Figure 7.4.4 Control Panel Modules; Figure 7.4.5 Master Control Panel; Figure 7.4.6 Ignition Sequence - Hamworthy MILBORNE381 Series Design Installation, Commissioning And Operating Instructions

Fig 7.4.4 - Control Panel Modules
5 Ensure that a number appears in the left indication
window of the Master control panel. This number
relates to one of the heating circuits.
Heating circuit indication
window
S1
S3
S2
Fig 7.4.5 - Master Control Panel
The operating sequence for the display is as follows;
No Demand for heat;
Heat Demand for domestic hot water circuit or from
heating circuits 1 and 2;
HAMWORTHY HEATING LTD
Module reset button
Module fault indication
LED, red
Module operating
indication LED, green
S4
S5
S6
MILBORNE
Demand from domestic hot water circuit or both in
operation;
Demand from heating circuit 2;
6. Wait for the green indicator LED to illuminate, to
indicate that the ignition phase of boiler start-up has
commenced.
Slow flashing LED
= Standby
Fast Flashing LED
= Ignition phase
Steady LED
= Flame is present
Note: The ignition sequence
is as follows;
1) 5 Seconds of pre-
purge
2) 4 Seconds of post–
purge
Fig 7.4.6
7. Run the burner to maximum power. To achieve
this press and hold S2 and S4 for 5 seconds.
S2
After 5 seconds the maximum fan speed can be
selected with switch S4. All the fans in the boiler
installation will operate now at the maximum speed
as programmed at parameter 15; maximum fan
speed CH.
The first digit of the display will indicate the fan
speed. H = maximum speed.
The second two digits of the display indicate
temperature, e.g. T1 = 80°C
24
Rd
Gn
+
S4
500001130/J