Cooper Hunter CHV-09SCC4W 4-Way Cassette Type Installation Guide

: June 12, 2024
: Cooper Hunter

Table of Contents

Cooper Hunter CHV-09SCC4W 4-Way Cassette Type
Product Information
Product Usage Instructions
Space around Indoor Unit
Installation
Opening Size
Setting of Wire
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Cooper Hunter CHV-09SCC4W 4-Way Cassette Type

Cooper-Hunter-CHV-09SCC4W-4-Way-Cassette-Type-image

Product Information

This is a 4-Way Cassette Type Central Air Conditioner. The model numbers available are CHV-09SCC4W, CHV-12SCC4W, CHV-15SCC4W, CHV-19SCC4W, CHV-22SCC4W, CHV-24SCC4W, CHV-27SCC4W, CHV-30SCC4W, CHV-38SCC4W, CHV-48SCC4W, and CHV- 54SCC4W.

This air conditioner is designed for standard air conditioning purposes only. It is not meant to be used for other purposes such as drying clothes, refrigerating food, or any other cooling or heating processes.

The installation and service engineering of this air conditioner must comply with local standards, laws, and regulations. It is recommended to have the air conditioner installed by professionals or authorized dealers to avoid water leakage, electric shock, or fire hazards.

The indoor unit of the air conditioner should be installed at a minimum height of 8.2ft (2.5m) and it is not suitable for public access.

For environmental protection, please do not dispose of the product casually. Our company provides recycling services based on relevant regulations and can provide replacement parts if needed.

The heat pump air conditioner is designed to operate within specific temperature ranges for cooling and heating. Please ensure that the air conditioner is operated within these temperature ranges to ensure optimal performance.

Product Usage Instructions

Before using the air conditioner, please read and understand the entire user manual for proper usage and maintenance.
Ensure that the installation and service engineering of the air conditioner comply with local standards, laws, and regulations.
Do not use the air conditioner for purposes other than standard air conditioning, such as drying clothes or refrigerating food.
Avoid installing the air conditioner in environments with spatter of oil, inflammable gases, sulfurated gases, silicon, coastal areas with salt, or places exposed to strong acids or bases.
Do not direct the air outlet towards animals or plants to avoid adverse effects.
Only allow professionals or authorized dealers to install the air conditioner to prevent water leakage, electric shock, or fire hazards.
If you have any questions or concerns, consult the dealer or service center designated by the company.
Dispose of the product responsibly and consider utilizing the recycling services provided by the company.
Operate the heat pump air conditioner within the specified temperature ranges for optimal performance.

Operation, Installation & Maintenance Manual
4-WAY CASSETTE TYPE
CHV-09SCC4W CHV-12SCC4W CHV-15SCC4W CHV-19SCC4W CHV-22SCC4W CHV-24SCC4W CHV- 27SCC4W CHV-30SCC4W CHV-38SCC4W CHV-48SCC4W CHV-54SCC4W

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THANK YOU FOR PURCHASING THIS CENTRAL AIR CONDITIONER. PLEASE READ AND UNDERSTAND THIS MANUAL BEFORE USING THE AIR CONDITIONER. KEEP THIS MANUAL FOR FUTURE REFERENCE.

ORIGINAL INSTRUCTIONS

Dear user: Thank you for choosing and using our product. To better understand and use this product, please be sure to read and observe the following related issues before use.
IMPORTANT NOTICE
Signal words (DANGER, WARNING and CAUTION) are used to indicate hazard seriousness. Definitions of the hazard levels are provided below with respective signal words.

DANGER : Immediate hazard that WILL result in severe personal injury or death.

:$51,1* : Hazards or unsafe practices that COULD result in severe personal injury or death.

&$87,21 : Hazards or unsafe practices which COULD result in minor personal injury or damage to property damage.

45:+

: Useful information for operation and/or maintenance.

