REYMSA COOLING TOWERS, INC.
www.reymsa.com
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In Double Fan Cooling Towers (per cell), ensure to Start-Stop the fan motors at the same
time. If you need more information, please contact REYMSA.
WARNING
C.5.1. BASIN HEATER OPERATION
REYMSA recommends the use of an Immersion Heater System in the Tower basin, designed to provide freeze
protection. Such system consists on heating element (3-12 kW), control panel, temperature and level sensors
(refer to section “A.10.3. BASIN HEATER”).
▪ Visually check that the water level is above sensor electrode. The heater element should be covered with
at least 2” of fluid, while heater is energized.
▪ The heater will energize if the temperature of the basin water falls below the thermostat set point and
the water level is above the sensor level.
C.5.2. REMOTE SUMP OPERATION
A remote sump tank located in an indoor heated building is a simple option of freeze protection. When the
Tower shuts down, the water is drained into the remote sump tank which is in a heated atmosphere.
C.6. SEASONAL SHUT-DOWN
When the system needs to be shut-down for a certain period of time longer than 3 days, REYMSA Cooling
Towers recommends the following procedure.
▪ Ensure that all electronic components (fan, motors, and control
panels) are unplugged and locked out, failure to do so could
result in personal injury or property damage.
▪ The basin and all piping needs to be carefully drained, cleaned,
and blown out all liquid, making sure there’s not water inside
to prevent Freezing on winter season. It’s recommended to use
a mix of antifreeze in the last wash and vacuum it to stay clear
of ice.
▪ As an advice, close the make up water valve and drain the line.
▪ To avoid any ice formation due to rain or snow and keep out
dirt from inside and outside the towers components, covered them. Especially the fan discharge opening.
(As shown in Figure C-9) Taking advantage that the system is turned off, you may want to do Tower
service and maintenance. (Adjust motor base screw, balance and adjust fan assembly, clean the inside
and outside of the equipment).
▪ Turn on the motor once a week for about 5 minutes. Before starting the motor, verify there is no
obstruction on the fan.
▪ RTG Models: If the drive is to be inactive for a prolonged period, it is recommended that the unit be
completely filled with oil. Drain excess oil before returning the gear box to service.
▪ After the seasonal shut-down period you may follow the start up instruction discussed on “Section B. START-UP”.
Figure C-8: Fan discharge covering
Immersion heater should be covered with at least 2” of fluid, while heater is
energized to prevent any failure by overheating
WARNING
Operation
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