Trane THV1M087A936 - Page 23

18-DE01D1-8 23
Installer’s Guide
LOW VOLTAGE HOOK UP DIAGRAMS FOR VARIABLE SPEED OIL FURNACE
(TWO STAGE/ STEP COOLING)
R
G
Y/
Y1
W1
B
THERMOSTAT
V
ARIABLE SPEED OIL FURNACE TWO STAGE COOLING
W
ITH 24V RELAY
R
G
W1
W2
Y1/
Y
LO
Y1
B
TWO STAGE
AIR CONDITIONE
R
ONE STAGE VS
OIL FURNACE
B
C
Y2
BK
Y/
Y2
Y2
R
O
W3
R1
"R" to "O" and "R" to "BK" are Factory Installed Jumpers
R1
OIL BURNER PRIMARY
R
G
Y/
Y1
W1
B
THERMOSTAT
VARIABLE SPEED OIL FURNACE TWO STEP COOLING
WITH 24V RELAY
R
G
W1
W2
Y1/
Y
LO
B
TWO STEP
AIR CONDITIONER
ONE STAGE VS
OIL FURNACE
B
C
Y2
BK
Y/
Y2
Y1
O
Y2
Note A - Cut/remove the factory installed "R" to "BK" jumper at the indoor unit.
W3
R1
Note A
"R" to "O" and "R" to "BK" are Factory Installed Jumpers
R1
OIL BURNER PRIMARY