Accurex Waterwash Hood User Manual
Part #
Waterwash Hoods
Installation, Operation and Maintenance Manual
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the
product described. Protect yourself and others by observing all safety information. Failure to comply with instructions
could result in personal injury and/or property damage! Retain instructions for future reference.
Waterwash Hoods
TABLE OF CONTENTS
How To Use This Manual .................................................................... 4
Receiving and Handling ..................................................................... 4
Storage .................................................................................. 4
Waterwash System Function ................................................................. 4
Waterwash Components..................................................................... 5
Typical Installation ......................................................................... 5
Continuous Capture Plenum ........................................................... 8
Double Island Style Hood ............................................................. 9
U Channel Strips..................................................................... 9
Ductwork.......................................................................... 10
Installation Instructions for the External Supply Plenums.......................................... 11
Installation Instructions for the Backsupply Plenum BSP.......................................... 13
Installing the Supply Duct Collar ....................................................... 13
Hanging the Backsupply Unit ......................................................... 13
Hanging the Hood .................................................................. 14
Air Diffusers ....................................................................... 14
Enclosure Panel Installation Instructions.......................................................15
Filler Panel Installation Instructions ........................................................... 16
End Skirt Installation Instructions............................................................. 17
Backsplash Panel Installation Instructions ..................................................... 18
Duct Collar Installation Instructions for XB, XW, XK and XX Series Hoods ............................ 20
Plumbing ................................................................................ 21
Electrical Connections ..................................................................... 23
Electrical Wiring .................................................................... 23
Startup, 24/7 Timer, Pump Settings, Detergent Operation .................................. 25
Daily Operation of Waterwash Hood....................................................27
Sequence of Operation ............................................................28-29
Balancing the Kitchen Exhaust............................................................... 31
Short Circuit Hoods ................................................................. 34
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October 2010
TABLE OF CONTENTS CONT’D
Field Wiring for Ansul Snap-Action Switch ..................................................... 35
Overall Wiring Plan View .................................................................... 36
Wiring for Hood Switch Panels............................................................... 37
Circuit Diagram ........................................................................... 38
Waterwash Control Panel .................................................................39-44
Maintenance ............................................................................. 45
Troubleshooting Guide ...................................................................45-49
Replacement Parts/Kits ..................................................................50-51
Waterwash Start-up Checklist .............................................................52-53
Notes for Maintenance Checks ............................................................54-55
Warranty ................................................................................ 56
October 2010
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3
HOW TO USE THIS MANUAL
Read and save these instructions. This manual is designed to assist qualified field service, operating and
maintenance personnel with the installation, operation, and maintenance of Accurex canopy type kitchen hoods
and accessories.
Procedures described in this manual should be followed in the order they appear, with attention to all safety and
caution statements.
RECEIVING, HANDLING & STORAGE:
Upon receiving the equipment, check for both obvious and hidden damage. If damage is found, record all
necessary information on the bill of lading and file a claim with the final carrier. Check also to be sure that all
parts of the shipment, including accessories, are accounted for.
If a kitchen hood must be stored prior to installation, (or for any long period) it must be protected from dirt and
moisture. Indoor storage is recommended. For outdoor storage, cover the hood with a tarp to keep it clean, dry,
and protected from UV (Ultra Violet) radiation damage.
NOTE: The kitchen hood is shipped with a plastic film attached to the surface. The film is to protect the panels
from minor scratches during handling and shipment. This film must be removed prior to assembling the system.
When the system is operating, the film will melt and bake on to the surface. Once the film is removed caution
should be used in handling the parts.
Improper storage which results in damage to the unit will void the warranty.
WATERWASH SYSTEM FUNCTIONS:
Accurex waterwash hoods are designed for three primary functions:
1) Capture and contain the effluent produced by the cooking process.
2) Remove grease and other contaminants from the airstream with a series of extraction baffles.
3) Wash the baffles and other surfaces within the exhaust plenum to remove contaminants.
NOTE: The functions listed above require the control center to be wired to the exhaust fan and plumbed.
Normal Exhaust Operation and Contaminant Collection:
The system’s exhaust fan is manually controlled by a push-button switch (Start Fan) located on the face of the
waterwash control station. The exhaust system operates until the Stop Fan/Start Wash push-button switch is
pressed.
