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Never connect unclean pipe to the unit!
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If the unit is to idle for a long time, the water in the water system shall be drained to prevent the plate heat
exchanger being iced.
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If the unit is to idle for a short time, the power-off is not allowed, because the unit has automatic anti-freezing
function. When the temperature in the outlet pipe is very low, the unit will automatically operate for a period to
maintain the temperature of the water system and prevent the water pipe from being frozen, so the unit must be
energized in winter. If the unit is not used in winter, drain the water from the water system or fill such
anti-freezing mixture as ethylene glycol and glycerol into the water system.
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The water filter must be installed correctly; otherwise, the unit may be damaged. Additionally, the water filter
shall be regularly inspected for any blockage due to dirt.
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Schematic diagram of water system
Symbol
Description
Check valve
A utomatic exhaust valve
Water filter
S top va lve
Thermometer
P ressure gauge
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Multi-unit module combined water system installation schematic
WARNING
Symbol
Description
Wate r pump
Flexible co nnection
E xpansion tank
Electronic water processor
3 -way valve
2 -way valve
Heater
17
an co il
Fan co il
Fan co il
Fan co il
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