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THREE-WIRE
BLK
BLK
WHT
WHT
GND
AUXILIARY
115-VOLT FIELD-
J-BOX
SUPPLIED
FUSED
DISCONNECT
VOLTS—
UNIT SIZE
HERTZ—
PHASE
024045
115—60—1
036045
115—60—1
024065
115—60—1
036065
115—60—1
042091
115—60—1
048091
115—60—1
036111
115—60—1
048111
115—60—1
060111
115—60—1
048135
115—60—1
060135
115—60—1
060155
115—60—1
* Permissible limits of the voltage range at which the unit operates satisfactorily.
† Time-delay fuse is recommended.
‡ Length shown is as measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.
CAUTION: This furnace is equipped with a manual
reset limit switch or fuse link in the gas control area. The
switch or fuse link opens and shuts off power to the gas
valve if a flame rollout or overheating condition occurs in
the gas control area. DO NOT bypass the switch. Correct
inadequate combustion air supply problem and reset the
switch or replace the fuse link.
Before operating the furnace, check each manual reset switch for
continuity. If necessary, press the button to reset the switch.
The blower compartment door must be in place to complete the
115-v circuit to the furnace.
NOTE 2
W
C
FIVE
WIRE
HEATING-
ONLY
W
R
GND
G
C
NOTE 1
CONTROL
Y
BOX
24-VOLT
TERMINAL
BLOCK
NOTES:
FURNACE
Fig. 8—Heating and Cooling Application Wiring Diagram
TABLE 5—ELECTRICAL DATA
OPERATING
VOLTAGE RANGE
Maximum*
Minimum*
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
FIELD 24-VOLT WIRING
FIELD 115-, 208/230-, 460-VOLT WIRING
FACTORY 24-VOLT WIRING
FACTORY 115-VOLT WIRING
THERMOSTAT
R
G
Y
TERMINALS
CONDENSING
UNIT
TWO
WIRE
1.
Connect Y-terminal as shown for proper operation.
2.
Some thermostats require a "C" terminal connection as shown.
3.
If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
MAXIMUM
MINIMUM
UNIT AMPS
WIRE GAGE
6.0
14
8.3
14
5.9
14
8.7
14
9.0
14
10.4
14
8.0
14
10.1
14
14.4
12
10.1
14
13.3
12
14.0
12
B. Sequence of Operation
CAUTION: Furnace control must be grounded for
proper operation, or control will lockout. Control is
grounded through green wire routed to gas valve and
burner bracket screw.
Using the schematic diagram shown in Fig. 10, follow the
sequence of operation through the different modes. Read and
follow the wiring diagram very carefully.
NOTE: If there is a power interruption and any thermostat call,
the control initiates a 90-sec blower only on period before starting
another cycle.
—8—
FIELD-SUPPLIED
FUSED DISCONNECT
208/230- OR
460-VOLT
THREE
PHASE
208/230-
VOLT
SINGLE
PHASE
GND
MAXIMUM
MAXIMUM
FUSE OR
WIRE LENGTH (FT)‡
HACR-TYPE CKT
BKR AMPS†
47
34
47
32
31
27
35
28
31
28
33
31
A95241
15
15
15
15
15
15
15
15
20
15
20
20
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