48
6.
Check the gas connections for tight-
ness.
Danger
Escaping gas leads to a risk of
explosion.
Check all fittings for gas tight-
ness.
7.
Connect the electrical cables/leads to
the corresponding components.
Checking the condensate drain and cleaning the siphon
Note
If condensate escapes at vent aperture
A
or
B
, clean or (if necessary) replace
the following drain line.
E
F
C
D
A
B
1.
Pull off cap
C
downwards.
2.
Undo hose
D
.
3.
Undo union nut
E
and pull siphon
F
downwards.
4.
Clean siphon
F
.
5.
Check that the condensate can drain
freely to the public sewage system.
6.
Fill siphon
F
with water and reas-
semble.
7.
Refit hose
D
.
8.
Push on cap
C
from below.
Checking the diaphragm expansion vessel and system pressure
Note
Carry out this test on a cold system.
1.
Drain the system or close the cap
valve on the diaphragm expansion
vessel and reduce the pressure until
the pressure gauge indicates "0".
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5623 520 GB
Содержание Series B2HA 40
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