83003702.K Operating Instruction
Type KPC 108-L-U/S
page 68
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Temperature regulation is attended by the temperature controller installed in the switch cabinet. It controls the leaving
temperature of the medium and switches the refrigeration compressors and/or the capacity reducing valve (hot gas
solenoid valve) on or off.
The digital temperature gauge shows the actual readings of the initial medium temperature.
The reference value is shown by pressing the SET button.
Settings for the parameter values – see chapter “temperature controller settings” (Main set point ).
Six-stage temperature controller ST710-PWHVM.26
SOFTWARE .26
After switching-on the mains voltage the display shows
“OFF” if standby mode is activated and the actual value if
the controller is not in standby mode.
The LEDs have the following functions:
“°C” = temperature display in °C (upper LED),
“bar” = pressure display in bar (middle LED) ,
“%” = power display in % (lower LED).
Key UP
Pressing this key you can increase the parameter or parameter value or scroll the parameter list.
Key DOWN
Pressing this key you can decrease the parameter or parameter value or scroll the parameter list.
At alarm the buzzer can be switched off with this key.
Key Display
Shortly pressing this key shows the other value (“C”, “bar”) of the actual display for 3 seconds.
Pressing it for more than 5 seconds switches over to power display or back to temperature display.
The LEDs indicate the actual display value.
Key SET
While SET key is pressed, the set-point is indicated.
In addition, the SET key is used for setting parameters.
Key Standby
This key puts the controller into standby mode. Pressing the key a second time, restarts the unit.
The key can be deactivated.
The function of the controller can be programmed by a various list of parameters. The adjustment can be done in three
levels. In order to prevent accidental or unauthorized changes to the preset parameter values, access to the parameter
levels has been made difficult.
