Carrier 24AHA4, 40MKCB, 124ANS40MKQB, 25HHA4, 224ANS Service Manual

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Page 1

40MKCB / 24AHA4 / 124ANS 40MKQB / 25HHA4 / 224ANS High---Wall Ductles s Split System Sizes 18 to 32

Service Manual

TABLE OF CONTENTS

PAGE

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

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

MODEL / SERIAL NUMBER NOMENCLATURES 2........

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

SPECIFICATIONS 4..................................

DIMENSIONS 5......................................

CLEARANCES 6.....................................

ELECTRICAL DATA 7................................

POWER AND CONNECTING CABLES 8.................

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

REFRIGERATION CYCLE DIAGRAMS 13................

REFRIGERANT LINES 14.............................

SYSTEM EVACUATION AND CHARGING 14.............

SEQUENCE OF OPERATION 15........................

TROUBLESHOOTING 16..............................

APPENDIX 24.......................................

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 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 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.

. When you see this symbol on the unit and in

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 MK family of 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.

Page 2

MODEL / SERIAL NUMBER NOMENCLATURES

INDOOR UNIT

40 MK 318

40= FAN COIL UNIT

MK =MODEL

SYSTEM TYPE C = COOLING ONLY Q=HEATPUMP

MAXIMUM NUMBER OF FAN COIL UNITS THAT CAN BE CONNECTED TO THE OUTDOOR UNIT B=1:1

NOMINAL CAP ACITY 18 = 1--- 1/2 TONS 22 = 1--- 5/6 TONS 24 = 2 TONS 28 = 1--- 1/3 TONS 32 = 2--- 2/3 TONS

BCB

--- ---

VOLTAGE 3 = 208/230 ---1--- 60

NOT USED

INDOOR FAN COIL TYPE

B = H I G H --- W ALL

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 15

00001

Manufacturing Site

Serial Number

Page 3

STANDARD FEATURES AND ACCESSORIES

Table 1—Standard Features

Ease Of Installation

Indoor and Outdoor Compact Size S Outdoor Unit Wall Mounting Kit A Outdoor Unit Stacking Kit A Indoor Mounting Bracket S

Comfort Features

Microprocessor Controls S Wireless Remote Control S Automatic Air Swe ep S Air Direction Control S Auto Restart Function S Cold Blow Protection On Heat Pumps S

Turb o M od e S Silence Mode S Follow Me S

Energy Saving Features

Sleep Mo de S Stop/Start Timer S

46 ° F Heating Mode (Heating Setback) S

Safety And Reliability

3 Minute Time Delay For Compressor S Over Current Protection For Compressor S Crankcase Heater (standard on size 30 Heat Pump) A Indoor Coil Freeze Protection S Indoor Coil High Temperature Protection On Heat Pumps S Condenser High Temperature Protection On Heat Pumps S Accumulator On Heat Pumps S

Ease Of Service And Maintenance

Cleanable Filters S Diagnostics S Liquid Line Pressure Taps S Suction And Discharge Pressure Taps S

Application Flexibility

Low Ambient Controls (-- 20_ F) (--28.9 _C)

3--Phase on size 32 (Cooling Only) S Wind Baff les A Condensate Pumps A Wired Controls A

Legend

SStandard A Accessory

INDOOR UNIT ACCESSORIES

Condensate Pump

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.

Wired Remote Controller

For applications where the use of wireless remote control is not desired, the MK units can be controlled by means of a wired wall--mounted control with an LCD display.

A07892

Fig. 1 – Condensate Pump Accessory

Table 2—Accessories

Part Number Description For Models

KSACN0101A A A Wire d Remote Control Only Sizes 18, 22

53DS--900-- -- --118 Condensate Pump (230v) All Sizes

KAAVC0101A A A

KHAVC0101A A A

KSALA 0801A A A Low Am bi e nt Control (for cooling --20F)

KSALA 0901A A A Low Am bi e nt Control (for cooling --20F) 24 AHA4 /124ANS (460V--3)

KAACH1401AAA C rankcase Heater

KAACH1501AAA C rankcase Heater

KAACH1701AAA C rankcase Heater

KAAWS0101AAA

KHAIR0201AAA

KSAHS1501A A A Hard Start Kit (Capacitor & Relay)

53DS--900-- -- --087 Wind Baffle

53DS--900-- -- --071 Wind Baffle

53DS--900-- -- --075 Stacking Kit 24AHA4/124ANS Sizes 18, 24

53DS--900-- -- --076 Stacking Kit 24AHA4/124ANS Sizes 30, 36

53DS--900-- -- --077 Wall Mount Kit

53DS--900-- -- --078 Wall Mount Kit

KAALS0201LLS Liquid Line Solenoid for Cooling Only

KHALS0401LLS Liquid Line Solenoid for Heat Pump

Controls Kit (Required on High Walls Cooling Only units)

Controls Kit (Required on High Wa lls Heat Pump units)

Winter Start Kit (for low ambient on cooling only syste m s )

Isolati on Relay (Required when using Low Ambient cooling with HP)

40MKC

40MKQ

24AHA4/25HHA4 /124ANS/224A N S (208/230V)

24AHA4/124ANS Sizes 18--36 (208/230V)

24AHA4/124ANS Size 36 (460V--3)

25HHA4/224ANS Size 24 (208/230V)

24AHA4/124 ANS All Sizes

25HHA4/224 ANS All Sizes

24AHA4/25HHA4 /124ANS/224A N S (208/230V--1)

24AHA4/124ANS Sizes 18 & 24; 25HHA4/224ANS Size 24

24AHA4/124ANS Sizes 30 -- 36; 25HHA4/224ANS Size 30

24AHA4/25HHA4 /124ANS/ 224A NS Sizes 18, 24

24AHA4/25HHA4 /124ANS/224A N S Sizes 30, 36

24AHA4/124 ANS All Sizes -Required for Long Li ne Applicat i ons

25HHA4 /224ANS All Sizes -Required for Long Li ne Applicat i ons

Fig. 2 – Wall Mounted Control with LCD Display

Page 4

SPECIFICATIONS

Table 3—Specifications

COOLING ONLY HEAT PUMP

24AHA430A003

124ANS030000

24AHA436A003

124ANS036000

N/A 17~75 17~75

N/A 32~80 32~81

24AHA436A005

124APS036000

System

Performance

Controls

Operating

Range

Piping

Refrigerant

Outdoor

Coil

Indoor

Coil

Compressor

Electrical

Outdoor

Indoor

Size 18 22 28 32 32 32 24 28

Outdoor Model

Indoor Model 40MKCB18B-- --3 40MKCB22B----3 40MKCB28B----3 40MKCB32B----3 40MKCB32B-- --3 40MKCB32B----3 40M K Q B 24B----3 40MKQB28B----3

