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Viconics VZ7656H Wireless Installation Guide User Manual

Page 27

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27 | VZ7656R & VZ7656H-Installation Guide








Comp/aux

Compressor/auxiliary

interlock

Default value = Off

Sets the operation and interaction mode of the heat pump with

the auxiliary heat.

Interlock Off. In Heating mode.

If the heat pump is not able to satisfy the heating setpoint, the

auxiliary heat will be energized at the same time as the heat

pump stage. Typically applies when the air handler heat pump

coil is installed before the auxiliary heat. ( all electric systems )

Interlock On. In Heating mode.

If the heat pump is not able to satisfy the heating setpoint, the

auxiliary heat will be energized and the heat pump will be cut

off. Typically applies when the air handler heat pump coil is

installed after the auxiliary heat. ( add on systems ) There is a 2

minute delay to restart the heat pump, when the auxiliary heat

is shut down.

This manual is related to the following products: