Typical Low Voltage Wiring - Johnson Controls York International TM9X Series Installation Manual

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