chilled water fan coil unit -...

INSTALLATIONMANUAL

INSTALLATIONMANUAL

CHILLED WATER FAN COIL UNIT

CC

CE

CK

IM-FCU-0999L (local cover) 7/14/00, 1:19 PM1

1-1IM-FCU-0999

This manual provides the procedures of installation to ensure a safe and good standard of operation for the airconditioner 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, CXCA25AWACK30AW, MCK030AW, YCK30AW, CXCA30AW



Model

RCM20DW, MCM020DW, YCE20DW




Model

RCC10BW, MCC010BW, YCC10W






CKReference Model

CK20AW

CK25AW

CK30AW

CK40AW

CK50AW

CEReference Model

CE20DW

CE25DW

CE30DW

CE40DW

CCReference Model

CC10BW

CC15BW

CC20BW

CC25BW

CC30BW

CC40BW

Part No.:08019008151

IM-FCU-0999L (Eng) 7/14/00, 1:18 PM1

1-2IM-FCU-0999

CONTENTS

- Safety Precautions page 02- Installation Diagram page 03- Outline And Dimensions (CC series) page 04- Outline And Dimensions (CK series) page 04- Outline And Dimensions (CE series) page 05- Installation Of Indoor Unit page 05- 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 thefurniture.

• 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 workaccording 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.

IMPORTANTDO NOT INSTALL OR USE THE AIR CONDITIONER UNIT IN A LAUNDRY ROOM.

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INST

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LA

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Mod

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OUTLINE AND DIMENSIONS

INDOOR UNIT (CC SERIES)

G

AR

E

N O M

S

DQ P

L

HI

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 U10BW 700 240 25 780 30 50 754 410 350 182 193 140 565 25 90 45 30 673 653 255 19015BW 800 240 25 880 30 50 854 410 350 182 193 140 665 25 90 45 30 773 753 255 19020BW 1000 240 25 1080 30 50 1054 410 350 182 193 140 865 25 90 45 30 973 953 255 19020BW 1200 240 25 1280 30 50 1254 410 350 182 193 140 1065 25 90 45 30 1173 1153 255 19030BW 1500 240 25 1580 30 50 1554 410 350 182 193 140 1345 25 90 45 30 1473 1453 255 19040BW 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.


F

H

IJ G

K

EC

D

B

A

CK MODEL A B C D E F G H I J K20AW25AW30AW 820 820 363 335 28 930 930 642 622 555 55540AW50AW

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OUTLINE AND DIMENSIONS

INDOOR UNIT (CE SERIES)

MODEL 20DW 25DW 30DW 40DW 50DWA 1174 1174 1174 1674 1674B 75 75 75 75 75C 1082 1082 1082 1582 1582D 68 68 68 68 68E 58 58 93 93 93F 156 156 156 156 156G 1214 1214 1214 1714 1714H 57 57 57 57 57I 670 670 670 670 670J 216 216 216 216 216K 319 319 319 319 319L 879 879 879 1379 1379M 517 517 517 517 517


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

A

BC

G

L

F E

M

I

HH

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 asshown in the diagram.

INSTALLATION OF INDOOR UNIT

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1-6IM-FCU-0999

10 m

m

10 m

m

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 amplificationand 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 mMin. 0.5 m Min. 0.5 m

Min

. 1.0

m

Max

. 3.0

m

Obstacle

Bea

m

Floor

Unit Installation

• Measure and mark the position for the hanging rod. Drillthe hole for the angle nut on the ceiling and fix the hangingrod.

• The installation template is extended according totemperature and humidity. Check on dimensions in use.

• The dimensions of the installation template are the sameas those of the ceiling opening dimensions.

• Before ceiling laminating work is not completed, be sureto fit the installation template to the indoor unit.

NOTEBe sure to discuss the ceiling drilling work with the installersconcerned.

Unit Hanging

• Confirm that the pitch of the hanging rod is 790mm x620.5mm sharp.

• Hold the unit and hang it on the hanging rod with the nutand washer.

• Adjust the unit height to 35.0mm between the indoor unitbottom surface and the ceiling surface.

• Confirm with a level gauge that the unit is installedhorizontally and tighten the nut and bolt to prevent unitfrom falling and vibrating.

• Open the ceiling board along the outer edge of the paperinstallation template.

620.

5 m

m (

hang

ing

rod)

890.

0 m

m (

ceili

ng b

oard

ope

ning

)

Uni

t siz

e 82

0.0

mm

Unit size 820.0 mm

790.0 mm (hanging rod)

890.0 mm (ceiling board opening)

Unit

Indoor Unit

CeilingBoard

35.0 mm

Piping Direction

Center distance of axle (see drawing below)

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1-7IM-FCU-0999

Indoor Unit

Pipe Clamp

GOOD BAD

Main Drain Pipe

Feed Water

Flexible Drain Hose

NOTE

THIS INDOOR UNIT USES A DRAIN PUMP FORCONDENSED WATER DRAINAGE. INSTALL THE UNITHORIZONTALLY TO PREVENT WATER LEAKAGE ORCONDENSATION 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 thefront panel).

