Zephyr Milano Wall ZMI-M90BS Installation guide

Use, Care, and Installation Guide
www.zephyronline.com
Model number:
Serial Number:
AUG15.0801 © Zephyr Ventilation LLC.
For use with models of serial numbers beginning with 24
Airflow Control Technology
TM
C
+
Milano Wall
ZMI-M90BS
ZMI-M90BG

www.zephyronline.com

1
SAFETY NOTICE................................................................. 2-3
LIST OF MATERIALS....................................................... 4
INSTALLATION
Ducting Calculation Sheet....................................... 5
Mounting Height & Clearance................................ 6
Ducting Options........................................................... 7
+RRG6SHFL¿FDWLRQV................................................... 8
Mounting the Range Hood...................................... 9
Ductless Recirculating.............................................. 10
FEATURES & CONTROLS
Touch Controls............................................................. 11
User Interface............................................................... 12
MAINTENANCE
Hood and Filter Cleaning......................................... 13
TROUBLESHOOTING................................................................ 14
FAN CURVE DIAGRAMS......................................................... 15-16
WIRING DIAGRAM...................................................................... 17
LIST OF PARTS AND ACCESSORIES.............................. 18
WARRANTY.................................................................................... 19
PRODUCT REGISTRATION.................................................... 20
Table of Contents

Important Safety Notice
READ AND SAVE THESE INSTRUCTIONS
2
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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 off 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.
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d. Use proper pan size. Always use cookware appropriate for the size of the surface element.
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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:
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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.
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WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
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,QFOXGLQJ¿UHUDWHGFRQVWUXFWLRQ
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back-drafting. Follow the heating equipment manufacturer’s guideline and safety standards such as those published by the National
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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 off before installing, wiring or maintenancing.

Important Safety Notice
3
WARNING
TO REDUCE THE RISK OF FIRE, USE ONLY METAL DUCTWORK.
CAUTION
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attics, crawl spaces or garages.
OPERATION
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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:
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- 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.
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ground path is adequate.
Do not ground to a gas pipe.
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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.
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and install appropriate connector if necessary.
ZMI-M90BS - 215 Watts, 4 Amps
ZMI-M90BG - 215 Watts, 4 Amps
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4
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(3) Wire Nuts
(3) M6 x 1-1/2” (3) M6 x 1” (2) M3.5 x 8
PARTS NOT SUPPLIED
- Ducting, conduit and all installation tools
- Cable connector (if required by local codes)
- Duct cover extension accessory
- Recirculating kit accessory
HARDWARE PACKAGE CONTENTS
MODELS: ZMI-M90BS, ZMI-M90BG
1 - Hood body with internal blower
1 - Aluminum mesh filter
1 - Duct cover assembly, top and bottom
1 - Duct cover wall bracket
2 - 6W LED light bulbs
1 - 8” round damper, pre-installed
1 - Hardware package
1 - Canopy , glass or stainless steel
PARTS SUPPLIED
(1)ø12 OD / ø5 ID
Washers
(4) 3/16 x 1/4 pan-head
machine screws
List of Materials

5
Duct pieces To t a l
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 To t a l
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

Installation – Mounting Height & Clearance
6
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DUCTING
A minimum of 8” round duct is recomended to
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Always use rigid type metal ducts only. Flexible
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Use calculation worksheet to compute total duct
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ALWAYS, when possible, reduce the number of
transitions and turns. If a long duct run is required,
increase duct size from 8” to 10”.
If turns or transitions are required: Install as far
away from duct opening and as far apart between
the two transitions as possible.
Minimum mount height between range top to hood
bottom should be no less than 26”.
Maximum mount height should be no higher than
34”.
It is important to install the hood at the proper
mounting height. Hoods mounted too low could
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mounted too high will be hard to reach and will
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If available, also refer to range manufacturer’s
height clearance requirements and recommended
hood mounting height above range. Always check
your local codes for any differences.
Duct cover extension kit available for ceiling
heights up to 12 feet. Turn to page 18 for part
number and ordering information.
DAMAGE-SHIPMENT / INSTALLATION:
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installation.
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unit to the store in which it was bought for
repair or replacement.
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or replacement is the responsibility of the
customer.
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be made by arrangement between customer
and installer.
26” min.
34” max.
min. A
min. B
max. C
min. D
min. E
max. F
Standard Extension
Hood Heights Duct Cover Duct Cover
minimum ducted (A) 26-1/2” 42“
minimum recirculating (B) 31” 46“
maximum (C) 50” 80”
Ceiling Heights
minimum ducted (D) 88-1/2” (7’ 4-1/2) 104“ (8‘ 8”)
minimum recirculating (E) 93” (7’ 9”) 108“ (9‘)
maximum (F) 120” (10’ ) 150” (12’ 6”)
36”

