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4.7.8 Air Conditioning
          ‘Comfort  cooling’  will  normally  be  provided      Where  compressor  units are wall  mounted,
          in  the  form  of  a  split  system  ceiling  mounted   consideration should be given to the installation
          cassette  unit  to  provide  both  a  cooling  and    of  an external drip tray (especially  where
          heating facility. The equipment shall be supplied     located above a pedestrian route.
          by a recognized reputable manufacturer and
          the  HVAC  contractor  shall  be  responsible  for    The main electrical contractor  shall  run a
          selecting suitable and appropriate equipment          30amp single phase supply to the position of the
          for the purpose.                                      outdoor unit, terminating in a suitable outdoor
                                                                weathered, lockable isolator.
          The unit shall be sized with regards to the size
          of the store and the operating conditions to be       Condensate  from  the  indoor  unit  shall  be
          found therein.                                        run  to a suitable drain position, in concealed
                                                                pipework.  Refrigeration  pipework  and  wiring
          The  system  shall  generally  comprise  an  indoor   shall be neatly clipped to the structure and fixed
          cassette  unit,  outdoor  wall/floor  mounted         to cable tray as appropriate. Insulation shall be
          condensing  unit  and  all  inter-connecting          a cellular foam product using CFC-free blowing
          refrigerant pipework, insulation and associated       agents, such as by Armaflex. .
          power and control wiring from an isolator left by
          the electrical subcontractor.                         Refrigeration medium shall be to current industry
                                                                standard  approved  specification  and  suitable
          The indoor  unit shall  be controlled  by a wall      gas.
          mounted hard wired matching controller.
                                                                As an alternative to a split cassette system, an
          The face plate of a ceiling mounted indoor unit       appropriately designed ducted system may be
          in the Bake & Serve or Customer area must be          installed if the franchisee wishes.
          sprayed to RAL 7037 to match the grey ceiling
          colour.

          Units in  other  areas and Wall mounted  units
          should however always be left in standard white.

          The outdoor condensing unit will be wall or floor
          mounted,  as  shown  on  the  project  drawings,
          at a position to give access for maintenance.
          Safe access is required to compressor  units
          located  on  roofs  in  the  form  of  appropriate
          edge protection, task lighting and non slip floor
          finishes.





          4.7.8                      Air Conditioning                                       30 May 2018
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