EN
"RE" - HISTORY RESET
By pressing the Ok button for 3 seconds it will be possible to delete all the faults stored in the History Menu: the card will automatically exit the Service Menu, in order to
confi rm the operation.
Press the Ok button for 3 seconds to return to the Service Menu.
9 INDICATIONS DURING OPERATION
The controller indicates the boiler operating mode and its faults through the incorporated display: "St" means Standby (no request in progress), "CH" means that the zone
controller requests activation of heating mode, "dH" means Domestic Hot Water production. The fault codes are:
F70 NTC sensor fault (T1)
F71 NTC sensor fault (T2)
F72 NTC sensor fault (T3)
F73 NTC sensor fault (T4)
F74 Communication with boiler board (BLR) not present
F75 Communication with Remote Control (RT1) not present
F76 Communication with Remote Control (RT2) not present
F77 Communication with Remote Control (RT3) not present
The fault codes are also displayed in the corresponding menu of the Remote Control during normal operation.
9.1 LCD DISPLAY OFF
Make sure the Controller is powered: using a digital multimeter, check the presence of voltage at terminals 5 and 6.
In case of no voltage, check the wiring.
In case of suffi cient voltage (Range 195– 253 Vac), check the fuse FH02 (see fi g. 2).
10 ADDITIONAL FUNCTIONS
10.1 FH MODE
The FH mode is automatically activated the fi rst time the card is powered or after doing the Autoconfi guration procedure. The FH mode must last for a time equal to the
Mixing valve closing Time timer (TSP31): during this time, the circulating pumps (of the heating zones) will be powered; whereas the mixing valves (if foreseen at the time
of Autoconfi guration) must be open for a time equal to one third the Mixing valve closing Time timer (TSP31) and subsequently closed for a time equal to two thirds the
Mixing valve closing Time timer (TSP31).
During FH mode the card must not request heat.
In the fi rst 5 seconds of FH mode, the display will show the card software version. The Service Menu can be accessed in FH mode . The FH mode can be stopped by
pressing the + button once.
10.2 EQUAL SETTINGS FOR EACH ZONE (TSP30)
This parameter will only be considered if, after Autoconfi guration, the zone controller is confi gured to serve two or more heating circuits of the same type. In this case, if
the parameter is equal to 1, all the heating circuits take the settings of heating circuit 1.
10.3 PUMP ACTIVATION WITH CARD IN STANDBY (TSP34)
This parameter will only be considered if, after Autoconfi guration, the zone controller is confi gured in "Communicating" mode. In this case, if the parameter is equal to 1: if
the zone card is in standby and the boiler board is activated in heating, the zone controller must activate all the circulating pumps and force open all the connected mixing
valves (if foreseen at the time of autoconfi guration).
10.4 HEATING DELIVERY PROBE ENABLING (TSP35)
This parameter will only be considered if, after Autoconfi guration, the zone controller is confi gured in "Stand Alone 1 or 2" mode. Set to 0 in case of "Stand Alone 1" confi -
gurations. Set to 1 in case of "Stand Alone 2" confi gurations.
Note: After modifying this parameter, disconnect then reconnect the power to controller FZ4B
10.5 OPERATION WITH BOILER IN FAULT STATUS (TSP36)
This parameter will only be considered if, after Autoconfi guration, the zone controller is confi gured in "Communicating" mode. If the parameter is set to 0, board FX4B
requests are stopped in the event of a boiler board fault. If the parameter is set to 1, board FX4B requests are not stopped in the event of a boiler board fault.
Note: After modifying this parameter, disconnect then reconnect the power to controller FZ4B
10.6 LEGIONELLA PROTECTION (TSP37)
This parameter will only be considered if, after Autoconfi guration, the zone controller is confi gured to serve a hot water tank. When set to 0, the protection is disabled. When
set between 1 and 7, the parameter expresses the interval in days between one activation and the next: 1 means 24 hours, 7 means 168 hours. After this time, a timer is
activated for 15 minutes, during which the user setpoint is set to the maximum value (65°C).
10.7 BOILER SUMMER/WINTER MODE (TSP38)
This parameter will only be considered if, after Autoconfi guration, the zone controller is confi gured in "Communicating" mode. The parameter is normally left at 0. It is set
to 1 only if the board FZ4B is connected to the following controllers: CPD3, CPD4, MF05F or equivalent.
Note: After modifying this parameter, disconnect then reconnect the power to controller FZ4B
Short circuit / Contact open
Short circuit / Contact open
Short circuit / Contact open
Short circuit / Contact open (Only with Sliding Temperature enabled)
(Only for "Communicating" confi gurations)
(Only with Remote Control connected)
(Only with Remote Control connected)
(Only with Remote Control connected)
CONTROLLO ZONE FZ4B
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