Worcester GREENSTAR HE combi Series User Manual

6 720 610 597 GB (03.02)
40
Maintenance
B Loosen any deposits in the heat exchanger from top
to bottom using the cleaning blade. Refer to fig. 47.
Fig. 47
B Clean the heat exchanger from top to bottom using
the brush. Refer to fig. 48.
Fig. 48
B Flush the heat exchanger from the top. Refer to
fig. 49.
B Clean out the condensate collector and trap connec-
tion (with other end of brush).
Fig. 49
B Refit the clean-out cover using a new seal and
tighten screws to torque of approx. 5 Nm.
Burner
B Check that the gas cock is turned off and the master
switch is in the OFF position.
B Remove the clips (1) and unscrew the two bolts (2).
Refer to fig. 50.
B Unscrew and remove the two hexagon screws secur-
ing the fan (3).
B Slacken fully the rear securing bolt (4).
B Remove the burner coverplate.
Fig. 50
B Remove the burner skin and clean components. Do
not use a wire brush. Refer to fig. 51.
Fig. 51
B Re-assemble burner in reverse order using a new
seal.
B Adjust gas/air ratio (see page 35). Refer to
section 8.2.
6 720 610 332-73.1R
6 720 610 332-74.1R
6 720 610 332-75.2R
1.
2.
4.
7 181 465 330-04.1R
3.
7 181 465 330-08.1
R

Worcester GREENSTAR HE combi Series Specifications

General

Brand	Worcester
Model	GREENSTAR HE combi Series
Category	Boiler
Language	English