Wolf IH4227 User manual

Planning Information
Model IH4227 Cooktop Island Hood
Dimensions in parentheses are in
millimeters unless otherwise specified.
9/06
1
When your dream kitchen calls for a centralized
cooking surface, the Wolf cooktop island hood is the
ideal ventilation companion. The sculpted classic
stainless steel shape not only provides the power you
expect from Wolf, but also the beauty you have come
to appreciate as well.
This ceiling mount cooktop hood is 42" (1067) wide
by 27" (686) deep. It has a telescopic chimney flue that
allows you to reach a ceiling height of 8' (2.4 m) to 9'
(2.7 m) with a finished look. A flue extension to
accommodate 10' (3 m) ceilings is available as a sales
accessory.
The Wolf cooktop island hood is recommended for use
with Wolf electric and gas cooktops and integrated
modules. For Wolf dual fuel ranges, gas ranges, sealed
burner rangetops and gas rangetops, a Pro ventilation
hood should be used.
The Wolf cooktop island ventilation
hood is available in the classic stainless
steel finish. It is sold as a shell only,
internal, in-line and remote blower
options are available.
Classic stainless
steel finish
Aluminum mesh
filter
Front mounted
controls
Rating plate
location
Three-speed
blower control
Seamless
Construction
Transition with
backdraft damper
Model IH4227
LED indicators
Halogen lighting

Planning Information
Model IH4227 Cooktop Island Hood
Dimensions in parentheses are in
millimeters unless otherwise specified.
Dimensions may vary by ±
1
/ 8 " (3).
2
339/16" TO 471/16"
(853 - 1195)
OVERALL HEIGHT
42" (1067)
OVERALL WIDTH
18"
(457)
12"
(305)
27" (686)
OVERALL DEPTH
195/16"
(491)
5"min
(127)
91/4"
(235)
19/16"
(40)
OVERALL DIMENSIONS
FEATURES
Classic stainless steel finish
Internal, in-line and remote blower options
Front mounted controls with LED indicator
Heavy-duty stainless steel seamless
construction
Three-speed blower control
Variable speed blowers
Filter clean timer lets you know when the
filter needs cleaning
Delay-off mode automatically turns unit off
Sealed halogen lighting with three settings
Stainless steel filter cover with dishwasher
safe aluminum mesh filter
Heat sentry feature automatically turns unit
on when heat is sensed and automatically
adjusts blower speed
Transition with backdraft damper included
Fits 8' (2.4 m) to 9' (2.7 m) ceilings – flue
extension to accommodate 10’ (3 m) ceilings
is available as a sales accessory
UL listed to US and Canadian safety
standards
Two and five year residential warranty –
exclusions apply; warranty information can
be found on our website, wolfappliance.com

Planning Information
Model IH4227 Cooktop Island Hood
Model IH4227
Dimensions in parentheses are in
millimeters unless otherwise specified.
3
SPECIFICATIONS
Overall Width 42" (1067)
Overall Height (excluding chimney) 9 1/4" (235)
Overall Height (including chimney) 33 9/16" (853)
Maximum Height (full extension) 47 1/16" (1195)
Overall Depth 27" (686)
Transition 8" (203) to 10" (254) round
Duct Size 8" (203) round
Discharge Vertical
Electrical Supply Requirements 110 /120 V AC, 60 Hz
15 amp dedicated circuit
Shipping Weight 110 lbs (50 kg)
Specifications are subject to change without notice.
BLOWER OPTIONS
600 CFM Internal Blower 801644
900 CFM Internal Blower 801645
600 CFM In-Line Blower 808331
1100 CFM In-Line Blower 808332
600 CFM Remote Blower 801640
900 CFM Remote Blower 801641
1200 CFM Remote Blower 801642
1500 CFM Remote Blower 804701
Model IH4227 is sold as a shell only,
an internal, in-line or remote blower will
be required. Refer to Wolf Cooktop
Ventilation Recommendations at the end
of this section.
ACCESSORIES
Flue extension to accommodate
10' (3 m) ceilings
8" (203) to 10" (254) round
transition
Accessories are available through your
Wolf dealer. To obtain local dealer
information, visit the Locator section of
our website, wolfappliance.com.

