Table9- Electrical Data
UNIT SIZE VOLTS-
HERTZ-
PHASE
OPERATING VOLTAGE
RANGE*
TWO-STAGE ECM FURNACES
UNIT
AMPACITY#
MAXIMUM
UNIT
AMPS
Maximum* Minimum*
080-14 115-60-1 127 104 8.5
080-14 115-60-1 127 104 8.5
080-20 115-60-1 127 104 13.6
100-22 115-60-1 127 104 13.7
120-22 115-60-1 127 104 13.7
*Permissiblelimitsofthevoltagerangeatwhichtheunitoperatessatisfactorily.
11.5
11.5
17.9
18.0
18.0
MINIMUM
WIRE
SIZE
AWG
14
14
12
12
12
MAXIMUM
WIRE
LENGTH
FT (M):I:
32 (9.8)
32 (9.8)
32 (9.8)
31 (9.4)
31 (9.4)
MAXIMUM
FUSE OR CKT
BKR
AMPSI"
15
15
2O
2O
2O
# 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.
1"Time-delay type is recommended.
:[:Length shown is as measured one way along wire path between furnace and service panel for maximum 2 percent voltage drop.
GROUND_
NEUTRAL'
ii
Jq3OX _
MOUNTING
SCREWS _"--.
J-BOX
MOUNTING
BRACKET
GROUND
Fig. 31 - Installing J-Box (When Used)
A11299
LINEVOLTAGE
ELECTRIC
DISCONNECT
SWITCH
O
Al1146
Fig. 32 - Field-Supplied Electrical Box on Furnace Casing
35
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