Zephyr Titan Island AK7742AS Installation guide

Use, Care, and Installation Guide
Model number:
Serial Number:
www.zephyronline.com
SEP19.0101 © Zephyr Ventilation, LLC
Airflow Control Technology
TM
C
+
Titan Island
AK7736AS
AK7742AS
AK7748AS

1
SAFETY NOTICE................................................................. 2-3
LIST OF MATERIALS....................................................... 4
INSTALLATION
Ducting Calculation Sheet....................................... 5
Mounting Height & Clearance................................ 6
Ducting Options........................................................... 7
Hood Specications ................................................... 8
Mounting the Hood..................................................... 9-11
PBD-1300A Dual Blower Ducting......................... 12
FEATURES & CONTROLS
Electronic LCD Controls................................. 13
Optional Remote Control................................ 14
MAINTENANCE
Cleaning, Filter Removal & Lights....................... 15
TROUBLESHOOTING................................................................ 16
ACT™ CONVERSION................................................................ 17
WIRING DIAGRAMS................................................................... 18
LIST OF PARTS AND ACCESSORIES.............................. 19
WARRANTY.................................................................................... 20
PRODUCT REGISTRATION.................................................... 21
Table of Contents

Important Safety Notice
READ AND SAVE THESE INSTRUCTIONS
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WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT USE THIS FAN WITH ANY SOLID-STATE CONTROL DEVICE.
WARNING
TO REDUCE THE RISK OF FIRE ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
a. Use this unit only in the manner intended by the manufacturer, if you have questions, contact the manufacturer.
b. Before servicing or cleaning unit, switch power o󰀨 at service panel and lock panel to prevent power from being switched on accidentally.
When the service disconnecting means cannot be locked, securely fasten a prominent warning device, such as a tag, to the service panel.
CAUTION
For general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors. Take care when using cleaning agents
or detergents. Suitable for use in household cooking area.
WARNING
TO REDUCE THE RISK OF RANGE TOP GREASE FIRE:
a. Never leave surface units unattended at high settings. Boilovers cause smoking and greasy spillovers that may ignite. Heat oils slowly on
low or medium settings.
b. Always turn hood ON when cooking at high heat or when aming food
c. Clean ventilating fans frequently. Grease should not be allowed to accumulate on fan or lter.
d. Use proper pan size. Always use cookware appropriate for the size of the surface element.
e. Keep fan, lters and grease laden surfaces clean.
f. Use high setting on hood only when necessary.
g. Don’t leave hood unattended when cooking.
h. Always use cookware and utensils appropriate for the type of and amount of food being prepared.
WARNING
TO REDUCE THE RISK OF INJURY TO PERSONS IN THE EVENT OF A RANGE TOP FIRE, OBSERVE THE FOLLOWING:
a. SMOTHER FLAMES with a close-tting lid, cookie sheet, or metal tray, then turn o󰀨 the burner. BE CAREFUL TO PREVENT BURNS.
If the ames do not go out immediately, EVACUATE AND CALL THE FIRE DEPARTMENT.
b. NEVER PICK UPA FLAMING PAN – You may be burned.
c. DO NOT USE WATER, including wet dishcloths or towels – a violent steam explosion will result.
d. Use an extinguisher ONLY if:
1. You know you have a Class ABC extinguisher, and you already know how to operate it.
2. The re is small and contained in the area where it started.
3. The re department is being called.
4. You can ght the re with your back to an exit
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
a. Installation work and electrical wiring must be done by qualied person(s) in accordance with all applicable codes and standards. Including
re-rated construction.
b. Su󰀩cient air is needed for power combustion and exhausting of gases through the ue (chimney) of fuel burning equipment to prevent
back-drafting. Follow the heating equipment manufacturer’s guideline and safety standards such as those published by the National Fire
Protection Association (NFPA) and the American Society for Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) and the
local code authorities.
c. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.
d. Ducted fans must always vent to the outdoors.
e. NEVER place a switch where it can be reached from a tub or shower.
f. Make sure the power is o󰀨 before installing, wiring or maintenancing.
WARNING
TO REDUCE THE RISK OF FIRE, USE ONLY METAL DUCTWORK.
CAUTION
To reduce risk of re and to properly exhaust air outside - Do not vent exhaust air into spaces within walls, ceilings,
attics, crawl spaces or garages. Not for use over an outdoor grill.

