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CONDENSATION CONTROL SYSTEM DESCRIPTION
Fan low threshold output
This is the percentage of current which enters the fan control when the latter is rotating at min. speed.
Fan high threshold output
This is the percentage of current which enters the fan control when the latter is rotating at max. speed.
Cooling fan set point cut-off
If the temperature drops below this value even with the control, the fan will stop to prevent it from dropping
excessively, starting when it drops below this value with a small tolerance range.
CENTRIFUGAL FANS (HYDRON FC and HYDRON BC units)
In this case, condensation control all or nothing, stopping and starting the fans. The parameters are as follows:
Min. temperature fan speed
If the fan is operating and the exchanger temperature is below this limit the fan will stop.
Max. temperature fan speed
If the fan has stopped and the exchanger temperature is above this limit the fan will start up.
REVERSE MODE EVAPORATION CONTROL (HYDRON B and HYDRON BC units).
For the heat pump units, during the heating mode, the unit performs a similar function with the sole aim of avoiding
high pressure, caused when the outside temperature is excessively high. The fan speed varies in accordance with
the evaporation temperature which is the temperature detected in the outside exchanger, producing reverse control
at a higher temperature and a lower speed.
ALARM AND LOW WATER TEMPERATURE DEVICE DESCRIPTION
This unit contains safety devices to prevent the water temperature from falling too that it may cause damage to
the system.
The parameters are as follows:
Low temperature alarm set point
Low temperature tolerance range alarm.
This is the set point which restricts the supply water temperature so that if the temperature of the supply water is
below this value, the unit shuts down setting off an alarm. This alarm is manual which means that in order for the
unit to restart the ON/OFF Reset key on the keypad has to be pressed when the water temperature has exceeded
the low temperature alarm set point plus the low temperature tolerance range. These parameters are factory set
to 4°C for the low temperature alarm and 7°C for the tolerance range.
Low temperature protection set point
Low temperature protection tolerance range
The low temperature protection system operates by heating the exchanger with water and thus preventing it from
freezing up. This device acts in such a way that if the water temperature in the exchanger is less than the parameter
value the protection system starts.
WATER TEMPERATURE INDICATOR
This gives the temperature in °C and °F. It is factory set to °C.
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