Worcester GREENSTAR HE combi Series User Manual

6 720 610 597 GB (03.02)
38
Maintenance
9.1 Pre-Service Check List
Date
1 Call up the last fault stored by the text-
display , (see page 32).
2 Check ionisation current, Service
Function 3.3, (see page 39).
3 Perform visual check of air/flue duct.
Visual check of diaphragm for soiling
and splits (see page 41).
4 Check gas supply pressure
(see page 35).
mbar
5 Test combustion air/flue gas
(see page 36).
6 Check CO
2
setting for min./
max. (gas/air ratio)
(see page 36).
min. %
max. %
7 Check gas and water systems for
leaks (see page 16).
8 Check hot water outlet temperature
(see page 39).
9 Check heat exchanger
(see page 39).
mbar
10 Check burner (see page 40).
11 Clean condensation trap
(see page 41).
12 Check charge pressure of
expansion vessel matches
static head of heating system.
mbar
13 Check central heating system
pressure.
mbar
14 Check electrical wiring for damage.
15 Check heating programmer settings in
the textdisplay.
16 Check appliances that are part of
the heating system.
Table 17

Worcester GREENSTAR HE combi Series Specifications

General

Brand	Worcester
Model	GREENSTAR HE combi Series
Category	Boiler
Language	English