Important Safety Notice
3
OPERATION
Always leave safety grilles and lters in place. Without these components, operating blowers could catch onto hair, ngers and loose
clothing.
The manufacturer declines all responsibility in the event of failure to observe the instructions given here for installation, maintenance
and suitable use of the product. The manufacturer further declines all responsibility for injury due to negligence and the warranty of the
unit automatically expires due to improper maintenance.
*NOTE: Please check www.zephyronline.com for revisions before doing any custom work.
ELECTRICAL REQUIREMENTS
Important:
Observe all governing codes and ordinances.
It is the customer’s responsibility:
- To contact a qualied electrical installer.
- To assure that the electrical installation is adequate and in conformance with National Electrical Code, ANSI/NFPA 70 latest edition*
or CSA standards C22.1-94, Canadian Electrical Code, Part 1 and C22.2 No.0-M91 - latest edition** and all local codes and
ordinances.
If codes permit and a separate ground wire is used, it is recommended that a qualied electrician determine that the ground path is
adequate.
Do not ground to a gas pipe.
Check with a qualied electrician if you are not sure the range hood is properly grounded.
Do not have a fuse in the neutral or ground circuit.
*National Fire Protection Association Batterymarch Park, Quincy, Massachusetts 02269
** CSA International 8501 East Pleasant Valley Road, Cleveland, Ohio 44131-5575
This appliance requires a 120V 60Hz electrical supply and connected to an individual properly grounded branch circuit protected by
a 15 or 20 ampere circuit breaker or time delay fuse. Wiring must be 2 wire with ground. Please also refer to Electrical Diagram on
product.
A cable locking connector (not supplied) might also be required by local codes. Check with local requirements, purchase and install
appropriate connector if necessary.
AK7736AS, AK7742AS - 286 Watts, 4Amps
AK7748AS - 299 Watts, 4.2 Amps
Power consumption shown above is the default power specs. Hoods with Zephyr’s proprietary Airow Control Technology (ACT)
enabled will consume less power. See wiring diagram at the end of this manual for more information.
FEDERAL COMMUNICATION COMMISSION INTERFACE STATEMENT
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in
a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment o󰀨 and on, the user is encouraged to try to correct the interference by one of the following measures:
. Reorient or relocate the receiving antenna.
. Increase the separation between the equipment and receiver.
. Connect the equipment into an outlet on a circuit di󰀨erent from that to which the receiver is connected.
. Consult the dealer or an experienced radio/TV technician for help
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARNING:
Prop. 65Warning for California Residents

4
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List of Materials
4
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List of Materials
4
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MODELS: AK7736AS, AK7742AS, AK7748AS
PARTS SUPPLIED
6# x 1” (4)
M4 x 8 (14)
M4 x 10 (16) 3/16*7/8 (4)
6# x 1-1/2” (4) 6# x 2” (4)
1 - Hood
4 - Duct covers, 2 upper & 2 lower
2 - Support frames, 1 upper & 1 lower
2- Angled support brackets
1- Middle support frame
4 - Baffle filters, AK7736AS & AK7742AS
6 - Baffle filters, AK7748AS
2 - LED light bulbs, AK7736AS & AK7742AS
4 - LED light bulbs, AK7748AS
1 - 8 in. round starting collar (for single blower ducting)
1 - Paper ceiling template
1 - Hardware package
PARTS NOT SUPPLIED
- Ducting, conduit and all installation tools
- Cable connector (if required by local codes)
- Duct cover extension accessory (Z1C-0077 - 36”, 42”)
- Duct cover extension accessory (Z1C-0177 - 48”)
- Dual blower kit (PBD-1300A)
M4 x 8 (6)
M4 x 8 (12) 3/16*7/8 (4)
List of Materials
(1) M4 x 12
safety screw
6# x 1” (6) 6# x 1-1/2” (6) 6# x 2” (6)
5x24mm Washers (6)Wire Caps(3) Light Bulb Removal
Suction Cup (1)
3/16 x 1/4” (4)
*M4 x 8 (12) screws are pre-installed into the support frame

