Carrier 40MFC, 38MFC, 38MFQ, 40MFQ Service Manual

40MFC / 38MFC 40MFQ / 38MFQ High---Wall Ductless Split System Sizes 009 to 022

Service Manual

TABLE OF CONTENTS

PAGE

SAFETY CONSIDERATIONS 1.........................

INTRODUCTION 1...................................

MODEL / SERIAL NUMBER NOMENCLATURE 2.........

STANDARD FEATURES AND ACCESSORIES 3...........

SPECIFICATIONS -- COOLING ONLY (MFC) 4............

SPECIFICATIONS -- HEAT PUMP UNITS (MFQ) 5.........

DIMENSIONS 6......................................

SERVICE VALVE LOCATIONS 6........................

CLEARANCES 7.....................................

SYSTEM OPERATING ENVELOPE 8....................

ELECTRICAL DATA 8................................

WIRING 9...........................................

CONNECTION DIAGRAMS 9..........................

WIRING DIAGRAMS 10...............................

REFRIGERATION CYCLE DIAGRAM 14.................

REFRIGERANT LINES 15.............................

SYSTEM EVACUATION AND CHARGING 15.............

CONTROL SYSTEM 16...............................

SYSTEM SAFETIES 17...............................

SEQUENCE OF OPERATION 17........................

MODES OF OPERATION 18............................

TROUBLESHOOTING 20..............................

APPENDIX 32.......................................

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air--conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.).

Only trained, qualified installers and service mechanics should install, start--up, and service this equipment.

Untrained personnel can perform basic maintenance functions such as cleaning coils. All other operations should be performed by trained service personnel.

When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment.

Follow all safety codes. Wear safety glasses and work gloves. Keep quenching cloth and fire extinguisher nearby when brazing. Use care in handling, rigging, and setting bulky equipment.

Read this manual thoroughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements. Recognize safety information. This is the

safety--alert symbol in instructions or manuals, be alert to the potential for personal injury.Understand these signal words: DANGER, WARNING, and CAUTION. These words are used with the safety --alert symbol. DANGER identifies the most serious hazards which will result in

. When you see this symbol on the unit and

severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label.

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

Do not bury more than 36 in. (914 mm) of refrigerant pipe in the ground. If any section of pipe is buried, there must be a 6 in. (152 mm) vertical rise to the valve connections on the outdoor units. If more than the recommended length is buried, refrigerant may migrate to the cooler buried section during extended periods of system shutdown. This causes refrigerant slugging and could possibly damage the compressor at start--up.

WARNING

EXPLOSION HAZARD

Failure to follow this warning could result in death, serious personal injury, and/or property damage.

Never use air or gases containing oxygen for leak testing or operating refrigerant compressors. Pressurized mixtures of air or gases containing oxygen can lead to an explosion.

CAUTION

INTRODUCTION

This Service Manual provides the necessary information to service, repair, and maintain the 38--40MF family of Puron air conditioners and heat pumps. Section 2 of this manual is an appendix with data required to perform troubleshooting. Use the Table of Contents to locate a desired topic.

MODEL / SERIAL NUMBER NOMENCLATURES

INDOOR UNIT

40= Fan Coil Unit

38 = A i r --- C o o l e d Conde n se r

40 MFC 1

Unit Type MFC --- C o o l i n g O n l y MFQ --- H e a t P u m p

009

Nominal Capacity 009 --- 3 / 4 To n 012 --- 1 Ton 017 --- 1 --- 3 / 7 To n ( H P ) 018 --- 1 --- 1 / 2 To n ( A C ) 022 --- 1 --- 5 / 6 To n s

--- --- ---

OUTDOOR UNIT

38 MFC 1

Unit Type MFC --- C o o l i n g O n l y MFQ --- H e a t P u m p

009

Nominal Capacity 009 --- 3 / 4 To n 012 --- 1 Ton 017 --- 1 --- 3 / 7 To n ( H P ) 018 --- 1 --- 1 / 2 To n ( A C ) 022 --- 1 --- 5 / 6 To n s

--- --- ---

Volt age 1 --- 1 1 5 --- 1 --- 60 3 --- 2 0 8 --- 230 --- 1 --- 60

Volt age 1--- 1 1 5 --- 1 --- 6 0 3--- 2 0 8 --- 2 3 0 --- 1 --- 60

Week of Manufacture

Year of Manufacture

Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program For verification of certification for individual products, go to www.ahridirectory.org.

