Carrier 58MCB Installation, Start-Up, And Operating Instructions Manual page 25

VOLTS—
UNIT
HERTZ—
SIZE
PHASE
040-08 115—60—1
040-12 115—60—1
060-08 115—60—1
060-12 115—60—1
060-16 115—60—1
080-12 115—60—1
080-16 115—60—1
080-20 115—60—1
100-16 115—60—1
100-20 115—60—1
120-20 115—60—1
140-20 115—60—1
* Permissible limits of voltage range at which unit will operate 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.
‡ Length shown is as measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.
** Time-delay type is recommended.
HEATING-ONLY
BLOWER DOOR SWITCH
BLK BLK
WHT WHT
GND
115-V FIELD-
SUPPLIED
DISCONNECT
rating plate. Also, check to be sure that service provided by power
supply is sufficient to handle load imposed by this equipment.
Refer to rating plate or Table 6 for equipment electrical specifi-
cations.
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The furnace must be electrically grounded in accordance with local
codes; or in the absence of local codes, with the National Electric
Code ANSI/NFPA 70 and/or the Canadian Electric Code, CSA
C22.1, Part I, if an external electrical source is utilized.
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FIRE HAZARD
Failure to follow this warning could result in serious injury,
death, or property damage.
Do not connect aluminum wire between disconnect switch
and furnace. Use only copper wire. (See Fig. 31.)
Table 6—Electrical Data
OPERATING
VOLTAGE RANGE
Max* Min*
127 104
127 104
127 104
127 104
127 104
127 104
127 104
127 104
127 104
127 104
127 104
127 104
NOTE 2
W
FIVE WIRE
THREE-WIRE
W
C
R
O
N
T
GND
R G
AUXILIARY
O
J-BOX
COM
L
Y
24-V
TERMINAL
BLOCK
NOTES:
FURNACE
Fig. 30—Heating and Cooling Application Wiring Diagram
MAX
UNIT
UNIT
AMPACITY†
AMPS
6.1 8.4
7.3 10.0
6.1 8.4
7.1 9.8
9.5 12.8
7.6 10.4
10.0 13.4
14.1 18.4
10.2 13.5
14.8 19.3
14.6 19.1
14.3 18.8
THERMOSTAT
C R G Y
TERMINALS
NOTE 1
CONDENSING
UNIT
TWO
WIRE
1. Connect Y-terminal in furnace as shown for proper blower 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.
ELECTRIC
DISCONNECT
SWITCH
Fig. 31—Disconnect Switch and Furnace
25
MIN MAX WIRE
WIRE LENGTH
SIZE (FT)‡
14 44
14 37
14 44
14 38
14 29
14 36
14 28
12 31
14 27
12 30
12 30
12 30
FIELD 24-V WIRING
FIELD 115-, 208/230-, 460-V WIRING
FACTORY 24-V WIRING
FACTORY 115-V WIRING
FIELD-SUPPLIED
DISCONNECT
208/230- OR
460-V
THREE
PHASE
208/230-V
SINGLE
PHASE
GND
COPPER
WIRE ONLY
ALUMINUM
WIRE
MAX FUSE
OR CKT BKR
AMPS**
15
15
15
15
15
15
15
20
15
20
20
20
A02174
A93033