Mitsubishi Heavy Industries FDE100VNPWVH Data Book Download

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'19 • PAC-DB-333

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6. FORMING PIPING AND DRAIN HOSE

1. Forming piping

Piping is possible in the right, rear, downward, left, left rear or left downward direction.

NOTE

Suf

cient care must be taken not to damage

the panels when connecting pipes.

Piping in the left direction

Piping in the left rear direction

Piping in the right rear direction

Piping in the right direction

Forming of pipings.

• Hold the bottom of the piping and

x direction

before stretching it and shaping it.

Taping of the exterior

• Tape only the portion that goes through the wall.

• Always tape the wiring with the piping.

Pipings

Drain hose

2. Drain change procedures

(1) Remove the screw and drain hose.

(2) Remove the drain cap by hand or pliers.

(3) Insert the drain cap which was removed at procedure (2) securely using a hexagonal wrench etc.

(4) Install the drain hose and screw securely.

)

(

)

(

)

(

)

(

Screw

cap

CAUTION

Incorrect installation of drain hose and cap can cause water leakage.

7. DRAINAGE WORK

• Arrange the drain hose in a downward angle.

• Avoid the following drain piping.

Higher than

specified

Wavy

The drain hose

tip is in water.

The gap to the ground

is 5 cm or less.

The drain hose tip

is in the gutter.

Odor from

the gutter

• Pour water to the drain pan located under the heat exchanger, and ensure that the water is discharged outdoor.

• When extended drain hose is present inside the room, insulate it securely with heat insulator available in the market.

Gutter

Wall

Pipe space

Since this air-conditioner is designed to collect dew drops on the rear surface to the

drain pan, do not install the connecting wire above the gutter.

CAUTION

Incorrect drainage work can cause water leakage.

8. INSTALLING INDOOR UNIT

Installing the indoor unit to installation board

Indoor unit

Base latch (2 locations)

Installation board

Indoor unit base latch

Installation board

Wall

(1) Pass the pipe through the hole in

the wall, and hook the upper part

of the indoor unit to the installation

board.

(2) Gently push the

lower part to

the indoor unit

base lower latch to

installation board.

Removing the indoor unit from installation board

Base latch

(1) Push up at the marked portion of the indoor unit base latch,

and slightly pull it toward you (both right and left hand sides).

(The indoor unit base latch can be removed from the installation

board.)

(2) Push up the indoor unit upward so that it can be removed from

installation board.

9. CONNECTING PIPING WORK

1. Preparation of connecting pipe

1.1. Selecting connecting pipe

Select connecting pipe according to the following table.

Model SRK63

Model SRK71/80

Model SRK100

Gas pipe

ø12.7

ø15.88

Liquid pipe

ø6.35

ø9.52

• Pipe wall thickness must be greater than or equal to 0.8 mm (ø15.88:1.0mm).

• Pipe material must be O-type (Phosphorus deoxidized seamless copper pipe ICS 23.040.15, ICS

77.150.30).

1.2. Cutting connecting pipe

(1) Cut the connecting pipe to the required length with pipe cutter.

(2) Hold the pipe downward and remove the burrs. Make sure that no foreign material enters the pipe.

(3) Cover the connecting pipe ends with the tape.

2. Piping work

2.1. Flaring pipe

(1) Take out

are nuts from the operation valves of indoor unit and engage them onto connecting pipes.

(2) Flare the pipes according to table and

gure shown below.

Flare dimensions for R32 are different from those for conventional refrigerant.

Although it is recommended to use the

aring tools designed speci

cally for R32 or R410A, conven-

tional

aring tools can also be used by adjusting the dimension B with a

are adjustment gauge.

Copper pipe

outer diameter

Copper pipe

outer diameter

B [Rigid (clutch) type]

R32 or R410A Conventional

0-0.5

1.0-1.5

2.2 Connecting pipes

(1) Connect pipes on both liquid and gas sides.

