McQuay IM-CKA-0501 A Installation 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

Indoor Unit (CKA Series)

• (With Wireless Remote Control & With Wired Remote Control)

All dimensions are in mm / (in)

i

A

B

C

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

ééé

é

lectriques e

t

ййкйй

ééé

é

tre ces centres. Ceci

est uniquement applicable aux pays de l'Union Euro

p

é

enne

.

Questo prodottoè soggetto alle disposizioni RAEE (Rifiuti di apparecchiature elettriche ed elettroniche)

.

à

à

locali. Questa disposizione

è

valida solamente i paes

i

dell

U.E.

é

ctrico y Electrnico en materia d

e

fico

de colecc

i

solamente aplicable a los pases de la Un

i

n

Europea

.

Dieses Produkt unterliegt den Bestimmungen zur Entsorgung von elektrischen und elektronische

n

er

tes

ü

ll bei Ihrer

ü

ndiges Abfall-Amt. Dieser

Hinweis gilt nur f

ischen Union

.

Процес

с

у

тилизациианногопродуктарегулируетсяправиламип

о

у

тилизаци

и

отходо

в

(WEEE Regulations).

т

и

правил

а

Европейског

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

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.

Sharp edges and coil surfaces are potential locations which may cause injury hazards. Avoid
from being in contact with these places.

! Caution

! Avertissement

Les bords coupants et les surfaces du refroidisseur tuulaire présentent un risque
de blessure. Mieux vaut éviter le contact avec ces endroits.

1-1

English

This manual provides the procedures of installation to ensur e 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.

INST ALLA TION MANUAL

CEILING CASSETTE SPLIT TYPE AIR 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

- 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.

! W arning

• 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

INST ALLA TION 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 W ork

• Drain pipe must be in downward gradient for smooth
drainage.

• A void 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.

From
Front
Panel

LED Wire

Air Swing Wire

Control Box

1-6

Indoor Unit

Cool

Air

Ceiling Board

Panel

Air Leak

Good Installation

Bad Installation

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

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)

INSTALLATION OF THE OUTDOOR UNIT

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.

SL series A B C D

Min. distance (mm) 300 1000 300 500

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

C

D