Pool & Air Temperature And Humidity Controls - Calorex VARIHEAT VH3 AA600 Manuel D'installation

3.2.3 POOL & AIR TEMPERATURE AND HUMIDITY CONTROLS
POOL WATER TEMPERATURE & HUMIDITY DIGITAL CONTROLLERS AND AIR DIGITAL
CONTROLLER ON AA MACHINE WITHOUT AIR HEATING
To Program the Set Point. Press down P, SP1 and Set Point value will be displayed alternately.
Press the or key to change the value of SP1. Once the desired value is displayed press P to memorise
the value. The display will revert to the present reading.
NOTE: If anything else shows on the display leave alone for 1 minute until the display returns to normal.
AIR TEMPERATURE DIGITAL CONTROLLER AW AND AA MACHINES WITH AIR HEATING
The digital controller for controlling air temperature can be changed as follows:-
To program the set point, press P button once and release it. SP1 (set point) and set point value
e.g. 28 will be displayed alternately. Press P again AL1 (-4.5) will show. This is the difference between
the set point and AL1 plus a constant 0.5 e.g. 28 - 4.5 + 0.5 = 24ºC (unoccupied) SP1 and AL1 can be
changed in the same way as described for humidity and air.
NOTE: AL1 can only be set -1 to -10 below SP1 value.
If the reading on the digital controller is not the same as the actual pool hall temperature, water
temperature or relative humidity it may be necessary to program an offset into the digital controller. See
technical manual.
FRESH AIR BOX
AUTO Opens dampers and switches on fan when demand for dehumidification (OUT 2) and/or high
temperature OUT 3 (OUT 2 on AA version without time clock). Machine must be in occupied
mode to close Relay 4 and to bring on fan and open damper motor.
MAX Opens dampers and brings on fresh air fan to provide full fresh air at all times, even in
unoccupied mode.
MIN Turns off fresh air fan and closes dampers to minimum position.
NOTE On machines with LPHW, if the optional frost protection stat is fitted, the operation of the
dampers will be inhibited when the ambient temperature is below 6ºC.
NEGATIVE PRESSURE BOX
AUTO Opens dampers and switches on fan when demand for dehumidification (OUT 2) and/or high
temperature OUT 3 (OUT 2 on AA version without time clock). Machine must be in occupied
mode to close Relay 4 and to bring on fan and open damper motor.
MAX Opens dampers to exhaust air from pool hall at all times, even in unoccupied mode.
MIN Turns off fresh air fan and closes dampers to minimum position.
NOTE On machines with LPHW, if the optional frost protection stat is fitted, the operation of the
dampers will be inhibited when the ambient temperature is below 6ºC.
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