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Assembly and Installation (Vektor-M Standard) (continued)
2. Cut roof opening for bottom intake
Layout the unit roof openings such that exhaust inlet of the unit will line up with the corresponding ductwork; refer
to Plenum Bottom Inlet Openings on page 10. Do not make opening larger than necessary. Be sure to allow for
the recommended service clearances.
3. Lift and install roof curb
Roof curb can be assembled at installation location on the roof deck or at ground level and lifted into position.
To lift from ground to roof deck, use spreader bar and support both end and center sections. Locate curb over
roof opening. Check that the diagonal dimensions are within
±1⁄8 inch of each other and adjust as necessary. Check curb or
structural supports for levelness. Both must be level to ensure
proper drainage from plenum and fan(s). Shim as required to
level. Attach curb to roof deck or support structure as specified
by structural engineer. Attach supplied gasketing to top of curb.
4. Set the ERS plenum cabinet
Lift ERS plenum cabinet to a point directly above the curb and
duct openings. While lowering, guide cabinet to align with duct
opening. Roof curbs fit inside the unit base. Set ERS plenum
cabinet into place on assembled VKCURB. Allow gasketing
on curb to compress before setting the fan bypass air plenum.
Make sure the unit is properly seated on the curb and is
level.
5. Set the Vektor fan bypass air plenum
Before moving the Vektor fan BAP into position, gasketing must be installed to seal the plenum sections against
leakage.
This gasketing is attached to the ERS plenum cabinet prior
ERS
to shipment. Verify that it is in place and not damaged or
Plenum
missing prior to joining the two plenums together.
Cabinet
The assembly hardware
(stainless steel bolts)
required to join the
sections is located in
the Vektor fan bypass air
plenum accessory kit.
ERS
Plenum
Cabinet
Roof Curb
ERS and Vektor Fan Bypass Plenum
Assembly Installed on Roof Curb
the gap between the marriage wall of ERS and BAP. Gasket between ERS and BAP must be evenly compressed
to form airtight seal with no gaps. Inspect the entire joint between sections. If gap exists, then carefully hoist the
BAP slightly and apply force until contact is made with ERS section as shown in figure below, making sure to line
up bolt holes. If required, use come-along or other pulling hardware to draw sections tightly together. Once this
gap is removed, slowly lower BAP into final position.
®
DETAIL B
Fan Bypass
Assembly Hardware Kit
Air Plenum
(BAP)
5/16 - 18 UNC x 2-1/2 lag bolts
5/16 inch flat washers
1/2 inch flat washers
3/4 inch flat washers
Quantities in hardware kit will vary
by unit size and configuration.
Gasket
Apply
Force
Fan Bypass
Air Plenum
(BAP)
Slots
around perimeter on
each side of plenum
FOR GENERAL INFORMATION ONLY. CONTACT FACTORY FOR CERTIFIED DRAWINGS AND SPECIFICATIONS.
REFERENCE CAPS FOR VEKTOR-MD DIMENSIONS.
ERS
Plenum
Cabinet
Vektor-M Standard ERS Plenum Cabinet
Installed on Roof Curb
Gasketing
Lift and set the Vektor fan BAP on the curb against the
ERS plenum. Follow rigging and lifting instructions in
the Vektor-MH, Vektor-MD, and Vektor-MS installation
instruction, document number 464652. While lowering
BAP into final position and just before the base touches
the curb, apply force on front of plenum. This will tighten
Vektor-ERS Energy Recovery Plenum Laboratory Exhaust
Pre-installed
gasket material
Roof Curb
Gasketing
VK-ERS
DETAIL A
MARRIAGE WALL
7
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