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Parallel Fan ON Value – If Terminal Type is Parallel Fan and the zone does not require
heating, when the zone's airflow control setpoint decreases below this value, the
parallel fan turns on to increase airflow, ventilation, and prevent cold air dumping into
the zone. If the airflow control setpoint rises above this value by more than 1 cfm, the
parallel fan turns off. We recommend this value be set to approximately 10% above the
Occupied Min Airflow
setpoint. Set to 0 to disable this function.
Service Configuration properties
Navigation:
i-Vu / Field Assistant:
BACview:
Point Name/Description
Terminal Type
– The type of zone terminal that the controller is installed on.
– Used by the VVT Master to calculate the weighted average
Damper Size (in.)
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
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
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.
VVT Zone Controller
Properties
HOME
CONFIG
>
– Enable if the controller's analog output is used for an
for ducted heat.
Equipment
Configuration
>
>
SERVICE
>
D:
0 cfm
R:
0 to 99999 cfm
Service Configuration
>
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:
Enable/Disable
D:
None
R:
None
Modulating
Two Position
Staged EH
Combination
D:
Yes
R:
Yes/No
.
D:
Two stages
R:
One stage
Two stages
Three stages
D:
NC
R:
NC/NO (normally
closed/normally open)
33
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