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Friedrich FRESHAIRE PVH09K3FA, Service & Parts Manual, Page: 3 / 109

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Summary of Contents for FRESHAIRE PVH09K3FA

Page 1: ...1 Service Parts Manual PTAC FRESHAIRE Standard Chassis Models PVH12K3FA PVH12K3FB PVH12R3FA PVH12R3FB 9K 12K 94131400_01 PVH09K3FA PVH09K3FB PVH09R3FA PVH09R3FB...

Page 2: ...tection Functions 23 System Configuration Fresh Air Vent Control 25 Digital Control User Input Configuration 28 Settings Detailed Configurations 29 Refrigeration Sequence Of Operation 30 Refrigerant S...

Page 3: ...0 Check Indoor Fan Motor 81 Check Outdoor Fan Motor 81 Check Fan Motor Capacitors 82 Main PCB logic Board Connector Identification 83 Power PCB Power Board Connector Identification 84 TROUBLESHOOTING...

Page 4: ...ion technicians should service this equipment R410A systems operate at higher pressures than R22 equipment Appropriate safe service and handling practices must be used Only use gauge sets designed for...

Page 5: ...e 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 troublesho...

Page 6: ...ponents especially the sharp fins of the indoor and outdoor coils Use proper and adequate protective aids such as gloves clothing safety glasses etc Failure to follow proper safety procedures and or t...

Page 7: ...Spackling or applying joint compound Sanding or grinding Moulding or trimwork NOTICE Operatingtheequipmentduringanyphaseofactiveconstructionnotedabovecanvoid theequipment swarranty alsoleadingtopoorp...

Page 8: ...quickly and accurately diagnose and repair malfunctions Installation procedures are not given in this manual They are given in the Installation and Operation Manual which can be aquired on the Friedri...

Page 9: ...R MANUFACTURING LOCATION NUMERIC SEQUENCE FIRST UNIT OF EACH MONTH 00001 17 12 M 00001 Refer to the Chart below for Serial Numbers beginning with an Alpha Sequence A K A M 00001 LJ 2009 AE 2015 AK 201...

Page 10: ...ties valuable time when diagnosing running problems ELECTRONIC TEMPERATURE LIMITING By limiting the operating range the property can save energy by eliminating max cool or max heat situ ations common...

Page 11: ...PTAC unit INDOOR COIL FROST SENSOR 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...

Page 12: ...1 4 1 9 1 23 2 43 Sensible Heat Ratio 80 78 82 7 73 7 ELECTRICAL DATA Voltage 1 PHASE 60 Hz 230 208 230 208 265 265 Operational Voltage Range 253 187 253 187 292 239 292 239 Current Amps 4 4 4 5 4 5...

Page 13: ...13 SPECIFICATIONS Figure 205 Chassis Specs Unit inch 21 1 2 10 42 40 16 E Figure 206 Typical Unit Components and Dimensions...

Page 14: ...Refer to Table 1 for proper receptacle and fuse type Do NOT alter the service cord or plug Do NOT use an extension cord All Friedrich 230 208V PTAC units are shipped from the factory with a Leakage Cu...

Page 15: ...D 230 208 20 NEAM 6 20r PDE PDH09K 2 5 PXPC23015A 230 208 15 NEMA 6 15r 3 5 PXPC23020A STD 230 208 20 NEMA 6 20r 5 0 PXPC23030 230 208 30 NEMA 6 30r PDE PDH12K 2 5 PXPC23015A 230 208 15 NEMA 6 15r 3 5...

Page 16: ...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 st...

Page 17: ...tion Once the compressor starts the compressor won t stop with the change of the indoor temperature Once the compressor stops it can only start after a 3 mins delay The compressor can stop immediately...

Page 18: ...ontinuously for 90 minutes and T3 32 F the unit will enter defrost stage Indoor fan will shut down After the defrosting cycle is finished the unit turns to E heating for the first cycle to heat up qui...

Page 19: ...it indoor fan when Dip Switch 1 is set to ON Dip Switch 2 is se to Cycle FA fan runs continuously when Dip Switch 1 is set to ON Dip Switch 2 is set to Continuous Relationship Between Inputs and Outpu...

Page 20: ...w low Auto Auto low NO NO High High OFF High OFF low low low Auto Auto OFF YES High High High low low low Auto Auto OFF Relationship Between Inputs and Output by 12V Wall Thermostat INPUTS OUTPUT Fres...

Page 21: ...indicating that the system has entered the advanced operation status COOL key is used to switch parameter code and parameter value or keys are used to switch parameter code or set parameter value ON...