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, unless using the recirculating option.
Use single wall rigid Metal ductwork only.
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Some Ducting Options
Installation – Ducting Options
side wall cap
w/ gravity damper
Soffit or crawl space
Roof Pitch w/
Flashing & Cap
ductless
recirculating
side wall cap
w/ gravity damper
(blower
housing)
(blower
housing)
(blower
housing)
(blower
housing)

8
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Installation – +RRG6SHFL¿FDWLRQV
side of hood
front of hood
top of hood
STANDARD
min. ducted - 26 1/2”
min. recirc. - 31”
max. - 50”
Z1C-01MI
min. ducted - 42”
min. recirc. - 46”
max. - 80”
13 5/8”
20 1/2”
12 13/16”
23 15/16”
6 3/8”
18 1/16”
8 3/8”
35 3/16”
4 1/8”
5 3/4”
AC In
7 15/16”

9
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2. Plum and mark center line.
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tighten all the way. Note: Wood blocking may need to be
added behind the drywall if no studs are present. Wall
anchors may also be used but check local codes for
compliance. Failure to use suitable wall anchors and
screws to hold the weight of the hood could result in
personal injury or damage to cooking surface or counter.
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bracket to hood. Reposition electronics mounting bracket as
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previously removed screws.
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9. Hang hood onto the mounting screws and hand tighten each
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10. Center and attach duct cover mounting bracket to wall just
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11. Install electrical and duct work. Seal duct work with aluminum
duct tape. Re-install electrical junction box with cable lock and
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12. Power up hood and check for leaks around duct tape.
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M3.5 x 8 screws.
14. Place canopy over hood body and secure it to hood body using
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* If using hood in recirculating mode you must secure the air diverter
plate onto wall before installing duct work and duct covers. Turn
to page 10 for more details.
11 1/4”
18 5/8”
Brackets are
pre-installed
2
26” min
1
CAUTION: At least two installers are
required due to the weight and size of the
hood.
!
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.
!
Installation – Mounting the Hood
Cable Lock
2
1
3
Motor Housing
Cable Lock
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be required by local codes. Check with local
requirements and codes, purchase and install
appropriate connector if necessary.
FIG. A
FIG. B

10
www.zephyronline.com
Ductless recirculation is intended for applications where an exhaust duct work is not possible to be installed.
When converted, the hood functions as a recirculating hood rather than an exhaust hood. Fumes and exhaust
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circulated back within the home.
We recommend toALWAYS exhaust air outside of the home by employing existing or installing new duct
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is not possible should you recourse to converting the hood into a recirculating hood.
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Aluminum Mesh Filter set. Order according to its Part number below. The standardAluminum Mesh Filters
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from cooking for re-circulation.
RECIRCULATING KIT (REQUIRED IF NO DUCTING IS USED)
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Hood Model Part No. Filters in Pkg.
ZMI-M90BG/BS ZRC-00MI 2
1. Purchase recirculating kit per the part number above
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plate. See manual included with recirculating kit for more
detailed instructions.
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),*&
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the controls when set, will elapse and count usage time and
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hours.
Charcoal Filter Replacements
Hood Model Part No. Qty to Order
ZMI-M90BS/BG Z0F-C002 2
'2127:$6+&+$5&2$/),/7(56&KDUFRDO¿OWHUVPD\QHHG
to be changed more often depending on cooking habits.
Installation – Ductless Recirculating
FIG. C

