Appendix A: TV-VVTZC-E2 Points/Properties
TruVu™ VVTZC
-E2
©2022 Carrier.
Installation and Start-up Guide
All rights reserved.
115
Point Name/Description
Default/Range
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.
D:
R:
Disable
Disable/Enable
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
SCR Electric
–
modulating control for SCR-type electric heater
Modulating Smart Valve
–
ducted or baseboard modulating hot water using a Smart
Valve
Combo Smart Valve
–
combination baseboard modulating hot water using a Smart
Valve and ducted staged electric heat
D:
R:
None
None
Modulating
Two Position
Staged EH
Combination
SCR Electric
Modulating Smart Valve
Combo Smart Valve
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.
D:
R:
Yes
No/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.
D:
R:
Two stages
One stage
Two stages
Three stages
Valve Type
–
The hot water valve's position with no power applied to the valve.
D:
R:
NC
NC/NO (normally
closed/normally open)
Hardwired Sensor
–
The type of sensor used on the controller's
IN-01
hardwire input.
This setting determines the control channel input function.
Options:
RH Sensor
–
Relative humidity for zone dehumidification
IAQ Sensor
–
Indoor air quality for DCV control
NOTE
RH and IAQ are also available with communicating ZS RH and CO
2
sensors.
D:
R:
None
None
RH Sensor
IAQ Sensor
RH Control
–
Enables or disables zone dehumidification control if valid RH sensor
values are available.
D:
R:
Disable
Disable/Enable
DCV Control
–
Enables or disables demand control ventilation control.
D:
R:
Disable
Disable/Enable
Min Setpoint Separation
–
Minimum separation that must be maintained between the
heating and cooling setpoints.
D:
R:
4 °F (2.2 °C)
2 to 10 °F
(1.1 to 5.5 °C)
Occ Override Normal Logic State
–
The normal state of the controller's
IN-04
Occupancy
input. If the input's contact is the same state as the configured state, the
controller follows its controlling schedule. If the contact is in the opposite state of the
configured state, the controller is forced into the unoccupied mode.
D:
R:
Open
Open/Closed
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