Cooling Rated Capacity Btu/h 18,000 21,600 28,000 32,000 32,000 32,000 22,800 27,600

SEER 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0

EER 12.2 12.2 12.2 12.2 12.2 12.2 12.0 12.2

Heating Rated Capacity Btu/h N/A 22, 000 27,800

HSPF N/A 8.2 8.2

COP W/W N/A 3.86 3.72 Wireless Remote Controller (°F/° C

Convertibl e ) Wire d Remote Controlle r (° F/° C

Convertibl e ) Cooling Outdoor DB Min --

Max Heating Outdoor DB Mi n --

Max Cooling Indoor DB Min

-- M a x Heating Indoor DB Min

-- M a x Total Piping Length** Ft. 200’ 200’ 200’ 200’ 200’ 200’ 200’ 200’

Drop (OD above ID) Ft. 200’ 200’ 200’ 200’ 200’ 200’ 200’ 200’

Lift (OD below ID ) Ft. 65’ 65’ 65’ 65’ 65’ 65’ 65’ 65’

Outdoor Pipe Connection Size - - Liquid*

Outdoor Pipe Connection Size -- Suctio n

Indoor Pipe Connection Size

-- Liquid Indoor Pipe Connection Size

-- Suction Type R--410A R--410A R--410A R --410A R--410A R--410A R--410A R--410A

Design Pressure PSIG 550 550 550 550 550 550 550 550

Meter i ng Device Type B Accurator Type B Accurator

Charge Lb. 6.4 6.5 8.6 8.9 8.9 8.9 7.7 12.1

Face Area Sq. Ft. 7.3 7.3 12.1 12.1 12.1 12.1 7.3 12.1

No. Rows 2 2 2 2 2 2 2 2

Fins per inc h 20 20 20 20 20 20 20 20

Circuits 3 3 3 3 3 3 3 6

Face Area (sq. ft.) Sq. Ft. 3.9 3.9 4.7 4.7 4.7 4.7 4.7 4.7

No. Rows 2 2 3 3 3 3 3 3

Fins per inc h 21 21 18 18 18 18 18 18

Circuits 6 6 9 9 9 9 9 9

Type Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll

Model

Outdoor Vol t a ge, Phase, Cycle

Indoor Vol t a ge , Phase, Cycle V/Ph/Hz 208/230--1--60 208/230--1--60 208/230--1--60 208/230--1--60 208/230--1--60 208/230--1--60 208/230--1--60 208/230--1--60

Power Supply Indoor and outdoor units have dedicated power supply

MCA (Outdoor) A. 11.8 14.1 18.3 18.3 12.5 7.6 16.5 17.2

MOCP -- Fuse Rating (Outdoor)

MCA (Indoor) A. 1 1 1 1 1 1 1 1

MOCP -- Fuse Rating (Indoor)

Unit Width In. 36.9 36.9 44.5 44.5 44.5 44.5 36.9 44.5

Unit Height In . 31.1 31.1 37.1 37.1 37.1 37.1 31.1 .1

Unit Depth In. 14.6 14.6 17.1 17.1 17.1 17.1 14.6 .1

Net Weight Lbs. 146.0 148. 0 183.0 184.0 184.0 .0 161.0 196.0

Airflow CFM 1285 1285 1900 2615 2615 2615 1285 2615

Unit Width In. 46.7 46.7 57.1 57.1 57.1 .1 57.1 57.1

Unit Height In . 13.4 13.4 13.4 13.4 13.4 .4 13.4 13.4

Unit Depth In. 10.2 10.2 10.4 10.4 10.4 .4 10.4 10.4

Net Weight Lbs. 37. 5 37.5 55.1 55.1 55.1 .1 55.1 55.1

Number of Fan Speeds 4 4 4 4 4 4 4 4

Airfl ow (lowe st to highest) CFM 475/570/695/710 475/570/695/710 525/685/834/847 525/685/834/847 525/685/834/847 525/685/834/847 525/685/834/847 525/685/834/847

Sound Pressure (lowest to highest)

Air throw Data Ft. 20 20 25 25 25 25 25 25

24AHA418A003

124ANS018000

Standar d Standar d Standar d Standar d Standar d Standar d Standa rd Standard

Optional Optional N/A N/A N/A N/A N/A N/A

24AHA424A003

124ANS024000

° F 55~125 (--20°F w / Low--Am bi e nt Kit) 55~125 (--20°F w / Low--Am bi e nt Kit)

° F

64~90 64~90 64~90 64~90 64~90 64~90 64~90 64~90

° F

In. 3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8”

In. 5/8” 3/4” 3/4” 7/8” 7/8” 7/8” 3/4” 3/4”

In. 3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8”

In. 5/8” 3/4” 3/4” 7/8” 7/8” 7/8” 3/4” 3/4”

ZP16K6E--PFV--130ZP20K6E--PFV--130ZP25K5E--PFV--130ZP29K5E--PFV--130ZP29K5E--TF5- -130ZP29K5E--TFD--130 ZP21K5E--PFV--130ZP24K5E--PFV--13

V/Ph/Hz 208/230--1--60 208/230--1--60 208/230--1--60 208/230--1--60 208/230--3--60 460 --3 --60 208/230--1 --60 208/230--1--60

A. 20 25 30 30 20 15 25 30

A. 15 15 15 15 15 15 15 15

dB(A) 44/47/50/ 51 44/47/50/51 46/48/52/53 46/48/52/53 46/48/52/53 46/48/52/53 46/48/52/53 46/48/52/53

* Liquid line needs to be insulated ** Refer to Ductless Split System Long Line Guide f or additional information. Long Line accessories required beyond 80 ft (24.4 m).

