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FIGURE 48
WIRING DIAGRAM FOR SINGLE-STAGE HEAT (NON-COMMUNICATING)
2 STAGE
GAS
FURNACE
CONTROL
*
NO MECHANICAL THERMOSTATS.
*
NO MECHANICAL THERMOSTATS.
*** 2 STG. COOLING ONLY.
*** 2 STG. COOLING ONLY.
FIGURE 49
WIRING DIAGRAM FROM TWO-STAGE HEAT (NON-COMMUNICATING)
2 STAGE
GAS
FURNACE
*
NO MECHANICAL THERMOSTATS.
**** 2 STAGE COOLING ONLY.
82
1-STAGE ELECTRONIC THERMOSTAT*
(NON-COMMUNICATING)
Y
(Y
)
H
2
Y
(Y
)
***
L
1
2-STAGE ELECTRONIC THERMOSTAT*
(NON-COMMUNICATING)
Y
(Y
)
H
2
Y
(Y
)
****
L
1
Y Y
2
Y Y
2
Y (Y
Y
Y (Y
)
2
Y
(Y
)
***
L
1
)
2
(Y
)
****
L
1
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