01 06

Manufacturing Site

00001

Serial Number

STANDARD FEATURES AND ACCESSORIES

Ease Of Installation

Mounting Brackets S Low Voltage Controls S

Comfort Features

Microprocessor Controls S Wired Remote Control A Wireless Remote Control S Automatic Horizontal Air Sweep S Air Direction Control S Auto Restart Function S Cold Blow Protection On Heat Pumps S Freeze Protection Mode On Heat Pumps S Turb o Mode S Silence Mode S Auto Changeover On Heat Pumps S

Energy Saving Features

Sleep Mode S Stop/Start Timer S

Safety And Reliability

3MinuteTimeDelayForCompressor S Over Current Protection For Compressor S Indoor Coil Freeze Protection S Indoor Coil High Temp Protection in Heating Mode S Condenser High T emp Protection in Cooling Mode S

Ease Of Service And Maintenance

Cleanable Filters S Diagnostics S Liquid Line Pressure Taps S

Application Flexibility

Condensate Pumps A Crankcase Heater S

Legend

SStandard A Accessory

INDOOR UNITS

On high wall fan coils, the condensate pump has a lift capability of 12 ft (3.6 m) on the discharge side with the pump mounted in the fan coil or 6 ft (1.8 m) on the suction side if the pump is remote mounted. The pump is recommended when adequate drain line pitch cannot be provided, or when the condensate must move up to exit.

NOTE: An external 115v power source will be required to run the pump on unit sizes 9k and 12k.

OUTDOOR UNITS

Crankcase Heater

Standard on all unit sizes. Heater clamps around compressor oil stump.

A07892

Fig. 1 – Condensate Pump Accessory

SPECIFICATIONS -- COOLING ONLY UNITS (MFC SERIES)

System

Size (KBTU/Hr) 09 12 18 22 Outdoor Model 38MFC009---1 38MFC012---1 38MFC012---3 38MFC018---3 38MFC022---3 Indoor Model 40MFC009---1 40MFC012---1 40MFC012---3 40MFC018---3 40MFC022---3

AHRI Performance Ratings*

Cooling Rated Capacity Btu/h 9,000 12,000 18,000 22,000 Cooling Cap. Range Min - Max Btu/h 4,000-10,000 4,500-13,000 5,500-19,000 6,500-24,000 SEER 15 EER 10 9 8.5 10

Operating Range

Cooling O utdoor DB Min - Max °F 14 - 115 Cooling Indoor DB Min -Max °F 63 - 90

Controls

Wireless (°C, °F, Convertible) Standard - Convertible Wired (°C, °F, Convertible) Optional: KSACN0101CAC

Electrical

System Voltage-PH-Hz 115 -1 -60 208-230-1-60 Control Voltage 0-15V DC Power Supply Indoor unit powered from outdoor unit Outdoor - MCA 19 19 10 14 16 Outdoor - Fuse Rating (MOCP) 30 30 15 20 25

Outdoor Motor

Rpm/CFM 1000 / 945 940 / 945 860 / 1050 930 / 1390 Diameter (in) ... No. of Blades 15.8 … 3 16.7 … 3 18.3 … 3 Motor (hp) 0.31 0.33 0.68 0.72 Capacitor (µF) / voltage 6 / 250V 2.5 / 400 - 450v 2.5 / 450v

Indoor Motor

Motor Watts/ HP 15 / 0.02 15 / 0.02 20 / 0.027 28 / 0.038 45 / 0.061 Rpm/CFM (High) 1200 / 192 1200 / 230 1200 / 232 1200 / 348 1200 / 547 Rpm/CFM (Medium) 1050 / 160 1050 / 194 1050 / 193 1050 / 294 1050 / 458 Rpm/CFM (Low) 900 / 131 900 / 158 900 / 157 900 / 236 900 / 368 Blower Diameter / Length (in) 3.7 / 21.3 3.9 / 28.7 4.2 / 30.7 Capacitor (µF) 3 1.5 3

Refrigerant

Refrigerant Type R410A Design Pressure (PSIG) 550 Metering Device Capillary Tube in Outdoor Unit Charge (lb) 1.34 1.43 1.87 2.60

