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GENERAL INFORMATION
Shipping
BAC cooling equipment is factory assembled to assure uniform
quality and minimum field assembly.
The VL models are shipped in one single section.
For the dimensions and weights of a specific unit or section, refer to
the certified drawing.
Inspection before Rigging
When the unit is delivered to the jobsite, it should be checked
thoroughly to ensure all required items have been received and are
free of any shipping damage prior to signing the bill of lading.
The following parts should be inspected:
- Sheaves and belts
- Bearings
- Bearing supports
- Fan motors
- Fan wheels and shafts
- Wet deck surface (VTL)
- Coils (VFL, VCL)
- Water distribution system
- Strainers
- Float valve assembly
- Spray Pump (VFL, VCL)
- Eliminators
- Interior surfaces
- Exterior surfaces
- Miscellaneous items
An envelope with checklist is stored in a wooden crate or a plastic
container which is placed in the lower section. For safety reasons,
access doors / panels may be sealed with bolts.
The wooden crate / plastic container also contains miscellaneous
parts such as gasket, hardware and accessory items.
Be sure to remove all miscellaneous items from the pan before
the unit is assembled.
Unit Weights
Before rigging any BAC cooling equipment, the weight of each
section should be verified on the unit certified drawing.
Note: These weights are approximate only and should be confirmed by
weighing before lifting when available hoisting capacity provides little margin
for safety.
Before an actual lift is undertaken, ensure no water or debris has
collected in the sump or elsewhere in the unit. Such
accumulations will add substantially to the equipment's lifting
2
!
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weight.
Anchoring
The unit must be properly anchored in place before operation
begins.
Refer to the suggested support details on the certified drawing for
locations of the mounting holes. Anchor bolts must be provided by
others.
Holes suitable for 20 mm bolts are provided in the bottom flange of
the lower section for bolting the unit to the support beams.
Leveling
The unit must be level for proper operation and ease of piping.
Support beams must also be level as shims should not be used
between pan and support beams to level to unit.
Connecting Pipework
All piping external to BAC cooling equipment must be supported
separately. In case the equipment is installed on vibration rails or
springs, the piping must contain compensators to eliminate
vibrations carried through the external pipework.
Purge Requirements
The installer of BAC condensers must ensure proper system purging
of air prior to operation. Entrained air can obstruct free drainage of
refrigerant and reduce condensing capacity, resulting in higher
operating pressures than design. To verify absence of non
condensables in the system, follow the instructions of the BAC
Evaporative Condenser Manual E115.
Refrigerant connections on site :
All connections in the external refrigerant pipework (installed by
others) must be leak free and tested accordingly.
Safety Precautions
All electrical, mechanical and rotating machinery constitute a
potential hazard, particularly for those not familiar with its design,
construction and operation. Accordingly adequate safeguards
(including use of protective enclosures where necessary) should be
taken with this equipment both to safeguard the public (including
minors) from injury and to prevent damage to the equipment, its
associated system and the premises.
If there is doubt about safe and proper rigging, installation,
operation or maintenance procedures, contact the equipment
manufacturer or his representative for advise.
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