VentAHood ZTH User manual

Read and Save These Instructions
All Hoods Must Be Installed By A Qualified Installer
INSTALLATION INSTRUCTIONS
ZTH WALL MOUNT HOOD
Read All Instructions Thoroughly Before Beginning Installation
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
qualified person(s) in accordance with all applicable codes and
standards, including fire-rated construction. Switch power off at
service panel and lock the service disconnecting means to
prevent power from being switched on accidentally during
installation.
B. When cutting or drilling into wall or ceiling, do not damage
electrical wiring and other hidden utilities.
C. Ducted fans must always be vented to the outdoors.
D. 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 for Heating, Refrigeration and Air
Conditioning Engineers (ASHRAE), and local code authorities.
WARNING - TO REDUCE THE RISK OF FIRE, USE ONLY METAL
DUCTWORK
Page 1
(Rev. 07/07)

Ducting Do's and Don'ts
NEVER restrict the duct size. The single blower unit (B100) requires 6" round duct or
equivalent (28 square inches), and the dual blower unit (B200) requires 8" round duct or
equivalent (50 square inches). When combining ducts together, the square inch area
must reflect the total square inch area of the ducts being combined. Using Vent-A-Hood
transitions (back page) will ensure proper efficiency.
Blower Duct Size Sq. Inch Area Vent-A-Hood Transition
Dual (B200) 8" round or equivalent 50" N/A
Single and Dual (B100 & B200) 10" round or equivalent 79" VP562 (Optional)
Do not use flexible or corrugated duct. This type of duct will restrict air flow and reduce
performance. Only use smooth galvanized metal duct. Observe local codes regarding
special duct requirements and placement of duct against combustibles. Make the duct run
as short and as straight as possible with as few turns as possible. Avoid sharp angled
turns. Instead, use smooth gradual turns such as adjustable elbows or 45 degree angled
turns. For duct runs over 20 feet, increase duct diameter by one inch for every ten feet of
duct. A 90 degree elbow is equivalent to 5 feet of duct. Using Vent-A-Hood roof jacks or
wall louvers (back page) will ensure proper efficiency. Air must not be restricted at the end
of duct run. Do not use screen wire or spring loaded doors on wall louvers or roof jacks.
Do not terminate vent into an attic or chimney. Where possible, seal joints with duct tape.
The hood must be ducted unrestricted to the outdoors.
(1
Smooth Duct Smooth Gradual Turn Proper Combining of
Two Ducts
NO
Flexible Duct Sharp Angled Turns
Page 2
(Rev. 07/07)
Improper Combining
of Two Ducts

1)
2)
Installation Details
Read all instructions thoroughly before beginning installation.
When installing the ZTH, it is recommended that the bottom edge of the hood be located 30" from the
countertop. Exceeding recommended mounting height may compromise performance.
Duct _.+ I
C°Veil__
12: 1. .
30"
3)
Shown with duct cover installed (sold separately).
IF THE HOOD IS TO BE "BACK VENTED", PROCEED DIRECTLY TO STEP 4.
Pre-install the duct from the outside of the home to the ceiling over the exhaust outlet of the hood. The end of
the duct should extend 1" below the ceiling. Consult the connection diagrams (below) for further details on
exhaust outlet placement.
Use duct tape to seal all joints. A complete listing of available Vent-A-Hood ducting materials is provided on
the back page of this instruction sheet.
Transition heights are as follows:
Dual Blower (B200) :
Single and Dual Blower (B100 & B200):
8" round duct will connect directly to the exhaust outlet of the hood.
6" round duct will connect directly to the exhaust outlet of the hood;
8" round will connect directly to the exhaust outlet of the hood.
Optional 10" round combination transition (VP562) is 17 1/2" tall.
Connection Diagram 36" -48" Widths
Woll Side
""7I_, _" rs_"
_,o_t.oo,--.,.../j o_i:;L°
t,/--- o_.oo_
600 CFM B200 Dual Blower
(Top View)
Connection Diagram 54" Width
_J\iJ / LiJ.- <=)I
8" .._/#_"_ _ Centedine "_- 6" Outlet
Outlet /Of Hood
900 CFM B200 Dual Blower B100 Single Blower
(Top View)
Page 3
(Rev. 07/07)

