11
1002595 ISSUE 5 M172 VARIHEAT
It is essential to control e pool hall conditions 24 hours per day and, once
commissioned, your Variheat should never be turned off if you are to avoid
discomfort and/or expensive building damage due to humidity. It is a common
mistake to believe at by turning e Variheat off will save running costs. This
is not true. Turning e Variheat off turns off all e energy recovery it provides,
and your swimming pool will cost you more to operate overall.
The energy usage and environment in a swimming pool are a delicate balance
and your Variheat has been selected to operate at very specific conditions. The
most important principle in a swimming pool is e difference between e air
and water temperatures. For bo economy and comfort, it is good practice
to keep e air temperature in e pool hall 1-2°C above e pool water
temperature while e cover is removed (Occupied Mode). A normal humidity
target in a pool hall is 60%RH. These settings should correspond to e original
design parameters for e project. Unless oer conditions were specifically
requested at e time e system was designed, e most common conditions
used in indoor pools are:
y Water temperature 28°C-30°C
y Air temperature 29°C-30°C
y Relative Humidity 60%RH
y Changing e settings may result in high power consumption or less
effective control of e environment. If you:
y Increase e water temperature – evaporation from e swimming pool
water will increase, running costs will increase, and e likelihood of
condensation will increase.
y Reduce e water temperature – evaporation from e swimming pool
water will reduce, running costs will reduce.
y Increase e air temperature – evaporation from e swimming pool water
will reduce, running costs usually reduce.
y Reduce e air temperature – evaporation from e swimming pool water
will increase, running costs will increase, and e likelihood of discomfort
and condensation will increase.
y Increase e humidity – running costs will reduce, but comfort will worsen,
and e likelihood of condensation will increase.
y Reduce e humidity – running costs will increase, but may not improve
comfort, nor reduce e likelihood of condensation.
If you do find it necessary to adjust settings, firstly ensure at e control
system sensors are measuring accurately by using a calibrated ermometer
and always maintain e air 1°C higher an water temperature. The settings
for humidity (all models) and air temperature (AA+LPHW models only) can be
changed by touching e centre of e corresponding parameter. A keypad
appears. (See page 13.)
Unless e Variheat has been specifically chosen for e purpose, do
not operate wi e air temperature below e water temperature
when e cover is removed.
The only exception is when a floating cover is in place on e pool (Unoccupied
Mode).
HUMIDITY AND TEMPERATURE SETTINGS
POOL HALL
HUMIDITY
(%RH)
POOL HALL AIR
TEMPERATURE
(°C)
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