5
Duct pieces Total
Equivalent number
length x used =
3-1/4” x 10”
Rect.,
straight
1 Ft. x ( ) =Ft.
3-1/4” x 10”
Rect.to
6” round
transition
5 Ft. x ( ) =Ft.
3-1/4” x 10”
Rect.to
6” round
transition
900 elbow
20 Ft. x ( ) =Ft.
6”, 7”, 8”, 10”
Round,
900
15 Ft. x ( ) =Ft.
6”, 7”, 8”, 10”
Round,
450
9 Ft. x ( ) =Ft.
Ft.
6”, 7”, 8”, 10”
Round,
straight
1 Ft. x ( ) =Ft.
Subtotal column1 =
Duct pieces Total
Equivalent number
length x used =
6”, 7”, 8”, 10”
Round, wall
cap with
damper
30 Ft. x ( ) =Ft.
Ft.
Ft.
Ft.
6”, 7”, 8”, 10”
Round
roof cap
30 Ft. x ( ) =Ft.
Subtotal column2 =
Subtotal column1 =
Total ductwork =
MaximumDuct Length:For satisfactory air movement,
the total duct length
should not exceed 100 equivalent feet.
6” roundto
3-1/4” x 10”
rect.
transition
1 Ft. x ( ) =Ft.
6” roundto
3-1/4” x 10”
rect.
transition
900 elbow
16 Ft. x ( ) =Ft.
7” roundto
3 1/4” x 10”
rect.
transition
8 Ft. x ( ) =Ft.
7” roundto
3-1/4” x 10”
rect.
transition
900 elbow
23 Ft. x ( ) =Ft.
elbow
elbow
7” to 6” or
8” to 7” Round
tapered
reducer
25 Ft. x ( ) =Ft.
3-1/4” x 10”
Rect.900
elbow
15 Ft. x ( ) =Ft.
3-1/4” x 10”
Rect.450
elbow
9 Ft. x ( ) =Ft.
3-1/4” x 10”
Rect.900
flat elbow
24 Ft. x ( ) =Ft.
3-1/4” x 10”
Rect.
wallcap
with damper
30 Ft. x ( ) =Ft.
Ft. x ( ) =Ft.
15
6”, 7“, 8”
Round
in-line
damper
Installation – Ducting Calculation Sheet
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List of Materials
4
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MODELS: AK7736AS, AK7742AS, AK7748AS
PARTS SUPPLIED
6# x 1” (4)
M4 x 8 (14)
M4 x 10 (16) 3/16*7/8 (4)
6# x 1-1/2” (4) 6# x 2” (4)
1 - Hood
4 - Duct covers, 2 upper & 2 lower
2 - Support frames, 1 upper & 1 lower
2- Angled support brackets
1- Middle support frame
4 - Baffle filters, AK7736AS & AK7742AS
6 - Baffle filters, AK7748AS
2 - LED light bulbs, AK7736AS & AK7742AS
4 - LED light bulbs, AK7748AS
1 - 8 in. round starting collar (for single blower ducting)
1 - Paper ceiling template
1 - Hardware package
PARTS NOT SUPPLIED
- Ducting, conduit and all installation tools
- Cable connector (if required by local codes)
- Duct cover extension accessory (Z1C-0077 - 36”, 42”)
- Duct cover extension accessory (Z1C-0177 - 48”)
- Dual blower kit (PBD-1300A)
M4 x 8 (6)
M4 x 8 (12) 3/16*7/8 (4)
List of Materials
(1) M4 x 12
safety screw
6# x 1” (6) 6# x 1-1/2” (6) 6# x 2” (6)
5x24mm Washers (6)Wire Caps(3) Light Bulb Removal
Suction Cup (1)
3/16 x 1/4” (4)
*M4 x 8 (12) screws are pre-installed into the support frame

