28
Electrical Wiring
ELECTRICAL CONNECTIONS
Before proceeding with the electrical connections, be certain
that the voltage, frequency and phase corresponds to that spec-
ified on the furnace rating plate . For single furnace application,
maximum over-current protection is 15 amperes .
Use a separate fused branch electrical circuit containing a prop-
erly sized fuse or circuit breaker . Run this circuit directly from
the main switch box to an electrical disconnect that is readily
accessible and located near the furnace (as required by code) .
Connect from the electrical disconnect to the junction box on the
left side of the furnace, inside the blower compartment . For the
proper connection, refer to the appropriate wiring diagram lo-
cated on the inside cover of the furnace control box and in these
instructions .
NOTE: The electrical junction box may be moved to the right
side if necessary . A knockout is provided . Seal the opposite hole
with plug provided .
NOTE: L1 (hot) and L2 (neutral) polarity must be observed
when making field connections to the furnace . The ignition con-
trol may not sense flame if L1 and L2 are reversed . Make all
electrical connections in accordance with the latest edition of the
National Electrical Code ANSI/NFPA70 .
These may be obtained from:
National Fire Protection Association, Inc .
Batterymarch Park
Quincy, MA 02269
REVERSING THE ELECTRICAL
CONNECTION (JUNCTION BOX)
NOTE: Reversing the junction box is not possible in 14 .0 inch
cabinets .
If the line voltage electrical needs to be moved to the opposite
side of the furnace, the following steps should be taken:
1 . The furnace must NOT be electrically connected to line volt-
age prior to reversing the electrical connection .
2 . Disconnect the wires from the door switch .
3 . Remove the junction box from the furnace cabinet wall by
removing the two screws that hold it to the cabinet . Leave
the wires connected to the junction box .
4 . Remove 7/8” plug from hole opposite j-box location . Drill 2
@ 3/16” Ø holes in the jacket . NOTE: Dimples/marks are
provided in the sheet metal for correct drilling location .
5 . Move the junction box to the opposite side of the cabinet .
Install using the two screws removed in step 3 above . Note
that all screws penetrating the junction box must be blunt –
no sharp tipped screws can be used .
6 . Replace the plug from the opposite of the furnace (the new
j-box location) to the old j-box location and install qty=2 1/4”
plugs from parts bag in empty screw holes in old location of
j-box into the mounting screw holes in the old junction box
location .
ELECTRICAL WIRING
ELECTRICAL WIRING
WARNING
THE CABINET MUST HAVE AN UNINTERRUPTED
GROUND ACCORDING TO THE LATEST EDITION
OF THE NATIONAL ELECTRICAL CODE, ANSI/
NFPA70 OR LOCAL CODES THAT APPLY . DO NOT
USE GAS PIPING AS AN ELECTRICAL GROUND . A
GROUND SCREW IS PROVIDED IN THE JUNCTION
BOX . FAILURE TO DO SO CAN CAUSE ELECTRI-
CAL SHOCK RESULTING IN PERSONAL INJURY
OR DEATH .
WARNING
THIS FURNACE IS EQUIPPED WITH A BLOWER
DOOR SAFETY SWITCH . DO NOT DISABLE THIS
SWITCH . FAILURE TO FOLLOW THIS WARNING
CAN RESULT IN ELECTRICAL SHOCK, PERSONAL
INJURY OR DEATH .
DOOR SWITCH
REMOVAL INSTRUCTIONS
LOCKING
TABS
FIGURE 22
ST-A1220-05
WARNING
TURN OFF ELECTRIC POWER AT FUSE BOX OR
SERVICE PANEL BEFORE MAKING ANY ELEC-
TRICAL CONNECTIONS . FAILURE TO DO SO CAN
CAUSE ELECTRICAL SHOCK RESULTING IN PER-
SONAL INJURY OR DEATH .
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Summary of Contents for 801C Series
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