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GE Monogram®
Installation
Instructions
Professional
Vent Hoods
48" Models
ZV881WSS, ZV891YSS
ZV880WSS, ZV890YSS
36" Models
ZV671WSS, ZV681YSS
ZV670WSS, ZV680YSS
30" Models
ZV370YSS,
ZV371YSS
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Design Information
Professional Vent Hoods
These hoods can be installed into a soffit, or
when there is no soffit, they can be installed
directly onto a wall.
48" Wide Models:
ZV881WSS, ZV880WSS – with tapered sides
ZV891YSS, ZV890YSS – with straight sides
Models
Available
36" Wide Models:
ZV671WSS, ZV670WSS – with tapered sides
ZV681YSS, ZV680YSS – with straight sides
48" and 36" wide models are available with
different appearances. Model numbers with
“YSS” have straight sides. Model numbers
ending with “WSS” have sides which taper
inwards from the bottom to the top.
30" Wide Models:
ZV371YSS, ZV370YSS – with straight sides
Before you begin:
should determine the installation height of
the hood and order the correct size duct
cover.
Duct
Cover
Accessories
Decorative duct covers are available in 6" or
12" heights. The duct covers conceal the
ductwork running from the top of the hood to
the ceiling or soffit. Before you begin, you
Be sure to order the duct cover which corre-
sponds to your model.
Optional Accessory Duct Covers
6" Duct Cover
Style
Hood Model
12" Duct Cover
A-Oval
A-Oval
ZV881WSS, ZV880WSS ZX6DC48WSS
ZV671WSS, ZV670WSS ZX6DC36WSS
6"Hx27-3/8"Wx10-1/4"D ZX12DC48WSS 12"Hx27-3/8"Wx10-1/4"D
6"Hx22-1/2"Wx9-3/16"D ZX12DC36WSS 12"Hx22-1/2"Wx9-3/16"D
B-Square
B-Square
B-Square
ZV891YSS, ZV890YSS
ZV681YSS, ZV680YSS
ZV371YSS, ZV370YSS
ZX6DC49YSS
ZX6DC38YSS
ZX6DC30YSS
6"Hx47-7/8"Wx12"D
6"Hx35-7/8"Wx12"D
6"Hx29-7/8"Wx12"D
ZX12DC49YSS
ZX12DC38YSS
ZX12DC30YSS
12"Hx47-7/8"Wx12"D
12"Hx35-7/8"Wx12"D
12"Hx29-7/8"Wx12"D
Optional 6" or 12"
Duct Cover
Style B-Square Shape
Style A-Oval Shape
Optional 6" or 12"
Duct Cover
Duct covers for models:
Duct covers for models:
ZV881WSS, ZV880WSS, ZV671WSS and
ZV670WSS.
ZV891YSS, ZV890YSS, ZV681YSS, ZV680YSS,
ZV371YSS and ZV370YSS.
Transition duct pieces are available for 48"
wide models. These pieces fit over the outlet
on top of the hood. These transition pieces fit
into a soffit or when there is no soffit, a 12"
duct cover should be used.
Accessories
(For 48" Wide
Models Only)
12"
6-5/8"
C
to
L
C
L
8-1/4"
4-3/4"
19-1/4"
10"
8-3/4"
ZX48BY, transition to 10" round for horizontal
exhaust.
18-1/2"
4-1/2"
ZX48AY, transition to 10" round vertical
exhaust.
3
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Design Information
Professional Vent Hoods
These vent hoods must be installed 30" Min.
and 36" Max. above the cooking surface.
Installation will be easier if the vent hood
is installed before the range or cooktop
installation.
The rating plate is located behind filter
cutouts. To verify your model number, remove
filters.
Product
Dimensions
& Clearances
12"
35"
12"
47-7/8"
18"
18"
25"
12"
47-7/8"
ZV881WSS, ZV880WSS
25"
47-7/8"
ZV891YSS, ZV890YSS
12"
35-7/8"
23"
18"
18"
35-7/8"
25"
35-7/8"
25"
ZV681YSS, ZV680YSS
ZV671WSS, ZV670WSS
12"
29-7/8"
18"
29-7/8"
25"
ZV371YSS, ZV370YSS
SOFFIT INSTALLATION
SOFFIT
WALL MOUNT INSTALLATION
Ceiling
30" MIN.
36" MAX."
30" MIN.
36" MAX."
4
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Design Information
Professional Vent Hoods
Installation Framing for adequate support
These vent hoods are heavy. Adequate struc-
tural support must be provided. Hoods must be
secured to vertical studs or to studs in the
soffit.