Legend

SEER -- ---- Seasonal Energy Efficiency Ratio EER -- -- -- Energy Efficiency Ratio MCA -- -- -- M i n i m u m C i r c u i t A m p s MOCP -- -- -- M a x . O v e r -- -- -- C u r r e n t P r o t e c t i o n

24AHA436A006

124AES036000

25HHA424A003

224ANS024000

Indoor and outdoor units have dedicate d

25HHA430A003

224ANS030000

power supply

Page 5

DIMENSIONS -- INDOOR

High wall Indoor Unit size

(BTU/Hr)

18K and 22K 13.39 (343) 46.69 (1186) 10.16 (258) 17 (7.71) 28K and 32K 13.38 (340) 57.09 (1450) 10.43 (265) 25 (11.34)

24K and 28K 13.38 (340) 57.09 (1450) 10.43 (265) 25 (11.34)

Height (H)

in. (mm)

DIMENSIONS -- OUTDOOR

Fig. 3 – 40MKC**B, 40MKQ**B Unit Dimensions

Table 4—Dimensions Indoor

Width (W)

in. (mm)

Depth ( D)

in. (mm)

A08447

Operating Weight

lb (kg)

UNIT SIZE A B C D E F G H J K L M N P

Cooling

Only

Heat

Pump

18 31.1 36.9 14.6 16.0 23.4 17.2 23.1 28.1 13.0 6.6 11 .3 0.6 2.9 5.8 146.0 24 31.1 36.9 14.6 16.0 23.4 17.2 23.1 28.1 14.0 6.8 11 .6 0.8 2.9 5.8 148.0 30 37.1 44.5 17.1 18.4 30.5 19.6 29.1 34.1 13.7 8.1 15.9 0.8 3.4 6.4 183.0 36 37.1 44.5 17.1 18.4 30.5 19.6 29.1 34.1 13.7 8.1 15.9 0.9 3.4 6.4 184.0 24 31.1 36.9 14.6 16.0 23.4 17.2 23.1 28.1 14.0 6.8 11 .6 0.8 2.9 4.9 161.0 30 37.1 44.5 17.1 18.4 30.5 19.6 29.1 34.1 13.7 8.1 15.9 0.8 3.4 5.5 196.0

NOTE: Dimensions shown in feet--inches. Dimensions in ( ) are millimeters.

Fig. 4 – Outdoor Unit Dimensions

Table 5—Outdoor Dimensions Indoor

OPERATING

WEIGHT lbs

Page 6

CLEARANCES -- INDOOR

4 in.

(101.6 mm)

min.

CLEARANCES -- OUTDOOR

4 in.

(101.6 mm)

min.

80 in

(2032 mm)

min.

8 in.

(203.2 mm)

min.

Fig. 5 – Indoor Unit Clearance

A08357

Air-outlet

Air-inlet

A08436

Fig. 6 – Outdoor Unit Clearance

Table 6—Outdoor Clearances

UNIT Coil Facing Wall -- in. (mm)

A 24 (610)

B 24 (610)

C 20 (508)

D 6 (152)

E 6 (152)

Fan Facing Wall -- in. (mm)

24 (610) 24 (610)

6 (152) 8 (203)

20 (508)

Page 7

ELECTRICAL DATA

Table 7—24AHA4/124ANS Electrical Data

Unit Size --

voltage series

18--30 24--30 62.9 10.9 0.50 14.1 25 30--30 73.0 14.1 0.70 18.3 30 36--30 77.0 14.1 1.20 18.8 30 36--50 208/230/3 253 197 71.0 9.0 1.20 12.5 20 36--60 460/3 506 414 38.0 5.6 0.60 7.6 15

Unit Size --

voltage series

24--30 30--30 64.0 12.8 1.20 17.2 30

Cooling Only Nominal

Indoor Size

018, 022 208/230-- ----1------60 187 253 028, 032 208/230-- ----1------60 187 253

Heat Pump Nominal

Indoor Size

024, 028 208/230 ---- --1------60 187 253

V/PH

208/230/1 253 197

V/PH

208/230/1 253 197

Voltage

OPER VOLTS* COMPRESSOR FA N

MAX MIN LRA RLA FLA

56.3 9.0 0.50 11 .8 20

Table 8—25HHA4/224ANS Electrical Data

OPER VOLTS* COMPRESSOR FA N

MAX MIN LRA RLA FLA

58.3 12.8 0.50 16.5 25

Table 9—40MKCB**B Electrical Data

Voltage

Voltage Range Fan Power

Min Max FLA Min Ckt Amps

0.485

0.51

Table 10—40MKQB**B Electrical Data

Voltage Range Fan Power

Min Max FLA Min Ckt Amps

0.51

MCA

1.0 15

MAX FUSE**

or CKT BRK

AMPS

MAX FUSE**

or CKT BRK

AMPS

Fuse H ACR Bkr

Amps

Fuse H ACR Bkr

Amps

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

LEGEND FLA -- F u l l L o a d A m p s HACR-- Heating, Air Conditioning, Refrigeration LRA-- Locked Rotor Amps NEC-- National Electrical Co de RLA--RatedLoadAmps(compressor)

*Permissible limits of the v o ltage range at which the unit will operate satisfactorily

**Time-- Delay fuse.

Complies with 2007 requirements of ASHRAE Standards 90.1

NOTES:

1. In compliance with NEC requirements for multi--motor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit

shall be fuse or equipped with a breaker.

2. Motor RLA values are established in accordance with UL (Underwriters Laboratories) Standard 465.

Page 8

POWER AND CONNECTING CABLES -- FIELD SUPPLIED

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

Power

The main power is supplied to both, the indoor and the outdoor units. The field supplied connecting cable consists of three (3) wires. 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 communication wire, use the wire size and maximum lengths shown in table 11.

Wiring:

Table 11—Maximum Lengths

Wire Size Length ft. (m)

18AWG 50 ft. (15 m) 16AWG 50 ft. (15 m) to 100 ft. (30 m)

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.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in persona l injury or death. The kit requires high voltage (230V) non--metallic field wire to connect the indoor unit to the kit in the outdoor unit. Some regions may require metal conduit for this wire. Check relevant local building codes before installing. DO NOT USE regular low voltage (24V) thermosta t wire for communication wiring between indoor unit and kit in outdoor unit.

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.

CAUTION

WARNING

CAUTION

Page 9

CONNECTION DIAGRAMS

INDOOR TERMINAL BLOCK

YL2L1C

SEE NOTE #3

NOTES:

1. Symbols are electrical representation only.

2. To be wired in accordance with National Electric N.E.C. and local codes.

3. Use copper conductors only. Use conductors suitable for at least 75ºC (167ºF). Use 18 AWG wires with 2/64” insulation minimum. For wires longer than 50 ft. use 16 AWG wires.

