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Installation Guide
Section 5. Field Wiring Diagrams
1- 1 OR 2 STAGE COOLING W/TAM7 OR TAM9 MODEL VARIABLE SPEED AIR HANDLER
Diagram 1 - 1 or 2 Stage Cooling w/TAM7 or TAM9 in 24 volt mode Model Air Handler
OUTDOOR UNIT
R
4
B
Y/Y1
Y2
1- 1 OR 2 STAGE COOLING WITH TAM9 MODEL VARIABLE SPEED AIR HANDLER
Diagram 2 - 1 or 2 Stage Cooling w/TAM9 in communication mode Air Handler
OUTDOOR UNIT
INDOOR UNIT
R
1
B
Y/Y1
Y2
8
RELAY PANEL
D
R
INDOOR UNIT
R
O
D
Y1
3
B
Y2
O
YI
W1
YO
2
W2
Y2
W3
W1
W2
G
W3
BK
G
HUM*
BK
1
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
D
R
R
O
D
Y1
B
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
B
COMMUNICATING
CONTROL
SOV
STG1
NOTES:
STG2
1. Cut and remove the BK jumper at the indoor unit
AFC Board
2. YI and YO connections must be made as shown
STG1
for freeze protection and internally mounted
STG2
condensate overflow circuits to function properly
3. If a 3rd party overflow condensate switches are
STG3
installed, wire between Y1 of the Relay Panel and
YI of the airflow control board
4. R connection at outdoor unit is required only for two
FAN
compressor / two stage units
PWM
5. D terminal is on TAM9 ONLY.
HUM
HUM
AUX1
*See note on page 7 regarding HUM and AUX
terminals.
AUX1
Caution: Do not run Outdoor/Remote sensor wires in
AUX2
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
AUX2
B
COMMUNICATING
CONTROL
SOV
STG1
NOTES:
STG2
1. R connection at outdoor unit is required only for two
compressor / two stage units
STG1
STG2
STG3
FAN
PWM
HUM
HUM
AUX1
*See note on page 7 regarding HUM and AUX
terminals.
AUX1
Caution: Do not run Outdoor/Remote sensor wires in
AUX2
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
AUX2
AC Applications
D
R
B
D
R
B
18-HD68D1-10
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