AirSource CustomAir Handbuch für Installation, Betrieb und Wartung - Seite 13

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AirSource CustomAir Handbuch für Installation, Betrieb und Wartung

MAINTENANCE

Fans

Due to the bearing type in EC fans, they are maintenance free. However, once the

grease consumption period has expired (approximately 30000-40000 hours), it is

grease consumption period has expired (approximately 30000

necessary to replace the bearings.

At least every 12 month

At least every 12 months a major inspection of the fan section should be carried out

as follows, whilst observing all relevant safety regulations:

 Fully isolate electric supply to fan

Fully isolate electric supply to fan-motor.

 Do NOT continue until fan impeller has come to a standstill.

Do NOT continue until fan impeller has come to a standstill.

 Do NOT use a high

Do NOT use a high-pressure jet or any aggressive, paint solvent cleaning

agents when cleaning.

 Inspect and clean the fan if necessary to prevent imbalance due to ingress of

Inspect and clean the fan if necessary to prevent imbalance due to ingress of

dirt, using a damp

irt, using a damp cloth.

 Be careful to avoid using too much force and damaging the fan impeller.

Be careful to avoid using too much force and damaging the fan impeller.

 Keep the airways of the fan free to prevent danger due to flying objects.

Frequent inspection should be made of the fan.

depend on how essential the service, the application operating environment

depend on how essential the service, the application operating environment, and

number of hours run, but shou

number of hours run, but should not be more than three monthly intervals. On fans

operating in dusty atmospheres or exposed to weather will need to be inspected and

cleaned every 3 months.

If a fan is stationary for long periods in a humid atmosphere, it should be switched on

for a minimum of two hours every month to remove any moisture that may have

minimum of two hours every month to remove any moisture that may have

condensed within the motor.

Electric

These should be wired up in accordance with I.E.E. Regulations and local by

These should be wired up in accordance with I.E.E. Regulations and local by-laws. It

These should be wired up in accordance with I.E.E. Regulations and local by

Heater

is essential that the heater contactor is interlocked

essential that the heater contactor is interlocked with the fan starter to prevent

Batteries

the heater being energised when the fans are not running. Additionally, it is

recommended that a fan run on facility is included within the controls to dissipate

heat form the battery at the end of operation. All

heat form the battery at the end of operation. All heater batteries incorporate a

safety cut-out which must be wired into the controls system. Ensure the size of

cable and contactors are suitable for the load being carried. It is not recommended

for P.V.C. cable to be run into the terminal box. The cable

for P.V.C. cable to be run into the terminal box. The cable should be insulated with

high temperature sleeving.

Heating

Coils should be inspected every three (3) months to check for build

Coils should be inspected every three (3) months to check for build-up of foreign matter

& Cooling between the fins and that coil and connections are free from leaks. Should any foreign

between the fins and that coil and connections are free from leaks. Should any foreign

Coils

matter be found, cleaning should be carried out with a high

the air-off face of the coil. Alternatively, the coil can be washed down with a mild

off face of the coil. Alternatively, the coil can be washed down with a mild

solution of detergent and water, after which the coil should be thoroughly rinsed

solution of detergent and water, after which the coil should be thoroughly rinsed with

solution of detergent and water, after which the coil should be thoroughly rinsed

clean water. Eliminators should be cleaned down using a soft brush and hot water, any

sediment cleared out of drain tray and drain pipe, and if necessary repair any areas of

corrosion.

Coils located at the high points of the system should be regul

Coils located at the high points of the system should be regularly vented.

s a major inspection of the fan section should be carried out

rways of the fan free to prevent danger due to flying objects.

tion should be made of the fan. General inspection of the fan will

ld not be more than three monthly intervals. On fans

being energised when the fans are not running. Additionally, it is

out which must be wired into the controls system. Ensure the size of

cleaning should be carried out with a high-pressure air line directed at

jet or any aggressive, paint solvent cleaning

General inspection of the fan will

heater batteries incorporate a

should be insulated with

Installation, Operation & Maintenance Manual

stallation, Operation & Maintenance Manual

40000 hours), it is

n starter to prevent

up of foreign matter

pressure air line directed at

arly vented.