Planning Information
Model IH4227 Cooktop Island Hood
Dimensions in parentheses are in
millimeters unless otherwise specified.
4
DIMENSIONS
Overall Width of Hood 42" (1067)
Floor to Ceiling Height 8' (2.4 m) to 9' (2.7 m)
Countertop to Bottom of Hood 24" (610) to 30" (762)
Minimum Height of Hood (fully collapsed) 33 9/16" (853)
Maximum Height of Hood (full extension) 47 1/16" (1195)
Location of Electrical Through top of hood
See Installation Instructions shipped with unit for detailed specifications.
42" (1067)
471/16" (1195)
MAXIMUM
HEIGHT OF HOOD
339/16" (853)
MINIMUM
HEIGHT OF HOOD
27" (686)
LOCATION OF ELECTRICAL
ON CEILING THROUGH
TOP OF HOOD
8' TO 9'
(2.4 m – 2.7 m)
FLOOR TO
CEILING HEIGHT
24" TO 30"
(610 – 762)
TO
COUNTERTOP
*8' (2.4 m) ceilings will not allow for a 30" (762) maximum height above the countertop. Based on a 36" (914) high countertop, an 8' (2.4 m) ceiling
will allow for a maximum height above the countertop of 26
7
/ 16 " (672).

Planning Information
Model IH4227 Cooktop Island Hood
Dimensions in parentheses are in
millimeters unless otherwise specified.
5
INSTALLATION NOTES
Refer to the illustrations and specifications
for overall dimensions and installation specifics.
The Wolf cooktop island hood is recom-
mended for use with Wolf electric and gas
cooktops and integrated modules. The hood
should be at least as wide as the cooking
surface.
IMPORTANT NOTE: Wolf Pro ventilation hoods
should be used with Wolf dual fuel ranges, gas
ranges, sealed burner rangetops and gas range-
tops.
The Wolf cooktop island hood comes with a
telescopic chimney flue extension that allows
you to reach a ceiling height of 8' (2.4 m) to 9'
(2.7 m) with a finished look. A flue extension to
accommodate 10' (3 m) ceilings is available as a
sales accessory.
Installation of the cooktop island hood
should be 30" (762) to 36" (914) from the
bottom of the hood to the countertop. Follow
the dimensions shown in the Installation
illustration.
IMPORTANT NOTE: 8' (2.4 m) ceilings will not
allow for a 30" (762) maximum height above
the countertop. Based on a 36" (914) high
countertop, an 8' (2.4 m) ceiling will allow for
a maximum height above the countertop of
26 7/16" (672).
The Wolf cooktop island hood is shipped
without a blower assembly. Internal, in-line and
remote blower assemblies are available. Blower
options also vary with the volume of air that
needs to be moved and the length of the duct
run. Refer to the charts at the end of this
section for ventilation recommendations and
blower options.
IMPORTANT NOTE: Install this ventilation hood
only with a Wolf blower.
The Wolf cooktop island hood requires a
separate, grounded 110/120 V AC, 60 Hz power
supply. The service should have its own 15
amp circuit breaker. Placement of the outlet is
not critical, as long as you provide a minimum
of 12" (305) of 120 V AC, 60 Hz power cable.
Locate electrical supply on the ceiling through
the top of the hood.
You must follow all National Electrical Code
regulations. In addition, be aware of local codes
and ordinances when installing your service.
The Wolf cooktop island hood has an 8"
(203) round vertical discharge.
Refer to the installation instructions shipped
with each Wolf product for detailed specifica-
tions. This information can also be found on
our website, wolfappliance.com.