Installation – Mounting Height & Clearance
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DUCTING
A minimum of 8” round duct must be used to
maintain maximum air ow e󰀩ciency for single
internal blower and 10” round duct for dual internal
blower.
Always use rigid type metal ducts only. Flexible
ducts could restrict air ow by up to 50%.
Also use calculation (on page 5) to compute total
available duct run when using elbows, transitions
and caps.
ALWAYS, when possible, reduce the number or
transitions and turns. If long duct run is required,
increase duct size.
If turns or transitions are required; install as far
away from hood duct output and as far apart,
between the two as possible.
Minimum mount height between range top to hood
bottom should be no less than 24”.
Maximum mount height should be no higher than
36”.
It is important to install the hood at the proper
mounting height. Hoods mounted too low could
result in heat damage and re hazard; while hoods
mounted too high will be hard to reach and will
lose its performance and e󰀩ciency.
If available, also refer range manufacturer’s height
clearance requirements and recommended hood
mounting height above range.
SHIPMENT / INSTALLATION:
• Please fully inspect unit for damage before
installation.
• If the unit is damaged in shipment, return the
unit to the store in which it was bought for
repair or replacement.
• If the unit is damaged by the customer, repair
or replacement is the responsibility of the
customer.
• If the unit is damaged by the installer (if other
than the customer), repair of replacement must
be made by arrangement between customer
and installer.
min. A
max. B
Standard Extension
Hood Heights DuctCover DuctCover
minimum ducted (A) 33” 49“
maximum (B) 50” 78”
Ceiling Heights
minimum ducted (C) 93”(7’9”) 109“ (9’1”)
maximum (D) 122”(10’2“) 148”(12’4”)
36”
24” min.
36” max.
min. C
max. D

7
WARNING FIRE HAZARD
NEVER exhaust air or terminate duct work into spaces between walls, crawl spaces, ceiling, attics or garages.
All exhaust must be ducted to the outside.
Use rigid metal ductwork only.
Fasten all connections with sheet metal screws and tape all joints with certied Aluminum Tape or Duct Tape.
Some Ducting Options
Installation – Ducting Options
side wall cap
w/ gravity damper
Soffit or crawl space
Roof Pitch w/
Flashing & Cap

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Installation – Hood Specications
FRONT SIDE
TOP of HOOD TOP SUPPORT FRAME
(top view)
35 15/16” (36”)
41 15/16” (42”)
4715/16” (48”)
1715/16” (36”, 42“)
21 5/8” (48”)
4”
35/16”
16 1/4”
27 15/16”
14 5/16”
31 5/8”
Standard
Min. - 33”
Max. - 50“
Z1C-0077 (36”, 42“)
Z1C-0177 (48”)
Min. - 49”
Max. - 78”
C/L
C/L
77/8”
18” (36”)
20 15/16” (42”)
2315/16” (48”)
1 1/8”
14 9/16”
11 7/16”
2 3/16
”
13 1/4” (36”, 42“)
16 15/16” (48”)
6 15/16” (36”, 42“)
8 3/4” (48”)
6 5/16” (36”, 42“)
8 3/16” (48”)
Front Side

9
1
2
Ceiling Joists
Wood Blocking
Top Support Frame
Support Frame Arm
Bottom Support Frame
Hood Body
3
Mounting Screws
(pre-installed)
4
Installation – Mounting the Hood
1. Determine mounting location on ceiling and temporarily tape paper template (included with the hood) to
the ceiling. Cut out internal shaded area of template to allow the ducting and electrical to pass through.
If necessary, add wood blocking (min. 2” x 4”) to ceiling joists located behind the drywall to reinforce the
mounting location*. (FIG. A1) Secure (2) M6 x 2” wood screws with washers to points A and B of the paper
template (FIG. B). Do not completely tighten screws, leave approx. 1/4” exposed.
2. Remove screws securing top and bottom support frames together. Adjust support frame to accomodate the
desired hood height and re-assemble the frame using the previously removed screws (4 screws for each
support frame arm). (FIG. A3)
*Hood is intended to be mounted to a nished ceiling.
CAUTION: At least two installers are
required
due to the weight and size of the
hood.
!
FIG. A
XP022220
A
B
Cut-Out Shaded Area
FIG. B
FRONT

