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14

HIGH WALL

Remedy

1. Wait for Power resume.
2. Replace the fuse or reset the

breaker.

3. Find the cause and fix it.
4. Replace the faulty component.
5. Retighten the connection.
6. Check Thermostat setting.

7. Find the cause then replace

Capacitor.

8. Check and retighten.
9. Find the cause before reset.

1. Check the wiring and the

compressor winding resistance.

2. Find the cause then replace

Capacitor.

1. Remove charge, repair, evacuate

and recharge.

2. Insulate them separately.

3. Wait while unit has enough time to

cool the room.

1. Check Thermostat setting.

2. Check condenser air circulation.
3. Find leak, repair and recharge.
4. Remove charge, evacuate and

recharge.

1. Remove charge, evacuate and

recharge.

2. Determine the cause and replace

compressor.

3. Remove charge, evacuate and

recharge.

4. Replace it.

In heating or cooling operation any
plastic parts may expand or shrink due
to a sudden temperature change in this
event, a clicking sound may occur.

Problem

A. The air conditioner does not run.

B. The outdoor fan runs but the

compressor will not start.

C. There is insufficient heating or

cooling.

D. The compressor run

continuously.

E. The compressor starts but shuts

down quickly.

F. Clicking sound is heard from

the air conditioner.

TROUBLE SHOOTING GUIDE

Probable cause

1. Power Failure.
2. Fuse blown or circuit breaker

open.

3. Voltage is too low.
4. Faulty contactor or relay.
5. Electrical connections loose.
6. Thermostat adjustment too low

(in heating mode) or too high (in
cooling mode)

7. Faulty Capacitor

8. Incorrect wiring, terminal loose
9. Pressure switch tripped

1. Motor winding cut or grounded.

2. Faulty Capacitor.

1. There is a gas leak.

2. Liquid and gas line insulated

together.

3. The room was probably very hot

(cool)  when you  started the
system.

1. Thermostat adjustment too low

(in heating mode) or too high (in
cooling mode)

2. Faulty fan.
3. Refrigerant charge too low, leak.
4. Air or incondensables in

refrigerant circuit.

1. Too much or too little refrigerant.

2. Faulty compressor.

3. Air or incondensables in

refrigerant circuit.

4. Changeover valve damaged or

blocked open (heat pump unit)

In heating or cooling operation any
plastic parts may expand or shrink
due to a sudden temperature change
in this event, a clicking sound may
occur.

03_MHC/BOH 07-25.p65

18/3/02, 16:32

14

Summary of Contents for MHC-MHH

Page 1: ...035T80000 000 MODELS MHC MHH BOC BOH 07 MHC MHH BOC BOH 09 MHC MHH BOC BOH 12 MHC MHH BOC BOH 18 MHC MHH BOC BOH 25 Installation Manual MINISPLIT HIGH WALL AIR CONDITIONER Installation Manual...

Page 2: ...tion Quality POLICY We will continuously strive to satisfy our customers with consistent reliability in product service and support CONTENTS Safety Precautions 4 Part List 5 Preparation Before Install...

Page 3: ...ifold Guage 10 Gas leak detector 11 Vaccum pump 12 Pipe clamp 13 Pipe Cutter 14 Flare Tool Set 15 Electrical Circuit tester EXTENDED PARTS 1 Refrigerant Pipe Models MHC MHH BOC BOH 07 09 12 18 25 Liqu...

Page 4: ...y for possible damage Before undertaking any work on the unit make sure that the power supply has been disconnected CAUTIONS FOR INSTALLATION Do not install in a place where flammable gas may leak It...

Page 5: ...Included with indoor unit 3 Central mounting bracket 4 Not supplied Screws and Anchor Set 5 Remote Control and Battaries Set 6 Installation and Owner s manual 7 Quantity X1 X1 X1 X1 X4 X1 X1 T E M P M...

Page 6: ...cables are needed use the terminal block SELECTION OF THE LOCATION Select a place which provides the space around the units as shown in the diagram below Models MHC MHH BOC BOH 07 09 12 18 25 A 60cm 6...

Page 7: ...re is an obstacle near the air inlet or outlet Installation of the indoor unit at too low a position Installation of outdoor units too close or blowing discharged air into each other Installation of t...

Page 8: ...Gas side piping Liquid side piping Additional drain hose Connecting cable Vinyl tape Apply after carrying out a drainage test To carry out the drainage test remove the air filters and pour water into...

Page 9: ...ing the sharp edge of the mounting plate Wiring This indoor unit is ready for connection to the outdoor unit Cautions Never modify the unit by removing any of the safety guards or by bypassing any of...

Page 10: ...ting plate Make sure that the unit is correctly hung in place by sliding it to the left then to the right Press the bottom left and bottom right hand corners of the unit against the mounting plate unt...

Page 11: ...Notes Connect the pipe correctly Do not apply the excessive torque Use an appropriate bending tool to form curves and avoid over tightening the refrigerant tubes To prevent heat loss the two lines mus...

Page 12: ...re inner insulator of power supply cables and do not deform or smash on the surface of cables Electrical Connections All electrical wiring and connections must comply with local codes and standards Po...

Page 13: ...e of the protection modes are listed below Mode Operation Protection Controlled conditions from remedy Cooling Low outdoor Indoor coil Stop outdoor fan and and Dry temperature freezing up Compressor w...

Page 14: ...the compressor will not start C There is insufficient heating or cooling D The compressor run continuously E The compressor starts but shuts down quickly F Clicking sound is heard from the air condit...

Page 15: ...3 8 3 8 H mm 290 290 290 315 356 Indoor W mm 799 799 799 1 019 1 019 Dimensions D mm 181 181 181 180 180 H mm 492 492 492 590 696 Outdoor W mm 764 764 764 820 850 D mm 230 230 230 280 287 Weights Ind...

Page 16: ...460 3 60 1 1 1 1 1 3 1 1 3 1 3 3 Reciprocating Scroll Recip R 22 Models Power Supply Compressor Refrigerant Type Outdoor Unit V Ph Hz Ph H DB H DA 012 018 024 030 036 048 060 076 220 240 1 50 380 3 5...

Page 17: ...26 5 Rotary Recip R 22 208 230 1 60 1 1 1 1 1 2x0 85 0 85x1 20 2x1 20 2x1 73 2x2 26 2x4 5 4 5x5 7 2x5 7 16 9 26 5 Rotary Recip R 22 Models Power Supply Power Consumption Running Current Compressor Re...

Page 18: ...18 HIGH WALL...

Page 19: ...HIGH WALL 19...

Page 20: ...each system of the unit into a suitable container using a refrigerant reclaim or recovery unit This refrigerant may then be re used if appropriate or returned to the manufacturer for disposal Under N...

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