McQuay IM-CKA-0501 A Series User manual

CEILING CASSETTE
SPLIT TYPE AIR CONDITIONER
(A Series)
INSTALLATION MANUAL
Group: CEILING CASSETTE
Part Number: A08019025503
Date: MAY 2001
IM-CKA-0501-McQuay
© 2001 McQuay International

OUTLINEAND DIMENSIONS
Indoor Unit (CKA Series)
• (With Wireless Remote Control & WithWired Remote Control)
All dimensions are in mm / (in)
i
A
BC
DE F
H
M
J
I
G
MODEL A B C D E F G H I J K
20A / 20AR
25A / 25AR
30A / 30AR 820 820 363 335 28 930 930 642 622 555 555
40A / 40AR (32,2) (32,2) (14,3) (13,2) (1,1) (36,6) (36,6) (25,2) (24,5) (21,9) (21,9)
50A / 50AR

Outdoor Unit (SL - B Series)
All dimensions are in mm / (in)
Dimension A B C D E F G H J K L M N P Q R
20B / 20BR 840 646 330 297 309 626 41 85 75 177 106 408 378 124 592 78,5
25B / 25BR (33,1) (25,4) (13,0) (11,7) (12,2) (24,6) (1,6) (3,3) (3,0) (7,0) (4,2) (16,1) (14,9) (4,9) (23,3) (3,1)
30B / 30BR
15 (0,6)
39 (1,5)
840 (33,1)
124 (4,9) 840 (33,1)
297 (11,7)
15 (0,6)
39 (1,5)
5 (0,2)
20 (0,8)
20 (0,8) 2,5 (0,1)
5 (0,2) 160 (6,3)
141
(5,6)
(2,6)
65
20 (0,8)
78,5 (3,1)
124 (4,9)592 (23,3)
378 (14,9)
408 (16,1)
330 (13,0) 330 (13,0)
85
(3,3)
41
(1,6)
(3,0)
75
177 (7,0)
106
(4,2)
626 (24,6)
646 (25,4)
309 (12,2)
ii

iii
B
A
Q
R
ST
DO
KLL
CN
P
M
N
FE
C
GH
IJ
FOR SL25C/CR
ONLY
Dimension A B C D E F G H I J K L M N O
20C/CR 855 628 328 508 181 44 93 149 101 113 603 126 164 17 49
(33,7) (24,7) (12,9) (20,0) (7,1) (1,7) (3,7) (5,9) (4,0) (4,4) (23,7) (5,0) (6,4) (0,7) (1,9)
25C/CR 855 730 328 513 182 44 93 149 101 113 603 126 164 17 47
28C/CR (33,7) (28,7) (12,9) (20,2) (7,2) (1,7) (3,7) (5,9) (4,0) (4,4) (23,7) (5,0) (6,4) (0,7) (1,9)
Dimension P Q R S T
20C/CR 32 3 23 73 75
(1,3) (0,1) (0,9) (2,9) (3,0)
25C/CR 32 3 23 73 75
28C/CR (1,3) (0,1) (0,9) (2,9) (3,0)
All dimensions are in mm / (in)
Outdoor Unit : SL20C / 25C / 28C & CR
Outdoor Unit : SL30C / 40C / 50C & CR
141,5 (5,6) 746,5 (29,4)
1030,0 (40,6)
20,0
(0,8)
448,0
(17,6)
850,0 (33,5)
25,0 (1,0)
50,0
(2,0)
85,0
(3,3)
400,0 (15,7)
320,0 (12,6)
40,0
(1,6) 40,0
(1,6)
141,5 (5,6)
20,0
(0,8)
All dimensions are in mm / (in)

iv
This product is subjected to Waste of Electrical and Electronic Equipment Regulations (WEE
E
Regulations). The waste product shall be separately collected by specific collection and treatment centre
.
P
lease refer to local authorithy for these centres. This is only applicable to European Union countries
.
Ce produit est soumis
à
la r
à
é
r
r
é
é
é
lectriques e
t
é
é
é
ê
é
é
é
é
é
é
é
é
é
î
î
tre ces centres. Ceci
îî
est uniquement applicable aux pays de l'Union Euro
p
é
enne
.
Questo prodotto
è
soggetto alle disposizioni RAEE (Rifiuti di apparecchiature elettriche ed elettroniche)
.
à
à
locali. Questa disposizione
à
è
valida solamente i paes
i
d
el
l
’
U.
E
.
é
ctrico y Electr
ó
n
ico en materia d
e
ñ
ñ
á
í
fico
íí
de colecc
i
ó
solamente aplicable a los p
a
í
ses de la
U
n
i
ó
n
Europea
.
Dieses Produkt unterliegt den Bestimmungen zur Entsorgung von elektrischen und elektronische
n
G
er
ä
ä
ä
tes
ä
ä
ü
ü
ll bei Ihrer
ö
ü
ö
ä
ndiges Abfall-Amt. Dieser
ää
Hinweis gilt nur f
ü
f
f
rL
ä
ischen Union
.
П
р
оцес
с
у
тилизаци
и
д
анног
о
прод
у
кт
а
рег
у
лир
у
етс
я
п
р
авилам
и
п
о
у
тилизаци
и
отхо
д
о
в
и
(WEEE Re
g
ulations).
и
,
.
Э
т
и
п
р
авил
а
Ев
р
опейског
о
.
NOTICE
Scharfe Kanten und Wärmetauscherflächen stellen eine Gefahrenquelle dar. Jeglicher
Kontakt mit diesen Stellen ist zu vermeiden.!Vorsicht
!Cautela Per preservarsi da eventuali ferite, evitare di toccare gli spigoli afilati e la superficie dei
serpentini.
!Cuidado LosBordesafiladosylasuperficiedelserpentínpuedenproducirlesiones.Evitetocarlos.
!Осторожно Острые края и поверхности змеевиков являются потенциальными
местами нанесения травм. Остерегайтесь контакта с этими местами.
Sharpedgesandcoilsurfacesarepotentiallocationswhichmaycauseinjuryhazards.Avoid
from being in contact with these places.
!Caution
!Avertissement Lesbordscoupantsetlessurfacesdurefroidisseurtuulaireprésententunrisque
de blessure. Mieux vaut éviter le contact avec ces endroits.