11
Lights On/Dim/Off
Display (speed level, delay off, filter clean/change,clean air)
Adjust 6 Speed Levels
Power / Delay Off
1 Power / Delay Off Button
Power Button Function
- Button will turn power on and off for entire hood (fan and lights).
- Hood will remember the last speed and light level it was turned off at.
(Example: Press Button to turn off hood when on fan speed 4 and high lights. Press Button again and the hood
will turn back on at speed 4 and high lights level.)
Delay Off Button Function
- Press and hold Button for two seconds and the fan will turn on speed 1. The Graphic will illuminate. After five minutes
the fan and lights will automatically turn off.
- Pressing Button while 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 Button for three seconds. The blower CFM will be displayed on the LCD.
2 Speed Selection Button
Fan Speed Decrease Button
- Press this button to decrease fan speed. 6 (burst), 5, 4, 3, 2, 1.
- If fan is On Speed 1 and this button is pressed, fan will power Off.
Fan Speed Increase Button
- Press this button to increase fan speed. Fan On, 1, 2, 3, 4, 5, 6 (burst).
- If hood is Off and this button is pressed, fan will turn On Speed 1.
Burst Mode
- This speed level is intended to be used as a quick burst of air extraction when excess cooking fumes and smoke are
generated. After 3 minutes the fan will automatically change to Speed 5.
3 Lights Button
- Lights are two levels, High and Low.
- From off, press one time for High. LCD will show the words “
lights hi ” for 2 seconds then fade away.
- Press again for Low. LCD will display the words “
lights lo ” for 2 seconds then fade away.
- Press again to power lights off.
clean mesh filter
clean air
replace charcoal filter
Features & Controls - Touch Controls

Features & Controls – User Interface
12
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Mesh Filter Clean Indicator (always enabled)
- After 30 hours of fan usage the Graphic and words “clean mesh filter” will illuminate indicating it is time to clean
the mesh filters. Graphic and words will remain illuminated until reset.
- To reset: With hood off, hold the Button for three seconds, after three seconds the Graphic and words “clean mesh
filter” will turn off and the 30 hour timer will reset.
Charcoal Filter Replace Indicator (disabled by default, must be enabled if recirculating hood)
- To enable Charcoal Filter Replacement Function:
- With hood off, hold Button and Button simultaneously for three seconds. The Graphic will illuminate for
three seconds indicating the Charcoal Filter Replacement Function is enabled.
- To disable Charcoal Filter Replacement Function:
- With hood off, hold Button and Button simultaneously for three seconds. The Graphic will be
illuminated then turn off indicating the Charcoal Filter Replacement Function is disabled.
- After 120 hours of fan usage the Graphic and words “replace charcoal filter” will illuminate indicating it is time to
replace the charcoal filter. Graphic and words will remain illuminated until reset.
- To reset: With hood off, hold the Button for three seconds, after three seconds the Graphic and words “replace
charcoal filter” will turn off and the 120 hour timer will reset.
Clean Air Indicator
- Clean Air is a feature that turns the fan on every 4 hours for 10 minutes to remove stagnant air in the kitchen.
- To enable Clean Air Function:
- With hood off, hold the Button and Button simultaneously for three seconds. The Graphic and
words “clean air” 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.
- Graphic will remain on when Clean Air Function is enabled, even if fan is not on.
- To disable Clean Air Function:
- With hood off, hold the Button and Button simultaneously for three seconds until Graphic
turns off.
- 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 words “clean air” will turn off but the Graphic
will remain illuminated. If the user presses the Button at any time the 4 hour clean air timer will reset.

13
SURFACE MAINTENANCE:
Clean the hood surface periodically with hot soapy water and clean cotton cloth. Do not use corrosive or
abrasive detergent, or steel wool/scouring pads which will scratch and damage surface.
For heavier soil use liquid degreaser.
After cleaning it is recommended that you use non-abrasive stainless steel polish/cleaners, to polish and
buff out the stainless luster and grain.Always scrub lightly, with clean cotton cloth, and with the grain.
Do not use any product containing chlorine bleach. Do not use “orange” cleaners.
Aluminum Mesh Filters
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cooking. They need not be replaced on a regular basis but are required to be kept clean.
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may need to be cleaned more depending on cooking habits.
Remove and clean by hand or in dishwasher on low heat. Spray degreasing detergent and leave to soak if
heavily soiled.
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Removing Aluminum Mesh Filters
1. Push in on spring loaded handle
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6KRXOG¿OWHUVZHDURXWGXHWRDJHDQGSURORQJHGXVH
replace with following part number:
Hood Model: Part No. Qty to Order
ZMI-M90BS/BG 50200044 1
Maintenance – Hood and Filter Cleaning

