Greenheck Fan Ventilation Hood 452413 User Manual

PN 452413

Canopy Type Kitchen 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.

Please record the Serial, Model #, and Mark for the hood and other equipment for future reference.

Serial #: _______________________

Model #: ______________________

Mark: _________________

Canopy Hood

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Table of Contents

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Grease Grabber™ Cleaning and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 - 34

Filter Cleaning Frequency Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 - 37

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 - 39

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Canopy Hood

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Receiving and Handling

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 to be sure that all parts of

the shipment, including accessories, are accounted for.

STORAGE

If a kitchen hood must be stored prior to installation 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.

Improper storage which results in damage to the unit will void the warranty.

HOOD DEPTH (MULTIPLY BY LENGTH) FOR HOOD WEIGHT

HOOD

MODEL

3 ft.

3.5 ft

4 ft

4.5 ft

5 ft

5.5 ft

6.5 ft

7 ft

7.5 ft

6 ft

1.8288 m

.914 m

30 lbs/ ft.

1.067 m 1.2192 m 1.3716 m 1.524 m 1.6764 m

1.9812 m 2.1336 m 2.286 m

32 lbs/ft

35 lbs/ft

38 lbs/ft

40 lbs/ft

GH, GK,

GXEW

44.64

kg/m

47.62

kg/m

52.08

kg/m

56.54

kg/m

59.52

kg/m

36 lbs/ft

38 lbs/ft

41 lbs/ft

44 lbs/ft

46 lbs/ft

GH, GX,

GXDW

53.57

kg/m

56.44

kg/m

61.01

kg/m

65.47

kg/m

68.45

kg/m

40 lbs/ft

44 lbs/ft

48 lbs/ft

52 lbs/ft

GH, GK,

GXFW

59.52

kg/m

65.47

kg/m

71.42

kg/m

77.38

kg/m

48 lbs/ft

51 lbs/ft

54 lbs/ft

57 lbs/ft

GH, GK,

GXCW

71.42

kg/m

71.89

kg/m

81.35

kg/m

84.82

kg/m

44 lbs/ft

48 lbs/ft

52 lbs/ft

56 lbs/ft

GH, GK,

GXSW

65.47

kg/m

71.42

kg/m

77.38

kg/m

83.33

kg/m

39 lbs/ft

41 lbs/ft

44 lbs/ft

47 lbs/ft

49 lbs/ft

GGEW

GGDW

GGFW

GGCW

GGSW

58.03

kg/m

61.01

kg/m

65.47

kg/m

69.94

kg/m

72.91

kg/m

45 lbs/ft

47 lbs/ft

50 lbs/ft

53 lbs/ft

55 lbs/ft

66.96

kg/m

69.94

kg/m

74.40

kg/m

78.86

kg/m

81.84

kg/m

49 lbs/ft

53 lbs/ft

57 lbs/ft

61 lbs/ft

72.91

kg/m

78.86

kg/m

84.82

kg/m

90.77

kg/m

57 lbs/ft

60 lb/ft

63 lbs/ft

66 lbs/ft

84.82

kg/m

89.28

kg/m

93.74

kg/m

98.21

kg/m

53 lbs/ft

57 lbs/ft

61 lbs/ft

65 lbs/ft

78.86

kg/m

84.82

kg/m

90.77

kg/m

96.72

kg/m

52 lbs/ft

54 lbs/ft

56 lbs/ft

58 lbs/ft

61 lbs/ft

63 lbs/ft

GH, GK,

GXEV

77.38

kg/m

81.35

kg/m

83.33

kg/m

86.30

kg/m

90.77

kg/m

93.74

kg/m

61 lbs/ft

66 lbs/ft

68 lbs/ft

72 lbs/ft

75 lbs/ft

79 lbs/ft

GH, GK,

GXFV

90.77

kg/m

98.21

kg/m

101.18

kg/m

107.14

kg/m

111.6

kg/m

117.55

kg/m

81 lbs/ft

84 lbs/ft

87 lbs/ft

90 lbs/ft

GH, GK,

GXCV

120.53

kg/m

124.99

kg/m

129.46

kg/m

133.92

kg/m

66 lbs/ft

69 lbs/ft

72 lbs/ft

76 lbs/ft

79 lbs/ft

GH, GK,

GXSV

98.21

kg/m

102.67

kg/m

107.14

kg/m

113.09

kg/m

117.55

kg/m

Canopy Hood

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Installation

NOTE: If you have a Back

Supply Plenum (BSP), this must

be installed before the hood.

Please see Page 10.

Fig. 1

For Wall/Single Island Style

Hoods, prior to installation,

check with local authorities

having jurisdiction on clearances

to combustible surfaces, etc.

Bottom

With the hood still inside its

packing crate, position the unit

beneath its installation location.

Carefully remove the packing

crate. Place some protective

material on the floor next to

Pallet

Protective Material

the crate to avoid damaging the hood as it is tipped on its side; Fig. 1. Tip the hood carefully onto the

protective material. If you have filler panels, install them now; Fig. 2. If you have integral filler panels,

no additional installation is needed.

Hood Installation Overview

If a Back Supply Plenum is provided, install first. Before raising hood, insert 1/2 in. (12.7 mm) diameter

threaded rod (by others) into hanger brackets on hood top. Check the engineering drawings or UL

label located on the inside of the hood for proper hood height above finished floor. Install filler panels

if needed. Raise and hang hood from adequate roof or ceiling supports All hanger brackets must be

used and the hood must be properly supported while lifting to prevent damage or distortion to the

hood. The hood must be hung level to operate properly. After hood is secured, make the exhaust duct

connections. The fire system distributor must be contacted at this time. After the fire system has been

installed, mount the enclosures, then the supply plenums. If an Horizontal Supply Plenum is provided,

it should be installed before the enclosures. The hood and accessories are now installed. Finally, make

the electrical connections from switches to fans and complete the fire system circuits as required by

the job specification.

Filler Panel Installation Instructions

1. Uncrate the hood and lay it on the floor

HOOD

with protective material between the hood

and the floor. (Fig. 1)

2. Bolt the filler panels together with 5/16 in.

HOOD

bolts provided in the hardware package.

HOOD

3. Position the filler panels to the hood back,

and tack-weld them into place. (Fig. 2)

T A CK-WELDED TO

HOOD BACK

4. To allow for ease of cleaning, caulk

the external seams with NSF Approved

5/16 IN. X 3/4 IN. BOL T S

WITH WASHERS & NUTS

RIGHT FILLER P A NEL

silicone caulk (GE SCS1009, or its

equivalent). The caulk is not provided.

BOTTOM FILLER P A NEL

Fig. 2

Canopy Hood

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Hood Hanging Height

The hood hanging height is critical, hanging the hood at the incorrect height may significantly reduce

the ability for the hood to function properly and may be in violation of codes. The hood hanging height

(typically, 78 in. (198.12 cm) above the finished floor) is given on the UL label located on the inside of

the hood on the end panel. The hood must be hung level to operate properly. The grease trough is

pitched to drain into the grease container.

Double Island Style Hoods

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 5 for single island hoods; 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 SCS1009 or its equivalent). The caulk is not provided.

Continuous Capture Plenum Hoods

Remove the support angles on the open end panels. (see

Fig. 3

Fig. 3) Use the installation procedure described on page

4 for single island hoods; 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. 4). Caulk this joint

with NSF Approved silicone caulk (GE SCS1009 or its

HOOD FRONT

HOOD

1. REMOVE SUPPORT ANGLE ON OPEN END PANEL.

2. RAISE ALL HOODS INTO APPROPRIATE LOCATION

AND SUPPORT PER CONSTRUCTION PLANS.

3. FASTEN TOP ANGLES TOGETHER USING 1/4 in. BOLTS

equivalent). The caulk is not provided.

4. FASTEN HOODS TOGETHER USING U-CLIPS, 1/4 in. BOLTS

CAP

AS INDICATED.

^NUC^TSAULK

5. CAULK ALL SEAMS AS NECESSARY.

BOLT

ACORN NUT

U-CLIP

Fig. 4

Installing U-Channel Strip

1. After the hood is hung in position and

leveled, apply caulk to the inside edge

of the double island clip. (Fig. 5)

Fig. 5

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

HOOD-1A

HOOD-1B

(GE SCS1009 or its equivalent). The

caulk is not provided.

SILICONE CAULK

(GE SCS1009)

DOUBLE ISLAND CLIP

DETAIL A

Canopy Hood

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Note: The installation of the canopy hoods shall be in accordance with NFPA 96 (latest edition),

Standard for Ventilation Control & Fire Protection of Commercial Cooking Operations.

After the hood is installed, remove all protective plastic.

Note: Greenheck 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.

Electrical Connections

Access for wiring the hood control panel (when applicable) is provided by a junction box located on

top of the hood when the control panel is mounted in the hood, or by the switch junction box when the

control panel is mounted in the fire protection cabinet. The box is labeled “Control Voltage Wiring to

Roof Top Fan Package”. Use minimum 14 AWG copper wire. After all the wiring is completed, install

the light bulbs (light bulbs not provided; standard light bulbs up to 100 watt may be used).

Caution: For multiple hood systems that have more than 14 lights total (incandescent or fluorescent),

the hood lights must be wired to multiple circuits. Each circuit must have less than 14 lights total.

Standard Greenheck light switches shipped on hoods are rated for 15 amps and shall not have more

than 14 lights connected to them. Higher amperage switches are available upon special request.

Ductwork

Exhaust

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 1.37 mm

(0.054 in.) (No. 16 MSG) in thickness or stainless steel not less than 1.09 mm (0.043 in.) (No. 18 MSG)

in thickness.

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 now.

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 but

should not exceed 18 in. (45.72 cm).

For proper installation of duct collars when they are shipped unattached, see page 16.

Canopy Hood

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Installing External Supply Plenums

Using the Supply Plenum Clip

Fig. 6

OPTION #2

Note: The supply plenum is provided with

plenum clips that assist in hanging the plenum.

The plenum should not be hung only with the

plenum clips, threaded rod or uni-strut must

also be used.

UNI-STRUT SUPPLIED BY OTHERS

ROD

Y OTHERS

TOP VIEW

HOOD

OPTION #1

FOR PLENUMS <= 96"

2 CLIPS ARE NEEDED

1. Bolt the hanging clip to the supply plenum.

Two clips are needed for plenums less than

96 in. (243.84 cm) long and three for plenums

greater than 96 in. (243.84 cm). 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. (59.69 cm) from the end to

the hood.

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)

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.

11.5

23.5

TOP VIEW

SUPPLY PLENUM

HANGER BRACKET

OPTION #1

HANGING CLIP COULD BE 23.5" FROM

END IF THERE IS A UTILITY CABINET

ON THE END OF THE HOOD

"C" CLAMP

OPTION #1

HOOD STANDING SEAM

HANGING CLIP

HANGING CLIP BOLTED TO PLENUM SHELL

HANGING CLIP

SUPPLY PLENUM SHELL

HOOD FRONT

Supply Plenum Clip

Fig. 7

OPTION #3

THREADED ROD

SUPPLIED BY OTHERS

THREADED ROD

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.

OPTION #2

THE UNI-STRUT (U-CHANNEL) THAT HOLDS THE

HOOD UP CANTILEVERS OVER THE END OF

THE HOOD AND IS MOUNTED TO THE ASP

HANGER BRACKETS

END VIEW

HOOD

Fig. 8

Canopy Hood

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1. Insert 1/2 in. (12.7 mm) 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.

Fig. 9

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. The supply plenum

must be hung level to operate properly.

ASP - Air Curtain Supply Plenum

(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 SCS1009, or its equivalent). The

caulk is not provided.

Fig. 10

Installing the Supply Duct Collar to the Plenum

1. Place the duct collar(s) over the opening, fastening with tack-

welds at 1 to 2 in. (2.54 to 5.08 cm) intervals, or sheet metal

screws at 3 to 6 in. (7.62 to 15.24 cm) intervals.

HSP or VSP - Variable Supply Plenum

External Supply Plenum Weights, Dimensions, and Supply Rates

Length per

Weight

Width

(mm)

Height

(in) (mm)

section

External Supply

Plenum Type

Recommended

Supply Rate

(lbs/ft)

(kg/ft)

(in)

(ft)

(m)

.91 to

4.88

145 cfm/ft

35.0

9.5

15.878

152.4

355.6

609.6

Variable Variable

3 to 16

Back Supply

(246.36 m³/hr)

Air Curtain Supply

• 14 inch

.91 to

4.88

110 cfm/ft

4.31

5.67

254

3 to 16

(186.89 m³/hr)

Air Curtain Supply

• 24 inch

.91 to

4.88

145 cfm/ft

12.5

(246.36 m³/hr)

0-80 cfm/ft

curtain

face

(0-135.92 m³/hr)

.91 to

4.88

16.0

14.0

7.26

6.35

304.8

457.20

3 to 16

Variable Supply

80-160 cfm/ft

(135.92 -271.84 m³/hr)

.91 to

4.88

150 cfm/ft

Horizontal Supply

(254.85 m³/hr)

Using the UL Listed Fastener Provided

HOOD

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. (15.24 cm) from the

end of the hood with max. spacing between bolts 36 in. (91.44 cm)

1/4 - 20 UNC - 2A

SS BOLT

1/4 IN. SS NUT

DO NOT i N c l u D e u T i l i T y c a b i N e T s O r f i l l e r s w h e N figuriNg b O l T p l a c e m e N T .

DO NOT b O l T T h e s u p p l y p l e N u m T O a f i r e /u T i l i T y c a b i N e T .

2. Push bolt through hole, attach the washer and nut.

SS FLAT WASHER

3. Hand tighten, then use a wrench until fully tightened. Caulk around bolts

from inside of hood as necessary.

Fig. 11

Canopy Hood

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Installing the Back Supply Plenum

Installing the Supply Duct Collar

1. Find the center of the back supply plenum.

L (MODULE LENGTH)

2. If the back supply plenum is less than 9 ft. 10 in. (299.72 cm) long,

cut opening at the suggested location, centering the opening over

the center of the back supply plenum. (Fig. 12)

L/2

3. If the back supply plenum is greater than 9 ft. 10 in. (299.72 cm)

long, divide the length of the back supply 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.

(Fig. 13)

4. Place the duct collar(s) over the opening, fastening with screws or

tack-welds every 4 to 6 in. (10.16 to 15.24 cm). (Fig. 14)

Fig. 12

•

The 4 in. (10.16 cm)

high duct collar is to

be attached to the

back supply.

L (MODULE LENGTH)

L/2

L/4

Fig. 14

Fig. 13

Hanging the Back Supply Plenum

5. Hang the back supply plenum from the ceiling.

(The back supply plenum needs to be mounted 31.25 in. (79.375 cm) above the floor (based upon a

canopy hood that will be hung at 78 in. (198.12 cm) above the finished floor. This is measured from

the lowest rear edge of the back supply plenum to the finished floor. Leave 6 to 10 in. (15.24 to

25.4 cm) of space below the plenum for access to the air diffusers.)

6. Fasten the Back Supply to the wall, going through the lower Back Supply wall. (Fig. 15)

•

These fasteners are to help maintain the location of the Back Supply, and are not intended to

hold the weight of the Back Supply Unit.

•

The fasteners should not interfere with the removable air diffusers.

The 31.25 in. (79.375 cm) height is based upon the canopy hood hanging height of 78 in.

(198.12 cm) from the finished floor to the bottom of the hood.

Canopy Hood

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Hanging the Hood

Before hanging the hood according to the

hood installation instructions, please check the

following:

Fig. 15

1. Make sure the back supply plenum is

properly secured, as described in steps 5

and 6, page 10.

2. If the ductwork for the back supply 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 5 for instructions.

Fasteners holding the

back supply to the wall

4. Lift the hood, and position it so the filler

panels are resting lightly on the top outside

edges of the back supply. The back supply

is used to position the hood only, it is not

intended to hold any hood weight. (Fig. 16)

31.25 in.

Critical

Dimension

5. Connect the remaining ductwork for the

back supply and the hood. It is recommended

that caulk be applied at the mating seams

and surfaces of the back supply, the hood,

and the wall.

Fig. 16

Air Diffusers

The air diffusers, located at the bottom of the back

supply (Fig. 17), will need to be cleaned as often as the

application dictates. Inspect periodically to determine

the cleaning schedule.

Fig. 17

1. To clean the air diffusers, unfasten the screws.

Remove the air diffusers from the Back Supply

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. (Fig. 18)

Removable Air Diffusers

3. Refasten with the stainless steel screws.

Fig. 18

Canopy Hood

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Installing Enclosure Panels

Before installing the enclosure panels, make sure the hood is hung in position with all the ductwork

attached and electrical connections completed.

Fig. 19

1. Position the end enclosure panels on the hood, and clamp into place with clamps provided or tack-

weld the panels into place (Fig 19).

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 in. (100 mm) 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 SCS1009, or its equivalent). The caulk is not provided.

6. Installation instructions may not be applicable for concrete ceilings.

Canopy Hood

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Installing End Skirts

Fig. 20

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 SCS1009 or its equivalent). The caulk is not provided.

5. To allow for ease in cleaning, also caulk all the external seams.

Canopy Hood

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Installing Backsplash Panels

FLAT BACKSPLASH PANEL

MATERIAL GAUGE — STAINLESS

LENGTH

QTY

WALL

Inches

<= 48

Millimeters

<= 1219.2

>48<=94

>94<=141

>1219.2<=2387.6

>2387.6<=3581.4

HEIGHT

>141<=188 >3581.4<=4775.2

>188<=235 >4775.2<=5969

LENGTH

NOTE: PANELS UP TO 48 IN. (1219.2 MM) WIDE SHIP IN ONE PIECE; OVER 48 IN. (1219.2 MM) IN MULTIPLE PIECES.

Fig. 21

1 IN. (25.4 MM)

INSULATED BACKSPLASH PANEL

MATERIAL GAUGE — STAINLESS

INSULATION — 1 IN. (25.4 MM)

WALL

LENGTH

QTY

Inches

<= 46

Millimeters

<= 1168.4

>46<=91

>91<=136

>1168.4<=2311.4

>2311.4<=3454.4

HEIGHT

>136<=181 >3454.4<=4597.4

>181<=226 >4597.4<=5740.4

LENGTH

NOTE: PANELS UP TO 46 IN. (1168.4 MM) WIDE SHIP IN ONE PIECE; OVER 46 IN. (1168.4 MM) IN MULTIPLE PIECES.

Fig. 22

Canopy Hood

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Installing Backsplash Panels

HOOD FRONT PANEL

HOOD END PANEL

SLIDE FLANGE

BEHIND BACK

OF THE HOOD

BACKSPLASH PANEL

SECTION VIEW

OF BACKSPLASH

PANEL OVERLAP

HOLES SHOULD BE SPACED TO

ADEQUATELY SECURE THE PANEL

TO THE WALL STUDS (HOLE SPACING

AND FASTENERS PROVIDED BY OTHERS)

Fig. 23

1. After the hood is hung in position, slide the flat flange of the backsplash panel behind the back of

the hood.

Note: If the backsplash panel length is greater than 46 in. (116.84 cm), it will be shipped in multiple

pieces.

2. After the backsplash panel has been positioned, drill holes in the panel and fasten to the wall.

(fasteners provided by others).

Note: The holes should be spaced to adequately secure the panel to the wall.

3. Caulk the joints between the hood and the backsplash panel with NSF Approved silicone caulk

(GE SCS1009, or its equivalent). The caulk is not provided.

4. Caulk the joint between the backsplash panels when multiple panels are required, with NSF

Approved silicone caulk (GE SCS1009, or its equivalent). The caulk is not provided.

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Installing Duct Collars

1. The exhaust duct

connection needs to

be located within 48 in.

(121.92 cm) from the

center of the hood

length to the center of

the duct connection.

(see Fig. 24, back view

Fig. 25)

Hanger Bracket

Exhaust Plenum

3.00

14.00

Duct Cut Out Area

Hood Width

16.00

2. The exhaust duct

connection is to be

a continuous liquid-

tight weld. Weld with

a non-ferrous filler

wire, such as silicon

bronze or stainless

steel filler wire. Protect

all stainless steel areas

from weld splatter.

Supply Plenum

Hood Length

3.00

Front of Hood

8.00

Top View of the Hood

Fig. 24

8.00

Hood Top

1.00

3. The supply duct

connection is tack-

welded at 1 to 2 in.

(2.54 to 5.08 cm)

Exhaust Plenum

12.00

Duct Cut Out Area

intervals, or sheet metal

screws at 3 to 6 in.

(7.62 cm to 15.24 cm)

spacing to the hood.

(Fig. 26)

Back View of the Hood

Fig 25

SUPPLY

INTERNAL

SUPPLY

CHAMBER

FIRE DAMPER

4. The deflector is

centered under the

supply duct collar.

(Fig. 28)

UPP

DUC

ONN

HOOD

UPP

DUC

WELDED WITH

5. For hoods that are

insulated, the edges of

the insulation need to

be taped after the hole

is cut, (the insulation

tape is to be provided

by others).

PACING

HOOD.

INSULATED

SUPPLY PLENUM

EXHAUST

CAPTURE

Fig. 26

Fig. 27

Fig. 28

6. On combination hoods,

make sure the fire

Note: UL listed hood

assembly to be used

only with Greenheck

Fan Corp. labeled

subassembly for

exhaust hood without

exhaust damper part

Number DC.

damper is located over

the internal supply

chamber. (Fig. 29)

DEFLECTOR TO BE PLACED CENTERED

UNDER THE SUPPLY DUCT COLLAR

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Exhaust Air Balancing Baffles (EABB)

This is a guide to assist in determining if multiple hoods on one fan can be balanced to have equal

static pressure. For multiple hoods on one fan to achieve their designed exhaust flow, all of the hoods

must have equal static pressure at their designed exhaust flow.

The laws of physics force the static pressure for each branch of a duct system on one fan to always be

equal. This will happen by the flow rate increasing in low static branches and decreasing in high static

branches until the static pressure is equal in all branches.

Checking for Balance

Every hood with Exhaust Air Balancing Baffles (EABB) has a range for its static pressure. The low

number in this range is given by the standard calculation for hood static. (Static that is printed with

the CAPS submittal). The maximum increase above the low number can be calculated from the duct

velocity at the low static, (also given on CAPS submittal). This is then added to the low number to get

the highest static pressure possible with an EABB.

The maximum potential increase in static is given in the graph, or can be calculated from:

Max. Increase = 0.00000036 x (Duct velocity)

Maximum Increase in Static Pressure for Exhaust Air Balancing Baffle

(Fully Closed)

4.5

After the range for each hood is calculated,

it should be compared to the hood with the

highest static pressure. If the highest hood

3.5

falls inside of the range, then the hoods can be

balanced with the EABB. If it is higher than the

2.5

range, the hoods cannot be balanced.

Example 1:

Hood 1:

1.5

Ps = 0.58 in. wg

0.5

Duct Velocity = 1900 FPM

Ps = 0.44 in. wg

500

1000

1500

2000

2500

3000

3500

Duct Velocity FPM

Hood 2:

Duct Velocity = 1800 FPM

Hood 2 has the lower Ps, at 1800 FPM the maximum increase in Ps is 1.17. The range for Hood 2 is

0.44 to 1.61. Hood 1 is less than 1.61 so these hoods can be balanced.

Example 2:

Hood 3:

Hood 4:

Ps = 2.00 in. wg

Duct Velocity = 2000 FPM

Ps = 0.44 in. wg

Duct Velocity = 1500 FPM

Hood 4 has the lower Ps, at 1500 FPM the maximum increase in Ps is .81. The range for Hood 4 is 0.44

to 1.25. Hood 3 is higher than 1.25 so these hoods cannot be balanced.

Note 1: For many systems, an EABB may not be needed on the hood that has the highest static pressure. The

exception to this is if the individual ductwork has uneven static pressures.

Note 2: When sizing the fan, use the static pressure from the highest hood and sum the CFM from all the hoods.

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Balancing the Kitchen Exhaust System

A. To determine the proper dining room air balance:

1. Refer to engineering drawings to determine total exhaust CFM from dining areas.

(Exhaust fans, heating and air conditioning units, restrooms, etc.)

2. Determine the total CFM of make-up air supplied to dining area.

3. Subtract #1 from #2 above. If the result is a negative number, a negative pressure is present

in the dining area. In this case, kitchen exhaust odors could be drawn from the kitchen to the

dining area. Therefore, exhaust or supply air should be adjusted to provide a slight positive

pressure in the dining area.

B. To determine proper kitchen air balance:

1. Refer to engineering drawings to determine total exhaust from the kitchen area.

(Exhaust hoods, dishwasher hoods, etc.)

2. Determine total CFM of make-up air supplied to kitchen area.

(Make-up air hoods, heating and air conditioning units, etc.)

3. Subtract #1 from #2 above. The result should be a negative number. If the result is a positive

number, a positive pressure is present in the kitchen area. Kitchen odors could be forced into

the dining area. Also, a positively balanced kitchen area can adversely affect the performance

of the exhaust hood.

Caution: According to NFPA 96, Ch. 8-3 Replacement Air: Replacement air quantity shall be adequate

to prevent negative pressures in the commercial cooking area(s) from exceeding 4.98 kPa (0.02 in.

water column).

Testing Hood Air Volume

Baffle Filter Style Hoods

Nominal Filter Size

A. Exhaust:

With all the filters in place, determine

H/4

the total hood exhaust volume with a

rotating vane anemometer as follows:

1. All cooking equipment should

be on.

