Johnson Controls York International TM9X Series - Typical Low Voltage Wiring

1083288-UIM-A-0114
14 Johnson Controls Unitary Products
For additional connection diagrams for all UPG equipment refer to “Low Voltage System Wiring” document available on-line at www.upgnet.com in
the Product Catalog Section.
FIGURE 18: Typical Low Voltage Wiring
Full Stage Compressor
G
Fan
THERMOSTAT
1H/1C
W
Heat
C
24 – Volt Common
Y
SINGLE STAGE
AIR
CONDITIONER
C
24 – Volt Common
R
24 – Volt Hot
W
Full Stage Heat
G
Fan
SINGLE STAGE
FURNACE
Y1
First Stage Compressor
1H/1C Thermostat - Single Stage Furnace (STD-ECM) - Single Stage Air Conditoner
(STD-ECM)
Y
Compressor
24 – Volt Common
C
24 - Volt Common
Compressor Contactor
R
24 - Volt Hot
Y/Y2
Second or Full
Stage Compressor
FIGURE 19: Typical Low Voltage Wiring
Full Stage Compressor
G
Fan
THERMOSTAT
1H/2C
W
H ea t
C
24 – Volt Common
Y1
TWO STAGE
AIR
CONDITIONER
C
24 – Volt Common
R
24 – Volt Hot
W
Full Stage Heat
G
Fan
SINGLE STAGE
FURNACE
Y1
First Stage Compressor
1H/2C Thermostat - Single Stage Furnace (STD-ECM) - Two Stage Air Conditioner
(STD-ECM)
Y1
First Stage
Compressor
24 – Volt Common
C
24 - Volt Common
Compressor Contactor
R
24 - Volt Hot
Y/Y2
Second or Full
Stage Compressor
Y2
Second Stage
Compressor
Y2
Second Stage Solenoid