Optional Continuous Cold Water Mist:
The optional continuous cold water mist is controlled by the same push-button switch (Start Fan). With this
option, all hoods with this option are sprayed continuously when the fan is on. This feature acts as a spark
arrestor for solid fuel applications, as per NFPA 96, Standard for Ventilation Control and Fire Protection of
Commercial Cooking Operations. This does not have to be all hoods - can be just the solid fuel hoods.
Cleaning Cycle:
A factory programmed controller triggers the waterwash function when the exhaust fans are shut down at the
end of each day’s cooking operations. A pressurized spray of hot water and detergent cleans the hood in a
timed cycle. When the cleaning cycle is complete, the controller runs the exhaust fans briefly to remove steam
from the exhaust system. The controller then automatically resets itself. If the kitchen is closed for a day, the
wash cycle will skip as long as the start fan button has not been pushed.
For multiple hoods totalling over 20 ft. 0 in. in length, systems are designed to wash each hood or group of
hoods sequentially. (Hoods totalling up to 20 ft.0 in. in length can be washed as a single unit.)
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October 2010
Fire Mode (Optional):
The waterwash system also provides water spray for the exhaust plenum when the system is in fire mode. This
is in addition to the hood’s automatic fire suppression system. When the fire suppression system discharges,
it activates the waterwash system (without the detergent) and the optional continuous cold water mist to spray
water within the exhaust plenum and turns on the fan circuit. The system will shut off when the fire protection
system is reset. It can also be shut off manually by turning off the water flow in the waterwash control station.
Exhaust fan will be on, Supply fan off
Typical Installation:
Fig. 1
Vacuum Breaker
Detergent Line
Wiring to:
115 VAC 20 AMP service
Fire Sup. System NC Switch
Fan Control Center
Opt. Solenoid Valve
for Seq. Wash
Optional Continuous Cold
Water Mist Supply Line
Hot Water/Detergent to Hood
Detergent Check Valve
Internal components of hood
and control station are factory
piped and wired. All external
piping and wiring is by others.
Exhaust Duct Collar
Waterwash Hood
Junction Box Hood Lights
Hot Water Supply
to Control Station
October 2010
Waterwash
Control Station
Optional
Cold Water Supply
to Control Station
Drain Pipe
The system shown includes
a vacuum breaker for
backflow prevention. Some
state plumbing codes
require a reduced pressure
backflow preventer. See
page 7 for detailed control
panel layouts of each type.
5
5
SYSTEM COMPONENTS:
Hood:
The hood is shipped from the factory prepiped and ready to install. All waterwash components within the hood
are complete and ready for connection to hot water, electrical sources, the sanitary sewer drain and optional
cold water. All piping to and from the waterwash control station and the hood is by others. Wiring from the
control panel to the hood (for lights) is by others. All plumbing and wiring must conform to plumbing and
electrical codes. See Figure 1(previous page) for typical installation and location of electrical and plumbing
components.
Duct collars are also mounted at the factory unless requested otherwise.
Waterwash Control Station:
The waterwash control station contains all of the water and electrical controls in two separate compartments.
(See Figs. 2, 3, 4, 5, 6 & 7). The electrical side includes all electrical components, connections, and on/off
switches. These switches are illuminated and are mounted on the face of the cabinet. The water side includes
hot water connections, pressure/temperature gauges, the detergent reservoir and pump, water hammer arrestor,
the water solenoid valves, and optional continuous cold water mist piping.
Vacuum Breaker (shipped loose for field installation):
The vacuum breaker is installed at the highest point in the system’s piping to prevent backflow when there is no
water pressure to the hood. It must be installed a minimum of 6 in. above the hood water supply line
(See Figs. 2, 3 & 4).
Reduced Pressure Backflow Preventer - RPBP (shipped loose for field installation):
Where building codes require a reduced pressure backflow preventer, it will be provided in lieu of a vacuum
breaker when ordered. The reduced pressure backflow preventer is installed beneath the control panel (See
Fig. 5, 6 & 7). May by ordered mounted in 48 in. tall cabinet.
Detergent Pump-Related Components (shipped loose for field installation—installed
in RPBP systems. See page 42 ):
•Detergentlinecheckvalve
•Detergenttube(1/4in.I.D.,3/8in.O.D.)
