International comfort products C Series Installation Instructions Manual page 36

INSTALLATION INSTRUCTIONS
Alternate Power Supplies
This furnace is designed to operate on a utility generated
power which has a smooth sinusoidal waveform. If the furnace
is to be operated on a generator or other alternate power
supply, the alternate power supply must produce a smooth
sinusoidal waveform for compatibility with furnace electronics.
The alternate power supply must generate the same voltage,
phase, and frequency (Hz) as shown in Table 11 or on the
furnace rating plate.
Table 11 Electrical Data
VOLTS- -
HERTZ- -
UNIT SIZE PHASE
0401410 115-60-1
0401712 115-60-1
0601412 115-60-1
0601716 115-60-1
0801716 115-60-1
0802120 115-60-1
1002116 115-60-1
1002120 115-60-1
1202420 115-60-1
* Permissible limits of the voltage range at which the unit operates satisfactorily.
# Unit ampacity = 125 percent of largest operating component's full load amps plus 100 percent of all other potential operating components' (EAC, humidifier, etc.) full load
amps.
{ Time--delay type is recommended.
} Length shown is as measured one way along wire path between unit and service panel for maximum 2 percent voltage drop.
Figure 43 Isolation Relay for Humidifiers with Internal Power Supply
To Humidifier Leads
To Humidifier Leads
36
N9MSB SINGLE- -STAGE, PSC BLOWER FURNACES
OPERATING VOLTAGE
RANGE* MAXIMUM
UNIT
Maximum* Minimum*
AMPS
127 104 5.2
127 104 7.4
127 104 5.3
127 104 8.6
127 104 8.1
127 104 8.6
127 104 7.3
127 104 11.9
127 104 11.9
Specifications subject to change without notice.
Power from an alternate power supply that non-sinusoidal may
damage the furnace or cause erratic furnace operation.
Contact the alternate power
specifications and details.
MINIMUM
WIRE
UNIT
SIZE
AMPACITY#
AWG
7.5 14
10.3 14
7.6 14
11.7 14
11.1 14
11.7 14
10.1 14
15.8 12
15.8 12
To HUM 24 VAC Terminal
On Furnace Control Board
24 V
Coil
To C Screw Terminal
on Thermostat Strip
Gas Furnace: N9MSB
supply manufacturer
MAXIMUM
MAXIMUM
FUSE OR CKT
WIRE LENGTH
BKR
FT (M)}
AMPS{
49 (14.9) 15
36 (11.0) 15
48 (14.6) 15
31 (9.4) 15
33 (10.1) 15
31 (9.4) 15
36 (11.0) 15
36 (11.0) 20
36 (11.0) 20
A11157
440 01 4104 07
for