Refrigerant Lines

Connection Type Flare Pipe Connection Size - Liquid (In) OD 1/4 3/8 Pipe Connection Size - Suction (In) OD 3/8 1/2 5/8 Condensate Drain OD / ID (in) 0.65 / 0.63 Maximum Piping Length (ft) 65 98 Max Lift (Fan Coil Above) (ft) 25 30 Max Drop (Fan Coil Below) (ft) 25 30

Compressor

Type Rotary Model DA108X1C-20FZ3 DA130M1C-31FZ DA150S1C-20FZ Oil Charge (POE –oz (g)) 16.9 (480) 17.6 (500) Capacitor 45µF / 250VAC 6µF / 450VAC None Rated Current (RLA) 5.3 3.95 9.7 Locked Rotor Amp (LRA) 10 14 17

Outdoor Coil

Face Area (sq. ft.) 4.10 6.10 7.67 11.16 No. Rows 1 1.5 2 Fins per inch 21 Circuits 2 4

Indoor Coil

Face Area (sq. ft.) 2.53 2.98 1.61 5.29 No. Rows 1/2 2 Fins per inch 20 21 Circuits 2 4 5

Dimensions - Outdoor

Dimensions(WXHXD)In 35.8 x 23 x 13.2 34.9 x 25.4 x 14 38.0 x 29.7 x 15.6 NetWeight(lbs.) 58.4 61.7 76.0 98.1

Dimensions - Indoor

Dimensions(WXHXD)In 26.8 x 10.0 x 7.0 30.3 x 10.0 x 7.4 35.6 x 10.8 x 7.8 40.6 x 12.4 x 8.6 NetWeight(lbs.) 15.4 16.5 19.8 26.4

*Air Conditioning, Heating & Refrigeration Institute

--- Ratings are net values reflecting the effects of circulating fa n he at. Ratings are

based on: Cooli ng Standard: 80_F (26.67_C) db, 67_F (19.44_C) wb air entering indo or unit and 95_F(35_C) db air entering outdoor unit. High Temperature Heating Standard: 70_F (21.11_C) db air entering indo or unit and 47_F (8.33_C) db, 43_F (6.11_C) wb a ir entering outdoor unit.

--- Ratings are based on 25 ft. (7.62 m) of interconnecting refrigerant lines.

--- All system ratings are based on fan coil units operating at high fan speed. Consult Specification tables for airflows at all available fan speeds.

Legend SEER --- Seasonal Energy Efficiency Ratio EER --- Energy Efficiency Ratio MCA --- Minimum Circuit Amps MOCP --- M a x . Ove r --- C u r ren t P r o tec t i o n

SPECIFICATI ONS -- HEAT PUMP UNITS (MFQ SERIES)

System

Size (KBTU/Hr) 09 12 17 22 Outdoor Model 38MFQ009---1 38MFQ012---1 38MFQ012---3 38MFQ017---3 38MFQ022---3 Indoor Model 40MFQ009---1 40MFQ012---1 40MFQ012---3 40MFQ017---3 40MFQ022---3

AHRI Performance Ratings*

Cooling Rated Capacity Btu/h 9,000 12,000 17,000 22,000 Cooling Cap. Range Min - Max Btu/h 4,000-10,000 4,500-13,000 5,500-19,000 6,500-24,000 SEER 15 EER 10.5 10 9 9.5 Heating Rated Capacity Btu/h 9,000 12,000 18,000 22,000 Heating Cap. Range Min - Max Btu/h 4,000-10,500 4,500-13,000 5,500-19,500 6,500-24,500 HSPF 8.2 COP Btuh, W 8.1 8.0 9.7

Operating Range

Cooling O utdoor DB Min - Max °F 14 - 115 Heating Outdoor DB Min - Max °F 5-75 Cooling Indoor DB Min - Max °F 63 - 90 Heating Indoor DB Min - Max °F 32 - 86

Controls

Wireless (°C, °F, Convertible) Standard - Convertible Wired (°C, °F, Convertible) Optional: KSACN0101CAC

Electrical

System Voltage-PH-Hz 115 -1 -60 208-230-1-60 Control Voltage 0-15V DC Power Supply Indoor unit powered from outdoor unit Outdoor - MCA 19 10 14 16 Outdoor - Fuse Rating (MOCP) 30 15 20 25

Outdoor Motor

Rpm/CFM 1000 / 945 940 / 945 860 / 1050 930 / 1390 Diameter (in) ... No. of Blades 15.8 … 3 16.7 … 3 18.3 … 3 Motor (hp) 0.31 0.33 0.68 0.72 Capacitor (µF) 6 2.5

Indoor Motor

Refrigerant

Refrigerant Type R410A Design Pressure (PSIG) 550 Metering Device Capillary Tube in Outdoor Unit Charge (lb) 2.6 2.87 3.52

Refrigerant Lines

Compressor

Type Rotary Model DA108X1C-20FZ3 DA130M1C-31FZ DA150S1C-20FZ Oil Charge (POE –oz (g)) 16.9 (480) 17.6 (500) Capacitor 45µF / 250VAC 6µF / 450VAC None Rated Load Amps (RLA) 5.3 3.95 9.7 Locked Rotor Amp (LRA) 10 14 17

Outdoor Coil

Face Area (sq. ft.) 8.19 7.81 11 No. Rows 2 Fins per inch 17 18 Circuits 3 4

Indoor Coil

Face Area (sq. ft.) 2.53 2.98 1.61 5.29 No. Rows 1/2 2 Fins per inch 20 21 Circuits 2 4 5

Dimensions - Outdoor

Dimensions(WXHXD)In 35.8 x 23 x 13.2 34.9 x 25.4 x 14 38.0 x 29.7 x 15.6 NetWeight(lbs.) 70.5 82.7 103.6

Dimensions - Indoor

Dimensions(WXHXD)In 26.8 x 10.0 x 7.0 30.3 x 10.0 x 7.4 35.6 x 10.8 x 7.8 40.6 x 12.4 x 8.6 NetWeight(lbs.) 15.4 16.5 19.8 26.4

*Air Conditioning, Heating & Refrigeration Institute

--- Ratings are net values reflecting the effects of circulating fa n he at. Ratings are based on: Cooli ng Standard: 80_F (26.67_C) db, 67_F (19.44_C) wb air entering indo or unit and 95_F(35_C) db air entering outdoor unit. High Temperature Heating Standard: 70_F (21.11_C) db air entering indo or unit and 47_F (8.33_C) db, 43_F (6.11_C) wb a ir entering outdoor unit.

--- Ratings are based on 25 ft. (7.62 m) of interconnecting refrigerant lines.

--- All system ratings are based on fan coil units operating at high fan speed. Consult Specification tables for airflows at all available fan speeds.

Legend SEER --- Seasonal Energy Efficiency Ratio EER --- Energy Efficiency Ratio HSPF --- Heating Seasonal Performance Factor COP --- Coefficient of Performance MCA --- Minimum Circuit Amps MOCP --- M a x . Ove r --- C u r ren t P r o tec t i o n

DIMENSIONS -- INDOOR

Unit Size W in (mm) D in (mm) H in (mm) Operating Weight lb (kg)

9K 26.8 (680) 7.0 (178) 10.0 (255) 15.4 (7)

12K 30.3 (770) 7.4 (188) 10.0 (255) 16.5 (7.5)

17K HP / 18K AC 35.6 (905) 7.8 (198) 10.8 (275) 19.8 (9)

22K 40.6 (1030) 8.6 (218) 12.4 (315) 26.4 (12)

DIMENSIONS -- OUTDOOR

A14343

Model W in (mm) D in (mm) H in (mm) L1 in (mm) L2 in (mm)

Operating

Weight lb (kg)

9K/12K 30.7 (780) 9.8 (250) 21.2 (540) 21.6 (549) 10.9 (276) 70.5 (32.0)

17K HP / 18K AC 29.9 (760) 11.2 (285) 23.2 (590) 20.9 (530) 11.4 (290) 82.7 (37.5)

22K 33.3 (845) 12.6 (320) 27.6 (700) 22.1 (560) 13.2 (335) 103.6 (47.0)

SERVICE VALVE LOCATIONS

9/12K

17/18K

22K

A14344

Service Valve Locations

J 4.37 (111) 4.37 (111) 4.09 (104) 4.13 (105) K 4.61 (117) 4.61 (117) 6.34 (161) 4.13 (105)

in. (mm)

12K

in. (mm)

18K

in. (mm)

A14408

22K

in. (mm)

CLEARANCES -- INDOOR

(0.13m)

min.

