1 Wrong wire connection 2 whether the capacitor damaged or not 3 the motor has malfunction Connect the wire correctly or replace those parts which has malfunction cooling or heating Call for fan motor but fan motor will not come on Compressor isn t running controller is with output Refrigerant is insufficient or leaking Refrigeration system is blocked Too much refrigerant The efficiency of the compressor is low Condenser can t discharge smoothly At the time of heating the electric heater can t run Outdoor temperature is too high Whether the cooling heating load is suitable The air tightness in room is not good People come in and go out frequently There are heating devices in the room when is cooling The motor winding is of broken circuit or short Suppl
68. he air quantity over the evaporator coil is correct Icing of the evaporator will not be encountered because the refrigerant Will boil later if at all Gauges connected to system will usually have higher head pressure depending upon amount of over charge Suction pressure should be slightly higher Suction Pressure Noticeably High Compressor Slugged with Refrigerant Pressure Slightly Higher Indoor Coil Overcharged System 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 the cooling mode Suction Pressure Outdoor Coll Deep Vacuum Compressor Gauges will not equalize with unit shut off Completely Restricted System Reversing Valve Accumulator Head J Pressure Suction Pressure Lower Indoor Coil Lower Outdoor Coil Gauges may equalize very slowly Partially Restricted System HERMETIC COMPONENTS CHECK AA 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 METERING DEVICE Capillary Tube Systems All units are equipped with capillary
69. indications that the slide is in the mid the discharge pressure replace the valve position is if all three tubes on the suction side of the valve are hot after a few minutes of running time Dented or damaged valve body or capillary tubes can prevent the main slide in the valve body from shifting NOTE A condition other than those illustrated above and on Page 31 indicate that the reversing valve is not shifting If you determing this is the problem replace the reversing properly Both tubes shown as hot or cool must be the same valve corresponding temperature After all of the previous inspections and checks have been Procedure For Changing Reversing Valve made and determined correct then perform the Touch Test on the reversing valve A WARN G HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure FROM OUTDOOR COIL COMPRESSOR SUCTION Proper safety procedures must be followed and proper protective clothing must be worn HOT 7 BOTH THE SAME Ag EN when working with refrigerants TEMPERATURE Failure to follow these procedures could result in serious injury or death NOTICE 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 m
70. ing 3 Close to or in the direct airflow of supply registers and or return air grilles 4 Any areas with poor air circulation such as a corner behind a door or an alcove Remote Thermostat and Low Voltage Control Connections Remote Thermostat All Friedrich PD model PTAC units are factory configured to be controlled by either the chassis mounted Smart Center or a 24V remote wall mounted thermostat The thermostat may be auto or manual changeover as long as the control configuration matches that of the PTAC unit NOTE All PDE models require a single stage cool single stage heat thermostat All PDH models require a single stage cool dual stage heat thermostat with an O reversing valve control The Friedrich RT6 thermostat can be configured for either model To control the unit with a wall mounted thermostat follow the steps below 1 2 B5 Unplug the unit before doing any work With the front cover removed locate the dip switches located below the Smart Center control panel Switch Dip switch 2 to the up on position Remove the low voltage terminal block from the unit Connect the corresponding terminals from the wall thermostat to the terminal block Replace the terminal block on the unit Restore power to the unit The unit is now controlled by the wall thermostat only If the accessory escutcheon kit PDXRTA is to be used install it over the existing control panel
71. ion with this unit Any implied warranties shall last for one year after the original purchase date Some states and provinces do not allow limitations on how long an implied warranty or condition lasts so the above limitations or exclusions may not apply to you The provisions of this warranty are in addition to and not a modification of or subtraction from the statutory warranties and other rights and remedies provided by law Performance of Friedrich s Warranty obligation is limited to one of the following methods 1 Repair of the unit 2 A refund to the customer for the 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 In case of any questions regarding the provisions of this warranty the English version will govern 11 10 49 50 2011 PTAC EXPLODED VIEW ef 1 Co O A len jojo A Joo o o o e o Joo o o v vw IN gt gt LE gt N la IN gt 0 3 o 5 o A IN o 2011 PTAC PARTS LIST PDE MODELS resh Air Door Cable esh Air Door Filter resh Air Do
