11
1002595 ISSUE 5 M172 VARIHEAT
It is essential to control the 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 that by turning the Variheat off will save running costs. This
is not true. Turning the Variheat off turns off all the 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 the difference between the air
and water temperatures. For both economy and comfort, it is good practice
to keep the air temperature in the pool hall 1-2°C above the pool water
temperature while the cover is removed (Occupied Mode). A normal humidity
target in a pool hall is 60%RH. These settings should correspond to the original
design parameters for the project. Unless other conditions were specifically
requested at the time the system was designed, the 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 the settings may result in high power consumption or less
effective control of the environment. If you:
y
Increase the water temperature – evaporation from the swimming pool
water will increase, running costs will increase, and the likelihood of
condensation will increase.
y
Reduce the water temperature – evaporation from the swimming pool
water will reduce, running costs will reduce.
y
Increase the air temperature – evaporation from the swimming pool water
will reduce, running costs usually reduce.
y
Reduce the air temperature – evaporation from the swimming pool water
will increase, running costs will increase, and the likelihood of discomfort
and condensation will increase.
y
Increase the humidity – running costs will reduce, but comfort will worsen,
and the likelihood of condensation will increase.
y
Reduce the humidity – running costs will increase, but may not improve
comfort, nor reduce the likelihood of condensation.
If you do find it necessary to adjust settings, firstly ensure that the control
system sensors are measuring accurately by using a calibrated thermometer
and always maintain the air 1°C higher than water temperature. The settings
for humidity (all models) and air temperature (AA+LPHW models only) can be
changed by touching the centre of the corresponding parameter. A keypad
appears. (See page 13.)
Unless the Variheat has been specifically chosen for the purpose, do
not operate with the air temperature below the water temperature
when the cover is removed.
The only exception is when a floating cover is in place on the pool (Unoccupied
Mode).
HUMIDITY AND TEMPERATURE SETTINGS
POOL HALL
HUMIDITY
(%RH)
POOL HALL AIR
TEMPERATURE
(°C)
Summary of Contents for Variheat AA1200
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