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3 - INSTALLATION
■ Coil maintenance
- Clean air is essential to the efficiency of the unit. Use an air filter.
- The coil may be cleaned with compressed air. However, make sure particles are not blown into any other sections of the unit.
- If a glycol/water mix is used in water-cooled heat exchangers, check the glycol/water ratio.
- If the coil is extremely dirty, disassemble it and clean it with a high-pressure washer. Keep the lance perpendicular to the coil
surface.
Take the necessary steps to protect the coil from the risk of freezing temperatures.
■ Heating coil
Check the operation of the frost protection thermostat (option) at the start of each winter.
If the outlet temperature on the frost protection coil is below 15°C, use a constant-volume control valve to prevent the frost protection
alarm being triggered and frost forming on the coil.
■ Cooling coil
Clean and replace the cells on the droplet separators as often as necessary. Prime the siphon at commissioning or each time the unit
is stopped for extended periods. Keep the condensate pan and drain clean.
■ Siphon (recommendations)
Install a drain and a bleed valve on the supply pipes in accordance with accepted industry practices.
Install a siphon and a vacuum breaker to discharge condensate from the cooling coils. Their height should be equal to twice the
negative pressure of the unit.
Handling units requiring more than one siphon:
Install siphons and vacuum breakers as shown in diagram 1.
diagram 1
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