538605-UIM-B-1009
6
Johnson Controls Unitary Products
For additional connection diagrams for all UPG equipment refer to “Low Voltage System Wiring” document available online at www.upgnet.com in the
Product Catalog Section.
FIGURE 6:
Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Air Handler
HP 27A
Two Stage Heat Pump – Variable Speed Air Handler (With Hot Heat Pump Operation)
O
Reversing Valve
Energized in Cool
C
24 – Volt Common
R
24 – Volt Hot
W1 OUT
First Stage Heat
W2 OUT
Second Stage Heat
Y2 OUT
Second Stage Compressor
Y1
Single Stage Compressor
X/L
Malfunction Light
Y2
Second Stage Compressor
W
Auxiliary Heat
BS
Bonnet Sensor
BSG
Bonnet Sensor
TWO STAGE
HEAT PUMP
C
24 – Volt Common
Y1
First Stage Compressor
L
Malfunction Light
Y2
Second Stage Compressor
G
Fan
*PP32U71124
*PP32U72124
THERMOSTAT
R
24 – Volt Hot
E/W1
First Stage Aux. Heat
W2
Second Stage Aux. Heat
DHM
Dehumidistat
HM
Humidistat
Step 1 of the Thermostat
Installer Table must be
set to Heat Pump
O
Reversing Valve
Energized in Cool
1
24VAC Humidifier
(Optional)
Part Numbers:
SAP =
Legacy
159481 = 031-09157
2
COM
24 – Volt Common
R
24 – Volt Hot
W1
First Stage Aux. Heat
W2
Second Stage Aux. Heat
Y1
Single Stage Compressor
Y/Y2
Second or Full
Stage Compressor
O
Reversing Valve
Energized in Cool
X/L
Malfunction Light
HUM
Humidity Switch
Open on Humidity Rise
VARIABLE SPEED
AIR HANDLER CONTROL
G
Fan
Move the MODE
jumper to “HP”
Move the HUM STAT
jumper to “YES”
if humidistat is to be used.
VARIABLE SPEED
AIR HANDLER
2
Part Numbers:
SAP =
Legacy
126768 = 031-09137
18395 = 031-01996
340512 = 031-09178
1
AV
ID MODELS
SV
MV
YZE
OD MODELS
YZH
H*5
H*8
YORKGUARD VI
CONTROL
24VAC
Electronic Air Cleaner
(Optional)
E2/P Switch must be in the
E2 position
Step 2 of the Thermostat
Installer Table must be
set to 2
Step 5 of Thermostat User
Configuration Menu must
be set to “ON” for
Dehumidification
EAC (24VAC out)
Electronic Air Cleaner
Refer to AH documentation
for W1 and W2 electric
heat staging options.
HUM OUT
(24VAC out)
Second stage auxiliary
heat will be controlled by
the thermostat, not the
heat pump control when
wired as shown.
Change Hot Heat Pump
jumper on the heat pump
control to “ON”
THJF060
YHJF060
CHJF060
LHJF060
GHJF060
