McQuay 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

OUTLINE AND DIMENSIONS
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
Indoor Unit (CKA Series)
• (With Wireless Remote Control & With Wired Remote Control)
All dimensions are in mm / (in)
i
A
BC
DE
F
H
M
J
I
G

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

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
iii
Outdoor Unit : SL30C / 40C / 50C & CR
B
A
Q
R
ST
DO
KLL
CN
P
M
N
FE
C
GH
IJ
FOR SL25C/CR
ONLY
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
!Caution Sharp edges and coil surfaces are potential locations which may cause
injury hazards. Avoid from being in contact with these places.
!Avertissement Les bords coupants et les surfaces du refroidisseur tuulaire présentent
un risque de blessure. Mieux vaut éviter le contact avec ces endroits.
!Vorsicht Scharfe Kanten und Wärmetauscherflächen stellen eine Gefahrenquelle dar.
Jeglicher Kontakt mit diesen Stellen ist zu vermeiden.
!Cautela Per preservarsi da eventuali ferite, evitare di toccare gli spigoli afilati e la
superficie dei serpentini.
!Cuidado Los Bordes afilados y la superficie del serpentín pueden producir lesiones.
Evite tocarlos.
!Осторожно Острые края и поверхности змеевиков являются
потенциальными местами нанесения травм. Остерегайтесь
контакта с этими местами.
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
chets
d
es
é
é
lectriques e
t
é
lectroniques (r
é
r
r
é
chet doi
t
ê
tre collect
é
t
t
s
é
par
é
r
r
m
ent par un centre de collect
e
et de traitement s
p
é
cifique. Veuillez vous r
é
r
r
f
é
f
f
é
s locales pour conna
î
a
a
tre ces centres. Ceci
îî
é
enne
.
Questo prodotto
è
soggetto alle disposizioni RAEE (Rifiuti di apparecchiature elettriche ed elettroniche)
.
à
ritirato da un centro incaricato del ritiro e smaltimento. Per conoscere il
à
n
ome del centro pertinente, contattare le autori
t
à
locali. Questa disposizione
à
è
valida solamente i paes
i
d
el
l
’
U.
E
.
é
ctrico y Elect
r
ó
n
ico en materia d
e
ñ
ñ
ado se
r
á
í
fico
í
í
de colecc
i
ó
í
ó
n
Europea
.
Dieses Produkt unterliegt den Bestimmungen zur Entsorgung von elektrischen und elektronische
n
G
er
ä
ä
ä
tes
ä
ä
getrennt vom Hausm
ü
m
ll bei Ihrer
ö
r
tlichen
M
ü
ö
ä
ndiges Abfall-Amt. Dieser
ää
Hinweis gilt nur f
ü
f
f
rL
ä
nder der Europ
ää
ä
ischen Union
.
д
анног
о
п
о
и
.
,
.
Э
т
и
п
р
авил
а
Ев
р
опейског
о
.
NOTICE

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 your air conditioner, please read this instruction manual carefully and keep it for future reference.
INSTALLATION MANUAL
CEILING CASSETTE SPLIT TYPE AIR CONDITIONER
MODEL
COOLING ONLY HEAT PUMP
Part No.:A08019025503 IM-CKA-0501(2)-McQuay
CK20AR / MCK020AR
SL20CR / MLC020CR
4SL20BR / M4LC020BR
5CK20AR / M5CK020AR
5SL20CR / M5LC020CR
CK25AR / MCK025AR
SL25CR / MLC025CR
4SL25BR / M4LC025BR
5CK25AR / M5CK025AR
5SL25CR / M5LC025CR
CK30AR / MCK030AR
SL28CR / MLC028CR
SL30CR / MLC030CR
4SL30CR / M4LC040CR
5CK30AR / M5CK030AR
5SL28CR / M5LC028CR
5SL30CR / M5LC035CR
CK40AR / MCK040AR
SL40CR / MLC040CR
4SL40CR / M4LC040CR
5CK40AR / M5CK040AR
5SL35CR / M5LC035CR
5SL40CR / M5LC050CR
CK50AR / MCK050AR
SL50CR / MLC050CR
4SL50CR / M4LC050CR
5CK50AR / M5CK050AR
5SL50CR / M5LC050AR
CK20A / MCK020A
SL20C / MLC020C
4SL20B / M4LC020B
5CK20A / M5CK020A
5SL20C / M5LC020C
CK25A / MCK025A
SL25C / MLC025C
4SL25B / M4LC025B
5CK25A / M5CK025A
5SL25C / M5LC025C
CK30A / MCK030A
SL28C / MLC028C
SL30C / MLC030C
4SL30C / M4LC040C
5CK30A / M5CK030A
5SL28C / M5LC028C
5SL30C / M5LC035C
CK40A / MCK040A
SL40C / MLC040C
4SL40C / M4LC040C
5CK40A / M5CK040A
5SL35C / M5LC035C
5SL40C / M5LC040C
CK50A / MCK050A
SL50C / MLC050C
4SL50C / M4LC050C
5CK50A / M5CK050A
5SL50C / M5LC050C

1-2
CONTENTS
- Outline And Dimensions page i – 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 R410A Unit page 11
- Special Precautions When Dealing With R407C Unit page 11
- Vacuuming And 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
- Service And 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
IR Receiver
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.
•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.
•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).
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.
•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
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

1-5
English
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.
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.
•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.
•The air swing connector must put inside the control box after connected.
From
Front
Panel
LED Wire
Air Swing Wire
Control Box