•Additional studs may be required for a soffit
or wall mount installation. See Step 3, pages 8
and 9.
•We recommend that the vent hood and/or
duct cover be on site before final framing and
wall finishing. This will also help to accurately
locate the ductwork and electrical service.
•Installation will be much easier if the vent
hood is installed before the range or cooktop
below.
Ductwork planning
Advance
Planning
•Determine the exact location of the vent hood.
•Plan the route for venting exhaust to the
outdoors.
•Use the shortest and straightest duct route
possible. For satisfactory performance, duct
run should not exceed 100 feet equivalent
length for any duct configurations.
•Refer to “Duct Fittings” chart to compute the
maximum permissable length for duct runs to
the outdoors. See page 6.
•Use metal ductwork. For 48" models,
3-1/4" x 24" or 10" round. For 30" and 36"
models, 7" to 10' round or 3-1/4" x 12" to
3-1/4" x 24".
•Install a wall cap with damper or roof cap at
the exterior opening.
Decorative Duct Covers
Decorative duct covers are available for all
models. The duct covers conceal the ductwork
running from the top of the hood to the
ceiling or soffit. Duct covers are available in
6" or 12" heights.
You should:
•Determine the installation height from the
cooking surface.
Determine the size of the wall or roof cap for
your model and installation.
•Order the caps and any transitions needed in
advance. See “Duct and Duct Fittings” listed in
your local yellow pages. Be sure to include
equivalent lengths of caps and transitions when
calculating the total duct run. See “Duct
Fittings”, page 6.
– 36" max., 30" min.
•Measure 18" hood height.
48" Wide Model Duct Transitions
•Select 6" or 12" duct cover to meet ceiling or
soffit height.
•Transition duct pieces are available for 48"
wide models. See illustrations of ZX48BY and
ZX48AY transition pieces on page 3.
•Connect the wiring to the house wiring in
accordance with local codes.
WARNING
Electrical
Supply
Warning, for
Personal Safety:
Remove house fuse or open
circuit breaker before beginning
installation.
House wiring location
•The junction box is located on the top of the
hood. See illustrations, page 10 to determine
exact placement.
•Route house wiring through the ceiling, soffit
or back wall as close to the installation location
as possible.
Do not use an extension cord or adapter
plug with this appliance. Follow National
electrical codes or prevailing local codes
and ordinances.
Grounding Instruction
Electrical supply
This hood must be connected to a ground metal,
permanent wiring system, or an equipment-
grounding terminal or lead on the hood.
This vent hood must be supplied with 120V,
60Hz., 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.
•If the electrical supply does not meet the
above requirements, call a licensed electri-
cian before proceeding.
W
ARNING
Warning: The improper connec-
tion of the equipment-grounding
conductor can result in a risk of
electric shock. Check with a
qualified electrician or service
representative if you are in doubt whether
the appliance is properly grounded.
5
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Installation Preparation
Professional Vent Hoods
Use this chart to
compute maximum
permissable lengths
for duct runs to
outdoors.
Total
Duct
fittings
Equivalent Quantity Equivalent
Duct Piece Dimensions
Length*
Used
Length
Round,
straight
1 ft.
(per foot
length)
Note: Do not exceed maximum
permissable equivalent lengths!
3-1⁄4" x 12" or
3-1/4" x 24"
straight
1 ft.
(per foot
length)
Maximum duct length:
100 foot for range hoods.
90° elbow
45° elbow
15 ft.
9 ft.
Flexible ducting:
If flexible metal
ducting is used, all
the equivalent feet
values in the table
should be doubled.
The flexible metal
duct should be
straight and smooth
and extended as
much as possible.
3-1⁄4" x 12" or
3-1/4" x 24"
90° elbow
15 ft.
9 ft.
3-1⁄4" x 12" or
3-1/4" x 24"
45° elbow
3-1⁄4" x 12" or
3-1/4" x 24"
90° flat elbow
20 ft.
1 ft.
Do NOT use flexible
plastic ducting.
7" round to
3-1⁄4" x 12" or 10" round
to 3-1/4" x 24" transition
Note: Any home ventilation
system, such as a ventilation
hood, may interrupt the proper
flow of combustion air and
exhaust required by fireplaces,
gas furnaces, gas water heaters
and other naturally vented
3-1⁄4" x 12" to 7" round
or 3-1/4" x 24" to 10"
round transition
5 ft.
