Product Overview

3
Sequences
Hot/Cold Changeover
For hot/cold changeover on Sequence 1 or 2, connect
a changeover sensor to the AI1 input. The sensor
should be a Type III thermistor (10K ohm @ 77° F),
such as KMC STE-140x duct or STE-1454/1455 strap-
on sensors. (An internal 10K ohm pullup resistor is
provided on AI1.)
Leave sensor o for continuous cold air mode.
Unoccupied/Standby Setback
Contact closure across AI1 and Common initiates the
unoccupied/standby setback sequence, which causes
the cooling setpoint to increase and the heating set-
point (where applicable) to decrease by the amount
of the (selectable) setback oset. In Sequence 2 or 3,
it would shift both the cooling setpoint and the heat-
ing setpoint. (This setback does not apply during the
morning warm-up sequence.)
NOTE: AO1 is typically used to control the cooling
output (primary air damper or cooling
valve), and AO2 is used to control the
heating output (VAV reheat or heating
valve).
2° F
2° F
2° F
AO2 Disabled
(12 Volts)
SEQUENCE 1: Single Duct Cooling, Fan Box (with REE-5002 or REE-5017)
COLD AIR SEQUENCE
12 Volts
AO2 (DA)
0-12 Volts
AO1 (DA)
Setpoint
AO1 MIN
HOT AIR SEQUENCE (Morning Warm Up)
AO1 (RA)
AO1 MAX
AO1 MAX
AO1 MIN
Temp. Increasing
6 Volts
Setpoint
2° F
Of Loop
10%
2° F
2° F
AO1 MIN
AO1 MAX
AO1 MAX
AO1 (RA)
HOT AIR SEQUENCE (Morning Warm Up)
AUX
AO1 MIN
COLD AIR SEQUENCE
AO1 (DA)
AO2 (RA)
0 Volts
12 Volts
SEQUENCE 2:
Single Duct Cooling with Reheat and Auxiliary Flow
AO2 Disabled
(0 Volts)
Temp. Increasing
Cooling
Setpoint
Heating
Setpoint
Heating
Setpoint
SEQUENCE 3:
Independent Heating and Cooling Control
(Dual Duct VAV, Baseboard, Single Zone AHU)
AO2 MAX
AO2 MIN
AO2 (RA)
AO1 (DA)
AO1 MIN
AO1 MAX
Cooling
Setpoint
Heating
Setpoint
Temp.
Increasing
2° F 2° F