2. Measure the velocities

H/2

H/4

Velocity measurements should

be taken at five locations per

filter. These must be over a filter

slot as in Fig. 29.

Fig. 29

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Measure the velocity of each location.

A digital 2.75 in. (70 mm) rotating

vane anemometer or equivalent

is suggested. The center of the

anemometer should be held 2 in.

(50 mm) from the face of the filters as

shown in Fig. 30. It is helpful to make

a bracket to keep the anemometer

at the 2 in. (50 mm) distance and

parallel to the filter. Both squareness

and distance are very important for

accuracy.

Rotating Vane Anemometer

2 in.

Fig. 30

Calculate the average velocity for the filter.

3. Determine the filter’s conversion factor from the table.

4. Calculate the filter’s volume in CFM (m³/hr) by multiplying the average velocity by the

conversion factor.

5. Calculate the hood’s volume by repeating the process for the remaining filters and summing the

individual filter volumes.

Nominal Filter Size (H x L)

Imperial

Metric

Conversion Factor

Inches

Millimeters

400 x 400

500 x 400

400 x 500

500 x 500

16 x 16

16 x 20

20 x 16

20 x 20

1.63

2.13

1.90

2.48

.157

.198

.177

.230

Example: Exhaust Only Hood with three 20 x 16 Filters

Measured velocities in fpm for one 20 x 16 Filter

Sum of Velocity Readings

250

255

(4572 m/h)

(4663.44 m/h)

256

(4681.73 m/h)

Average Velocity

Number of Readings

248

240

(4535.42 m/h)

(4389.12 m/h)

255 + 250 + 256 + 248 + 240

(Imperial)

= 249.8 fpm

4663 + 4572 + 4681 + 4535 + 4389

(Metric)

= 4568 m/hr

For a nominal filter size of 20 x 16, the conversion factor is 1.90 Imperial (.177 Metric)

Volume for one filter = Conversion Factor x Average Velocity

1.90

.177

249.8 fpm

4568 m/hr

474.6 cfm

809 m³/hr

Total hood volume

= (Filter 1 Volume) + (Filter 2 Volume) + (Filter 3 Volume)

474.6

809

455.4

880

470.1

799

= 1400.1 cfm

= 2488 m³/hr

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B. Supply (If Applicable):

Example for Perforated Face Supply

1. Hood set up

If the make-up air unit has a temperature control, it should be used to keep the supply air at the

desired room discharge air temperature.

2. Measure Velocities

Divide the perforated face panel into a grid of equal areas, each approximately 4 in. (100 mm)

square.

Measure the velocity at the center of each grid area. A digital 2.75 in. (70 mm) rotating vane

anemometer or equivalent is suggested. The center of the anemometer should be held tight to

the face of the panel, and parallel to the filter. Both squareness and distance are important for

accuracy. Calculate the average velocity of the panel.

3. Measure the length, height, and width of the perforated face panel.

4. Calculate the perforated face panel volume in CFM by using the following formula:

Volume

Avg. Velocity

Length (in.)

Length (m)

Height (in.) 0.005

Height (m)

0.72

5. Calculate the system’s volume by repeating the process for the remaining panels and adding

the individual panel volumes together.

Filter Readings (fpm)

Filter Readings (m/hr)

260 250 255 260 250 255 265

270 275 270 280 265 265 270

290 285 280 280 275 290 295

285 275 280 260 270 265 260

4755 4572 4663 4755 4572 4663 4846

4938 5029 4938 5121 4846 4846 4938

5304 5212 5121 5121 5029 5304 5395

5212 5029 5121 4755 4938 4846 4755

Example: Face Supply Hood with three 28 in. (.711 m) Perforated Panels

Measured velocities in FPM for one perforated panel

Sum of Velocity Readings

Average Velocity

Number of Readings

260 + 250 + … + 265 + 260

(Imperial)

= 270.7 fpm

4755 + 4572 + … + 4846 + 4755

(Metric)

= 4951 m/hr

Measure Length and Height = 28 in. (.711 m) long perforated panels x 16 in. (.406 m) high

Average

Velocity

Conversion

Factor

Volume for one panel =

x Length x Height

0.005

0.72

270.7 fpm

4951 m/hr

606.4 cfm

1029 m³/hr

.711

.406

Total system volume = (Panel 1 Volume) + (Panel 2 Volume) + (Panel 3 Volume)

606.4

1029

614.3

1044

593.8

1009

1814.5 cfm

3082 m³/hr

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Testing Hood Air Volume

Baffle Filters Style Hoods with the Shortridge Meter

A. Exhaust

With all the filters in place, determine the total hood exhaust

volume with a Shortridge meter as follows:

1. All cooking equipment should be on. If the hood has

internal short circuit make-up air, it should be turned off.

2. Measuring Velocities

• Set up the Shortridge meter.

• For 20 in. (500 mm) wide filters, position the grid as

shown in Fig. 32 and 33. Average two measurements.

• For 16 in. (400 mm) wide filters position the grid as

shown in Fig. 34.

• Take velocity readings for each filter.

3. *Calculate each filter’s volumetric flow rate by summing

the flow rate of each individual filter in the hood.

4. *Calculate the total hood’s volumetric flow rate by

summing the flow rate of each individual filter in the hood.

*Note: For best accuracy multiply the velocity of each filter by its

conversion factor and sum the flow rates. Averaging the velocity

measured for all filters may cause error.

Fig. 31

Nominal Filter Size (H x L)

Imperial

Metric

Conversion Factor

Inches

Millimeters

400 x 400

400 x 500

500 x 400

500 x 500

16 x 16

16 x 20

20 x 16

20 x 20

1.66

2.10

1.96

2.40

.154

.195

.182

.223

14 in.

2.75 in.

10 in.

Example: Measured velocities for 20 x 20 filter = 185 and 189 fpm

Fig. 32

Fig. 33

Fig. 34

Sum of Velocity Readings

Average Velocity

(Imperial)

17.25 in.

Number of Readings

6 in.

185 + 189

= 187.0 fpm

10 in.

3383 + 3456

(Metric)

3420 m/hr

Conversion

Average

Velocity

Flow rate for one filter =

Factor

14 in.

2.40

187.0 fpm

3420 m/hr

448.8 cfm

763 m³/hr

2.75 in.

.223

10 in.

(Filter 1

Flow Rate)

(Filter X

Flow Rate)

Total hood flow rate

+ … +

= 448.8 + 457.8 + 437.5 + 444.8 = 1788.9 cfm

= 763 + 778 + 743 + 756

= 3040 m³/hr

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High Velocity Cartridge Filters

A. Exhaust

1/2 Width

1/4 Width

With all the filters in place, determine the total hood exhaust

volume with a rotating vane anemometer as follows:

1. All cooking equipment should be on. If the hood has

internal short circuit make-up air, it should be turned off.

2. Measuring Velocities

Fig. 35

• Velocity measurement should be taken at three locations per filter.

2 in.

These must be over the inlet opening as shown in Fig. 35.

• Measure the velocity of each location. A digital 2.75 in. (70 mm)

rotating vane anemometer or its equivalent is suggested. The center

of the anemometer should be held 2 in. (50 mm) from the face of

the filters as in Fig. 31. It is helpful to make brackets to keep the

anemometer at the 2 in. (50 mm) distance and parallel to the filter.

Both squareness and distance are important for accuracy.

Rotation Vane

Anemometer

3. Calculate the average slot velocity.

4. Calculate the CFM per linear foot by dividing the average velocity by a

conversion factor listed in the following table.

5. Calculate the hood’s exhaust volume by multiplying the CFM per linear

foot by the length of hood.

Fig. 36

Imperial

Cartridge Filter Size

Metric

Conversion Factor

16 in. (400 mm) high with 4 in. (100 mm) high inlet

20 in. (500 mm) high with 4 in. (100 mm) high inlet

16 in. (400 mm) high with 7 in. (120 mm) high inlet

20 in. (500 mm) high with 7 in. (120 mm) high inlet

1.63 1/ft

2.15 1/ft

1.24 1/ft

1.58 1/ft

5.35 1/m

7.05 1/m

4.07 1/m

5.18 1/m

Example:

Measure the slot velocities in fpm for a 9 ft. (2.74 m) hood with four 20 x 20 in. (500 x 500 mm)

filters with standard opening, three readings per filter.

