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Appendix A: VVT Zone Controller Points/Properties
Service Configuration
Navigation:
i-Vu / Field Assistant:
BACview:
Point Name/Description
Terminal Type – The type of zone terminal that the controller is installed on.
Damper Size (in.) – Used by the VVT Master to calculate the weighted average demand. If
the zone damper is round, enter its diameter. If rectangular, enter 0.
Damper Area (sq.in.) – Used by the VVT Master to calculate the weighted average
demand. If the damper is rectangular, enter its area (width x height). If the damper is
round, enter 0.
External Actuator Enable – Enable if the controller's analog output is used for an external
high-torque or slave actuator. Enabling this setting disables the output for Modulating Hot
Water or Combination reheat functions.
Heat Type – The type of supplemental reheat that the zone controller will control. The heat
may be used with system heat, depending on the space temperature demand.
Options:
None – no heat
Modulating – ducted or baseboard modulating hot water
Two Position – two position hot water
Staged EH – ducted or baseboard electric heat
Combination – combination baseboard modulating hot water and ducted staged electric
heat
Ducted Heat – Determines whether the zone is using ducted heat or baseboard. If Heat
Type is Combination, set this field to Yes for ducted heat.
Number of Heat Stages – The number heat stages when the Heat Type is Staged EH. Fan
powered terminals are limited to no more than 2 stages.
Valve Type – Two Position hot water only - The hot water valve's position with no power
applied to the valve.
Optional Sensor Type – The type of sensor used on the controller's RH/CO2 input. This
setting determines the optional control functionality.
Options:
RH Sensor – Relative humidity for zone dehumidification
IAQ Sensor – Indoor air quality to DCV control
– Zone dehumidification control.
RH Control
DCV Control – Demand control ventilation control.
60
Properties
Equipment
Configuration
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CONFIG
SERVICE
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Service Configuration
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Default/Range
D:
Single Duct
R:
Single Duct
Parallel
Series Fan
D:
6.00 in.
R:
0 to 100.00 in
D:
0 sq.in.
R:
0 to 9999 sq.in.
D:
Disable
R:
Disable/Enable
D:
None
R:
None
Modulating
Two Position
Staged EH
Combination
D:
Yes
R:
No/Yes
D:
Two stages
R:
One stage
Two stages
Three stages
D:
NC
R:
NC/NO (normally
closed/normally open)
D:
None
R:
None
RH Sensor
IAQ Sensor
D:
Disable
R:
Disable/Enable
D:
Disable
R:
Disable/Enable
VVT Zone Controller
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