7" round to
3-1/4" x 12" or 10" round
to 3-1/4" x 24"
systems. To minimize the chance
of interruption of such naturally
vented systems, follow the heating
equipment manufacturer’s
guidelines and safety standards
such as those published by NFPA
and ASHRAE.
transition 90° elbow
5 ft.
3-1⁄4" x 12" to 7" round
or 3-1/4" x 24" to 10"
round transition 90° elbow 15 ft.
Round
wall cap
with damper
30 ft.
30 ft.
26 ft.
3-1⁄4" x 12" or
3-1/4" x 24" wall cap
with damper
48" Hoods Must Use
10" Round Duct
or 3-1/4" x 24"
Round
roof cap
Note: Outlet on top of 48" hood
is 4-1/2" x 18-1/2".
Round
roof vent
24 ft.
30" and 36" Hoods
May Use 7" to 10"
Round, or 3-1/4" x 12"
to 3-1/4" x 24"
Total Duct Run
* Actual length of straight duct plus duct fitting
equivalent. Equivalent length of duct pieces are based
on actual tests conducted by GE Evaluation Engineer-
ing and reflect requirements for good venting
performance with any ventilation hood.
6
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Installation
Professional Vent Hoods
Wall Mount Installation:
•Six, 5/16" lag screws, 2" long with washers,
all models (provided).
•Tape measure
•Spirit level
•Wire Cutter
•Wire stripper
•Electric drill
and appropriate bits
•Torx screwdriver
Tools &
Materials
Required
(not supplied)
Soffit Installation:
•Six, 5/16" lag screws, 2" long with washers,
all models (provided).
Optional for wall mount installations: (See page 9)
•48" x 18" plywood for 48" model,
36" x 18" plywood for 36" model,
•120V 60Hz 15 or 20 Amp, 2 wire with
ground. Properly grounded branch circuit.
•Metal ductwork, 3-1/4" x 24" or 10" round
for 48" wide model. 7" to 10" round or
3-1/4" x 12" to 3-1/4" x 24" for 30" and 36"
models.
30" x 18" plywood for 30" model.
•Cut and remove the plastic banding on the
crate and one holding the parts box.
•Remove the top of the crate by backing out
screws.
•Break-away crate sides.
•Remove the parts box and set aside.
•Remove plastic wrapping and padding.
male/female plug. Set aside.
•Remove 4 screws along inside front, 5 screws
along the inside back and 3 screws on each
side (30 and 36" models have fewer screws).
Remove the inner liner, disconnect the
male/female plugs, one to the heat lamp
and one to the blower. Set aside.
Step
1
Remove the
Packaging
and
For easier handling during installation, the hood
can be separated into 3 assemblies. The hood is
laying on its back, bolted to the skid in 4 loca-
tions.
CAUTION: Control panel is held in place
with set screws and may fall out when inner
liner is removed.
Disassemble
•Remove the assemblies shown for easier access
to the hold-down bolts.
•Remove the 4 bolts holding the hood to the
skid.
•Remove 8 screws located on the inside front.
(30" models have fewer screws.) Lift off the
halogen light assembly and disconnect the
Inner Liner
Disconnect
Through Junction Box on
Rough-In-Kit, Connect to
House Wiring
To Blower Motor
Hood Inner Liner
Light
Assembly
Remove Screws That
Hold Inner Liner in Place.
7
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Installation
Professional Vent Hoods
Locate the hardware accessory box packed
with range hood and check contents.
Step
2
Check
Installation
Hardware
Filter(s)
Grease
Tray(s)
Heat Lamp(s)
(on some models)
Halogen
Bulbs
We recommend that the vent hood
and/or duct cover be on site before
final framing and wall finishing to
more accurately locate the ductwork
and electrical service.
Step
3
Construct
Soffit
NOTE: If the top of the installation
location does not meet the soffit, use
a 6" or 12" duct cover accessory to
conceal the duct run.
Framing
Shims
INSTALLATION
UNDER A SOFFIT
(SKIP THIS STEP
IF SOFFIT IS NOT
USED.)
•The soffit should be constructed
with 2x4’s.
• Determine the installation location.
Finished Drywall
•Cut 2 wood shims, 2" x 10" X
(drywall thickness). Secure to the
bottom of the horizontal studs,
flush with the front, as illustrated.
NOTE: If drywall is present, cutaway
enough to expose studs.
B
“A” “A”
Hood Width
“A”
“B”
Opening Depth
for Ductwork
Centerline to
Stud Inner Edge
48" Models
36" Models
30" Models
11-1/4"
8-3/4"
10-11/16"
10" Min.