Filter Readings (fpm)

Sum of Velocity Readings

Average slot velocity

(Imperial)

470

482

455

399

440

430

431

439

425

453

441

465

Number of Readings

5330

= 444.2 fpm

97474

Filter Readings (m/hr)

(Metric)

= 8123 m/hr

8595

8047

7864

7882

8028

7772

8815

8321

7297

8284

8065

8504

Average Slot Velocity

Conversion Factor

444.2 fpm

CFM per linear foot

= 206.6 cfm/linear foot

2.15

8123 m/hr

7.05

1152 m³/hr

Hood exhaust volume

CFM/linear foot (m³/hr / m)

Hood Length

206.6

1152

9 ft.

2.74 m

= 1859.4 cfm

= 3156 m³/hr

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High Velocity Cartridge Filters

A. Exhaust

With all the filters in place, determine the total hood exhaust

volume with a Shortridge meter as follows:

1. All cooking equipment should be on. If the hood has

internal short circuit make-up air, it should be turned off.

2. Measuring Velocities

• Set up the Shortridge meter. Leave all holes of

Velgrid open. Do NOT tape over holes that are not

over openings. The conversion factor takes this into

account.

• Position the grid over each filter as shown.

• Take velocity readings for each filter.

3. *Calculate each filter’s volumetric flow rate by summing

the flow rate of each individual filter in the hood.

4. *Calculate the total hood’s volumetric flow rate by

summing the flow rate of each individual filter in the

hood.

Fig. 37

*Note: For best accuracy multiply the velocity of each filter

by its conversion factor and sum the flow rates. Averaging the

velocity measured for all filters may cause error.

Nominal Filter Size (H x L)

Imperial

Metric

Conversion Factor

Inches

Millimeters

400 x 400

400 x 500

500 x 400

500 x 500

16 x 16

16 x 20

20 x 16

20 x 20

1.22 ft

.113 m

1.67 ft

.155 m

1.21 ft

.112 m

1.50 ft

.139 m

1/2 width

Example: Measured velocities for 20 x 20 filter = 282 fpm (5157 m/hr)

1/2 height

Conversion

Factor

Average

Velocity

Flow rate for one filter

(Imperial)

(Metric)

1.50

.139

282 fpm

423.0 cfm

717 m³/hr

x 5157 m/hr =

Total hood flow rate = (Filter 1 Flow Rate) + … + (Filter X Flow Rate)

= 423.0 + 421.8 + 420.7 + 418.2 = 1683.7 cfm

Fig. 38

= 717 + 717 + 715 + 711

= 2860 m³/hr

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Grease-X-Tractor™ High Efficiency Filters or Grease Grabber™ Multi-Filtration System

A. Exhaust

1/2 Width

With all the filters in place, determine the total hood exhaust

volume with a rotating vane anemometer as follows:

1/4 Width

1. All cooking equipment should be off. If the hood has internal

1/2 Height

short circuit make-up air, it should be turned off.

2. Measuring Velocities

• Measurement should be taken at six locations per filter.

They must be over the inlet opening as shown in Fig. 39.

• Measure the velocity of each location. A digital 2.75 in.

Fig. 39

(70 mm) rotating vane anemometer or its equivalent is

suggested. The center of the anemometer should be held 2 in. (50 mm) from the face of the

filters as in Fig. 40. It is helpful to make brackets to keep the anemometer at the 2 in. (50 mm)

distance and parallel to the filter. Both squareness and distance are important for accuracy.

2 in.

3. Calculate the average velocity for the filter.

4. Determine the filter’s conversion factor from the table.

Rotating Vane

Anemometer

5. Calculate each filters volume in CFM by multiplying the average

velocity by the conversion factor.

Nominal Filter Size (H x L)

Imperial

Metric

Conversion Factor

Inches

Millimeters

400 x 400

400 x 500

500 x 400

500 x 500

16 x 16

16 x 20

20 x 16

20 x 20

1.31 ft

.122 m

Fig. 40

1.65 ft

.153 m

1.23 ft

.114 m

1.65 ft

.153 m

Example: (Imperial)

Example: (Metric)

Hood Length = 7 feet 0 inches with four 20 x 20 filters.

Hood Length = 2.13 meters, with four 500 x 500 mm filters.

Measure the velocities in fpm for each 20 x 20 filter

(six readings per filter)

Measure the velocities in m/hr for each 500 x 500 mm filter

(six readings per filter)

225

210

228

237

230

250

225

245

201

238

222

240

245

223

265

221

187

197

226

220

240

219

200

4114.80

3840.48

4169.66

4334.26

4420.12

4572.00

4114.80

4480.56

3675.88

4352.54

4059.94

4389.21

4480.56

4078.22

4846.52

4041.65

3419.86

3602.74

4133.08

4023.36

4389.12

4005.07

3657.60

Filter 1

Filter 2

Filter 3

Filter 4

Filter 1

Filter 2

Filter 3

Filter 4

Sum of Velocity Readings

Number of Readings

1258

Sum of Velocity Readings

Number of Readings

23006

Average slot velocity for Filter 1

209.7 fpm

3834 m/hr

(repeat for each filter)

For a nominal filter size of 20 x 20, the conversion factor is 1.65

Volume for Filter 1 = Conversion Factor x Average Velocity

For a nominal filter size of 500 x 500, the conversion factor is .153

Volume for Filter 1 = Conversion Factor x Average Velocity

1.65 ft²

= 346.0 cfm (repeat for each filter)

209.7 ft./min.

.153 m²

= 586.7 m³/hr (repeat for each filter)

3834 m/hr

Total hood volume

Filter 1

Volume

346.0

Filter 2

Volume

377.6

Filter 3

Volume

386.9

Filter 4

Volume

378.1

Filter 1

Volume

587

Filter 2

Volume

642

Filter 3

Volume

657

Filter 4

Volume

642

1488.6 cfm

2528 m³/hr

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Grease-X-Tractor™ High Efficiency Filters or Grease Grabber™ Multi-Filtration System

A. Exhaust

With all the filters in place, determine the total hood exhaust

volume with a Shortridge meter as follows:

1. All cooking equipment should be on. If the hood has

internal short circuit make-up air, it should be turned off.

2. Measuring Velocities

• Set up the Shortridge meter. Leave all holes of

Velgrid open. Do NOT tape over holes that are not

over openings. The conversion factor takes this into

account.

• For 20 in. (500 mm) high filters, position the grid

as shown in Fig. 42 and 43. Average the two

measurements.

• For 16 in. (400 mm) high filters position the grid as

shown in Fig. 44.

• For 20 in. (500 mm) wide filters, position the grid over

the left and right side of the filter. Average the two

Fig. 41

measurements.

• Take velocity readings for each filter.

3. *Calculate each filter’s volumetric flow rate by summing

the flow rate of each individual filter in the hood.

4. *Calculate the total hood’s volumetric flow rate by summing

the flow rate of each individual filter in the hood.

*Note: For best accuracy multiply the velocity of each filter by its

conversion factor and sum the flow rates. Averaging the velocity

measured for all filters may cause error.

Nominal Filter Size (H x L)

Imperial

Conversion Factor

Metric

Conversion Factor

14.25 in.

2.75 in.

Fig. 42

Inches

Millimeters

400 x 400

400 x 500

500 x 400

500 x 500

2.75 in.

16 x 16

16 x 20

20 x 16

20 x 20

1.53 ft

.142 m

2.00 ft

.185 m

2.25 ft

.209 m

3.00 ft

.279 m

Example:

Fig. 43

Measured velocities for 20 x 20 in. (500 x 500 mm) filter.

Sum of Velocity Readings

Number of Readings

Average slot velocity

(Imperial)

198 + 205

= 201.5 fpm

2.5 in.

3.25 in.

14.75 in.

3021 + 3749

(Metric)

= 3385 m/hr

14.25 in.

2.75 in.

Flow rate for one filter

Conversion Factor

3.0

Average Velocity

Fig. 44

201.5 fpm

3385 m/hr

604.5 cfm

944 m³/hr

2.75 in.

.279

Filter 1

Flow Rate

Filter X

Flow Rate

Total hood flow rate

…

604.5

600.3

1020

592.4

1006

2410.5 cfm

4012 m³/hr

613.3

1042

944

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Testing Hood Air Volume

Short Circuit Hoods

A. Supply

Fig. 45

All cooking equipment should be off. The hood

exhaust should also be off.

1. Measuring Velocities

• Velocity measurements should be made

with a digital 2.75 in. (70 mm) rotating vane

anemometer or its equivalent.

• One velocity measurement should be taken

for every 8 in. (200 mm) of short circuit

opening length, starting tight against one

edge of the opening, and finishing tight

against the other edge. The anemometer

should be placed at the bottom edge of the

opening, flush with the bottom lip as shown

in Fig. 45. Both squareness and placement

are important for accuracy.

2. Calculate the average slot velocity.

3. Calculate the CFM per linear foot by dividing

the average velocity by a conversion factor of

5.52 per ft. or 1.68 per m.

4. Calculate the hoods exhaust volume by

multiplying the CFM per linear foot by the total

hood length.

Example: 4 ft. (1.22 m) short circuit hood (36 in. (.914 m) short circuit opening):

Number of readings

Average slot velocity

= 36 in. / 8 in. => 6 readings

(.914 m / .2 m => 6 readings)

Sum of Velocity Readings

Number of Readings

786 + 900 + 1126 + 1048 + 1111 + 1115

6086

(Imperial)

(Metric)

= 1014.3 fpm

= 1723 m/hr

1335 + 1529 + 1913 + 1780 + 1888 + 1894

10339

Average Slot Velocity

Conversion Factor

CFM per linear foot

1014.3 fpm

= 183.8 cfm/linear foot

5.52

1723 m/hr

= 1026 m³/hr

1.68

Hood supply volume

= CFM/linear foot (or m /hr) x Total Hood Length

183.8

1026

4 ft.

1.22 m

= 735.2 cfm

= 1252 m³/hr

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Amerex Wiring Plan View

POWER SOURCE

MANUAL RESET RELAY

PRM

ELECTRIC GAS VALVE

MICROSWITCH

INSTALLER PROVIDED JUNCTION BOXES

BASIC WIRING DIAGRAM

POWER SOURCE

MANUAL RESET RELAY

RED (COMMON)

YELLOW (N.O)

BLACK (N.C.)

GAS VALVE

NOTE: DO NOT USE YELLOW WIRE ON MICROSWITCH IN NORMAL

INSTALLATION. THE YELLOW WIRE IS TO BE USED ONLY FOR

EXTINGUISHER ALARM, LIGHTS, CIRCUITS, ETC.

MICROSWITCH

BASIC WIRING DIAGRAM

MANUAL RESET RELAY

RED (COMMON)

120V/60HZ

PUSHBUTTON SWITCH

YELLOW (N.O)

K1b

BLACK (N.C.)

MICROSWITCH

CURRENT DRAW MAX:

8A RESISTIVE

8A INDUCTIVE

120VAC

GAS VALVE

SEE NOTE 3

NOTES:

DENOTES FIELD INSTALLATION

DENOTES FACTORY INSTALLATION

3. GAS VALVE: UL LISTED ELECTRICALLY-OPERATED SAFETY VALVE FOR NATURAL OR LP GAS AS NEEDED OF

APPROPRIATE PRESSURE AND TEMPERATURE RATING, 110V/60HZ OR AMEREX GAS VALVES, PN 12870, 12871,

12872, 12873, 12874, 12875 and 12876.

4. K1a and K1b ARE N.0. WHEN K1 IS DE-ENERGIZED.

Fig. 46

Canopy Hood

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Ansul Wiring Plan View

2 Snap-Action Switches provided by Greenheck

may be wired as shown.

Option A

Relay Part No. 14702

Four typical examples shown

* K1a and K1b are N.O. when K1 is de-energized

Manual Reset Relay

Equipment

Part No. 14702

Power to cooking

110V/60HZ

equipment

Black

Red

K1*

Shunt Trip Breaker

Brown

K1a

N.O.

Snap-Action Switch

Part No. 423878

120 VAC

Input

K1b N.O.

Push Button

Switch

Gas Valve

See Note 3

Electric gas valve - If reset relay is

used, see option A or B at right.

Mechanical gas shut off valve does not

require electrical connection.

Alarms

Ansul Snap-Action Switch

(Switch contacts shown with Ansul

Automan in the cocked position)

Voltage Free

Option B

Relay Part No. 426151

Input

Contacts for

Building Alarm(s)

Black

Red

Snap-Action Switch

Part No. 423878

Reset

Power

Indicator

Brown

GND

Power to

Fan(s)

Screw 5

L2 Neutral

L1 Hot

Waterwash

Fan

Starter

Relay Coil

110 VAC/60HZ

Terminal strip in

Waterwash Control Panel

Manual Reset Relay

(Part No. 426151)

Electrical Rating

1/3 HP, 10 AMP, 120 VAC

1/2 HP, 10 AMP, 240 VAC

13 AMP, 28 VDC

Gas Valve

See Note 3

Fans

Note:

Denotes ﬁeld installation.

Denotes factory installation.

120 VAC

Power to

3. Gas Valves: “UL Listed electrically-operated safety valve for natural or LP gas

as needed of appropriate pressure and temperature rating, 110V/60HZ”

or Ansul gas valves.

4. Do not use black wire on snap-action switch in normal installation. Black

wire may only be used for extraneous alarm, light circuits, etc.

Input

fan(s)

Fan Starter

Manual Switch

If prohibited by local codes, do not shut down

exhaust fans with this method of wiring.

Fig. 47

Canopy Hood

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Overall Wiring Plan View

C O N T R O L C E N T E R

T O M A K E - U P A I R

Y P O W S E U P P L

Fig. 48

Canopy Hood

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Wiring for Hood Switch Panels

The diagrams below show a typical hood switch panel remote mounted. For hood mounted switches

refer to the wiring connection decal on the cover of the junction box on the hood top.

The diagram below shows how to wire the exhaust and supply fans with a control panel to a fire

suppression contact (FSC1). When wired properly, the suppy fan will be turned off if the fire system is

activated and allow the exhaust fan to continue to operate.

The fire suppression contact (FSC1) is provided as part of the fire suppression system and is normally

mounted in the fire system control box.

COMBINED EXHAUST & SUPPLY SWITCHING

EXHAUST FAN CONTACT

OPTIONAL

SUP FAN

JUNCTION BOX

FSC1

ON TOP OF HOOD

FOR FIELD

115VOLT

CONTROL

EXH

FAN

STR

SUP

FAN

STR

SUP

HTR

CTRL

SUPPLY FAN CONTACT

CONNECTION OF

120 VOLT

VOLTAGE

SUPPLY POWER

HOOD SWITCH

PANEL DETAIL

HOOD

LIGHTS

LIGHT

SWITCH

EXHAUST & SUPPLY

SWITCH

HEATER

SWITCH

SEPARATE EXHAUST & SUPPLY SWITCHING

EXHAUST FAN CONTACT

SUPPLY FAN CONTACT

CONTROL

VOLTAGE

JUNCTION BOX

ON TOP OF HOOD

FOR FIELD

EXH

FAN

STR

SUP

FAN

STR

SUP

HTR

CTRL

CONNECTION OF

120 VOLT

SUPPLY POWER

HOOD SWITCH

PANEL DETAIL

LIGHT

SWITCH

EXHAUST

SWITCH

SUPPLY

SWITCH

HEATER

SWITCH

HOOD

LIGHTS

Fig. 49

Canopy Hood

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Circuit Diagrams

Single Pole

Double Pole

OFF

ON (NC)

ON (NO)

ON (NC)

ON (NO)

ON (NC)

ON (NO)

ON (NC)

ON (NO)

OFF

Series Circuit

Parallel Circuit

Off if both are not activated

Off if either are not activated

On if both are activated

Off if both are not activated

On if either is activated

On if both are activated

On if both are not activated

Off if either are not activated

Off if both are activated

On if either is activated

Off if either not activated

Off if both are activated

Fig. 50

Canopy Hood

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Maintenance

Daily Maintenance

1. Wipe grease from exposed metal surfaces on the hood interior using a clean, dry cloth.

2. Visually inspect the filters or cartridges for grease accumulation.

3. Remove grease cup, empty contents, and replace cup.

Weekly Maintenance

1. Remove the grease filters or cartridges and wash in dishwasher or pot sink.

Note: Filters installed over heavy grease producing equipment may require more frequent

cleaning. See filter cleaning schedule.

2. Before replacing filters, clean the interior plenum surfaces of any residual grease accumulations.

Periodic Maintenance

1. Painted hood exterior surfaces should be cleaned with a mild detergent solution.

2. Stainless steel hood exterior surfaces should be cleaned with a mild detergent and then polished

with a good grade stainless steel polish to preserve the original luster.

Note: Never use abrasive cleaners or chemicals on hood surfaces. Never use chlorine based

cleaners or iron wool pads to clean the hood. They may scratch or mar the material. Always rub

with the grain of the stainless.

3. To maintain optimum performance of your hood and fan, duct cleaning should be performed as

often as the application and code requires.

4. Re-caulk the hoods with an NSF Approved silicone caulk, (GE SCS1009 or its equivalent) as

needed.

