CBV-2U4-3T(-N) |
CBV-2U4-3T(-N) Control Sequences
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Subject to change without notice
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32
M
AN0
13
9
re
v
14
VAV COOLING ONLY SINGLE SPEED FAN
TEMPERATURE CONTROL
When the zone temperature is greater than, or equal to, the cooling temperature setpoint, the controller will
enter the cooling mode. The primary air flow rate will be varied between its
deadband setpoint, and its maximum Flowrate setpoint
(A211) as required to maintain
the zone at the cooling temperature setpoint.
When the zone temperature falls to the heating setpoint, the controller will enter the heating mode and the
primary air flow rate will be varied between its
(A212), or maximum heating Flowrate setpoint. Normally on a cooling only VAV-box both the
(A212) will be the same to maintain a minimum
rate of flow into the space while in the heating mode.
SERIES SINGLE SPEED FAN
The fan (DO 13) will operate continuously whenever the unit is in the occupied state, or in another state and
in the cooling or heating mode. The fan control matrix is as follows:
MODE
COOLING
DEADBAND
HEATING
Occupied
On
On
On
Unoccupied
On
Off
On
Warm-up
N/A
Off
On
Standby
On
Off
On
INPUT / OUTPUT POINTS
VAV Cooling Only 1 speed fan
IO POINTS
DESCRIPTION
UI-01
Zone Temperature (with optional override button)
UI-02
Setpoint Adjustment (optional 5K slider)
UI-03
Discharge Temperature (optional)
UI-04
CO
2
, Humidity, or occupancy signal (all optional)
UI-08
Flowrate Sensor
DO-09
Damper Control (
CBV-2U4-3T-N
only)
DO-10
Damper Control (
CBV-2U4-3T-N
only)
DO-11
DO-12
DO-13
Series Fan
AO-14
AO-15
AO-16
Damper Control
(
CBV-2U4-3T
only)
Содержание CBV-2U4-3T
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