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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 Sweep

S

Air Direction Control

S

Auto Restart Function

S

Cold Blow Protection On Heat Pumps

S

Turbo Mode

S

Silence Mode

S

Follow Me

S

Energy Saving Features

Sleep Mode

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)

A

3--Phase on size 32 (Cooling Only)

S

Wind Baffles

A

Condensate Pumps

A

Wired Controls

A

Legend

S Standard

A Accessory

Table 2—Accessories

Part Number

Description

For Models

KSACN0101AAA

Wired Remote Control

Only Sizes 18, 22

53DS--900------118

Condensate Pump (230v)

All Sizes

KAAVC0101AAA

Controls Kit (Required on High Walls

Cooling Only units)

40MKC

KHAVC0101AAA

Controls Kit (Required on High Walls

Heat Pump units)

40MKQ

KSALA0801AAA

Low Ambient Control (for cooling --20F)

24AHA4/25HHA4

/124ANS/224ANS (208/230V)

KSALA0901AAA

Low Ambient Control (for cooling --20F)

24AHA4 /124ANS (460V--3)

KAACH1401AAA

Crankcase Heater

24AHA4/124ANS Sizes 18--36

(208/230V)

KAACH1501AAA

Crankcase Heater

24AHA4/124ANS Size 36

(460V--3)

KAACH1701AAA

Crankcase Heater

25HHA4/224ANS Size 24

(208/230V)

KAAWS0101AAA

Winter Start Kit (for low ambient on

cooling only systems)

24AHA4/124ANS All Sizes

KHAIR0201AAA

Isolation Relay (Required when using

Low Ambient cooling with HP)

25HHA4/224ANS All Sizes

KSAHS1501AAA

Hard Start Kit (Capacitor & Relay)

24AHA4/25HHA4

/124ANS/224AN S (208/230V--1)

53DS--900------087

Wind Baffle

24AHA4/124ANS Sizes 18 & 24;

25HHA4/224ANS Size 24

53DS--900------071

Wind Baffle

24AHA4/124ANS Sizes 30 -- 36;

25HHA4/224ANS Size 30

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

24AHA4/25HHA4/124ANS/224A

NS Sizes 18, 24

53DS--900------078

Wall Mount Kit

24AHA4/25HHA4

/124ANS/224ANS Sizes 30, 36

KAALS0201LLS

Liquid Line Solenoid for Cooling Only

24AHA4/124ANS All Sizes --

Required for Long Line

Applications

KHALS0401LLS

Liquid Line Solenoid for Heat Pump

25HHA4 /224ANS All Sizes --

Required for Long Line

Applications

INDOOR UNIT ACCESSORIES

Condensate Pump

A07892

Fig. 1 – Condensate Pump Accessory

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.

Fig. 2 – Wall Mounted Control with LCD Display

Summary of Contents for 124ANS40MKQB

Page 1: ...d 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...

Page 2: ...MK MODEL VOLTAGE 3 208 230 1 60 NOMINAL CAPACITY 18 1 1 2 TONS 22 1 5 6 TONS 24 2 TONS 28 1 1 3 TONS 32 2 2 3 TONS INDOOR FAN COIL TYPE B HIGH WALL 01 15 Week of Manufacture Year of Manufacture 00001...

Page 3: ...ntrol for cooling 20F 24AHA4 124ANS 460V 3 KAACH1401AAA Crankcase Heater 24AHA4 124ANS Sizes 18 36 208 230V KAACH1501AAA Crankcase Heater 24AHA4 124ANS Size 36 460V 3 KAACH1701AAA Crankcase Heater 25H...

Page 4: ...20 20 20 20 20 20 Circuits 3 3 3 3 3 3 3 6 Indoor Coil 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 inch 21 21 18 18 18 18 18 18 Circuits 6 6 9 9 9 9 9 9 Com...

Page 5: ...or Dimensions Indoor UNIT SIZE A B C D E F G H J K L M N P OPERATING WEIGHT lbs Cooling Only 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...

Page 6: ...203 2 mm A08357 Fig 5 Indoor Unit Clearance CLEARANCES OUTDOOR A D B Air inlet Air outlet C E A08436 Fig 6 Outdoor Unit Clearance Table 6 Outdoor Clearances UNIT Coil Facing Wall in mm Fan Facing Wall...

Page 7: ...230 1 60 187 253 0 485 1 0 15 028 032 208 230 1 60 187 253 0 51 1 0 15 Table 10 40MKQB B Electrical Data Heat Pump Nominal Indoor Size Voltage Voltage Range Fan Power Min Max FLA Min Ckt Amps Fuse HAC...

Page 8: ...15 m to 100 ft 30 m 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 copp...

Page 9: ...Y LEGEND FACTORY POWER WIRING 230V FACTORY CONTROL WIRING 24V FIELD CONTROL WIRING 230V FACTORY CONTROL WIRING 230V COMPONENT CONNECTION FIELD SPLICE NOTES C R O Y 24V 24V 24V 230V 230V 230V ORN YEL...

Page 10: ...ive interface CN 7 F an feedback interface CN_COMP C ompressorsignal CN_L4 Llive wire L CN_N1 Nullline N CN_N2 Nullline N CN_T0 Transformer secondary interface CN_TIN Transformer primary interface CN...

Page 11: ...11 Fig 11 24AHA4 124ANS 208 230 460 3 Phase Wiring Diagram...

Page 12: ...ve interface CN 7 F an feedback interface CN_COMP C ompressorsignal CN_VALVE F ourway valve signal CN_L4 Llive wire L CN_N1 Nullline N CN_N2 Nullline N CN_T0 Transformer secondary interface CN_TIN Tra...

Page 13: ...ION T I N U R O O D T U O T I N U R O O D N I Fig 14 Cooling Only HEAT EXCHANGER CONDENSER HEAT EXCHANGER EVAPORATOR SERVICE VALVE LIQUID HTG LIQUID TWO PHASE REVERSING VALVE COOLING HEATING COMPRESSO...

Page 14: ...A424A003 224ANS024000 40MKQB24B 3 14 028 25HHA430A003 224ANS030000 40MKQB28B 3 11 The above additional charge is required amount for line lengths up to 25 ft 7 6 m For line lengths exceeding 25 ft 7 6...

Page 15: ...ng 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 C...

Page 16: ...o 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 Thes...

Page 17: ...ble Causes Installation mistake Defective PCB Trouble shooting 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 w...

Page 18: ...ng signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Possible Causes Connection mistake Defective PCB Trouble shooting Check if the connections and power supply is no...

Page 19: ...Check the wires of fan motor Are all the connections good No Yes No Correct the connections No Yes Check whether the main PCB is normal through index 2 Yes Yes Check whether the fan motor is normal t...

Page 20: ...the LED displays the failure Possible Causes Wiring mistake Defective sensor Defective PCB Trouble shooting Check the connections between temperature sensor and main PCB Are the connections good Corr...

Page 21: ...4 94V the LED displays the failure Possible Causes Wiring mistake Defective sensor Defective PCB Trouble shooting Check the connections between temperature sensor and main PCB Are the connections good...

Page 22: ...22 5 Refrigerant Leakage Detection diagnosis and solution EC Error Code EC Trouble shooting...

Page 23: ...ure 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 se...

Page 24: ...UE 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...

Page 25: ...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...

Page 26: ...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...

Page 27: ...ted 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 OP...

Page 28: ...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 2...

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