CEILING

6" (0.15m) min.

(1.8m)

FLOOR

Fig. 2 – Indoor Unit Clearance

(0.13m)

min.

A07891

CLEARANCES -- OUTDOOR

Air-outlet

UNIT

A 24 (610)

B 24 (610) C 80 (2032)

D 12 (305) E 24 (610)

Fig. 3 – Outdoor Unit Clearance

Minimum Value

in. (mm)

Air-inlet

A07894

SYSTEM OPERATING ENVELOPE

5°F 75°F

32°F

86°F

14°F 115 °F

63 °F

90°F

-23-18-13-8 -3 2 7 12172227323742475257

-1

100

110

120

-10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140

Outdoor Temperature (°C)

Indoor Temperature (°C)

Indoor Temperature (°F)

Outdoor Temperature (°F)

Heang Connuous

Operaon

Cooling Connuous

Operaon

NOTE: If the system operates beyond the conditions presented in this envelope, certain safety protection features may operate and cause the system to operate abnormally. Optimum performance will be achieved during this operating temperature envelope.

ELECTRICAL DATA

OPER.

UNIT SIZE

12K

017K (HP)

018K (AC)

22K 9.7 17 0.6 0.72 53 0.4 0.061 45 16 25

*Permissible limits of the voltage range at which the unit will operate satisfactorily

LEGEND FLA --- F u l l Lo a d Am p s LRA --- L o c k e d R o t o r A m p s MCA --- Minimum Circuit Amps RLA --- Ra te d L o a d A m p s

VOLTAGE

MAX / MIN*

127 / 104 115--- 1 --- 6 0 5.3 10 1 15 ---1 --- 6 0 0.7 0.31 23 11 5 --- 1 --- 6 0 0.3 0.020 15 19 30

253 / 187 2 0 8 --- 23 0 --- 1 --- 6 0

COMPRESSOR OUTDOOR FAN INDOOR FAN

V --- P H --- H Z RLA LRA V --- P H --- HZ FLA HP W V --- P H --- H Z FLA HP W

5.3 10

3.95 14 0.6 0.68 50 0.3 0.038 28 14 20

Fig. 4 – System Operating Envelope

0.3 0.33 24

2 08 --- 2 30 ---1 ---6 0

MAX FUSE

0.2 0.027 20 10 15

MCA

CB AMP

A14466

WIRING

Recommended Connection Method for Power and Communication Wiring (To minimize communication wiring ence)

Power Wiring:

The main power is supplied to the outdoor unit. The field supplied connecting cable from the outdoor unit to indoor unit consists of three (3) wires and provides the power for the indoor unit. Two wires are high voltage AC power and one is a ground wire.

Consult your local building codes and the NEC (National Electrical Code) or CEC (Canadian Electrical Code) for special requirements.

All wires must be sized per NEC or CEC and local codes. Use Electrical Data table MCA (minimum circuit amps) and MOCP (maximum over current protection) to correctly size the wires and the disconnect fuse or breakers respectively.

Per caution note, only copper conductors with a minimum 300 volt rating and 2/64--inch thick insulation must be used.

Communication Wiring:

A separate shielded copper conductor only, with a minimum 300 volt rating and 2/64--inch thick insulation, must be used as the communication wire from the outdoor unit to the indoor unit.

To minimize voltage drop of the control wire, use the following wire size and maximum lengths shown in the chart below:

Wire Size

18 AWG 50 (15) 16 AWG 50 (15) to 100 (30)

Alternate Connection Method for Power and Communication Wiring (May not prevent communication wiring interfer

The main power is supplied to the outdoor unit. The field supplied connecting cable from the outdoor unit to indoor unit consists of four (4) wires and provides the power and communication signals for the indoor unit. Two conductors are for power wiring (L1/L2, or L/N), one is a ground wire, and one is a DC communication wire.

interfer-

Length

ft (m)

ence)

Consult your local building codes and the NEC (National Electrical Code) or CEC (Canadian Electrical Code) for special requirements. All power wires must be sized per NEC or CEC and local codes. Use Electrical Data table MCA (minimum circuit amps) and MOCP (maximum over current protection) to correctly size the wires and the disconnect fuse or breakers respectively.

Per caution note, only copper conductors with a minimum 300 volt rating and 2/64--inch thick insulation must be used.

CAUTION

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

S Wires should be sized based on NEC and local codes.

S Use copper conductors only with a minimum 300 volt

rating and 2/64 inch thick insulation.

CAUTION

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

S Be sure to comply with local codes while running wire

from indoor unit to outdoor unit.

S Every wire must be connected firmly. Loose wiring

may cause terminal to overheat or result in unit malfunction. A fire hazard may also exist. Therefore, be sure all wiring is tightly connected.

S No wire should be allowed to touch refrigerant tubing,

compressor or any moving parts.

S Disconnecting means must be provided and shall be

located within sight and readily accessible from the air conditioner.

S Connecting cable with conduit shall be routed through

hole in the conduit panel.

The main power is supplied to the outdoor unit. the field supplied connecting cable from the outdoor unit to indoor unit consists of four wires and provides the power for the indoor unit as well as the communication signal between the outdoor unit and indoor unit. Two wires are high voltage AC power (L1 and L2), one is a ground wire, and one is a DC communication wire.

CONNECTION DIAGRAMS

CONNECTING CABLE

OUTDOOR TO INDOOR

GND

Indoor

Indoor Unit

Signal

Power Supply

115-1-60

9K and 12k 115v INDOOR UNIT 9K and 12k 115v OUTDOOR UNIT

Notes:

1. Do not use thermostat wire for any connection between indoor and outdoor units.

2. All connections between indoor and outdoor units must be as shown. The connections are sensitive to polarity and will result in a fault code.

High Voltage

Ground

1(L)

Power to

Indoor Unit

115-1-60

115-1-60 FIELD POWER SUPPLY

GND

2(N)

Indoor Signal High Voltage

N Main Power Supply

115-1-60

Indoor Unit

Power Supply

115-1-60

Fig. 5 – Connection Diagrams

208-230-1-60

FIELD POWER SUPPLY

GND

Indoor Signal High Voltage

208-230-1-30

L2 Main Power Supply

A14506

CONNECTING CABLE

OUTDOOR TO INDOOR

GND

Indoor Signal

Ground

High Voltage

Power to

Indoor Unit

208-230-1-30

12K to 22K 208-230V OUTDOOR UNIT12K to 22K 208-230V INDOOR UNIT

DISPLAY BOARD

FAN C

OAR

CODE PART NAME

L_IN FireWire L input terminal

CN11 Zero line N input terminal

CN16 Internal and external communication line interface

CN6 Indoor fan interface

CN4 Fan feedback interface

CN5 Stepper motor interface

P_1 Ground interface

CN8 Room temperature sensor interface

CN9 Pipe temperature sensor interface

CN10A Display interface

CN1 Electronic expansion valve interface

CN14 Compressor top temperature sensor (optional)

CN15 Exhaust temperature sensor

CN16 Outdoor temperature & amp; condenser pipe temperature sensor

CN10 DC fan output port (no)

CN19 AC fan output port

CN33 Electric heating wire line N

CN34 Electric heating wire line L

CN26,CN28 Four way valve control port

CN4 Power L input terminal

CN5 Power N input terminal

CN6 Ground wire

CN7 Communication line

CN8,CN9 Reactor connected line port

CN36,CN37 PFC capacitor connected line port

N-B Power L input terminal

CN17 Test p ane l inte rfac e

U V W Compressor connection port

CN9

N CAPA

CITOR BO

CN5

Optional

CN8

3(2)

P_1

CN 2

L_IN

C N10A

CN11

INDOOR WIRING DIAGRAM

CN16

GND

YELLOW

RED

2020325B3267

S N

HEATER, CRANKCASE

BLACK

CN33

CN34

CN15

CN16

2020375A5475

RED

BLUE

Dashed frame

parts only for heat

CN28

RED

BLACK

pump model.