This manual should be considered as a permanent part of the air conditioning equipment. Please keep it properly.
Our company pursues a policy of continuous improvement in design and performance of products. The right is therefore reserved to change specifications without notice.
Our company shall not be held responsible for any occasional damage to the air conditioner that arises during its operation in specific environment. This air conditioner is designed for standard air conditioning only. Do not use it for other purposes such as drying cloth, refrigerating foods or for any other cooling or heating processes. Please don’t install the air conditioner in the following environments. Otherwise, fire, machine deformation or failure may arise.

Places with spatter of oil (including machine oil). Places with inflammable gases.

Places with sulfurated gases or silicon (e.g. hot spring, etc.). Coastal areas with much salt or places exposed to strong
acids or bases that may cause corrosion to machine.

Do not have the air outlet directly faced towards animals or plants, since this may bring about an adverse effect thereon.

The installation and service engineering have to comply with local standards, laws and regulations.

As an “appliance inaccessible to the public”, the installation height of indoor unit of the air conditioner shall be at least 8.2ft.(2.5m).

This air conditioner can only be installed by dealers or professionals. The installation by user may lead to water leakage, electric shock or fire.

In case of any question, please consult the dealer or the service center designated by our company.

For environmental protection, please don’t dispose of the product casually. Our company can provide recycling service based on relevant regulations, and provide replacement parts according to

t t d d.

This heat pump air conditioner has been designed for the following temperatures. Be sure to operate the heat pump air conditioner within this range.

Temperature

Cooling

Indoor

Operation Outdoor

Heating

Indoor

Operation Outdoor

Maximum 9 oF DB/73oF WB (32oC DB/23oC WB)
110oF DB (43oC DB) 80oF DB (27oC DB)
9oF WB ( oC WB)

Minimum oF DB/59oF WB (21oC DB/15oC WB)
23oF DB (-5oC DB) 59oF DB ( 15oC DB) -4oF WB (-20oC WB)

This temperature may vary with outdoor unit.

DB: Dry Bulb, WB: Wet Bulb

Refer to the instruction manual for complete machine (outdoor unit) for information about the product standards to which the indoor unit is subject.

DANGER
Please don’t perform installation works such as refrigerant piping connection, drain pipe connection, and wiring connection. Violations may result in system leakage, electrical failure or fire. In the case of fire, please turn off the power immediately; please don’t touch electrical parts with the hands, or electric shock may arise.

Do not pour water into the indoor or outdoor unit. This machine is an electric product that may develop serious electric failure when exposed to water.
Do not open the service cover of indoor or outdoor units without turning OFF the main power supply; otherwise, this may bring about serious safety accident.
Do not touch or adjust safety devices inside the indoor or outdoor units. If they are touched or readjusted, serious accident may arise.
Refrigerant R410A is non-flammable, non-toxic, and odorless, and may produce toxic gases when exposed to open flame. Since this refrigerant gas is heavier than air, it may result in lack of oxygen, thereby leading to breathing difficulties when the area near the ground is filled with this gas. If that’s the case, please turn off the main switch immediately, cut off the power supply, and open the doors and windows for ventilation. Put out any open flame, and contact your service dealer. Performing leak detection and gas tightness test with oxygen, acetylene or other flammable and toxic gases may cause explosion, so nitrogen is recommended for this test.
The standards for safe refrigerant leakage in construction and system operation are determined based on local regulations or standards.
Use ELB with medium or higher sensing speed (ELB with an operating time of 0.1 seconds or less), or electric shock or fire may arise.
For installation, the refrigerant piping must be firmly connected before the operation of compressor. For repair, the refrigerant piping must be moved, handled and removed after the stop of compressor.
Please don’t short-circuit the protective device (e.g., the pressure switch, etc.) during operation, since this may cause fire or explosion.
:$51,1*
Do not use any sprays such as insecticide, lacquer, hair spray or other flammable gases within approximately one 3.3ft.(1m) from the system.
If the earth leakage breaker (ELB) is frequently activated, please stop the system and contact your local dealer or customer services.
Make sure the ground wire is securely connected. The improper grounding of machine may lead to electrical failure. Please don’t connect the ground wire to gas pipes, tap water pipes, lightning rods or phone ground wires.
Make sure there are no flammable materials around during brazing operation. Please wear leather gloves to prevent frostbite when filling refrigerant.
Prevent rats or other small animals damaging the wiring and electrical components. Bitten unprotected parts may cause a fire.
Firmly fix the connection wires. The external force of terminal may result in looseness of terminal that may cause a fire.
Make sure the air conditioner is installed with enough strength of fixation; otherwise, the air conditioner may fall or topple over, which may bring about machine damage or personal injury.
Please follow the installation instructions and related regulations and standards for electrical construction; otherwise, electrical failure or fire may occur due to inadequate capacity or inconsistent specifications.
Never fail to use specified wiring and select correct wiring, since failure to do so may cause electrical failure or fire.
Please make sure the outdoor unit is not covered with snow or ice before use. The A-weighted emission sound pressure level at workstations, where this exceeds 70 dB(A). This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

,03257$17127,&( Correct Disposal of this product
This marking indicates that this product should not be disposed with other household wastes. To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsibly to promote the sustainable reuse of material resources. To return your used device, please use the return and collection systems or contact the retailer where the product was purchased. They can take this product for environmental safe recycling.
CHECKING PRODUCT RECEIVED
Upon receipt of this product, check it for any shipping damage. Claims for damage, either apparent or concealed, should be filed immediately with the shipping company.
Check the model number, electrical parameters (power supply, voltage, and frequency) and accessories to determine if they are correct. Please contact your local dealer in case of problem. Our company shall not be held responsible for any consequence arising from the modification to equipment without our written consent.

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Safety Precautions
Tools & Instruments for Installation
Transportation & Handling
Transportation
Handling of Indoor Unit
Installation of Indoor Unit
Factory-Supplied Accessories
Initial Check
Installation
Refrigerant Piping Work
Piping Materials
Piping Connection
Drain Pipe
Electrical Wirin
General Check
Wiring
Field Wire Size for Power Source Line
Test Run
Protection Control Device
Field Operatio
Setting of DIP Switch
Setting of Fan Speed

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:$51,1*
Do not perform installation work, refrigerant piping work, drain piping and electrical wiring connection without referring to the installation manual.
Check that the ground wire is securely connected. Connect a fuse of specified capacity.

&$87,21
Do not install the indoor unit, outdoor unit, remote control switch and cable within approximately 9.8ft.(3m) from strong electromagnetic wave radiators such as medical equipment.

7RROV ,QVWUXPHQWVIRU,QVWDOODWLRQ

No.

Tool

1

Handsaw

2

Screwdriver

3

Vacuum Pump

4

Refrigerant Gas Hose

5

Megohmmeter

6

Copper Pipe Bender

7

Water Pump

8

Pipe Cutter

9

Brazing Kit

10

Hexagon Wrench

No.

Tool

11

Spanner

12

Charging Cylinder

13

Multi-purpose Measuring Instrument

14

Cutter for Wires

15

Gas Leak Detector

16

Leveller

17

Clamper for Solderless Terminals

18

Hoist (for Indoor Unit)

19

Ammeter

20

Voltage Meter

Note: When in immediate contact with refrigerant, please use the installation tools and instruments dedicated to the new refrigerant.

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Since the pressure of new refrigerant R410A is 1.4 times that of traditional refrigerant, its performance is susceptible to impurities like moisture, scale and grease, etc. It’s essential to remove the moisture, dust, other refrigerants or refrigerant oils from the refrigeration system. Hence, the failure to use specified materials and tools may result in explosion, personal injury, refrigerant leakage, electrical failure or fire.

7UDQVSRUWDWLRQ +DQGOLQJ 3.1 Transportation
Transport the product as close to the installation location as practical before unpacking.
&$87,21
Do not put any material on the product. 3.2 Instructions for Handling
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Do not put any foreign material into the indoor unit and check to ensure that none exists in the indoor unit before the installation and test run. Otherwise, a fire or failure, etc. may occur.
&$87,21
Be careful not to cause damage to insulation materials of the unit surface when it’s lifted.