Optional Features:
24 Hour / 7 Day Timer:
This feature allows the cleaning cycle to begin at any preset time after the fans are shut down, rather than
immediately after. This allows time, for instance, for completion of dishwashing to avoid a shortage of hot water.
Fans must be turned OFF just as with the standard cleaning cycle. Maximum six start times.
Multiple Hoods Sequenced Wash:
Where more than one hood must be washed, the control station is set up to wash each hood individually in a
prescribed sequence. This ensures that there will be adequate hot water for all hoods. Individual water solenoid
valves are provided for each hood to be washed in a multiple sequence. Maximum five sequences.
(Sequence solenoid valves are shipped loose for systems with vacuum breakers or optional continuous
cold water mist. They are mounted in the control station for standard systems with reduced pressure
backflow preventers.)
Low Detergent Indicator Light:
A sensor and indicator light are available to alert the operator when the detergent tank requires filling.
Continuous Cold Water Mist:
This feature continuously sprays a fine water mist in the exhaust plenum of the hood. The continuous cold water
mist is controlled by the same push button switch as the fan.
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October 2010
Fig. 2 Std. Piping with Vacuum Breakers
To Hood
3/4 in. or 1 in.
Piping
Connection
by
Others
Optional Low
Detergent
Indicator Light
Fire Mode
Indicator Light
Hood Lights
Stop Fan/Start Wash Switch
Hot Water Inlet
Start Fan
Switch
Fig. 5 Std. Piping with Reduced Pressure
Backflow Preventer
Disconnect
Switches
Field Wiring
Terminal Strip
Fan Relay
Optional 24
Hour Timer
Fuse Block
Factory Wiring
Terminal Strip
Programmable
Piping by
Controller
others
Vacuum Breaker
Detergent
Check Valve
Union
Detergent
Pump
Water
Solenoid Valve
Water Hammer
Arrestor
Pressure and
Temperature
Gauge
6 in.
Fig. 3 Optional
Piping for
Sequence Wash
Water Solenoid
Valve(s)
To Hood
3/4 in. or 1 in. Connection
6 in.
To Hood 3/8
in. Connection
Solenoid Valve
Pressure
Gauge
Detergent
Injection Point
Pressure
Reducing Valve
and Strainer
Hand Valve
Reduced Pressure
Backflow Preventer
Fig. 6 Optional
Piping for
Water
Sequence Wash
Solenoid
Valve(s)
To Hood
3/4 in. or 1 in. Connection
Hand Valve
Detergent Tank
Fig. 4 Piping with Vacuum Breakers and
Optional Continuous Cold Water Mist
October 2010
Cold Water Inlet
Detergent
Line Strainer
Fig. 7 Piping with Reduced Pressure
Backflow Preventer and Optional
Continuous Cold Water Mist
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7
2. RAISE ALL HOODS INTO APPROPRIATE LOCATION
AND
SUPPO
RT PER CONSTRUCTION PLAN
S.
3. FASTEN TOP ANGLES TOGETHER USING 1/4 in. BOLTS & NUTS (BY OTHERS
).
4. FASTEN HOODS TOGETHER USING U-CLIPS, 1/4 in. BOLT
S
5. CAULK ALL SEAMS AS NECESSARY
.
& CAP NUTS AS INDICATED
.
1. REMOVE SUPPORT ANGLE ON OPEN END PANEL
.
H
OOD
ACO
RN N
UT
BOL
T
U-CLIP
CAULK
H
OOD
RN N
UT
BOL
T
-CLI
P
AUL
K
Front
1
/2 in. threaded rod by
Note: If a utility distribution system (UDS) is part of the kitchen package, allow adequate room for it before
mounting hood(s) and welding ductwork. Check construction documents.
Fig. 8
INSTALLATION
NOTE: If you have a Backsupply
Plenum (BSP), this must be
installed before the hood. Please
Bottom
Pallet
Protective Material
Carefully remove the packing crate. Place some protective material on the floor next to the crate to avoid
damaging the hood as it is tipped on its side. (See Fig. 8) Tip the hood carefully onto the protective material.
If you have filler panels, install them now. Please see page 16. If you have integral filler panels, no
additional installation is needed.
