Panasonic WH-SXC09H3E8 Service Manual page 63

2. Gently pull the lower section of the front plate
towards you to remove the front plate from left and
right hooks.
3. Hold the left edge and right edge of front plate to
lift up front plate from hooks.
Screws
11.1.4.2 Install the indoor unit
1. Engage the slots on the indoor unit to the hooks of
1
installation plate . Ensure the hooks are properly
seated on the installation plate by moving it left
and right.
5
2. Fix the screws to the holes on the hooks of
4
installation plate , as illustrated below.
Slots
Indoor unit back
11.1.4.3 Water Piping Installation

The minimum requirement of water in the system
is 50 litres. If this value could not be achieved,
please install additional buffer tank (field supply).

Water inlet and water outlet in indoor unit are used
for connection to water circuit. Please request a
licensed technician to install this water circuit.
Hook
Lift up
1
Installation plate
Hooks
Wall
4
Installation plate
Screws 5
Note: Do not lift the
Indoor Unit by holding the
refrigerant and water pipe
to prevent damage of the
pipes.

This water circuit must comply with all relevant
European and national regulations, i.e. IEC/EN
61770.

Be careful not to deform the piping to excessive
force when doing piping connection job.

Use Rp 1 ¼" nut for both water inlet and outlet
connection and clean all pipings with tap water
before connecting to the indoor unit.

Cover the pipe end to prevent dirt and dust when
inserting it through a wall.

Choose proper sealer which can withstand the
pressures and temperatures of the system.

If an existing tank is to be connected to this indoor
unit, ensure the pipes are clean before water pipe
installation is carried out.

Be sure to use two spanners to tighten the
connection. Tighten the nuts with torque wrench:
117.6N•m.
Indoor unit

If non-brass metallic piping is used for installation,
make sure to insulate the pipes to prevent
galvanic corrosion.

Make sure to insulate the water circuit pipes to
prevent reduction of heating capacity.

After installation, check the water leakage
condition in connection area during test run.
Do not over tighten, over tightening cause water leakage.
11.1.4.4 Refrigerant Pipe Installation
1 Please make flare after inserting flare nut (located
at joint portion of tube assembly) onto the copper
pipe. (In case of using long piping)
2 Do not use pipe wrench to open refrigerant piping.
Flare nut may be broken and cause leakage. Use
proper spanner or ring wrench.
3 Connect the piping:

Align the center of piping and sufficiently
tighten the flare nut with fingers.

Be sure to use two spanners to tighten the
connection.
Further tighten the flare nut with torque
wrench in specified torque as stated in the
table.
63
Torque wrench
Spanner
Water Inlet
Water Outlet
CAUTION