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Install the indoor unit as per national standard
‘$1(5
Do not install the indoor unit in a flammable environment since this may cause fire or an explosion.
:$51,1
Do not install the indoor unit outdoors. If installed outdoors, an electric hazard or electric leakage will occur. 4.1 Factory-Supplied Accessories Check to ensure that the accessories are packed with indoor unit. Please refer to the packing list on the end page of this manual for standard accessories.
&$87,21
If any of these accessories are not packed with the unit, please contact your dealer.

1

4.2 Initial Check
Install the indoor unit in a space for easy operation and maintenance as shown in Fig. 4.1.
Provide a service access door near the unit piping connection area on the ceiling.
Check to ensure that the ceiling is strong enough to hang the indoor unit.
Check if the ceiling surface is flat for the air panel installation.

4.9ft. (1.5m)

9.8ft.(3m)
29 32 . ( mm)

4.9ft. (1.5m)

Piping Connection
Service Access Door 23 32 .(450mm)

Piping Connection
Service Access Door 23 32 .( mm)

Distance from Wall Side

9

.( mm)

3

.( mm)

Piping Connection 3

.( mm) 39 3 8 .(

9 mm)

Service Space

.( mm)

Space around Indoor Unit

The indoor unit must be installed at an appropriate location so that the indoor temperature can be evenly distributed.
There should be no obstruction of air flow at the vent.
Do not install the indoor unit in a machinery shop or kitchen where vapor from oil or its mist flows to the indoor unit. Once the oil deposits on the heat exchanger, it may impair the performance of indoor unit and cause damage to plastic parts therein.
Pay attention to the following points when the indoor unit is installed in a hospital or other facilities where there are electronic waves from medical equipment, etc. (A) Do not install the indoor unit where the electromagnetic wave is directly radiated to the electrical box, remote control cable or remote control. (B) Install the indoor unit and components as far as practical or at least 9.8ft.(3m) from the electromagnetic wave radiator. (C) Install the remote control switch in an iron box. Arrange the remote control cable in an iron tube. Ground the iron box and iron tube. (D) Install a noise filter when the power supply emits harmful noises.
To avoid any corrosive action to the heat exchangers, do not install the indoor unit in an acid or alkaline environment.

Select the installation location as follows:

Installation

(A) Minimum Space

4.3.1 Opening of False Ceiling and Suspension Bolts

(B) Down Slope Pitch of Drain Pipe: 1/25~1/100

(1) Select appropriate location and direction for installation of indoor unit, and determine its location. Pay careful attention to the space for the piping, wiring and maintenance.

2

2 32 .(10~20 mm) ( )

92

.(260 mm)

2

.(310 mm)

Indoor Unit Height in Ceiling

2 32(2 )

33

3 3 (8 9 )

(m

f

)

33 (8 )

(m

fd

t)

29 9 ( )

(Dimension of Suspension Bolts)

2 32(2 )

.(mm) Suspension Bolts

2 32(2 )

Drain Pipe

1/25~1/100 Down Slope

33 (840 (Dimension of Indoor Unit)
860-910 (Dimension of Opening )

29 9 (760) (Dimension of Suspension Bolts)

Fig. 4.2 Installation Location of Indoor Unit
The figure on the right shows the sensing area of motion detector when the motion detector in panel is in service.

2 32(2 )

8.2ft.(2.5m)

. ft.( m)

a

Approx. 9. ft.(6m) Approx. 28.9ft.( m)

m mt

4 location of Suspension Bolts 0

Motion detector

Fig. 4.3 Opening of False Ceiling and Suspension Bolts
(3) Ensure that the ceiling is horizontally level; otherwise, proper drainage flow would be impossible.
(4) Strengthen the opening parts of the ceiling. (5) Mount suspension bolts, as shown in the figure.