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Duct Cover Standard Frame
Assembly Instructions
1.
2.
1/2 bottomtop
3.
FIG. F
Bottom Support Frame
(secures to top of blower housing)
Key Holes
front - facing controls
back
FIG. E
3. Attach square support bracket inside the support frame assembly. The placement of the square support bracket should
preferably be aligned in the middle where the top and bottom frame intersect (FIG. C1) Install (8) M4 x 8 screws to
secure the square support bracket onto the frame. Mount diagonal support brackets onto the support frame assembly
facing away from each other in a crossed formation (FIG. C2). The diagonal support brackets have a ledge on the side.
During installation, mount the diagonal support brackets with the ledge facing inwards to the unit (FIG C3). Install (4) M4
x 8 screws to secure the diagonal support brackets onto the frame.
4. Lift support frame assembly up to the ceiling making sure the word “front” on the top support frame faces the front of the
hood where the controls will be located (FIG. D). The key holes on the top support frame should cover the wood screws
previously installed in the ceiling. Slide support frame towards narrow end of key holes to lock the frame in place. Install
the last (4) M6 x 2” wood screws with washers into the four remaining holes of the top support frame to secure it to the
ceiling. (2) M6 x 2” wood screws with washers are installed on the corners and the other (2) M6 x 2” wood screws are
installed on the front and rear long sides of the support bracket (FIG. D). Tighten all screws.
5. Install the (4) 3/16 x 7/8 mounting screws on the top four corners of the unit body (FIG. A4). Lift hood and align the
mounting screws with the (4) key holes on the Bottom of Support Frame (FIG. E). Slide hood towards the narrow end of
key holes to lock into place. Hand tighten each of the (4) screws with a screwdriver to secure hood to Bottom Support
Frame. Further secure bottom support frame to unit body by one M4 x 12 safety screw (FIG. F).
Installation – Mounting the Hood
FIG. C
FIG. D
Top Support Frame
Side
Front

11
Installation – Mounting the Hood
1
Top Duct Covers
Top Support Frame
Bottom Duct Covers
Bottom Support Fram
e
6. Remove tape securing electronics mounting bracket to hood and reposition electronics mounting bracket
with (2) M4 x 8 screws (FIG. G). Install electrical and duct work. A cable lock, not supplied, might be
required by local codes (FIG. G). Seal duct work with aluminum duct tape.
7. Power up hood, verify all functions and check for leaks around duct tape.
8. Assemble Top Duct Covers (with louver holes) together over Top Support Frame, secure Top Duct Covers
together by magnetic strips.
9. Secure Top Duct Covers to Top Support Frame by using (4) 3/16 x 1/4” screws (2 screws for each Top Duct
Cover). (FIG. H).
10. Assemble Bottom Duct Covers together over Top Duct Covers and secure together by magnetic strips.
Bottom Duct Covers should rest on top of the Hood Body.
FIG. H
Cable Lock
Front
Side
Cable Lock
A cable locking connector (not
supplied) might be required by
local codes. Check with local
requirements and codes, purchase
and install appropriate connector if
necessary.
FIG. G
WARNING: Electrical wiring must be done by a qualified person(s) in
accordance
with all applicable codes and standards. This range hood must
be
properly
grounded.Turn off electrical power at service entrance before wiring
.
!

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Installation – PBD-1300A Dual Blower Ducting
5. Position dual blower inside hood body as
shown. Be sure to tuck dual blower plate into
blower plate tabs. Secure dual blower by (4)
screws previously removed from step 2.
6. Attach 10” round blower collar to top of hood
body by (4) M4 x 8 screws. Connect blower
wire extension cable to new blower and connect
plugs from each blower to female plugs behind
switch panel.
1. Disconnect blower plug and white and black
power cables. 2. Remove (4) screws from interior of hood body
attaching single blower plate to top of hood
body. Remove single blower and single blower
plate.
3. Remove (4) screws attaching single blower to
single blower plate. 4. Attach single blower to dual blower plate by (4)
previously removed screws from step 3.
This range hood is equipped standard with a single blower vertical duct option. To convert from single blower
vertical ducting to dual blower vertical ducting please following the instructions below.

