McQuay CK20AR User manual

CEILING CASSETTE
SPLIT TYPE AIR CONDITIONER
INSTALLATION MANUAL
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English
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 yourair conditioner, please read this instruction manual carefully and keep it for future reference.
INSTALLATIONMANUAL
CEILING CASSETTE SPLIT TYPE AIR CONDITIONER
MODEL
COOLING ONLY HEAT PUMP
CK20AR /ACK20AR / MCK020AR /YCK20AR
SL20BRK /ALC20BRK / MLC020BRK / YSL20BRK
CK25AR / ACK25AR / MCK025AR / YCK25AR
SL25BRK /ALC25BRK / MLC025BRK / YSL25BRK
CK30AR / ACK30AR / MCK030AR / YCK30AR
SL30CR /ALC30CR / MLC030CR / YSL30CR
CK40AR / ACK40AR / MCK040AR / YCK40AR
SL40CR /ALC40CR / MLC040CR / YSL40CR
CK50AR / ACK50AR / MCK050AR / YCK50AR
SL50CR /ALC50CR / MLC050CR / YSL50CR
CK20A / ACK20A / YCK20A
SL20B / ALC20B / YSL20B
CK25A / ACK25A / MCK025A / YCK25A
SL25B / ALC25B / MLC025B / YSL25B
CK30A / ACK30A / MCK030A / YCK30A
SL30C / ALC30C / MLC30C / YSL30C
CK40A / ACK40A / MCK040A / YCK40A
SL40C / ALC40C / MLC040C / YSL40C
CK50A / ACK50A / MCK050A / YCK50A
SL50C / ALC50C / MLC050C / YSL50C
Part No.:08019004666 IM-CKA-0400-1
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CONTENTS
- Safety Precautions page 02
- Installation Diagram page 03
- Outline And Dimensions page 04
- Installation of Indoor Unit page 5
- Installation Of Outdoor Unit page 09
- Refrigerant Piping Work page 9
- Electrical Wiring Connection page 10
- Vacuuming and Charging page 13
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 or 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.
- Accessory Parts page 13
- Indicator Lights page 14
- Overall Checking page 15
- Standard Operation Conditions page 15
- Auto Random Re-start Function page 15
- Service And Maintenance page 16
- Trouble Shooting page 16
!Caution
Please take note of 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 units panel is closed after service or installation.
Unsecured panels will cause the unit to operate noisily.
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INDOOR UNIT
OUTDOOR UNIT
Drain Hose
Front Panel
Air Filter
(behind the grille)
Air Discharge Louver
IR Receiver
LED Light
Air Intake Grille
Refrigerant Piping
Air Intake
Air Discharge
Wireless Remote Control
Air Discharge Louver
Remote Control
INSTALLATIONDIAGRAM
OUTDOOR UNIT
Drain Hose
Front Panel
Air Filter
(behind the grille)
Air Discharge Louver
Air Intake Grille
Air Discharge Louver
Refrigerant Piping
Air Intake
Air Discharge
Remote Control
Wired Remote Control
Air Intake
Air Intake
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OUTLINEAND DIMENSIONS
MODEL A B C D E F G H I J K
CK 20A/AR
CK 25A/AR
CK 30A/AR 820 820 363 335 28 930 930 642 622 555 555
CK 40A/AR
CK 50A/AR
Indoor Unit : CK20A / 25A / 30A / 40A / 50A& AR
• (With Wireless Remote Control & With Wired Remote Control)
F
H
I
J
G
M
E
C
D
B
A
Outdoor Unit : SL20B / 25B
MODEL A B C D E F G H I J K L
SL20B / 840 492 408 378 330 297 309 626 646 64 148.5 78.5
SL20BRK
SL25B /
SL25BRK
A
B
EF
C
D
G
L
H
I
J
K
All dimensions are in mm.
All dimensions are in mm.
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INSTALLATION OF THE INDOOR UNIT
Outdoor Unit : SL30C / 40C / 50C & CR
All dimensions are in mm.
141.5 746.5 141.5
1030.0
20.0
20.0 448.0
850.0
25.0
50.0
85.0
400.0
320.040.0 40.0
Preliminary Site Survey
• Electrical supply and installation is to conform to local authority's (e.g. National Electrical Board) codes and regulations.
• Voltage supply fluctuation must not exceed +10% of rated voltage. Electricity supply lines must be independent of
welding transformers which can cause high supply fluctuation.
• Ensure that the location is convenient for wiring, piping and drainage.
• The indoor unit must be installed in such that is free from any obstacles in path of cool air discharge and warm air return,
and must allow spreading of air throughout the room (near the center of the room).
• Must be provide clearance for the indoor unit from the wall and obstacles as shown in the figure.
!Caution Sharp edges and coil surfaces are potential locations which may cause
injury hazards. Avoid from being in contact with these places.
Max. 0.3 m
Min. 0.5 m
Min. 0.5 m Min. 0.5 m
Min. 1.0 m
Max. 3.0 m
Floor
Obstacle
Beam
•The installation place must be strong enough to support a load 4 times the indoor unit weight to avoid amplifying noise
and vibration.
•The installation place (hanging ceiling surface) must be assuring levelness and the height in the ceiling is 350mm or more.
•The indoor unit must be away from heat and steam sources (avoid installing it near an entrance).
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Unit Installation
•Measure and mark the position for the hanging rod. Drill
the hole for the angle nut on the ceiling and fix the
hanging rod.