CN26

RY3

YELLOW

CN7

BLUE

CN5

BROWN

CN4

Y/G

CN6

N-A

BLUE

Y/G

CN10(CN19)

N-B

Power Input

CN9

CN8

L-B(CN36)

L-A(CN37)

Y/G

RED

BLACK

GND

L N S

Fig. 6 – Wiring Diagram 38/40MFC/MFQ009 / 38/40MFC/MFQ012 (115V)

REACTOR

OUTDOOR WIRING DIAGRAM

WIRING DIAGRAMS

DISPLAY BOARD

CODE P ART NAME

L_IN FireWire L input terminal

CN11 Ze ro line N inpu t termin al

CN16 Internal and external communication line interface

CN6 Indoor fan interface

CN4 Fan feedback interface

CN5 Stepper motor interface

P_1 Ground interface

CN8 Room temperature sensor interface

CN9 Pipe temperature sensor interface

CN10A Display interface

CN14 Compressor top temperature sensor (optional)

CN15 Exhaust temperature sensor

CN16 Outdoor temperature & condenser pipe temperature sensor

CN26,CN28 Four way valve control port

CN10 AC fan output port

CN32,CN34 Electric heating wire line N

CN31,CN33 Elec tric h eat ing wire lin e L

CN4 Power L input terminal

CN5 P ower N in put terminal

CN6 Ground wire

CN7 Co mmunic atio n line

N-B Power L input terminal

CN2,CN3 Reactor connected line port

CN17 Test panel interface

U V W Compressor connection port

CN9

CN8

CN5

Optional

CN10A

2020328A7163

3(2)

L_IN

CN11

P_1

CN2

CN16

INDOOR WIRING DIAGRAM

GND

YELLOW

RED

L2 L1

Y/G

Power Input

Dashed frame

parts only for heat

HEATER, CRANKCASET

pump model.

Y/G

GND

L N S

BLUE

BROWN

BLACK

CN34

RED

CN33

CN28

CN26

YELLOW

CN7

CN5

Y/G

CN6

CN4

WHITE

Fig. 7 – Wiring Diagram 38/40MFC/MFQ012 (208--230V)

CN15

CN16

20 20 37 5A5477

WIRING DIAGRAMS (CONT.)

Y/G

N-A

BLUE

CN3

CN2

BLACK

WHITE

BLACK

RY3

RED

BLUE

BLACK

OUTDOOR WIRING DIAGRAM

DISPLAY BOARD

CODE P ART NAME

L_IN FireWire L input terminal

CN11 Zero line N in put termina l

CN16 Internal and external communication line interface

CN6 Indoor fan interface

CN4 Fan feedback interface

CN5 Stepper motor interface

P_1 Ground interface

CN8 Room temperature sensor interface

CN9 Pipe temperature sensor interface

CN10A Dis play in terfa ce

CN101 Compressor top temperature sensor (optional)

CN102 Exhaust temperature sensor

CN103 Outdoor temperature & condenser pipe temperature sensor

CN8,CN9 Four way valve control port

CN10 AC fan output port

CN4 Electric heating wire line N

CN7 Electric heating wire line L

CN13 Power L input terminal

CN12 Power N input terminal

CN14 Gro und wire

CN15 Commu nic atio n lin e

N-B Power L input terminal

CN11,CN22 Reactor connected line port

U V W Compressor connection port

CN9

CN8

CN5

Optional

CN10A

3(2)

2020328A7163

L_IN

CN11

P_1

CN2

CN16

INDOOR WIRING DIAGRAM

GND

YELLOW

RED

L2 L1

Y/G

Power Input

Dashed frame

parts only for heat

HEATER, CRANKCASE

pump model.

Y/G

GND

L N S

BLUE

BROWN

RED

BLACK

YELLOW

Y/G

CN 4

CN 7

DISCHARGE SENSOR

HEAT EXCHANGER SENSOR

(BLACK)

AMBIENT

SENSOR

(WHITE)

CN 102

CN 103

BLUE

2020378A3515

WIRING DIAGRAMS (CONT.)

CN 9

CN 8

RED

BLACK

CN 15

CN 12

CN 13

CN 14

Y/G

5(3)

CN10(CN10A)

CN11

CN22

BLACK

OUTDOOR

FAN

REACTOR

Fig. 8 – Wiring Diagram 38/40MFC018 -- 38/40MFQ017 (208--230V)

OUTDOOR WIRING DIAGRAM

+ 28 hidden pages

Carrier 40MFC, 38MFC, 38MFQ, 40MFQ Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual