KitchenAid KPEC992MSS Installation Instruction
KitchenAid®Model KPEC992M
900 cfm (25.5 m3/m) Exterior Blower
Installation Instructions and Use and Care Guide
Your safety and the safety of others
are very important.
We have provided many important
safety messages in this manual and on
your appliance.Always read and obey
all safety messages.
This is the safety alert
symbol.
This symbol alerts you to
potential hazards that can kill or hurt
you and others.
All safety messages will follow the
safety alert symbol and either the word
“DANGER” or “WARNING”.These
words mean:
All safety messages will tell you what
the potential hazard is, tell you how to
reduce the chance of injury, and tell you
what can happen if the instructions are
not followed.
You can be killed or seriously
injured if you don’t immediately
follow instructions.
You can be killed or seriously
injured if
you don’t follow
instructions.
WARNING
Before you start...
Electrical requirements
DANGER
IMPORTANT: READ AND SAVE THESE INSTRUCTIONS.
The installer must leave these instructions with the homeowner.The homeowner must keep these instructions for future
reference and for local electrical inspectors use.
IMPORTANT: Obser ve all governing
codes and ordinances.
It is the customer’s responsibility:
•To contact a qualified 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
qualified electrician determine that the
ground path is adequate.
Do not ground to a gas pipe.
Check with a qualified electrician if you
are not sure exterior blower is properly
grounded.
Do not have a fuse in the neutral or
ground circuit.
A.A 120-volt, 60-Hz, AC-only supply
wired for 15 amp service is required.
B.The blower motor must be
connected with copper wire only.
Copies of standards listed may be
obtained from:
* National Fire Protection Association
One Batterymarch Park
Quincy, Massachusetts 02269
** CSA International
8501 East Pleasant Valley Road
Cleveland, Ohio 44131-5575
Page 1
17-3/4"
(45.1 cm)
23-1/4"
(59.1 cm)
7-1/4"
(18.4 cm)
WARNING - TO REDUCE THE RISK
OF FIRE, ELECTRICAL SHOCK, OR
INJURY TO PERSONS, OBSERVE
THE FOLLOWING: Use this unit only
in the manner intended by the
manufacturer. If you have any
questions, contact the manufacturer.
Before servicing or cleaning unit, switch
power off at service panel and lock the
service disconnecting means 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.
IMPORTANT: Obser ve all governing
codes and ordinances.
Proper installation is your responsibility.
Make sure you have everything
necessary for correct installation. It is
the responsibility of the installer to
comply with the clearances specified.
To avoid damage to motor bearings
and impellers, keep drywall spray,
construction dust, etc. away from the
exterior blower.
IMPORTANT
Before installing exterior mounted
blower, read the Installation Instructions
for the vent system that will be used in
conjunction with this exterior blower.
This fan is suitable for use with solidstate speed controls.
Venting requirements
Maximum length of
vent system
Determine the length of
vent system you need
WARNING — TO REDUCE THE
RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS,
OBSERVE THE FOLLOWING:
Installation work and electrical
wiring must be done by qualified
person(s) in accordance with all
applicable Codes and Standards,
including Fire Rated Construction.
Sufficient air is needed for proper
combustion and exhausting of
gases through the flue (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 of
Heating Refrigeration and Air
Conditioning Engineers
(ASHRAE), and the local code
authorities.
When cutting or drilling into wall
or ceiling, do not damage
electrical wiring and other hidden
utilities.
Ducted fans must always be
vented to the outdoors.
WARNING — To reduce the risk of
fire, use only metal ductwork.
This unit must be grounded.
C.The blower motor must be
connected to the vent system wiring as
described in the vent system
instructions for connecting the exterior
blower motor wiring. Flexible armored
or nonmetallic cable must be used. A
1/2" (12.7 cm) U.L./CSA-listed strain
relief must be provided at each end of
the power supply cable.
Wire sizes must conform to the
requirements of the National Electrical
Code ANSI/NFPA 70 — latest edition*
or Canadian Electrical Code, C22.1
and C22.2 No.113-M1984 (or latest
edition),** and all local codes and
ordinances. 14 gauge wire (minimum)
is recommended.
Copies of standards listed may be
obtained from:
* National Fire Protection Association
One Batterymarch Park
Quincy, Massachusetts 02269
** CSA International
8501 East Pleasant Valley Road
Cleveland, Ohio 44131-5575
90° elbow =
5 ft. (1.5 m)
1 ft. round =
1 ft. (0.3 m)
45° elbow =
2.5 ft. (0.8 m)
Recommended standard
10" (25.4 cm) fittings
Determine which venting method is best
for your application.Vent system can
extend either through the wall or the
roof.
Locate the exterior blower so that the
length of the vent system and the
number of elbows is kept to a minimum
to provide efficient performance. Where
possible, exterior blower should be
centered between wall studs or roof
rafters.The size of the vent system
should be uniform. Do not install two
elbows together.Use duct tape to seal
all joints in the vent system. Use
caulking to seal exterior wall or floor
opening around the cap.
Make sure there is proper clearance
within the wall or ceiling for exhaust vent
before making cutouts. Avoid pipes,
wires, or other vent systems that may be
running through the wall. Do not cut a
joist or stud unless absolutely necessary.
If a joist or stud must be cut, then a
supporting frame must be constructed.
For use with KIRD series retractable
Downdraft models:
• The plastic vent collar shipped in
carton attaches to the front of the
downdraft vent system plenum so
that the 10" (25.4 cm) round vent can
be attached to the downdraft vent
system.
For use with KHLU series Hood Liner
models:
• Discard plastic vent collar shipped in
carton.
Make sure that there is enough space
for any vent transitions that may be
needed between the exterior blower and
the connecting vent system.
For optimum performance, locate any
necessary vent transitions nearest to
the vent system that will be used with
this power system.
This exterior blower requires a separate
U.L./CSA approved wiring cable that
should be installed at the same time the
vent system is being installed.
Vent Length
10" (25.4 cm) round 55 ft. (16.8 m)
Vent length is given as a general
reference only.For a longer vent run, or
smaller vent system, contact a qualified
and trained vent installer. Check with local
codes for makeup air requirements, if any.
It is recommended that you use round
vent instead of rectangular vent,
especially if elbows are required. If
rectangular vent is required, if should be
transitioned to 10" (25.4 cm) round vent
as soon as possible.
For best performance, use no more
than three 90° elbows.If more than one
elbow is used, make sure that there is
a minimum of 24 inches (61 cm) of
straight vent between any two elbows.
Do not install two elbows together.
To calculate the length of system you
need, add the equivalent feet (meters)
from chart below for each vent piece
that will be needed.
Page 2
Install this side of the fan facing an
unoccupied space.
FIGURE 1
(for wall
installations)
Now start...
Excessive Weight Hazard
Use two or more people to move
and install external blower.
Failure to do so can result in back
or other injury.
WARNING
1.
Discard any cardboard packaging
from the blower wheel.
2.Remove the back cover, wiring
box cover and electrical wiring
knockout.
3.In the knockout, attach the
U.L./CSA-listed strain relief.
Note: For most installations, it is
recommended that the strain relief be
installed so that it can be tightened from
inside the exterior blower housing.
4.Reattach the wiring box cover
loosely. It will be removed again in Step
2 of “Making electrical and vent
connections.”
Follow the instructions for your type
(wall or roof) installation.
WALL INSTALLATIONS
ROOF INSTALLATIONS
1.Choose a location on an outside
wall where no wall studs, wires, pipes,
etc. run through the opening area. A
minimum distance of 24" (61 cm) from
exterior blower to ground may be
required depending on local code.
Make sure to leave room for anticipated
snowfall in your region.
2.Drill the guide hole in the center
of the 11" (27.9 cm) diameter opening
area.
3.Mark a 17-3/4" x 23-1/4" (45.2 x
59.0 cm) rectangle on wall as indicated
in FIGURE 1.
4.Cut a rectangular hole in the
siding only. Do not cut sheathing. Nail
down all siding ends.
5.Mark an 11" (27.9 cm) diameter
circle around Guide Hole as indicated in
FIGURE 1. Mark center of the 1-1/4" (or
3.0 cm) diameter hole for electrical
wiring as indicated in FIGURE 1.
6.Cut 11" (27.9 cm) diameter hole
in sheathing. Drill the 1-1/4" (or 3.0 cm)
diameter electrical wiring hole.
7.Run a large bead of caulk on the
back side of the housing along the outer
edge.
8.Center the exterior blower ring in
the 11" (27.9 cm) diameter hole, making
sure that the 1-1/4" (or 3.0 cm)
diameter electrical wiring hole lines up
with the hole in the wiring box.