(2) Tighten nuts to speci

ed torque shown in the table below.

(Do not turn)

Liquid side

Gas side

Operation valve size (mm)

Tightening torque (N·m)

ø6.35 (1/4")

14-18

ø9.52 (3/8")

34-42

ø12.7 (1/2")

49-61

ø15.88 (5/8")

68-82

CAUTION

• Do not apply refrigerating machine oil to the

ared surface. It can cause refrigerant leakage.

• Do not apply excess torque to the

ared nuts. The

ared nuts may crack resulting in refrigerant

leakage.

3. Heating and condensation prevention

(1) Dress the connecting pipes (both liquid and gas pipes) with insulation to prevent it from heating and

dew condensation.

Use the heat insulating material which can withstand 120°C or higher temperature. Make sure that insu-

lation is wrapped tightly around the pipes and no gap is left between them.

(2) Wrap the refrigerant pipings of indoor unit with indoor unit heat insulation using tape.

(3) Cover the

are-connected joints (indoor side) with the indoor unit heat insulation and wrap it with an in-

sulation pad (standard accessory provided with indoor unit).

(4) Wrap the connecting pipes, connecting cable and drain hose with the tape.

)

(

)

(

)

(

Tape

Insulation pad

Position it so that the slit area faces upward.

Connecting cable

Liquid pipe

Drain hose

Gas pipe

Insulation

Tape

NOTE

Locations where relative humidity exceeds 70%, both liquid and gas pipes need to be dressed with 20mm or

thicker heat insulation materials.

CAUTION

• Improper insulation can cause condensate(water) formation during cooling operation.

Condensate can leak or drip causing damage to household property.

• Poor heat insulating capacity can cause pipe outer surface to reach high temperature during heating

operation. It can cause cable deterioration and personal injury.

4. Finishing work

Pipe

assembly

(h)Screw

(h)Clamp

(1) Make sure that the exterior portion of connecting pipes, connecting cable

and drain hose is wrapped properly with tape. Shape the connecting pipes

to match with the contours of the pipe assembly route.

(2) Fix the pipe assembly with the wall using clamps and screws. Pipe assem-

bly should be anchored every 1.5m or less to isolate the vibration.

(3) Install the service cover securely. Water may enter the unit if service cover

is not installed properly, resulting in unit malfunction and failure.

WARNING (only for R32)

• To avoid the risk of

re or explosion, the

ared connection

must/shall be installed outdoors.

• Reusable mechanical connectors and

flfl

ared joints are not

allowed indoors.

CAUTION

Make sure that the connecting pipes do not touch the components within the unit. If pipes touch the

internal components, it may generate abnormal sounds and/or vibrations.

10. HOW TO OPEN, CLOSE, REMOVE AND INSTALL

THE AIR INLET PANEL

11. HOW TO REMOVE AND INSTALL FRONT PANEL

1. Open

Pull the air inlet panel at both ends of lower part

and release latches, then pull up the panel until

you feel resistance.

(The panel stops at approx. 60° open position)

2. Close

Hold the panel at both ends of lower part, lower

it downward slowly, then push it slightly until the

latch works.

3. Removing

Open the panel by 80° (as shown in the right

illustration) and then pull it forward.

4. Installing

Insert the panel arm into the slot on the front

panel from the position shown in right illustra-

tion, hold the panel at both ends of lower part,

lower it downward slowly, then push it slightly

until the latch works.

Air inlet panel

Panel arm

Approx. 80°

1. Removing

(1) Remove the air inlet panel and the air

lters.

(2) Remove the 8 screws.

(3) Remove the 5 upper latches and then front

panel can be removed.

2. Installing

(1) Cover the unit with the front panel and

x 5

upper latches.

(2) Secure the front panel with the 8 screws.

(3) Install the air inlet panel and the air

lters.

Front panel

Air inlet panel

Air filter

Screw

Latch

Mount the batteries

(1) Slide and take out the cover of backside.

