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SERVICING THE HEAT PUMP AIR CURTAIN
Vacuum Clean the Air Inlet Grilles / Filters
(Weekly, or when the Filter Dirty Indicator shows PERMANENT RED)
With the air curtain switched OFF, a vacuum cleaner with an
extension tube and brush attachment at its end should be used
to clean the face of the air inlet grilles/filters. This is important
to minimise the build-up of dust and lint on the air filters which
will affect the performance of the air curtain. This is a simple
service task that can be carried out by the Cleaner or Janitor
on a weekly basis from floor level without having to access the
air curtain at high level. This should be done weekly as a
regular service task and/or when the Filter Dirty Indicator
shows permanent red. Reset the Filter Dirty Indicator after
cleaning by a quick press of the Reset Button (even if the indicator has not gone red).
Servicing the Air Curtain
(suggest every 3 Months, or if the Filter Dirty Indicator shows FLASHING RED)
Always disconnect and isolate the mains electricity supply both at the local
electrical supply to the Air Curtain and to other Mitsubishi Electric equipment in
the City Multi system before servicing, maintaining or repairing the Air Curtain.
Note: All servicing, maintenance and repairs to the air curtain must be carried out by a
Thermoscreens approved Service Agent. It may be necessary to involve a
Mitsubishi Electric Service Agent if any work is to be carried out on the Mitsubishi
Electric City Multi heat pump refrigeration system and its controls.
Remove the plastic end caps by pulling
off to the side as shown.
Remove each Air Inlet Grille with its air
filter by unfastening the M4 Pozi Head
screw at the bottom corner of the grille.
Use a Pozi No.1 screwdriver to access
the screw via the elongated hole at the
bottom corners of the grille (see picture).
Remove the air filters from the air inlet
grilles by gently prizing them free as
shown. Vacuum clean and refit the filters
into the curved air inlet grilles. The filters
are very durable but may need to be
replaced after a number of service
intervals.
Remove the bottom access panel by
unfastening the panel fixing screws (2 on
PHV1000, 4 on PHV1500 & 2000 units -
see picture) and sliding panel out
forwards. Clean the inside of the panel.
Bottom Access Panel
