York YZH User Manual

835966-UIM-E-0814
Johnson Controls Unitary Products 13
FIGURE 13: Thermostat Wiring – Single Stage Heat Pump (with YGVI control) – PSC Air Handler
Single Stage Heat Pump (with YGVI control) - PSC Air Handler
ID MODELS
A009-001
AHR
MA
Change FFuel” jumper
on the heat pump control
to “OFF”
“
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
Jumper 3 must be
set to “ELEC”
Jumper 2 must be
set to “O”
Jumper 1 must be
set to “HEAT PUMP”
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
HUM OUT
(24 VAC out)
Humidifier
EAC
(24 VAC out)
Electronic Air Cleaner
HUM
Humidity Switch
Open on Humidity Rise
X/L
Malfunction Light
O
Reversing Valve
Energized In Cool
Y1
First Stage Compressor
W2
Second Stage Heat
W1
First Stage Heat
G
FAN
R
24 - Volt Hot
Y/Y2
Second or Full
Stage Compressor
COM
24 - Volt Common
C
24 - Volt Common
Y1
First Stage Compressor
R
24 - Volt Hot
G
FAN
W2
Second Stage Heat
W1/O/B
First Stage Heat
External Humidistat
(Optional)
Open on Humidity Rise
THERMOSTAT
S1-THSU21P1b
PSC
AIR HANDLER
SINGLE STAGE
HEAT PUMP
PSC
AIR HANDLER
CONTROL
YORKGUARD VI
CONTROL
24VAC Humidifier Relay
(Optional)
24VAC Electronic
Air Cleaner Relay
(Optional)

York YZH Specifications

General

Brand	York
Model	YZH
Category	Heat Pump
Language	English