Broan Lau Blower Kit for CMF Installation guide

Brand: Broan

Model: Lau Blower Kit for CMF

Type: Installation guide

Lau Blower Kit

For CMF Furnace Models

INSTALLATION INSTRUCTIONS

INSTALLATION SEQUENCE FOR

BLOWER/MOTOR ASSEMBLY 903126

1. Remove existing blower by disconnecting wiring plug

and removing the securing screws on the blower deck.

Pull the blower assembly forward to remove.

2. Slide the new blower assembly into place by aligning

the blower ﬂanges with the lances in the deck.

3. Secure the blower housing to the deck with the securing

screws.

4a. If replacing a 3-speed blower: Connect the wiring

plug and proceed to Step 5.

4b. If replacing a single-speed blower proceed as

follows: Connect the new blower wiring as shown in

Figures 1 and 2. The black wire lead provided in the

kit must be plugged into the appropriate receptacle for

proper furnace operation. NOTE: Use care to select

the correct wire location initially as the wire cannot be

removed without special tools.

CAUTION: Miswiring the blower motor can result

in noisy operation or overheating.

5. Using the wire tie provided bundle and tie up the wires

as needed to prevent interference with the blower.

Figure 1. Blower Installation when

Replacing a Single-Speed Blower

Blower

Assembly

Fan/Limit

Control

Junction Box

(Door Switch)

See Figure 2 for

wire connections

Figure 2. Wire Connections when

Replacing a Single-Speed Blower

To Fan/Limit

Control

Black Wire

Provided

To Junction

Box

White

Wire

6-Pin Connector

Motor Leads

Red

Black

Blue

White

Wire

CMF-100: #4 - Opposite Black Motor Lead

CMF-080: #3 - Opposite Blue Motor Lead

CMF-065: #1 - Opposite Red Motor Lead

7076240

Speciﬁcations & illustrations subject to change without notice or incurring obligations (06/15).

Broan Lau Blower Kit for CMF Installation guide

Broan Lau Blower Kit for CMF Installation guide

Broan Lau Blower Kit for CMF Installation guide

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