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McQuay CK Series Installation Manual

CE Series\ CC Series

Made by: McQuay
Type: Installation Manual
Category: Air Conditioner
Pages: 13
Size: 0.41 MB

 

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INSTALLATION

MANUAL

INSTALLATION

MANUAL

CHILLED WATER FAN COIL UNIT

CC

CE

CK

IM-FCU-0999L (local cover)

7/14/00, 1:19 PM

1

 


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IM-FCU-0999

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

CHILLED WATER FAN COIL UNIT

    MODEL

Model

ACK20AW, MCK020AW, YCK20AW, CXCA20AW

ACK25AW, MCK025AW, YCK25AW, CXCA25AW
ACK30AW, MCK030AW, YCK30AW, CXCA30AW

ACK40AW, MCK040AW, YCK40AW, CXCA40AW

ACK50AW, MCK050AW, YCK50AW, CXCA50AW

Model

RCM20DW, MCM020DW, YCE20DW

RCM25DW, MCM025DW, YCE25DW

RCM30DW, MCM030DW, YCE30DW

RCM40DW, MCM040DW, YCE40DW

Model

RCC10BW, MCC010BW, YCC10W

RCC15BW, MCC015BW, YCC15W

RCC20BW, MCC020BW, YCC20W

RCC25BW, MCC025BW, YCC25W

RCC30BW, MCC030BW, YCC30W

RCC40BW, MCC040BW, YCC40W

CK
Reference Model

CK20AW

CK25AW

CK30AW

CK40AW

CK50AW

CE
Reference Model

CE20DW

CE25DW

CE30DW

CE40DW

CC
Reference Model

CC10BW

CC15BW

CC20BW

CC25BW

CC30BW

CC40BW

Part No.:08019008151

IM-FCU-0999L (Eng)

7/14/00, 1:18 PM

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IM-FCU-0999

CONTENTS

- Safety Precautions

page 

0

2

- Installation Diagram

page 

0

3

- Outline And Dimensions (CC series)

page 

0

4

- Outline And Dimensions (CK series)

page 

0

4

- Outline And Dimensions (CE series)

page 

0

5

- Installation Of Indoor Unit

page 

0

5

- Electrical Wiring Connection

page 11

- Overall Checking

page 12

- Service And Maintenance

page 12

- Trouble Shooting

page 12

SAFETY PRECAUTIONS

Before installing the air conditioner unit, please read the following safety precautions carefully.

!

 Caution

Please take note on the following important points when installing.

Do not install the unit where leakage of flammable gas may occur.

If water gas leaks and accumulates at the surrounding of 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.

Ensure that the unit panel is covered back after service or installation.

Unsecured panel will cause the unit to operate noisily.

!

 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.

IM-FCU-0999L (Eng)

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IM-FCU-0999

INST

ALLA

TION DIA

GRAM

CE Model

CK Model

Drain Hose

Front Panel

Air Dischar

g

e

Louver

Air Intake

Grille

IR Receiver

LED Light

Air

Dischar

g

e

Louver

Signal

Receiver

Indicator

Lights

Air Filters

(Inside 

Air Intak

e Grille)

Air Filter

(Behind T

he 

Grille)

W

ater Piping

Chiller

W

ater Piping

CC Model

W

ater Piping

Air Intake Grille

Air Disc

har

g

e Gr

ille

Air Dischar

g

e Louv

er

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IM-FCU-0999

OUTLINE AND DIMENSIONS

INDOOR UNIT (CC SERIES)

G

A
R

E

N

O

M

S

D

Q

P

L

H

I

U

F

D

C

CK

B

J

T

CC MODEL

A

B  C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

10BW

700 240 25 780 30

50 754 410 350 182 193 140 565 25

90

45

30 673 653 255 190

15BW

800 240 25 880 30

50 854 410 350 182 193 140 665 25

90

45

30 773 753 255 190

20BW

1000 240 25 1080 30

50 1054 410 350 182 193 140 865 25

90

45

30 973 953 255 190

20BW

1200 240 25 1280 30

50 1254 410 350 182 193 140 1065 25

90

45

30 1173 1153 255 190

30BW

1500 240 25 1580 30

50 1554 410 350 182 193 140 1345 25

90

45

30 1473 1453 255 190

40BW

1800 240 25 1880 30

50 1854 410 350 182 193 140 1665 25

90

45

30 1773 1753 255 190

INDOOR UNIT (CK SERIES)

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

All dimensions are in mm.

