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Viconics VZ7656H Wireless Installation Guide User Manual

Page 26

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26 | VZ7656R & VZ7656H-Installation Guide

Pressure

Static Pressure setpoint

Default:

0.8”WC

Bypass damper will maintain this supply static pressure set
point.

Please refer to the Viconics Zoning System Guide for

recommended settings.

0 to 2 in WC (0 Pa to 500 Pa)
(increments: 0.1” WC or 25 Pa)

SP Cntrl

Static Pressure Control
Type

Default: BPD

Depending on the setting of this parameter, the 0-10VDC

pressure control output (labled BPD) will either have a 0VDC or

10VDC output when the fan is Off.

BPD (By-Pass Damper): 10VDC when fan is Off

FD (Variable Frequency Drive): 0VDC when fan is Off

Parameters Specific to the VZ7656H1000B Heat Pump Model

High BP

High balance point

Default value = 90 °F (

32.0 °C )

Function will only be
enabled if OS (outside air
temperature sensor) is
connected.

In Heating or Auto mode, it is the outside air temperature value

at which the auxiliary heat will be cut off. Above that value, only

the heat pump will be used to maintain the heating setpoint

34 to 90 °F ( 1.0 to 32.0 °C )

Low BP

Low balance point

Default value = -40 °F ( -

40 °C )

Function will only be
enabled if OS (outside air
temperature sensor) is
connected.

In Heating, Cooling or Auto mode, it is the outside air

temperature value at which the heat pump operation will be cut

off. Below that value, only the auxiliary heat will be used to

maintain the heating setpoint

-40 to 30 °F ( -40 to -1.0 °C )

Re valve

Reversing valve operation

O/B

Default value = O

Heat pump reversing valve operation

O will energize the valve in cooling operation.

B will energize the valve in heating operation.

This manual is related to the following products: