1083293-UIM-D-1116
16
Johnson Controls Unitary Products
FIGURE 21:
Thermostat Chart - Single Stage Heat Pump – Variable Speed or PSC Modulating Furnace
C
24 – Volt Common
R
24 – Volt Hot
Y1
First Stage Compressor
O
Reversing Valve
Energized in Cool
L
Malfunction Light
G
Fan
*DP32H70124
THERMOSTAT
W1
Second Stage Aux. Heat
E
Emergency Heat
W2
Third Stage Heat
N/A
*BP21H50124
*BN21H00124
*DP21H40124
*DN21H00124
THERMOSTAT
N/A
*DN22U00124
THERMOSTAT
O
Reversing Valve
Energized in Cool
C
24 – Volt Common
R
24 – Volt Hot
W1/66(out)
Heat
Y
Compressor
DEMAND DEFROST
CONTROL
X/L
Malfunction Light
W
Auxiliary Heat
SINGLE STAGE
HEAT PUMP
Y2
Second Stage Compressor
Step 9 of Thermostat
Installer / Configuration
Menu must be set to
Pump OFF
Step 1 of Thermostat
Installer / Configuration
Menu must be set to
Heat Pump 1
E*B*
E*ZD
E*R*
OD MODELS
*HGD
HP*
*RHS
C
24 – Volt Common
R
24 – Volt Hot
Y1
Single
Stage Compressor
MODULATING
FURNACE CONTROL
G
Fan
MODULATING
FURNACE
Y/Y2
Second or Full
Stage Compressor
DHUM
Dehumidification-
Open on Humidity Rise
W
Modulating Heat
Move HUMIDISTAT
jumper to “YES”
if humidistat is to be used.
ID MODELS
LO COMP
Single Stage
Compressor (OUT)
O
Reversing Valve
Energized in Cool
HI COMP
Second Stage
Compressor (OUT)
External Humidistat
(Optional)
Open on Humidity Rise
TM9M
