TEL AFA4000/E, Installation And Operating Manual

Page: 197 / 210

AFA4000/E VAV Airflow Controller / p.197
14.2 Contamination
When any part of the Auto Sash Control system is contaminated it must be either removed and
decontaminated or disposed of and replaced with a new part.
The local in-house Risk assessment, removal and disposal procedures (SOP) and COSHH
requirements must be observed whilst de-contaminating or disposing of the contaminated part
and should only be carried out by trained and competent parties.
Isolate the power to the controller before removing or replacing any contaminated parts to
avoid the risk of electric shock.
14.3 Maintenance
14.3.1 Faulty / replacement parts
If a faulty part has been identified (section 13.1), the Auto Sash Control system should be
isolated and marked as
Faulty – do not use / Out of service until a replacement part has been
fitted. The fume cupboard can be operated manually during this period.
No special tools or parts are required for maintenance.
14.3.2 Validation
Once a replacement part has been fitted the Auto Sash Control system operation should be fully
tested to ensure safe operation.
A new tested label should be fitted or a new date should be applied to an existing label to show
that the system has been repaired and tested and is safe to use.