McQuay RCM20D, RCM20DR, ALC40CR, ALC30C, ALC25BR Installation Manual
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CEILING/FLOOR
EXPOSED CONVERTIBLE
SPLIT TYPE AIR CONDITIONERS
INSTALLATION MANUAL
INSTALLATION MANUAL
This manual provides the procedures of installation to ensure a safe and good standard of operation for the air
conditioner unit.
Special adjustment may be necessary to suit local requirements.
Before using your air conditioner, please read this instruction manual car efully and keep it for futur e refer ence.
CEILING/FLOOR EXPOSED CONVERTIBLE SPLIT TYPE AIR
CONDITIONER
MODEL
COOLING UNIT
English
Reference Model
CE20D
SL20B
CE25D
SL25B
CE30D
SL30C
CE40D
SL40C
CE50D
SL50C
HEAT PUMP UNIT
Reference Model
CE20DR
SL20BR
CE25DR
SL25BR
CE30DR
SL30CR
CE40DR
SL40CR
CE50DR
SL50CR
Model
RCM20D / MCM020D / YCE20D / LXCM20D
ALC20B / MLC020B / YSL20B / LXLC20B
RCM25D / MCM025D / YCE25D / LXCM25D
ALC25B / MLC025B / YSL25B / LXLC25B
RCM30D / MCM030D / YCE30D / LXCM30D
ALC30C / MLC030C / YSL30C / LXLC30C
RCM40D / MCM040D / YCE40D / LXCM40D
ALC40C / MLC040C / YSL40C / LXLC40C
RCM50D / MCM050D / YCE50D / LXCM50D
ALC50C / MLC050C / YSL50C / LXLC50C
Model
RCM20DR / MCM020DR / YCE20DR / LXCM20DR
ALC20BR / MLC020BR / YSL20BR / LXLC20BR
RCM25DR / MCM025DR / YCE25DR / LXCM25DR
ALC25BR / MLC025BR / YSL25BR / LXLC25BR
RCM30DR / MCM030DR / YCE30DR / LXCM30DR
ALC30CR / MLC030CR / YSL30CR / LXLC30CR
RCM40DR / MCM040DR / YCE40DR / LXCM40DR
ALC40CR / MLC040CR / YSL40CR / LXLC40CR
RCM50DR / MCM050DR / YCE50DR / LXCM50DR
ALC50CR / MLC050CR / YSL50CR / LXLC50CR
Part No.: A08019003071
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IM-CED-1099-1
CONTENTS
- Safety Precautions page 2
- Air Conditioner Parts Description page 3
- Outline And Dimensions page 3
- Installation Of Indoor Unit page 5
- Installation Of Outdoor Unit page 7
- Refrigerant Piping page 7
- Electrical Wiring Connection page 9
- Vacuuming And Charging page 12
- Additional Charge page 12
- Air Conditioner Unit Operation page 13
- Standard Operating Conditions page 13
- Auto Random Re-start Function page 13
- Service And Maintenance page 14
- Trouble Shooting page 14
SAFETY PRECAUTIONS
Before installing the air conditioner unit, please read the following safety precautions carefully.
Warning
• Installation and maintenance should be performed by qualified persons who are familiar with local code and
regulation, and experienced with this type of appliance.
• All field wiring must be installed in accordance with the national wiring regulation.
• Ensure that the rated voltage of the unit corresponds to that of the name plate before commencing wiring work
according to the wiring diagram.
• The unit must be GROUNDED to prevent possible hazard due to insulation failure.
• All electrical wiring must not touch the refrigerant piping, compressor and any moving parts of the fan motors.
• Confirm that the unit has been switched OFF before installing or servicing the unit.
IMPORTANT
DO NOT INSTALL OR USE THE AIR CONDITIONER UNIT IN A LAUNDRY ROOM.
Caution
Please take note on the following important points when installing.
• Do not install the unit where leakage of flammable gas may occur.
If gas leaks and accumulates around the unit, it may cause fire ignition.
• Ensure that the drainage piping is connected properly.
If the drainage piping is not connected properly, it may cause water leakage which will dampen the
furniture.
• Do not overcharge the unit.
This unit is factory pre-charged. Overcharge will cause over-current or damage to the compressor.
• Ensure that the unit panel is closed after service or installation.
Unsecured panel will cause unit to operate noisily.
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INDOOR UNIT
AIR CONDITIONER PARTS DESCRIPTION
AIR DISCHARGE LOUVER
SIGNAL RECEIVER
INDICATOR LIGHTS
AIR DISCHARGE GRILLE
AIR INTAKE GRILLE
(INSIDE AIR INTAKE GRILLE)
OUTDOOR UNIT
AIR INTAKE
AIR DISCHARGE NOZZLE
INDOOR UNIT (CE D SERIES)
English
AIR FILTERS
REFRIGERANT
PIPING
AIR INTAKE
OUTLINE AND DIMENSIONS
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MODEL 20 25 30 40 50
A 1174 1174 1174 1674 1674
B 75 75 75 75 75
C 1082 1082 1082 1582 1582
D 68 68 68 68 68
E 58 58 93 93 93
F 156 156 156 156 156
G 1214 1214 1214 1714 1714
H 57 57 57 57 57
I 670 670 670 670 670
J 216 216 216 216 216
K 319 319 319 319 319
L 879 879 879 1379 1379
M 517 517 517 517 517
OUTDOOR UNIT
SL SERIES
All dimensions in mm.
MODEL A B C D E F G H J K L M N P Q R
SL 20B/20BR
SL 25B/25BR 840 646 330 297 309 626 46 90 64 177 106 408 378 124 492 78.5
SL 30B/30BR
SLC SERIES
MODEL A B C D E F G H
SL30C/40C/50C
30CR/40CR/50CR
1030 850 400 448 141.5 746.5 50 85
All dimensions are in mm.
Sharp edges and coil surfaces are potential locations which may cause injury
Caution
hazards. Avoid from being in contact with these places.
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