2.6ft.(0.8m) above the ground

2

For Concrete Slab

For Steel Beam

5-29/32~6-19/64in.(150~160mm) Screw in 220~331lbs(100~150kg)
Concrete

Fixing Point

Suspension Bolt

(W3/8 or M10)

, Beam

Suspension Bolt

(W3/8 or M10)

For Wooden Beam

Suspension Wooden Rib

(2 23 .(60mm) to

33

.(90mm)

lumber)

Nut Square Washer

Wooden Beam

Square Washer Nut
Suspension Bolt

Fig. 4.4 Mounting the Suspension Bolts

4.3.2 Connection Points of Suspension Bolts and Pipes

in.(mm) Pipe

Pipe

Drain Pipe

4.3.3 Mounting the Indoor Unit

Mount the indoor unit as shown in Fig. 4.6.

Mount field-supplied parts

Suspension bolt

4-M10 or W3/8

Nut

8-M10 or W3/8

Washer

8-M10 or W3/8

(1) Mount nuts and washers to the suspension bolts.

Suspension Bolt (Field Supplied)
Nut (Field Supplied) * Insulating Washer
(Accessory) Bracket (for Fixing Indoor Unit)
Washer (Accessory) Nut (Field Supplied)

Approx. 2(50)

in.(mm)

Approx. 2(50) 4-21/64( )

Surface of Ceiling *Mount the washer with its insulating surface
facing down
Fig. 4.6 Mounting Nuts and Washers

(2) Lift the indoor unit by hoist, and do not put any force on the water pan.
(3) Secure the indoor unit using the nuts and washers.

(1 ( 3 (167) (Liquid Pipe) 29 32(150) (Gas Pipe)
4-21/64(110) 1-3/16(30)

Suspension Bolt

3 (3 ) Surface of Ceiling
Confirm the distance between the bottom surface of indoor unit andthe surface of ceiling.

unit(kBTU) 09 12 15 19 22 24 27 30 38 48 54

a 1/2(12.7 1/2(12.7 1/2(12.7 1/2(12.7 1/2(12.7 5/8(15.88) 5/8(15.88) 5/8(15.88) 5/8(15.88) 5/8(15.88) 5/8(15.88)

b 1/4(6.35) 1/4(6.35) 1/4(6.35) 1/4(6.35) 1/4(6.35) 3/8(9.53) 3/8(9.53) 3/8(9.53) 3/8(9.53) 3/8(9.53) 3/8(9.53)

in.(mm)
c 10-15/64(260) 10-15/64(260) 10-15/64(260) 10-15/64(260) 10-15/64(260) 10-15/64(260) 12-13/64(310) 12-13/64(310) 12-13/64(310) 12-13/64(310) 12-13/64(310)

Fig. 4.5 Mounting Suspension Bracket

Suspension Bracket

Water Pan

Fig. 4. Mounting the Indoor Unit

Note: If a false ceiling has already been installed, be sure to complete all piping and wiring works inside the ceiling before hooking-up the indoor unit.

3

4.3.4 Adjust the Distance between Indoor Unit and Ceiling
&$87,21
Please cover the machine with plastic cloth to keep it clean during installation. Check the level of water pan using a water
level to avoid incorrect installation of drain discharge mechanism. The drain pipe side must be approximately 5mm lower than other parts. Tighten the nuts of the suspension brackets after the adjustment is completed. Apply LOCK-TIGHT paint to the bolts and nuts in order to prevent them loosening. Otherwise, abnormal noise or sounds may occur and the indoor unit may fall down. (1) The pattern board for installation is in the packing carton. Please cut it off.

(b) For ceiling without panel
Opening Size

Opening Size

Indoor Unit Surface of Ceiling

Suspension Bolt
Bolt (M6) Pattern Board for Installation

4. Mounting Indoor Unit
(2) Adjust the indoor unit to the correct position using the factory-supplied inspection ruler

Ceiling

in.(mm)

21/64~1-3/8 ( 0~ )

Indoor Unit

55/64(22)

21/64~1-3/8 ( 0~ )

Flange Surface

Indoor Unit (Bottom View)

Surface of Suspended Ceiling

(a) For suspended ceiling with panel installed

Put the inspection ruler below the indoor unit

Put the inspection ruler at surface of suspended ceiling

Opening size of inspection ruler
Check the heights of suspended ceiling and indoor unit at each corner Check the size of each side