4. If any of the original wire, as supplied must be replaced, use the same or equivalent wire.

5. Check all electrical connections inside kit for tightness.

LEGEND

BLK

YEL

230V

24V

BLK

BRN

CONTROL VOLTAGE

BLK

BRN

ADAPTER KIT

IN OUTDOOR UNIT

FACTORY CONTROL WIRING (24V) FIELD CONTROL WIRING (230V)

FACTORY CONTROL WIRING (230V)

COMPONENT CONNECTION

FIELD SPLICE

OUTDOOR UNIT TERMINALS

VOLTAGE ADAPTER KIT

WIRING DIAGRAM (AC)

Fig. 7 – 40MKCB**B / 24AHA4 or 124ANS Connecting diagram

INDOOR TERMINAL BLOCKS

YL2L1CO

SEE NOTE #3

WHT

230V

24V

RED

BLK

230V

4C16

24V

BLK

OUTDOOR UNIT TERMINALS

YEL

BLU

YEL

BLUBLU

W2 R

230V

4C15

24V

ORN

CONTROL VOLTAGE

ADAPTER KIT

IN OUTDOOR UNIT

VOLTAGE ADAPTER KIT

WIRING DIAGRAM (HP)

NOTES:

1. Symbols are electrical representation only.

2. To be wired in accordance with National Electric N.E.C. and local codes.

3. Use copper conductors only. Use conductors suitable for at least 75ºC (167ºF). Use 18 AWG wires with 2/64” insulation minimum. For wires longer than 50 ft. use 16 AWG wires.

4. If any of the original wire, as supplied must be replaced, use the same or equivalent wire.

5. Check all electrical connections inside kit for tightness.

LEGEND

FACTORY POWER WIRING (230V) FACTORY CONTROL WIRING(24V) FIELD CONTROL WIRING (230V) FACTORY CONTROL WIRING (230V)

COMPONENT CONNECTION

FIELD SPLICE

Fig. 8 – 40MKQB**B / 25HHA4 or 224ANS Connecting diagram

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.

A150098

A150092

Page 10

CAP

BROWN

Legend:

................Model s pecic fea ture

Only for the model which have vertical swing function.

C AP : C apac itor C N 6: Fa n drive interface C N 7: F an feed back in terface C N_C OMP :C ompres sor s igna l C N_L 4:Llive wire L C N_N1: N ull line N C N_N2: N ull line N C N_T 0: T rans former s econda ry interface C N_T IN: T rans former primar y interface C N 3: P ipe tempera ture interface C N 2: R oom tempera ture interface C N 5: D is play boa rd interface C N 10/11: Motor Interfa ce C N_S WM:E mergenc y key interface T1 _room: R oo m temperature sen sor T2 _room: P ipe temperature s enso r

1 2 3 4 5 6 7 8

230V~ Controls signal to voltage adapter kit in outdoor unit

Notes:

1.T o be wire d in acc ordance with Na tional E lectric N.E .C . and lo cal c odes.

2.U se C opper conductors only. Use conductors s uitable for a t lease 7 5*C(1 67*F ).

3. If a ny of the o riginal wires, a s supplied must be r eplace d, use the s ame or e quivalent wire.

Fig. 9 – 40MKC**B wiring diagram

OUTDOOR UNIT SCHEMATIC DIAGRAM

Fig. 10 – 24AHA4/124ANS 208/230 Single Phase Wiring Diagram

Page 11

Fig. 11 – 24AHA4/124ANS 208/230/460 3 Phase Wiring Diagram

Page 12

BROWN

CAP

YELLOW

Legend:

................Model s pecic fea ture

C AP : C apac itor C N 6: Fa n drive interface C N 7: F an feed back in terface C N_C OMP :C ompres sor s igna l

Only for the

C N_VA LVE : F our way val ve s ignal

model which

C N_L 4:Llive wire L C N_N1: N ull line N

have vertical

C N_N2: N ull line N C N_T 0: T rans former s econda ry interface

swing function.

C N_T IN: T rans former primar y interfa ce C N 3: P ipe tempera ture interface C N 2: R oom tempera ture interface C N 5: D is play boa rd interface C N 10/11: Motor Interfa ce C N_S WM:E mergenc y key interface T1 _room: R oo m temperature sen sor T2 _room: P ipe temperature s enso r

8 7

5 6

3 4 2

Notes:

230V~ Controls signal to voltage adapter kit in outdoor unit

1.T o be wire d in acc ordance with Na tional E lectric N.E .C . and lo cal c odes.

2.U se C opper conductors only. Use conductors s uitable for a t lease 7 5*C(1 67*F ).

3. If a ny of the o riginal wires, a s supplied must be r eplace d, use the s ame or e quivalent wire.

Fig. 12 – 40MKQ**B wiring diagram

OUTDOOR UNIT SCHEMATIC DIAGRAM

Fig. 13 – 25HHA4/224ANS Wiring Diagram

Page 13

REFRIGERATION CYCLE DIAGRAMS

FIELD

PIPING

FLARE CONNECTION

COOLING EXPANSION DEVICE

TINU ROODTUOTINU ROODNI

LIQUID

SERVICE VALVE

HEAT EXCHANGER (EVAPORATOR)

FLARE CONNECTION

COOLING EXPANSION DEVICE

SERVICE VALVE W/GAUGE PORT

SUCTION LINE

FIELD

PIPING

Fig. 14 – Cooling Only

FIELD

PIPING

LIQUID HTG

SERVICE VALVE

COMPRESSOR

HEATING EXPANSION DEVICE

HEAT EXCHANGER (CONDENSER)

TINU ROODTUOTINU ROODNI

LIQUID

TWO PHASE

HEAT EXCHANGER (EVAPORATOR)

FLARE CONNECTION

SERVICE VALVE W/ GAUGE PORT

ACCUMULATOR

FIELD

PIPING

Fig. 15 – Heat Pumps

SUCTION

SUCTION DISCHARGE

COMPRESSOR

HEAT EXCHANGER (CONDENSER)

REVERSING

VALV E

COOLING HEATING

Page 14

REFRIGERANT LINES

General refrigerant line sizing:

1 The outdoor units are shipped with a full charge of R410A

refrigerant. All charges, line sizing, and capacities are based on runs of 25 ft (7.6 m). For runs over 25 ft (7.6 m), refer to the Residential Long Line Guide.

2 Minimum refrigerant line length between the indoor and

outdoor units is 10 ft. (3 m).

3 Refrigerant lines should not be buried in the ground. If it is

necessary to bury the lines, not more than 36--in (914 mm) should be buried. Provide a minimum 6--in (152 mm) vertical rise to the service valve s to preve nt re frige r ant migrat ion.