4)
5)
6)
Installation Details Continued
Remove the hood from the packaging and place the back of the hood on the floor or countertop in front of the
wall where it will hang.
Remove the blower shield(s) (A) by loosening the two brass screws on the bottom of the shield. Gently close the
back draft dampers from the top side of the hood. To remove the blower housing(s), un-snap the suitcase
latches (B) (one on each side of the housing). The housing(s) should be pulled forward and gently "tipped" to
clear the blower wheels and then out of the hood.
Blower Wheel
Blower Housing
Remove the three screws retaining the blower motors.
Unplug and remove the motors, taking care not to
damage the blower wheels. It is not necessary to
remove the blower wheel from the motor.
Warning: Make sure power is off and locked at the service disconnecting
means on the service panel during installation.
8)
9)
10)
Install an appropriate 1/2" UL listed electrical wire clamp through each motor box electrical opening on top of
the hood. Pre-install electrical wiring from the service panel to the hood location for each motor box. Consult
the connection diagrams (on previous page) for further details on electrical placement. Extend wire to the
Model
B200Duel
Type Volts Amps HZ RPM CFM Equivalent CFM CFM CFM MinimumRound Square
[email protected]" CFM [email protected]"[email protected]"[email protected]" DuctSize Inches
ShadedPole 115 1.7,, 60 1550 300 450 286 270 240 6"(orequivalent} 28
(2)ShadedPale 115 3.4. 60 ]550 600 900 572 540 480 8" (orequivolenl} 50
ONote: Add .5 amp for each halogen bulb. Equivalent CFM refers to the fact that the Magic Lung blower uses centrifugal filtration units,
whereas others use conventional filters. Apply this guideline when comparing blower units made by other manufacturers.
Remove the duct cover from its packaging. Remove and save the screws from the bottom of the duct cover.
Place the duct cover into the top of the hood. Attach the duct cover to the hood with the screws previously
removed. Lift the hood and hold in place on the wall in the location where it will be installed. Lightly mark
the wall with a short horizontal mark along the bottom edge of the hood.
Measure on the wall 9" above the mark made in Step 8 and lightly mark the wall with a level horizontal line.
Measure where the center (left to right) of the hood will be and mark the horizontal line on the wall with a
short vertical centerline.
Remove the screws inside the top of the back of the hood that retain the wood strip recessed in the mounting
channel. Note: Some retaining screws may be located behind the blower(s). Remove the wood mounting strip
from the back of the hood and place the top edge of the strip on the upper horizontal line on the wall.
Referencing the vertical centerline in Step 9, place the mounting strip so it is centered on the wall in the space
where the hood will be (left to right). Using proper hardware, attach the mounting strip to at least two wall studs.
Drill pilot holes in the strip to prevent splitting.
Page 4
(Rev. 07/07)

11)
12)
13)
14)
15)
16)
17)
18)
19)
Installation Details Continued
FOR BACK VENTING APPLICATIONS ONLY. IF NOT BACK VENTING, PROCEED DIRECTLY TO STEP 12.
Note: Wall studs may interfere with back venting installations. Additional framing may be required.
It is necessary to cut a duct access hole in the wall prior to installing the hood. To accomplish this, first remove
and set aside the duct cover that was previously installed in Step 8. Hold the hood on the mounting strip by
aligning the channel at the top of the back of the hood over the wood mounting strip on the wall. Place the
appropriate elbow(s) on top of the hood in line with the hood exhaust collar(s). On the wall, trace around the
elbow(s). Remove the hood and elbow(s) from the wall. Cut around the outside of the traced line(s), avoiding
wall studs. Install the duct from the outside of the home to the opening in the wall. Use duct tape to seal joints.
Place the duct cover back into the top of the hood and reattach to the hood.
Hang the hood on the mounting strip by aligning the channel at the top of the back of the hood over the wood
mounting strip on the wall. While holding the hood in place, mark locations on the mounting strip through the
two mounting holes in the channel at the top of the hood. Some mounting holes may be located behind the
blower(s). Remove hood and drill 3132" pilot holes at the center of marks in the wood strip to prevent splitting.
FOR BACK VENTING APPLICATIONS ONLY. IF NOT BACK VENTING, PROCEED DIRECTLY TO STEP 14.
Place the appropriate back vent elbow(s) on the top of the hood. Elbow(s) should be placed inside the collar(s)
of the exhaust outlet(s). Use duct tape to seal joint(s).
Insert the electrical wire from the service panel through the electrical wire clamp on each motor box.
Tighten the wire clamp(s).
Lift the hood into position while taking care to align the duct connection between the hood and the wall.
Secure the hood to the mounting strip by installing the screws (removed from the strip in Step 10) into the
pilot holes drilled in Step 12. Secure the slack in the electrical wire.
SKIP STEPS 14AND 15. PROCEED DIRECTLYTO STEP 16.
If applicable, install transition inside the exhaust collars and seal with duct tape. Insert the electrical wire from
the service panel through the electrical wire clamp(s) on each motor box. Tighten the wire clamp(s). Cut a
piece of duct the length of the duct cover allowing room for the transition on the top of the hood (if applicable).
If a transition is used, cut the duct to reach the transition outlet plus 1". This will allow the transition to engage
1" inside of the duct. See Page 3 for transition heights. One end of the duct must be crimped to fit inside the
duct in the ceiling. Insert non-crimped end over the transition or into the exhaust collar on top of the hood and
seal with duct tape.
Lift the hood into position while aligning the duct connection between the hood and the duct in the ceiling.
Secure the hood to the mounting strip by installing the screws (removed from the strip in Step 10) into the pilot
holes drilled in Step 12. Secure the slack in the electrical wire.
Using UL listed wire nuts, attach the "neutral" wire(s) to the white lead(s), the "hot" wire(s) to the black lead(s),
and the ground wire(s) to the green lead(s) inside the motor box(es).
I warning: Do not operate hood without proper ground connection.
Plug the motors into the hood and reinstall the blower motors using the three retaining screws that were
removed in Step 6.
Replace the blower housing(s) and the blower shield(s). Make sure the dampers open and close smoothly.
Refer to the Owner Maintenance Guide Operating Instructions for proper hood operation. Test all blower and
light functions to ensure they are operating properly.
Page 5
(Rev. 07/07)

