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10) Unscrew 2 screws 4 (see scheme.14) of manifold's fastening to the burner front bracket;
11) By means of a turnkey 30 unscrew a nut 5 of the fastening of manifold to the gas pipe and put a manifold off;
Scheme14. Manifold dismantling
12) Unscrew four self-threading screws 3 (see scheme.15) of the fastening of burner to the back wall of the boiler
(2 from each side) and put a burner off.
Assembly is performed in the reverse order.
Heat exchanger dismantling
Do dismount a heat exchanger it is necessary:
1) Switch the boiler off (see p.
2) Block the boiler's inlet stop valves on pipes of heating
systems, drain the water out of the boiler (see p.
page21) (if there are not stop valves, drain the water out of
the whole heating system);
3) Put a burner block off (see section
4) disconnect cables from the thermo relay 4 (see scheme.15);
5) By means of the turnkey 30 to unscrew 2 nuts 1 of pipes
fastening to the heat exchanger;
6) Unscrew two self-threading screws 2 from each side of
heat exchanger's fastening to the back sideс ;
7) Unscrew seven self-threading screws 1 (see scheme.16) of
the exhaust flue bar's fastening 2 and put a bar off;
8) Remove heat exchanger by pulling it up.
Assembly is performed in the reverse order.
17.2 Pump dismantling
To dismount a pump it is necessary:
1) switch the boiler off( see section
2) block inlet and output stop valve in the boiler, drain the water out of the boiler (see section
there are not stop valves, drain the water out of the whole heating system);
3) put a casing and cap off from the boiler (see p.
4) by means of the turnkey 30 to unscrew two nuts 1 (see scheme.15) and put the pipes aside;
10.4
, page.21);
17.1
, page36);
10.4
, page 21);
17.1
, page 36);
Scheme15. Burner dismantling
10.5
,
Scheme16. Heat exchanger dismantling
User's manual
10.5
, page21) (if
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