4 Both lines must be insulated. Use a minimum of 1/2--in.

(12.7 mm) thick insulation. Closed-- cell insulation is recommended in all long-- line applications.

5 Special considera tion should be given to isola ting

interconnecting tubing from the building structure. Isolate the tubing so that vibration or noise does not tra nsmit into the structure.

IMPORTANT: Both refrigerant lines must be insulated

separately.

S The following maximum lengths are allowed:

Table 12 – Maximum Refrigerant Line Lengths

Unit

Size

18K 250 (76.2) 65 (19.8) 200 (61) 24K 250 (76.2) 65 (19.8) 200 (61)

30K 250 (76.2) 65 (19.8) 200 (61) 36K 250 (76.2) 65 (19.8) 200 (61)

Note: For lengths greater than 25 ft. (7.6 m), refer to the Residential

*Maximum actual length not to exceed 200 ft. (61 m). Total equivalent

Note: Both lines need to be insulated using at least 1/2 inch close d

Refrigerant Charge

System

Typ e

Cooling

Only

Heat

Pump

The above additional charge is required amount for line lengths up to

Metering Device

The metering device(s) for these systems is a type B accurator. The cooling accurator is installed with the indoor unit, while the heating accurator is installed with the outdoor unit. One Accurator is required for the cooling only system and two are required for the heat pump systems. Refer to Table 15 for the accurator size.

Max Line

Length* ft(m)

Long Line Guide.

length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.

Max Elevation

(ID o ver OD) ft( m)

Max Elevation

(OD over ID) ft (m)

S The following are the piping sizes.

Table13–PipeSizes

Unit Size Mix Phase -- in Vapo r -- i n

18K 3/8 5/8 24K 3/8 3/4

30K 3/8 3/4 36K 3/8 7/8

foam insulation.

Table 14 – Charge Requirements

Nominal Capacity

018 24AHA418A003 124ANS018000 40MKCB18B-- --3 12

022 24AHA424A003 124ANS024000 40MKCB22B-- --3 12

028 24AHA430A003 124ANS030000 40MKCB28B-- --3 12

032 24AHA436A003/5/6 124ANS036000 40MKCB32B----3 8

024 25HHA424A003 224ANS024000 40MKQB24B----3 14

028 25HHA430A003 224ANS030000 40MKQB28B----3 11

25 ft (7.6 m). For line lengths e xceeding 25 ft. (7.6 m), additional charge will be required. Refer to the Residential Long Line Guide.

Table 15 – Accurator Sizes

System Size

018 0.046” -- --

022, 024 0.052” 0.052” 0.049”

028 0.059” 0.057” 0.055”

032 0.065” -- --

Coolin g Only Heat Pumps

40MKC**B 40MKQ**B 25HHA4/224ANS

Pipe Sizes (in)

Outdoor Unit Indoor Unit

Chargeto Sub--cooling Delta from Rating Pla te

Val u e

SYSTEM EVACUATION AND CHARGING

UNIT DAMAGE HAZARD

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

Never use the system compressor as a vacuum pump.

Refrigerant tubes and indoor coil should be evacuated using the recommended deep vacuum method of 500 microns. The alternate triple evacuation method may be used if the procedure outlined below is followed. Always break a vacuum with dry nitrogen.

SYSTEM VACUUM AND CHARGE

Using Vacuum Pump

1 Completely tighten flare nuts A, B, C, D, connect manifold

gage charge hose to a charge port of the low side service

valve (see Fig. 16). 2 Connect charge hose to vacuum pump.

3 Fully open the low side of manifold gage (see Fig. 17).

4 Start the vacuum pump. 5 Evacuate using either deep vacuum or triple evacuation

method. 6 After evacuation is complete, fully close the low side of

manifold gage and stop operation of vacuum pump.

7 The factory char ge contained in the outdoor unit is good for up

to 25 ft. (8 m) of line length. For ref r igera nt line s longer than

25 ft. (8 m), add char ge, up to the maximum allowable length,

as specified in the residential Long Line Applicat ion Guide.

8 Disconnect charge hose from charge connection of the low

side service valve. 9 Fully open service valves B and A.

10 Securely tighten caps of service valves.

Outdoor Unit

Service Valve

500 microns

Low side valve

Charge hose

CAUTION

Refrigerant

Low Side

High Side

Fig. 16 – Service Valve

Manifold Gage

High side valve

Charge hose

Low side valve

Fig. 17 – Manifold

Indoor Uni

A07360

Vacuum pump

A07361

Page 15

Deep Vacuum

Method

The deep vacuum method requires a vacuum pump capable of pulling a vacuum of 500 microns and a vacuum gage capable of accurately measuring this vacuum depth. The deep vacuum method is the most positive way of assuring a system is free of air and liquid water (see Fig. 18).

5000 4500 4000 3500 3000 2500 2000

MICRONS

1500 1000

500

01234567

MINUTES

LEAK IN SYSTEM

VACUUM TIGHT TOO WET

TIGHT DRY SYSTEM

A95424

Fig. 18 – Deep Vacuum Graph

Triple Evacuation

Method

The triple evacuation method should only be used when vacuum pump is only capable of pumping down to 28 in. of mercury vacuum and system does not contain any liquid water. Refer to Fig. 19 and proceed as follows:

1 Pump system down to 28 in. of mercury and allow pump to

continue operating for an additional 15 minutes. 2 Close service valves and shut off vacuum pump.

3 Connect a nitrogen cylinder and regulator to system and

open until system pressure is 2 psig.

4 Close service valve and allow system to stand for 1 hr.

During this time, dry nitrogen will be able to diffuse

throughout the system absorbing moisture.

5 Repeat this procedure as indicated in Fig. 19. System will

then be free of any contaminants and water vapor.

EVACUATE

SEQUENCE OF OPERATION

Interface

A wireless remote control, supplied with the unit, is the interface between the fan coil and the user. The wireless remote control has the following characteristics:

S Capable of displaying _Cand_F with _F being the default

setting. To change the default setting, refer to the Owner’s Manual.

S The remote control setpoint range is from 62_F(17_C) to

86_F(30_C) in increments of 1_F(1_C).

S The wireless remote control has an operating range of 25 ft.

(7.62 m).

S The same remote control can be used to control more than one

unit.

S If the remote control is lost, damaged, or the batteries are

exhausted, the system can be operated by using the manual button (forced Auto) located under the front panel.

