Tempstar F9MAC - Alternate Power Supplies

INSTALLATION INSTRUCTIONS Gas Furnace: (F/G)MAC
30 440 01 4201 01
Specifications subject to change without notice.
Refer to the instructions supplied with the
communicating wall control for complete details.
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 9 or on the
furnace rating plate.
Power from an alternate power supply that non-sinusoidal may
damage the furnace or cause erratic furnace operation.
Contact the alternate power supply manufacturer for
specifications and details.
Table 9 Electrical Data − MODULATING (F/G)9MAC
UNIT SIZE
VOLTS-
HERTZ-
PHASE
OPERATING VOLTAGE
RANGE* MAXIMUM
UNIT
AMPS
UNIT
AMPACITY#
MINIMUM
WIRE SIZE
AWG
MAXIMUM
WIRE
LENGTH
FT (M)}
MAXIMUM
FUSE OR CKT
BKR
AMPS{
Maximum* Minimum*
60,000 115-60-1 127 104 9.7 12.7 14 29 (8.8) 15
80,000 115-60-1 127 104 9.7 12.7 14 29 (8.8) 15
100,000 115-60-1 127 104 14.8 19.1 12 30 (9.1) 20
120,000 115-60-1 127 104 14.8 19.1 12 30 (9.1) 20
* 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 38 Isolation Relay for Humidifiers with Internal Power Supply
24 V
Coil
To Humidifier Leads
To Com/24V Screw Terminal
on Thermostat Strip
To HUM Terminal On
Furnace Control Board
To Humidifier Leads
A11157
Figure 39 Variable Speed Furnace Control − Switch Locations
OAT
PL9
A B C D
PL4
PL7
SW*
1
SW2 SW3
SW4
O
N
W2
Y1
DHUM
8 7 6 5 4 3 2 1
3 2 1
O
N
O
N
O
N
3 2 1
3 2 1