All dimensions are in mm.

F

H

I

J

G

K

E

C

D

B

A

 CK MODEL

A

B

 C

D

E

F

G

H

I

J

K

20AW
25AW
30AW

820

820

363

335

28

930

930

642

622

555

555

40AW
50AW

IM-FCU-0999L (Eng)

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IM-FCU-0999

OUTLINE AND DIMENSIONS

INDOOR UNIT (CE SERIES)

MODEL

20DW

25DW

 30DW

40DW

50DW

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

All dimensions are in mm.

!

 Caution

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

A

B

C

G

L

F

E

M

I

H

H

KJ

D

• 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 a way that is free from any obstacles in the path of cool air discharge and warm air

return, and must allow spreading of air throughout the room (near the center of the room).

CC Model

• Use the hanger supplied with the unit.
• Make sure that the wall is sufficiently strong to withstand

the weight.

Provide clearance for servicing ease and optimal air flow as
shown in the diagram.

INSTALLATION OF INDOOR UNIT

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IM-FCU-0999

10 mm

10 mm

A

140 mm

CK Model

• The installation place must be strong enough to support a load 4 times weight of the indoor unit to avoid noise amplification

and vibration.

• The installation place (handing ceiling surface) must be assuring levelness and the height in the ceiling is 350mm or more.
• The indoor unit must be placed away from heat and steam sources (avoid installing it near an entrance).
• Must be provide clearance for the indoor unit from the wall and obstacles as shown in the figure.

Max.

 0.3 m

Min. 0.5 m

Min. 0.5 m

Min. 0.5 m

Min.

 1.0 m

Max.

 3.0 m

Obstacle

Beam

Floor

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 not 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.

Unit Hanging

• Confirm that the pitch of the hanging rod is 790mm x

620.5mm sharp.

• Hold the unit and hang it on the hanging rod with the nut

and washer.

• Adjust the unit height to 35.0mm 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
from falling and vibrating.

• Open the ceiling board along the outer edge of the paper

installation template.

620.5 mm (hanging rod)

890.0 mm (ceiling board opening)

Unit siz

e 820.0 mm

Unit size 820.0 mm

790.0 mm (hanging rod)

890.0 mm (ceiling board opening)

Unit

Indoor Unit

Ceiling
Board

35.0 mm

Piping Direction

Center distance of axle (see drawing below)

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IM-FCU-0999

Indoor Unit

Pipe Clamp

GOOD

BAD

Main Drain Pipe

Feed Water

Flexible Drain Hose

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.

Panel Installation

• The front panel can only be fitted in one direction, follow the piping direction. (Observe the piping arrow sticker on the

front panel).

• Be sure to remove the installation template before installing the front panel.

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.

Drain Test

• 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.

OPEN

SCREWS

• Open the air intake grille by pulling back the catchers and

remove it together with the filter from panel.

• Install the front frame panel onto the indoor unit with 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

IM-FCU-0999L (Eng)

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IM-FCU-0999

NOTE:

INSTALL THE FRONT FRAME PANEL FIRMLY TO PREVENT COOL AIR LEAKAGE WHICH WILL CAUSE
CONDENSATION AND WATER DRIPPING.

Air Intake Grille Installation

• Before installed the air intake grille, make sure the air filter

is clip properly to the air intake grille.

• 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 is come with ionizer filter (optional item), make

sure to fix the ionizer filter to the air filter before installed
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.

Air leak

Cool Air

Indoor Unit

Cool Air

Ceiling Board

Panel

Air leak

Ceiling Board

Panel

GOOD INSTALLATION

BAD INSTALLATION

FRAME

IONIZER

FILTER

Accessory Part

The indoor unit is provided with air discharge and air intake “knock-out” hole for duct connection. However the connec-
tion of the short duct for air discharge is possible on only one side.

