Greenheck LSF Series User manual

Model LSF Assembly

Assembly Instructions

Document 458066

Model LSF Assembly

NOTE

Rooftop assembly is recommended. Fan should be

assembled on previously mounted roof curb.

How to use this manual

Read and save these instructions. This manual is designed to assist with the assembly of Greenheck Model LSF

Louvered Supply Fans. It contains detailed assembly instructions, parts and hardware lists, as well as step-by-

step renderings.

Complete descriptions and renderings of all parts and hardware items can be found on pages 2-4. Procedures

described in this manual should be followed in the order they appear.

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 and hardware, are present.

2Model LSF Assembly ®

LSF 24, 27 AND 30

PARTS LIST

Item No. Description Quantity

1 Louver Assembly, End 2

2 Louver Assembly, Side 2

3 Base Panel 4

4 Filters See page 12

5 Blower Assembly

6 Duct Adapter Panel (shown upside down) 4

7 Hood Panel, Center 1

8 Reinforcing Angle for Base Panel 2

9 Gusset 4

Hardware Package #821385 See page 4

Model LSF Assembly

LSF 33 AND 36

PARTS LIST

Item No. Description Quantity

1 Louver Assembly, End 2

2 Louver Assembly, Side, with Spacer 2

3 Base Panel 4

4 Filters See page 12

5 Blower Assembly

6 Duct Adapter Panel (shown upside down) 4

7 Hood Panel, Center 1

8 Hood Panel, Side 2

9 Reinforcing Angle for Base Panel 2

10 Gusset 4

11 Hood Support Rail 2

Hardware Package #821246 See page 4

10 9

541

4Model LSF Assembly ®

HARDWARE PACKAGE AND FASTENER DETAILS

LSF 24 - 30

Hardware

Package

#821385

LSF 33 - 36

Hardware

Package

#821246

Part

Number Item Description Quantity

415006 Sheet Metal Screw, Indented Hex Washer, Zinc Plated, #14 x 1-1/2 inch 6 6

415203 Sheet Metal Screw, Phillips Oval Head, Stainless Steel, #10 x 1-1/4 inch 96 96

415439 Sheet Metal Screw, Indented Hex Washer, Stainless Steel, #12 x 5/8 inch 70 70

415041 Thread Cutting Screw, Indented Hex Washer Head, Zinc Plated, 5/16 inch - 18 x 1 inch 21 33

415005 Thread Cutting Screw, Indented Hex Washer Head, Zinc Plated, 3/8 inch - 16 x 1 inch 2 2

415225 Thread Cutting Screw, Indented Hex Washer Head, Zinc Plated, 5/16 inch - 18 x 5/8 inch 0 8

415729 Machine Screw, Phillips Truss Head, Stainless Steel, 1/4 inch - 20 x 5/8 inch 10 0

415486 Serrated Flange Fastener (Whiz Lock Screw), Zinc Plated, 5/16 inch - 18 x 1 inch 8 8

415837 Lock Washer, Stainless Steel, 1/4 inch 10 0

415457 Nut, Serrated, Zinc Plated, 3/8 inch - 16 2 2

415456 Nut, Zinc Plated, 5/16 inch - 18 8 8

415099 Nut, Stainless Steel, 1/4 inch - 20 10 0

370022 Grommet, Neoprene 1 1

416097 Pin, Cotter (not shown) 4 0

506023 Louver Bracket (not shown) 4 0

Note: Depending on unit size, all hardware may not be used. Drawing is not to scale.

415006 415203 415439 415041

415005 415225 415729 415486 415837

415457 415456 415099 370022

Model LSF Assembly

Step 1

Locate and identify parts as listed on Parts List

and Hardware Package and Fastener Details

List on pages 2 and 3. See exploded view for

assistance in identifying parts.

Step 2

Place duct adapter panels upside down so that

the screws can be inserted into the predrilled

holes in the ﬂanges. Fasten the panels together

as shown using the #12 x 5/8 inch stainless sheet

metal screws.

Step 3

Install the neoprene grommet in wiring hole.

Step 4

Flip over the duct adapter panels and apply

3/4x3/4 inch gray adhesive-backed foam tape

to top of duct adapter around the edge of the

opening at the proper location; noting the size of

the unit. (The roll of foam tape will be attached to

the blower assembly).

Sizes 24, 27, 30 – ﬂush with edge, all around

Size 33 – ﬂush with edge on long sides, 3/4 inch

away from edge on short sides

Size 36 – ﬂush with edge on long sides, 1-1/4 inch

away on short sides

Step 5

Mount assembled duct adapter onto preexisting

roof curb. Align the adapter squarely on the curb

and nail through the prepunched mounting holes

(nails not provided).

Step 6

Place and align the blower assembly on the duct

adapter—being sure to place the motor near the

wiring hole in the duct adapter. NOTE: Blower

frame will extend 3/4 inch over each end of the

curb. Make sure the frame is centered on the curb.

