Technibel CHG 11, Installation Instruction

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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:
For terminal unit and boiler overhaul applications, the configuration and parameterisation of each machine are
factory-set for optimum operation.
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 prob:
t01 : water inlet temperature.
t02 : water outlet temperature.
t03 : Air exchanger 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.
Enter the password 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 wiring board's terminal strip, originates 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).
Code Parameters
Settings for terminal units and
boiler overhaul applications
Adjustment
range
HEA
Heating set point 48° C 20 to 50° C
Coo
Cooling set point 12° C 10 to 30° C