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13
3. Run 6 to 8 wires during initial installation. Tape or cap off any
unused wires.
DS1 DS2 MS1 MS2 EH IN LS FD1 FD2 TF- TF+ C R GL W2 Y/W1 B GH
REMOTE THERMOSTATAUXILIARY
X1
O
B**
Y
W1
W2
G*
R
Thermostat
Connections
Control Board
Connections
Wiring Schematic for Straight Cool Unit
*NOTE: For high speed fan operation, connect “G” to “GH”.
DS1 DS2 MS1 MS2 EH IN LS FD1 FD2 TF- TF+ C R GL W2 Y/W1 B GH
REMOTE THERMOSTATAUXILIARY
X1
O
B**
Y
W1
W2
G*
R
Thermostat
Connections
Control Board
Connections
Wiring Schematic for Remote Heat Pump
*NOTE: For high speed fan operation, connect “G” to “GH”.
Table 5 shows the maximum wire length and corresponding gage
size for installation of a remote thermostat.
Maximum Wire
Len
g
th
Wire Size
(AWG)
Maximum Length
Allowed
#24 400 ft
#22 600 ft
#20 900 ft
#18 1500 ft
#16 2000 ft
Table 5 - Maximum Wire Length for Remote
Control Connection
WARNING
T
O PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO
ELECTRIC SHOCK, DISCONNECT THE ELECTRICAL POWER SUPPLY BEFORE
CLEANING THIS UNIT.
Operating Instructions
**If configured, B and O input terminals can be used interchangeably.
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