Electrical Connections
13
WARNING:
DANGER OF PROPERTY DAMAGE,
BODILY INJURY OR DEATH.
TURN OFF ELECTRIC POWER AT FUSE BOX OR
SERVICE PANEL BEFORE MAKING ANY ELECTRICAL
CONNECTIONS.
INSULATE WHERE NECESSARY.
ALL LINE VOLTAGE AND GROUND CONNECTIONS
MUST BE COMPLETED BEFORE ELECTRICAL POWER
IS RESTORED.
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, 50 ampere
circuit from a separate circuit breaker or fuse in your service
entrance panel to the heater junction box.
Do not run supply wires inside the heater 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 Figure 11 and
Figure 1 on page 6.
Electrical Connection
Connect 240V conduit to top of heater as shown in Figure 11.
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 heater. See Thermostat Installation
on page 10.
Connect the thermostat wires to the two (thermostat) wires
extending inside the junction box. Refer to wiring diagram on
junction box cover plate and Figure 11.
When heater mounting has been completed, see steps 1, 2
and 3 below.
Refer to Figure 1, page 6.
1.
Replace junction box cover plate. Tighten screws
securely.
2.
Replace bottom front panel
3.
Replace top front panel.
NOTE
For supply connections use 6 AWG or larger wires suitable for
at least 60 C (140 F).
Use copper wire only.
CAUTION
Label all wires prior to disconnection when servicing.
Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.
FIGURE 11
– Wiring Connections