VENTING
WALL LOUVER
8 5_'_,_]X11/2" FLANGE
6"ei'
MODEL DIM
VP526 6" RE)
V'P527 7" RD
VP528 8" RD
VP538 6"'x8 1/2"
LOW PROFILE ROOF JACK
(MAXIMUM 4/12 PITCH)
WALL LOUVER
;_:_l,,| 112"FLANGE
|| .L_
MODEL DIM
VP554 i0" RD
WALL LOUVER
MODEL DIM
VP555 12" RD
ACCESSORIES
WALL LOUVER
_2"FLANGE
3|i4'
MODEl, DIM
VP560 3 1/4"xl0"
LOW PROFILE ROOF JACK
(MAXIMUM4/12 PITCH) ADJUSTABLE ELBOW
i_ ___°,7",8"ROUN D
BACK/SIDE VENT
ELBOW
MODEL DIM
VP539 6"
VP540 7"
VP541 8"
BACK VENT ELBOW
_L
4__ _ 31/4"
_ .............1_" '
'_-3114'_
MODEL DIM
VP552 I0"
VP553 12"
MULTI-BLOWER TRANSITION
10"RD
_12"RD_
17112" VP562
VP563
t,- 4 I_ *l
MODEL DIM
VP513 6"
_514 7"
VP515 8"
MODEL
"Y" TRANSITION
_1o",12:1
18"
DIM
ROUND
MODEL DIM
VP561 8"- 6" x 8 1/2"
10 TO 7 TRANSITION
!'- 7"
MODEL DIM
VP559 3 l/4"Xl0"
OFFSET KIT-ROUND
"T
1V
.3_
MODEL DI2_I
VP529 6" TO 7"
OFFSET L & R TRANSITION
FOR ISLAND BLOWERS
MODEL DIM
VP542 TOP LEFT ISLAND
VP543 TOP RIGHT ISLAND
ROUND DUCT
"( ()
6",7",8"
MODEL DIM
VP500 6"
VP501 7"
VP502 8"
8"RD VP562) 6"RD _P562)
8 RD VP563) 8"RD_P_3)
MODEL DIM
VP562 10"
VP563 12"
OFFSET KIT-RECTANGLE
31t4_v
T_ 4 lo',.I
|1°_ -- iv ---*1
.L_)
MODEl, DIM
VP550 6"-3 l/4"xlO"
SIDE VENT TRANSITION L & R
FOR ISLAND HOODS
MODEL DIM
VP544 LEFT SIDE
VP545 R1GHT SIDE
3 1/4" RECTANGLE DUCT
MODEL DIM
VPS04 3 1/4"x 10"
VP505 3 li4"x 12"
VP506 3 l/4"x 16"
VP517 8" x 8"- 12"
VP5!8 6" x 8"- 12"
VP551 6" x 8"- 10"
STANDARD ISLAND
TRANSITION
-._5 ,_
MODEl.
VP565
ROUND COLLAR
=m
6_,8_ 2"MORETH_
HOLEDIA,
JL ._L
2'MORE
_THANHOLE_
DIA.
MODEl, DIM
VP533 6"
VP535 8"
6" RECTANGLE DUCT
o.(" 24,, .
MODEL DIM
VP507 6"x 8 1/2"
Page6
(Rev. 07/07)
MODEL DIM
VP521 3 1/4"x 10"-7"
CLUSTER BLOWER
TRANSITION
11I/4°
8"RO "
_, 8"RD "1
MODEL 181/2.
VP564
COLLAR, SQUARE
9"6_ ['_
;,F 81/2"--4I
MODEL DIM
VP537 6x81/2"