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PRE-INSTALLATION
Inspection
Inspect the unit; file a claim with the shipping company if the unit
is damaged. Check the packing list to ensure that the correct items
have been received and notify your Carrier representative of any
discrepancy.
Rigging and Handling
To transfer the unit from the shipping platform to the storage or in-
stallation site, refer to rigging label on unit and these instructions.
CAUTION
A forklift truck cannot be used to move units or components.
Failure to follow these safety precautions could lead to
personal injury and/or equipment damage.
Base units are shipped fully assembled, except when sections are
separately ordered. All 39M units can be rigged using the lifting
brackets, as shown on the rigging label on the unit.
1.
Lift the unit with slings and header bars, using clevises and
pins in the large round holes in the unit's lifting brackets.
2.
When the unit is in its final location, do not remove the caps
from the coil connections until the coil is ready for piping. Do
not remove grease from the fan shaft until the drive sheave is
ready for installation.
Long-Term Storage
Store unit in a clean, dry place and protect it from weather and
construction traffic.
1.
The storage site should be level, rigid, and free of debris. If
the site is in a heavy rain area, set the unit off of the ground.
2.
Do not store the unit in a heavy traffic area or on a vibrating
surface. Vibration can damage stationary bearings.
3.
Ensure that all coil connections have shipping caps in place.
Cover the entire unit with a waterproof tarpaulin or plastic
CEILING — RECOMMENDED
PLATFORM MOUNT
CEILING — RECOMMENDED
IN-LINE BEAM MOUNT
coverall; if the unit is stored on the ground, extend the cover
underneath the unit. Secure the cover with tiedowns. Do not
remove cover or coil end caps until unit is ready for final
installation.
4.
Monthly — Move the coverall, enter the fan section through
the access door or fan inlet, and slowly rotate the fan and
motor by hand. This operation prevents bearing corrosion by
redistributing the bearing grease.
5.
Direct drive plenum fans with EC motors not operated for
a lengthy period in installed condition shall be started and
operated per the following:
a. Dry environment - Run full speed for one hour at least
b. Damp environment (outdoors, for example), run full
Service Clearance
When planning the placement of the unit, ensure adequate space for
service access. Typical service operations can require removing the
coils and filters and accessing the motor and damper linkage. Refer
to AHUBuilder
Drain Positioning
To prevent build-up of condensate in the drain pan and ensure
proper operation of the drain system, position the unit so that con-
densate drain can be properly trapped. Refer to the Condensate
Drain section on page 144 in the Installation section.
Unit Suspension
Unit suspension methods are shown in Fig. 16. A field-supplied
platform mount is recommended, especially for larger unit sizes.
An in-line twin-beam mount is also recommended. See Fig. 16
and 17. Units can also be supported by suspending the unit from
cross-beams at the joint between each unit component. Ensure that
suspension rods are secured to adequately support the unit and that
the rods extend entirely through their associated fasteners. Also
ensure that suspension rods do not interfere with service access to
the unit.
MOUNT UNIT TO FIELD-SUPPLIED
PLATFORM THROUGH BASE RAIL
MOUNT UNIT TO FIELD-SUPPLIED
PLATFORM THROUGH BASE RAIL
Fig. 16 — Unit Suspension
89
every four months.
speed for at least three hours every month.
program for recommended clearances.
®
CEILING — ALTERNATE
CROSSBEAM MOUNT
A39-4230
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