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5 - SECTION B
DIGITAL CONTROL UNIT
HUB RADIATOR PLUS 250 - 400 SOLAR
DIGITAL CONTROL UNIT
5.1 DISPLAY
Information available on the display:
- Primary display (red color): display configurable
from parameter CF36 (PB1, PB2, PB4, Set-point
(parameter value) *, Set-point real *, Hysteresis,
Machine status**);
- Secondary display (yellow color)
display configurable from parameter CF4
(PB1, PB2, PB3, PB4, Set-point (by parameter)*,
Real set-point* Hysteresis, RTC, Machine status**);
* the display shows the chiller set when th unit is switched on
in chiller mode, the heat pump set when the unit is turned on
in heat pump mode, OFF with unit in stand by;
** the display shows OnC when the unit is turned on in chiller
mode, OnH when the unit is switched on in heat pump OFF
mode with unit in stand by.
5.2 ICON DISPLAY
°C -°F
BAR-PSI
Lit when the display
displays a temperature
or pressure
Lit when the lower display
displays the current time, the hours of
operation of loads, etc.
Flashing
on when alarm
On if an automatic Set-point modification
function is active (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)
On if at least one of the 2 water pumps
(evaporator pump or pump
capacitor) is on
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.
5.3 KEY FUNCTION
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FUNCTION
KEY
Pressure and release
in main view:
allows viewing of the chiller
set point (
SetC
label)
or heat pump (
SetH
label).
Pressure and release 2 times in main view:
if the energy saving function, dynamic
set point or for machines without
accumulation the icon is enabled set is
on and the display displays the actual
working set.
Pressure for 3 seconds and release
in main view:
allows modification of the
point set chiller / heat pump.
Pressure and release in programming:
allows access to the change of the selected
parameter;
It allows confirmation of the set value in the
parameter modification phase.
Press and release in the AlrM menu:
allows alarm reset (if resettable) from the
AlrM menu.
