4. Connect the blower to exhaust system with a 10” diameter metal duct only. Use 10” adjustable elbow to adjust to roof
angle. IMPORTANT: You must run 10” round duct work from the external blower to the ceiling. Before the duct
work passes through the ceiling b racket, use a 10” to 8” transition adapter and run 8” duct work to t he opening
on the hood. The 8” duct work run should not exceed 60” in length. (see Fig 4a)
Tape and screw all joints to prevent air leaks. See Fig - 4.
5. Remove top cover of blower to access wiring connections. Retain mounting screws.
6. Run electrical conduit per local code to conduit outlet in bottom plate of blower (use liquid tight connection). Other end of
conduit will connect to external blower wiring box in your hood. See installation instructions earlier in manual for
wiring location.
7. Run (5) wires in conduit (1 black, 1 white, 1 blue, 1 red and 1 green ground) between the blower and hood. Check for
local code compliance for style and gauge of wires. The ground wire shall have a suitable gauge according to the
Electrical Code and Local Regulations. See Fig. -6 for wiring details. These wires will connect to the external blower
wiring box on top of the hood.
CAUTION: Before wiring the unit, switch power off at service panel and lock the service disconnecting means to prevent
power from being switched on accidentally.
8. Replace cover onto blower from step 5 and secure with screws provided. All screws must be in place on cover.
Fig - 6
CBE-1000: WIRING DIAGRAM
White (common)
Black (high)
Blue (med)
Red (low)
Green (ground)
External Blower
Wiring Box
(hood)
Junction Box
(CBE-1000)
4
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Shingle Under Flashing
Shingle Over Flashing
Conduit
10” Diameter Duct Work
10” Adjustable Elbow
Screw and Tape Joint
External Blower
Ceiling
Ceiling Bracket
Hood
Roof
10” to 8” Transition Adapter
8“ Duct Work
Fig - 4
Fig - 4a
CBE-1000: 1/2 HP 3 - Speed Motor. 115V AC, 60Hz /15 Amp Circuit Required
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General