Installation Details for Air Panel
The details of installation work for air panel shall be according to the Installation Manual.
Check to ensure the proper connection of connectors between the indoor unit and air panel.
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‘$1*(5
Use refrigerant R410A in the refrigerant cycle. Do not charge oxygen, acetylene or other flammable and poisonous gases into the refrigerant cycle when performing a leakage test or an air-tight test. These gases are extremely dangerous and can cause an explosion. It is recommended nitrogen be used for those tests.
5.1 Piping Materials (1) Prepare locally-supplied copper pipes. (2) Select clean copper pipes. Make sure there is no
dust and moisture inside. Blow the inside of the pipes with nitrogen or dry air, to remove any dust or foreign matters before connecting pipes. (3) Select copper pipes based on Fig. 5.2.

4

5.2 Piping Connection
(1) The connection point and diameter of piping are shown in Figs. 5.1 and 5.2.

(2) As shown in Fig. 5.4, two spanners shall be used for

33-5/64( 0) (
6-19/64(160) (Liquid Pipe) 3-47/64(9 ) (Gas Pipe)

Unit: in.(mm) )

6-37/64(167) (Connected to Liquid Pipe)
5-29/32(150) (Connected to Gas Pipe)

Fig. 5.1 Pipe Connection Points

Capacity of indoor unit(kBtu/h) 09~22 24~54

Gas Pipe 1/2(12.7) 5/8(15.88)

Unit: in.(mm) Liquid Pipe 1/4(6.35) 3/8(9.53)

Fig. 5.2 Pipe Diameter

Since the nut cap connected at gas pipe is designed exclusively for R410A, the piping flaring connected for off-factory installation is adjusted as compared with R22 and R407C. Please perform the processing operation based on the dimensions shown below: (See Fig. 5.3)

900 ±20 450 ±20
R0.4~0.8
a D0-0.4

Outside Diameter of Piping (a)

Outside Diameter

R22R407C

of Flaring

(D)

R410A

Unit: in. (mm)

1/2

5/8

(12.7) (15.88)

41/64 49/64 (16.2) (19.4)

21/32 25/32 (16.6) (19.7)

Fig. 5.3 Flaring

Pipe Size .(mm) Tightening Torque ft· (N.m)

1/4(6.35)

10.3~13.3(14~ )

3/8(9.53)

29.5(40)

1/2(12.7)

44.3(60)

5/8(15.88)

48.7~56.8(63~77)

3/4(19.05)

73.8(100)

Fig. 5.4 Nut tightening torque (3) Insulate the refrigeration piping with field-
supplied insulating pipe upon completion of refrigerant pipe connection. See Fig. 5.5.

Cord Clamp (Factory-Supplied)

Insulating Pipe (Field-Supplied)
Refrigeration Piping
(Field-Supplied)

Unit Side

Insulating Pipe

Insulating Pipe (Field-Supplied)

Fig. 5.5 Insulation on Pipes

&$87,21
Cap the end of the pipe when the pipe is to penetrate a hole.
Do not put pipes on the ground directly without a cap or vinyl tape arranged at the end of the pipe.
Do not put pipes on the ground directly
Correct

Incorrect Blocked with Tape or Plug
(4) Discharging and Charging Refrigerant Follow the Installation & Maintenance Manual for outdoor unit.
&$87,21
Excessive and inadequate refrigerant is a leading cause of system anomaly. Please inject the right amount of refrigerant.

5

‘UDLQ3LSH
(1) The position of the drain pipe connection is shown .

t in.(mm)

2-11/64(55)

Connected to Drain Pipe

3-15/64(82)

&$87,21
Where the relative humidity of air inlet or ambient air exceeds 80%, an auxiliary water pan shall be fabricated at installation site and placed under the indoor unit, as shown in Fig. 6.2.
Indoor Unit

7-41/64(194)

(2) Prepare a polyvinyl chloride pipe with a 32mm outer diameter.
(3) Fasten the tubing to the drain hose with the adhesive agent and the factory-supplied clamp. The drain pipe must be performed with a down-slope pitch of 1/25 to 1/100.

a (11-13/16(300) max.)