7" Min.
7" Min.
•Refer to step 4 for mounting screw
locations.
•Mark the centerline of the installation.
•Add additional 2 x 4 studs at the loca-
tions illustrated.
•For 48" models, allow 10" deep mini-
mum opening below the soffit to accom-
modate ductwork. For 30" and 36"
models, allow 7" deep minimum opening.
8
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Installation
Professional Vent Hoods
7" Min. (30" and 36" Models)
10" Min. (48" Models)
NOTE: A decorative duct cover is available
for wall mount installations. The duct cover
conceals the duct run from the top of the
hood to the ceiling. Choose the 6" or 12"
cover based upon installation height of the
vent hood.
Step
3
WALL MOUNT
INSTALLATION
(SKIP THESE
STEPS IF SOFFIT
IS USED.)
A
Construct
Wall Mount
Framing
Hood
Width
We recommend that the vent hood and
decorative duct cover be on site before final
framing and wall finishing in order to accu-
rately locate the ductwork and electrical
service.
• Determine the location for installation.
• Mark the centerline of the installation.
Plywood Sheet
(Wall Hole Cut
Out x Drywall
Thickness)
No Additional
Wall Studs needed
Rear View of Vent Hood (48" Model Shown)
Ceiling Drywall
6" or 12"
Duct
Cover
Cut a sheet of plywood, 48" wide (or 36" wide)
and 18" high. If drywall is installed, cut away
enough to expose 2 vertical studs, 1 on each
side of the cutout. Secure the plywood to the
studs.
6-1/2"
6-1/2"
Hood Centerline
2-1/2"
18"
C
L
C
C
OR
If drywall is installed, cut away enough to
expose 2 vertical studs.
•Install additional aligning wall studs as
illustrated.
“C” – Hood Centerline
13" for 48" wide models
9" for 36" wide models
8-15/16" for 30" wide models
7" Min. (30" and 36" Models)
10" Min. (48" Models)
Hood
Width
Additional
Wall Studs
Installed
Centerline of
Installation
Space
9
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Installation
Professional Vent Hoods
•Drill 3/16" pilot holes through the shims and
into the soffit studs.
Step
•Hold the hood against the soffit and secure
with 6 lag screws with washers.
SOFFIT INSTALLATION
4
•For additional support and to minimize
vibration during operation, we recommend
that the hood be secured to the back wall.
•Drive lag screws through the rear panel of
the hood and into the wall studs.
Install Hood
Below Soffit
INSTALLATION
UNDER A SOFFIT
(SKIP THIS STEP
IF SOFFIT IS NOT
USED.)
ZV881WSS, ZV880WSS
48" Hood Top View - Front Side
ZV671WSS, ZV670WSS
36" Hood Top View - Front Side
4"
6-1/4"
8-1/4"
2-3/4"
6-1/8"
8-1/4"
6-1/8"
1"
3-1/8"
Junction
Box
4-1/4"
7"
6-1/4"
5-3/4"
6-1/4"
4-1/2"
3-1/2"
3"
3"
12"
12"
8"
8"
Junction
Box
3-1/2"
2-1/4"
2-7/8"
3/4"
10-1/2"
10-1/2"
Back Side
35"
4-1/2"
4-1/2"
23"
Back Side
ZV891YSS, ZV890YSS
ZV681YSS, ZV680YSS
36" Hood Top View - Front Side
5-1/2"
48" Hood Top View - Front Side
14-11/16"
2-3/4"
8-1/2"
5-1/2"
6-1/4"
6-1/8"
14-11/16"
5-1/8"
6-1/8"
3-1/8"
3"
Junction
Box
4-1/4"
7"
4-1/2"
3-1/2"
12"
12"
5-7/8"
Junction
Box
14-7/16"
14-7/16"
3-1/2"
2-1/4"
3"
2-7/8"
3/4"
12-7/16"
12-7/16"
Back Side
47-7/8"
35-7/8"
10-15/16"
10-15/16"
Back Side
ZV371YSS, ZV370YSS
30" Hood Top View - Front Side
2-1/2"
5-1/2"
3-1/8"
Junction
Box
4-1/4"
7"
5-1/2"
3"
3"
12"
11-7/16"
11-7/16"
2-7/8"
3/4"
12-7/16"
12-7/16"
29-7/8"
Back Side
10
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Installation
Professional Vent Hoods
WALL MOUNT INSTALLATION
•Drill 3/16" pilot holes, approximately 1-1/2"
deep, in all mounting screw locations.