13
Features & Controls - Electronic LCD Controls
1. Power / Delay Off
Power Button Function
On/Off button will turn power on and off for entire hood (fan and lights). The hood will remember the last speed and light level it
was turned off at.
Delay Off Button Function
With the fan on, press and hold the On/Off button for three seconds.The fan will change to speed 1 and the 10 minute delay off
timer will start.A countdown timer will show on the display indicating the time left until the fan and lights automatically turn off.
Pressing the On/Off button while the Delay Off Function is enabled will turn the hood off and cancel the Delay Off Function.
ACT™Verification
Airflow Control Technology (ACT™) allows the installer to set the maximum blower CFM to align with local codes and regulations.
To verify the maximum blower CFM:
With hood off, hold the On/Off button for three seconds.The Display will show if ACT™ is disabled and set to the maximum
CFM or ifACT™ is enabled and set to one of the restricted maximum CFM levels of 590, 390 or 290.
2. Speed Selection
The 6 speed levels are selected by pressing Fan - to decrease and Fan + to increase speed levels. The Display indicates the
speed level selected.
ACT™Enabled Speed Selections
WhenACT™ is enabled, the number of fan speeds will be reduced to Maximum 3 speeds.
3. Lights On/Dim/Off
Switch lights on by pressing Lights button once, press a second time to dim and again to shut off lights.
4. Display
The display window indicates speed levels and features such as baffle filter clean reminder, delay off and clean air indicator.
Filter Clean Reminder
After 30 hours of fan usage the words “Clean grease filters” will show on the Display indicating it is time to clean the filters.
To Reset: With hood off, hold the Fan - button for 3 seconds until the display words “Clean grease filters” turns off
CleanAir
CleanAir is a feature that turns the fan on every 4 hours for 10 minutes to remove stagnant air in the kitchen.
To enable CleanAir Function:
With hood off, hold the Fan - button and Fan + button simultaneously for three seconds. The words “CleanAir Function
Activated” will illuminate and the fan will turn on speed 1 for 10 minutes.After 10 minutes the fan will turn off and the 4 hour
timer will begin.
To disable CleanAir Function:
With hood off, hold the Fan - button and Fan + button simultaneously for three seconds. The words “CleanAIr Function
Deactivated” will illuminate indicating the function has been disabled.
When the Clean Air Function is enabled the fan will turn on speed 1 for 10 minutes every 4 hours of non fan usage.After 10
minutes the fan will turn off and the 4 hour timer will reset.
If the user changes the fan speed while the Clean Air Function is in use, the CleanAir Function will stop. If the user presses the
On/Off button at any time the 4 hour CleanAir timer will reset.
Optional Remote Control Pairing
To create a unique link between your hood and optional remote control please follow these steps.
With Hood off, press and hold the Lights button until the Display shows the words “Remote Pairing...” then press any button on
the remote, the Display will then show the words “Remote Paired” indicating the remote control pairing is complete.
Power / Delay Off
Adjust 6 Speed Levels
Display
Lights On/Dim/Off

14
RF REMOTE MAINTENANCE:
Clean the remote control using non abrasive detergents
Follow instructions below for replacing battery.
Using a small at head screwdriver, raise the cover of the battery
door (A) in order to access the battery compartment. FIG. 2.
Remove the battery and replace with battery type A23 12V.
Negative end of battery should face the spring inside the remote.
Re-install battery door and recycle old battery.
RF REMOTE FEATURES:
The RF remote control is equipped with a magnet on the back for easy
storage. The remote may be placed on any magnetic surface such as a
refrigerator or the Zephyr remote holder, FIG. 1. The remote holder can
be inserted into a standard electrical outlet for easy storage. Note: The
remote holder does not charge the RF remote.
Maximum remote control communication distance is 15 feet from the hood.
REMOTE PAIRING: To create a unique link between your hood and remote control please follow these steps:
1. With hood o󰀨, press and hold the “lights” button on the hood until “Remote Pairing” shows on the display screen.
2. Press the any button on the remote, the dispaly will show “Remote Paired” indicating the pairing is complete.
RF REMOTE FUNCTIONS:
FIG. 1
FIG. 2
Blower On / Speed Selection
Press to power on blower and cycle through all six blower speeds.
Blower On / Power Off
By pressing , the blowers will power on at the last speed setting. Press
again and the entire hood will power off, including lights.
Delay Off
Lights On / Dim / Off
Switch lights On by pressing once, again to dim and again to switch Off.
Blower On/
Speed Selection 1
1
2
3
4
Blower On/
Power Off
2
10 Min Delay Off 3Lights On/Dim/Off
4
By pressing , the blower and lights will enter Delay Off mode.
The blower will
change to speed 1 and shut down after 10 minutes.
A
-
+
FCC Caution: To assure continued compliance, any changes or modifications not expressly approved by the party responsible for compli-
ance could void the user’s authority to operate this equipment. (Example - use only shielded interface cables when connecting to computer
or peripheral device. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions. (1) This device
may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause
undesired operation.
THE RF REMOVE CONTROL IS AN OPTIONAL
ACCESSORY NOT INCLUDED WITH THE HOOD AND
MUST BE PURCHASED SEPARATELY
Features & Controls – Optional Remote Control

