GM9C80 Service Manual
SYSTEM OPERATION
6
T RT T TRT T T
R R RT G RRT G R
JR R
–
D
O NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND
LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
–
T
T
G
•
D
O NOT TRY TO LIGHT ANY APPLIANCE.
•
D
O NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY
PHONE IN YOUR BUILDING.
•
I
MMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR’S
PHONE.
F
OLLOW THE GAS SUPPLIER’S INSTRUCTIONS.
•
I
F YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIRE
DEPARTMENT.
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I
NSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER,
SERVICE AGENCY OR THE GAS SUPPLIER.
T
T R TR RG T T T T B
RR R GR
G
TG
T
R BR RG R
TG T T
T R R
B RT
R T RRT
G R JR R T
B R RR T T RG TR
RG RRR RR GR RT
R RR RT TR RG
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 identication 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
copper conductor.
Before proceeding with electrical connections, ensure that
the supply voltage, frequency, and phase correspond to
that specied on the unit rating plate. Power supply to the
furnace must be N.E.C. 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.
An electrical disconnect must be provided at the furnace
location.
Line polarity must be observed when making eld
connections.
Connect hot, neutral, and ground wires as shown in the wiring
diagram located on the unit’s blower door. Metal conduit
is not considered a substitute for an actual ground wire to
the unit. Line polarity must be observed when making eld
connections. Line voltage connections can be made through
either the right or left side panel.
The furnace is shipped congured for a right side (left side
for counterow) 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.
N Wire routing must not interfere with circulator blower
operation, lter removal, or routine maintenance.
T
T R TR JR R T T
R T B TR GR R T
R TR B T T TT T T
T
TR
G
TG
T
R BR RG R
GG TR RG
T R
R B RT
R T
RRT G R JR R T
1.0 Amp maximum at 120 VAC
1.0 Amp maximum at 24 VAC
Turn OFF power to the furnace before installing any
accessories. Follow the humidier or air cleaner manufacturers’
instructions for locating, mounting, grounding, and controlling
these accessories.
If it is necessary for the installer to supply additional line
voltage wiring to the inside of the furnace, the wiring must
conform to all local codes, and have a minimum temperature
rating of 105°C. All line voltage wire splices must be made
inside the furnace junction box.