Insert 1Ú2 in. diameter threaded rod (by others) into hanger brackets on hood top. (Fig. 9, Pg. 10) Check the
engineering drawings for proper hood height above finished floor. Accurex recommends that the hoods be hung
6 feet 6 inches above the finished floor. Raise and hang hood from adequate roof or ceiling supports. All hanger
brackets must be used and hood must be properly supported while lifting to prevent damage or distortion to the
hood. The hood must be hung level to or slightly pitched toward the grease drain.
Hood Model Width (in feet)
see Page 13.
For Wall/Single Island Style Hoods,
prior to installation, check with
local authorities having jurisdiction
on clearances to combustible
surfaces, etc.
With the hood still inside its
packing crate, position the unit
beneath its installation location.
Wall Canopy 4 4.5 5 5.5
XWEW 53 lbs/ft. 56 lbs/ft. 59 lbs/ft. 62 lbs/ft.
XWFW 60 lbs/ft. 60 lbs/ft. 62 lbs/ft. NA
XWAW NA 60 lbs/ft. 65 lbs/ft. 70 lbs/ft.
XWCW NA 65 lbs/ft. 70 lbs/ft. 75 lbs/ft.
XWSW 60 lbs/ft. 65 lbs/ft. 70 lbs/ft. 75 lbs/ft.
For double island hoods, multiply the weight by two.
Continuous Capture Plenum Hoods
Remove the support angles on the open end panels.
(See Fig. 8A) Use the installation procedure described
above, for single island hoods to install and level both
hoods. After leveling, secure the hoods together by
tack welding and/or bolting the top angles. Fasten the
hoods together using u-clips and bolts. (See Fig. 8B)
Caulk this joint with NSF approved silicone caulk (GE
SCS-1009 or its equivalent). The caulk is not provided.
Fig. 8A
Fig. 8B
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October 2010
Double Island Style Hoods
HOOD FRONT
ITEM-1B
DOUBLE ISLAND
CLIP
ITEM-1A
HOOD FRONT
ITEM-1B
DOUBLE ISLAND
ITEM-1A
Before hanging the hoods, please verify the hood marks to make sure the correct hood is
hung on the correct side.
A double island hood is created by installing two wall style hoods back to back. Use the installation procedure
described on page 8, for single island hoods to install and level both hoods. After leveling, secure the hoods
together by tack welding and/or bolting the rear mounting brackets. Caulk this joint with NSF approved silicone
caulk (GE SCS-1009 or its equivalent). The caulk is not provided.
Installing U Channel Trim Strip
1. After the hood is hung in position
and leveled, apply caulk to the
inside edge of the double island clip
(see detail).
2. Position and install the clip by
tapping into position along clip
(friction fit).
3. Caulk edges to seal out grease and
allow for ease of cleaning. Caulk with
NSF approved silicone caulk (GE SCS-
1009 or its equivalent). The caulk is not
provided.
HOOD-1A
HOOD-1B
SILICONE CAULK
(GE SCS 1009)
DOUBLE ISLAND
CLIP
Note: The installation of the canopy hoods shall be in accordance with NFPA 96 (latest edition), Removal of
Smoke and Grease-laden Vapors from Commercial Cooking Equipment.
See separate instructions for proper installation of enclosure panels, backsplash panels, and end skirts when
provided. Please see Pages 15 -19 for the installation instructions.
After the hood is installed, remove all protective plastic.
Note: Accurex does not recommend walking or standing on the hood top as damage can result. If you must walk
on the hood top, protect the hood with additional support or planks for flooring.
October 2010
9
9
DUCTWORK
1
/2 in. threaded rod by
others
Exhaust
Fig. 9
As specified in NFPA 96, Ch. 7.5 (latest
edition), exhaust duct systems must be
constructed in the following manner:
Materials. Ducts shall be constructed
of and supported by carbon steel not
less than 1.37mm (.054 in.) (No. 16 MSG)
Fig. 2
in thickness or stainless steel not less
than 1.09mm (0.043 in.) (No. 18 MSG) in
thickness.
Front
Installation: All seams, joints, penetrations, and duct to hood collar connections shall have a liquid tight
external weld. If you have an Automatic Fire Damper please refer to that manual for installation
instructions.
Supply
Supply ductwork (where applicable) should be connected to the hood in a manner approved by the local code
authorities.
Note: For hoods with fire dampers in the exhaust and supply duct collars, an access panel for cleaning and
inspection shall be provided in the duct. This panel shall be as close to the hood as possible and not exceed 18
inches from any hood damper.
For proper installation of duct collars when they are shipped unattached, see page 20.
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October 2010
INSTALLATION INSTRUCTIONS FOR EXTERNAL SUPPLY PLENUMS
HANGER BRACKET
END VIEW
THREADED ROD
HOOD
ATTACH HANGING CLIP TO
HOOD STANDING SEAM WITH
THE SUPPLIED "C" CLAMPS
(OPTIONAL: DRILL AND BOLT A
1/4-20 SS BOLT THROUGH
THE CLIP AND HOOD STANDING
SEAM)
HANGING METHODS FOR SUPPLY PLENUMS
ASP, FSP AND VSP
TOP VIEW
HOOD
TOP VIEW
SUPPLY PLENUM
2 CLIPS ARE NEEDED
3 CLIPS ARE NEEDED
FOR PLENUMS > 96"
FOR PLENUMS <= 96"
THE THIRD CLIP IS LOCATED
IN THE CENTER OF THE PLENUM
LENGTH
THREADED ROD
OPTION #3
OPTION #1
ON THE END OF THE HOOD
HANGING CLIP COULD BE 23.5" FROM
END IF THERE IS A UTILITY CABINET
OPTION #1
OPTION #1
THE HOOD AND IS MOUNTED TO THE ASP
HOOD UP CANTILEVERS OVER THE END OF
THE UNI-STRUT (U-CHANNEL) THAT HOLDS THE
HANGER BRACKETS
OPTION #2
OPTION #2
UNI-STRUT SUPPLIED BY OTHERS
OPTION #1 = HANGING CLIP
OPTION #2 = UNI-STRUT
OPTION #3 = THREADED ROD
OPTIONAL UTILITY CABINET
SUPPLIED BY OTHERS
ASP, FSP, VSP
11.5
23.5
END VIEW
THREADED ROD
HOOD
ATTACH HANGING CLIP TO
HOOD STANDING SEAM WITH
THE SUPPLIED "C" CLAMPS
(OPTIONAL: DRILL AND BOLT A
1/4-20 SS BOLT THROUGH
THE CLIP AND HOOD STANDING
SEAM)
HANGING METHODS FOR SUPPLY PLENUMS
ASP, FSP AND VSP
TOP VIEW
HOOD
2 CLIPS ARE NEEDED
3 CLIPS ARE NEEDED
FOR PLENUMS > 96"
FOR PLENUMS <= 96"
THE THIRD CLIP IS LOCATED
IN THE CENTER OF THE PLENUM
LENGTH
THREADED ROD
OPTION #3
OPTION #1
OPTION #1
THE HOOD AND IS MOUNTED TO THE ASP
HOOD UP CANTILEVERS OVER THE END OF
THE UNI-STRUT (U-CHANNEL) THAT HOLDS THE
HANGER BRACKETS
OPTION #2
OPTION #2
UNI-STRUT SUPPLIED BY OTHERS
OPTION #1 = HANGING CLIP
OPTION #2 = UNI-STRUT
OPTION #3 = THREADED ROD
OPTIONAL UTILITY CABINET
SUPPLIED BY OTHERS
ASP, FSP, VSP
11.5
USING THE SUPPLY PLENUM CLIP or UNI STRUT
OPTION #1
HANGING CLIP COULD BE 23.5" FROM
END IF THERE IS A UTILITY CABINET
ON THE END OF THE HOOD
OPTIONAL UTILITY CABINET
11.5
23.5
OPTION #2
UNI-STRUT SUPPLIED BY OTHERS
TOP VIEW
HOOD
OPTION #1
FOR PLENUMS <= 96"
2 CLIPS ARE NEEDED
FOR PLENUMS > 96"
3 CLIPS ARE NEEDED
THE THIRD CLIP IS LOCATED
IN THE CENTER OF THE PLENUM
LENGTH
OPTION #1
ATTACH HANGING CLIP TO
HOOD STANDING SEAM WITH
THE SUPPLIED "C" CLAMPS
(OPTIONAL: DRILL AND BOLT A
1/4-20 SS BOLT THROUGH
THE CLIP AND HOOD STANDING
SEAM)
TOP VIEW
SUPPLY PLENUM
HANGER BRACKET
Using the Supply Plenum Clip
1. Bolt the hanging clip to the supply
plenum - 2 clips are needed for plenums
less than 96 in. long and 3 for plenums
greater than 96 in. The third clip is
located in the center of the plenum
length. If there is a utility cabinet, the
hanging clip should be 23.5 in. from the
end to the hood.