Step 7

Using the 1/4 inch x 1-1/2 inch lag bolts, fasten

the blower assembly to the curb aligning the

prepunched holes in the blower assembly and

duct adapter.

Step 8

Locate the two (2) wood shipping blocks between

blower assembly frame and isolation base.

Remove and discard the hardware and the blocks.

Step 9

To begin installation of the base panels, remove

the lifting lugs. Save the lifting lugs and mounting

hardware. They will be reused in Step 10.

6Model LSF Assembly ®

Step 10

Set one (1) end panel in place on the end of the

support frame.

Replace the lifting lugs, reusing the hardware

to fasten the panel in place. Do not tighten the

hardware completely until instructed to do so. Use

a 3/8 inch - 16x1 inch thread cutting screw in the

center of the end base panel between the lifting

lugs. Do not tighten completely Repeat Step 10 for

the other end base panel.

Step 11

Install reinforcing angle on the two (2) side base

panels. Use #12 x 5/8 inch stainless sheet metal

screws for each reinforcing angle.

Step 12

Place the side base panel with reinforcing angle

on the duct adapter and fasten at both ends using

#12 x 5/8 inch stainless metal screws along both

vertical edges. Repeat Step 12 for the other side

base panel.

Step 13

Install corner gussets on the surface of the duct

adapter and fasten to the bottom corners of the

base panels, using four (4) #12 x 5/8 inch stainless

sheet metal screws in each gusset.

Step 14

Tighten the two (2) bolts in each lifting lug as well

as the one in the center of the base panel that

were not tightened in Step 10.

Model LSF Assembly

Step 15

Set one (1) section of the end louver assemblies

(without a cover) in place on an end base panel

(panels with lifting lugs). Fasten posts on louver

assemblies with 5/16 inch - 18x1 inch thread

cutting screws, using the prepunched holes in the

posts. Repeat Step 15 for opposite louver end

assembly.

LSF Sizes 24–30 continue on page 8

LSF Sizes 33–36 continue on page 10

STOP

8Model LSF Assembly ®

LSF Sizes 24, 27 and 30

Step 16

Set in place one (1) side louver assembly (with

hood panel). Use 5/16 inch - 18 x 1 inch thread

cutting screws to fasten posts to base panels as

in Step 15. Using #12 x 5/8 inch stainless sheet

metal screws, fasten the corner posts of the

adjoining sides together at the top and bottom.

Use four (4) screws per louver assembly. Repeat

Step 16 for opposite side louver assembly.

Step 17

Fasten mitered louver corners with #10 x 1-1/4 inch

sheet metal screws.

Step 18

Slide the ﬁlters into their racks using the diagram

on page 12 as a guide for proper size, location and

orientation of the ﬁlters.

Model LSF Assembly

LSF Sizes 24, 27 and 30

Step 19

Set center hood cover on top of louver

assemblies. Slowly close the side hood panels,

one at a time, adjusting the center section

slightly—if necessary—to attain a proper

alignment of all three hood panels.

Step 20

To secure the center hood, locate the center hood

latch. Mark where the slot meets the top louver.

Drill a 9/64 inch hole and insert one (1) sheet metal

screw through center hood latch and top louver.

Repeat Step 20 for opposite side of center hood.

Step 21

Set in place hasp bracket through hood latch.

Hold hasp bracket in place and swing hood panel

open. Mark hasp hole locations on top louver

and drill 1/4 inch holes at each mark. Insert

one (1)1/4inch - 20 x 1/2 inch machine screw

through the hasp bracket and top louver. Fasten

by attaching one (1) 1/4 inch lock washer and one

(1)1/4 inch x 20 hex nut to each screw. Follow the

same procedure for the other end of the hood.

Repeat Step 21 for the opposite side hood.

Step 22

Close side hood panels and insert rod retainer pin

through louver bracket to secure side hood panel.

Join side hoods to center hood along hood seams

using four (4) 5/16 inch - 18 x 1 inch serrated

ﬂange fasteners and four (4) 5/16 inch - 18 nuts on

each ﬂange.

Step 23

Using prepunched mounting holes in base panels,

fasten unit to roof curb nailer (fasteners not

provided).

Fasten

Here

Completed LSF

Size 24, 27 or 30

10 Model LSF Assembly ®

LSF Sizes 33 and 36

Step 16

Set in place one (1) side louver assembly with

spacer. Use 5/16 inch - 18 x 1 inch thread

cutting screws to fasten posts to base panels

as in Step 16. Using #12 x 5/8 inch sheet metal

screws, fasten louver spacer to corner post of

end assembly at the top and bottom. Use four

(4)screws per louver assembly. Repeat Step 16

for opposite side louver assembly.

Step 17

Fasten mitered louver corners with #10 x 1-1/4 inch

sheet metal screws.

Step 18

Slide the ﬁlters into their racks using the diagram

on page 12 as a guide for proper size, location and

orientation of the ﬁlters.

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