Planning Information
Model IH4227 Cooktop Island Hood
6
Dimensions in parentheses are in
millimeters unless otherwise specified.
MODEL IH4227
(A) (B) (C) (D) (E) (F)
96" (2438) 36" (914) 24" (610) min 33 9/16" (853) 2 7/16" (62) 471/16" (1195)
96" (2438) 36" (914) 26 7/16" (672) max 33 9/16" (853) 0" 471/16" (1195)
108" (2743) 36" (914) 24" (610) min 33 9/16" (853) 14 7/16" (367) 471/16" (1195)
108" (2743) 36" (914) 30" (762) max 33 9/16" (853) 8 7/16" (214) 471/16" (1195)
Letters correspond to those in the illustration.
COOKTOP HOOD PLACEMENT
The Wolf cooktop island ventilation hood comes with a
telescopic chimney flue that allows you to reach a ceiling
height of 8' (2.4 m) to 9' (2.7 m) with a finished look. A flue
extension to accommodate 10' (3 m) ceilings is available as
a sales accesory.
Installation of the island hood should be 24" (610) to 30"
(762) from the bottom of the hood to the countertop.
IMPORTANT NOTE: 8' (2.4 m) ceilings will not allow for
a 30" (762) maximum height above the countertop. Based
on a 36" (914) high countertop, an 8' (2.4 m) ceiling will
allow for a maximum height above the countertop of
26 7/16" (672).
IMPORTANT NOTE: Both sections of the telescopic
chimney flue must be installed in order for the chimney to
be lifted for service.
To determine placement of the cooktop island hood, you
must calculate the height of the telescopic chimney flue.
Refer to the illustration and chart below.
To calculate the height of the telescopic chimney flue:
1) First measure A(total kitchen height from finished floor
to finished ceiling height).
2) Next measure B(height from finished floor to counter-
top).
3) Then determine the minimum Cvalue (distance from
countertop to bottom of hood). Refer to the chart for
ceiling heights from 8' (2.4 m) to 9' (2.7 m). Dimension C
must be greater than 24" (610) and less than 30" (762).
4) To determine the upper flue section height:
E=A-(C+B+D).
IMPORTANT NOTE: If dimension Efalls between 0" (0) and
1/2" (13), you will need to modify the flue to affix to the flue
attachment brackets. For ease of installation, Wolf
recommends that dimension Ebe no less than 1/2" (13).
(B)
FLOOR TO
COUNTERTOP
HEIGHT
(A)
TOTAL
FLOOR TO
CEILING
HEIGHT (C)
COUNTERTOP
TO BOTTOM
OF HOOD
(F)
MAXIMUM
HEIGHT OF
HOOD (D)
BOTTOM
OF HOOD TO
MINIMUM FLUE
EXTENSION
(E) UPPER FLUE TOTAL
HEIGHT TO CEILING

Planning Information
Model IH4227 Cooktop Island Hood
7
Dimensions in parentheses are in
millimeters unless otherwise specified.
Ducting considerations
for the Model IH4227
cooktop island hood.
DUCTING CONSIDERATIONS
The Wolf cooktop island hood is shipped
without the blower assembly. Internal, in-line or
remote blower assemblies are available. The
remote blower will be mounted on the roof.
The cooktop island hood has an 8" (203) round
vertical discharge. The ventilation hood will
operate most efficiently when ductwork does
not exceed 40' (12 m) in length. Ducting can run
through the roof or through an eave as shown in
the illustration below.
8" (203) ROUND DUCT
8" (203) ROUND ELBOW
CHIMNEY FLUE EXTENSION
TELESCOPIC CHIMNEY FLUE
8" (203) ROUND DUCT
24" TO 30"
(610– 762)
COUNTERTOP
TO BOTTOM OF
VENTILATION HOOD
COOKTOP
ISLAND HOOD
DUCTWORK INSTALLATION
THROUGH ROOF
DUCTWORK
INSTALLATION
THROUGH
EAVE –
INTERNAL
BLOWER ONLY
8" (203) ROUND
ELBOW
EAVE VENT
91/4" (235)
27"
(686)
8" (203) ROUND
VERTICAL
DISCHARGE
ROOF CAP OR REMOTE BLOWER –
TRANSITION FROM 8" (203) TO 10" (254) DUCT
REQUIRED FOR REMOTE BLOWER
IMPORTANT NOTE: All Wolf ventilation hoods
must be vented to the outside. Use only metal
ductwork.
Local building codes may require the use of
make-up air. Consult your local HVAC profes-
sional for specific requirements in your area.
IMPORTANT NOTE: Install this ventilation hood
only with a Wolf blower.

