Pressure Independent VAV Applications with CSP-4702
25
CTE-5202 Applications Guide, AN0912A Rev. D
Cooling with 3-Stage Reheat and Night Setback/Setup
This configuration is the same as on the previous
page except for the addition of an SPST relay or
switch.
See
Cooling and 3-Stage Reheat on page
.
The switch or relay is driven by a night/
unoccupied
setback/setup signal from other equipment not
shown. When the contact is closed (e.g., by a timer),
setback/setup mode initiates, changing the setpoint
by the offset selected in
ADVANCE
>
SETBACK
menu. See
Change Configuration on page 6
and
Unoccupied/Standby Setback on page 5
.
NOTE: The night/unoccupied setback offset does
not apply to morning warm-up.
NOTE: This configuration requires the system fan
to be on during setback/setup mode.
NOTE: Triac outputs on the REE-5001 are for 24
VAC loads only. The phase side of the
transformer connects to the “common” side
of the load (contactors).
NOTE: See also the
Select Sequence 2,
with or without
Auxiliary Flow
~
T
T
AI1
AO
1
AO
2
CTE-5202
Thermostat
~
–
(Phase)
(Neutral)
(To Flow Sensor)
REE-5001 Relay Module
~
–
24 V
AC
3
2
1
Stages
3-Stage Reheat
T
24 VAC Contactors
(10 VA Max. per Stage)
2
1
3
Load
SPST
Relay
CSP-4702
Controller-Actuator
24 VAC @ 35 VA