Table of Contents
Advertisement
cases the clearing date and time is logged. It is therefore important that the time and date are set correctly.
Both gas consumption values are accessible from the display or PC tool. The maximum value catered for on the
display is 999,999.9m
8.6.2
Running Hours
As soon as the boiler starts operation, two timers log the total running hours. One indicates the amount of hours
that the boiler is running at a power level equal to or less than 50% of the maximum output. A second timer logs
the amount of hours that the boiler is running at a power level more than 50% of the maximum output. Both values
are accessible from the display or the PC tool.
8.6.3
Ignition Counters
There are four ignition counters. The first counts total ignition attempts. The second counts total failed ignition
attempts ( i.e. it increases with the failure to measure an ionisation current after an ignition cycle). The third and
the fourth are copies of first and second, but can be reset by the User or Service Engineer. All counters are
accessible from the display or the PC tool.
8.6.4
Servicing Notification
When the boiler control determines that a scheduled service is due, the boiler status display will alternate the
standard status screen with the message "SERVICE DUE", every 5 seconds. This notification is activated as soon
as one of the following rules are met after installation.
1)
The service interval time has expired since the last service.
2)
The boiler hours run time has expired since the last service.
3)
The boiler operations counter has elapsed.
4)
Incorrect parameter (influence of EMC, fault of EEPROM).
As soon as servicing is complete, the Engineer should reset the interval counters from the menu. The interval
counters can be set by the relevant parameters.
8.6.5
Error & Blocking
The last 10 errors and the last 10 blocks, are stored in separate tables, together with the date and time which they
occurred. Both tables are accessible from the display or the PC tool. When the table fills up, the oldest error or
block is removed and replaced by the most recent. When an error occurs, it will index two counters. The first will
be cleared at the factory and the second may be cleared by
the Service Engineer.
8.7
DISPLAY SCREEN
The BIC 930 control is designed to operate with a display, which consists of 6 keys and an LCD backlit 2 * 16
character screen. The display must be connected to the control to ensure correct operation of the boiler. If the
display is disconnected from the control, all heat demands are blocked until the connection is restored.
The control can be switched OFF by pushing the On/Off button (top right on the fascia panel). When turned OFF,
the boiler will not respond to a heat demand other than frost protection, if the appropriate parameters have been
set. In this mode, the boiler is not electrically switched OFF, as power is still available to the control to satisfy post
purging of the fan and pump overrun.
When an actual measured temperature is shown on the display, the temperature reading is an integrated value,
so as to dampen any fluctuations.
As soon as the control enters a 'lockout' state, the text will flash and the backlight is turned On.
8.7.1
Status Display Readings
The display will show various run mode screens, depending upon the left / right button operation:-
•
Boiler and Circulation Pump Status Screen
•
Water Temperature Sensor Screen
•
Fan Speed and Flame Ionisation Signal Screen
•
Remote Control Status Input Screen
•
Cascade Status and Cascade Pump Status Screen
A temperature reading is normally shown in °C. By setting the relevant parameter, this can be changed to read °F.
When one of the above screens is showing, pressing the Up / Down key will add a sixth screen showing the
HAMWORTHY HEATING LTD
3
.
28
PUREWELL VariHeat he
500001155/F
Hide quick links:
Advertisement
Table of Contents
