1083294-UIM-C-0615
18
Johnson Controls Unitary Products
FIGURE 24:
Thermostat Chart - Two Stage HP with Two Stage Variable Speed Furnace (Hot Heat Pump or Conventional)
HP 24A
Two
Stage Heat Pump – Two Stage Variable Speed Furnace (Hot Heat Pump or Conventional)
TWO STAGE
HEAT PUMP
C
24 – Volt Common
R
24 – Volt Hot
Y1
Single Stage
Compressor
Y2
Second Stage
Compressor
C
24 – Volt Common
Y1
First Stage Compressor
L
Malfunction Light
Y2
Second Stage
Compressor
G
Fan
*PP32U71124
*PP32U72124
THERMOSTAT
R
24 – Volt Hot
W2
Second Stage
Aux. Heat
DHM
Dehumidification
HM
Humidistat
Step 2 of Thermostat User
Installer Table must be
set to 2
E/W1
First Stage Aux. Heat
24VAC Humidifer Relay
(Optional)
C
24 – Volt Common
R
24 – Volt Hot
Y1
Single Stage
Compressor
TWO STAGE
VARIABLE SPEED
FURNACE CONTROL
G
Fan
TWO STAGE
VARIABLE SPEED
FURNACE
W/W1
First Stage Heat
Y/Y2
Second or Full
Stage Compressor
W2
Second Stage Heat
O
Reversing Valve
X/L
Malfunction Light
DHUM
Dehumidification
Move DHUM
jumper to “YES”
if humidistat is to be used.
(G/L)*(8/9)V
(F/L)*(8/9)V
PV(8/9)
ID MODELS
E2/P Switch must be in the
E2 position
TM(8/9)V
H*5
YZH
YZE
OD MODELS
H*8
YORKGUARD VI
CONTROL
YORKGUARD VI
CONTROL
O
Reversing Valve
Energizing in Cool
Step 1 of Thermostat User
Installer Table must be
set to Heat Pump
jumper to “YES”
Move HEAT PUMP
Change Hot Heat Pump
jumper on the heat pump
control to “ON” if Hot Heat
Pump Operation is desired.
Change F Fuel jumper
on the heat pump
control to “ON”
Bonnet Sensor
BS
(Optional)
Bonnet Sensor Kit
BSG
Bonnet Sensor
Auxiliary Heat
W
Malfunction Light
X/L
Energized in Cool
Reversing Valve
O
Y2 OUT
Second Stage
Compressor
W2 OUT
Second Stage Heat
W1 OUT
First Stage Heat