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Freshman Series - Owner's Manual - Installation, Operation, and Service Instruction - Version 1.1 EN
4. Check to be sure that the back of the Classroom Air Handler is centered directly in front of the wall sleeve opening, and
then carefully slide the air handler back into place (the unit must be level).
5. If the wall is not perfectly perpendicular to the oor, it may be necessary to slide shims under the front or back of the air
handler.
6. Open the bottom and top front service panels with the door key provided.
7. Lag the unit securely to the oor in at least two places. This should be done through the bottom pan of the air handler from
the inside.
8. Lag the classroom air handler to a couple of the wall studs, or other structural wall components, through the Unit back
cover near the top portion of the unit above the indoor coil. (Use lags and shields if necessary).
9. Once the air handler is in place, the wall sleeve should have a positive seal along all points of contact against the air handler
and must not interfere with the operation of any dampers. This can be checked from the outside if the exterior louver has
not been installed or has been provided with a hinged access.
10. To assure a watertight seal, caulk or tape the wall sleeve to the exterior perimeter of the wall opening. Follow standard
weather proong procedures when installing and caulking the exterior louver and wall sleeve to prevent the inltration of
water into the wall cavity.
11. Install the kick plate cover along the front at the base of the unit ventilator and fasten into place along the sides with a
couple of screws.
12. Apply a small bead of silicone around the outside of the air handler where the unit meets the wall. This will assure a good
airtight seal and provide a nished appearance.
13. Reinstall the front service panels with the door key provided.
NOTE:
Some unites have a drain pan in the bottom (i.e. ERV units); avoid fastening the unit through the drain pans.
NOTE:
When the classroom air handler is tted with a Rear Standoff (RSO) or Rear Plenum Assembly (RPA) it is
necessary to fasten the unit to the wall by using a eld supplied 2” x 2” x 34” 18ga. Angle Brace, that must be
secured to the top cover of the RSO assembly.
It is imperative that the air separation dividers in the wall sleeve be installed correctly to maintain
a separation between the stale, exhausted relief, or condenser air from the incoming outside air.
-
cated in the installation drawings provided.
6.3 General Assembly and Installation - continued
Installation Guide
was sent with the Unit for exact measurements, descriptions and installation details.
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