72. ll safety messages This is a safety Alert symbol This symbol alerts you to potential hazards that can kill or hurt you and others All safety messages will follow the safety alert symbol with the word WARNING or CAUTION These words mean A WARN 5 You 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 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 Capacitors even when disconnected from the electrical power source retain an electrical charge potential capable of causing electric shock or electrocution 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
73. nd life expectancy the following maintenance procedures should be performed on a regular basis 1 Air Filter To ensure proper unit operation the air filters should be cleaned at least monthly and more frequently if conditions warrant The unit must be turned off before the filters are cleaned To remove the air filters grasp the top of the filter and lift out of the front cabinet Reverse the procedure to reinstall the filters Clean the filters with a mild detergent in warm water and allow them to dry thoroughly before reinstalling 2 Coils amp Chassis 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 The indoor coil and outdoor coils and base pan should be inspected periodically annually or semi annually and cleaned of all debris lint dirt leaves paper etc as necessary Under extreme conditions more frequent cleaning may be required Clean the coils and base pan with a soft brush and compressed air or vacuum A pressure washer may also be used however you must be careful not to bend the aluminum fin pack Use a sweeping up and down motion in the direction of the vertical aluminum fin pack when pressure cleaning coils Note It is extremely important to insure that none of the electrical and or electronic parts of the unit get wet Be sur
74. nding 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 Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for leaks flushing etc sure to follow all safety precautions and to use proper protective safety aids such as gloves safety glasses clothing etc e Failure to follow proper safety procedures and or these warnings can result in serious injury or death MECHANICAL HAZARDS e 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 careful when handling and working around exposed edges and corners of sleeve chassis and other unit components especially the sharp fins of the indoor and outdoor coils e Use proper and adequate protective aids such as gloves clothing safety glasses etc e Failure to follow proper safety procedures and or these warnings can result in serious injury or death PROPERTY DAMAGE HAZARDS FIRE DAMAGE HAZARDS e Read the Installation Operation Manual for this air conditioning unit prior to operating e Use air conditioner on a single dedicated circuit within the specified amperage rating e Connect to a properly grounded outlet only e Donot remove ground prong of plug Do n
75. ng Diagrams for Wall Mounted Thermostats 42 43 Winnog Ri e gn E 42 44 RT6 Installation Operation and Application Guide 45 46 Thermistors Resistance Values 47 48 ebe EE 49 2011 PTAC Exploded View 50 2011 PTAC Parts List PDE Models 51 2011 PTAC Parts List PDH Models 52 IMPORTANT SAFETY INFORMATION The information contained in this manual is intended for use by a 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 a
76. ng can also be caused by insufficient air over the evaporator 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 A check of the amperage drawn by the compressor motor should show a lower reading Check the Unit Specification 31 32 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 Compressor Reversing CT Valve lat MENU Head Pressure Lower Indoor Coil Compressor Running Quieter than Normal Amps Lower Undercharged System Overcharged Refrigerant Systems Compressor amps will be near normal or higher Noncondensables can also cause these symptoms To confirm remove some of the charge if conditions improve system may be overcharged If conditions don t improve Noncondensables are indicated Wheneveranoverchargedsystemisindicated alwaysmake sure that the problem is not caused by air flow problems 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 ci
77. ng off will put the unit into cooling mode Adjust the temperature readout to the desired room temperature and the unit will cycle the compressor on and off to maintain a comfortable room The compressor will come on anytime that the room temperature is 1 8 F above the desired temperature The fan operation is dependent on the fan mode selected either continuous or cycling See Fan Mode for fan cycle control Heating Mode Pressing the Heat button while the unit is in any mode including off will put the unit into heating mode Heat Pump Models PDH When the Heat button is pressed initially the unit will energize the electric resistance heat to quickly bring the room to the set temperature When the desired room temperature falls 1 8 F below the desired set temperature the unit will cycle the compressor on and operate as a heat pump to maintain the room temperature while running more efficiently than resistance heat only models If the room temperature should fall more than 5 F from the set temperature the unit will run the resistance heater The fan operation is dependent on the fan mode selected either continuous or cycling Dip switch 3 controls the fan mode see page 23 for setting When the outdoor coil temperature falls below 30 F for more than 2 min utes the unit will operate the resistance heaters and not the compressor When the outdoor coil temperature reaches 45 F the compressor will be allowed to operate
