Greenheck VKERS-MD Installation Manual

Part #474117

®

Fan Plenum Curb Assembly

Vektor™ ERS-MD Fan Plenum Curb Assembly Instructions

Greenheck VK-ERS curb is shipped in sections for field assembly. All required hardware is provided. Attachment
to roof or structural members and building weather protection by others.

Curb Section Parts List

ERS Plenum Section Fan Bypass Air Plenum (BAP) Section*

Description Quantity

End Panel 2

Corner Bracket 4

Side Panel 4

Side Bracket 2

Corner Bracket

Side Bracket

End Panel

Side Panel

Description Number of Fans Quantity

End Panel 2

Corner Bracket 4

Side Panel one fan

two fans

three fans

Center T-Bracket one fan

two fans

three fans

M-Wall Bracket one fan

two fans

three fans

Center Support Bracket one fan

two fans

three fans

Corner Bracket

Side Panel

Center T-Bracket

1
2
3

0
1
2

1
2
2

0
1
2

NOTE

Shipping with these assembly instructions are
parts and subassembly drawings which provide
dimensions and quantities required.

Fan Plenum Curb for Vektor™

1

M-Wall Bracket

Center Support Bracket

* Image shown is a representative drawing. Actual curb for bypass air

plenum section may have additional pieces, depending on quantity of
fans. Image is for a two fan system.

End Panel

NOTE

The side and end panels, and corner brackets
between the two sections are differentiated from
each other by the overall height. The panels and
brackets are 1-1/2 inches (38mm) higher for the
bypass air plenum section than ERS plenum section.

Hardware and Miscellaneous Items

• 5/16 x 1-1/2 316 SS bolt, lock and at washer

assemblies

• 1/2 x 1-1/2 316 SS bolt, 1/2 at (qty 2) washer, 3/4

flat (qty 2) washer, lock washer and nut assemblies

• 5/16 x 1-inch moly coat 316 SS bolts, rubberized

washer and lock washer assemblies

• Caulk

• Foam insulation

• Insulation clips

Assembly Instructions for ERS
Plenum Curb

Curb for the ERS plenum consists of four sides with
the fourth side support against the Vektor fan bypass
air plenum.

End Panel to Side Panel(s) Assembly

With side panel assembly complete, take either end
panel and set in an upright position, resting on roof
flashing, with mitered edge butted up against side
panel assembly corner miter. Take one corner bracket
and insert into side panel. Then insert into the end
panel. Secure to each panel piece using 1-inch moly
coat SS bolt assemblies and same method as used in
attaching the side brackets as before.

Repeat the procedure connecting remaining end panel
to the assembly using remaining corner brackets and
fastener assemblies.

Side Panel(s) Assembly

Examine the four side panel pieces. Two panels have
additional bolt holes at the corner end. Only matching
side panels are to be secured together. Location of

holes depends on size and quantities of fans for this
system.

ERS Side Panel without
additional corner holes

ERS Side Panel with
additional corner holes

With two matching side panel pieces, set in an upright
position resting on roof flashing. Butt flat edges of
side panels together with mitered edge towards
outside. Take one side bracket and slide into each
side panel. Secure the pieces together using the
1-inch moly coat SS bolt assemblies. Bolts are to be
tightened into the nut zerks. The insulation in all of
the brackets (side, corner and center T-bracket) has
not been fully secured so that it can be removed to
make fastening the moly coat bolt assemblies easier.
After tightening bolts, and replacing insulation if it
was removed, secure insulation in place using the
insulation clips.

Take the two remaining matching side panels and
connect using same procedure.

Jib Crane Assembly InstructionsFan Plenum Curb Assembly for Vektor™

2