Manual Button

AUTO/COOL

A14359

Fig. 20 – Manual Button Location on Unit

BREAK VACUUM WITH DRY NITROGEN

WAIT

EVACUATE

BREAK VACUUM WITH DRY NITROGEN

WAIT

EVACUATE

CHECK FOR TIGHT, DRY SYSTEM

(IF IT HOLDS DEEP VACUUM)

RELEASE CHARGE INTO SYSTEM

Fig. 19 – Triple Evacuation Method

A95425

Page 16

TROUBLESHOOTING

This section provides the required flow charts to troubleshoot problems that may arise.

NOTE: Information required in the diagnoses can be found either on the wiring diagrams or in the appendix.

Required

The following tools are needed when diagnosing the units:

S Digital multimeter S Screw drivers (Phillips and straight head) S Needle-- nose pliers

Recommended

For ease of service, the indoor unit is equipped with diagnostic code display LEDs in the indoor units. This diagnostic display is a combination of flashing LEDs on the display panel or the front of the unit. If possible, always check the diagnostic codes displayed on the indoor unit. Once a failure occurs with the indoor unit in operation, the green LED on the indoor unit flashes at intervals of 0.5 seconds. The fault code is deduced from the number of times the green LED flashes, blocking unit operation. Between one flash cycle and the next one, a pause of 3 to 4 seconds elapses.

The diagnostic codes for the indoor units are listed in the appendix. Problems may occur that are not covered by a diagnostic code, but

are covered by the diagnostic flow charts. These problems are typical air conditioning mechanical or electrical issues that can be corrected using standard air conditioning repair techniques.

Tools:

Steps

1 Refer to the diagnostic hierarchy charts below and

determine the problem at hand.

2 Go to the chart listed in the diagnostic hierarchy and follow

the steps in the chart for the selected problem.

For problems requiring measurements at the control boards please note the following:

For Heat Pump Units

1 Always disconnect the main power. 2 When possible check the outdoor board first.

3 Start by removing the outdoor unit top cover.

4 Reconnect the main power 5 Probe the outdoor board inputs and outputs with a digital

multi-- meter referring to the wiring diagrams.

6 Connect the red probe to hot signal and the black probe to

the ground or negative.

7 Note that some of the DC voltage signals are pulse and

gives continuously variable readings.

ForCoolingonlyandHeat

1 If it is necessary to check the indoor unit board you must

start by disconnecting the main power.

2 Next remove the front cover of the unit and then control

box cover.

3 Carefully remove the indoor board from the control box,

place it face up on a plastic surface (not metal).

4 Reconnect the main power and repeat steps 5, 6, and 7. 5 Disconnect main power before reinstalling board to avoid

shock hazard and board damage.

Only:

Pumps

Page 17

1 --- EEPROM parameter error --- diagnosis and solution(E1)

If the EEPROM chip is welded on main PCB, replace the main PCB directly. Otherwise, check whether the EEPROM chip is plugged into main PCB well.

Yes

Correct the connection.

Replace the main PCB.

Shut off the power supply and

turn it on 5 seconds later. Is it

still displaying the error code?

Error Code E1 Malfunction conditions Indoor PCB main chip does not receive feedback from EEPROM chip.

Possible Causes

Trouble shooting:

• Installation mistake

• Defective PCB

A14480

Page 18

2 --- Zero crossing signal detection error --- diagnosis and solution (E2)

Check if the connections and

power supply is normal?

Correct the connections. Turn on the unit when the power supply is good.

Yes

Indoor main PCB is

defective. Replace indoor

main PCB.

Error Code E2

Malfunction conditions

Possible Causes

Trouble shooting:

When PCB does not receive zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal.

• Connection mistake

• Defective PCB

A14482

Page 19

3 --- Fan speed out of control --- diagnosis and solution (E3)

Shut off the power supply

and turn it on 5 seconds

later. Is it still displaying

the error code?

Shut off the power supply, rotate the fan by hand. Does it rotate properly?

The unit operates normally.

Find out the cause and

have it resolved..

For example, check

whether the fan is

blocked or the bearing

is broken

Check the wires of fan

motor. Are all the

connections good?

Yes

Correct the connections.No

Yes

Check whether the main PCB is

normal through index 2?

Yes

Check whether the fan

motor is normal through

index 1?

Yes

Replace the fan

motor

Replace the

main PCB.

Is the

malfunction

resolved?

If the

malfunction is

still existing,

replace the

main PCB

Error Code E3

Malfunction conditions

Possible Causes

Trouble shooting:

When the indoor fan speed has been too low (300RPM) for certain time, the unit stops and the LED displays the failure.

• Wiring mistake

• Defective fan assembly

• Defective fan motor

• Defective PCB

Index 1: Indoor fan motor

Measure the resistance value of each winding by using the tester. For the definite value of the resistance, refer to Appendix A2 and A3.

Index 2: Indoor fan motor

Power on and set the unit running in fan mode (at high fan speed). After it has been running for 15 seconds, measure the voltage of pin1 and pin2. If the value of the voltage is less than 100V (208~240V power supply) the PCB must have problems and needs to be replaced.

A14483

A14484

Page 20

6 --- Indoor room temperature sensor Open or short circuited --- diagnosis and solution (E5)

Check the connections between temperature sensor and main PCB. Are the connections good?

Correct the connections.No

Yes

Replace indoor or

outdoor main PCB.

Replace the sensor and check if the problem happen again?

Check the resistance value of the sensor. Is it normal?

Error Code E5 Malfunction conditions If the reading voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure.

Possible Causes

Trouble shooting:

• Wiring mistake

• Defective sensor

• Defective PCB

A14485

Page 21

4 --- Evaporator coil temperature sensor Open or short circuited --- diagnosis and solution (E6)

Check the connections between temperature sensor and main PCB. Are the connections good?

Correct the connections.No

Yes

Replace indoor or

outdoor main PCB.

Replace the sensor and check if the problem happen again?

Check the resistance value of the sensor. Is it normal?

Error Code E6 Malfunction conditions If the reading voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure.

Possible Causes

Trouble shooting:

• Wiring mistake

• Defective sensor

• Defective PCB

Page 22

5 --- R e f r i g e r a n t L e a k a g e D e t e c t i o n --- d i a g n o s i s a n d s o l ut i o n ( E C )

Error Code EC

Trouble shooting:

Page 23

ADDITIONAL INFORMATION FOR CRITICAL PARTS:

Temperature sensor troubleshooting

Disconnect the temperature sensor from the PCB, and measure the resistance value with a multimeter.