78. nspections 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 ground if there is coil is grounded and must be replaced If coil tests okay reconnect the electrical leads Make sure coil has been assembled correctly 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 before valve can shift PILOT SOLENOID VALVE FROM VALVE DISCHARGE 4 WAY REVERSING VALVE 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 the reversing valve can shift AA WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure
79. ny winding is open or grounded replace the motor ELECTRIC SHOCK HAZARD Turn off electric power before servicing Discharge capacitor with a 20 000 Ohm 2 Watt 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 5 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 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 co
80. oderate to serious property damage 1 Install Process Tubes Recover refrigerant from sealed system PROPER HANDLING OF RECOVERED REFRIGERANT ACCORDING TO EPA REGULATIONS BOTH THE SAME 2 IS REQUIRED TEMPERATURE OOL 2 Remove solenoid coil from reversing valve If 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 Reversing Valve in Cooling Mode 5 Remove solenoid coil from new valve 36 6 Protect new 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 AA 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 22 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 Wh
81. ody 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 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 PTAC 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
82. om terminals common to run C to R the system Moisture is extremely destructive to a refrigerant system Add values C to S and C to R together and check resistance from start to run terminals CG to Resistance S to R should equal the total of C to S and C to 37 38 COMPRESSOR REPLACEMENT Recommended procedure for compressor replacement AA 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 1 Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing AA 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 2 Recover all refrigerant from the system 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 AA WARNING HIGH TEMPERATURES Ex
83. or Lever ront Panel Assy Complete ront Panel clip eater eater Wiring Block Board nner Wall ass unction box unction lid ower cover of Fresh Air Door Leve elay board ic board otor Bracket Indoor verload Protector roud Brace mperature Sensor erminal Board Input power hermal baffle op Cover Plate Sub Ass ransformer ube Thermistor C r e lt 5 TI il i iring Terminal 2 position 24VAC iring Terminal 7 position 24VAC r r 8 5 5 S e P 8 o lt S TI 3 3 5 2 gt 9 2 lt 1 1 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 3 6870013 68700139 68700148 68700144 68700128 68700074 68700126 68700115 68700120 68700117 68700150 68700105 68700103 68700123 68700052 68700119 68700110 68700156 68700132 68700116 68700112 68700153 68700149 68700154 68700155 68700046 PDEO7K3SF co oo LL LL LL LL LL LL LL GA o GA U 0 e e Y Z X O O N N LO LO Description Part amp 2 68700138 1 68700055 1 68700152 1 68700096 1 68700127 1 68700147 1 68700134 1 68700118 1 68700100 1 68700113 68700091 1 68700085 1 68700124 1 68700125 68700050 1 68700081 1 68700135 1 68700145 1 68700158 1 68700129 1 68700130 1 68700136 1 6870013 6870014 1 6870012 6870015 6870002 1 6870
84. ories PDXWSEXT PXGA PXAA PXBG PXSC PXDR10 PXSB PDXRTA PXSE PDXDAA PDXDEA 8 WALL SLEEVE Galvanized zinc coated steel is prepared in an 11 step process then powder coated with a polyester finish and cured in an oven for exceptional durability The wall sleeve is insulated for sound absorption and thermal efficiency 16 High x 42 Wide x 13 3 4 Deep DEEP WALL SLEEVE EXTENSION For use when the wall is thicker than 13 1 4 deep The wall sleeve may be special ordered through your Sales Representative and will be cut to your specific depth require ments PDXWSEXT GRILLE Standard stamped aluminium anodized to resist chalking and oxidation ARCHITECTURAL GRILLES Consist of heavy gauge 6063 T5 alumi num alloy PXAA Clear extruded aluminum PXBG Beige acrylic enamel PXSC Also available in custom colors CONDENSATE DRAIN KIT Attaches to the bottom of the wall sleeve for internal draining of condensate or to the rear wall sleeve flange for exter nal draining Recommended on all units to remove excess condensate Packaged in quantities of ten DECORATIVE SUBBASE Provides unit support for walls less than six inches thick Includes leveling legs side filler panels and mount ing brackets for electrical accessories Accepts circuit breaker power disconnect switch or conduit kit DIGITAL REMOTE WALL THERMOSTAT Single stage cool single stage heat for PDE models or single stage cool dual
