Appendix A: TV-VVTZC-E2 Points/Properties
TruVu™ VVTZC
-E2
©2022 Carrier.
Installation and Start-up Guide
All rights reserved.
126
Point Name/Description
Default/Range
Inhibit Heating Call from this zone?
- If
Yes
, the VVT Master ignores this controller as a
heating caller.
D:
R:
No
No/Yes
Active Heating Caller?
–
Displays if this zone is currently an active heat caller for the
system.
D:
R:
Yes
No/Yes
Inhibit Cooling Call from this zone?
- If
Yes
, the VVT Master ignores this controller as a
cooling caller.
D:
R:
No
No/Yes
Active Cooling Caller?
–
Displays if this zone is currently an active cooling caller for the
system.
D:
R:
Yes
No/Yes
Linkage Callers
–
The minimum number of zones required to make the air source go
into heating or cooling mode. 1 is typical for systems with 8 zones or less. For larger
systems, increase the number by 1 for each 6 zones. For example, 3 linkage callers for
a 20 zone system.
D:
R:
1
1 to 32
System Mode Reselect Timer (minutes)
–
Applies only to a VVT master. Defines how
long the system continues to operate in the current mode before it reassesses all zones
while the current demand is still active.
D:
R:
30
10 to 120
Linkage RH Type
–
Determines if the VVT or VAV Master sends to the air source the
average or maximum values of all linked zone controllers that have a relative humidity
(RH) sensor.
D:
R:
Avg
Avg/Max
Linkage IAQ Type
–
Determines if the Master controller sends to the air source the
average or maximum values of all linked zone controllers that have a CO
2
sensor for
DCV and IAQ control.
D:
R:
Max
Avg/Max
Air Source Mode
–
If
Airside Linkage Status
is
Active
, this is the current mode of the
linked air source. If
Airside Linkage Status
is
Not Active
, this is the mode of the air
source as determined by the zone controller’s SAT sensor.
R: Off
Warmup
Heat
Cool
Freecool
Pressure
Evac
Vent
Air Source Supply Air Temp
–
Displays the air source's SAT when
Airside Linkage
Status
is
Active
.
R: -56 to 245°F
(-48.9 to 118.3°C)
Air Source Static Pressure
–
Displays the air source’s supply static pressure when
Airside Linkage Status
is
Active
.
R: 0 to 5.0 in wc
(0 to 1.245 kPa)
Air Source Outdoor Air Temp
–
Displays the air source’s OAT when
Airside Linkage
Status
is
Active
.
R: -56 to 245°F
(-48.9 to 118.3°C)