Temperature sensors:

1. Room temperature (T1) sensor,

2. Indoor coil temperature (T2) sensor,

3. Outdoor coil temperature (T3) sensor,

4. Outdoor ambient temperature (T4) sensor,

5. Compressor discharge temperature (T5) sensor

Indoor Fan Motor

Measure the resistance value of each winding by using the multimeter.

Page 24

APPENDIX

APPENDIX TABLE OF CONTENTS

DESCRIPTION NUMBER

Control Board Input/Output Values A1.......................................................................

Temperature Sensor V alues (T emperature vs. Resistance) for T1, T2, T3, T4 A2........................................

Temperature Sensor V alues (T emperature vs. Resistance) for T5 A3.................................................

Indoor Unit Diagnostic Codes A4...........................................................................

Table 16 – Control Board Input/Output Value

Table 17 – Control Board Input/Output Value -- 40MFC(Q)009---1 / 40MFC(Q)012---1

CONNECTOR CONTROL BOARD INPUT or OUTPUT VALUE

CAP Capacitor Voltage :AC 230V

CN 6 Fan drive interface Voltage :AC 230V CN 7 Fan feedback interface Output DC 12V

CN_COMP Compressor signal Voltage :AC 230V

CN_VALVE Four way valve signal Voltage :AC 230V

CN_L4 Live wire L Voltage :AC 230V CN_N1 Null line N V oltage :AC 230V CN_N2 Null line N V oltage :AC 230V CN_T0 Transformer secondary interface Output AC 12V

CN_TIN Transformer primary interfa ce Input AC 230V

CN 3 Pipe temperature interface Output DC 5V CN 2 Room temperature interface Output DC 5V CN 5 Display board interface Output DC 5V

CN 10/11 Motor Interface Output DC 12V

CN_SWM Emergency key interface DC 5V

Page 25

Table 18 – Temperature Sensor Resistance Value Table for T1, T2, T3, T4

_C _F KOhm _C _F KOhm _C _F KOhm _C _F KOhm

-- 2 0 -- 4 115.266 20 68 12.6431 60 140 2.35774 100 212 0.62973

-- 1 9 -- 2 108.146 21 70 12.0561 61 142 2.27249 101 214 0.61148

-- 1 8 0 101.517 22 72 11.5 62 144 2.19073 102 216 0.59386

-- 1 7 1 96.3423 23 73 10.9731 63 145 2.11241 103 217 0.57683

-- 1 6 3 89.5865 24 75 10.4736 64 147 2.03732 104 219 0.56038

-- 1 5 5 84.219 25 77 10 65 149 1.96532 105 221 0.54448

-- 1 4 7 79.311 26 79 9.55074 66 151 1.89627 106 223 0.52912

-- 1 3 9 74.536 27 81 9.12445 67 153 1.83003 107 225 0.51426

-- 1 2 10 70.1698 28 82 8.71983 68 154 1.76647 108 226 0.49989

-- 1 1 12 66.0898 29 84 8.33566 69 156 1.70547 109 228 0.486

-- 1 0 14 62.2756 30 86 7.97078 70 158 1.64691 110 230 0.47256

-- 9 16 58.7079 31 88 7.62411 71 160 1.59068 111 232 0.45957

-- 8 18 56.3694 32 90 7.29464 72 162 1.53668 112 234 0.44699

-- 7 19 52.2438 33 91 6.98142 73 163 1.48481 113 235 0.43482

-- 6 21 49.3161 34 93 6.68355 74 165 1.43498 114 237 0.42304

-- 5 23 46.5725 35 95 6.40021 75 167 1.38703 115 239 0.41164

-- 4 25 44 36 97 6.13059 76 169 1.34105 116 241 0.4006

-- 3 27 41.5878 37 99 5.87359 77 171 1.29078 117 243 0.38991

-- 2 28 39.8239 38 100 5.62961 78 172 1.25423 118 244 0.37956

-- 1 30 37.1988 39 102 5.39689 79 174 1.2133 119 246 0.36954 0 32 35.2024 40 104 5.17519 80 176 1.17393 120 248 0.35982 1 34 33.3269 41 106 4.96392 81 178 1.13604 121 250 0.35042 2 36 31.5635 42 108 4.76253 82 180 1.09958 122 252 0.3413 3 37 29.9058 43 109 4.5705 83 181 1.06448 123 253 0.33246 4 39 28.3459 44 111 4.38736 84 183 1.03069 124 255 0.3239 5 41 26.8778 45 113 4.21263 85 185 0.99815 125 257 0.31559 6 43 25.4954 46 115 4.04589 86 187 0.96681 126 259 0.30754 7 45 24.1932 47 117 3.88673 87 189 0.93662 127 261 0.29974 8 46 22.5662 48 118 3.73476 88 190 0.90753 128 262 0.29216 9 48 21.8094 49 120 3.58962 89 192 0.8795 129 264 0.28482

10 50 20.7184 50 122 3.45097 90 194 0.85248 130 266 0.2777 11 52 19.6891 51 124 3.31847 91 196 0.82643 131 268 0.27078 12 54 18.7177 52 126 3.19183 92 198 0.80132 132 270 0.26408 13 55 17.8005 53 127 3.07075 93 199 0.77709 133 271 0.25757 14 57 16.9341 54 129 2.95896 94 201 0.75373 134 273 0.25125 15 59 16.1156 55 131 2.84421 95 203 0.73119 135 275 0.24512 16 61 15.3418 56 133 2.73823 96 205 0.70944 136 277 0.23916 17 63 14.6181 57 135 2.63682 97 207 0.68844 137 279 0.23338 18 64 13.918 58 136 2.53973 98 208 0.66818 138 280 0.22776 19 66 13.2631 59 138 2.44677 99 210 0.64862 139 282 0.22231

