Wiring inputs and outputs
TruVu™ VVTZC
-E2
©2022 Carrier.
Installation and Start-up Guide
All rights reserved.
67
The optional RH and/or CO2 values derate the EI value when they deviate from their setpoints.
•
If
RH Control
is set to
Enable
, the EI is derated when the RH value is less than the
EI Humidity Low Limit
or
when the RH value is greater than the
Occupied RH Control Setpoint
.
•
If
DCV Control
is set to
Enable
, the EI is derated by CO2 if the value exceeds the
DCV Max Ctrl Setpoint
.
If a zone is
Unoccupied
, the EI will calculate a value of 0%.
EI Time Satisfied
is the percentage of
Occupied
time which a zone maintains an EI value of 70% or higher.
Weighted EI
determines the priority of a zone in an EI roll-up, which must be completed using a different control
program. The value is determined by multiplying the real-time EI value by the
EI Weighting Factor
.