1-1
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 TYPEAIR CONDITIONER
MODEL
COOLING ONLY HEAT PUMP
Part No.:A08019025503 IM-CKA-0501(2)-McQuay
CK20AR / MCK20AR
SL20CR / MLC20CR
4SL20BR / M4LC20BR
5CK20AR / M5CK20AR
5SL20CR / M5LC20CR
CK25AR / MCK25AR
SL25CR / MLC25CR
4SL25BR / M4LC25BR
5CK25AR / M5CK25AR
5SL25CR / M5LC25CR
CK30AR / MCK30AR
SL28CR / MLC28CR
SL30CR / MLC30CR
4SL30CR / M4LC40CR
5CK30AR / M5CK30AR
5SL28CR / M5LC28CR
5SL30CR / M5LC35CR
CK40AR / MCK40AR
SL40CR / MLC40CR
4SL40CR / M4LC40CR
5CK40AR / M5CK40AR
5SL35CR / M5LC35CR
5SL40CR / M5LC50CR
CK50AR / MCK50AR
SL50CR / MLC50CR
4SL50CR / M4LC50CR
5CK50AR / M5CK50AR
5SL50CR / M5LC50AR
CK20A / MCK20A
SL20C / MLC20C
4SL20B / M4LC20B
5CK20A/ M5CK20A
5SL20C / M5LC20C
CK25A / MCK25A
SL25C / MLC25C
4SL25B / M4LC25B
5CK25A / M5CK25A
5SL25C / M5LC25C
CK30A/ MCK30A
SL28C / MLC28C
SL30C / MLC30C
4SL30C / M4LC40C
5CK30A / M5CK30A
5SL28C / M5LC28C
5SL30C / M5LC35C
CK40A/ MCK40A
SL40C / MLC40C
4SL40C / M4LC40C
5CK40A / M5CK40A
5SL35C / M5LC35C
5SL40C / M5LC40C
CK50A / MCK50A
SL50C / MLC50C
4SL50C / M4LC50C
5CK50A / M5CK50A
5SL50C / M5LC50C

1-2
CONTENTS
- OutlineAnd Dimensions pagei–iv
- Safety Precautions page 2
- Installation Diagram page 3
- Installation Of The Indoor Unit page 4
- Installation Of The Outdoor Unit page 6
- Refrigerant Piping Work page 7
- Electrical Wiring Connection page 8
- Special Precautions When Dealing With R410AUnit page 11
- Special Precautions When Dealing With R407C Unit page 11
- VacuumingAnd Charging page 11
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.
- Special Precautions When Charging Unit With
Copeland Scroll Compressors page 12
-Accessory Parts page 13
- Indicator Lights page 13
- Overall Checking page 14
- Standard Operation Conditions page 15
-Auto Random Re-start Function page 15
- ServiceAnd Maintenance page 15
- Troubleshooting page 16
- Phase Sequencer (Optional) 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.

1-3
English
Indoor unit
Outdoor unit
Drain Hose
Front Panel
Air Filter
(behind the grille)
Air Discharge Louver
IRReceiver
LED Light
Air Intake Grille
Refrigerant Piping
Air Intake
Air Discharge
Wireless Remote Control
Air Discharge Louver
Remote Control
INSTALLATION DIAGRAM
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
Indoor unit

1-4
INSTALLATION OF THE INDOOR UNIT
Preliminary Site Survey
•Electrical supply and installation is to conform to local authority's (e.g. National Electrical Board) codes and regulations.
•Voltagesupplyfluctuationmustnotexceed +10%ofratedvoltage.Electricitysupplylinesmustbeindependentofwelding
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.
•Theinstallationplace mustbestrongenough tosupportaload 4 timestheindoor unit weighttoavoidamplifying noiseand
vibration.
•Theinstallation 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).
Unit Installation •Measure and mark the position for the hanging rod. Drill
theholefortheanglenutontheceilingandfixthehanging
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.
•Confirmthepitchofthehangingrodis790mm×620.5mm
sharp.
•Hold the unit and hang it on the hanging rod with the nut
and washer.
•Adjustthe unitheightto 35.0mmbetween theindoorunit
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
Min. 0.5 m Min. 0.5 m Min. 0.5 m
Max. 0.3 m
Max. 3.0 m
Min. 1.0 m
Floor
Obstacle
Beam
35.0 mm
Ceiling
Board
Indoor Unit
890.0 mm (Ceiling board opening)
790.0 mm (Hanging rod)
Unit size 820.0 mm
890.0 mm (Ceiling board opening)
620.5 mm (Hanging rod)
Unit size 820.0mm
Unit
Piping Direction