The use of short duct for air discharge will improve airflow distribution if there is an obstruction (such as a lighting fixture)
or in a long, narrow room or an L-shaped room. It also use for air conditioning of two rooms simultaneously.

Possible Direction For Air Discharge And Air Intake

Possible Opening Dimension For Duct Connection

Air Intake

Air Discharge

Air Discharge

Air Discharge

Air Discharge

10

50

50

50

50

50

10

20

70

20

109

119

90

Ø100

PCD Ø140

115

20

115

Air Discharge Knock Out Hole

Air Intake Knock Out Hole

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IM-FCU-0999

NOTE:

• Avoid using the short duct on which the air discharge grille can be completely closed, to prevent evaporator freezing.
• In order to prevent condensation forming, be sure that there is sufficient thermal insulation and no leakage of cool air when

installing the short duct.

• Keep the introduction of fresh air intake within 20% of total air flow. Also provide a chamber and use a booster fan.

Sealing Material

• It is possible to seal one of the four air discharge outlet. (sealing two or more air discharge outlet could cause a malfunction)
• Remove the front panel and insert the sealing material into the air discharge outlet on the indoor unit to seal the air outlet.
• The sealing material is the same length as the longer air discharge outlet. If it is desired to seal the shorter air discharge

outlet, cut the sealing material to shorten it.

• Push the sealing material in about 10mm beyond the bottom surface of the indoor unit so that it does not touch the air louver.

Be sure not to push the sealing material in any farther than about 10mm.

FIGURE A

CE Model
Preliminary Site Survey

*

Electrical supply and installation shall conform to the local
authority (e.g. National Electrical Board).

*

Voltage supply fluctuation must not exceed ±10% of the
rated voltage. Electricity supply lines must be
independent of welding transformers which can cause high
supply fluctuation.

*

Ensure that the installation location is convenient for
wiring and piping.

Standard Mounting

Ensure that the overhead supports are strong enough to hold
the weight of the unit. Position the hanger rods (wall
mounting bracket for floor standing), and check for its
alignment with the unit as shown in Figure A. Also, check
that the hangers are secured and the base of the fan coil unit is
leveled in both horizontal directions, taking into account the
gradient for drainage flow as recommended in Figure B.

MODEL

20

25

30

40

50

A

1214

1214

1214

1714

1714

B

666

666

666

666

666

C

273

273

273

273

273

D

130

130

130

130

130

E

1160

1160

1160

1560

1560

F

27

27

27

27

27

G

77

77

77

77

77

H

745

745

745

1235

1235

I

25

25

25

25

25

J

209

209

209

331

331

K

486

486

486

486

486

L

108

108

108

108

108

M

360

360

360

600

600

FIGURE B

Please ensure that the following steps are taken:

*

Check the gradient for drainage flow as recommended in
Figure B.

*

Provide clearance for easy servicing and optimal air flow
as shown in Figure C.

*

The indoor unit must be installed such that there is no short
circuit of the cool discharge air with the warm
return air.

*

Do not install the indoor unit where there is direct
sunlight shining on the unit. The location should be
suitable for piping and drainage installation. The unit must
be a large distance away from the door.

10.0mm

10.0mm lower

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IM-FCU-0999

FIGURE D

SEMI-ENCLOSE MOUNTING

*

In case the unit is to be half-recessed into a false ceiling, please check that the unit is well-aligned.

*

Provide the installation space as shown in figure D.

CEILING TYPE

FIGURE C

FLOOR STANDING TYPE

CEILING BOARD

TOP PANEL OF UNIT

UTENSILS, FURNITURES OR BUILT-IN
ARCHITECTURAL FEATURES MUST
NOT PROTRUDE MORE THAN 250.0MM

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IM-FCU-0999

ELECTRICAL WIRING CONNECTION

NOTE:

This is a proposed wiring connection. It may change subject to the chiller unit and must comply with the local and national
code and regulations.

CC10BW~CC40BW

FCU

FCU

FCU

Gate Valve

Gate Valve

Three Way Valve

Good Controlling

Bad Controlling

Worst Controlling

Gate Valve

Gate Valve

Two Way Valve

Gate Valve

Gate Valve

Chiller

CK20AW~CK50AW
CE20DW~CE40DW

WATER PIPING CONNECTION

The indoor unit is equipped with water outlet and inlet bare connection. There is an air-vent for air purging that is fitted at the
outlet water header.

