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8.3 KEY FUNCTION
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FUNCTION
KEY
___________________________________________________
Press and release in
main view:
allows viewing
of the set point chiller (SetC label)
o heat pump (SetH label).
________________________________________
Press and release 2 times
in main view:
if the energy saving function,
dynamic set point or for machines
without accumulation is enabled, the icon
Vset is turned on and the display
displays the actual working set.
________________________________________
Press for 3 seconds and release
in main view:
allows modification of the set point
chiller / PdC.
________________________________________
Pressure and release
in programming:
allows you to access the edit
of the selected parameter; allows
confirmation of the set value
in parameter modification phase.
________________________________________
Press and release in the AlrM menu:
allows the reset of the alarm
(if resettable) from the ALrM menu.
___________________________________________________
Press and release:
from main view allows
the display of the probe values
configured (temperatures / pressures)
in the upper display and the corresponding
label in the lower display.
___________________________________________________
8 DIGITAL CONTROL UNIT
8.1 DISPLAY
Information available on the display:
- Primary display (red color): display configurable by parameter
CF36 (PB1, PB2, PB4, Set-point
(parameter value)*, Real set point*, Hysteresis, Status
machine**);
- Secondary display (yellow color)
display configurable by parameter CF43 (PB1, PB2,
PB3, PB4, Set-point (from parameter) *, Real set-point*
Hysteresis, RTC, Machine status**);
*the display shows the chiller set when the unit is on
in chiller mode, the HP set when the unit is switched on in
HP mode, OFF with unit in stand by;
** the display shows OnC when the unit is switched on
chiller, OnH when the unit is switched on in HP OFF mode
with unit in stand by. unit in stand by.
8.2 DISPLAY ICONS
___________________________________________________
Lit when the display shows
a temperature or
a pressure
___________________________________________________
Lit when the lower display
displays the current time, the hours of
operation of loads, etc.
___________________________________________________
On flashing in the presence of
alarm
___________________________________________________
On if it is active
an automatic change function
of the Set-point (Dynamic Set-point,
function for machines without
accumulation, Energy Saving);
if the function is enabled
but not active the icon is off
___________________________________________________
Lit during access
to the functions menu
___________________________________________________
On if the resistances are
on (antifreeze heaters, boiler)
___________________________________________________
On flashing during
the interval count between defrosts;
the icon is steady on during the phase
defrost
___________________________________________________
Flashing on if the entrance
digital flow switch is active
(both with pump ON and with pump OFF)
________________________________________________
°C -°F
BAR-PSI
Flashing on if the entrance
digital flow switch is active
(both with pump ON and with pump OFF)
___________________________________________________
On if the fans
are on
___________________________________________________
On if the relative compressor is
switched on; is flashing if the compressor
is in ignition timing
___________________________________________________
On if the exit
open collector is active
___________________________________________________
On if the machine is on e
represents the operating status
Heat or Cool according to logic
set in parameter CF31
___________________________________________________
The HP icon and the LP icon are on
flashing in the event of a High alarm
o Low pressure active.
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Summary of Contents for HR 3.0
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