85. ot cut or modify the power supply cord e Do not use extension cords with the unit e Failure to follow these instructions can result in fire and minor to serious property damage WATER DAMAGE HAZARDS e Improper installation maintenance or servicing of the air conditioner unit or not following the above Safety Warnings can result in water damage to personal items or property e Insure that the unit has a sufficient pitch to the outside to allow water to drain from the unit e Do not drill holes in the bottom of the drain pan or the underside of the unit e Failure to follow these instructions can result in 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 manuals provided with each unit This service manual was written to assist the professional HVAC service technician to quickly and accurately diagnose and repair any malfunctions of this product This manual therefore will deal with all subjects in a general nature i e All text will pertain to all models IMPORTANT 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 General Product Features DIAMONBLUE TECHNOLOGY DIGITALDEFROST THERMOSTAT INSTANT HEAT HEAT PUMP MODE EVEN HEAT MONITORING SEPARATE HEAT COOL FAN CYCLE CONTROL EMERGENCY
86. per 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 AA WARNING BURN HAZARD Proper safety procedures must be followed 2 and proper protective clothing must be worn when working with a torch DH 224 Failure to follow these procedures could result in moderate or serious injury 8 Crimp the process tube and solder the end shut Undercharged Refrigerant Systems An undercharged system will result in poor performance low pressures etc in both the heating and cooling cycle 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 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 charge Intermittent frosting and thawing of the evaporator is another indication of a low charge however frosting and thawi
87. rculate 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 compressor 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 specification Improper air flow over the evaporator coil may indicate some of the same symptoms as an over charged system An overcharge can cause the compressor to fail since it would be slugged with liquid refrigerant The charge for any system is critical When the compressor is noisy suspect an overcharge when you are sure that t
88. res with the enclosed wire labels before removing wires After labeling wires remove wires from wire terminals Remove existing thermostat base from wall Refer to the following section for instructions on how to install this thermostat ooh ob To Install Thermostat ELECTRICAL SHOCK HAZARD Turn off power at the main service panel by removing the fuse or switching the appropriate circuit breaker to the OFF position before removing the existing thermostat IMPORTANT Thermostat installation must conform to local and national building and electrical codes and ordinances Note Mount the thermostat about five feet above the floor Do not mount the thermostat an outside wall in direct sunlight behind a door or in an area affected by a vent or duct 1 Turn off power to the heating and cooling system by removing the fuse or switching the appropriate circuit breaker off 2 Toremove cover pull gently at the seam at the top Put thermostat base against the wall where you plan to mount it Be sure wires will feed through the wire opening in the base of the thermostat Mark the placement of the mounting holes Set thermostat base and cover away from working area Using a 3 16 drill bit drill holes in the places you have marked for mounting Use a hammer to tap supplied anchors in mounting holes Align thermostat base with mounting holes and feed the control wires through slit in thermal intrusion barrier and into wir
89. start stop fan delay only operate in fan cycle mode Fan continuous mode 15 used to keep constant airflow circulation in the room during all times the unit is ON Fan cycle will conserve energy by only operating the fan while the compressor or electric heater is operating Dip switch 3 4 controls the fan mode see page 23 for setting 21 22 Digital Control User Input Configuration The adjustable control dip switches are located at the lower left hand portion of the digital Smart Center The inputs are only visible and accessible with the front cover removed from the PTAC Dip Switch Setting 1 Emergency Heat Override Switch 1 In the unlikely event of a compressor failure a heat pump unit may be switched to operate in only the electric heat mode until repairs can be made Moving Dip Switch 1 to ON Electronic Temperature Limiting Switches 5 6 The digital control is set from the factory to allow a temperature range between 61 F and 86 F in both heating and cooling mode Dip Switches 5 6 can be used to set high and low limits for either heating both cooling both or both 2 Wall Thermostat Switch 2 In order to enable the wall thermostat move Dip Switch to TOI ME acl AEE EE chart below shows the available electronic limiting ranges 3 Fan Cycle Control Switch 3 4 All PTACs are shipped from the factory with Dip Switch 3 4 in the OFF position In this position the cooling fan cycle
