Pressure Independent VAV Applications with CSP-5001/5002
42
CTE-5202 Applications Guide, AN0912A Rev. D
Dual Duct, Minimum Air from Cold Duct
Dual duct applications can use two CSP-5001s with
a CTE-5202. In this application, the CSP-5001s are
mounted separately on the cold and hot air duct
dampers with each using its own flow sensor.
The cold-deck controller receives the AO1 signal
from the thermostat while the hot-deck controller
receives its requested flow signal from AO2. Both
CSP-5001s can be set independently for minimum
and maximum flow settings.
~
T
T
AI1
AO
1
AO
2
CTE-5202
Thermostat
CSP-5001
Controller-Actuator
H
~
16
V
DC
I
N
O
U
T
–
–
L
24 VAC
(To Flow Sensor)
24 VAC @ 8 VA
~
–
(Phase)
(Neutral)
CSP-5001
Controller-Actuator
H
~
16
V
DC
I
N
O
U
T
–
–
L
24 VAC
(To Flow Sensor)
Cold Deck
Hot Deck
Select Sequence
3
(from the CTE-5202
SYSTEM
Change Configuration on page 6
(See also the Dual Duct, Minimum Air from Cold
Duct section with a
CTE-5103 in the
Select
Sequence
3
AO2 MAX
AO2 MIN
AO2 (RA)
AO1 (DA)
AO1 MIN
AO1 MAX
Cooling
Setpoint
Heating
Setpoint
Temp.
Increasing
2° F
2° F