14
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Troubleshooting
TROUBLESHOOTING PROCEDURES FOR MILANO WALL
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 wires on the control board are loose. 3. Make sure the wires on the control board are
connected properly.
4. The switch board and control board wirings are
disconnected. 4. Make sure the wirings between the switch board and 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
blower is not
turning.
1. The blower cable is disconnected. 1. Check all wirings from the blower to be sure
all cables are connected properly.
2. The blower is defective, possibly seized. 2. Change the blower.
3. The thermally protected system detects if the
blower is too hot to operate and shuts the blower
down.
3. The blower will function properly after the
thermally protected system cool down.
4. The switch board or control board is defective. 4. Change defective part.
The unit is
vibrating. 1. The motor is not secure in place. 1. Tighten the motor in place.
2. Damaged blower wheel. 2. Replace the blower.
3. The hood is not secured in place. 3. Check the installation of the hood.
The LCD screen
LVÀDVKLQJ 1. The cable between the switch and control board is disconnected. 1. Check the cable connection between the switch and control board.
The unit is
whistling. 7KH¿OWHULVQRWLQWKHFRUUHFWSRVLWLRQ $GMXVWWKH¿OWHUVXQWLOWKHZKLVWOLQJVWRSV
2. The duct pipe connections are not sealed or
connected properly. 2. Check the duct pipe connections to be sure all connections are sealed properly.
The blower is
working, but the
lights are not.
1. Defective LED bulb. 1. Change the LED bulb.
2. The LED bulb wire is loose. 2. Check LED wire connections at the control
board and the LED light bulbs. Reconnect any
loose wires.
The speed levels
of the blower
sound the same.
1. Using the wrong size of ducting. 1. Change the ducting to at least 8” or higher.
2. ACT enabled blower CFM set to 290 or 390
CFM. 2. Noise level distinction between some speeds may be minimal when ACT enabled blower is
set to 290 or 390 CFM.
The hood is
not venting out
properly.
1. The hood might be hanging too high from the
cook top. 1. Adjust the distance between the cook top and the bottom of the hood within 26” and 34”
range.
2. The wind from the opened windows or opened
doors in the surrounding area are affecting the
ventilation of the hood.
2. Close all the windows and doors to eliminate
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3. Blockage in the duct opening or ductwork. 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 at least 8” or higher for
the internal blower.
Mesh Filter is
vibrating.  0HVK¿OWHULVORRVH 1. Make sure the metal clips in the handle are QRWVWXFN2UUHSODFHWKHPHVK¿OWHU
2. Filter spring clip is loose or broken. 8QLQVWDOODQGUHLQVWDOO¿OWHUSXVKXSRQ¿OWHU
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15
Fan Curve Diagrams
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Some local codes limit the maximum amount of CFM a range hood can move. ACT allows you to
control the maximum blower CFM of hoods with Zephyr’s DCBL Suppression System without the need
for expensive make up air kits. ACT enables the installer to easily set the maximum blower speed to
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necessary for your installation. Please check your local codes for CFM restrictions.
By default the maximum blower CFM is set to 715.
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Blower CFM will be displayed on the LCD screen. There should also be a foil label located inside the
hood body near the wiring diagram that indicates the blower CFM.

16
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Fan Curve Diagrams

17
Wiring Diagram
VOLTS HZ MAX AMPS
120 60 4
ZMI-M90BG, ZMI-M90BS
CIRCUIT DIAGRAM
U
U
V
W
V
W
AC-N AC-L
ON/OFF DOWN UP LAMP
5A 250V
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ACT 590 CFM - Fan Max. 130W @ 1.8A
ACT 390 CFM - Fan Max. 70W @ 1A
ACT 290 CFM - Fan Max. 35W @ .55A

18
www.zephyronline.com
DESCRIPTION PART#
Replacement Parts
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$OXPLQXP0HVK)LOWHUHDFK 
Optional Accessories
Recirculating Kit ZRC-00MI
Replacement Charcoal Filter Z0F-C002
Duct Cover Extension Z1C-01MI
To order parts, visit us online at http://store.zephyronline.com or call us at 1.888.880.8368
List of Parts & Accessories