Hose Clamp (Accessory)

t in.(mm)

c (1-31/32(50) max.)

33 32(850)Max.

Drain Pipe Connection

Hose Clamp (Accessory)

1/25 to 1/100 Down-Slope Drain Hose (Accessory)

Drain Hose (Accessory)

Vinyl Chloride VP25 (Field Supplied)

Upward Slope

Rising Part

Unit

Condensate Pan
Field-Supplied
Water Outlet Fig. 6.2 Auxiliary Water Pan
&$87,21
(1) The drain pipe installed shall slope down; otherwise, the condensate may flow back and leak into the room when the indoor unit is turned off.
(2) The drain pipe shall not be connected with sewage pipe or other drain pipes.
(3) Where the main drain is connected to other indoor units, each indoor unit must be higher than the main. Select drain pipes in ample size depending on the refrigerating capacity and quantity of indoor units.
(4) Check if water flows without obstruction following the procedure shown below after the proper connection of wires and drain pipes.

3-15/16(100) Min.

1/25 to 1/100Down-Slope

Drain Pipe Connection

Common Drain Pipe
This drain pipe shall be separating from other pipes.
Fig. 6.1 Drain Pipe
The total length a+b+c shall be 3.6ft.(1.1m). In case of lifting the drain pipe at the outlet part,
perform the drain piping work as shown in the figure above. (4) Insulate the drain pipe after connecting the drain hose. Hose Clamp (Accessory)

a.Turn on the power.
b.Fill the water pan with 2L or 2.5L of water. c.Check and ensure the water flows without
obstruction and no leakage exists. Pour 2L of water if no water flows out of pipe end.

Inject water via access opening.

Insert the end of hose between heat exchanger and water pan.

Access Opening Water Pump Water (2L or 2.5L)

Inject water via air outlet.
Insert the end of hose between heat exchanger and water pan.

Packing(Accessory)

Water Pan Water Pump
Water (2L or 2.5L)

6

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7.2 Wiring

:$51,1*

Turn OFF the main power switches to the indoor

unit and outdoor unit before electrical wiring or

periodical check, and wait for at least three

minutes.

Check to ensure the indoor and outdoor fans

have stopped before electrical wiring or

periodical check.

Protect the wires, drain pipes, electrical parts,

etc. from rats or other small animals. If not

protected, rats may gnaw at unprotected parts,

which may lead to a fire.

Avoid the contact of wires with the refrigerant

piping, sheet metal edges and electrical

components in unit. Otherwise, the wires may get

damaged or even cause a fire.

Use ELB with medium sensing rate (earth

leakage breaker with action time being equal to

0.1 seconds or less). The failure to do so may

result in electric shock or fire.

The wires must be firmly secured. External force

applied to terminals may cause a fire.

t f dd t

t

tf

t

tm

. At the indoor

unit side of air conditioner, power wiring can be

extended through a power distribution box. Be

sure to calculate the wiring capacity carefully,

since excessively low wiring capacity may

frequently cause fire.

Do not start the system before all check points

are thoroughly checked.

CAUTION

The electrical wiring connection for indoor unit is shown in Fig. 7.1. (1) Connect transmission wiring to the PBC
in electrical box through the connection hole on electrical box. (2) Connect the power ZLULQJ and earth wires to the terminals in the electrical box. (3) Connect the wires between the indoor unit and the outdoor unit to the terminals in
electrical box.

Wrap the wires with adhesive tape or other materials

and plug the wiring connection hole with seal

material to protect the product from any

condensate water or insects.

The electrical box entrance hole shall be

designed with wire clamp that must be tightened

to address tension requirements when penetrated by wires.

B

Secure the remote controller wire in electrical box

with wire tie.

Tighten screws to the following torques.

M4: 0.7(1.0)~1(1.3) M5: 1.5 2.0)~1.8(2.4) M6: 3(4.0)~3.7(5.0) M8: 6.6(9.0)~8.1(11.0) M10: 13.3(18.0)~17(23.0)

t ft ( m)

L1 L2

08/230

7.1 General Check (1) Make sure that the field-selected electrical components (main power switches, circuit breakers, wires, conduit connectors and wire terminals) comply with the National Electrical Code. (2) Check to ensure that the power supply voltage is within ±10% of the rated voltage. The system can’t be started in the case of excessively low supply voltage. (3) Check the power capacity. (4) Ensure the ground wire is connected.

