EnStar Split Wall Mounting Type Installation Manual - Page 2

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6. Piping and Bandaging

Right-hand piping

Left-hand piping

Slid Part cover

1. Outdoor Installation Precaution

Install the outdoor unit on a rigid base to prevent increasing noise level

and vibration.

Determine the air outlet direction where the discharged air is not

blocked.

In the case that the installation place is exposed to strong wind such as

a seaside or high position, secure the normal fan operation by putting

the unit lengthwise along the wall or using a dust or shield plates.

Specially in windy area, install the unit to prevent the admission of wind.

If need suspending installation, the installation wall should be solid brick, concrete or the same

intensity construction, or actions to reinforce, damping, supporting should be taken. The

connection between bracket and wall, bracket and the air conditioner should be firm, stable and

reliable.

If need suspending installation, the installation bracket should accord with technique requirement in

the installation bracket diagram.

3. Refrigerant Piping Connection

1. Flaring

1. Cut a pipe with a pipe cutter.

Oblique

Rough-mess

Burr

2. Insert a flare nut into a pipe and flare the

pipe.

A (mm)

Outlet diam.

(mm)

Max.

Min.

6.35

1.3

0.7

9.53

1.8

12.7

1.0

1.8

2.4

2.2

1. Air Purge

Choose purge method from the table:

Additional amount

Connective

Air purging

of refrigerant to be

pipe length

method

charged

Use vacuum

Less than 5m

pump

Use vacuum

5 ~ 10m

(L-5)X30g

pump

When relocate the unit to an other place,

perform evacuation. using vacuum pump .

For the R407C/R410A refrigerant models,

make sure the refrigerant added into the air

conditioner is liquid form in any case.

Caution in Handing the Packed Valve

Open the valve stem until it hits against the

stopper. Do not try to open it further.

Securely tighten the valve stem cap with a

spanner or the link.

Valve stem cap tightening torque.

(See Tightening torque table above)

Outdoor unit

Refrigerant

Indoor unit

Gas side

Liquid side

Packed valve

Half union

Flare nut

Stopper

Cap

Valve body

Valve stem

INDOOR UNIT INSTALLATION

For the left-hand and right-hand piping, remove the

rear plate bushing from the left side of the rear plate.

Explain to clients that the rear plate bushing must be

kept as it may be used when relocate the air

conditioner to any other place.

Wind the connective cable, drain hose and wiring with

Rear-right piping

tape securely, evenly.

Rear-left piping

OUTDOOR UNIT INSTALLATION

Strong

wind

2. Tightening Connection

Align pipes to be connected.

Sufficiently tighten the flare nut with fingers,

and then tighten it with a spanner and torque

wrench as shown.

Caution

Excessive torque can break nut depending

on installation conditions.

Outlet

Tightening

Additional tighten-

diam.

torque

ing torque

1570(N.cm)

1960(N.cm)

6.35mm

(160kgf.cm)

(200kgf.cm)

3040(N.cm)

3430(N.cm)

9.53mm

(310kgf.cm)

(350kgf.cm)

4900(N.cm)

5390(N.cm)

12.7mm

(500kgf.cm)

(550kgf.cm)

7360(N.cm)

7850(N.cm)

16mm

(750kgf.cm)

(800kgf.cm)

AIR PURGE AND TEST OPERATION

Using the Vacuum Pump

(For method of using a manifold valve, refer to its

operation manual)

Completely tighten the flare nuts A, B, C, D,

connect the manifold valve charge hose to a

charge port of the packed valve on the gas

pipe side.

Connect the charge hose connection to the

vacuum pump.

Fully open the handle Lo of the manifold valve.

Operate the vacuum pump to evacuate. After

starting evacuation, slightly loose the flare nut

of the packed valve on the gas pipe side and

check that the air is entering. (Operation noise

of the vacuum pump changes and a

compound meter indicates 0 instead of minus )

After the evacuation is complete, fully close

the handle Lo of the manifold valve and stop

the operation of the vacuum pump.

Make evacuation for 15 minutes and more and

check that the compound meter indicates

-76cmHg.

Turn the stem of the packed valve B about

45 counterclockwise, securely tighten the

flare nut after 6-7 seconds.

Disconnect the charge hose from the charge

connection of the packed valve at the gas pipe

side.

Fully open the packed valves B and A.

Securely tighten the cap of the packed valve.

Manifold valve

Compound meter

Pressure gauge

-76cmHg

Handle Hi

Handle Lo

Charge hose

Vacuum pump

Packed valve at the gas pipe side

Install the drain hose at the bottom of the connective cable.

Reasonably and carefully arrange and bandage the piping in

case to damage the drain hose and connective piping.

Connective piping

Make sure to run the drain hose sloped downward to drain out

the condensation smoothly.

Never intercross nor inter twist power line with any other wiring.

2. Drain Elbow Installation

Base pan hole of

Drain elbow

Seal

outdoor unit

Seal

Drain pipe

4. Wiring Connection

1. Remove the cover control from the

unit by loosening the 3 screws.

2. Dismount caps on the conduit panel.

3. Temporarily mount the conduit tubes

(not included) on the conduit panel.

4. Properly connect both the power supply

and low voltage lines to the corresponding

terminals on the terminal block.

5. Ground the unit in accordance with local

codes.

6. Be sure to size each wire allowing several

inches longer than the required length for

wiring.

7. Use lock nuts to secure the conduit tubes.

WARNING

Be sure to comply with local codes while

running the wire from the indoor unit to

the outdoor unit.

Every wire must be connected firmly.

No wire should be allowed to touch

refrigerant tubing, the compressor

or any moving parts.

Loose wiring may cause the terminal to

overheat or result in unit malfunction.

A fire hazard may also exit. Therefore,

be sure all wiring is tightly connected.

Note : To prevent wires loosening or leaving the Cord

Clamp, please select proper cord diameter to fill the

holes on the cord clamp.

2. Gas Leak Check

Make sure no gas from connections with

leak detector or soap water.

Indoor unit

check point

Electrical box

Outdoor unit

check point

Caution

A: Lo packed valve B: Hi packed valve

C and D are ends of indoor unit connection.

Caution

. .

Connective cable

. . . .

. .

Drain hose

Tape

Fit the seal into the drain elbow, then

insert the drain elbow into the base pan

hole of outdoor unit, rotate 90 to

securely assemble them. Connecting

the drain elbow with an extension drain

hose (Locally purchased), in case of

the water draining off the outdoor unit

during the heating mode

Outdoor unit

Terminal block

Conduit panel

Connecting

cable

Power supply

cord

Cover control

Terminal block

Cord clamp

Cap

(remove)

Power supply

line

To indoor unit

3. Test Operation

Perform test operation after completing gas

leak check at the flare nut connections and

electrical safety check.

Check that all tubing and wiring have been

properly connected.

Check that the gas and liquid side service

valves are fully open.

1. Connect the power, press the ON/OFF

button on the remote controller to turn the

unit on.

2. Use the MODE button to select COOL, HEAT

(cooling & heating modles only ), AUTO and

FAN to check if all the functions works well.

3. When the amient temperature is too low

(lower than 17 C), the unit can not be

contro lled by the remote controller to run

at cooling mode, manual operation can be

taken. Manual operation is used only when

the remote controller is disable or mainten-

ance necessary.

Hold the panel sides and lift the panel up to

an angle until it remains fixed with a

clicking sound.

Press the Manual control button to select

the AUTO or COOL, the unit will operate

under Forced AUTO or COOL mode

(see User Manual for details).

4. The test operation should last about

30 minutes.

Manual switch

CS361-I2

2200019130