GREENHECK KSQ Mixed Flow Supply Fans User Guide

Quick Start Guide
KSQ HOOD ASSEMBLY

KSQ Mixed Flow Supply Fans

• Hood, filter, and cover parts are shipped separate from the fan and require field assembly
• This Quick Start Guide does not replace the Installation Operation Manual (IOM), refer to the IOM for more information
• Installation process for the horizontal and bottom intake hoods are the same

Parts List

• (1) Fan
• Outdoor cover kit
(1) End cap with hole
(1) End cap without hole
(2) Mullions (size 18-33 only)
Side panels
(2) Size 7-16
(4) Size 18-33
Top panel(s)
(1) Size 7-16
(2) Size 18-33
Hardware kit
(1) Size 7-16
(2) Size 18-33
(1) Conduit Kit| • Intake Hood
(2) Side Panels
Top Panel(s)
(1) Size 7-16
(2) Size 18-33
(4) Filter Track
• Filters
• Sealant (supplied by others)
• (1) Disconnect switch (optional)
• (1) Isolator kit (optional)
• Liquid-tight conduit (supplied
by others)
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Tools List

• Impact Driver
• 1/2 inch nut driver
• 5/16 inch nut driver
• C clamp locking pliers

Step 1 – Mount Fan in Place

• Place the fan in the desired location and mount to the curb or equipment supports per the IOM

Step 2 – Assemble Filter Tracks x2

• Align the holes on the top and bottom filter tracks and install a spring nut over the two overlapping holes. Size 30 and 33 (top rails utilize a different design than shown).

Step 3 – Fasten Filter Tracks to Side Panels

• Install a 1/4 inch thumb screw in the slot and 1/4 inch bolt in the hole to tighten into the spring nuts
• Position filter tracks on the opposite side of the side panel flanges

Step 4 – Install Side Panels

• Apply sealant to the mating surface of the inlet panel
• Use the provided 5/16 inch fasteners to install both side panels to the inlet of the fan with filter tracks facing each other, do not fully tighten

Step 5 – Install Top Panel

• Apply sealant to the mating surface of the inlet panel
• Place the top panel on top of both side panels and against the inlet panel (ensure side panels are inside the top panel)
• Use the provided 5/16 inch fasteners to attach the top panel to the inlet of the fan
• Use provided sheet metal screws to fasten the top panel to the side panels
• Fully tighten the 5/16 inch fasteners holding the side plates to the inlet plate

Step 6 (Horizontal Discharge Only) – Install Ductwork

• Apply sealant to the mating surface of fan outlet
• Use the provided holes to mount ductwork and/or duct adapters to the horizontal discharge of fan (hardware supplied by others) a C-clamp locking pliers can be used to hold the duct

Step 7 – Install End Caps

• TAKE CARE NOT TO DAMAGE THE FOAM TAPE ON THESE PARTS
• With the flanges away from the fan, align the half-moon cutouts on the end cap with the screws on the inlet and outlet
• Use the provided self-tapping sheet metal screws to fasten the end cap to the fan DO NOT OVER-TIGHTEN
• Install remaining end cap on the opposite side using provided self-tapping sheet metal screws DO NOT OVER-TIGHTEN

Step 8 (Sizes 18-33 only) – Install Side Mullions

• Install the left and right side mullions using two self-tapping sheet metal screws per side

Step 9 – Install Side Panels

• Install with the drip edge down and align the half-moon cutouts on the side panel with the inlet and outlet fasteners
• Fasten the side panels to the fan with the provided self-tapping sheet metal screws
• Sizes 18-33 have two (2) panels per side, which are fastened to the mullions and to the inlet and outlet plates Top Bottom Top Bottom SIZE 7-16

Step 10 – Mount Disconnect Switch (if applicable)

• Determine ideal location for the disconnect switch
• Install disconnect per manufacturer’s suggestions

Step 11 – Install Conduit

• Connect the provided flexible metal conduit (FMC) to the power junction box
• Route the opposite end of the conduit assembly with the female connector to the hole in end cap
• Insert the liquid-tight connector into the hole in the end cap and screw into the female connector, as shown
• Cut the liquid-tight conduit (supplied by the contractor) to length, and install from the elbow to the disconnect switch or power supply SIZE 7-16

Step 12 – Route Wiring to Junction Box

• Route the wiring from the junction box to the disconnect through all conduit, fittings and conduit leads
• Junction boxes (and “Dial on Fan” if Vari-Green®) on top of the fan are inaccessible when outdoor cover is fully installed

Step 13 – Install Top Panel(s) with Cover

• TAKE CARE NOT TO DAMAGE THE FOAM TAPE ON THESE PARTS

• Size 7-16:
  Install the top panel of the outdoor cover to the fan using the provided selftapping sheet metal screws

• Sizes 18-33:
  1. Install the first top panel with the single return flange using the provided self-tapping sheet metal screws (reference 1)
  2. Install the second top panel with the double return flange by hinging it around the first panel as illustrated (reference 2)
  3. Use the self-tapping sheet metal screws to mount second panel

Step 14 – Install Filter(s)

• Loosen both thumb screws on the intake hood and drop filter tracks
• Aluminum washable filters come standard with the unit
• MERV13 pleated filters are optional and stack on top of the aluminum filters
• Return the filter tracks up to the operating position and tighten the thumb screws
• Follow filter replacement and/or cleaning intervals recommended by the filter supplier

486128
• KSQ Assembly, Rev. 1, June 2023
• Copyright © 2023 Greenheck Fan Corp.

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