7
MINIMUM MAINTENANCE ACCESS
A minimum clearance of 900mm is required on the control panel side and on one other side of the Heatstar unit
and 120mm minimum clearance on the other two sides.
This represents the absolute minimum clearance required for essential maintenance. Ideally, considerably
greater access all around the Heatstar unit is desirable.
POSITIONING THE UNIT
Provide a firm, level plinth, capable of supporting the Heatstar unit.
The Heatstar unit will then simply sit on this plinth.
AIR FLOW THROUGH UNIT
Due consideration must be given to the position of the fresh air intake and cold air exhaust onto the Heatstar
unit.
The large grille next to the control panel is the fresh air intake. The smaller grille by the fan on the opposite side
to the control panel is the cold air discharge.
If the unit is located outside :
Ensure that the large air intake grille has a minimum clearance of 900mm and is not obstructed.
Ensure that the air discharge is not obstructed by fencing or hedging etc. If there is an obstruction, then the
discharged air should be channelled through or around the obstruction.
The discharged air should be discouraged from being re-circulated back into the fresh air intake.
Ensure loose debris such as leaves, grass cuttings etc will not block air inlet grille.
If the unit is located within a plant room or other area :
A suitable louvre or vent must be provided to allow fresh air to freely enter the plant room. Often it is possible to
use a louvred entry door etc.
The louvre should be no smaller than the equivalent area of 700mm x 700mm and the louvre must have a free
area of at least 70% of this size.
If the fresh air is drawn from a pool dome or pool room, fresh air must freely be able to enter the room in
question as described above.
The discharged air
must
be channelled to pass directly back out of the plant room to outside via a suitable hole
without mixing with the fresh air supply to the Heatstar unit.
The area of the hole and duct channel should be no smaller than the air discharge grille on the Heatstar unit.
The exhaust air channel can simply be formed from marine quality plywood etc. and sealed with silicon based
sealant.
To aid connecting the air discharge duct channel onto the Heatstar unit, a special grille riser is available,
providing a spigot over which the duct channel can sleeve.
The length of the duct channel taking the discharged air back outside should be no greater than 1700mm.
Any fuel boiler located within the same room as the Heatstar unit should be fitted with a balanced flue. Otherwise
the combustion of a conventional flue boiler may be affected by the draw of the air fan within the Heatstar unit.
If in any doubt please contact Heatstar.