Maintenance – Cleaning, Filter Removal & Lights
15
SURFACE MAINTENANCE:
Do not use corrosive detergents, abrasive detergents or oven cleaners.
Do not use any product containing chlorine bleach or any product containing chloride.
Do not use steel wool or abrasive scrubbing pads which will scratch and damage surface.
Cleaning Stainless Steel
Clean periodically with warm soapy water and clean cotton cloth or micro ber cloth. Always rub in the direction of the stainless
steel grain. To remove heavier grease build up use a liquid degreaser detergent.
After cleaning use a non-abrasive stainless steel polish/cleaners, to polish and bu󰀨 out the stainless luster and grain. Always
scrub lightly, with clean cotton cloth or micro ber cloth and bu󰀨 in the direction of the stainless steel grain.
Stainless Steel Ba󰀪e Filters
The stainless steel bafe lters are intended to trap residue and grease from cooking. Although the lters should never need
replacing, they are required to be cleaned every 30 days or more often depending on cooking habits.
Filters may be placed in dishwasher at low heat or soaked in hot soapy water Dry lters and re-install before using hood.
Removing Ba󰀪e Filters
1. Push lter toward back of range hood using handles.
2. Pivot front of lter downward.
3. Remove lter by pulling away from hood.
4. Repeat steps for the lters facing the other way.
Cleaning the Grease Tray
The grease tray is intended to catch residue and grease that may drip from the ba󰀪e lters. The grease tray should be cleaned
when ba󰀪e lters are cleaned. Clean the grease tray by soaking in hot soapy water and gently scrubing any residue o󰀨 with a
soft terry cloth. Dry grease tray and re-install before using hood.
REPLACING LIGHT BULBS
Make sure all power is turned o󰀨.
Remove by turning bulb counter clockwise. Note: Bulb does not unscrew; it turns 60 degrees, stops and falls out. If bulbs are
di󰀩cult to turn due to prolonged use, rmly attach a glass suction cup approximately the diameter of the bulb or use a rubber/
latex glove and turn counter clockwise. FIG. I.
Directional Lighting
The light bulbs can be tilted forwards and backwards to better direct light over your cooking surface. FIG. J.
Replacement bulbs are available to purchase directly from Zephyr. Purchase online at http://store.zephyronline.com or call us at
1.888.880.8368
1
2
3
1
2
3
FIG. I FIG. J

