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6.2 Main Parts of Water Module
①
Electric Heating Temperature Switch in Water
Module
With built-in electric heating temperature switch,
water module heater is turned off at too high
temperature, avoiding burnout. If burnout
occurs, the unit stops. After temperature
reduces, temperature switch will automatically
restore.
② Safety V alve
Ensure hydraulic pressure not too high in water
cycle when water system pressure is below 3
bar. If the hydraulic pressure is too high, drain
some water. Lead drainage pipe of safety valve
to building downcomer.
③ Automatic V ent V alve
Remove residual air in water system through
automatic vent valve.
④
Electrical Heater in Water Module
Supply extra energy to the unit when the heat
pump lacks capacity.
⑤
⑥
⑦
Plate Heat Exchanger
Refrigerant and water performs heat exchange
in plate heat exchanger.
Electrical
Box
Wired
Controller
User can set up and operate water module
through wired controller.
⑧
Electronic Expansion V alve
Restricting element in heat pump system.
⑨ Pressure G age
Read pressure in water circulating system.
⑩
Filter
Prevent impurities in filter system from flowing
into plate heat exchanger and blocking heat
transport channel. Regularly remove and
clean filter net.
Water Flow Switch
Water flow channel disconnects and the unit
stops when water flow is too low.
Expansion Tank
Absorb volume change caused by
temperature changes in water circulating
system.
Water Pump
Feed power to water circulating system.
Low Water Temperature Switch
It trips and the unit stops when pressure in
water circulating system is too low.
Temperature Fuse in Water Module Heater
Temperature fuse disconnects and electrical
heater cuts off at too high temperature. It can
not automatically restore.
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