Install Instructions

74 | Inspection and maintenance
Greenstar6 720 806 992 (2013/09)
15.2 Checklist for inspection and maintenance
▶ Use this form to guide you through the service and maintenance
procedure. Fill out each step according to the findings and work
performed.
Date 
1 Latest fault code from service function 6.A ( page 69).
2 Fresh water inlet filter (Combi boiler ZWB appliances only)
( page 69).
3 Visual inspection of the combustion air pipes and vent pipes.
4 Dynamic gas pressure ( page 67). inches W.C.
(mbar)
5 Gas-air ratio at min./max. nominal output
( page 66).
min. %
max. %
6 Gas and water-side leak test ( page 45).
7 Inspect electrodes ( page 70).
8 Inspect heat exchanger block ( page 71).
9 Check burner ( page 71).
10 Inspect diaphragm in mixer unit ( page 73).
11 Clean condensate trap ( page 73).
12 With the system depressurized, check the
expansion vessel pre-charge pressure vs. the
static head of the heating system.
psi (bar)
13 Check the heating system filling pressure. psi (bar)
14 Inspect electrical wiring for damage.
15 Check settings of the heating control.
16 Check set service functions according to commissioning report
( page 81).
Table 35 Maintenance and inspection checklist