Pre-Service Check List - Benchmark RD 532 combi Installation And Servicing

8.1

Pre-Service Check List

1 Call up the last fault stored by the
Bosch Heatronic, Service Function .0,
(see page 36).
2 Check ionisation current, Service
Function 3.3, (see page 36).
3 Perform visual check of air/flue duct.
Visual check of diaphragm for soiling
and splits (see page 38).
4 Check gas supply pressure
(see page 31).
5 Test combustion air/flue gas
(see page 33).
6 Check CO setting for min./
2
max. (gas/air ratio)
(see page 31).
7 Check gas and water systems for
leaks (see page 16).
8 On combi models, check hot water
outlet temperature (see page 36).
9 Check heat exchanger
(see page 36).
10 Check burner (see page 37).
11 Clean condensation trap
(see page 38).
12 Check charge pressure of
expansion vessel matches
static head of heating system.
13 Check central heating system
pressure.
14 Check electrical wiring for damage.
15 Check heating programmer settings.
16 Check appliances that are part of
the heating system
Table 16
6 720 611 451 GB (03.11)
Date
mbar
min. %
max. %
mbar
mbar
mbar
Maintenance
35