2
INTRODUCTION
This document contains general installation instructions for the
40UV, UH unit ventilators. Refer to the unit wiring diagram or to
specific manufacturer literature for any other type of factory-
mounted controls.
See submittal drawings for unit configurations, dimensions,
clearances, and pipe connections. Refer to unit wiring label for
all electrical connections; follow NEC (National Electrical
Code) and local codes.
PRE-INSTALLATION
Unpack and Inspect Units
Immediately inspect each unit upon receipt. Remove shipping
wraps from all units. Check the shipment against shipping order.
If shipment is damaged or incomplete, file claim with transporta-
tion company and advise Carrier immediately.
To prevent handling damage, remove shipping pallet only when
within a few feet of final position. Use 2 or more pallet dollies to
move units. See Fig. 2.
Fig. 2 — Handling the Unit
Protect Units from Damage
To maintain warranty, protect units against adverse weather,
theft, vandalism, and debris on the jobsite. Do not allow foreign
material to fall into drain pan. Prevent dust and debris from be-
ing deposited on motor and fan wheels.
If the equipment is stored for any length of time before installa-
tion, it should remain in its shipping container in a clean, dry, and
climate controlled area.
Prepare Jobsite for Unit Installation
To save time and to reduce the possibility of costly errors, set up
a complete sample installation in a typical room at jobsite. Check
all critical dimensions such as pipe, wire, and duct connection re-
quirements. Refer to job drawings and product dimension draw-
ings as required. Confirm that building construction is adequate
to support the unit. See Table 1 for unit weight data. Instruct all
trades in their part of the installation.
Identify and Prepare Units
1. Be sure power requirements match available power
source. Refer to the unit nameplate and wiring diagram.
2. Remove front (40UV) or bottom (40UH) access panels
from the unit. Retain the
5
/
32
-in. socket head fasteners
and panels for re-installation later.
3. Rotate the fan shaft by hand to ensure that fans are unre-
stricted and can rotate freely. Check for shipping damage
and fan obstructions.
INSTALLATION
Step 1 — Place Units in Position
PLACING VERTICAL UNITS
1. Select the unit location; ensure that service clearance is
provided. Allow enough grille clearance to maintain
unrestricted airflow. See submittal drawings and Fig. 3
and 4 for dimensions.
2. Make sure wall behind unit is smooth and plumb; if
necessary, install furring strips on walls with irregular
surfaces or mullions. Furring strips must be positioned
behind mounting holes in unit. Fasteners, furring strips,
and other seals (if required) must be field-supplied.
3. Remove all wall and floor moldings from behind the
unit.
4. Move unit into position. Unit must be snug against wall
and furring strips.
5. Adjust unit leveling legs so unit is level. Unit must be
level for proper operation and condensate drainage.
6. Using field-supplied fasteners, reach into unit and attach
unit to the wall using the
3
/
4
-in. mounting holes in the
back panel.
7. Protect the unit from jobsite debris. Do not allow foreign
material to fall into drain pan. Prevent dust and debris
from being deposited on motor or fan.
8. Vertical units are intended for exposed floor mount appli-
cation only. Do not suspend from structure.
PLACING HORIZONTAL UNITS
1. Select the unit location; ensure that service clearance is
provided. Allow enough grille clearance to maintain
unrestricted airflow. Make sure that ceiling is able to
support the weight of the unit. See Fig. 5-7 for nominal
unit weight. See submittal drawings and Fig. 5-7 for
dimensions.
NOTE: See page 30 for additional requirements regarding units
ducted to multiple openings.
2. Ensure that bottom panels have been removed from unit.
When unit is lifted, access to the
3
/
4
-in. mounting holes is
through the bottom of the unit. Hanger rods and fasteners
and other required hardware must be field-supplied.
3. Using a forklift or other mechanical lifting device, raise
the unit to the mounting position. If forklift or other
lifting device is likely to contact a painted wall surface,
protect the surface as necessary.
4. Use rods and fasteners to suspend the unit at the
mounting holes on the top of the unit. The unit must be
suspended at the
3
/
4
-in. mounting holes; do not use any
other locations.
5. If desired, install field-supplied vibration isolators.
Adjust isolators so unit is uniformly suspended and
pitched.
6. To ensure proper drainage and operation, ensure unit is
level and tighten all fasteners. DO NOT mount the unit
on a slope. Pitch of horizontal suspended units can
change after coil is filled; recheck after filling coil.
7. Protect the unit from jobsite debris. Do not allow foreign
material to fall into drain pan. Prevent dust and debris
from being deposited on motor or fan.
CAUTION
To prevent handling damage, remove pallet only when
within a few feet of final position.
CAUTION
Units must be installed level and plumb. Failure to do so
may result in excessive vibration and/or premature failure.
