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9.1.3
Fitting
Replace the sealing ring around the front plate. When
assembling, check the various seals for damage, hardening,
(hair) cracks and/or discolouration. Install a new seal where
necessary. Also check the correct positioning.
If retarders are not fitted, or incorrectly fitted, it may lead to
serious damage.
1.
Place the retarders in the heat exchanger.
2.
Check that between the flange of the shoulder bolt and the front plate,
there is a thin layer of ceramic grease.
If there is no or insufficient grease, it must be applied (see image).
3.
Note: Replace the seal around the front cover. Clean the seal ring
chamber with a soft brush and make sure the new o-ring is pressed in well
all around. Avoid stretching or tearing. Place the front plate on the heat
exchanger and secure it with the special shoulder bolts (Allen bolts). Make
sure that the o-ring remains in place when installing the front plate. Evenly
tighten the shoulder bolts crosswise manually (10 – 12 Nm). For the
sequence of tightening, see image.
Please note: The front plate in the image has 11 shoulder bolts
(EHOB42ABV1H). The front plate of the EHOB12AAV1H and
EHOB18AAV1H has 9 shoulder bolts.
4.
Evenly manually tighten the boiler controller bolts crosswise.
5.
Fit the gas coupling under the gas block.
6.
Fit the connector onto the fan and the ignition unit onto the gas block.
7.
Fit the condense outlet tray by sliding it into the outlet stump of the switcher
(1), with the siphon connection, before the bottom tray. Then turn the
condense outlet tray to the left (2) and push it down into the siphon
connection (3). Make sure that the rear of the condense outlet tray ends up
resting on the cam at the back of the bottom container (A).
8.
Fill the siphon with water and fit it onto the connection under the condense
outlet tray.
9.
Slide the flue gas pipe, while turning it to the left, with its top around the flue
gas adapter in the top lid.. Insert the bottom into the condense outlet tray,
drag the gasket down and tighten the swivel head to the right.
10. Open the gas valve and check the gas couplings under the gas block and on
the assembly bracket for leakage.
11. Check the CH and the water pipes for leakage.
12. Insert the plug into the socket.
13. Switch the unit on with the
14. Check the front lid, the connection of the fan to the front lid and the flue tube
parts for leaks.
15. Check the gas-air regulation (see par. 7.8 ) and check the gas coupling on
the gas block for gas tightness.
16. Assemble the cover and tighten the two screws to the left and the right of the
display, and close the display cover.
17. Check the heating and the hot water provision for correct functioning.
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