Carrier VVT Zone - Service Configuration Properties

VVT Zone Controller 33
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
D:
setpoint. Set to 0 to disable this function.
R:
0 cfm
0 to 99999 cfm
Service Configuration properties
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Point Name/Description
Default/Range
Terminal Type
D: – The type of zone terminal that the controller is installed on.
R:
Single Duct
Single Duct
Parallel
Series Fan
Damper Size (in.)
D: – Used by the VVT Master to calculate the weighted average
demand. If the zone damper is round, enter its diameter. If rectangular, enter 0.
R:
6.00 in.
0 to 100.00 in
Damper Area (sq.in.)
D: – 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.
R:
0 sq.in.
0 to 9999 sq.in.
External Actuator Enable
D: – 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.
R:
Disable
Enable/Disable
Heat Type
Options:
– 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.
None
– no heat
Modulating
– ducted or baseboard modulating hot water
Two Position
– two position hot water
Staged EH
– ducted or baseboard electric heat
Combination
D:
– combination baseboard modulating hot water and ducted staged
electric heat
R:
None
None
Modulating
Two Position
Staged EH
Combination
Ducted Heat
– Determines whether the zone is using ducted heat or baseboard. If
Heat Type
is
Combination
, set this field to
Yes
D:
for ducted heat.
R:
Yes
Yes/No
Number of Heat Stages
– The number heat stages when the
Heat Type
is
Staged EH
D: .
Fan powered terminals are limited to no more than 2 stages.
R:
Two stages
One stage
Two stages
Three stages
Valve Type
D: – Two Position hot water only - The hot water valve's position with no
power applied to the valve.
R:
NC
NC/NO (normally
closed/normally open)