Envision Peripherals Geothermal Indoor Split Heat Pumps User Manual download pdf (Page 11)

ENVISION SERIES INSTALLATION MANUAL

Solenoid Wiring

Water control valves draw their power directly from a unit’s 24V transformer and can overload and possibly burn out the

transformer. Check total VA draw of the water valve and ensure that it is under 15 VA.

Water Quality

In ground water situations where scaling could be heavy or where biological growth such as iron bacteria will be pres-

ent, a closed loop system is recommended. The heat exchanger coils in ground water systems may, over a period of time,

lose heat exchange capabilities due to a buildup of mineral deposits inside. These can be cleaned, but only by a qualied

service mechanic, as special solutions and pumping equipment are required. Desuperheater coils can likewise become

scaled and possibly plugged. In areas with extremely hard water, the owner should be informed that the heat exchanger

may require occasional ushing.

Open Loop - Well Water Systems (continued)

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Envision Peripherals Geothermal Indoor Split Heat Pumps User Manual Page 11