KMC Controls CTE-5202 - Chilled Beam 2-Pipe Heating and Cooling with Changeover

Single-Zone Heating and Cooling Applications 15 CTE-5202 Applications Guide, AN0912A Rev. D
Chilled Beam 2-Pipe Heating and Cooling with Changeover
~
T T
AI1
AO1 AO2
CTE-5202
Thermostat
24 VAC
~
–
(Phase)
(Neutral)
24 VAC
Common
Input
Valve
STE-1454/1455 Strap-On Sensor on Supply Pipe
Select Sequence 1
2° F
2° F
2° F
COLD SEQUENCE
AO1 (DA)
Setpoint
AO1 MIN
HOT SEQUENCE
AO1 (RA)
AO1 MAX
AO1 MAX
AO1 MIN
Temp. Increasing
Setpoint
An STE-1454/1455 strap-on (Type III) temperature
sensor provides the CTE-5202 an automatic change-
over for heating/cooling applications using hot and
chilled water. The sensor will switch the thermostat
between cooling and heating modes based on
the temperature of the water in the pipe. A water
temperature higher than changeover temperature,
switches control to heating mode, and a temperature
lower than changeover temperature, switches con-
trol to cooling mode.
Select Sequence 1 from the CTE-5202 SYSTEM
menu. Change the default changeover temperature
to the maximum of 85° in the CTE-5202 ADVANCE
menu. See Change Conguration on page 6 and Hot/
Cold Changeover on page 5.