Appendix
Appendix 4
The way of assistant heat source connection
Appendix 3
The installation explanation of the leakage pressure valve.
Unit provides the connection of assistant heat source which can not be only for gas-fired
boiler,but also for electronic boiler or warm-net pipe for city accordingly.
The way to the connection is as follows:
1
water chiller and heat pump+assistant gas-fired boiler
1 The action pressure of leakage pressure valve 'is more than 3bar(valve is open)
but the pressure can not be adjusted.
2 The valve will open automatically to make sure that the water loop of air-con system
is safe when the water pressure in the backwater side is higher than the set pressure.
2
water chiller and heat pump+assistant electronic boiler
electronic boiler
inlet
cable
water chiller and heat pump
gas-fired boiler
inlet
outlet
Three-way valve
control wire
outlet
water chiller and heat pump
inlet
cable
outlet
inlet
outlet
outlet
inlet
3
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