Carrier TruVu VAVB3-E2 Installation And Startup Manual page 127

Point Name/Description
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.
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
CV Modulating – constant volume modulating reheat used for single duct terminal
application with modulating hot water reheat (typically used in hospital applications)
SCR Electric – modulating control for SCR-type electric heater
Modulating Smart Valve – ducted or baseboard modulating hot water using a Smart
Valve
Combination Smart Valve – combination baseboard modulating hot water using a
Smart Valve 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 for ducted heat.
VAV Reheat – If set to Enable and Heat Type is Modulating, a need for heat first
modulates the supply air temperature up to the configured Maximum Heating SAT
(90ºF [32.2°C] default). A further heating demand will increase the airflow from the
minimum rate up to the configured Auxiliary Heat Min Airflow. Applicable to single duct
terminals only.
CV Modulating PID – This BACnet object calculates the amount of capacity required to
satisfy the current space temperature setpoint, when the terminal is heating and the
Heat Type is set to CV Modulating.
CAUTION The default values should be changed only by a technician trained in PID
Loop algorithms.
VAV Heating – Set to Enable to have the terminal modulate its airflow to meet a zone
heating demand when the air source mode is Heating or Warm-up. Always set to
Disable for parallel fan terminals.
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 – The hot water valve's position with no power applied to the valve.
TruVu™ VAVB3-E2
Installation and Start-up Guide
Appendix A: TV-VAVB3-E2 Points/Properties
121
Default/Range
D: Disable
R: Disable/Enable
D: None
R: None
Modulating
Two Position
Staged EH
Combination
CV Modulating
SCR Electric
Modulating Smart Valve
Combination Smart Valve
D: Yes
R: No/Yes
D: Enable
R: Disable/Enable
D: Type = reverse
Update Interval = 0:15
P = 20 (36 metric)
I = 1.0 (1.8 metric)
D = 0
Bias = 0
Deadband = 0
D: Disable
R: Disable/Enable
D: Two stages
R: One stage
Two stages
Three stages
D: NC
R: NC/NO (normally
closed/normally open)
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