Condensate Hood Baffle Installation

1. Grasp the baffle with drain holes facing

CORRECT

down and lift into the hood. For short hoods

with only one baffle it may be necessary to

turn the baffle slightly diagonal to fit it past

the drain channel.

UPPER HANGER

CONDENSATE

2. After the baffle clears the drain channel of

GUTTER

the hood, turn the baffle so it is lined up with

the upper hanger in the hood.

Fig. 51

3. Hook the upper channel of the baffle over

INCORRECT

the upper hanger of the hood and set the

lower edge of the baffle into the condensate

gutter. Repeat until all baffles are installed in

UPPER HANGER

the hood.

4. Center the baffle from side to side in the

CONDENSATE

GUTTER

hood.

Fig. 52

Canopy Hood

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Grease Grabber™ Filter Installation

NOTE: Never install the Second Stage filter in the front filter channel. The Second Stage filter

must be installed behind a UL Classified Grease-X-Tractor™ primary filter Model HE or GX.

1. Slide the top edge of the Second Stage filter into the top rear filter channel; Fig. 53.

2. Lifting the lower edge of the filter past the grease trough, continue to push the top of the filter into

the channel.

3. When the filter is even with the bottom rear filter channel, set the filter into the channel; Fig. 54.

4. Slide the filter to one end of the hood and repeat until all the filters are installed. Make sure the

filters are placed tightly together with no visible gaps.

5. Latch filters together by connecting hooks to handle on next filter; Fig. 55.

6. Install the Grease-X-Tractor™ primary filters in the same manner using the front filter channel.

Fig. 53

Fig. 54

Fig. 55

Canopy Hood

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Grease Grabber™ Filter Cleaning

Step 1 Remove the front GX filters: (1A) Remove middle filters first, (1B) slide ends toward middle and remove.

GG Filters, second row of filters

GX Filters, first row of filters

Step 2 Release the hooks that hold the filters together. Slide the top hook upward and the bottom hook downward until the

hook releases. Do this to all filters.

Slide

hooks

Step 3 Remove the GG filters, starting in the middle of the hood: (3A) Grab the handles on either side and lift the filter up,

(3B) pull the bottom of the filter toward yourself, (3C) lower the filter out of the hood. Repeat this process for each

filter. The filters that are on the ends will have to be slid toward the middle and then lifted out.

Pull filter down

Slide

filter up

Pull bottom of

filter towards yourself

Step 4 Frequent Maintenance:

Note: Required washing frequency is dependent on type of cooking and quantity of food cooked.

- Remove filters from hood and place each filter in a whirlpool sink or dishwasher.

- If using a whirlpool sink, cycle for 10 minutes. Use standard dishwash soap. (4A)

- If using a dishwasher, cycle it three times to ensure all grease is removed. (4B)

- If using standard sink, cover with hot water and degreaser and soak for two hours. Rinse after soaking.

Note: For hoods with large quantities of filters, it is acceptable to wash 3 to 4 filters each day, cycling all of the filters in three days.

Note: The beads will discolor. Standard cooking will turn the beads yellow in color. Open flame cooking will cause the beads to

blacken. Neither affects the performance of the filters.

Periodic Inspection:

- Each filter may be soaked in hot soapy water for two hours once a month prior to washing if grease build-up is found.

- Inspect the filters by holding it up to a light. Light shining through more than six holes in a group indicates filter

damage.

- For filter replacement, call 1-800-337-7400

Step 5 Replace GG filters in hood. Do Step 3 in reverse order. (3C, then 3B, then 3A)

Step 6 Latch filters together by connecting the hooks to the handle on the next filter. Slide hook on from the top and bottom

of the handle. Do not try to snap the hooks into place. Do Step 2 in reverse.

Step 7 Replace the front GX filters. Do Step 1 in reverse. Be sure to install filters in the ends of the hood first, then install the

filters in the middle of the hood (1B, then 1A)

Caution: To prevent damage to filter media, do not wash second stage filters in detergents that contain

hydroxides such as sodium hydroxide or potassium hydroxide.

Canopy Hood

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Filter Washing Frequency Guide

NOTE: Standard cooking will turn the beads yellow in color. Open flame cooking will cause the beads to

blacken. Neither affects the performance of the beads.

Caution: To prevent damage to filter media, do not wash second stage filters in detergents that contain

hydroxides such as sodium hydroxide or potassium hydroxide.

Time

Cycles

Baffle Filter or

Grease-X-Tractor™

Wash Frequency

Washing Equipment

Cooking

Equipment

Frequency

Required

Preference

Chemical

Type

Temp

Every 3 days

2 Cycles

Twice a week

1 Cycle

Griddle

Fryer

Every 3 days

Weekly

Daily

2 Cycles

Commercial

Grade Dish

Washer

Dish

Washer

Detergent

Best

180º F

Min

Daily

2 Cycles

Daily

Charbroiler

Wok

2 Cycles

Daily

2 Cycles

Every 3 days

2 Cycles

Twice a week

2 Cycles

Daily

Griddle

Fryer

Every 3 days

Weekly

Daily

3 Cycles

Low Temp.

Dish Washer

(Chemical

Sanitizer)

3 Cycles

Dish

Washer

Detergent

140º F

Charbroiler

Wok

4 Cycles

2 Cycles

Daily

4 Cycles

2 Cycles

Every 3 days

5 minutes

Twice a week

5 minutes

Daily

Griddle

Fryer

Every 3 days

Weekly

Daily

10 Minutes

15 Minutes

25 Minutes

Power

Wash Sink

(Whirlpool)

with Heater

180º F

Min

Pot & Pan

Detergent

Charbroiler

Wok

5 minutes

Daily

5 minutes

Daily

5 minutes

Twice a week

5 minutes

Daily

Griddle

Fryer

Every 3 days

Weekly

Daily

Power

Wash Sink

(Whirlpool)

no Heater

Pot & Pan

Detergent

140º F

Charbroiler

Wok

10 minutes

Daily

10 minutes

Daily

Griddle

Fryer

Every 2 days

1 Hour

Soak 10 min., then scrub with

scour pad and bottle brush

Daily

Pot Sink

with Heater

Pot & Pan

Detergent

and/or

Soak 5 min., then scrub with

scour pad and bottle brush

180º F

(rinse with

sprayer after

soaking)

Degreaser

Charbroiler

Wok

Daily

2 Hours

Daily

Soak 10 min., then scrub with

scour pad and bottle brush

2 Hours

Griddle

Fryer

Daily

Change hot water

every 30 minutes

Pot Sink

Commercial

Grade

Kitchen

no Heater

2 Hours

Every 2 days Change hot water

every 30 minutes

Daily

140º F

Soak 10 minutes then scrub

with scour pad & bottle brush

(rinse with

sprayer after

soaking)

Worst

Degreaser

Charbroiler

Wok

Not Recommended

Canopy Hood

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Troubleshooting

Problem: Exhaust fan is not operating or is not operating at design levels.

Is the fan receiving power?

Replace fuses, reset circuit breakers, check disconnect.

Is the belt loose or broken?

Replace or tighten belt.

Is the fan rotating in correct direction?

Have the electrician correctly wire the fan.

Problems with make-up air may interfere with the exhaust fan -

check the manufacturers installation manual.

Is the make-up air operating?

Does the airﬂow need to be increased?

Adjust or replace pulleys to increase fan RPM, install a larger motor.

Clean the fan wheel/blade, replace fan wheel if damaged, check for

loose bolts, check for broken or damaged components, check for

rags and other foreign objects.

Does the fan vibrate?

Problem: Hood is full of smoke. There is smoke coming out of the edges of the hood.

Is the fan operating at design levels?

See exhaust fan troubleshooting section.

Refer to test and balance report, design speciﬁcations and fan

curves; have an electrician check the motor amperage; try removing

the ﬁlter temporarily to see if capture improves. (Make sure to

replace ﬁlter to prevent risk of ﬁre!); switch to different ﬁlters with

lower static pressure.

Is the fan correctly sized?

Are the ﬁlters in good condition?

Clean ﬁlters, replace damaged ﬁlters, properly position ﬁlters.

Is there sufﬁcient make-up air?

(Kitchen should be in a slight negative

but not excessive. Check to see if there

is a strong draft through an open door).

Check make-up air unit, increase make-up air, make-up air should be

evenly distributed throughout the kitchen.

Does the current cooking equipment

match the original design?

Adjust or replace fan to match the cooking equipment load.

One hood may be over exhausting and the other hood not drawing

enough. Restrict second hood to help problem hood.

Are there multiple hoods on one fan?

Are there closed dampers in the duct?

Is the ductwork complex or to small?

Is the ductwork obstructed?

