Adjustment and maintenance operations |
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R.6.5.1 Heating coil
Check that the frost protection system is fully operational. A coil can burst due to frost if the frost protection system is
not operational.
R.6.5.2 Cooling coil
Once a year clean the drip tray beneath the cooling coil, as well as the drain and the water trap. Take care that there is
sufficient water in the water trap.
Note:
If a droplet eliminator has been fitted to the cooling coil, this must be checked once a year and cleaned if
necessary.
A service door in the duct system must allow access to inspection as well a cleaning of the droplet
eliminator.
R.6.5.3 Electric heating coil
Check that the built-in safety thermostat with an automatic reset function and the overheat thermostat with manual re-
setting are fully operational.
R.6.6
Plug fans
Dust can accumulate on the fan impeller which can cause imbalance and vibrations. The fan impeller must therefore be
checked once a year and cleaned, if necessary. Anti-vibration mounts and flexible connections should be checked at
the same time. If the anti-vibration mounts are damaged in any way they must be replaced.
R.6.6.1 Motor
The motor are usually fitted with factory lubricated bearings which require no further lubrication.
R.6.7
Attenuator
During operation dust particles can accumulate on the surface of the baffles. Attenuaters that are designed for dry and
wet cleaning are fitted with baffles that can be extracted from the unit casing. Large inspection doors give access to
easily extraction of the baffles. Baffles designed for dry cleaning can be vacuum cleaned. Baffles designed for wet
cleaning can be washed down using a soft brush and soapy water. The detergent used must be non-aggressive. After
washing, the baffles must be wiped dry with a cloth. Remember to clean the inside surface of the unit casing before re-
fitting the baffles.
R.6.8
Outdoor air section
Dust and dirt can accumulate in this section. Large inspection doors give access for cleaning.
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