12
1002595 ISSUE 5 M172 VARIHEAT
VARIHEAT AA SYSTEM OWNER INSTALLATION MANUAL
POOL OCCUPIED SYMBOL
POOL UNOCCUPIED SYMBOL
Whenever a floating pool cover is in use, the cover suppresses evaporation and
heat loss, so it is not necessary to maintain the air temperature higher than the
pool water. Significant running cost reductions can be achieved by reducing
the air temperature. Do not reduce the air temperature without a pool cover in
place.
Normal operation, with the cover removed, is called Occupied Mode. Reduced
air temperature operation, with the cover in place, is called Unoccupied Mode.
It is expected that the pool will be covered during Unoccupied periods, to
conserve energy and minimise evaporation. If Unoccupied Mode is used while
the cover is removed, increased power consumption and loss of ideal conditions
may result. The integral time clock on the control system allows fixed times to
be set for when the cover will be in place. If you have an automatic pool cover,
it may be possible to connect this to the Variheat as described in section 3.6, to
automatically set Occupied and Unoccupied modes when the cover is moved.
The Variheat operates in either Occupied or Unoccupied Mode according to:
y
User time period settings
y
User override button
y
Remote system connected to the interface terminals
In Occupied Mode, all functions operate according to User Settings.
In Unoccupied Mode, the following functions change:
y
Pool hall air temperature setting reduced to the unoccupied temperature
setting (sometimes called night set back). The pool hall will not be cooled
to this temperature, but if heating is required, it will only heat to this lower
temperature setting (AA+LPHW models only).
y
With the optional fresh air module, the fresh air volume is reduced to
minimum, unless the user fresh air setting activates maximum fresh air.
Going away for extended periods
Your Variheat system, once commissioned, should never be turned off
completely. Even a cold pool will allow moisture to evaporate into the
environment and if this is not dealt with expensive building damage may
follow. If you go away for extended periods or wish to take the pool out of
commission, use the following procedure:
Use a good swimming pool cover on the pool to minimise evaporation.
y
Set the water temperature at 10°C
y
Set the air temperature to 12-15°C
y
Leave the humidity setting at 60-65%RH
y
Leave the time clock setting in Unoccupied Mode
These settings will minimise energy usage whilst providing maximum
protection for your building.
OCCUPIED AND UNOCCUPIED
Summary of Contents for Variheat AA1200
Page 2: ......
Page 69: ...69 1002595 ISSUE 5 M172 VARIHEAT...
Page 70: ...70 1002595 ISSUE 5 M172 VARIHEAT...
