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4.6.8 Air Conditioning Condensate from the indoor unit shall be
run to a suitable drain position, in concealed
‘Comfort cooling’ will normally be provided pipework. Refrigeration pipework and wiring
in the form of a split system ceiling mounted shall be neatly clipped to the structure and fixed
cassette unit to provide both a cooling and to cable tray as appropriate. Insulation shall be
heating facility. The equipment shall be supplied a cellular foam product using CFC-free blowing
by a recognized reputable manufacturer and agents, such as by Armaflex. .
the HVAC contractor shall be responsible for
selecting suitable and appropriate equipment Refrigeration medium shall be R407C or other
for the purpose. approved and suitable gas.
The unit shall be sized with regards to the size As an alternative to a split cassette system, an
of the store and the operating conditions to be appropriately designed ducted system may be
found therein. installed if the franchisee wishes.
The system shall generally comprise an indoor
cassette unit, outdoor wall/floor mounted
condensing unit and all inter-connecting
refrigerant pipework, insulation and associated
power and control wiring from an isolator left by
the electrical subcontractor.
The indoor unit shall be controlled by a wall
mounted hard wired matching controller.
The face plate of a ceiling mounted indoor unit
in the Bake & Serve or Customer area must be
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.
The main electrical contractor shall run a
30amp single phase supply to the position of the
outdoor unit, terminating in a suitable outdoor
weathered, lockable isolator.
4.6.8 Air Conditioning 3 February 2016