90. t the PXSB subbase assembly the PXCJA conduit kit or equivalent be installed on all hardwire units If installing a flush floor mounted unit make sure the chassis can be removed from the sleeve for service and maintenance A WARNING Electrical Shock Hazard Turn off electrical power before service or installation ALL electrical connections and wiring MUST be installed by a qualified electrician and conform to the National Code and all local codes which have jurisdiction Failure to do so can result in property damage personal injury and or death To install the line voltage power leads and conduit to chassis follow the instructions below PXCJA Conduit Kit is required with this setup 1 Follow the removal process of the chassis s junction box listed in the installation manual Figure 25 step 2 page 19 2 Prepare the 265V or 230V power cord for connection to the chas sis power cord connector by cutting the cord to the appropriate length Figure 15 Power cord harness selection shown on Table above TRIM HARNESS TO LENGTH TO CHASSIS JUNCTION 4 0 IN 18 0 IN EXPOSE WIRES 1 0 IN STRIP WIRE ENDS 0 5 IN TO WALL JUNCTION 2 Route the cut ends of harness through the conduit connector assembly and flex conduit sleeve Be sure to use the supplied conduit bushing to prevent damage to the cord by the conduit The cord should pass through the Locknut Spacer Chassis Junction
91. te refrigerant charge measuring device such as a Balance Scales 1 2 oz accuracy b Charging Board 1 2 oz accuracy AA 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 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 Proper refrigerant charge is essential to proper unit opera tion 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 ser vicing will insure that the unit is functioning as designed and that its compressor will not be damaged 9 High Pressure Gauge 0 750 Ibs 10 Low Pressure Gauge 30 200 16 11 Vacuum Gauge 0 1000 microns 12 Facilities for flowing nitrogen through refrigeration tubing during all brazing processes EQUIPMENT MUST BE CAPABLE OF 1 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 Too
92. treme 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 NOTICE 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 3 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 4 Carefully pour a small amount of oil from the suction stub of the defective compressor into a clean container 5 Using acid test kit one shot or conventional kit test the oil for acid content according to the instructions with the kit 6 If any evidence of a burnout is found no matter how slight the system will need to be cleaned up following proper procedures 7 Install the replacement compressor AA 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 proc
93. units Be sure that branch circuit or general purpose outlet is grounded The field supplied outlet must match plug on service cord and be within reach of service cord Refer to Table 1 for proper receptacle and fuse type Do NOT alter the service cord or plug Do NOT use an extension cord The field supplied outlet must match plug on service cord and be within reach of RECEPTACLE service cord Refer to Table 1 for proper receptacle and fuse type Do NOT alter the service cord or plug Do NOT use an extension cord Use recommended wire size given in Table 2 and install a single branch circuit All wiring must comply with local and national codes NOTE Use copper conductors only POWER CORD INFORMATION 230 208V MODELS ONLY All Friedrich 230 208V PTAC units are shipped from the factory with a Leakage Current Detection Interrupter LCDI equipped power cord The LCDI device meets the UL and NEC requirements for cord connected air conditioners effective August 2004 To test your power supply cord 1 Plug power supply cord into a grounded 3 prong outlet 2 Press RESET 3 Press TEST listen for click Reset button trips and pops out 4 Press and release RESET listen for click Reset button latches and remains in The power supply cord is ready for operation NOTE The LCDI device is not intended to be used as a switch Once plugged in the unit will operate normally without the need to reset the LCDI devic
94. unter 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 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 FAN MOTOR COMPRESSOR LE QO RUN CAPACITOR 27 28 COMPONENTS TESTING Continued HEATER ELEMENTS AND LIMIT SWITCHES SPECIFICATIONS All heat pumps and electric heat models are equipped with a heating element and a limit switch bimetal ther mostat The limit is in series with the element and will interrupt the power at a designed temperature Should the blower motor fail filter become clogged or air flow be restricted etc the high limit switch will open and interrupt the power to the heater before reaching an un safe temperature condition TESTING THE HEATING ELEMENTS AND LIMIT SWITCHES AA 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 heating elements can be made with an ohmmeter or continuity tester across the terminals aft