Page 22: ...ey Display d1 Step 9 short press key Display d2 Step10 short press HEAT key Display 32 Step11 short press key twice Display 30 setting d2 has finished Step12 short press HEAT key Display d2 Step13 sho...

Page 23: ...h and condenser coil temperature reaches the shut down point compressor will be turned off 2 Evaporator subcooling protection will not display error code When evaporator coil temperature drops to 1 C...

Page 24: ...nit for continuously 2 minutes unit will shut down and display error code 10 Compressor starting fault If compressor fails to start it will try to restart after 3 minutes Error code will not be displa...

Page 25: ...Configuration Fresh Air Vent Control Figure 25 Air Vent Control POWER DRIVEN VENT DOOR Adjusting Air 1 1 2 3 4 5 Figure 26 Backside of Front Panel LOUVER SCREWS FRP025 FRP026 Figure 27 Adjusting Louv...

Page 26: ...isable heat pump run electric heat only HP models ON Electric heat only OFF OFF Overrides compressor operation HP models only 3 Electric strip ON enable electric heat OFF disable electric heat ON Fact...

Page 27: ...S when Dip Switch is set to OFF SW3 2 Cycle Continuous Fresh Air Fan cycles On Off with the Unit Indoor Fan when SW3 1 is set to ON SW3 2 is set to OFF Fresh Air Fan runs continuously when SW3 1 is se...

Page 28: ...When the outdoor ambient temperature falls below 32 F or outdoor coil temperature drops to 5 the unit will operate the electric strip instead of heat pump During heat pump mode CPU detects the outdoor...

Page 29: ...F d4 Indoor temperature calibra tion 9 C to 9 C If unit of temperature is changed calibration should be done again If using the default value it can be ignored default 0 C O F 9 F to 9 F d5 Temperatu...

Page 30: ...coil through the liquid line as a warm high pressure liquid It next will pass through the refrigerant drier if equipped It is the function of the drier to trap any moisture present in the system conta...

Page 31: ...MODE COOLING MODE NOTES REFRIGERANT FLOW DIRECTION CENTRIFUGAL OR CROSS FAN HOT AIR INDOOR COILS ELECTRIC HEATER COOLED AIR COMPRESSOR OUTDOOR COILS HOT DISCHARGED AIR CAPILLARY REFRIGERANT FLOW DIREC...

Page 32: ...e sink using warm water and a mild dishwashing detergent Dry the filter thoroughly before reinstalling Use caution the coil surface can be sharp Fan Motor Compressor The fan motor compressor are perma...

Page 33: ...ch as lamp poles or small shrubbery a clearance of 12 from the outdoor louver should be maintained TYPICAL BUILDING PLAN VIEW For major obstructions such as a solid fence wall or other heat rejecting...

Page 34: ...ly ONLY to walls less than 13 in depth 1 The PXDR10 Drain Kit optional for new construction see page 10 if applicable must be installed before the wall sleeve is installed into the wall 2 The External...

Page 35: ...SUBBASE OPTIONAL SUBBASE LEVELING SCREW FRP005 RECEPTACLE FINISHED FLOOR POWER SUPPLY CONDUIT SUPPLIED BY INSTALLER FRP007 NOTE Follow all wall system manufacturer installation instructions For sunroo...

Page 36: ...tion EXPANSION ANCHOR BOLT should be approximately 2 4 from the top and bottom of the sleeve MOUNTING HOLES PLASTIC ANCHORS SCREWS FRP008 Figure 9 Dimensions A MIN A B C Dimension Allow for wall finis...

Page 37: ...are to be installed later leave the weatherboard and center support in place otherwise remove and dispose of them See Figure 13 Page 12 8 Provide a support lintel if the wall sleeve is installed in a...

Page 38: ...the wall sleeve 4 Position the assembly beneath the drilled holes and secure it with 10 24 x machine screws and lock nuts provided Seal the tops of the screws with silicone caulking 5 Use I D copper...

Page 39: ...the cover plate to the remaining drain hole Make certain the large flange on the plate is positioned at the bottom of the sleeve 5 Discard the additional cover plate gasket machine screws and locknuts...

Page 40: ...asp the grille by the attached plastic handles Position it with the condensate drain knockouts facing down From inside the building maneuver the grille through the wall sleeve and pull toward you unti...

Page 41: ...ocation Figure 21 RemovingFrontPanel 2 SHIPPING TAPE FRP020 1 FRP021 4 Remove front panel see Figure 21 Pull out at the bottom to release it from the tabs 1 Then lift up 2 NOTE If the unit is mounted...

Page 42: ...so can result in back or other injury NOTICE POWER SUPPLY CORD FRP022 2 Locate the four supplied chassis mounting screws Insert the screws through the chassis mounting flange holes that are aligned wi...

Page 43: ...l dual stage heat thermostat with an B 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...

Page 44: ...ING 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...

Page 45: ...a mild detergent in warm water and allow them to dry thoroughly before reinstalling Fresh Air Filter The fresh air filter should be cleaned or replaced after 3 months of use for maximum effectiveness...

Page 46: ...nting screws and slide unit out of sleeve Figure 501 Chassis Removal CAUTION Unit weighs approximately 120 pounds Use caution when removing to prevent personal injury or damage to the equipment WARNIN...

Page 47: ...r interface Figure 503 3 Disconnect plug Figure 504 Figure 502 User Interface Removal Figure 503 User Interface Removal Figure 504 User Interface Removal WARNING ELECTRIC SHOCK HAZARD Turn off electri...

Page 48: ...tice to take pictures of the wiring connections to facilitate reinsallation 2 Disconnect wire connectors from Main PCB logic board one at a time Identify plugs for reinstallation 3 Remove 4 standoffs...

Page 49: ...ainer clips on top and bottom of power cord plug to disconnect Figure 508 3 Remove cord grommet 2 screws Figure 507 Remove Power Cord Figure 508 Remove Power Cord WARNING ELECTRIC SHOCK HAZARD Turn of...

Page 50: ...unt components to gain access for Power PCB Power Board removal 5 Remove 2 capacitors 2 heater board relays and 1 transformer but DO NOT disconnect connections Figure 510 Figure 509 Remove Power PCB F...

Page 51: ...ood practice to take pictures of the wiring connections to facilitate reinsallation 6 Disconnect wire connectors from Power PCB Power Board one at a time and and identify plugs for reinstallation Figu...

Page 52: ...7 Remove IPM PCB Cover 3 screws Fig 512 NOTE It is a good practice to take pictures of the wiring connections to facilitate reinsallation 8 Disconnect all wires Fig 513 8 Remove 4 mounting screws Fig...

Page 53: ...h power applied Failure to do so could result in serious injury or death 1 Remove front panel Figure 501 2 Remove User Interface Figures 502 thru 504 3 Open electrical Control Box Figure 505 4 Remove...

Page 54: ...lower Wheel Inside Fan Continued 9 Remove left panel 7 screws Figure 517 10 Loosen set screw DO NOT REMOVE from blower motor shaft Figure 518 NOTE Set screw is a metric type Allen Head screw Figure 51...

Page 55: ...T DISASSEMBLY AND COMPONENT REPLACEMENT Remove Blower Wheel Inside Fan Continued 11 Remove blower end plate 3 screws Figure 519 12 Slide blower assembly out of left side of unit Figure 519 Blower End...

Page 56: ...ties to loosen wire bundles Figure 521 NOTE It is a good practice to take pictures of the wiring connections to facilitate reinsallation 5 Disconnect indoor blower connector on Power PCB Power Board...

Page 57: ...el Motor Inside Fan Continued Figure 522 Remove Indoor Blower Motor Bracket 7 Remove mounting screws from electrical box rear and side covers and slide out of way to facilitate blower motor replacemen...

Page 58: ...cal Control Box Figure 505 4 Remove Chassis from Wall Figure 501 4 Remove indoor fan blower Figures 514 thru 519 5 Remove top support bracket 12 screws Figure 523 6 Disconnect blower housing sensor fr...

Page 59: ...ower applied Failure to do so could result in serious injury or death 1 Remove Chassis From wall Figure 501 2 Remove Freshair Cover Figure 526 3 Cut wire ties as required 4 Remove 4 screws from fresh...

Page 60: ...rew 9 Remove Blower wheel Figure 514 thru 519 10 Remove blower wheel housing 11 Remove freshaire fan assembly 2 screws UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Freshaire Components Continued...

Page 61: ...ed Not required for Blade replacement 6 Disconnect indoor blower connector on power panel Figure 529 Not required for Blade replacement 7 Disconnect Indoor blower capicitor connector Figure 530 Not re...

Page 62: ...NT Remove Outdoor Fan Continued 8 Remove Brackets and Shrouds 12 screws Figure 531and 532 9 Remove Mounting screws 4 places Figure 533 Figure 531 Remove Brackets and Shroud Figure 532 Remove Brackets...

Page 63: ...MENT Remove Outdoor Fan Continued 10 Pull up and remove fan housing Figure 534 11 Remove shaft nut and fan blade Figure 535 12 Remove motor 4 places Figure536 Figure 534 Remove Assembly Figure 535 Rem...

Page 64: ...ment 4 Open electrical Control Box Figure 505 Not required for Blade replacement 5 Cut wire ties as required Not required for Blade replacement 6 Disconnect connector from Power PCB Power Board cn 16...

Page 65: ...and lubricant contamination do not leave the refrigeration system open to the atmosphere longer than 1 hour 10 Weigh in the refrigerant charge into the high side of the system 11 Introduce liquid ref...

Page 66: ...ned and that its compressor will not be damaged Too 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...

Page 67: ...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 mete...

Page 68: ...epending upon amount of over charge Suction pressure should be slightly higher Compressor amps will be near normal or higher Noncondensables can also cause these symptoms To confirm reclaimsome of the...

Page 69: ...t 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...

Page 70: ...r charging the sealed system is the Weighed in Charge Method 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 wh...

Page 71: ...ing 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...

Page 72: ...ction 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 B ports of the pilot valve A third c...

Page 73: ...nit is in operation This will cause the coil to burn out Touch Test in Heating Cooling Cycle WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing Failure to follow this warning...

Page 74: ...ion block the air flow through the indoor coil and allow discharge pressure to build in the system Then switch the system from heating to cooling Should the valve fail to shift in either position afte...

Page 75: ...r wrap valve body with wet rag 7 Fit all lines into new valve and braze lines into new valve WARNING EXPLOSION HAZARD The use of nitrogen requires a pressure regulator Follow all safety procedures and...

Page 76: ...to shift complete reversal but does not Hot Warm Warm Hot Hot TVB Check unit for correct operating pressures and charge Raise head pressure If no shift use valve with smaller port Not enough pressure...

Page 77: ...r windings to sense the winding temperature and or current draw The overload is connected in series with the common motor terminal Should the internal temperature and or current draw become excessive...

Page 78: ...uity between pins R U S V and T W At room temperature 70 95 F the resistance should be approximately 2 2 ohms The Ohm values will change significantly at different temperatures This does not indicate...

Page 79: ...kit test the oil for acid content according to the instructions with the kit 7 If any evidence of a burnout is found no matter how slight the system will need to be cleaned up following proper procedu...

Page 80: ...e system including new drier strainer and capillary tube 5 Pressurize with a combination of R 410A and nitrogen and leak test all connections with an electronic or Halide leak detector Recover refrige...

Page 81: ...e fan operates in high speed When T4 drops to 77 F the fan operates in low speed 1 Check voltage between Nuetral and High or low Voltages should be 7 9vdc If no voltage is present check cable and resi...

Page 82: ...esistor across terminals 1 Disconnect leads to capacitor that you are checking 2 Bleed down capacitor with 2 watt resistor 3 Set multi meter to diode check setting 4 Check Resistance across capacitor...

Page 83: ...coil temperature T2 Outdoor coil temperature T3 CN 6 Display Outdoor ambient temperature T4 Compressor discharge temperature T5 Indoor outlet air temperature T6 CN 44 I Check CN 5 Debug CN 1 MB Comm C...

Page 84: ...ower Board DC Bus Lines Positive DC Bus Lines Negative CN 9 Fresh Air Connector L1 Fuse L1 L2 N CN 6 ACN CN 4 Trans IN CN 6 7 Reversing Valve Solenoid CN 10 Power Relays CN 20 FA CN 22 FAL CN 21 FAH J...

Page 85: ...re all contact well Compressor delay start It s normal compressor will start after 3 minutes Power fail protection When power on because of auto restart unit will delay starting in 120 240s Unit in pr...

Page 86: ...t are loose causing bad vibration Something in the air way Make sure that all moving parts are assembled well and nothing is in the air way Bad smell when heating The dust on the E heater is heating T...

Page 87: ...rcing or odors of overheating Check and monitor power supply stability and ensure proper NEC code grounding at the main breaker and power supply Remove IPM PCB Inverter Board Power PCB Identification...

Page 88: ...mised blower wheel fan blade compromised Check Dip Switch SW2 on Main Board is correct for the BTU of the unit model Check Compressor wiring is properly connected Check compres sor for Short Ground Ch...

Page 89: ...lti meter Is power Cord tripped Reset cord and test unit for proper operation Does Power cord trip again Check power cord including power board L1and L2 connection for proper connection or damage Corr...

Page 90: ...to pin continuity Are any wires showing open OL ReplaceDisplay Board ReplaceConnector cable Check all wiring and comms cable connectors from Main PCB to the Power PCB Ensure all connectors are undamag...

Page 91: ...wires have been disconnected Readings should always been taken when coil is cold The 9K BTU unit incorporates a 2 5kW and 1 0kW heater coils 1 Check 2 5 kW coil Blue HeaterCommon to Black Heater 1 230...

Page 92: ...relay connector on main PCB Monitor voltage for a few minutes to ensurevoltage does not drop o Is 12VDC Present ReplaceHeater Assembly Check for 230 265v across relay 1 black and relay 2 bluewire on...

Page 93: ...r to thermistor charts for resistance and temperature deviation 5k Indoor ambient temperature T1 Figure 719 5k Indoor coil temperature T2 Figure 719 5k Outdoor coil temperature T3 Figure 719 5k Outdoo...

Page 94: ...86 23 21158 63 7090 73 5515 113 2183 16 72014 24 20548 64 6911 74 5381 114 2137 15 69633 25 19959 65 6738 75 5251 115 2091 14 67338 26 19388 66 6569 76 5124 116 2046 13 65127 27 18836 67 6406 77 5000...

Page 95: ...104 171 688 196 443 221 294 246 200 147 1083 172 675 197 435 222 289 247 197 148 1062 173 663 198 428 223 285 248 194 149 1041 174 651 199 421 224 280 249 191 150 1021 175 640 200 414 225 276 250 189...

Page 96: ...375 24 94676 16 26034 56 8494 96 3191 136 1348 23 91453 17 25266 57 8275 97 3119 137 1321 22 88349 18 24523 58 8063 98 3048 138 1294 21 85362 19 23805 59 7857 99 2980 139 1269 20 82486 20 23110 60 765...

Page 97: ...236 233 165 768 183 554 201 407 219 303 237 229 166 754 184 545 202 400 220 298 238 226 167 740 185 535 203 394 221 294 239 222 168 727 186 526 204 387 222 289 240 219 169 713 187 517 205 381 223 285...

Page 98: ...98 WIRING DIAGRAMS Figure 801...

Page 99: ...example WCT12A30A Choose the part that corresponds with the USED ON MODEL annotation that corresponds to your nameplate In some cases there will be an additional letter indicating there has been a min...

Page 100: ...FA PVH09R3FB PVH12K3FA PVH12K3FB PVH12R3FA PVH12R3FB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 69 70 68 67 66 65 64 63 62 61 60 58 57 56 55 54 53 52 51 50...

Page 101: ...2183 POWER CORD COVER ALL 1 12 67808012 PCB STAND OFF ALL 1 13 67812119 AIR GUIDE PLATE 1 ALL 1 14 67812120 DISPLAY ESCUTCHEON ALL 1 15 67812184 24V TRANSFORMER PVH09K3FA PVH09K3FB PVH09R3FB PVH12K3FA...

Page 102: ...PVH12R3FA 1 41 67808042 BLOWER WHEEL ALL 1 42 67808043 DISCHARGE LOUVER ALL 1 43 67808044 AIR FILTER ALL 1 44 67812127 THERMOSTAT TERMINAL BLOCK ALL 1 45 67812128 REACTOR ALL 1 46 67812129 REVERSING...

Page 103: ...R3FB PVH12R3FA 1 68 67812145 CHECK VALVE PVH09K3FA PVH09K3B PVH09R3FA PVH09R3FB 1 68 67812165 CHECK VALVE PVH12K3FA PVH12K3B PVH12R3FA PVH12R3FB 1 69 67812146 ELECTRIC HEAT ELEMENT PVH09K3FA PVH09K3FB...

Page 104: ...ATION PADS ALL 1 87 67812089 SADDLE CLIP ALL 1 88 67812157 NOISE BLANKET CAP ALL 1 89 67812158 NOISE BLANKET ALL 1 90 67812159 DISPLAY ESCUTCHEON ALL 1 ITEMS ARE NON ILLUSTRATED ITEMS ARE NON STOCKED...

Page 105: ...support for walls less than six inches thick Includes leveling legs side filler panels and mounting brackets for electri cal accessories Accepts circuit breaker power disconnect switch or conduit kit...

Page 106: ...draining Recommended on all units to remove excess condensate Packaged in quantities of ten RT7 DIGITAL REMOTE WALL THERMOSTAT Single stage cool single stage heat for PDE models or single stage cool...

Page 107: ...7 68 69 68 20 91 92 91 4 33 46 47 46 4 8 70 71 69 8 21 93 94 93 2 34 48 49 48 2 9 72 71 6 22 95 96 95 35 50 51 50 10 73 74 73 4 23 97 98 96 8 36 52 53 51 8 11 75 76 75 2 24 99 98 6 37 54 53 6 12 77 7...

Page 108: ...RICH in exchange for the replacement part Reasonable proof must be presented to be new or remanufactured Replacement parts and labor are only warranted for any unused portion of the unit s warranty We...

Page 109: ...nformation 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 exp...

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