Evap Cooling Service
Service Contract Visit Plan Overview
Evaporative Coolers offer simple and highly effective cooling for large spaces at a low cost. With regular maintenance, in accordance with the manufacturer’s specifications, you can look forward to years of reliable service.
The critical necessities
There are a number of aspects which are critical to correct operation and servicing.These include:
- Ensuring the removal of contaminant build up, it improves performance and prolongs the life of the equipment.
- All maintenance and repair work must be performed by trained and qualified technicians.
- It is recommended evaporative cooling units have two services, pre-season and post-season.
Visit 1 (Pre-Season Service)
Normally carried out in March / April.The purpose is to clean, check, service and commission the system for summer operation.
- Check system is operating correctly in ventilation mode including fan speeds from high to low.When satisfied continue with service.
- Remove the four Celdek pads and louvres from the unit.
- Isolate the power on the external isolation switch.
- Apply cleaning chemical with a brush to the water tank and surrounding areas to remove any build up of salt and scale.
- Clean all parts within the unit if necessary, i.e. water pump, water inlet valve, float sensor, water distributor and drain valve.
- Rinse thoroughly with water and if necessary repeat chemical clean.
- Wash the pads with clean water to remove any dust/dirt build up. Check condition of pads to ensure no algae or scale is present. If necessary clean pads with warm steam.
- Switch on the power to the system by the external isolator.
- Turn on the water supply to the unit.
- Set the controller to cooling mode checking all the working components as the system fills with water.
- When the water valve has switched off, check the water level is correct and if necessary adjust the ball valve to suit.
- Check all components operate correctly.
- Ensure all operating parameters are programmed into the system from the wall controller.
- Isolate the power from the external isolator.
- Re-fit the Celdek pads and louvres back into the unit and secure as necessary.
- Switch on the power to the system.
- Operate the unit in cooling mode and check the system is operating and distributing water evenly over the pads.
- Set necessary parameters on the electronic wall controller for customer’s summer operation
This work requires access to the roof and the evaporative unit.
Visit 2 (End of Season Service)
Normally carried out in October / November.The purpose is to de-commission the cooling system for the winter which involves isolating the water supply to avoid freezing and leaving the system to operate in ventilation only mode.
- Isolate water supply to the air cooler.
- Using electronic wall controller operate drain valve to empty system.
- Run the system in ventilation only mode to check system is operating correctly with the cooling mode switched off (including fan speeds high to low).
- Set wall controller parameters to customers operating requirements for winter period (time-clock, fan speeds etc).
- If fitted check operation of extract fans (speed controller if fitted).
This work will not require access onto the roof or evaporative unit
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