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1
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Main Power Connection
- Recommended location is directly above the horizontal divider that separates the
blower and control center access panels. Bring the main power and optional
exhaust fan wiring into the unit at this location.
2. Control Transformer -
Provides 24 Volt power for fan and the furnace controls.
3. Transformer Fuses -
Provides proper fusing for control transformer.
4. Motor Fuses -
Provides proper fusing for supply and exhaust fan motors.
5. Motor Starters -
24 Volt magnetic contacts for starting motors, comes standard with electronic
overload. Can be provided with auxiliary contacts.
Optional Exhaust Starter and Fusing (Shown)
6
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Terminal Strip
-
24 Volt power at strip for control wiring.
Note: This is a typical control center, an exact wiring diagram is shipped with the unit.
Control Center Layout
DANGER !
High voltage electrical input is needed for this equipment. This work should
be performed by a qualified electrician.
Before connecting power to the unit, read and understand the following instructions and wiring diagrams.
Complete wiring diagrams are attached inside the door(s) of the unit.
All wiring should be done in accordance with the National Electrical Code ANSI/NFPA-70 latest edition and any
local codes that may apply. In Canada, wiring should be done in accordance with the Canadian Electrical Code.
The equipment must be properly grounded.
Figure 4: Unit Control Center
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