Open dampers.

Change to a higher static fan, modify the ductwork.

Clear obstruction.

Is this a short circuit hood?

Turn off or reduce the amount of air supplied to short circuit.

Problem: Smoke blows away before reaching the bottom of the hood.

Are there cooling fans directed at the

hood or cooking equipment?

Turn off or redirect fans.

Are there ceiling diffusers directing air at Move diffusers to more neutral area or replace with a diffuser that

the hood?

directs air away from the hood.

Are there open windows or doors?

Close windows and doors.

Find source of the draft and eliminate, add side skirts to hood (test

with cardboard – use stainless for permanent side skirts); increase

the amount of overhang on the spillage side; add a 6 in. lip around

the base of the hood (test with cardboard – use stainless for

permanent side skirts); make-up air should be spread out evenly

through the kitchen.

Are there cross drafts or other drafts in

the kitchen?

Add side skirts to hood (test with cardboard ﬁrst); increase the

amount of overhang on spillage side.

Is the hood near a main walkway?

Canopy Hood

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Troubleshooting

Problem: Smoke blows away before reaching the bottom of the hood.

Are there pass-thru windows near

the hood?

Adjust amount and locations of make-up air to eliminate drafts

through the pass-thru windows.

Is this an air curtain hood?

Turn off or reduce the amount of make-up air.

Try turning off or reducing the amount of make-up air; block off

portions of the supply to direct air away from the problem area (test

with cardboard).

Is the make-up air part of the hood

or an attached plenum?

Problem: Pilot lights are being blown out or cooking equipment is being cooled by make-up air.

Try turning off or reducing the amount of make-up air; block off

portions of the supply to direct air away from the problem area (test

with cardboard ﬁrst); remove any obstructions in front of supply that

Are there drafts from make-up air?

directs air toward cooking equipment.

Problem: Cold air can be felt by the cook at the hood.

Is this a short circuit hood?

Turn off or reduce the amount of air supplied to short circuit.

Turn off or reduce the amount of air supplied to the air curtain; heat

the supply air.

Is this an air curtain hood?

Is the make-up air part of the hood

or an attached plenum?

Try turning off or reducing the amount of make-up air; heat the

supply air.

Problem: The kitchen gets hot.

Is the hood capturing?

Hood is not drawing enough air, see sections above on fan

performance and hood capture.

Is this an air curtain hood?

Turn off or reduce the amount of air supplied to the air curtain.

Is the make-up air part of the hood

or an attached plenum?

Try turning off or reducing the amount of make-up air; cool the

supply air.

Problem: Cooking odors in the dining area.

Hood is not drawing enough air, see sections above on fan

performance and hood capture.

Is the hood capturing?

Is there a draft through doors between

the kitchen and dining area?

Decrease make-up air in the kitchen; increase exhaust air through

hood.

Problem: Grease is running off the hood.

Is there grease on top of the hood?

Is the caulk missing or damaged?

Is the grease cup inserted properly?

Exhaust duct is not correctly welded.

Clean problem area and re-caulk.

Put grease cup back in place.

Problem: Hood is noisy.

Is the fan running in the correct direction? See exhaust fan troubleshooting section.

Are the ﬁlters in place?

Replace missing ﬁlters.

Is the hood over exhausting?

Slow down fan (see exhaust fan troubleshooting section)

Canopy Hood

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Before calling your manufacturers representative to report a problem have the

following information available:

1. Review / summary of troubleshooting section in installation operation manual.

2. Hood model and serial number.

3. Current cooking equipment line-up.

4. Size of hood (length, width and height).

5. Island or wall configuration.

6. Multiple hoods on one fan.

7. Nature of spillage (one end; all around the edges).

8. Does the smoke make it to the hood?

9. Height hood is mounted above finished floor.

10. How make-up air is brought into the kitchen (hood, ceiling diffusers, separate plenum).

11. Is exhaust system controlled by a variable volume system?

12. Is the fan noisy?

Replacement Parts

GREENHECK

FILTER DESCRIPTION

PART NUMBER

(HEIGHT X WIDTH X DEPTH)

457626

457628

457632

457634

457627

457629

457633

457635

851656

851657

851659

851660

851703

851704

851706

851707

851709

851710

851712

851713

458763

458764

454878

454879

852208

852207

852388

852389

16 x 16 x 2 Aluminum Baffle Filter

16 x 20 x 2 Aluminum Baffle Filter

20 x 16 x 2 Aluminum Baffle Filter

20 x 20 x 2 Aluminum Baffle Filter

16 x 16 x 2 Stainless Steel Baffle Filter

16 x 20 x 2 Stainless Steel Baffle Filter

20 x 16 x 2 Stainless Steel Baffle Filter

20 x 20 x 2 Stainless Steel Baffle Filter

16 x 16 High Velocity Cartridge Filter

16 x 20 High Velocity Cartridge Filter

20 x 16 High Velocity Cartridge Filter

20 x 20 High Velocity Cartridge Filter

16 x 16 Grease-X-Tractor™ Aluminum Filter

16 x 20 Grease-X-Tractor™ Aluminum Filter

20 x 16 Grease-X-Tractor™ Aluminum Filter

20 x 20 Grease-X-Tractor™ Aluminum Filter

16 x 16 Grease-X-Tractor™ SS Filter

16 x 20 Grease-X-Tractor™ SS Filter

20 x 16 Grease-X-Tractor™ SS Filter

20 x 20 Grease-X-Tractor™ SS Filter

16 x 16 Flame Gard 1 Baffle Filter

16 x 20 Flame Gard 1 Baffle Filter

20 x 16 Flame Gard 1 Baffle Filter

20 x 20 Flame Gard 1 Baffle Filter

20 x 16 Grease Grabber™ Second Stage Filter

20 x 20 Grease Grabber™ Second Stage Filter

16 x 16 Grease Grabber™ Second Stage Filter

16 x 20 Grease Grabber™ Second Stage Filter

Canopy Hood

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Replacement Parts

GREENHECK

REGISTERS

PART NUMBER

452700

452701

452702

452703

453796

453797

453798

453799

452729

452730

452731

452732

452733

24 x 8 Aluminum Single Deflection H-OB

36 x 8 Aluminum Single Deflection H-OB

44 x 8 Aluminum Single Deflection H-OB

24 x 12 Aluminum Single Deflection H-OB

36 x 12 Aluminum Single Deflection H-OB

38 x 12 Aluminum Single Deflection H-OB

44 x 12 Aluminum Single Deflection H-OB

24 x 8 Aluminum 38° Fixed Blade RA-OB

30 x 8 Aluminum 38° Fixed Blade RA-OB

36 x 8 Aluminum 38° Fixed Blade RA-OB

38 x 8 Aluminum 38° Fixed Blade RA-OB

44 x 8 Aluminum 38° Fixed Blade RA-OB

GREENHECK

PART NUMBER

SWITCHES

850551

851776

851777

851778

851779

851780

851781

851782

851783

851784

851510

851511

851512

851618

Light Switch Only

Fan Switch Only

Light Switch & Fan Switch ( 2 switches)

Fan Switch & Heat Switch (2 switches)

Exhaust, Fan & Supply Switch (2 switches)

Light, Fan & Heat Switch (3 switches)

Light, Exhaust, Supply Separate Switch (3 switches)

Exhaust, Supply, Heat Separate Switch (3 switches)

Light, Exhaust, Supply, Heat Separate Switch (4 switches)

Fan Switch & Temper (3 position) (2 switches)

Light, Fans, & Temper (3 position) (3 switches)

Exhaust, Supply, & Temper (3 position) (3 switches)

Light, Exhaust, Supply, & Temper (3 position) (4 switches)

Automatic Fire Damper Test Switch

GREENHECK

PART NUMBER

MISCELLANEOUS

451131

453498

851744

851834

851747

Grease Cup

Glass Globes for hood lights (clear)

Grease Extractor Filter Removal Tool

Baffle Filter Removal Tool

High Velocity Cartridge Filter Removal Tool

Canopy Hood

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Warranty

Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year from

the shipment date. Any units or parts which prove defective during the warranty period will be replaced at our option

when returned to our factory, transportation prepaid. Motors are warranted by the motor manufacturer for a period of

one year. Should motors furnished by Greenheck prove defective during this period, they should be returned to the

nearest authorized motor service station. Greenheck will not be responsible for any removal or installation costs.

As a result of our commitment to continuous improvement, Greenheck reserves the right to change speciﬁcations

without notice.

Contact Greenheck Fan Corporation:

Phone: (715) 359-6171 • Fax: (715) 355-2399 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com

452413 • Canopy Hood, Rev. 7, March 2008

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