7

Connecting Hole for Communication Cables and Wire Controller Cables

7/8 in.(22.2mm) Conduit Hole

Connecting Hole for Power Supply Wiring

CAUTION

7.3 d

Fig. 7.1 Electrical Wiring Connection for Indoor Unit f

Model (kBtu/h) CHV-09~30SCC4W CHV-38~54SCC4W

Units Hz
60

Volts

Voltage range

Power supply

MCA

MOP

Max.253V 1.19

15

208/230V

Min.187V

2.15

15

Power supply Communication

wiring size

Cable Size

Wiring size and length must
comply with local codes.

AWG18*1 (0.82mm2)

Fan motor

kW

FLA

0.06

0.26

0.13

0.65

Note: MCA: Min. Circuit Amps (A) MOP: Max. Overcurrent Protective Device (A) kW: Fan Motor Rated Output (kW) FLA: Full Load Amps (A)

(1) Use a shielded cable for the transmitting circuit and connect it to ground.

(2) Field wiring shall be in conformity to local laws and regulations, and all wiring operations

mt

f md

fd f

.

(3) Once the power cord is damaged, the dealer or the professionals from designated

maintenance department must be contacted in a timely manner for repair and replacement.

8

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Test run should be performed according to the Installation & Maintenance Manual.

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Do no operate the system until all the check points are cleared.
(A) Check to ensure the electrical resistance between terminal and ground is more than 1 M. If this is not the case, do not operate the system until the electrical leakage is found and repaired.
(B) Check to ensure the stop valves of outdoor unit are fully opened, and then start the system.
(C) Check to ensure the switch on main power source has been ON for more than 4 hours to warm the compressor by heater.

Pay attention to the following items while the system is running. (A) Do not touch any of the parts by hand at the discharge gas side, since the temperatures of compressor chamber and the pipes at the discharge side are higher than 194°F(90°C). (B) DO NOT PUSH THE BUTTON OF THE AC
CONTACTOR. It will cause a serious accident.

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Indoor Unit

Capacity of Indoor Unit t

Capacity of Fuse on Indoor Unit Control

Circuit

‘

Freeze Protection Temperature

Cut-out Cut-in

°F(°C) °F(°C)

0~
5 32(0) 58(14)

9

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10.1 Setting of D Switches
(1) DIP switch must be set with power sources of the indoor and outdoor units in OFF state. Otherwise, the settings are invalid.
(2) The DIP switches are located as shown in the figure below.

(3) 6 dip switches are arranged on the PCB of indoor unit, and must be set based on the following instructions before test run. The system shall not be started before the completion of dip switch setup.
(a) $GGUHVVRILQGRRUXQLWV (DSW6): All indoor units must be numbered in sequence based on the diagram below. Outdoor units must be numbered from “0”.

Setting Method

DSW6 (Setting 0~63)

123

ON OFF

Note: 8421 coding method

Ex.) SetDGGUHVV1R
DSW6 ON
1 2 3 4 5 6 OFF No. isON

(b) Refrigeration system cycle No. (RSW2 & DSW5) is required to be set. All are set
to OFF before shipment.

(c) Safety reset (DSW7) Factory settings

Once strong current is accidentally connected to Terminals 1 and 2 of TB2, the PCB fuse will be blown. In such a case, it’s essential to correct the wiring and then to set switch No. 1 to ON position.
Note:
Symbol ” ” indicates the location of DIP switch. The position indicated in the diagram is in the factory-set state.
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The power supply shall be turned off before the setup of DIP switch. Otherwise, the settings will be invalid.

10.2 Setting of Fan Speed

The air volume can be changed by performing external static pressure setup (“C5”) on wired controller. Please refer to the wired controller Installation & Maintenance Manual.

Height of Ceiling