Series 31XX, 32XX Furnaces | C. Installation 7
5. Locate the Line Power Access Port on the center of the back side of the control system.
Determine the appropriate gauge wire by conrming the amperage on the data label.
Insert the wire into the Line Power port.
6. Connect the power cord to the power supply block and replace the top cover. Tighten
the line power clamp to the power cord to help prevent bad connections and any
movement of the cord.
7. Use the supplied interconnecting cord to connect the control system to the furnace,
along with the thermocouples. Skip to step 9.
NOTE: When attaching the green twist lock plug, make sure to push the
lock in then turn. Repeat this motion until the plug is tight.
8. Remove the terminal block cover to access the terminal block. Refer to the electrical
connection drawings to make the proper power connections.
CAUTION: Obey all national and local electrical code requirements.
Furnaces and control systems must be grounded and wired according to
national and local electrical codes.
9. Connect the thermocouples to the control system. Use the thermocouple type specic
to your furnace.
CAUTION: Thermocouple extension cables and connectors must be
compatible with the thermocouple type being used.
10. Verify that the heating elements do not have any exposed wires. If sections of the
embedding are missing or there are large cracks in the embedding, refer to Section
G (p. 13) of this manual for repair instructions. Not all elements require embedding
cement.
Figure C.2 - Interior Controller - Line Power Access Port
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