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Electrical Connections; Wiring Harness; 115 Volt Line Connections; Junction Box Relocation - Maytag Amana MEC96 Series Installation Instructions Manual

Two-stage, fsp category iv direct or non direct vent air furnace
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Electrical Connections

Wiring Harness

The wiring harness is an integral part of this furnace. Wires
are color coded for identification purposes. Refer to the wiring
diagram for wire routings. If any of the original wire as sup-
plied with the furnace must be replaced, it must be replaced
with wiring material having a temperature rating of at least
105° C. Any replacement wiring must be a copper conductor.
HIGH VOLTAGE !
T
O AVOID THE RISK OF ELECTRICAL SHOCK
THE UNIT MUST BE POLARIZED AND GROUNDED
HIGH VOLTAGE !
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
,
ELECTRICAL SHOCK
DISCONNECT ELECTRICAL POWER
BEFORE SERVICING OR CHANGING ANY ELECTRICAL
.
WIRING
L
ABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
. W
CONTROLS
IRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS
. V
OPERATION
ERIFY PROPER OPERATION AFTER SERVICING

115 Volt Line Connections

Before proceeding with electrical connections, ensure that
the supply voltage, frequency, and phase correspond to that
specified on the unit rating plate. Power supply to the furnace
must be NEC Class 1, and must comply with all applicable
codes. The furnace must be electrically grounded in accor-
dance with local codes or, in their absence, with the latest
edition of The National Electric Code, ANSI NFPA 70 and/or
The Canadian Electric Code CSA C22.1.
Use a separate fused branch electrical circuit containing
properly sized wire, and fuse or circuit breaker. The fuse or
circuit breaker must be sized in accordance with the maximum
overcurrent protection specified on the unit rating plate. An
electrical disconnect must be provided at the furnace location.
Connect hot, neutral, and ground wires as shown in the wiring
diagram located on the unit's blower door. For direct vent
applications, the cabinet opening to the junction box must be
sealed air tight using either an UL approved bushing such as
Heyco Liquid Tight or by applying non-reactive UL approved
sealant to bushing.
Line polarity must be observed when making field con-
nections. Line voltage connections can be made through
either the right or left side panel. The furnace is shipped
configured for a left side electrical connection with the
WARNING
,
WIRING TO
.
WARNING
CAUTION
.
junction box located inside the burner compartment. To
make electrical connections through the opposite side of the
furnace, the junction box must be relocated to the other
side of the burner compartment prior to making electrical
connections. To relocate the junction box, follow the steps
shown below.
NOTE: Wire routing must not to interfere with circulator
blower operation, filter removal, or routine maintenance.

Junction Box Relocation

E
DGES OF SHEET METAL HOLES MAY BE SHARP
PRECAUTION WHEN REMOVING HOLE PLUGS
T
O PREVENT PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK
DISCONNECT ELECTRICAL POWER BEFORE INSTALLING OR SERVICING THIS
.
UNIT
HIGH VOLTAGE !
T
O AVOID THE RISK OF INJURY
,
DEATH
THE FURNACE MUST BE ELECTRICALLY
GROUNDED IN ACCORDANCE WITH LOCAL CODES OR IN
,
THEIR ABSENCE
WITH THE LATEST EDITION OF THE
N
E
C
ATIONAL
LECTRIC
ODE
Line voltage connections can be made through either the
right or left side panel. The furnace is shipped configured
for a left side electrical connection. To make electrical
connections through the opposite side of the furnace, the
junction box must be relocated to the left side prior to
making electrical connections. To relocate the junction
box, perform the following steps.
1. Remove the burner compartment door.
2. Remove and save the two screws securing the junction
box to the side panel.
3. Relocate junction box and associated plugs and
grommets to opposite side panel. Secure with screws
removed in step 2.
To ensure proper unit grounding, the ground wire should run
from the furnace ground screw located inside the furnace
junction box all the way back to the electrical panel. NOTE:
Do not use gas piping as an electrical ground. To confirm
proper unit grounding, turn off the electrical power and
perform the following check.
1. Measure resistance between the neutral (white)
connection and one of the burners.
2. Resistance should measure 10 ohms or less.
This furnace is equipped with a blower door interlock switch
which interrupts unit voltage when the blower door is opened
for servicing. Do not defeat this switch.
26
WARNING
. U
SE GLOVES AS A
.
WARNING
WARNING
,
ELECTRICAL SHOCK OR
.
,

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