2. Using the C-Clamps provided, clamp the
supply plenum hanging clip to the hood
standing seam. Option: Drill and bolt a
1/4-20 SS bolt through the clip and hood
standing seam.
"C" CLAMP
HOOD FRONT
HOOD STANDING SEAM
HANGING CLIP BOLTED TO PLENUM SHELL
HANGING CLIP
SUPPLY PLENUM SHELL
OPTION #1
HANGING CLIP
October 2010
Supply Plenum Clip
Using the UNI-STRUT
1. The uni-strut (supplied by
others) that holds the hood up
cantilevers over the end of the
hood and is mounted to the
supply plenum hanger brackets.
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11
INSTALLATION INSTRUCTIONS FOR EXTERNAL SUPPLY PLENUMS
BACKSUPPLY BACKSHELF HOODBACKSUPPLY CANOPY STYLE HOODBACKSUPPLY CANOPY STYLE HOOD
ATTACHED AIR CURTAIN CANOPY STYLE HOOD ATTACHED AIR CURTAIN CANOPY STYLE HOOD
BACKSUPPLY BACKSHELF HOODBACKSUPPLY CANOPY STYLE HOODBACKSUPPLY CANOPY STYLE HOOD
1/4 in.
SS NUT
1/4 - 20 UNC - 2A
SS BOLT
SS FLAT WASHER
HOOD
HOLE SIZE 9/32 in.
USING A THREADED ROD
Installing External Supply Plenum
1. Insert 1Ú2 in. diameter threaded rod (by others) into
hanger brackets on the supply plenum top. Raise and
hang the external supply plenum from adequate roof or
ceiling supports.
2. The external supply plenum should be resting lightly
against the hood. The hood is used to position the plenum
only, it is not intended to support the plenum. All hanger
brackets must be used and the plenum must be properly
supported while lifting to prevent damage or distortion.
ASP - Air Curtain Supply Plenum
The supply plenum must be hung level to operate properly.
(Optional fastening of supply plenum to hood - see
directions below)
3. It is recommended that caulk be applied at the mating
seams and surfaces of the plenum, the hood, and the wall.
If the supply plenum is next to a wall, you will also need to
caulk around the surface next to the wall. Caulk the joints
with NSF approved silicone caulk (GE SCS-1009, or its
equivalent). The caulk is not provided.
Installing the Supply Duct Collar to the Plenum
1. Place the duct collar(s) over the opening, fastening with
tack welds at 1 in. to 2 in. intervals, or sheet metal screws
at 3 in. to 6 in. intervals.
VSP - Variable Supply Plenum
SUPPLY PLENUM WEIGHTS
Hood Height 24 in. 24 in. 30 in. 30 in.
Hanging Height 78 in. 84 in. 78 in. 84 in.
ASP 9.5 lbs/ft. 11.7 lbs/ft. 11.7 lbs/ft. 13.9 lbs/ft.
VSP 16.5 lbs/ft. 18.7 lbs/ft. 18.7 lbs/ft. 20.9 lbs/ft.
BSP 42 lbs/ft. 42.2 lbs/ft. 42.2 lbs/ft. 44.4 lbs/ft.
Using the UL Listed Fastener Provided
1. Drill a 9/32 in. hole for the 1/4 in. bolt from the inside of the
supply plenum to inside the hood. Fasteners are to be located
max. 6 in. from the end of the hood with max. spacing
between bolts 36 in.
DO NOT include utility cabinets or fillers when figuring bolt
placement.
DO NOT bolt the supply plenum to a fire/utility cabinet.
2. Push bolt through hole, using the washer and nut.
3. Hand tighten, then use a wrench until fully tightened. Caulk
around bolts from inside of hood as necessary.
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12
October 2010
TEP
2
W (MODULE WIDTH
)
W
/2
W
/4
W
/4
TEP
1
IF MODULE > 6 ft.
)
4 in. TO 6 in
.
FASTEN WITH SCREWS, OR TACK WELDS EVER
Y
PLACE THE DUCT COLLAR OVER THE OPENING
,
TEP
2
INSTALLATION INSTRUCTIONS FOR THE BACKSUPPLY PLENUM BSP
W (MODULE WIDTH
)
W
/2
W
/2
W
/2
(MODULE WIDTH
)
W
W
/4
W
/4
TEP
1
IF MODULE > 6 ft.
)
IF MODULE < 6 ft.
)
TEP
1
4 in. TO 6 in
.
FASTEN WITH SCREWS, OR TACK WELD
S
Y
PLACE THE DUCT COLLAR OVER THE OPENING
,
TEP
2
Installing the Supply Duct Collar
1. Find the center of the Backsupply Plenum.
2. If the Backsupply Plenum is less than 9 ft. 10 in. wide, cut opening at
the suggested location, centering the opening over the center of the
backsupply Plenum. (see Fig. 10A)
3. If the Backsupply Plenum is greater than 9 ft. 10 in. wide, divide the
width of the backsupply by four. This will give you the center of each
half. Cut openings at the suggested location, centering the duct collar
over the center measurement of each half. (see Fig. 10B)
4. Place the duct collar(s) over the opening, fastening with screws or tack
welds every four to six inches. (see Fig. 11)
Fig. 10A
Fig. 10B
• The4in.highduct
collar is to be attached
to the backsupply.
Fig. 11
Hanging the Backsupply Plenum
5. Hang the Backsupply Plenum from the ceiling.
(The Backsupply Plenum needs to be mounted 31.25 in. above the floor (based upon a canopy hood that will
be hung at 6 ft. 6 in. above the finished floor. This is measured from the lowest rear edge of the Backsupply
Plenum to the finished floor. Leave 6 to 10 inches of space below the plenum for access to the air diffusers.)
6. Fasten the Backsupply to the wall, going through the lower Backsupply wall. (See Fig. 12)
• These fasteners are to help maintain the location of the Backsupply, and are not intended to hold the weight
of the Backsupply Unit.
• The fasteners should not interfere with the removable air diffusers.
• The 31.25 in. height is based upon the canopy hood hanging height of 78 in. from the finished floor to the
bottom of the hood.
October 2010
13
13
STEP 3
Furnished by Others
0.500 in. Threaded &
0.500 in. Threaded Nuts
(Furnished by Others)
Hanger Bracket Detail
1) Hang Backsupply Modules from the
ceiling (the example shows the module
being supported with threaded rod)
The backsupply is to be 31.25 in. from the
floor. This is measured from the lowest
rear edge of the backsupply module to the
finished floor.
2) Fasten backsupply to wall through the
lower backsupply wall. These fasteners
are to help maintain location of the
backsupply, and are NOT intended to hold
any weight of the unit. Fasteners should
not interfere with the removable air diffuser.
31.25 in.
Critical
Dimension
Fasteners holding the
backsupply to the wall
Hanging the Hood
HANG THE H
OOD
INSTRUCTIONS, THE HOOD MAY BE FASTENED TO THE BACKSUPPLY
.
5. CONNECT REMAINING DUCTWORK FOR THE BACKSUPPLY AND TH
E
HOOD. CAULK IS RECOMMENDED TO BE APPLIED AT THE MATIN
G
4. LIFT THE HOOD; POSITION IT SO THE TOP OF TH
E
HOOD IS LEVEL WITH THE TOP OF THE BACKSUPPLY; AFTE
R
THE HOOD IS HUNG FROM THE CEILING AS PER IT'S INSTALLATI
ON
1. THE HOOD IS TO BE HUNG AS PER THE HOODS INSTALLATI
ON
HOULD BE CONNECTED BEFORE THE HOOD IS HUN
G.
3. DUCTWORK FOR THE BACKSUPPLY; IF IT WILL NOT INTERFERE
,
2. BEFORE THE HOOD IS HUNG THE BACKSUPPLY MUST BE SECURE
D
INSTRUCTIONS AND THE FOLLOWIN
G.
PROPERLY, AS DESCRIBED IN "STEP 3 in
.
TEP
4
STEP 5
Air Diffusers
(A) Insert the air diffusers at an angle from the bottom.
(B) Rotate the diffusers so the forms are downward.
(C) Rest the diffuser on the internal angles.
Canopy Style Hood
Removable Air Diffusers
Before hanging the hood according to the hood
installation instructions, please check the following:
1. Make sure the Backsupply Plenum is properly
secured, as described in steps 5 and 6, page 13.