95. versing Valve Stuck Replace the Reversing Valve 42 REMOTE WALL THERMOSTAT WIRING DIAGRAM COOL WITH ELECTRIC HEAT LEGEND FOR T STAT WIRING HARNESS 24 VAC Power From Unit Coil for Cooling Call for Heat Reversing Valve Energized in cooling mode Call for Low Fan Call for High Fan RT6 Two Speeds Fan T Stat Field Provided Field Wiring Electronic THERMOSTAT CONNECTIONS C ontrol Rebeet vm I l l r4 D E ds E E 1 E I mo r I I I I Disk control or Auxillary fan REMOTE WALL THERMOSTAT WIRING DIAGRAM HEAT PUMP WITH ELECTRIC HEAT LEGEND FOR T STAT WIRING HARNESS 24 VAC Power From Unit Coil for Cooling Call for Heat Reversing Valve Energized in cooling mode L Call for Low Fan GH Call for High Fan RT6 Two Speeds Fan T Stat Field Provided Field Wiring Electronic Control n SE THERMOSTAT CONNECTIONS g E z o b 4 4 deeg l r E Disk control or Auxillary fan 43 44 91 OVA 5VDC 5VDC 5VDC Thermistors Indoor Outdoor Logic Board Display Control Board WIRING DIAGRAM RER RES D RELAY COMM ____ tT LL Lj L2TB 212 5 L1TB
96. without electric heat PDH Heat Pump with electric heat All units shall be factory assembled piped wired and fully charged with R 410A All units shall be certified in accordance with ARI Standard 310 for air conditioners and ARI standard 380 for heat pumps Units shall be UL listed and carry a UL label All units shall be factory run tested to check operation and be Friedrich or equivalent The basic unit shall not exceed 16 high x 42 wide Overall depth of the unit from the rear of the Friedrich wall sleeve to the front of the decorative front cover shall not exceed 21 The unit shall be designed so that room intrusion may be as little as 7 72 Installations in walls deeper than 13 74 may be accomplished with the use of a deep wall sleeve PDXWSEXT Unit shall draw in ambient air through both sides of an outdoor architectural louver or grille measuring 42 wide x 16 high and shall exhaust air out middle portion of the louver The architectural louver and wall sleeve shall be designed so that the louver may be installed from the inside of the building REFRIGERATION SYSTEM The refrigeration system shall be her metically sealed and consist of a rotary compressor that is externally mounted on vibration isolators no smaller than 1 3 8 dia x 1 72 high condenser and evaporator coils constructed of copper tubes and aluminum plate fins and capillaries as expansion devices Unit shall have a fan slinger ring to increase efficiency
97. y voltage is unstable Wrong wire connection The fan s capacitor is broken circuit or the built in temperature limiter device in open circuit due to overheat The controller has malfunction The compressor capacitor is broken wrong wire connection The compressor s motor is burned out The compressor is jammed or blocked Check leakage carry out vacuum pumping after repairing leakage and charge refrigerant according to requirements Check whether the system is blocked by observing the condensation of the evaporator and the pressure value of the high pressure manometer and then take measures to deal with the system Release the redundant refrigerant in system Replace the compressor Get rid of the obstacle 1 the wire is loosened 2 thermal fuse is broken 3 temperature limiter is damaged 4 electric heater is damaged 5 controller is broken correct the wore correctly or replace those parts which has malfunction You can install the rain proof and sun proof board If the cooling air is still insufficient you are suggested to replace the A C Check the preset cooling heating load Keep the air tightness well Try not to use the electic appliances with a large quantity of heat Check the reason and correct it Check the circuit and connect the wire correctly according to the electic circuit diagram Replace fan s capacitor with the same mode and specification Replace those parts which has malfun
98. ystem Set for heat pump non heat pump reversing valve operation System Setting Reversing Valve Setting Friedrich Models Heat Pump HP O Energized in Cooling PDH PTHP Only Heat Cool and Single Stage ELC VEA PDE PTAC Kuhl Heat Pump Only Press the up or down button to select E if Press the right button to advance to the next screen 2 Temperature Scale F or C Choose Fahrenheit or Celsius Press the up or down button to select Press the right button to advance to the next screen FE 3 15 Stage Temperature Differential 1 F to 5 F 0 5 C to 2 5 C Set the number of degrees between your setpoint temperature and your turn on temperature Press the up down button to set differential value Press the right button to advance to the next screen emm 4 2 Stage Temperature Differential 1 F to 5 F 0 5 C to 2 5 C For HP 0 only Set the number of degrees between when stage 1 turns on and when stage 2 turns on Press the up or down button to set differential value Press the right button to advance to the next screen 02 dff 5 Staged Off Outputs For HP 0 only Select whether the outputs for heating and cooling are staged off independently or are satisfied simultaneously 1 outputs staged off independently 50 e 0 outputs off simultaneously Press the up or down button to set Press the right button to adv

Friedrich R410A User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents