Page 1 Ductless Floating Air Pro X ® Single Zone 9-18k BTU R-454B Refrigerant Outdoor Unit 230-Volt: FPHFR09A3D, FPHFR12A3D, FPHFR18A3D Wall Mounted Unit FAHFW09A3D, FAHFW12A3D, FAHFW18A3D 230-Volt: Cassette 230-Volt: FPHFC09A3D, FPHFC12A3D, FPHFC18A3D Ducted 230-Volt: FPHFD09A3D, FPHFD12A3D, FPHFD18A3D THE EXPERTS IN ROOM AIR CONDITIONING 96161400_00...
Page 2: Table Of Contents
TABLE OF CONTENTS INTRODUCTION Important Safety Information Personal Injury Or Death Hazards Model And Serial Number Location Model Identification Guide Serial Number Reference Guide SPECIFICATION Wall Mount Cassette Ducted Indoor Unit Clearances Outdoor Unit Clearances Dimensions Indoor Unit FAHFW09A3D, FAHFW12A3D FAHFW18A3D Dimensions Outdoor Unit FPHFR09A3D, FPHFR12A3D...
Page 3 FAHFW09A3D, FAHFW12A3D, FAHFW18A3D (With A2L sensor connection) Ducted 9k &12k Ducted 18k Cassette 9k -12k Cassette 18k Outdoor Unit 9-12k BTU Outdoor Unit 18k BTU APPENDIX Interactive Parts Viewer Limited Warranty Compressor Discharge Temp Sensor Resistance Values Friedrich Authorized Parts Depots...
Page 4: Introduction
Installation procedures are not given in this manual. They are given in the Installation/Operation manual which can be acquired on the Friedrich website. Click the Link or scan the QR code to be directed to the Professional page where you can locate our technical literature.
Page 5: Personal Injury Or Death Hazards
INTRODUCTION Personal Injury Or Death Hazards WARNING AVERTISSEMENT ADVERTENCIA SAFETY Do not remove, disable Ne pas supprime, désacti- No eliminar, desactivar o or bypass this unit’s ver ou contourner cette pasar por alto los dispositi- FIRST safety devices. Doing so l´unité...
Page 6: Mechanical Hazards
INTRODUCTION Personal Injury Or Death Hazards • REFRIGERATION SYSTEM REPAIR HAZARDS: • Use approved standard refrigerant recovering procedures and equipment to relieve high pressure before opening system for repair. Reference EPA regulations (40 CFR Part 82, Subpart F ) Section 608. Do not allow liquid refrigerant to contact skin.
Page 7 CAUTION: Do Not Operate Equipment During Active Stages Of Construction To ensure proper operation, Friedrich requires that all equipment is not operated during active construction phases. This includes active stages of completing framing, drywalling, spackling, sanding, painting, ﬂooring, and moulding in the equipment’s designated conditioning space. The use of this equipment during construction could result in premature failure of the components and/or system and is in violation of our standard warranty guidelines.
Page 8: Model And Serial Number Location
INTRODUCTION Model And Serial Number Location Indoor Unit On side of Unit Figure 101 (Indoor Unit Model Nameplate location) Outdoor Unit On side of Unit Figure 102 (Indoor Unit Model Nameplate location)
Page 9: Model Identification Guide
Optional hard-wired controller for Floating Air wall-mounted and cassette indoor models. FACTORY DESIGNATION 02 = FEBRUARY Included with concealed ducted models. Not compatible with AHU indoor models. See your M = FRIEDRICH MTY 03 = MARCH Friedrich representative for options. 04 = APRIL...
Page 10: Specification
SPECIFICATION Wall Mount FAC Indoor Model FAHFW09A3D FAHFW12A3D FAHFW18A3D Model FAC Outdoor Model FPHFR09A3D FPHFR12A3D FPHFR18A3D Power Supply V/ph/Hz 208~230/1/60 208~230/1/60 208~230/1/60 Energy Star Standard Energy Star -Cold Climate Performance Rated Capacity at 95℉ Btu/h 9000 12000 18000 Cooling Capacity Range(MIN-MAX) Btu/h 4600~12700 4600~12700...
Page 11: Specifications
SPECIFICATIONS Wall Mount FAC Indoor Model FAHFW09A3D FAHFW12A3D FAHFW18A3D Model FAC Outdoor Model FPHFR09A3D FPHFR12A3D FPHFR18A3D Air Circulation(high) for Outdoor ft3 CFM 1354 1354 1853 Outdoor Airflow Outdoor Sound Power dB (A) Model ZKFN-40-8-33 ZKFN-40-8-33 ZWB2710L01AL Outdoor Fan 1/20 1/20 1/12 Output Motor...
Page 12 SPECIFICATIONS Wall Mount FAC Indoor Model FAHFW09A3D FAHFW12A3D FAHFW18A3D Model FAC Outdoor Model FPHFR09A3D FPHFR12A3D FPHFR18A3D inches 33 7/8 ×11 2/8 ×8 4/8 33 7/8 ×11 2/8 ×8 4/8 45 2/8 ×13 2/8 ×10 1/8 Dimension (WxHxD) 860×285×216 860×285×216 1148×336×256 inches 36 5/8 ×15 ×11 2/8 36 5/8 ×15 ×11 2/8...
Page 13: Cassette
SPECIFICATIONS Cassette FAC Model Set Unit FPHC093D FPHC123D FPHC183D FAC Indoor Model FPHFC09A3D FPHFC12A3D FPHFC18A3D FAC Outdoor Model FPHFR09A3D FPHFR12A3D FPHFR18A3D Power Supply V/ph/Hz 208~230/1/60 208~230/1/60 208~230/1/60 Energy Star Standard Energy Star -Cold Climate Performance Cooling Rated Capacity at 95℉ Btu/h 9000 12000...
Page 14 SPECIFICATIONS Cassettes FAC Model Set Unit FPHC093D FPHC123D FPHC183D FAC Indoor Model FPHFC09A3D FPHFC12A3D FPHFC18A3D FAC Outdoor Model FPHFR09A3D FPHFR12A3D FPHFR18A3D Outdoor Fan Model ZKFN-40-8-33 ZKFN-40-8-33 ZWB2710L01AL Motor Output Capacitor μF Speed (Hi) r/min Electrical Rated Current Cooling (A) see line 17 see line 17 Heating (A) see line 24...
Page 15 SPECIFICATIONS Cassettes FAC Model Set Unit FPHC093D FPHC123D FPHC183D FAC Indoor Model FPHFC09A3D FPHFC12A3D FPHFC18A3D FAC Outdoor Model FPHFR09A3D FPHFR12A3D FPHFR18A3D Outdoor Unit Dimension (WxHxD) inches 1/8ths 31-7/8×22-7/8×11 31-7/8×22-7/8×11 33-7/8 ×26-3/8 ×12-1/4 810×580×280 810×580×280 860×670×310 Packing(LxWxH) inches 1/8ths 37×16-1/2×25-1/4 37×16-1/2×25-1/4 39×17-3/4×28-3/4 940×420×640 940×420×640...
Page 16: Ducted
SPECIFICATIONS Ducted FAC Model Set Unit FPHD093D FPHD123D FPHD183D FAC Indoor Model FPHFC09A3D FPHFC12A3D FPHFC18A3D FAC Outdoor Model FPHFR09A3D FPHFR12A3D FPHFR18A3D Power Supply V/ph/Hz 208~230/1/60 208~230/1/60 208~230/1/60 Energy Star Standard Energy Star -Cold Climate Performance Cooling Rated Capacity at 95℉ Btu/h 9000 12000...
Page 17 SPECIFICATIONS Ducted FAC Model Set Unit FPHD093D FPHD123D FPHD183D FAC Indoor Model FPHFC09A3D FPHFC12A3D FPHFC18A3D FAC Outdoor Model FPHFR09A3D FPHFR12A3D FPHFR18A3D Outdoor Airflow Air Circulation(high) for Outdoor ft3 CFM 1354 1354 1853 Outdoor Sound pressure (High) dB (A) Outdoor Fan Motor Model ZKFN-40-8-33 ZKFN-40-8-33...
Page 18 SPECIFICATIONS Ducted FAC Model Set Unit FPHD093D FPHD123D FPHD183D FAC Indoor Model FPHFC09A3D FPHFC12A3D FPHFC18A3D FAC Outdoor Model FPHFR09A3D FPHFR12A3D FPHFR18A3D Outdoor Unit Dimension (WxHxD) inches 31-7/8×22-7/8×11 31-7/8×22-7/8×11 33-7/8 ×26-3/8 ×12-1/4 810×580×280 810×580×280 860×670×310 Packing(LxWxH) inches 37×16-1/2×25-1/4 37×16-1/2×25-1/4 39×17-3/4×28-3/4 940×420×640 940×420×640 990×450×730 Net Weight...
Page 19: Indoor Unit Clearances
Installation Instructions / SPECIFICATIONS Indoor Unit Clearances Installation diasram Distance from ceiling nstallation, it is essential to fully consider the space required for should be over 7.9in Distance from wall '\.!,. obstacles at the ventilation outlets that could block air circulation. should be over 2in uld be avoided: hazards, such as coal dust, metal dust, cotton lint, petroleum, natural gas,...
Page 20: Dimensions Indoor Unit
SPECIFICATIONS Dimensions Indoor Unit FAHFW09A3D, FAHFW12A3D ALL DIMENSIONS GIVEN IN INCHES (") 33 7/8 Air Inlet 8 3/8 2 3/8 Tube Exit 28.5 2 3/4 7 1/4 7 1/2 Ceilng 26 1/2 20 5/8 > 7 7/8 2 5/8 2 3/4 2 5/8 >...
Page 21: Fahfw18A3D
SPECIFICATIONS Dimensions Indoor Unit FAHFW18A3D 44 1/8 ALL DIMENSIONS GIVEN IN INCHES (") CEILING 45 1/4 10 1/8 38 1/4 TUBE EXIT 3 3/8 38 1/4 2 1/4 AIR INLET 23 7/8 27 3/4 37 1/2 CEILING 28 7/8 > 3/4 2 3/4 2 3/4 >...
Page 22: Outlines And Dimensions
2 . OUTLINES AND DIMENSIONS SPECIFICATIONS 2.2 Outdoor Units Dimensions Outdoor Unit 9K/12K FPHFR09A3D, FPHFR12A3D Unit: in.(mm) Electric box 11-1/4(285) 11(281) Liquid pipe 5-3/4(146) Gas pipe 3(77) 33(810) 5-7/8 (148) Air inlet Drain pipe 4-3/8(10)*5/8(17)Hole 5-7/8(150) 20(510) 12-3/8(314) 2(50) Air outlet Figure 214...
Page 23: Fphfr18A3D
2. OUTLINES AND DIMENSIONS SPECIFICATIONS Dimensions Outdoor Unit FPHFR18A3D Unit : in.(mm) Electric box 12-1/4(312) Liquid pipe 6-5/8(168) 3(76) 21-3/8(542) Gas pipe 33-7/8(860) Air inlet Drain pipe 4-11×17 Hole Air outlet Figure 215...
Page 24: Dimensions Cassette (9 And 12K Btu)
Cassette type SPECIFICATIONS 9K/12K Dimensions Cassette (9 and 12k BTU) Unit: in.(mm) Figure 216...
Page 25: Dimensions Cassette (18K Btu)
SPECIFICATIONS Dimensions Cassette (18K BTU) Unit: (mm) 37-3/8(950) 21-5/8(550) 19-3/16(487) 33(840) 8-1/4(209) 7-1/8 (182) 5-7/8 (148) 30(760) 8(203) 1-3/16(30) H+1-1/8(28) 33-7/8~35-7/8(860~910) Model 18K/24K Figure 217...
Page 26: Dimensions Ducted (9 And 12K Btu)
SPECIFICATIONS Dimensions Ducted (9 and 12k BTU) Unit : in.(mm) 7-1/12(190) Air outlet 6-11/16(170) 3-7/8(98) 3-3/8 (85) 1-3/8(35) Air inlet Gas pipe Liquid pipe Air outlet Drain pipe Electric box Air inlet M M o o d d e e l l ( ( B B t t u u / / h h ) ) 37-13/16 35-13/16...
Page 27: Dimensions Ducted (18K Btu)
SPECIFICATIONS Dimensions Ducted (18k BTU) Unit : in.(mm) 1/2(14) Electric box Air inlet 8-3/4(222) 5-7/8(150) 1(21) 2-1/4(58) Air outlet Liquid pipe Gas pipe Drain pipe Air inlet Air outlet Model(Btu/h) 26-1/2 33-1/2 26-1/2 31-1/2 (674) (850) (636) (673) (800) (636) (24) 38-3/8 45-1/4...
Page 28: Sound Pressure Data - Indoor Units (Ducted)
6. Sound Level (Reference) SPECIFICATIONS Indoor unit Duct type Sound Pressure Data - Indoor Units (Ducted) Model Model Test condition 4.6ft.(1.4m) under the unit; 3.28ft.(1.0m) high from Test condition 4.6ft.(1.4m) under the unit; 3.28ft.(1.0m) high from the ground. the ground. NC-70 NC-70 NC-65...
Page 29 SPECIFICATIONS Sound Pressure Data - Indoor Units (Ducted) Indoor unit Notes： 1.The sound power level is dependent on the operating conditions of the unit. Sound measurements shall be carried out at the standard rating conditions。 Test method reference standard EN 12102-1. 2.
Page 30: Sound Level
6. SOUND LEVEL SPECIFICATIONS Sound Pressure Data - Indoor Units (Cassettes) Cassette type Model Model Test condition 4.92ft.(1.5m) under the unit; 3.28ft.(1.0m) high Test condition 4.92ft.(1.5m) under the unit; 3.28ft.(1.0m) high from the ground. from the ground. NC-70 NC-70 NC-65 NC-65 NC-60 NC-60...
Page 31 SPECIFICATIONS Sound Pressure Data - Indoor Units (Cassettes) Indoor unit Notes： 1.The sound power level is dependent on the operating conditions of the unit. Sound measurements shall be carried out at the standard rating conditions。 Test method reference standard EN 12102-1. 2.
Page 32: Sound Pressure Data - Outdoor Units
SPECIFICATIONS Sound Pressure Data - Outdoor Units Model Model 3.28ft.(1.0m) ahead of the unit; 4.92ft.(1.5m) Test condition 3.28ft.(1.0m) ahead of the unit; 4.92ft.(1.5m) Test condition high from the bottom of the unit. high from the bottom of the unit. NC-70 NC-70 NC-65 NC-65...
Page 33 SPECIFICATIONS Sound Pressure Data - Outdoor Units Outdoor unit Outdoor unit Notes： 1.The sound power level is dependent on the operating conditions of the unit. Sound measurements shall be carried out at the standard rating conditions。 Test method reference standard EN 12102-1. 2.
Page 34: Airflow Distribution (9K Cassette)
7. Air Flow Distribution SPECIFICATIONS Cassette type Airflow Distribution (9k Cassette) 1) Cooling/Air Velocity Distribution 2) Cooling/Air Temperature Distribution 3) Heating/Air Velocity Distribution 4) Heating/Air Temperature Distribution Figure 232...
Page 35: Airflow Distribution (12K Cassette)
SPECIFICATIONS Airflow Distribution (12k Cassette) 1) Cooling/Air Velocity Distribution 2) Cooling/Air Temperature Distribution 3) Heating/Air Velocity Distribution 4) Heating/Air Temperature Distribution Figure 233...
Page 36: Airflow Distribution (18K Cassette)
7. AIR FLOW DISTRIBUTION SPECIFICATIONS Airflow Distribution (18k Cassette) 1) Cooling/Air Velocity Distribution 2) Cooling/Air Temperature Distribution 3) Heating/Air Velocity Distribution 4) Heating/Air Temperature Distribution Figure 234...
Page 37: Esp (External Static Pressure) Chart (Duct Type)
8. ESP (External static pressure) Chart (Duct type) SPECIFICATIONS 9K/12K ESP (External Static Pressure) Chart (9-12k Ducted Units) Standard E E S S P P Chart (0 0 . . 1 1 8 8 i i n n . . H H O O ) 0.43 0.38...
Page 38: Esp (External Static Pressure) Chart (18K Ducted Units)
8. ESP CHART (DUCT TYPE) SPECIFICATIONS ESP (External Static Pressure) Chart (18k Ducted Units) Low ESP（（ 0.18 In.H O）） 0.24 High Limit 0.19 Rated Middle 0.14 0.09 0.04 A A i i r r f f l l o o w w r r a a t t e e ( ( CFM) ) Standard ESP（...
Page 39: Installation
INSTALLATION General...
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Page 46: Cassette
INSTALLATION Cassette local and national...
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Page 61 INSTALLATION Cassette...
Page 62 INSTALLATION Cassette This product must be installed on a single dedicated electrical circuit. Circuit breaker protection must be installed in accordance with this manual. In moist and humid locations, an ELB type circuit breaker must be used. local and national When used, select...
Page 63: Cassette-Fresh Air Duct Adapter
INSTALLATION Cassette-Fresh Air Duct Adapter DANGER indicates a hazardous situation which, if not avoided, DANGER will result in death or serious injuries. WARNING indicates a hazardous situation which, if not avoided, ! WARNING could result in death or serious injuries. CAUTION, used with the safety alert symbol, indicates a hazardous situation CAUTION which, if not avoided, could result in minor or moderate injuries.
Page 64 INSTALLATION Cassette-Fresh Air Duct Adapter NOTICE ● If the air conditioning system is installed in a location where difference between the indoor temperature and outdoor supply air temperature is 15 degrees or more, a heat recovery ventilator is required. Otherwise, air conditioning is not available. In addition, when the said difference is 10 degrees or more, the Thermo-ON/OFF behavior of the operation may get slow.
Page 65 INSTALLATION Cassette-Fresh Air Duct Adapter ● Thermally insulate duct and duct connector using nonflammable insulation materials. Otherwise, air leakage and condensation may arise. ● Install the indoor unit and then attach the duct adapter. Otherwise, the indoor unit can’t be installed for grid ceiling.
Page 66 INSTALLATION Cassette-Fresh Air Duct Adapter 2. . Installation This duct adapter is used as the connection flange to attach the fresh air intake duct. Installation Position (9-12k) BTU cassettes Attach the duct adapter to the opposite side of drain piping side. Duct adapter Refrigerant Pipe Side Indoor Unit...
Page 67: Indoor Unit
INSTALLATION Cassette-Fresh Air Duct Adapter Installation Position for cassette Attach the duct adapter to the Duct adapter opposite side of drain piping side. Indoor Unit Electrical Box Drain Pipe Side Refrigerant Pipe Side Viewed from A (1) Attach the duct adapter to the indoor unit in the following procedure.
Page 68 INSTALLATION Cassette-Fresh Air Duct Adapter Procedure 1. Punch the knockout hole in the side plate where the duct adapter is attached with scissors, etc. 2. Cut of the insulation (Polystyrene) along notched part of the side plate using a cutter, etc. 3.
Page 69 INSTALLATION Cassette-Fresh Air Duct Adapter (2) Fix the duct adapter with screws (4 pieces). Duct adapter Indoor Unit (3) Tighten the band for fixing the flexible duct. Screws (4 Pieces) Fig.2...
Page 70: Ducted
INSTALLATION Ducted...
Page 71 INSTALLATION Ducted minute delay...
Page 72 INSTALLATION Ducted...
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Page 74 INSTALLATION Ducted local and national...
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Page 82 INSTALLATION Ducted This product must be installed on a single dedicated electrical circuit. Circuit breaker protection must be installed in accordance with this manual. In moist and humid locations, an ELB type circuit breaker must be used. local and national codes When using an ELB, select...
Page 83: Installation
Installation Instructions / INSTALLATION Installation diasram Wall Mount Distance from ceiling C.2 Clearances should be over 7.9in Distance from wall '\.!,. should be over 2in Distance from the wall Distance from the obstacle should be over 9.8ft. should be over 2in Distance from floor should be over 6 ft.
Page 84: Pre-Installation Checkpoints
INSTALLATION Wall Mount C.3 Pre-Installation Checkpoints 1. Ensure there are no obstacles near the air outlet and air can be easily blown to every corner. 2. Where piping and wall hole can be easily arranged. 3. Keep the required space from the unit to the ceiling and wall according to the installation diagram on previous page.
Page 85: Installation Of The Unit
INSTALLATION C. INSTALLATION OF THE UNIT Wall Mount Installation instructions / C.4 Install Mounting Plate Horizontal ruler Mounting plate position 1. Installing the Mounting Plate 1) Decide an installing location for the mounting plate Holder according to the indoor unit location and piping (for some models) ..
Page 86 INSTALLATION C. INSTALLATION OF THE UNIT Wall Mount C.4 Install Mounting Plate 8 in. or more to ceiling Indoor unit outline 2 in. or more ! 2 in. or more to wall i towall Pipe hole Pipe hole For 18K/ 24K Series Models, WIDTH: 37 5/ 38 in.
Page 87 INSTALLATION C. INSTALLATION OF THE UNIT Installation instructions / Wall Mount C.5 Drill Hole for Piping Table of Wall Hole Mounting size per Unit Size Size A Size A Size B SizeC Unit Model 1 3/8 in 1 3/8 in 1 3/4 in 2 3/4 in 7K/9K/12K Series...
Page 88 INSTALLATION C. INSTALLATION OF THE UNIT Wall Mount Fig. C.5 C.6 Piping Provisions 3. Piping Provision 1) Put the piping (liquid and gas pipe) and cables through the wall hole from outside or put them through from inside after indoor piping and cables connection is complete to connect to the outdoor unit. 2) Decide whether to cut the knockout plate in accordance with the piping direction.
Page 89: Indoor Unit Installation
Cracked Uneven Thickness INSTALLATION C. INSTALLATION OF THE UNIT Fig. C.6.4 Fig. C.6.5 Fig. C.7.1 Wall Mount C.7 Indoor Unit Installation 4. Indoor Unit Piping Installation 1) Hang the unit onto mounting plate Indoor unit installation (Fig. C.7.1). 2) In the A position, open the front panel as shown in Fig. C.7.2. 3) In the B position, open the screw covers as shown in Fig.
Page 90 INSTALLATION Installation instructions / C. INSTALLATION OF THE UNIT Wall Mount C.7 Indoor Unit Installation Indoor unit installation 6) Connect the piping Piping Connection: Small sealing cap Before unscrewing the big and the small sealing caps, press the small sealing cap with the finger until the exhaust noise stops, and then loosen ' '9----.
Page 91 INSTALLATION C. INSTALLATION OF THE UNIT Wall Mount C.7 Indoor Unit Installation ( Indoor unit installation The 18K/24K indoor unit include the switch tie-in accessory -..___ Gas valve only for 18K/24K indoor if required. It may switch 3/8" gas connection tube into 1/2" or 5/8" connection tube. ·.�...
Page 92 Installation instructions / INSTALLATION C. INSTALLATION OF THE UNIT Wall Mount C.7 Indoor Unit Installation Indoor unit installation 10) Pull the baffles as shown in Fig. C.5.20 Close the front shell as shown in Fig. C.5.21 . Then press the E position to fasten the front shell as shown in Fig.
Page 93: Electrical Shock Hazard
INSTALLATION E. ELECTRICAL Wall Mount Model Wire Diameter(AWG) Interconnecting Wire WARNING 14-4 AWG 600V THHN 14-4 AWG 600V THHN 14-4 AWG 600V THHN Electrical Shock Hazard 14-4 AWG 600V THHN Always ensure power is Table E.1 disconnected before attempting NOTE: All communication wire must be stranded wire to connect wires.
Page 94 INSTALLATION E. ELECTRICAL Wall Mount E.1 Indoor Unit Wiring Connection Diagram Diagram is reference only, actual product terminals should be followed.
Page 95: Outdoor Unit
INSTALLATION Outdoor Unit...
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Page 105 INSTALLATION Outdoor Unit and national (3) All communication wire must be 4*14 AWG THHN stranded. Solid wire can cause communication error. In cold weather conditions, make sure to turn electric power 6 hours before operating unit. This will allow the compressor to warm up and prevent damage to the compressor.
Page 106: Operation
OPERATION Operation Range (Cooling and Heating) Temperature Cooling operation Heating operation Indoor temperature 90˚F 81˚F 70˚F 45˚F outdoor temperature 125˚F 75˚F 5˚F -13˚F Figure 301 *Optimum performance will be achieved within these operating temperature. If air conditioner is used outside of the above conditions, the protective device may trip and stop the appliance.
Page 107: Remote Control
OPERATION Remote Control Figure 302...
Page 108 OPERATION Remote Control...
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Page 117: Unit Function (Cassette And Ducted)
OPERATION 1. Functio and Control Unit Function (Cassette and Ducted) 1.1 Main Function 1.1.1 Indoor unit mode control 1. Main general technical parameters (1) Remote receiver distance: 26ft.(8m). (2) Remote receiver angle: Less than 80 degrees. (3) Temperature control accuracy: ±1℉. (4) Time error: Less than 1%.
Page 118 OPERATION 1. FUNCTION AND CONTROL Unit Function (Cassette and Ducted) 2.4 Sleep (1) In the heating, cooling or dehumidifying mode, press the “Sleep” button on the remote controller to start or cancel the sleep function in turn, and at the same time the sleep icon on the display screen will be on or off accordingly.
Page 119 OPERATION Unit Function (Cassette and Ducted) 2.10 Fault code The fault code can be shown by LED lamps or will display on the wired controller. 2.11 Filter cleaning FC will light up when air filter is clogged with dust. How to set/cancel: It can be set /cancelled with the wired remote controller. For details, see internal control parameter adjustment.
Page 120: Unit Function (Outdoor Unit)
1. FUNCTION AND CONTROL OPERATION 1. . 1.2 Outdoor unit control mode Unit Function (Outdoor Unit) 1.1 Cooling anti-freeze protection The indoor coil sensor functions as real time temperature detector of evaporator. It prevents the indoor unit evaporator temperature becoming too low. If the indoor coil temperature is too low, the compressor will automatically start the protection mode.
Page 121: Function And Control
OPERATION 1. FUNCTION AND CONTROL Unit Function 1.2 Indoor Unit Display Panel Cassette type 5 4 3 9K/12K Description 9K/12K 1 Run indicator (Red) It lights on during operation. It lights off during SLEEP mode. 2 Emergency switch The filter clean indicator is reset when the switch is pressed. The unit will be started or stopped when the switch is pressed.
Page 122: System Protection
1. FUNCTION AND CONTROL OPERATION Unit Function 1.3 Control Logic Description 1.3.1 Sensors in HVAC Systems (1) Discharge temperature sensor (2) Outdoor coil temperature sensor (3) Outdoor ambient temperature sensor (4) Indoor coil temperature sensor (5) Indoor ambient temperature sensor 1.3.2 Compressor Frequency Control (1) Compressor frequency calculation (2) Compressor frequency range determination...
Page 123: Outdoor Unit
OPERATION 1. FUNCTION AND CONTROL Unit Function 1.3.1 Sensors in HVAC Systems Indoor unit List of component Apellation Hexagon nut Indoor heat exchanger Ambient temperature sensor Coil temperature sensor Outdoor unit List of component Cooling cycle Heating cycle Apellation Compressor Discharge temperature sensor 4-Way valve Outdoor heat exchanger...
Page 124 OPERATION 1. FUNCTION AND CONTROL Unit Function 1) In heating mode, detect the coil temperature and control the opening of the electronic expansion valve. 2) In heating mode, execute the system overload control. 3) In heating mode, perform the indoor cold air prevention control. 4) In cooling mode, activate the system low temperature protection.
Page 125 1. FUNCTION AND CONTROL OPERATION Unit Function 3) Indoor ambient temperature coefficient K3 It refers to the temperature detected by the indoor ambient temperature sensor. 4) Outdoor ambient temperature coefficient K4 It refers to the temperature detected by the outdoor ambient temperature sensor. 5) Indoor setting speed coefficient K5 Each indoor setting speed has a specific frequency calculation coefficient.
Page 126: Unit Function
OPERATION 1. FUNCTION AND CONTROL Unit Function Upper discharge temperature limit The discharge temperature represents the internal temperature of the compressor, and the excessive temperature[>248℉(120°C)] poses a risk of melting internal insulated components, causing damage to the compressor. Therefore, it is necessary to set a reasonable temperature value [generally 208℉(98°C)].
Page 127 OPERATION 1. FUNCTION AND CONTROL Unit Function (2) Opening control at the start-up phase The first 5 minutes during compressor start-up is generally called the start-up phase, and the opening of the electronic expansion valve in this phase only depends on the compressor frequency.
Page 128 OPERATION 1. FUNCTION AND CONTROL Unit Function (4) Opening control during powering off After the HVAC receives the power-off command, the electronic expansion valve opening is maintained at 200 steps after the compressor shuts down. This opening helps to balance the pressure of the indoor and outdoor units before the HVAC is started.
Page 129 O PERATION 1. FUNCTION AND CONTROL Unit Function Outdoor fan running rules: Once the outdoor fan start up, it will follow the below rules: Single outdoor fan: First, it will run in an invariable speed for a short time; Then it will regulate the speed by the outdoor-coil temperature.
Page 130 OPERATION Unit Function 1. FUNCTION AND CONTROL 1.3.3.5 Defrost Control (1) Defrost entry conditions 1) After the compressor runs for about 40 min, the outdoor ambient temperature and the outdoor coil temperature are detected. 2) The target defrost temperature is the outdoor ambient temperature × 0.8 - 43℉(6°C), IF the outdoor coil temperature arrived at the target defrosting temperature,which is kept for 2 min, and then defrosting is enabled.
Page 131 OPERATION 1. FUNCTION AND CONTROL Unit Function Temperature ℉(°C) T1: Temperature for compressor shutdown T2: Temperature for compressor frequency reduction T3: Temperature for preventing the compressor from frequency increase When the temperature is too high, the control module outputs a signal as below: When T≥T1, the compressor shuts down, and the HVAC stops.
Page 132 1. FUNCTION AND CONTROL OPERATION Unit Function When the indoor coil temperature is too low, the control module outputs a signal as below: When T≥T3, the HVAC operates properly. When T3>T≥T2, the compressor frequency is reduced. When T2>T≥T1, the compressor is prohibited from increasing the frequency. When T<T1, the compressor shuts down, and the HVAC stops.
Page 133 OPERATION 1. FUNCTION AND CONTROL Unit Function 1.3.3.7 Others (1) Auto Mode This mode can be chosen with remote controller and the set temperature can be changed between 61~86℉(16~30℃). In auto mode, the unit will choose cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts). Running mode ΔT=T1-Ts Cooling...
Page 134 1. FUNCTION AND CONTROL OPERATION Unit Function (4) Indoor self-cleaning mode After receiving the self-cleaning signal, the indoor unit enters the self-cleaning mode. The indoor fan and compressor shut down first. After 1 min, the compressor starts and runs with the cooling mode, but the indoor fan does not run. After the self-cleaning mode is over, the compressor shuts down, and then after 1 min, the HVAC returns to the mode before the self-cleaning starts.
Page 135: Field Settings
2. FIELD SETTING OPERATION 2. Field Setting Field Settings 2.1 Field setting 2.1.1 Outdoor unit DIP switch DIP Switch Setting of Outdoor Unit (Optional setting) 1. Turn on all power sources before setting. Without turning on, the switches settings are not refreshed and might be invalid.
Page 136 2. FIELD SETTING OPERATION Field Settings Step 3: Switch on the machine power. Step 4: Switch S4-2 to ON position on the checker board, the outdoor unit starts, and the current frequency value is displayed on the LED digital tube of the checker board. Step 5: The frequency value will keep changing until "CLOS"...
Page 137 OPERATION 2. FIELD SETTING Field Settings 2.1.2 ESP setting (Duct type only) During the installation, choose proper static pressure according to the actual conditions within the range below to meet the user's requirements. The static pressure can be freely adjusted by using specific wired remote controller. Capacity The Range of Function Code Set...
Page 138 OPERATION 2. FIELD SETTING Field Settings 2.1.3 Indoor unit parameter revision 1) Connecting wired controller with the indoor unit Step 1: Remove the upper cover of the wired controller Upper cover of the wired controller Lower cover of the wired controller Insert a normal screw driver into the position, and gently rotate it.
Page 139 OPERATION 2. FIELD SETTING Field Settings P P A A R R A A M M E E T T E E R R V V A A L L U U E E & & R R E E P P R R E E S S E E N N T T A A T T I I O O N N P P A A R R A A M M E E T T E E R R P P A A R R A A M M E E T T E E R R N N O O T T E E...
Page 140 OPERATION 2. FIELD SETTING Field Settings 2.1.4 Running Parameter Query Running parameter can be referred to by 7 segment display or specified wired remote controller. Query by wired remote controller Operation: MODEL:YXE-C01U1(E) OPERATION: Hold down both "MODE" button and "ADD.FUNC." button for 3 seconds, symbol and parameter ( ( 1 1 ) ) number blinks at the same time.
Page 141: Function Setting
OPERATION 2. FIELD SETTING Field Settings 2.1.5 Instructions for ON/OFF Input Control and Output Control Functions and Settings (1) Function Introduction ● ON/OFF Input Control ON/OFF-1 Input Control (Saving Access Control Mode. ) It is a kind of control mode to control the machine startup & shutdown based on the on & off input signal.
Page 142: Detailed Description
2. FIELD SETTING OPERATION Field Settings Table 1 Field setting of indoor unit by the wired controller Field Output ON/OFF Input Control Control setting Red Line White Line 12V DC Output Wired ON OFF-1 ON OFF-2 ON OFF-3 ON OFF-4 ON OFF-5 ON OFF-6 Controller Installer need to do the field setting of indoor unit by the wired controller according to the table1.
Page 143 OPERATION 2. FIELD SETTING Field Settings ● Some project requirement of ON/OFF modes (1) Project requirement for ON/OFF-1 For some hotel projects, the air conditioner will turn off when people pull out the room card, then check out and leave the hotel. And the air conditioner will not turn on automatically when another people come in and inset the room card in the hourly room situation because the end user is always changing and the usage habit is different.
Page 144 OPERATION 2. FIELD SETTING Field Settings 2.2 Test Run 2.2.1 Preparation before test run and precautions Please turn oﬀ all power supplies and conﬁrm with a testing instrument whether all power supplies have been turned oﬀ. Before running, please proceed the following steps to inspect the installation status: (1) Structural damage inspect Conﬁrm whether there is no damage on the surface and interior of the equipment.
Page 145 OPERATION 2. FIELD SETTING Field Settings WARNING The machine can be started only after all checkpoints are checked without problems. (a) Check to ensure that the ground resistance of the wiring terminals exceeds 2 MΩ. Otherwise, ﬁnd out and rep the leaking part before starting the system. (b) Check and ensure that all stop valves of the outdoor unit are turned on before starting the system.
Page 146: Maintenance
MAINTENANCE...
Page 147 MAINTENANCE The following is a deep cleaning and must be completed by a professional. Usera are strictly forbidden operate privately, otherwise they will be at their own risk. Cut off the power supply by moving the power switch In the dlnictlon of the arrow.
Page 148 MAINTENANCE L'.h The followlng 18 a deep cleanlng and must be completed by a professlonal. L'.h Users ara strlctly forbidden to operate prlvately, otherwise they wlll be at their own risk. Remove the acrews of the air duct. (G poaltlon and H poaltlon) screws.
Page 149: Troubleshooting
3. TROUBLESHOOTING TROUBLESHOOTING Outdoor Unit 3. Troubleshooting Basic Troubleshooting 3.1 Trouble guide Troubleshooting Possible Reason of Abnormality How to Deal With Troubleshooting for normal malfunction 1. Power supply failure; 1. Check power supply circuit; 2. Trip of breaker or blown fuse℉ 2.
Page 150: Diagnostic Codes _ Intro
TROUBLESHOOTING Outdoor Unit Diagnostic Codes _ Intro (3) Fault codes indicated by LED lamps on display panel (9K/12K/18K) Lamp RUN (LED2, Red) and Lamp DEFROST (LED5, Green) flash. Lamp RUN displays fault code represented by 2- digit number, and lamp DEFROST displays fault code represented by single digit number (as shown fig.
Page 151 TROUBLESHOOTING 3. TROUBLESHOOTING Outdoor Unit Diagnostic Codes _ Intro Outdoor unit（（ Fault code displayed by LED lamps on outdoor main control board.）） DC-Inverter unitary (Main control board upside-down) Fault code displayed by LED lamps on outdoor main control board. There are 3 LED lamps on control board, LED1, LED2 and LED3.
Page 152: Outdoor Unit
TROUBLESHOOTING Outdoor Unit Diagnostic Codes _ Intro 3. TROUBLESHOOTING Outdoor unit Fault code displayed on checker board Fault code/drive fault code will be displayed on checker board. 7-segment display Display ERROR code shows failure occur Digital Display Switch Introduction It can be used to check outdoor running parameters.
Page 153 TROUBLESHOOTING Outdoor Unit 3. TROUBLESHOOTING Diagnostic Codes _ Intro There are 3 buttons on the digital display board： 1） SWITCH button：Indoor parameters and outdoor parameters can be selected in turn by pressing it. “ “ P P . . ” ” - - o o u u t t d d o o o o r r u u n n i i t t p p a a r r a a m m e e t t e e r r , , “ “ A. . ” ” - - i i n n d d o o o o r r u u n n i i t t p p a a r r a a m m e e t t e e r r ； 2) INCREASE button：Each time it is pressed, the number rises by 1,hold down it, the number will be rapidly increase;...
Page 154 TROUBLESHOOTING Outdoor Unit Diagnostic Codes _Main PCB Fault Fault description Possible reasons for abnormality How to deal with code Outdoor ambient 1. The outdoor ambient temperature sensor is connected 1. Reconnect the outdoor ambient temperature sensor. temperature sensor loosely. 2. Replace the outdoor ambient temperature sensor fault 2.
Page 155 TROUBLESHOOTING Outdoor Unit Diagnostic Codes _Main PCB Fault Fault description Possible reasons for abnormality How to deal with code Overload protection in 1. The refrigerant is excessive. 1. Discharge the refrigerant, and recharge the refrigerant cooling mode 2. The outdoor ambient temperature is too high. referring to the rating label.
Page 156 TROUBLESHOOTING Outdoor Unit Diagnostic Codes _Main PCB Fault Fault description Possible reasons for abnormality How to deal with code 4-way valve 1. The connecting wiring of the 4- way valve coil is loose; 1. Reconnect the wiring of the 4-way valve; commutation failure 2.
Page 157: Diagnostic Codes _Driver Faults
TROUBLESHOOTING Outdoor Unit Diagnostic Codes _Driver Faults Fault Fault description Possible reasons for abnormality How to deal with code Inverter DC voltage overload fault 1. Power supply input is too high or too low; 1. Check the power supply; 2. Control board fault. 2.
Page 158 TROUBLESHOOTING Outdoor Unit Diagnostic Codes _Driver Faults Fault Fault description Possible reasons for abnormality How to deal with code Saturation error of D axis current control integral 1. System overloads suddenly; 1. Check if the system is normal; 2. Compressor parameter is not suitable; 2.
Page 159 TROUBLESHOOTING Outdoor Unit Diagnostic Codes _Driver Faults Fault Fault description Possible reasons for abnormality How to deal with code IPM over- temperature fault 1. High outdoor ambient temperature; 1. Protect properly; 2. Improper installation of outdoor units; 2. Reinstall the outdoor unit according to the 3.
Page 160 TROUBLESHOOTING Outdoor Unit Diagnostic Codes _Driver Faults Fault Fault description Possible reasons for abnormality How to deal with code When the discharge temperature is too high, Control on discharge temperature expansion stop the valve opening getting narrower. valve. The compressor overloads. Control on the compressor output.
Page 161: Indoor Unit - Wall Mount
TROUBLESHOOTING Indoor Unit - Wall Mount Diagnostic Codes The indoor display board will show the error code automatically when the unit has the following trouble: Refer to the remote controller which the sleep key can set into 4 different combination ways , when using to check the error codes only takes effect for pressing the sleep key 10 times in ten seconds instead of 4 times.
Page 162: Unit Does Not Run
TROUBLESHOOTING Indoor Wall Mount 6.7.Diagnosis and Solution Unit Does Not Run Switch on the power supply Does it receive the Is the remote Does the screen remote controller controller display normally? signal? setting right? Is the fuse (5A/250V) burn? Check the code Is the remote controller in good Replace the batteries...
Page 163: Error Code 39-Dc Fan
TROUBLESHOOTING Indoor control board is fault Replace it. Indoor Wall Mount Error Code 39-DC Fan Error code 39 Indoor fan motor trouble DC Fan Set the air conditioner operate in fan mode Does fan motor Check the connector of stop following the Is indoor fan motor indoor motor connected remote controller...
Page 164 TROUBLESHOOTING Indoor Wallmount Error Code 36 E36 Error Does communica�on wiring meet speciﬁca�ons? Replace wiring 14 gauge stranded wiring rated as required. for 600v Are there any junc�on boxes or Replace wiring splices in the wiring except for as required. code required disconnects? Is Wiring connected to the proper terminals?
Page 165 TROUBLESHOOTING Indoor Wallmount Error Code 36 Figure 509...
Page 166: Blank Display/ Indoor Micro Switch
TROUBLESHOOTING Indoor Wallmount Blank Display/ Indoor Micro Switch If the Display is blank, check to see if the door is properly closed. If the door is properly closed, confirm that you have proper line voltage to the indoor unit. If the indoor unit door is not properly closed, or if the door micro switch has malfunctioned the display may be blank. See Figure 717 When the micro-switch is not engaged, and the power button is depressed, there will be no display and the system will not operate or respond in any way.
Page 167: Blank Display/Indoor Unit Door Micro Switch
TROUBLESHOOTING Indoor Wallmount Blank Display/Indoor Unit Door Micro Switch When the Timer On/Clock button is pressed you will see a temperature on the display, but still no system operation. After a few seconds, the display will drop the temperature leaving just the Wi-Fi and Timer icons. Still no indoor unit operation. See Figure 719. Fig.
Page 168: Indoor Unit Cassette And Ducted
TROUBLESHOOTING Indoor Unit Cassette and Ducted Diagnostic Codes Troubleshooting according to fault codes When the air conditioner failure occurs, the fault code will display on control board, wired controller or display panel. How to check fault codes Indoor unit (1)Error codes indicated by wire remote controller (see figure below) ERROR INDICATOR ERROR CODE When the air conditioner malfunctions,...
Page 169: Fault Code
TROUBLESHOOTING Indoor Unit Cassette and Ducted Diagnostic Codes (2) Fault codes indicated by display panel(36K/48K) Display panel Fault code (3) Fault codes indicated by LED lamps on display panel (9K/12K) Lamp RUN (LED2, Red) and Lamp DEFROST (LED5, Green) flash. Lamp RUN displays fault code represented by 2- digit number, and lamp DEFROST displays fault code represented by single digit number (as shown fig.
Page 170 TROUBLESHOOTING Indoor Unit Cassette and Ducted Diagnostic Codes Fault Fault description Possible reasons for abnormality How to deal with code Humidity sensor failure 1. The cable of the humidity sensor connect loose. 1. Reconnect the cable of the humidity sensor. 2.
Page 171: Checking Components
4. CHECKING COMPONENTS COMPONENTS TESTING 4. Checking Components Outdoor Unit 4.1 Check Refrigerant System Test system flow Conditions: ① Compressor is running. ② The air condition should be installed in good ventilation. Tool: Pressure Gauge Technique: ① see ② feel ③ test See ----- Tube defrost.
Page 172: Check Parts Unit
COMPONENTS TESTING 4. CHECKING COMPONENTS Outdoor Unit Heating mode Test system pressure. Is the high The pressure on the pressure normal at high side. service part ? Recharge refrigerant Remove the back The pressure on the after air purging with panel."see"the low side.
Page 173 COMPONENTS TESTING 4. CHECKING COMPONENTS Outdoor Unit 1 1 . . D D C C M M o o t t o o r r ( ( I I n n d d o o o o r r u u n n i i t t ) ) a.
Page 174 U-V: 1.419Ω 4. CHECKING COMPONENTS COMPONENTS TESTING 9K/12K U-W: 1.419Ω ±5% 2410469 V-W: 1.419Ω Outdoor Unit U-V: 0.986Ω Notes： U-W: 0.986Ω ±5% 2410440 V-W: 0.986Ω 1) Don’t put a compressor on its side or turn over. 2) Please assemble the compressor in your air conditioner rapidly after removing the plugs. Don’t place the comp.
Page 175 4. CHECKING COMPONENTS COMPONENTS TESTING Outdoor Unit 6. Water pump Test results: D D u u c c t t t t y y p p e e C C a a s s s s e e t t t t e e t t y y p p e e Use the multimeter to test resistance M M o o d d e e l l N N o o r r m m a a l l t t e e s s t t r r e e s s u u l l t t s s...
Page 176 3) Avoid compressor running in reverse caused by connecting electrical wire incorrectly. 4. CHECKING COMPONENTS COMPONENTS TESTING 4) Warning! In case AC voltage is impressed to compressor, the compressor performance will decrease because of its rotor magnetic force decreasing. Outdoor Unit Use the multimeter to test resistance between two terminals at 68℉(20℃) 9.
Page 177: Cassette- Ducted
COMPONENTS TESTING Cassette- Ducted Key components Key components DC Motor (Indoor unit) Water Pump Water Switch Pressure Switch Step motor 1 1 . . D D C C M M o o t t o o r r ( ( I I n n d d o o o o r r u u n n i i t t ) ) a.
Page 178 COMPONENTS TESTING Cassette- Ducted 8. Pressure switch The pressure switch is divided into normally closed and normally open types (under atmospheric pressure), such as YK-4.0/3.4 is normally closed, and YK-2.85/3.6 and YK-0.05/0.15 are normally open. Normally closed switch detection: With no pressure in the pipeline, you can turn a multimeter to the ohm range and connect the red and black probes with a pin (lead) respectively to detect whether the switch is in the "ON"...
Page 179: Indoor Unit (Wall Mount) Main Pcb Terminal Id (No A2L Sensor Connection)
COMPONENTS TESTING Indoor Unit (Wall Mount) Main PCB Terminal ID (No A2L Sensor Connection) Evaporator Coil Indoor Ambient Indoor Fan Door Safety Vertical Louver Horizontal Louver Auto Start Switch Temp Sensor Temp Sensor (X821) Motor (X842) Switch (X412) (X823) (SW 101) (X413) (X405) L2 In/Out...
Page 180: Indoor Unit (Wall Mount) Main Pcb Terminal Id (A2L Sensor Connection)
COMPONENTS TESTING Indoor Unit (Wall Mount) Main PCB Terminal ID (A2L Sensor Connection) Indoor Fan Door Safety Evaporator Coil Indoor Ambient Vertical Louver Wired Controller Horizontal Louver Switch (X412) Temp Sensor Temp Sensor (X950) (X823) Motor (X842) (X821) (X413) (X405) L2 In/Out switch input A2L Sensor...
Page 181: Indoor Fan Motor
COMPONENTS TESTING Indoor Fan Motor Power Check: 1. Turn unit on. WARNING 2. Check indoor fan connector on main PCB. There are 5 wires: ELECTRIC SHOCK HAZARD Voltage for Power (Red) to Ground (Black) = 310 VDC Turn off electric power before service or Motor Return Voltage (White) to Ground (Black) = 15 VDC installation.
Page 182: Component Testing
COMPONENT TESTING Reversing Valve A reversing valve is a component of a heat pump that changes the direction of refrigerant flow, allowing the system to function in both heating and cooling WARNING modes. It consists of a pressure-operated, main valve and a pilot valve actuated by ELECTRIC SHOCK HAZARD a solenoid plunger.
Page 183: Ducted Unit 9-12K Btu - Main Pcb Id
Duct type COMPONENTS TESTING 9K/12K Ducted Unit 9-12k BTU - Main PCB ID Description Description Pump Motor Refrigerant Interface Terminal Block WIFI Interface DC-Fan Motor Ambient Temperature Sensor Humidity Sensor Water Switch Coil Temperature Sensor Door ON/OFF Input or Fire Input Wired Controller 12V-Output Display Interface...
Page 184: Ducted Unit 18K Btu - Main Pcb Id
COMPONENTS TESTING Ducted Unit 18k BTU - Main PCB ID 11 10 Description Description Display Interface DC Fan Motor Earth line N-In Line Wired Controller Water Switch L-In Line Si Line Ambient Temperature Sensor Coil Temperter Sensor Pump Motor Humidity Sensor Refrigerant Interface Door ON/OFF Input or Fire Input 12V-Output...
Page 185: Cassette Unit - Main Pcb Id
COMPONENTS TESTING Cassette Unit - Main PCB ID 2 3 4 5 6 7 8 10 11 Description Description Heater Refrigerant Interface WIFI Interface STEP Motor IR SENSOR STEP Motor Ambient Temperature Sensor Wired Controller Coil Temperature Sensor Humidity Sensor Pump Water Level L-in/ N-in /Si Line...
Page 186: Outdoor Unit -9-12K Btu Main Pcb Id
9K/12K COMPONENTS TESTING Outdoor Unit -9-12k BTU Main PCB ID 2 3 4 5 6 7 Description Description EE-PRG Flash Checker Electronic Expansion Valve Overheat Protector DC Fan Motor Discharge Temperature Sensor Base Heater Interface Heating Belt Interface Coil Temperature Sensor 4-Way Valve Circuit and Interface Ambient Temperature Sensor Figure 604...
Page 187: Outdoor Unit - 18K Btu Main Pcb Id
COMPONENTS TESTING 18K/24K Outdoor Unit - 18k BTU Main PCB ID 1 2 3 4 5 6 7 8 9 Description Description Crankcase Heater High Pressure Switch 4-way Valve Overheat Protector Base Heater Press Sensor Communication Signal between IDU&ODU Coil Temperature Sensor AC Power Lin / AC Power Nin EEPROM Discharge Temperature Sensor...
Page 188: Disassembly Procedure
5.DISASSEMBLY PROCEDURE DISASSEMBLY Outdoor unit Outdoor Unit 9K/12K/18K Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free. Step Illustration Handling Instruction 1.Remove the top cover and handle; 1.Remove external casing 2.Remove the outer case and valve mounting plate.
Page 189: Indoor Unit (Ducted 9K/12K)
DISASSEMBLY 5.2 Indoor unit Duct type 9K/12K Indoor Unit (Ducted 9k/12k) Removal and Assembly of Fan Motor Important: Before removing the fan, make sure power to the system is disconnected. Step Illustration Handling Instruction Use screwdriver to remove the 1. Unplug the motor electric box cover and unplug the cables motor cables in the electric box.
Page 190: Indoor Unit (Ducted 18K)
DISASSEMBLY Duct type 18K/24K Indoor Unit (Ducted 18k) Removal and Assembly of Fan Motor Important: Before removing the fan, make sure power to the system is disconnected. Step Illustration Handling Instruction Use screwdriver to remove the electric 1. Unplug the motor box cover and unplug the motor cables cables in electric box.
Page 191: Indoor Unit (Cassette 9K-12K)
DISASSEMBLY Cassette type 9K/12K Indoor Unit (Cassette 9k-12k) Replacement of Fan Motor Step Illustration Handling Instruction 1. Loosen the screws Use screwdriver to loosen the holding condensate pan. screws holding the drain pan in place. 2. Remove the Carefully remove the condensate pan. condensate pan 3.
Page 192 5.DISASSEMBLY PROCEDURE DISASSEMBLY Indoor Unit (Cassette 9k-12k) Cassette type 9K/12K Replacement of Fan Motor Illustration Step Handling Instruction 6. Remove the motor Remove the motor and replace it. and replace it Use a wrench or socket to 7. Tighten the bolts carefully tighten the motor bolts.
Page 193 5.DISASSEMBLY PROCEDURE DISASSEMBLY Indoor Unit (Cassette 9k-12k) Cassette type 9K/12K Removal and Installation of Condensate Pump Step Illustration Handling Instruction Use screwdriver to loosen the 1. Loosen the screws screws holding the drain pan in place. holding condensate pan 2. Remove the Carefully remove the condensate pan.
Page 194 5.DISASSEMBLY PROCEDURE DISASSEMBLY Indoor Unit (Cassette 9k-12k) Cassette type 9K/12K Removal and Installation of Condensate Pump Illustration Step Handling Instruction Use a screwdriver to tighten the 6. Tighten the screws screws holding the condensate holding the condensate pump in place. pump 7.
Page 195: Indoor Unit (Cassette 18K)
5.DISASSEMBLY PROCEDURE DISASSEMBLY Cassette type 18K/24K/36K Indoor Unit (Cassette 18k) Handling Instruction Step Illustration Use screwdriver to 1. Loosen the screws loosen the electric box. holding the electric box cover and electric box. 2. Loosen the screws Use screwdriver to loosen the screws holding the air holding the guard filter guiding in place.
Page 196: R-454B Sealed System Repair
R-454B SEALED SYSTEM REPAIR 3. Refrigerant Cycle Diagram Refrigerant Cycle INDOOR UNIT List of component Apellation Cooling cycle Hexagon nut Heating cycle Split capillary Indoor heat exchanger Coil temperature sensor Ambient temperature sensor Refrigerant leakage sensor OUTDOOR UNIT List of component Cooling cycle Apellation Heating cycle...
Page 197: General Information
R-454B SEALED SYSTEM REPAIR General Information WARNING: Electrical Shock Hazard Disconnect all power to the unit before starting maintenance. All electrical connections and wiring MUST be installed by a qualiﬁed electrician and conform to all codes which have jurisdiction. Failure to do so can result in property damage, severe electrical shock or death.
Page 198 R-454B SEALED SYSTEM REPAIR General Information Warning: No ignition sources: No person carrying out work in relation to a REFRIGERATING SYSTEM which involves exposing any pipe work shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing and disposal, during which refrigerant can possibly be released to the surrounding space.
Page 199: Required Equipment
R-454B SEALED SYSTEM REPAIR Required Equipment • Recovery access tool. • Purge hose fittings Pinch off and opening tools • ABC Fire Extinguisher Recovery Machine Vaccum Pump Nitrogen Guage Manifold Vaccum Guage Nitrogen Regulator Recovery access tool Pinch off and opening tools Purge hose fittings Process tube adapter kit...
Page 200: Refrigerant Removal, Recovery, And Evacuation
R-454B SEALED SYSTEM REPAIR Refrigerant Removal, Recovery, and Evacuation NOTE: When accessing the refrigerant in the system to make repairs or for any other purpose, conventional procedures shall be used. However, for FLAMMABLE REFRIGERANTS (R-454B is classified in the A2L group for mildly flammable refrigerants) it is important that best practice is followed since flammability is a consideration.
Page 201: Component Replacement/Brazing
R-454B SEALED SYSTEM REPAIR Component Replacement/Brazing Warning: • Ensure sufficient ventilation at the repair place. Warning: Presence of fire extinguisher. If any hot work is to be conducted on the refrigerating equipment or any associated parts, have a ABC class fire extinguisher available to hand.
Page 202: Refrigerant Charging
R-454B SEALED SYSTEM REPAIRS Refrigerant Charging WARNING: Electrical Shock Hazard Disconnect all power to the unit before starting maintenance. All electrical connections and wiring MUST be installed by a qualiﬁed electrician and conform to all codes which have jurisdiction. Failure to do so can result in property damage, severe electrical shock or death. WARNING: This Product uses R-32 Refrigerant Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
Page 203 Triple Evacuation Friedrich requires all installations are Leak Checked and Evacuated in accordance to the “triple evacuation” process. This process promotes a dry tight refrigeration system before opening the service valves. It recommended that a single port refrigeration manifold and hoses rated over 31.5 psi be used.
Page 204: Compressor Replacement
R-454B SEALED SYSTEM REPAIRS Compressor Replacement 1. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing. 2. Recover all refrigerant from the system though the process tubes. Refer to Refrigerant Removal, Recovery, and Evacuation Section of this WARNING...
Page 205: Replace The Reversing Valve
R-454B SEALED SYSTEM REPAIR Replace The Reversing Valve WARNING WARNING HIGH PRESSURE HAZARD EXPLOSION HAZARD Sealed Refrigeration System contains refrigerant The use of nitrogen requires a pressure and oil under high pressure. regulator. Follow all safety procedures and wear protective safety clothing etc. Proper safety procedures must be followed, and PPE must be utilized Failure to follow proper safety procedures...
Page 206: Wiring Diagrams
WIRING DIAGRAMS Indoor Unit Wall Mount FAHFW09A3D, FAHFW12A3D, FAHFW18A3D (No A2L sensor connection) Figure 801...
Page 207: Fahfw09A3D, Fahfw12A3D, Fahfw18A3D (With A2L Sensor Connection)
WIRING DIAGRAMS Indoor Unit Wall Mount FAHFW09A3D, FAHFW12A3D, FAHFW18A3D (With A2L sensor connection) Figure 802...
Page 208: Ducted 9K &12K
4. Wiring Diagram WIRING DIAGRAMS 4.1 Electrical Wiring Diagrams Indoor Unit Ducted 9k &12k Indoor unit Duct type 9K/12K Electric wiring diagram 2416593, A USE COPPER SUPPLY WIRES Figure 803...
Page 209: Ducted 18K
WIRING DIAGRAMS 4. WIRING DIAGRAM Indoor Unit Ducted 18k 18K/24K/36K Electric wiring diagram 2414390, A USE COPPER SUPPLY WIRES Figure 804...
Page 210: Cassette 9K -12K
4. WIRING DIAGRAM WIRING DIAGRAMS Indoor Unit Cassette type Cassette 9k -12k 9K~36K Electric wiring diagram 2415798, A Figure 805...
Page 211: Wiring Diagram
4. WIRING DIAGRAM WIRING DIAGRAMS Indoor Unit Cassette type 9K~36K Cassette 18k Electric wiring diagram 2415798, A...
Page 212: Outdoor Unit 9-12K Btu
9K/12K WIRING DIAGRAMS Outdoor Unit 9-12k BTU Electric wiring diagram 2415532, B...
Page 213: Outdoor Unit 18K Btu
WIRING DIAGRAMS Outdoor Unit 18k BTU Electric wiring diagram 2423942, C 1(L) 2(N) 4(SI)
Page 214: Appendix
APPENDIX Interactive Parts Viewer All Friedrich Service Parts can be found on our online interactive parts viewer. Please click on the link below: Interactive Parts Viewer For Further Assistance contact Friedrich customer service at (1-800-541-6645). Limited Warranty Current warranty information can be obtained by referring to...
Page 215: Sensor Parameter
4. CHECKING COMPONENTS APPENDIX 4.3 Sensor Parameter Compressor Discharge Temp Sensor Resistance Values 1. THE PARAMETER OF OUTDOOR COMPRESSOR DISCHARGE TEMPERATURE SENSOR: =187.25K±6.3%；R =3.77K±2.5K；B0/100=3979K±1%）（R T T [ [ ℃ ℃ ] ] R R m m i i n n [ [ K K Ω Ω ] ] R R n n o o m m [ [ K K Ω...
Page 216 APPENDIX 4. CHECKING COMPONENTS Compressor Discharge Temp Sensor Resistance Values T T [ [ ℃ ℃ ] ] R R m m i i n n [ [ K K Ω Ω ] ] R R n n o o m m [ [ K K Ω Ω ] ] R R m m a a x x [ [ K K Ω...
Page 217 APPENDIX 4. CHECKING COMPONENTS Compressor Discharge Temp Sensor Resistance Values R R m m i i n n [ [ K K Ω Ω ] ] R R n n o o m m [ [ K K Ω Ω ] ] R R m m a a x x [ [ K K Ω...
Page 218 APPENDIX 4. CHECKING COMPONENTS Coil and Ambient Temp Sensor Resistance Values 2. THE PARAMETER OF THE OTHER SENSOR： =15K±2%；B0/100=3450K±2%) R R m m i i n n [ [ K K Ω Ω ] ] R R n n o o m m [ [ K K Ω Ω ] ] R R m m a a x x [ [ K K Ω...
Page 219 APPENDIX 4. CHECKING COMPONENTS Coil and Ambient Temp Sensor Resistance Values R R m m i i n n [ [ K K Ω Ω ] ] R R n n o o m m [ [ K K Ω Ω ] ] R R m m a a x x [ [ K K Ω...
Page 220 APPENDIX 4. CHECKING COMPONENTS Coil and Ambient Temp Sensor Resistance Values T T [ [ ℃ ℃ ] ] R R m m i i n n [ [ K K Ω Ω ] ] R R n n o o m m [ [ K K Ω Ω ] ] R R m m a a x x [ [ K K Ω...
Page 221: Friedrich Authorized Parts Depots
APPENDIX Friedrich Authorized Parts Depots United Products Distributors Inc. The Gabbert Company Reeve Air Conditioning, Inc. 4030A Benson Ave 2501 South Park Road 6868 Ardmore Hallandale, Florida 33009 Halethorpe, MD 21227 Houston, Texas 77054 888-907-9675 954-962-0252 c.businsky@updinc.com 713-747-4110 800-962-3383 800-458-4110 Shivani Refigeration &...

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Friedrich Floating Air Pro X FPHFR09A3D Service Manual

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