3 ways solenoid valve is required for cycling off or bypass the chilled water.

Black steel pipe, polyethrene pipe, PVC pipe and copper tube are recommended in field installation.

All types of piping and connection must be insulated by polyurethane (ARMAFLEX type or equivalent) to avoid condensation.

Do not use contaminated or damaged pipe and fitting for installation.

Some main fitting components are needed in the system to enhance the capacity and ease of service, such as gate valve,
balancing valve, 2 ways or 3 ways solenoid valve, filter, strainer etc.

COMP   L    N

FCU 1

3wv

x1, x2, x3

Solenoid Valve for 3 way valve

Relay (220-240V, 10A)

COMP   L    N

FCU 2

COMP   L    N

FCU 3

3wv

x1

Chiller 

3wv

x2

3wv

x3

R
S
T

N

FL  FM  FH  SH  TH    L    N

FL  FM  FH  SH  TH    L    N

FL  FM  FH  SH  TH    L    N

FCU 1

FCU 2

FCU 3

TH

3wv

Chiller 

x1

TH

3wv

TH

3wv

R
S
T

N

x2

x3

3wv

x1, x2, x3

TH

Solenoid Valve for 3 way valve

Relay (220-240V, 10A)

Thermostat

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When any malfunction of the air conditioner unit is noted, immediately switch off the power supply to the
unit. Check the following fault conditions and causes for some simple trouble shooting tips.

TROUBLE SHOOTING

CAUSES / ACTION

- Protection against frequent starting. Wait for 3 to 4

minutes for the compressor to start operating.

- Power failure, or the fuse need to be replaced.
- The power plug is disconnected.
- It is possible that your delay timer has been set incorrectly.
-   If the fault persist after all these verifications, please

contact the air conditioner unit installer.

- The air filter is dirty.
- The doors or windows are open.
- The air suction and discharge are clogged.
- The regulated temperature is not high enough.

- Odors may be caused by cigarettes, smoke particles,

perfume etc. which might have adhered onto the coil.

- This is caused by air humidity after an extended long

period of operation.

- The set temperature is too low, increase the temperature

setting and operate the unit at high fan speed.

- Switch off unit and call dealer.

FAULT

1. The compressor does not start operate after 3 minutes

from starting the air conditioner unit.

2. The air conditioner unit does not operate.

3.   The air flow is too low.

4. Discharge air flow has bad odor.

5. Condensation on the front air grille of the indoor unit.

6. Water flowing out from the air conditioner unit.

If the fault persists, please call your local dealer / serviceman.

SERVICE AND MAINTENANCE

!

 Warning

Disconnect from the main supply before servicing the air conditioner unit.

MAINTENANCE PROCEDURES

1. Remove any dust adhere on the filter by using a vacuum cleaner

or wash in lukewarm water (below 40°C) with neutral cleaning
detergent.

2. Rinse the filter well and dry before placing it back onto the unit.

3. Do not use gasoline, volatile substances or chemical to clean

the filter.

1. Clean any dirt or dust on the grille or panel by wiping it off

with soft cloth soaked in lukewarm water (below 40°C) with
neutral detergent solution.

2. Do not use gasoline, volatile substances or chemical to clean

the indoor unit.

PERIOD

At least once
every 2 weeks.
More frequently if
necessary.

At least once
every 2 weeks.
More frequently if
necessary.

SERVICE PARTS

Indoor air filter

Indoor unit

Ensure the following, in particular:-
1) The unit is mounted solidly and rigid in position.
2) Piping and connections are leak proof after charging.
3) Proper wiring has been done.
Drainage check-pour some water into left side of drain pan (drainage is at the right side of the unit).

NOTE:

• The installation guide above covers only the fan coil unit. For installation of outdoor (chiller mini chiller etc) please refer to

the installation guide for such unit.

• The installation of fan coil unit may vary according to the type of outdoor unit.
• Installation must be done by qualified personnel who are familiar with this type of product.

OVERALL CHECKING

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