January 2013
Page 15 of 15
Service & Maintenance
Always disconnect and isolate the mains electricity supply before installing,
maintaining or repairing this equipment. Note: All maintenance/repairs should
only be carried out by a competent electrician or Biddle appointed technician.
To ensure the cassette heater operates at full efficiency the inlet/outlet grilles, fan
impellers, housings and motors must be kept free of dust and debris. Build up of dust
on the fan impellers can cause vibration, noise and excessive wear on the motor
bearings.
Frequency of cleaning will depend on the environment, but we would recommend that
the unit be cleaned a minimum of every 3 months (failure to adequately maintain the
unit and provide a suitable cleaning schedule will result in performance degradation
and reduce the life expectancy of the heater).
Open the hinged grille by pulling out the two tabs fitted on the side of the grille, see
Page 6. Vacuum and clean the build-up of dirt and debris within the ceiling cassette
heater
(please note that the motor(s) are permanently lubricated and require no
additional lubrication).
Once the ceiling cassette heater has been cleaned check all electrical connections
within the unit ensuring terminals are tight and that crimped connections have not
become loose. Re-position the recessed grille ensuring the two tabs at the side of the
grille are correctly locked into place. Reconnect the electrical supply and test all the
functions operate correctly (See Commissioning).
Warranty
If any problems are encountered, please contact your installer/supplier. Failing this
please contact Biddle. All units are covered by a two year warranty period.
Care has been taken in compiling these instructions to ensure they are correct,
although Biddle disclaims all liability for damage resulting from any inaccuracies and/or
deficiencies in this documentation. Biddle retain the right to change the specifications
stated in these instructions.
Biddle Air Systems Ltd
St. Mary’s Road Nuneaton
Warwickshire England
CV11 5AU
Email: [email protected]
Tel: +44 (0) 24 76 384233
Fax: +44 (0) 24 76 373621
www.biddle-air.co.uk
