GB
10
5.6.3 - SETPOINT ADJUSTMENT
• Simultaneously press buttons (
1
) and (
2
) for at least 2 seconds, "
SET
" is displayed.
• Press the 2 buttons again, "
Coo
" is displayed. Using button (
1
) or (
2
), display either "
HEA
" or "
Coo
" corresponding to
the heating setpoint ("
HEA
") or cooling setpoint ("
Coo
").
• Simultaneously press the 2 buttons again for 2 seconds. The setpoint value appears. If needed, modify the value with
the buttons.
• Press the 2 buttons simultaneously to validate the setpoint.
• Return to the normal display by simultaneously pressing the 2 buttons for more than 2 seconds.
Reminder: control on the installation return temperature.
Note:
All units are factory configured and parameterized for optimum operation in the terminal unit application.
5.6.4 - DISPLAY OF TEMPERATURES, ALARMS, AND HOUR COUNTERS
Accessible directly via the menu, see diagram 5.6.2.
• Temperatures "
TP
:
Displays the values indicated by each temperature probe:
t01
: water inlet temperature.
t02
: water outlet temperature.
t03
: exchanger air temperature.
t04
: outside air temperature.
• Alarms "
Err
":
Displays the list of all current alarms (scroll through the alarm messages with buttons (
1
) and/or (
2
)).
• Hour counters "
OHr
":
Displays the operating time of the compressor ("
OH1
") and the circulating pump ("
OHP
"). The counter can be reset by a
long press (> 2 seconds) on button (
1
) when the counter value is displayed.
5.6.5 - ACCESS TO THE TECHNICAL PARAMETERS "PAR"
For qualified personnel after entering the password "PSS". Any incorrect adjustment may lead to serious
malfunctions.
• Go to the "
PSS
" section in the menu. Briefly and simultaneously press buttons (
1
) and (
2
). The "
---
" message appears.
Display the password ("
199
") using buttons (
1
) and (
2
) and validate it by simultaneously pressing buttons (
1
) and (
2
). It
is now possible to enter the parameters section "
PAr
".
CAUTION:
After modifying one or more technical parameters, the controller must be turned off then back on again to reset
it with its new parameters.
5.7 - ALARMS
• When an alarm occurs:
- the alarm report is activated,
- the corresponding code flashes on the display unit. See table,
- the unit stops if necessary (see table below).
• Remedy the fault.
IMPORTANT NOTE:
All work must be carried out by qualified, experienced personnel.
• The alarms are normally reset automatically.
•
CAUTION
: the alarms:
- HP,
- LP (low pressure),
- Anti-freeze,
- Water flow rate
have an event counter that shifts to
manual
reset if the alarm occurs several times during the last hour.
• The "refrigerating circuit" alarm is reset manually.
• The alarms are reset by briefly pressing the "
ON/OFF
" button (
1
).
• When the alarm is cleared:
- the alarm report is de-activated,
- the display reverts to normal (not flashing),
- the machine can re-start (if it was stopped).
• Special features of the alarm relay:
- the potential-free change-over contact (2 A - 230 VAC max.), on the terminal strip of the PCB, comes from the relay
located on this board,
- the relay is actuated in the absence of an alarm (contacts: 5/6 closed and 5/7 open),
- in the case of alarm or power supply loss, the relay is released (contacts: 5/6 open and 5/7 closed).
Factory setting
(terminal units)
HEA
Heating set point
4 0
°C
25 to 45°C
Coo
Cooling set point
1 2
°C
9 to 25°C
Parameters
Code
Adjustment range
