3
PRE-INSTALLATION
Unpacking and Inspection
All units are carefully inspected at the factory throughout the
manufacturing process under a strict detailed quality assurance
program. All major components and sub-assemblies are care-
fully tested for proper operation and verified for full compli-
ance with factory standards. Operational testing of some cus-
tomer-furnished components such as DDC (Direct-Digital
Controls) controls, pneumatic control valves and switches may
be a possible exception.
Each unit is carefully packaged for shipment to prevent dam-
age during normal transit and handling. Equipment should al-
ways be stored in a dry and covered place, and in proper orien-
tation marked on the carton.
All shipments are made F.O.B. ex-factory and it is the respon-
sibility of the receiving party to inspect the equipment upon ar-
rival. Any obvious damage to the packaging and/or its contents
should be recorded on the bill of lading and a claim filed with
the freight carrier.
After inspecting condition of packaging exterior, carefully re-
move each unit from the carton and inspect for hidden damage.
Any hidden damage or missing components should be record-
ed and immediately reported to the carrier and a claim filed. In
the event a claim for shipping damage is filed, the unit, ship-
ping carton, and all packing must be retained for physical in-
spection by the freight carrier. All equipment must be stored in
the factory shipping carton with internal packing in place until
installation.
At time of receipt, equipment type and arrangement must be
verified by review of order documents. Should any discrepancy
be found, the local Sales Representative must be notified im-
mediately so that proper action may be taken.
Should any questions arise concerning field warranty repairs,
factory must be notified BEFORE any corrective action is
taken.
When repairs or alterations can be accomplished locally, the
factory must be fully informed of the extent and expected cost
of repairs before work begins. When factory operations are re-
quired, the factory must be contacted for authorization to return
equipment and a Return Authorization Number will be issued.
Unauthorized return shipments of equipment and shipments
not marked with an authorization number will be refused. In
addition, any claims for unauthorized expenses will not be ac-
cepted by the manufacturer.
Prepare Job Site 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 the job
site. Check all the critical dimensions such as field piping, wir-
ing, and duct connection to ensure they agree with job require-
ments. Refer to job drawings and product dimension drawings
as required. Instruct all trades in their part of the installation.
Should any discrepancies be discovered, contact your local
representative before continuing with unit installations.
Identify and Prepare Units
For each unit, confirm incoming and control power require-
ments match available power source. Refer to unit nameplate
and wiring diagram.
1. Review all tags on unit to determine if shipping screws are
to be removed. Remove screws as directed.
2. Rotate fan wheel by hand to ensure that fan is unrestricted
and can rotate freely. Inspect for shipping damage and fan
obstructions. Adjust blower wheel as required.
Protect Units from Damage
Care must be taken to assure that no force or pressure is ap-
plied to the coil, piping or drain stub-outs during handling. The
equipment covered in this manual IS NOT suitable for outdoor
installations. The equipment is never to be stored or installed
where it may be subjected to a hostile environment such as
rain, snow, or extreme temperatures.
Before, during, and after installation, take specific caution to
prevent foreign material such as paint, plaster, and drywall dust
from being deposited in the drain pan, on the motor or blower
wheels and cooling/heating coils. Failure to do so may have seri-
ous adverse effects on unit operation, and in the case of motor
and blower assembly, may result in immediate or premature fail-
ure and voiding all manufacturers’ warranties. Some units and/or
job conditions may require some form of temporary covering
during construction. While the manufacturer is not involved in
the design and selection of support methods and components, it
shall be noted that unacceptable system operating characteristics
and/or performance may result from improper or inadequate unit
structural support. After mounting, the unit is then ready for the
various service connections such as water, drain and electrical.
Verify which proper type of services are actually provided to the
unit. On units requiring chilled water and/or hot water, verify
proper line size and water supply availability.
INSTALLATION
Step 1 — Place Unit In Position
Install mixing box when ordered with unit. Follow mixing box
installation instructions outlined in the next section. The hori-
zontal blower coil units have
5
/
8
in. knockouts in each corner of
the top and bottom panels for
1
/
2
in. all threaded rods (not sup-
plied with unit) to pass through (see Fig. 2). Always support
the unit at the base until mounting is complete.
Fig. 2 — Unit Installation - Threaded Rod Suspension
Sufficient clearance must be kept for service and maintenance.
Minimum recommended clearance for maintenance of the mo-
tor and blower wheel is 29 in. on the access side of the unit.
Filters can be removed from both sides and the bottom of the
filter frame. If side access to the filter is desired, the minimum
clearance required is the width of the filter rack plus 6 inches.
See Fig. 3 for additional clearances information. For drain pan
or coil removal, the recommended clearance should be no less
than the width of the unit plus connections.
ISOLATORS - 4 PER UNIT
(FIELD FURNISHED
AND INSTALLED)
WASHER AND DOUBLE NUT (FIELD
FURNISHED AND INSTALLED)
5/8” KNOCKOUTS FOR
SUSPENSION RODS (4
PLACES TOP AND 4 PLACES
BOTTOM OF UNIT)
THREADED ROD SUSPENSION (FIELD
FURNISHED AND INSTALLED)
TRAPEZE -
RECOMMENDED ON
UNIT SIZE 30