Page 26

Table 19 – Temperature Sensor Resistance Value Table for T5

_C _F KOhm _C _F KOhm _C _F KOhm _C _F KOhm

-- 2 0 -- 4 542.7 20 68 68.66 60 140 13.59 100 212 3.702

-- 1 9 -- 2 511.9 21 70 65.62 61 142 13.11 101 214 3.595

-- 1 8 0 483 22 72 62.73 62 144 12.65 102 216 3.492

-- 1 7 1 455.9 23 73 59.98 63 145 12.21 103 217 3.392

-- 1 6 3 430.5 24 75 57.37 64 147 11.79 104 219 3.296

-- 1 5 5 406.7 25 77 54.89 65 149 11.38 105 221 3.203

-- 1 4 7 384.3 26 79 52.53 66 151 10.99 106 223 3.113

-- 1 3 9 363.3 27 81 50.28 67 153 10.61 107 225 3.025

-- 1 2 10 343.6 28 82 48.14 68 154 10.25 108 226 2.941

-- 1 1 12 325.1 29 84 46.11 69 156 9.902 109 228 2.86

-- 1 0 14 307.7 30 86 44.17 70 158 9.569 110 230 2.781

-- 9 16 291.3 31 88 42.33 71 160 9.248 111 232 2.704

-- 8 18 275.9 32 90 40.57 72 162 8.94 112 234 2.63

-- 7 19 261.4 33 91 38.89 73 163 8.643 113 235 2.559

-- 6 21 247.8 34 93 37.3 74 165 8.358 114 237 2.489

-- 5 23 234.9 35 95 35.78 75 167 8.084 115 239 2.422

-- 4 25 222.8 36 97 34.32 76 169 7.82 116 241 2.357

-- 3 27 211.4 37 99 32.94 77 171 7.566 117 243 2.294

-- 2 28 200.7 38 100 31.62 78 172 7.321 118 244 2.233

-- 1 30 190.5 39 102 30.36 79 174 7.086 119 246 2.174 0 32 180.9 40 104 29.15 80 176 6.859 120 248 2.117 1 34 171.9 41 106 28 81 178 6.641 121 250 2.061 2 36 163.3 42 108 26.9 82 180 6.43 122 252 2.007 3 37 155.2 43 109 25.86 83 181 6.228 123 253 1.955 4 39 147.6 44 111 24.85 84 183 6.033 124 255 1.905 5 41 140.4 45 113 23.89 85 185 5.844 125 257 1.856 6 43 133.5 46 115 22.89 86 187 5.663 126 259 1.808 7 45 127.1 47 117 22.1 87 189 5.488 127 261 1.762 8 46 121 48 118 21.26 88 190 5.32 128 262 1.717 9 48 115.2 49 120 20.46 89 192 5.157 129 264 1.674

10 50 109.8 50 122 19.69 90 194 5 130 266 1.632 11 52 104.6 51 124 18.96 91 196 4.849 12 54 99.69 52 126 18.26 92 198 4.703 13 55 95.05 53 127 17.58 93 199 4.562 14 57 90.66 54 129 16.94 94 201 4.426 15 59 86.49 55 131 16.32 95 203 4.294 16 61 82.54 56 133 15.73 96 205 4.167 17 63 78.79 57 135 15.16 97 207 4.045 18 64 75.24 58 136 14.62 98 208 3.927 19 66 71.86 59 138 14.09 99 210 3.812

Operation lamp Timer lamp Display LED STATUS

☆1time ☆2times ☆3times ☆5times ☆6times ☆2times

X E1 Indoor Unit EEPROM parameter error X E2 Zero-- crossing signal detection error X E3 Indoor fan speed has been out of control X E5 Open circuit or short circuit of indoor room temperature sensor X E6 Open circuit or short circuit of evaporator coil temperature sensor O EC Refrigerant Leakage Detection

Table 20 – Indoor Unit Diagnostic Guides

O（light） X（off）☆（flash）

Page 27

OPERATION

AUTO MODE

TIMER PERIOD SELECTION

PREHEAT OR DEFROST IN PROGRESS

SELECTED TEMPERATURE SELF-DIAGNOSTIC CODES

Fig. 21 – Unit Display

Table 21 – Signal Receiver Functions

ION indication lamp(optional function)：This lamp illuminates when Clean Air feature is activated.

DEFROST indication lamp(For cooling & heating models only): Lights up when the air conditioner starts defrosting automatically or when

the warm air control feature is activated in heating operation.

OPERATION indication lamp: This lamp illuminates when the air conditioner is in operation.

TIMER indication lamp：Lights up during Timer operation.

Temperature indicator：Displays the temperature settings when the air conditioner is operational. Displays the malfunction code.

Page 28

APPENDIX 1

°C °F °C °F °C °F °C °F °C °F

-5 23 21 69.8 51 123.8 82 179.6 113 235.4

-4 24.8 22 71.6 52 125.6 83 181.4 114 237.2

-3 26.6 23 73.4 53 127.4 84 183.2 115 239

-2 28.4 24 75.2 54 129.2 85 185 116 240.8

-1 30.2 25 77 55 131 86 186.8 117 242.6

0 32 25.5 77.9 56 132.8 87 188.6 118 244.4

0.5 32.9 26 78.8 57 134.6 88 190.4 119 246.2

1 33.8 27 80.6 58 136.4 89 192.2 120 248

1.5 34.7 28 82.4 59 138.2 90 194 121 249.8 2 35.6 29 84.2 60 140 91 195.8 122 251.6

2.5 36.5 30 86 61 141.8 92 197.6 123 253.4 3 37.4 31 87.8 62 143.6 93 199.4 124 255.2

3.5 38.3 32 89.6 63 145.4 94 201.2 125 257 4 39.2 33 91.4 64 147.2 95 203 126 258.8

4.5 40.1 34 93.2 65 149 96 204.8 127 260.6 5 41 35 95 66 150.8 97 206.6 128 262.4 6 42.8 36 96.8 67 152.6 98 208.4 129 264.2 7 44.6 37 98.6 68 154.4 99 210.2 130 266 8 46.4 38 100.4 69 156.2 100 212 131 267.8 9 48.2 39 102.2 70 158 101 213.8 132 269.6

10 50 40 104 71 159.8 102 215.6 133 271.4 11 51.8 41 105.8 72 161.6 103 217.4 134 273.2 12 53.6 42 107.6 73 163.4 104 219.2 135 275 13 55.4 43 109.4 74 165.2 105 221 136 276.8 14 57.2 44 111.2 75 167 106 222.8 137 278.6 15 59 45 113 76 168.8 107 224.6 138 280.4 16 60.8 46 114.8 77 170.6 108 226.4 139 282.2 17 62.6 47 116.6 78 172.4 109 228.2 140 284 18 64.4 48 118.4 79 174.2 110 230 141 285.8 19 66.2 49 120.2 80 176 111 231.8 142 287.6 20 68 50 122 81 177.8 112 233.6 143 289.4

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Edition Date: 08/15

C a t a l o g N o . 4 0 M K C ( Q ) B --- B --- 0 1 S M

Replaces: New