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A
Some local codes limit the maximum amount of CFM a range hood can move. ACT allows you to control the
maximum blower CFM of select Zephyr Ventilation range hoods without the need for expensive make up air kits.
codes for CFM restrictions.
By default the maximum blower CFM is set to 1200.
!
CAUTION:
Hood must be disconnected from main power prior to performing the
conversion instructions listed below. Failure to do so could result in
personal injury or damage to the product.
To enable ACT
1. Before hood installation, gain access to PC board by following the steps shown in FIG. C.
2. Change plastic jumper positioning as shown in FIG. D to set the desired maximum blower CFM.
3. Re-install PC board & continue with hood installation.
4. Remove the appropriate foil CFM sticker included with the hood literature and place inside the hood body below
the wiring diagram or in another clearly visible location.
NOTE: After re-positioning the jumper and powering on the hood, the CFM cannot be changed again.
To verify if your installer enabled ACT
With hood off, press and hold the power button for three seconds. If 5 LEDs illuminate = defualt max. CFM, if 3
LEDs illuminate = max. 590 CFM, and if 2 LEDs illuminate = max. 390 CFM.
When ACT is enabled, the number of blower speeds will be reduced. 590 CFM = max. 3 speeds and 390 CFM =
max. 2 speeds.
There should also be a foil label located inside the hood body near the wiring diagram that indicates the blower
CFM.
- PC Board is located behind internal cover panel.
- Remove 3 screws attaching internal cover panel.
- Pull down on panel to access PC Board.
FIG. C
7
8
5
6
3
4
1
2
PC Board
12
www.zephyronline.com
Jumper Pins
7
8
5
6
3
4
1
2
J u m p e r
5 - 6 or 7-8
DEFAULT POSITION
Default Max. Blower CFM
7
8
7
5
6
5
3
4
3
1
2
1
J u m p e r
3 - 4
J u m p e r
Max. Blower CFM
Max. Blower CFM
590
390
FIG. D
Plastic
Jumper
8
6
4
2
1 - 2
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