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Connection to the Heating system
The selection of circulation pumps, valves, safety elements and pipes has to be performed by the
design engineer according to the heating/cooling capacity of the device and minimum water flow
rate.
CAUTION
!
• Before connecting the device, it is necessary to rinse the pipe system thoroughly and
remove impurities. Use suitable detergents if necessary.
• Thorough venting of the system has to be ensured. Otherwise, malfunctions in operation
may occur.
Water Piping
Assemble ball valves (field supply) before connecting the Inlet ① and Outlet ② pipes.
Use a counter wrench to tighten the connections firmly.
No.
①
Heating/Cooling circuit inlet pipe (female G1")
②
Heating/Cooling circuit outlet pipe (female G1")
NOTE
Before connect heating water pipes, use the provided gaskets(G1") for each water pipe.
* There are 3 gaskets between pipes and caps, which is in Heating circuit outlet pipe, Domestic
cold water inlet pipe and DHW Re-Circulation pipe. 2 gaskets are enclosed inside the product
box.
Connections
PIPING AND WIRING FOR INDOOR UNIT
B
A
Recommended tightening
torque [N . m]
71
42 ± 2
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