Table of Contents
Advertisement
13. DIGITAL CONTROL UNIT
13.1 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 the
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.
13.2 ICON DISPLAY
______________________________________
Lit when the display shows a
temperature or a pressure
On when the lower display displays
the current time, the hours of
load operation, etc.
_____________________________________
Flashing on when alarm
______________________________________
On if active an automatic editing 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
______________________________________
On during menu access
functions
Lit if the resistances are
on (antifreeze heaters, boiler)
Lit flashing during the interval count
between defrosts; the icon is on
steady during the phase of defrosting
Lit flashing if the input digital of the flow
switch is activated (both with pump ON that
with pump OFF) Lit if at least one of the 2
pumps water (evaporator pump or pump
condenser) is on
Lit if the fans are on
°C -°F
On if the relative compressor is on
BAR-PSI
switched on; is flashing if the
compressor it is in ignition timing
____________________________
On if the open collector output is
active
On if the machine is on e
represents the operating status
Heat or Cool depending on the logic
set in parameter CF31
The HP icon and the LP icon are lit.
flashing in case of alarm High or
Low pressure active.
29
13. USER INTERFACE
Advertisement
Table of Contents