23-1/4"
(59.0 cm)
7-13/32"
(18.8 cm)
6-1/32"
(15.3 cm)
1-1/4"
(3.0 cm)
dia. hole
7-5/8"
(19.4 cm)
9-1/8"
(23.2 cm)
7-5/8"
(19.4 cm)
16-3/8"
(41.6 cm)
7-7/8"
(20.0 cm)
1-1/4"
(3.0 cm)
dia. hole
11" (27.9 cm)
dia. hole
guide
hole
guide
hole
11" (27.9 cm)
dia. hole
17-3/4" (45.2 cm)
9-3/16"
(23.3 cm)
15-1/4" (38.7 cm)
1.Choose location on rear slope of
roof that minimizes vent run. Avoid
obstacles such as TV leads, electric
lines, etc. If exterior blower top is level
with roof peak, it will not be seen from
street. Remember this location as you
work from inside the attic.
2.Mark a point half-way between the
rafters and drill a guide hole at this point.
3.From the outside, using the guide
hole as a starting point, mark the
rectangular cut-out as indicated in
FIGURE 2. Remove only the shingles in
this area.
4.Mark an 11" (27.9 cm) diameter
circle around guide hole as indicated in
FIGURE 2. Mark center of the 1-1/4" (or
3.0 cm) diameter hole for the electrical
wiring as indicated in FIGURE 2.
5.Cut out the roof boards along the
11" (27.9 cm) diameter circle. Drill the
1-1/4" (or 3.0 cm) diameter electrical
wiring hole.
Page 3
9.Attach the exterior blower to wall
using screws appropriate for your
installation. All four holes in the back
panel must be filled to prevent moisture
that may get inside the exterior blower
housing from leaking into the home.
10.Seal all around the mounting
screw heads with caulk.
11.Go to "Making electrical and
vent connections", Page 4.
6-1/32"
(15.3 cm)
FIGURE 2
(for roof
installations)
Making electrical and vent connections
If you are installing external
blower on a flat roof:
Locate the 11" (27.9 cm) dia. hole
between rafters.
Build a sloping base that will mount the
exterior blower at a minimum pitch of
2-1/2" (6.4 cm).Weatherproof the base
as required.
Locate the base so that the exterior
blower's vent aligns with the 11"
(27.9 cm) dia. hole and the blower sits
evenly on the base with no gaps.
NOTE: Make sure that the discharge
end of the exterior blower faces away
from the direction of prevailing winds.
Use dimensions from either FIGURE 1
or 2 (Page 3) to locate the 1-1/4"
(3.0 cm) dia. wiring hole.
23-1/4"
(59.1 cm)
2 x 4 framing
recommended
2"
(5.1 cm)
7"
(17.8 cm)
17-3/4"
(45.1 cm)
11" (27.9 cm)
dia. hole
discharge side
of blower
6.Remove roofing nails from the
upper two-thirds of the shingles to allow
the back flashing sheet on the exterior
blower housing to fit under them.
7.Center the exterior blower collar
in the 11" (27.9 cm) diameter hole,
making sure that the 1-1/4" (or 3.0 cm)
diameter electrical wiring hole lines up
with the hole in the wiring box.
8.Attach the exterior blower to roof
or frame using screws appropriate for
your installation. All four holes in the
back panel must be filled to prevent
moisture that may get inside the remote
blower housing from leaking into the
home.
Electrical Shock Hazard
Disconnect power before
servicing.
Connect the ground wire to green
ground screw in wiring box.
Failure to do so can result in
death or electrical shock.
WARNING
1.Connect the vent work to the
exterior blower’s black plastic vent collar
and seal connection securely with duct
tape.
2.Remove the wiring box cover and
pull the 120-volt power supply cable
through the strain relief.
9.Seal all the shingles around the
exterior blower housing or frame and
flashing with roofing cement.
Note: If the top and sides of exterior
blower are to be covered with trim:
• Make the electrical connections and
check the blower operation first.
• Do not block vent grill opening with
trim. Doing so will decrease blower
performance.
10.Go to “Making electrical and
vent connections”, Page 4.
Page 4
3.Make the wiring connections.
(See FIGURE 3 and wiring diagram.)
• Using twist-on connectors:
• Connect white wires.
• Connect black wires.
• Connect the green power supply wire
to the unused green ground screw.
• Securely tighten strain relief screws.
4.Replace the wiring box cover
and securely tighten the screws.Make
sure that wires are not pinched under
the cover.
5.Reinstall blower cover and
tighten screws securely.
6.Connect the vent work to the
hood liner or downdraft vent system
installed.
7.Follow the Installation
Instructions that came with the hood
liner or retractable downdraft vent
installed and complete the wiring
connections.
8.Turn on the power. Follow the
instructions in the “Check Operation”
section of the Installation Instructions
that came with the hood liner or
retractable downdraft installed and
make sure blower operates properly.
Check that the damper, if used,
operates freely.
green
ground
wire
green
ground
screw
motor
wiring
white
wires
black
wires
twist-on
connectors
FIGURE 3
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