2. If the ductwork for the Backsupply will not
interfere with the hood installation, it should be
connected now.
3. Any filler panels should be attached to the hood
before the hood installation. See page 16 for
instructions.
4. For Canopy Hoods: Lift the hood, and position
it so the filler panels are resting lightly on the
top outside edges of the Backsupply. The
Backsupply is used to position the hood only,
it is not intended to hold any hood weight. (See
Fig. 13)
5. Connect the remaining ductwork for the
Backsupply and the hood. It is recommended
that caulk be applied at the mating seams and
surfaces of the Backsupply, the hood, and the
wall.
Fig. 12
Air Diffusers
The air diffusers, located at the bottom of the backsupply
(See Fig. 14), will need to be cleaned as often as the
application dictates. Inspect periodically to determine the
cleaning schedule.
1. To clean the air diffusers, unfasten the screws. Remove
the air diffusers from the Backsupply Unit, and wash in
the sink or dishwasher.
2. Insert the air diffusers at an angle from the bottom, and
rotate so the forms are downward. Rest the diffuser on
the internal angles. (See Fig. 15)
3. Refasten with the stainless steel screws.
Return to Page 8.
14
14
Fig. 13
Fig. 14
Fig. 15
October 2010
OSURE
OP
OSURE
S
L
E
.
H
S
ENCLOSURE PANEL INSTALLATION INSTRUCTIONS
Before installing the enclosure panels, make sure the hood is hung in position with all the ductwork attached
and electrical connections completed.
FRONT ENCL
FASTENERS TO WAL
BY OTHER
3/8 IN. DIA
HOL
ND ENCL
HOOD T
PANE
5/16 IN. BOLTS WIT
NUTS AND WASHER
LAMP
Fig. 16
1. Position the end enclosure panels on the hood, and clamp into place with clamps provided or tack weld the
panels into place (see Fig 16).
2. Fasten the end enclosure panels to the wall, method depends on wall construction. (fasteners are not
provided)
If the hood is a double island, bolt the end enclosure panels together. (fasteners are not provided)
3. Position the front enclosure panel(s) on the hood, and bolt to the end enclosure panels with the 5/16 in.
bolts provided in the hardware package.
4. Tack weld or clamp the front enclosure panel(s) to the hood. If clamps are used, they must be positioned
4 inches from the ends, and in the center of the front enclosure panel.
5. To allow for ease of cleaning, caulk the external seams with NSF Approved silicone caulk (GE SCS-1009, or
its equivalent). The caulk is not provided.
6. Installation instructions may not be applicable for concrete ceilings.
Return to Page 9.
October 2010
15
15
OO
G
L
H
S
CK
FILLER PANEL INSTALLATION INSTRUCTIONS
1. Uncrate the hood and
lay it on the floor with
protective material
between the hood and the
floor (See Fig. 8, page 8).
2. Bolt the filler panels
together with 5/16 in. bolts
provided in the hardware
package.
3. Position the filler panels to
the hood back, and tack
weld them into place (see
Fig. 17).
4. To allow for ease of
cleaning, caulk the
external seams with NSF
approved silicone caulk
(GE SCS-1009, or its
equivalent). The caulk is
not provided.
Fig. 17
H
HOOD
HOOD
D
Return to Page 8.
HT FILLER PANE
RI
TACKWELDED TO HOOD BA
5/16 IN. X 3/4 IN. BOLTS WIT
WASHERS & NUT
16
16
October 2010
END SKIRT INSTALLATION INSTRUCTIONS
1. After the hood is hung in position, slide the hemmed form on top of the end skirt onto the end panels of the
hood.
2. Drill a hole in the hood end panel to line up with the hole in the end skirt. Attach the end skirt with a 1/4 in.
bolt and cap nut to the inside of the hood, or tack weld the end skirt to the hood.
3. Position the end skirt against the wall and attach. The method depends on the wall construction. (fasteners
for this are not provided)
4. Caulk the internal joint formed by the end skirt and the hood end panel with NSF approved silicone caulk
(GE SCS-1009 or its equivalent). The caulk is not provided.
5. To allow for ease in cleaning, also caulk all the external seams.
Return to Page 9.
Fig. 18
October 2010
17
17
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