Technical data

185
Pro-Dialog
Pro-Dialog+ screen interface
• Pro-Dialog+ combines intelligence with operating
simplicity. The control constantly monitors all machine
parameters and precisely manages the operation of
compressors, expansion devices, fans and of the water
heat exchanger water pump for optimum energy
eciency.
Energy management
• Seven-day internal time schedule clock: permits unit
on/o control and operation at a second set point.
• Set point reset based on the outside air temperature
or the return water temperature or on the water heat
exchanger delta T.
• Master/slave control of two units operating in parallel
with operating time equalisation and automatic change-
over in case of a unit fault (accessory).
• Change-over based on the outside air temperature.
Integrated features
• Night mode: capacity and fan speed limitation for
reduced noise level.
• With hydronic module: water pressure display and
water flow rate calculation.
Ease-of-use
• The new backlighted LCD interface includes a manual
control potentiometer to ensure legibility under any
lighting conditions.
• The information is displayed clearly in English, French,
German, Italian and Spanish (for other languages
please consult Carrier).
• The Pro-Dialog+ navigation uses intuitive tree-
structure menus, similar to the Internet navigators.
They are user-friendly and permit quick access to
the principal opera-ting parameters: number of
compressors operating, suction/discharge pressure,
compressor operating hours, set point, air temperature,
entering/leaving water temperature.
Pro-Dialog+ interface