Freeze Protection; Maintenance; Water Treatment - EVAPCO LPT Series Rigging And Installation Manual

Freeze Protection

The simplest and most effective way of keeping the recirculated water from freezing is to use a remote sump. With a remote sump,
when the recirculating water pump is shut off all recirculating water drains back to the sump.
If a remote sump is not being used, pan heaters are available. However, the basin heater will not prevent the external water lines,
pump or pump piping from freezing. For installations where water will be left in the basin during freezing conditions, the make-up
water supply, overflow and drain lines, as well as the pump and pump piping up to the overflow level must be heat traced and
insulated to protect them from damage. Any other connections or accessories at or below the water level must also be heat traced
and insulated.
The pan heaters are designed to prevent pan water from freezing when the unit is idle (no fan). If the unit will be operated
dry (no water over coil) but will not be completely drained, please consult EVAPCO marketing to upsize the heaters.

Maintenance

Once the installation is complete and the unit is turned on, it is important that it be properly maintained. Maintenance is not difficult
or time-consuming but must be done regularly to assure full performance of the unit. Refer to the operation and maintenance
instructions supplied with the unit for proper maintenance procedures.

Water Treatment

Proper water treatment is an essential part of the maintenance required for evaporative cooling equipment. Galvanized equipment
should be passivated prior to equipment startup to avoid the formation of white rust. For more information on passivation and white
rust, please download a copy of EVAPCO's Engineering Bulletin 36 at www.evapco.com / www.evapco.eu. The spray water and
the fluid inside the heat transfer coil should both be maintained with a water treatment program to ensure efficient system operation
while maximizing the equipments service life. For more information on recommended water chemistry for EVAPCO equipment, see
the Operation and Maintenance Instructions for this equipment.
Rigging Hardware Parts List
Table 6 lists those parts which are shipped together with the unit(s) for field assembly and/or spare parts. These parts will be
found in a cardboard box wrapped in plastic and secured in the basin of the unit.
Table 6 – LP Tower and LR Cooler and Condenser Attenuation and Discharge Hood Rigging Box Parts List
Nominal Plan
Area of Heat
Extra
Transfer Section Nozzles
3' x 6' (0.9 x 1.8 m)
5' x 6' (1.5 x 1.8 m)
5' x 9' (1.5 x 2.7 m)
5' x 12' (1.5 x 3.6 m)
8' x 9' (2.4 x 2.7 m)
8' x 12' (2.4 x 3.6 m)
Low Profile Forced Draft Towers, Coolers and Condensers
(galvanized and stainless steel construction)
5/16" x 1" (M8 x 25)
Bolt
1 14
1 14
1 22
1 26
2 22
2 26
5/16" (M8) 5/16" (M8)
Hex Nut Flat Washer
14 28
14 28
22 44
26 52
22 44
26 52
5/16" (M8) Sealer
Lock Washer Tape
14 2
14 2
22 3
26 3
22 3
26 3
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