Wire Connection - Williams 3144030 Owner's Manual

Electrical Wiring
WARNING
DANGER OF PROPERTY DAMAGE,
BODILY INJURY OR DEATH.
TURN OFF ELECTRIC POWER AT FUSE BOX OR
SERVICE PANEL BEFORE MAKING ANY ELEC-
TRICAL CONNECTIONS.
INSULATE WHERE NECESSARY.
ALL LINE VOLTAGE AND GROUND CONNEC-
TIONS MUST BE COMPLETED BEFORE ELEC-
TRICAL POWER IS RESTORED.
Connect the thermostat wires to the two (thermostat) wires
extending inside the junction box. Refer to wiring diagram
on junction box cover plate and Fig. 12.
When furnace mounting has been completed, see steps
1, 2 and 3 below.
Refer to Fig. 1, page 3.
1. Replace junction box cover plate. Tighten screws
securely.
2. Replace bottom front panel
3. Replace top front panel.
CAUTION
Label all wires prior to disconnection when
servicing. Wireing errors can cause improper and dan-
gerous operation. Verify proper operation after servicing.
NOTE
For supply connections use 6 AWG or larger wires
suitable for at least 60 C (140 F).
Use copper wire only.
All electrical work must conform to your local codes and
ordinances or in their absence, with National Electrical
Code, NFPA70/ANSI C1-1993. If you are not familiar with
wiring codes in general, have a competent electrician do
this job.
ELECTRIC POWER SUPPLY
Run a separate 240 volt, single phase, 60 cycle, 40 ampere
circuit from a separate circuit breaker or fuse in your ser-
vice entrance panel to the furnace junction box.
Do not run supply wires inside the furnace cabinet, except
from the top of cabinet down to junction box.
JUNCTION BOX
Power supply connections are made inside the junction
box located in the upper end of the cabinet. See Fig. 12
and Fig. 1, page 3.
ELECTRICAL CONNECTION
Connect 240V conduit to top of furnace as shown in
Fig. 12.
Pull supply wires through conduit and into junction box.
Attach 240V supply wires to "LINE" connection at terminal
board. Refer to wiring diagram on junction box cover plate.
If you have any doubt regarding electrical hookup or com-
pliance with code or ordinance, consult your electrical in-
spector or a licensed electrician.
GROUNDING
Provide ground connection from the unit's terminal board
to a grounded connection in the electrical service panel
or a properly driven and electrically grounded ground rod.
LOW VOLTAGE CONNECTIONS
Run thermostat wire to the furnace. See THERMOSTAT
INSTALLATION, page 8.
WIRING CONNECTIONS
WIRE CONNECTION DETAIL
_ TO THERMOSTAT
L I _*_ ._- ELECTRICAL SUPPLY
WIRES- 24OV
/-.TO APPROVI_D
"1 S
"I_RMINAL I_
BOARD _ - I
L JUNClION BOX
NO'IT.: ALL WIRING NOT SHOW
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