16
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Troubleshooting
TROUBLESHOOTING PROCEDURES
Issue Cause What to do
After installation,
the unit doesn’t
work.
1. The power source is not turned ON. 1. Make sure the circuit breaker and the unit’s
power is ON.
2. The power line and the cable locking connector
is not connecting properly. 2. Check the power connection with the unit is connected properly.
3. The switch board and control board wirings are
disconnected. 3. Make sure the wirings between the switch board and control board are connected
properly.
4. The wires on control board are loose. 4. Make sure the wires on the control board are
connected properly.
5. The switch board or control board is defective. 5. Change the switch board or control board.
Light works, but
the blower is not
turning.
1. The blower is defective, possible seized. 1. Change the blower.
2. The thermally protected system detects if the
blower is too hot to operate and shuts the blower
down.
2. The blower will function properly after the
thermally protected system cool down.
3. Damaged capacitor. 3. Change the capacitor.
4. The blower wire is not connected. 4. Make sure the blower wire is plugged into the
molex connector.
The unit is
vibrating. 1. The blower is not secure in place. 1. Tighten the blower in place.
2. Damaged blower wheel. 2. Change the blower.
3. The hood is not secured in place. 3. Check the installation of the hood.
The blower is
working, but the
lights are not.
1. Defective halogen bulb. 1. Change the halogen bulb.
2. The light bulb is loose. 2. Tighten the light bulb.
3. The light bulb plug is disconnected. 3. Check the light bulb plug connection.
The hood is
not venting out
properly.
1. The hood might be hanging to high from the
cook top.
1. Adjust the distance between the cook top and
the bottom of the hood within 24” and 34”
range.
2. The wind from the opened windows or opened
doors in the surrounding area are a󰀨ecting the
ventilation of the hood.
2. Close all the windows and doors to eliminate
the outside wind ow.
3. Blockage in the duct opening or duct work. 3. Remove all the blocking from the duct work or
duct opening.
4. The direction of duct opening is against the wind. 4. Adjust the duct opening direction.
5. Using the wrong size of ducting. 5. Change the ducting to correct size.
Metal lter is
vibrating. 1. Metal lter is loose. 1. Change the metal lter.
2. Spring clip is broken. 2. Change the spring clip.
The blower turns
on by itself. 1. The clean air function has been enabled turning the blower on every 4 hours. 1. Disable the clean air function by following the steps on page 13.

17
Airow Control Technology (ACT™)
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.
ACT™ enables the installer to easily set the maximum blower speed to one of two most commonly specied CFM
levels; 590, 390 or 290 CFM. The usage ofACT™ may not be necessary for your installation. Please check your
local codes for CFM restrictions.
By default the maximum blower CFM is set to 750.
ACT™ NOT AVAILABLE WITH 1300 CFM DUAL INTERNAL BLOWER OPTION
To enable ACT™
1. Before hood installation, gain access to PC board by following the steps shown in FIG. K .
2. Change plastic jumper positioning as shown in FIG. L 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 o󰀨, hold the On/O󰀨 button for three seconds. The Display will show if ACT™ is disabled and set to the
maximum CFM or if ACT™ is enabled and set to one of the restricted maximum CFM levels of 590, 390 or 290.
There should also be a foil label located inside the hood body near the wiring diagram that indicates the blower CFM.
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.
!
1 3 5 7
2 4 6 8
1 3 5 7
2 4 6 8
1 3 5 7
2 4 6 8
1 3 5 7
2 4 6 8
Max. Blower CFM 750
Jumper 7-8
DEFAULT POSITION
Max. Blower CFM
590
Jumper 5-6 Max. Blower CFM
390
Jumper 3-4 Max. Blower CFM
290
Jumper 1-2
1 3 5 7
2 4 6 8
PC Board
Jumper Pins Plastic
Jumper
FIG. K
FIG. L
Models: AK76
- Locate PC board box on top of blower housing.
- Remove 4 screws attaching PC board cover.
ACT™ Conversion

18
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Wiring Diagrams
ACT 590 CFM - Fan Max. 175W @ 2.6A
ACT 390 CFM - Fan Max. 94W @ 1.4A
ACT 290 CFM - Fan Max. 63W @ 0.9A

19
DESCRIPTION PART#
Replacement Parts
LED Light Bulb MR16 (GU10) 6W (each) Z0B0040
Ba󰀪e Filter (each) 50210036
Optional Accessories
Duct Cover Extension (36”, 42”) Z1C-0077
Duct Cover Extension (48”) Z1C-0177
Dual Internal Blower PBD-1300A
Make-Up Air Kit (Single Blower) MUA008A
Make-Up Air Kit (Dual Blower) MUA010A
To order parts, visit us online at http://store.zephyronline.com or call us at 1.888.880.8368
List of Parts and Accessories