(2) Mount the batteries [R03 (AAA, Micro),

×2 pieces] in the body properly.

(Fit he poles with the indication marks + &

−

)

(3) Set the cover again.

NOTE

• Do not use new and old batteries together.

• In case the unit is not operated for a long time,

take out the batteries

Installing remote control holder

(1) Select the place where the unit can receive

signals.

(2) Fix the holder to pillar or wall with wood

screws.

To install wired remote control,

superlink etc., interface kit is

needed.

(1) Remove the air inlet panel and

front panel.

(2) Remove the control cover.

(Remove the screw.)

(3) There is a terminal

(respectively marked with CNS)

for the indoor control board.

While connecting an interface,

connect to the respective

terminal securely with the

connection harness supplied

with an optional “Interface

connection kit SC-BIKN-E and

SC-BIKN2-E” and fasten the

connection harness onto the

indoor control box with the

clamp and screw supplied with

the kit.

For more details, refer to the

user’s manual of “Interface

connection kit SC-BIKN-E and

SC-BIKN2-E”.

Indoor unit PCB

Screw

Control cover

CNS terminal

Cover

Wood screws

ø3.5 X 16

Remote control

Battery

14. INSTALLING TWO AIR-CONDITIONERS IN THE SAME ROOM

15. PUMP DOWN WORK

In case two air-conditioners are installed in the same room, apply this setting so that one unit can be

operated with only one remote control.

For the environmental protection, be sure to pump down when relocating or disposing of the unit. Pump

down is the method of recovering refrigerant from the indoor unit to the outdoor unit before the connect-

ing pipes are removed from the unit. When pump down is carried out, forced cooling operation is needed.

Setting one remote control

(1) Slide and take out the cover and batteries.

(2) Cut the switching line next to the battery

with wire cutters.

(3) Set the batteries and cover again.

Cut

Setting one indoor unit

(1) Turn off the power source and turn it on after

1 minute.

(2) Send the signal by pressing the ACL switch

on the remote control that was set according

to the procedure described on the left side.

(3) Check that the reception buzzer sound

“peep” is emitted from the indoor unit. Since

the signal is sent about 6 seconds after the

ACL switch is pressed, point the remote

control to the indoor unit for a while.

NOTE

If no reception buzzer is emitted, restart the set-

ting from the beginning.

Reception

peep

TIME SET

UP ACL

Forced cooling operation

(1) Turn off the power source and turn it on

again after 1 miniute.

(2) Press the ON/OFF button continuously for at

least 5 seconds. Then operation will start.

For the detail of pump down, refer to the instal-

lation manual of outdoor unit.

Unit ON/OFF button

16. INSTALLATION CHECK AND TEST RUN

After

nishing the installation work, check the following points again before turning on the power. Conduct a test run and ensure that the unit operates properly.

At the same time, explain to the customer how to use the unit and how to take care of the unit following the user’s manual.

Before test run

Before test run, check following points.

Power source voltage complies with the rated voltage of

air-conditioner.
Earth leakage breaker and circuit breaker are installed.
Power cable and connecting cable are securely

xed to

the terminal block.
Both liquid and gas operation valves are fully open.
No gas leaks from the joints of the operation valves.
Indoor and outdoor side pipe joints have been insulated.
Hole on the wall is completely sealed with putty.
Drain hose and cap are installed properly.
Screw of the lid is tightened securely.

Test run

Check following points during test run.

Indoor unit receives signal of remote control.
Air-conditioning operation is normal.
There is no abnormal noise.
Water drains out smoothly.
Display of remote control is normal.

After test run

Explain the operating and maintenance methods to the

user according to the user’s manual.
Keep this installation manual together with user’s

manual.

NOTE

During restart or change in operation mode, the unit will not start

operating for approximately 3 minutes. This is to protect the unit

and it is not malfunction.

RLD012A018

Wall

Seal hole with putty

Flared joint outside