16
58MCB
Electrical data
* Permissible limits of the voltage range at which the unit will operate satisfactorily.
† Unit ampacity = 125% of largest operating component’s full load amps plus 100% of all other potential operating components’ (EAC, humidifier,
etc.) full load amps.
‡ Length is as measured 1 way along wire path between unit and service panel for maximum 2% voltage drop.
** Time-delay type is recommended.
Typical wiring schematic
UNIT SIZE 040-08 040-12 060-08 060-12 060-16 080-12 080-16 080-20 100-16 100-20 120-20 140-20
UNIT VOLTS—HERTZ—PHASE 115—60—1
OPERATING VOLTAGE RANGE (Min—Max)* 104—127
MAXIMUM UNIT AMPS 6.1 7.3 6.1 7.1 9.5 7.6 10.0 14.1 10.2 14.8 14.6 14.3
UNIT AMPACITY† 8.4 10.0 8.4 9.8 12.8 10.4 13.4 18.4 13.5 19.3 19.1 18.8
MINIMUM WIRE SIZE 14 14 14 14 14 14 14 12 14 12 12 12
MAXIMUM WIRE LENGTH (Ft)‡ 44 37 44 38 29 36 28 31 27 30 30 30
MAXIMUM FUSE SIZE OR CKT BKR (Amps)** 15 15 15 15 15 15 15 20 15 20 20 20
TRANSFORMER (24v) 40va
EXTERNAL CONTROL POWER AVAILABLE Heating 12va
Cooling 21va
AIR CONDITIONING BLOWER RELAY Standard
A02174
115-V FIELD-
SUPPLIED
DISCONNECT
AUXILIARY
J-BOX
24-V
TERMINAL
BLOCK
THREE-WIRE
HEATING-ONLY
FIVE WIRE
NOTE 1
NOTE 2
FIELD-SUPPLIED
DISCONNECT
CONDENSING
UNIT
TWO
WIRE
FURNACE
C
O
N
T
R
O
L
R
G
COM
WCR GY
GND
GND
FIELD 24-V WIRING
FIELD 115-, 208/230-, 460-V WIRING
FACTORY 24-V WIRING
FACTORY 115-V WIRING
208/230- OR
460-V
THREE
PHASE
208/230-V
SINGLE
PHASE
BLOWER DOOR SWITCH
WHT
BLK
WHT
BLK
NOTES: Connect Y-terminal in furnace as shown for proper blower operation.
Some thermostats require a "C" terminal connection as shown.
If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
W
Y
GND
THERMOSTAT
TERMINALS
1.
2.
3.
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