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CWW OPERATING INSTRUCTIONS using Speed Selector Switch and Thermostat
The switches to operate the fan speed and thermostat control are located behind the door in the right hand end cover. Press
the door at the right hand side and swing it outwards to reveal the two knobs.
NOTE: Heating is only possible if a Low Pressure Hot Water Coil has been fitted.
USER MAINTENANCE
Isolate at the mains supply before commencing any maintenance work.
THE UNIT SHOULD ALWAYS BE USED WITH A FILTER
In order to maintain efficiency it is important that the filters behind the air intake grilles are
cleaned regularly. This will normally be every two or three weeks.
The filters should be removed from the bottom of the grille on high level units, or from the top
of the grille on low level units. Carefully slide each filter from behind the air intake grille. Wash
the filter (with tepid water only) and dry before use. Alternatively tap the filter gently to remove
dust.
Marstair Ltd.
Armytage Road, Brighouse,
West Yorkshire. HD6 1QF.
Tel: +44 (0) 1484 405600.
Fax: +44 (0) 1484 405620
Email: sales@marstair.com
Installation Instruction
The upper knob selects temperature, which is automatically
controlled by an internal thermostat that senses return room air.
Lower room temperatures can be maintained by turning the knob
clockwise, further into the blue shaded area. (Minimum is
approximately 19°C room temperature).
Similarly, higher room temperatures can be maintained by turning
the knob anticlockwise, further into the red shaded area.
The lower knob selects the fan speed required, or the Off position.
Knob Position
Upper
Lower
0
Any
As
2
Set
3
As
Set
4
As
Set
96908015-03
Page 4 of 4.
Effect
Unit Switched Off
Minimum fan speed with auto
control
for
normal
room
temperature and lowest sound
level
Medium fan speed with auto
control
Maximum fan speed giving
rapid
change
of
room
temperature
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