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11.2 Low Voltage Hook-up Diagrams
With TEM 6
Thermostat
R
24 VAC HOT
G
FAN
24 VAC
B/C
Common
SOV
COOL/HEAT
Y1
1st STAGE
COOL/HEAT
Y2
1st STAGE
HEATING
W1
2nd STAGE
EMERGENCY
W2
HEAT
BK
WH/BLK
• Units with pigtails require wirenuts for connections. Cap all unused wires.
• In systems with multiple stages of electric heat, jumper W1 and W2 together if comfort control has only one stage of heat.
** TEM6 only - When using a BK enabled comfort control, cut BK jumper and bypass Y1 and Y2 at the air handler. Connect BK
from comfort control to BK of the air handler. Install R-O jumper.
• TAM7 only - When using a BK enabled comfort control, cut BK jumper on the AFC and connect BK from comfort control to BK of
the air handler. TAM7 DIP switches must be configured for "AC: 2 Stage/1 Compressor".
With Variable Speed UH2/DH2-V Furnace
Thermostat
R
24 VAC HOT
G
FAN
24 VAC
B/C
Common
Y1
COOL
1st STAGE
W1
HEATING
W2
BK
Y2
COOL
2nd STAGE
14
Outdoor
Air Handler
Unit
R
G
**
B
B
Blue
O
Y1
Y1
Y2
Y2
W1
White
W2
Pink
BK
WH/BLK
Outdoor
Furnace
Unit
R
G
B
B
O
Y
Y
**
Y
LO
W1
W2
**
BK
Y2
With TAM 7
Thermostat
Air Handler
R
24 VAC HOT
G
FAN
24 VAC
B/C
Common
SOV
Y
COOL/HEAT
1st STAGE
l
COOL/HEAT
Y2
2nd STAGE
HEATING
W1
2nd STAGE
EMERGENCY
W2
HEAT
BK
WH/BLK
• Units with pigtails require wirenuts for connec-
tions. Cap all unused wires.
• In systems with multiple stages of heat, jumper
W1 and W2 together if comfort control has only one
stage of heat.
** When using a BK enabled comfort control, cut BK
(W14) jumper and bypass Y and BK at the furnace.
Connect BK from comfort control to BK of the
furnace.
• Install R-O Jumper and cut BK Jumper (W14)
Outdoor
Unit
R
G
B
B
Blue
O
Y
l
Y
Y
O
O
Y2
Y2
W1
White
W2
Pink
BK
WH/BLK
18-AC107D1-1A-EN
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