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

Drain Piping Work

• Drain pipe must be in downward gradient for smoothdrainage.

• Avoid installing the drain pipe in up and down slope toprevent reversed water flow.

• During the drain pipe connection, be careful not to exertextra force on the drain connector at indoor unit.

• The outside diameter of the drain connection at the flexibledrain hose is 20mm.

• Be sure to execute heat insulation (polyethylene foam withthickness more than 8.0mm) on the drain piping to avoidthe 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 andremove it together with the filter from panel.

• Install the front frame panel onto the indoor unit with 4screws and tighten it completely to prevent cool air leakage.

• Connect the LED wire and air swing wire to the indoorunit.

FromFrontPanel

LED Wire

Air SwingWire

Control Box

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1-8IM-FCU-0999

NOTE:INSTALL THE FRONT FRAME PANEL FIRMLY TO PREVENT COOL AIR LEAKAGE WHICH WILL CAUSECONDENSATION AND WATER DRIPPING.

Air Intake Grille Installation

• Before installed the air intake grille, make sure the air filteris clip properly to the air intake grille.

• Install the air intake grille together with the air filter to thefront panel.

• The grille can be fit in any direction, when selectingdirection, the ceiling design and grille operability shouldbe considered.

• If the unit is come with ionizer filter (optional item), makesure to fix the ionizer filter to the air filter before installedthe air intake grille.

• Fix the ionizer filter to the air filter with the black side ontop and white side at bottom.

• Carefully clip on the ionizer filter frame.

Air leakCool 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 DischargeAir Discharge

Air Discharge Air Discharge

10 50 50 50 50 50 10

2070

2010

9

119

90

Ø100

PCD Ø140

115 20 115

Air Discharge Knock Out Hole Air Intake Knock Out Hole

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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 ModelPreliminary Site Survey

* Electrical supply and installation shall conform to the localauthority (e.g. National Electrical Board).

* Voltage supply fluctuation must not exceed ±10% of therated voltage. Electricity supply lines must beindependent of welding transformers which can cause highsupply fluctuation.

* Ensure that the installation location is convenient forwiring and piping.

Standard Mounting

Ensure that the overhead supports are strong enough to holdthe weight of the unit. Position the hanger rods (wallmounting bracket for floor standing), and check for itsalignment with the unit as shown in Figure A. Also, checkthat the hangers are secured and the base of the fan coil unit isleveled in both horizontal directions, taking into account thegradient for drainage flow as recommended in Figure B.

MODEL 20 25 30 40 50A 1214 1214 1214 1714 1714B 666 666 666 666 666C 273 273 273 273 273D 130 130 130 130 130E 1160 1160 1160 1560 1560F 27 27 27 27 27G 77 77 77 77 77H 745 745 745 1235 1235I 25 25 25 25 25J 209 209 209 331 331K 486 486 486 486 486L 108 108 108 108 108M 360 360 360 600 600

FIGURE BPlease ensure that the following steps are taken:

* Check the gradient for drainage flow as recommended inFigure B.

* Provide clearance for easy servicing and optimal air flowas shown in Figure C.

* The indoor unit must be installed such that there is no shortcircuit of the cool discharge air with the warmreturn air.

* Do not install the indoor unit where there is directsunlight shining on the unit. The location should besuitable for piping and drainage installation. The unit mustbe a large distance away from the door.

10.0

mm

10.0

mm

low

er

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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-INARCHITECTURAL FEATURES MUSTNOT PROTRUDE MORE THAN 250.0MM

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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 nationalcode and regulations.

CC10BW~CC40BW

FCUFCUFCUGate Valve

Gate Valve Three Way Valve

Good Controlling Bad Controlling Worst Controlling

Gate Valve

Gate ValveTwo Way ValveGate Valve

Gate ValveChiller

CK20AW~CK50AWCE20DW~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 theoutlet 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

RSTN

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

RSTN

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 theunit. 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 4minutes 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 longperiod of operation.

- The set temperature is too low, increase the temperaturesetting and operate the unit at high fan speed.

- Switch off unit and call dealer.

FAULT

1. The compressor does not start operate after 3 minutesfrom 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

! WarningDisconnect from the main supply before servicing the air conditioner unit.

MAINTENANCE PROCEDURES

1. Remove any dust adhere on the filter by using a vacuum cleaneror wash in lukewarm water (below 40°C) with neutral cleaningdetergent.

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 offwith soft cloth soaked in lukewarm water (below 40°C) withneutral detergent solution.

2. Do not use gasoline, volatile substances or chemical to cleanthe indoor unit.

PERIOD

At least onceevery 2 weeks.More frequently ifnecessary.

At least onceevery 2 weeks.More frequently ifnecessary.

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

IM-FCU-0999L (Eng) 7/14/00, 1:18 PM12

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