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3. INSTALLATION
The circulating air for every unit should be more than 350m
see Fig.2-3,Fig.2-4)
3.1 Water System Piping
Barrel-drain
Water inlet or outlet pipes: The spec of the water inlet or outlet thread
is RC3/4" (external thread). Pipes must be heat-insulated well.
1)
Installation of the pipe for PT valve: The spec of the valve
connecting thread is RC3/4" (internal thread). After installation, it
must be confirmed that the drainpipe outlet is exposed in the air.
CAUTION
Piping water system as the above gure. In
case of installing it at a place where outside
temperature below freezing point, insulation
must be provided for all hydraulic components.
The handle of PT Valve should be pulled out
once per half a yearto make sure that there is
no jam of the valve. Please beware of burn,
beware of the hot water from the valve.
The drainage pipe should be
well insulated in order to
prevent water inside pipe from
freezing in cold weather.
WARNING
Do not dismantle the PT Valve.
Do not block o the drainage pipe.
It will cause explosion and injury, if
do not comply with the above
EXPLOSION
instruction.
Upper
Condensate Outlet
Lower
Condensate Outlet
PT Valve
Shut Off Valve
Drainage pipe
/h.Make sure there is enough installation space.Outline dimensional drawing(-
3
Water Outlet
Note:
Water temperature limiting valve
is recommended for mixing the
inlet cold water with outlet hot
water to prevent burns caused
by hot water
One Way Valve
Water Inlet
Expansion Tank for pressure
relief(recommended)
Installation of the One Way Valve: The spec of the One Way
2)
Valve thread in accessories is RC3/4". It is used to prevent water
from flowing backwards.
After water system piping work, turn on the cold water inlet valve
3)
and hot water outlet valve and start effusing the tank. When
water flow smoothly out from water outlet pipe(tap water outlet),
the tank is full, turn off all valves and check pipeline to make sure
there is no any leakage.
4)
If the inlet water pressure is less than 0.15MPa, a pump should
be installed at the water inlet.
For guarantee the safety usage of tank at the condition of water
supply pressure higher than 0.65MPa, a reducing valve should
be installed at the water inlet pipe.
Condensate may be leaked from unit if drainage pipe is blocked
5)
or unit operates in high humidity environment, a drainage pan is
Handle
recommanded as shown as following figure:
Drainage
pipe
Max.22mm
5
User
Temp. Limiting Valve
Shut Off Valve
Tap Water
Fig.3-1
Heat Pump
Water Heater
50mm larger than
the dia. of unit
Fig.3-2
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