Cooling With Heating Changeover And Hot Water Reheat - KMC Controls CTE-5202 Application Manual

Cooling with Heating Changeover and Hot Water Reheat

See Cooling with Heating Changeover and Electric
Reheat on page 27. This application operates the
same except for using a hot water valve instead of
electric heating elements for reheat (a VEB-43/46
series valve in place of the REE-5001 relay).
CSP-4702
Controller-Actuator
(To Flow Sensor)
24 VAC @ 10 VA
(Phase) ~
(Neutral) –
COLD AIR SEQUENCE
12 Volts
AUX
10%
Of Loop
2° F
Heating
Setpoint
Pressure Independent VAV Applications with CSP-4702
STE-140x Duct
Temp. Sensor
(Hot Water Reheat)
AO2 (RA)
AO1 (DA)
2° F
Cooling
Setpoint
When there is hot air in the duct, changeover initi-
ates, allowing the heating signal from AO1 to control
airflow and AO2 to control the valve. When there
is a call for heat, the thermostat modulates the hot
water valve.
MEP-4002
Actuator on
VEB-43/46
Series
Valve
HOT AIR SEQUENCE (Morning Warm Up)
0 Volts
AO1 MAX AO1 MAX
AO1 MIN
Temp. Increasing
28
CTE-5202
Thermostat
Select
Sequence 2
AO2 Disabled
(0 Volts)
AO1 (RA)
2° F
Heating
Setpoint
CTE-5202 Applications Guide, AN0912A Rev. D
AO1 MIN