835966-UIM-E-0814
12
Johnson Controls Unitary Products
FIGURE 12:
Thermostat Wiring –
Single Stage Heat Pump (with YGVI control)
– V/S Air Handler
Single Stage Heat Pump (with YGVI control) - V/S Air Handler
ID MODELS
MV
Change “FFuel” jumper
on the heat pump control
to “OFF”
BS
Bonnet Sensor
BSG
Bonnet Sensor
W
Auxiliary Heat
Y2
Second Stage
Compressor
X/L
Malfunction Light
O
Reversing Valve
Energized In Cool
Y2 OUT
Second Stage
Compressor
W2 OUT
Second Stage Heat
W1 OUT
First Stage Heat
R
24 - Volt Hot
Y1
Single Stage
Compressor
C
24 - Volt Common
COM
24 - Volt Common
Y/Y2
Second or Full
Stage Compressor
R
24 - Volt Hot
G
FAN
W1
First Stage Heat
W2
Second Stage Heat
Y1
First Stage Compressor
O
Reversing Valve
Energized In Cool
X/L
Malfunction Light
HUM
Humidity Switch
Open on Humidity Rise
EAC
(24 VAC out)
Electronic Air Cleaner
HUM OUT
(24 VAC out)
Humidifier
Move the HUM STAT
jumper to “YES”
if humidistat is to be
used.
Refer to AH
documentation
for W1 and W2 electric
heat staging options
C
24 - Volt Common
Y1
First Stage Compressor
R
24 - Volt Hot
G
FAN
Fault
W3
Third Stage Heat
Y2
Second Stage
Compressor
W2
Second Stage Heat
W1/O/B
First Stage Heat
HUM
(only on S1-
THSU32HP7b)
DHUM
(only on S1-
THSU32HP7b)
Jumper 2 must be
set to “O”
Jumper 3 must be
set to “ELEC”
Setup Step 24 “Number
Of Compressor Stages”
must be set “1”
Jumper 1 must be
set to “HEAT PUMP”
24VAC Electronic
Air Cleaner Relay
(Optional)
24VAC Humidifier Relay
(Optional)
A008-001
AHV