•Hold the hood in position and drive lag
screws in top left and right mounting holes.
Step
Ceiling
4
A
Install Hood
Onto Wall
NOTE: 5/16" hanger bolts can be used in the
two top locations. Place the hood onto the
hanger bolts and secure with nuts and washers.
WALL MOUNT
INSTALLATION
(SKIP THESE
STEPS IF SOFFIT
IS USED.)
•Install lag screws with washers in remaining
mounting holes.
ZV881WSS, ZV880WSS, ZV891YSS, ZV890YSS
ZV671WSS, ZV670WSS, ZV681YSS, ZV680YSS
48" Hood Rear View
36" Hood Rear View
Ceiling Drywall
Ceiling Drywall
6" or 12"
Duct
6" or 12"
Duct
Cover
Cover
Mounting
Screw
Mounting
Screw
6-1/2"
6-1/2"
18"
Holes
2-1/2"
2-1/2"
18"
Holes
6-1/2"
C
L
6-1/2"
C
L
8-15/16”
9”
9”
8-15/16”
13”
10-15/16”
10-15/16”
13”
35-7/8”
47-7/8”
ZV371YSS, ZV370YSS
30" Hood Rear View
Ceiling Drywall
6" or 12"
Duct
Cover
Mounting
Screw
6-1/2"
18"
Holes
2-1/2"
6-1/2"
C
L
6”
8-15/16”
29-7/8”
6”
8-15/16”
11
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Installation
Professional Vent Hoods
•Connect white lead to branch circuit white
lead.
•Connect black lead to branch circuit black
lead.
•Connect green lead to branch circuit green
or bare ground lead.
•Secure all connections with wire nuts on
each electrical connector.
Verify that power is turned off at the source.
W
A
R
N
I
NG
Step
If house wiring is not 2-wire with a
ground wire, a ground must be
provided by the installer.
5
Connect
When house wiring is aluminum,
be sure to use U.L. approved anti-
oxidant compound and alumi-
num-to-copper connectors.
Electrical
Step
Cut a length of duct to connect hood flange to
the ductwork.
Duct Tape
Over Seam and Screw
•Install ductwork, making connections in
direction of airflow as illustrated.
•Secure joints in ductwork with sheetmetal
screws.
Air
6
Flow
Connect
Ductwork
Screw
•Wrap joints with duct tape for airtight seal.
Transition duct pieces are available for 48"
wide models.
ZX48AY, 4-1/2" x 18-1/2" transition to 10"
round straight up exhaust.
ZX48BY, 4-1/2" x 18-1/2" transition to 10"
round direct to rear exhaust.
Call your GE Dealer to order.
Hold the liner below the installed hood.
•Reconnect the male/female connector plug
to heat lamp and one to blower.
•Carefully, slide liner into installed hood.
•While holding in place, re-install the original
screws. Make sure that all screws have been
re-installed.
Step
7
Reassemble
Hood
•Re-install light assembly with original screws.
Connect to
Reconnect Male/Female
Junction Box
Connector Plug
To Blower Motor
Hood Inner Liner
Replace Screws That
Hold Inner Liner in Place.
12
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Installation
Professional Vent Hoods
“WSS” Duct Covers
•Fasten the duct cover to the top of the hood
with 2 screws.
Step
8
Install
Duct Cover
Secure
with Screws
“YSS” Duct Covers
•Install one side piece to the top of the hood
with 2 screws. Install opposite side piece.
• Secure front panel to the side panels with 2
torx screws on each side (provided).
•Place the filter drip trays into the bottom
of the opening.
Step
9
Install
Filters
•Grasp the filter by handles, tip the top
portion into the opening, move upwards
and drop into drip trays.
13
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Notes
Professional Vent Hoods
14
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Notes
Professional Vent Hoods
15
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Note: While performing installations described in this book,
safety glasses or goggles should be worn.
To obtain specific information concerning any
Monogram product or service, call GE Answer Center®
consumer information service at 800.626.2000—any
time, day or night.
For Monogram local service in your area, call
1-800-444-1845.
Pub. No. 49-8816-1
Dwg. No. 164D3333P060
ꢀ1999 GE Appliances
(N.D. 173) 5/99
10657-1
NOTE: Product improvement is a continuing endeavor at General
Electric. Therefore, materials, appearance and specifications are subject
to change without notice.
®
Monogram.
General Electric Company
Louisville, KY 40225
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