•The installation template is extended according to
temperature and humidity. Check on dimensions in use.
•The dimensions of the installation template are the same
as those of the ceiling opening dimensions.
•Before ceiling laminating work is completed, be sure to
fit the installation template to the indoor unit.
NOTE
Be sure to discuss the ceiling drilling work with the
installers concerned.
620.5 mm (Hanging rod)
890.0 mm (Ceiling board opening)
Unit size 820.0 mm
Unit size 820.0 mm
790.0 mm (Hanging rod)
890.0 mm (Ceiling board opening)
Unit
•Confirm the pitch of the hanging rod is 790mm ×620.5mm sharp.
•Hold the unit and hang it on the hanging rod with the nut and washer.
•Adjust the unit height to 35.0 mm between the indoor unit bottom surface and the ceiling surface.
•Confirm with a level gauge that the unit is installed horizontally and tighten the nut and bolt to prevent unit falling
and vibration.
•Open the ceiling board along the outer edge of the paper installation template.
Unit Hanging
Indoor Unit
Ceiling
Board
35.0 mm
Piping
Direction
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Main Drain Pipe
Feed Water
Flexible Drain Hose
Drain Test
NOTE
This Indoor Unit uses a drain pump for condensed water drainage. Install the unit horizontally to prevent water
leakage or condensation around the air outlet.
•The front panel can only be fitted in one direction, follow the piping direction. (Follow piping arrow sticker on front
panel)
•Be sure to remove the installation template before installing the front panel.
Panel Installation
Open
Screw
•Open the air intake grille by pulling back the catchers and removing it together with filter from panel.
•Install the front frame panel onto the indoor unit by 4 screws and tighten it completely to prevent cool air leakage.
•Connect the LED wire and air swing wire to the indoor unit.
Indoor Unit
Pipe Clamp
GOOD BAD
Drain Piping Work •Drain pipe must be in downward gradient for smooth
drainage.
•Avoid installing the drain pipe in up and down slope to
prevent reversed water flow.
•During the drain pipe connection, be careful not to exert
extra force on the drain connector at indoor unit.
•The outside diameter of the drain connection at the
flexible drain hose is 20mm.
•Be sure to execute heat insulation (polyethylene foam
with thickness more than 8.0mm) on the drain piping to
avoid the condensed water dripping inside the room.
•Connect the main drain pipe to the flexible drain hose.
•Feed water from flexible drain hose to check the piping
for leakage.
•When the test is completed, connect the flexible drain
hose to the drain connector on the indoor unit.
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Indoor Unit
Cool
Air
Ceiling Board
Panel
Air Leak
Good Installation Bad Installation
Air intake grille installation
•Before installing the air intake grille, be sure to fix
the ionizer filter to the air filter.
•Install the air intake grille together with the air filter
to the front panel.
•The grille can be fit in any direction, when selecting
direction, the ceiling design and grille operability
should be considered.
•If the unit comes with ionizer filter (optional item),
make sure to fix the ionizer filter to the air filter before
installing the air intake grille.
•Fix the ionizer filter to the air filter with the black
side on top and white side at bottom.
•Carefully clip on the ionizer filter frame.
Frame
(Optional Item)
Ionizer Filter
(Optional Item)
Filter
(Standard)
From
Front
Panel
LED Wire
Air Swing
Wire
Control Box
NOTE
Install the front frame panel firmly to prevent cool air leakage which will cause condensation and water dripping.
Cool
Air Air Leak
Ceiling Board
Panel
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INSTALLATION OF OUTDOOR UNIT
REFRIGERANT PIPING WORK
Refrigerant piping is important in particular. Refrigeration cycle of the split air conditioner is realized
by the perfect piping work.
Piping length and elevation
If the piping is too long, both the capacity and reliability of unit will drop. As the number of bends increase, resistance to
flow of refrigerant system increases, thus lowering cooling capacity and as a result the compressor may become defective.
Always choose the shortest path and follow the recommendation as tabulated below.
MODEL INDOOR CK20A/AR CK25A/AR CK30A/AR CK40A/AR CK50A/AR
OUTDOOR SL20B/BRK SL25B/BRK SL30C/CR SL40C/CR SL50C/CR
MAX. LENGTH (M) 15 m 15 m 20 m 20 m 20 m
MAX. ELEVATION (M) 8 m 8 m 10 m 10 m 10 m
MAX. NO. OF BENDS 10 10 10 10 10
LIQUID PIPE SIZE 1/4”3/8”3/8”3/8”3/8”
GAS PIPE SIZE 5/8”5/8”5/8”3/4”3/4”
SL SERIES A B C D
MIN. DISTANCE (mm) 300 1000 300 500
MSS SERIES A B C
MIN. DISTANCE (mm) 500 1000 500
Preliminary site survey
•A place protected from rain, direct sunlight and well-ventilated wherever practicable.
•A place capable of bearing the weight of the outdoor unit and isolating noise and vibration.
•A place where there are no obstruction of air flow into or out the unit.
•Do not put any object which may become obstacle for the air flow into or out the outdoor unit.
•The location must not be susceptible to high concentration dust, oil, salt or sulfide gas.
Outdoor unit installation
•Install the outdoor unit firmly and horizontally. Maintain a space clearance from the obstruction as shown in below for
servicing and air ventilation.
AB CD
AB CC
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