Electrical Connections - Goodman GMVM Service Instructions Manual

OPERATION

Electrical Connections

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
W H
IRING ARNESS
The wiring harness is an integral part of this furnace. Field
alteration to comply with electrical codes should not be required.
Wires are color coded for identification purposes. Refer to the
wiring diagram for wire routings. If any of the original wire as
supplied 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.
115 V L C
OLT INE ONNECTIONS
Before proceeding with electrical connections, ensure that the
supply voltage, frequency, and phase correspond to that speci-
fied 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 accordance 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 prop-
erly 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 elec-
trical 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 appli-
cations, 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.
WARNING
,
WIRING TO
.
WARNING
CAUTION
.
Line polarity must be observed when making field connections.
Line voltage connections can be made through either the right
or left side panel. The furnace is shipped configured for a right
side (left side for counterflows) electrical connection with the
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 relo-
cate the junction box, follow the steps shown below.
NOTE: Wire routing must not to interfere with circulator blower
operation, filter removal, or routine maintenance.
J B R
UNCTION OX ELOCATION
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 right
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 connec-
tions. 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 grom-
mets to opposite side panel. Secure with screws re-
moved in step 2.
T
O AVOID THE RISK OF INJURY
FURNACE MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH
,
LOCAL CODES OR IN THEIR ABSENCE
E C .
NATIONAL LECTRICAL ODE
WARNING
. U
SE GLOVES AS A
.
WARNING
WARNING
,
ELECTRICAL SHOCK OR
WARNING
, ,
ELECTRICAL SHOCK OR DEATH
,
WITH THE LATEST EDITION OF THE
,
THE
37