Figure 10.4.1 View Of Combustion Chamber Entrance; Figure 10.4.2 Cleaning Combustion Chamber; Figure 10.5.1 Condensate Drain Removal; Figure 10.5.2 Condensate Drain Overview - Hamworthy MILBORNE381 Series Design Installation, Commissioning And Operating Instructions

10.4 Cleaning the exchanger
The heat exchanger is made of a corrugated bi-
metallic hose with AISI 316 L stainless steel external
surface and copper internal surface, and does not
need any special maintenance.
Combustion
chamber
entrance
Figure 10.4.1
To clean the heat exchanger, remove the burner and
gasket from its housing at the top of the heat-
exchanger, as shown in figure 10.4.1.
Figure 10.4.2
Clean the heat exchanger by accessing through the
top hole of the combustion chamber and brush it
clean - see figure 10.4.2.
Remove any debris from the combustion chamber
with a vacuum cleaner. Finally, wash with water.
Caution! After cleaning the exchanger, new sealing
gaskets must be used .
Figure 10.5.1
HAMWORTHY HEATING LTD
Combustion
chamber
10.5 Cleaning the condense drain
The condense drain must be cleaned once per year
as follows.
Disconnect the condensate drain device by removing
the locking fork as shown in figure 10.5.1
Slide the device downwards through the hole below
the boiler as shown in figure 10.5.2
U n s c r e w
plastic fitting on
the condensate
drain pipe
shown in figure
10.5.3
Disassemble
condensate drain
trap as shown in
figure 10.5.4
Wash away any
deposited dirt with
water.
Figure 10.5.3
Figure 10.5.4
50
MILBORNE
t h e
as
the
Figure 10.5.2
500001130/J