Philips WH-SDC07C3E5, Service Manual

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51
CAUTION
CAUTION

An external filter (30 mesh or more, field supplied)
must be installed before the water inlet of the indoor
unit (with “WATER IN” indication).

Refer to Diagram 4.1 for pipe connection of
Radiator, Floor Heater, Tank Unit, Solar Pump
Station, 3-way Valve Kit, 2-way Valve Kit and etc.
Fail to connect the pipes appropriately might cause
the unit malfunction.
Diagram 4.1: Typical Water Piping Installation

Be sure to use two spanners to tighten the
connection. Further tighten the nuts with torque
wrench in specified torque as stated in the table.

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.

Finally, mount the PS foam
7
and long banding
strap 8 to water inlet and outlet connectors, as
shown in below illustration.
Nut size (Torque)
Model
Water
SDC07C3E5/UD07CE5**,
SDC09C3E5/UD09CE5**
Rp 1¼”” [117.6 N•m]
Do not over tighten, over tightening cause water leakage.
11.3.3.3 Indoor Unit 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:
o
Align the center of piping and sufficiently
tighten the flare nut with fingers.
o
Further tighten the flare nut with torque
wrench in specified torque as stated in the
table.
Piping size (Torque)
Model
Gas Liquid
SDC07C3E5/UD07CE5**,
SDC09C3E5/UD09CE5**
ø15.88 mm (5/8”)
[65 N•m]
ø6.53 mm (1/4”)
[18 N•m]
Do not over tighten, over tightening cause gas leakage.
11.3.3.4 Drain Hose Installation

Use inner diameter 15 mm drain hose in the market.

This hose must to be installed in a continuously
downward direction and in a frost-free environment.

Guides this hose’s outlet to outdoor only.

Do not insert this hose into sewage hose or
cleaning hose that may generate ammonia gas,
sulfuric gas, etc.

If necessary, use hose clamp to further tighten the
hose at drain hose connector to prevent leakage.

The water may drip from drain hose. Therefore
must ensure the outlet of the hose is always not
closed or blocked.