Planning Information
Wolf Ventilation Recommendations
Dimensions in parentheses are in
millimeters unless otherwise specified.
8
241/2"
(622)
151/2"
(394)
281/4"
(718)
203/4"
(527)
243/4"
(629)
14"
(356)
43/4"
(121)
10" (254)
Diameter
143/4"
(375)
291/2"
(749)
291/2"
(749)
18" (457)
22"
(559)
101/8"
(257)
71/4"
(184)
10"
(254)
10" (254)
Diameter
Remote BLOWER-60REM and
BLOWER-90REM
143/4"
(375)
291/2"
(749)
291/2"
(749)
21" (533)
25"
(635)
103/8"
(264)
71/4"
(184)
10"
(254)
10" (254)
Diameter
WOLF BLOWER ASSEMBLIES
A ventilation system must include a blower
assembly. With a few exceptions where internal
blowers are included, Wolf ventilation hoods and
downdrafts are shipped without the blower
assembly. An internal, in-line or remote blower
assembly must be selected to accommodate the
cooking appliance, CFM requirements and home-
owner preferences. Internal, in-line and remote
blower assemblies are available as sales acces-
sories through your Wolf dealer.
Wolf internal, in-line and remote blowers are for
use with Wolf cooktop hoods, downdraft
systems and Pro ventilation hoods and hood
liners.
IMPORTANT NOTE: Use only a Wolf blower
with all Wolf ventilation products.
Internal blowers are mounted inside the hood
canopy or downdraft blower box. In-line blowers
are mounted in between the hood and the
exterior of the home. Remote blowers can be
mounted on the roof or in some cases, on an
exterior wall. Refer to the illustrations below for
dimensions of Wolf in-line and remote blowers.
Ventilation recommendation charts on the
following pages provide minimum CFM recom-
mendations according to the cooking appliance
and ventilation system used and blower options
for each specific ventilation hood or downdraft.
Remote BLOWER-120REM Remote BLOWER-150REM
113/4"
(298)
211/2"
(546)
243/8"
(619)
181/2"
(470)
121/4"
(311)
41/2"
(114)
18"
(457)
22"
(559)
247/8"
(632)
12"
(305)
18"
(457)
8"
(203)
In-line BLOWER-60IL In-line BLOWER-110IL
Dimensions may vary by ±
1
/ 8 " (3).

Planning Information
Wolf Cooktop Ventilation Recommendations
9
Dimensions in parentheses are in
millimeters unless otherwise specified.
COOKTOP VENTILATION CFM RECOMMENDATIONS
Cooktop Hoods, Downdrafts and Pro Hoods
CTWH30 CTWH36 IH4227 DD30 DD36 DD45 Pro Hoods
Electric Cooktops
Model CT15E 215* 215* 215* 215* 150* 215*
Model CT30E 450 600 600 500 350 600
Model CT30EU 450 600 600 600
Model CT36E 600 600 500 600
Model CT36EU 600 600 600
CTWH30 CTWH36 IH4227 DD30 DD36 DD45 Pro Hoods
Gas Cooktops
Model CT15G 215* 215* 215* 215* 150* 215*
Model CT30G 450 600 600 500 350 600
Model CT36G 600 600 500 600
CTWH30 CTWH36 IH4227 DD30 DD36 DD45 Pro Hoods
Modules
Model CT15I 215* 215* 215* 215* 150* 215*
Model IG15 215* 215* 215* 215*
Model IS15 215* 215* 215* 215*
Model IF15 215* 215* 215* 215*
Model IM15 215* 215* 215* 215* 150* 215*
*Use these requirements to determine total CFM when installing multiple cooktops or modules.
CFM recommendations are based on total Btu/hr output. Wolf recommends 1 CFM per 100 Btu/hr (.03 kW).
Additional CFM may be required for long duct runs.
COOKTOP VENTILATION BLOWER OPTIONS
Cooktop Ventilation Hoods
Blower Description Blower Number Cooktop Hood Models
450 CFM Internal CTBLOWER-45INT (801643) CTWH30
600 CFM Internal CTBLOWER-60INT (801644) CTWH36 / IH4227
900 CFM Internal CTBLOWER-90INT (801645) CTWH36 / IH4227
600 CFM In-Line BLOWER-60IL (808331) CTWH30 / CTWH36 / IH4227
1100 CFM In-Line BLOWER-110IL (808332) CTWH30 / CTWH36 / IH4227
600 CFM Remote BLOWER-60REM (801640) CTWH30 / CTWH36 / IH4227
900 CFM Remote BLOWER-90REM (801641) CTWH30 / CTWH36 / IH4227
1200 CFM Remote BLOWER-120REM (801642) CTWH30 / CTWH36 / IH4227
1500 CFM Remote BLOWER-150REM (804701) CTWH30 / CTWH36 / IH4227
Vertical discharge with 8" (203) round duct for wall and island hoods. Transition is not required for internal blowers; in-line and remote
blowers require TRANS-8-10. Backdraft damper included with wall and island hoods.
Blower configurations are for reference only. Refer to minimum CFM recommendations for your specific cooking product.
Always consult a qualified HVAC Engineer for specific applications.