Thermostat Wiring - Two-Stage Heat Pump - Variable Speed Air Handler - York YZF Installation Manual

HP 27A
THERMOSTAT
S1-THSU32HP7b
C
24 – Volt Common
Y1
First Stage Compressor
R
24 – Volt Hot
G
Fan
Fault
W3
Third Stage Heat
Y2 Y2
Second Stage Compressor
Second Stage Compressor
W2
Second Stage Heat
W1/O/B
First Stage Heat
HUM
DHUM
Jumper 1 must be set
to "HEATPUMP"
Jumper 2 must be set
to "O"
Setup Step 50 "Dual
Fuel" must be set
"External"
FIGURE 17: Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Air Handler
Johnson Controls Unitary Products
Two Stage Heat Pump – Variable Speed Air Handler (With Hot Heat Pump Operation)
24VAC Humidifier Relay
(Optional)
24VAC Electronic
Air Cleaner Relay
(Optional)
ID MODELS
AHV
MV
VARIABLE SPEED
AIR HANDLER
VARIABLE SPEED
AIR HANDLER CONTROL
COM
24 – Volt Common
Y1
Single Stage Compressor
R
24 – Volt Hot
G
Fan
W1
First Stage Aux. Heat
W2
Second Stage Aux. Heat
Y/Y2
Second or Full
Stage Compressor
O
Reversing Valve
Energized in Cool
X/L
Malfunction Light
HUM
Dehumidification-
Open on Humidity Rise
HUM OUT
(24 VAC out)
EAC(24 VAC out)
Electronic Air Cleaner
Move the MODE
jumper to "HP"
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.
835966-UIM-E-0814
OD MODELS
YZH
YZF060
H*8B
H*6B60
TWO STAGE
HEAT PUMP
YORKGUARD VI
CONTROL
C
24 – Volt Common
Y1
Single Stage Compressor
R
24 – Volt Hot
W1 OUT
First Stage Heat
W2 OUT
Second Stage Heat
Y2 OUT
Second Stage Compressor
O
Reversing Valve
Energized in Cool
X/L
Malfunction Light
Y2
Second Stage Compressor
W
Auxiliary Heat
BSG
Bonnet Sensor
BS
Bonnet Sensor
Change Hot Heat Pump
jumper on the heat pump
control to "ON"
A013-001
17