Panasonic (WH-UD12CE5-A-1, Руководство по обслуживанию

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If an existing tank is to be connected to this
indoor/outdoor unit, ensure the pipes are clean
before water pipe installation is carried out.
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An external filter (30 mesh or more, field supplied)
must be installed before the water inlet of the indoor
unit (with “WATER IN” indication).
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Refer to Diagram 4.1 for pipe connection of
Radiator, Floor Heater, Tank Unit, Solar Pump
Station, 3-way Valve Kit and etc. Fail to connect the
pipes appropriately might cause the unit malfunction.
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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.
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If non-brass metallic piping is used for installation,
make sure to insulate the pipes to prevent galvanic
corrosion.
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 Make sure to insulate the water circuit pipes to
prevent reduction of heating capacity.
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After installation, check the water leakage condition
in connection area during test run.
Nut size (Torque)
Model
Water
SDF07C3E5/UD07CE5**,
SDF09C3E5/UD09CE5**
Rp 1¼” [117.6 N•m]
CAUTION
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
SDF07C3E5/UD07CE5**,
SDF09C3E5/UD09CE5**
ø15.88mm (5/8”)
[65 N•m]
ø6.53mm (1/4”)
[18 N•m]
CAUTION
Do not over tighten, over tightening cause gas leakage.
11.3.3.4 Drain Hose Installation
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Use inner diameter 15 mm drain hose in the market.
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This hose must to be installed in a continuously
downward direction and in a frost-free environment.
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 Guides this hose’s outlet to outdoor only.
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Do not insert this hose into sewage or drain pipe
that may generate ammonia gas, sulfuric gas, etc.
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 If necessary, use hose clamp to further tighten the
hose at drain hose connector to prevent leakage.
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Water will drip from this hose, therefore the outlet of
this hose must be installed in an area where the
outlet cannot become blocked.