HeatStar XF EC, Product Manual, Page: 11 / 55

10
ENERGY RECOVERY ON FRESH AIR DILUTION :
The pool room air temperature will normally be very warm and, particularly during the winter months, the out side
fresh air may be very cold.
Therefore, if you are blowing away warm pool room air to out side and replacing it with cold fresh air, as occurs
when the pool room air is diluted as described above, then you are obviously losing heat and heat costs money!
To reduce the amount of heat lost in this way, the Heatstar incorporates a
’plate air-to-air heat exchanger’.
This is a simple non-mechanical device which consists only of a series of small channels through which air can
pass. Both the warm pool room air and the cold fresh air are passed through adjacent channels simultaneously,
but are never mixed.
The channels through which the warm pool room air is passed are positioned directly adjoining to the similar
channels through which the cold fresh air is passed. As there is only a thin barrier separating the two different air
channels, heat is transferred through the thin barrier from the warm pool room air to the cold fresh air.
FULL RATE FRESH AIR INTRODUCTION MODE - HIGH AIR TEMPERATURE :
If the pool room air becomes excessively warm during the summer months, for example as a result of solar heat
gain through glazing, then the Heatstar automatically increases the amount of pool room air which is blown away
to outside.
A corresponding level of cooler and, importantly to maintain comfortable pool room conditions, dryer fresh air is
then introduced to the pool room through the Heatstar product.
CONTROLS :
The Heatstar product is able to operate completely automatically and incorporates a full control panel for this
purpose.