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Installation & Owner's Manual
3. INSTALLATION
The circulating air for every unit should be more than 350m
3
/h. Make sure there is enough Installation space. Refer outline dimensional
drawing(See Fig.2-3).
3.1 Water System Piping
1)
Water inlet or outlet pipes: The spec of the water inlet or outlet thread
is RC3/4” (external thread). Pipes must be heat-resistant and durable.
Installation of the pipe for PTR valve: The valve connecting thread
is RC3/4” (internal thread). After installation, it must be confirmed
that the drainpipe outlet is exposed in the air.
W ARNING
● Do not dismantle the PTR valve,
● Do not block off the drainage pipe, it will cause explosion
and injury.
EXPLOSION
CAUTION
Handle
Drainage
pipe
Piping water system as the above figure. In case of installing
where outside temperature falls below freezing point,
insulation must be provided for all hydraulic components.
The PTR valve should be checked every half year
to make sure that there is no restriction of the valve.
Please beware of hot water from the valve.
The drainage pipe should be well insulated
in order to prevent water inside pipe from
freezing in cold weather.
2)
3)
4)
5)
Installation of the One Way Valve: The One Way Valve thread is
RC3/4”. It is used to prevent water from flowing backwards.
After connection of the water system piping work, turn on the
cold water inlet valve and hot water outlet valve and bleed all air
from the tank. When water flows 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.
If the inlet water pressure is less than 0.15MPa, a pump should
be installed at the water inlet.
To guarantee the safety usage of tank, a reducing valve should
be installed in the water inlet pipe, if the water pressure exceeds
0.65MPa.
Condensate may be leaked from unit if drainage pipe is blocked,
or unit operates in high humidity environment, a drainage pan is
recommanded as shown as following figure:
Fig.3-1
Water Outlet
User
water Inlet
anode
Drainpipe
T ap W ater
Ball V alve
One W ay V alve
Barrel-drain
ExpansionTank for pressure relief
(recommended)
PTR valve
Upper
Condensate Outlet
Lower
Condensate Outlet
Notice:
The tempering valve is
required on the hot water
usage terminal.
Fig.3-2
50mm larger than
the dia. of unit
Max.22mm
Heat Pump
Water Heater
anode
anode
7


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