Daikin RXYMQ36MVJU Instruction Manual download pdf (Page 20)

EDUS39-606A-N Installation

Installation of Outdoor Units 19

•

From that position, further tighten the flare nut the angle

shown below.

• After the work is finished, make sure there is no gas

leak.

Disposal requirements

Dismantling of the unit and treatment of the refrigerant, oil, and

other parts should be comply should be in compliance with the

relevant local and national regulations. Refrigerant piping work

procedure:

• The field piping can be connected in four directions.

Piping cover

Screw for

front panel

Screw for piping

cover (front)

Front

panel

Lateral

direction

Front direction

Rear

direction

Downward

direction

• When connecting the piping in the lateral direction (on

the rear), remove the piping cover (rear) and receiver

mounting plate in reference to the figure below.

Receiver mounting plate

Piping cover (rear)

• When connecting the pipings downward, remove the

knockout by making four holes in the middle on the

each side of the knockout with a drill.

Field pipings

Bottom frame

Knockout

Drill

Slit

Middle on the side

Slit

• Then cut out the corner of the bottom frame along the

slits (in two positions) by using a hacksaw.

• After removing the parts, paint the edges to prevent

rusting.

• Ensure that the field pipings do not touch the terminal

cover of the compressor. Especially when the insula

tion provided on the liquid piping touches the terminal

cover, adjust its height as shown in the figure above.

Make sure that the piping does not touch the bolts of

the compressor and the outer panels.

• When it is expected that condensed water in the stop

valve will reach the indoor unit through the gap

between the heat insulating material and the piping

(for example, when the outdoor unit is installed in a

higher position than the indoor unit), take proper

action such as caulking the connection area.

• To prevent invasion of small creatures and litter: Block

all gaps in the piping penetration areas with putty or

heat insulating material (arranged in teh local field) as

shown in the figure below. If insects or litter enters the

outdoor unit, a short circuit in the electric parts box

may result.

• Heat Insulation of piping: Make sure to insulate the

field pipings (on both liquid and gas lines) and refrig-

erant branching kit. If they are not insulated, water

leakage can result.

• The maximum temperature of the piping on the gas

line is about 248

F during heating operation. Use an

insulation sufficiently resistant to this temperature.

• Reinforce the refrigerant piping according to the

installation environment. If it is not reinforced, con-

CAUTION

densate may form on the surface of the insulation.

• Make sure to insulate the field piping up to the piping

connection area inside the unit. If the piping is

exposed, dew condensation and contact burns can

result.

Pipe size

Tightening angle

(Guideline)

Recommended arm

length of tool (in.)

φ 3/8”

(9.5mm)

60°~90°

Approx. 7 7/8”

(197.62mm)

φ 5/8”

(15.88mm)

30°~60°

Approx. 11 13/16”

(300.04mm)

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Daikin RXYMQ36MVJU Instruction Manual Page 20

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