Buderus 11S, Руководство по обслуживанию

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Subject to modifications resulting from technical improvements! Buderus Ltd. • http://www.buderus-domestic.co.uk
2 Servicing manual for wall-mounted condensing gas boiler 600 Series 11S/19S/24S/24C • Issued 02/2006
List of contents
1 Messages – Universal Automatic Burner
(UBA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 UBA status display . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 UBA operating level 1.5 . . . . . . . . . . . . . . . . . . . . . 4
1.3 Service tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Operating messages . . . . . . . . . . . . . . . . . . . . . . . 5
1.5 Fault messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Faults that the UBA does not display . . . 8
3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . 9
3.1 Troubleshooting tasks . . . . . . . . . . . . . . . . . . . . . 47
3.1.1 Unblocking the 600 Series 11S / 19S / 24S / 24C 47
3.1.2 Chimney-sweep mode . . . . . . . . . . . . . . . . . . . . . 47
3.1.3 Removing and refitting the outer casing . . . . . . . 48
3.1.4 Removing and refitting the combustion-
chamber cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3.1.5 Checking the exhaust-gas sensor . . . . . . . . . . . . 49
3.1.6 Replacing the exhaust-gas sensor . . . . . . . . . . . 49
3.1.7 Checking the air intake and outlet openings . . . . 50
3.1.8 Replacing the UBA . . . . . . . . . . . . . . . . . . . . . . . 50
3.1.9 Checking the fan . . . . . . . . . . . . . . . . . . . . . . . . . 51
3.1.10 Replacing the fan . . . . . . . . . . . . . . . . . . . . . . . . . 51
3.1.11 Checking the wiring connections of the UBA . . . . 53
3.1.12 Checking the miniature fuses . . . . . . . . . . . . . . . 53
3.1.13 Checking the connections for the second
solenoid valve, modulating pump and floor
thermostat switching contact . . . . . . . . . . . . . . . . 53
3.1.14 Checking the circulation pump . . . . . . . . . . . . . . 54
3.1.15 Replacing the circulation pump . . . . . . . . . . . . . . 54
3.1.16 Checking the safety sensor . . . . . . . . . . . . . . . . . 55
3.1.17 Replacing the safety sensor . . . . . . . . . . . . . . . . 55
3.1.18 Checking the safety sensor connection lead . . . . 55
3.1.19 Checking the feed sensor . . . . . . . . . . . . . . . . . . 56
3.1.20 Replacing the feed sensor . . . . . . . . . . . . . . . . . . 56
3.1.21 Checking the feed sensor connection lead . . . . . 56
3.1.22 Checking the domestic hot water /
mains water supply . . . . . . . . . . . . . . . . . . . . . . . 57
3.1.23 Changing the domestic hot water /
mains water supply . . . . . . . . . . . . . . . . . . . . . . . 58
3.1.24 Checking the hot surface ingitor . . . . . . . . . . . . . 59
3.1.25 Replacing the hot surface ingitor . . . . . . . . . . . . . 59
3.1.26 Checking the gas-burner control system for
correct activation . . . . . . . . . . . . . . . . . . . . . . . . . 60
3.1.27 Replacing the gas burner fitting . . . . . . . . . . . . . . 60
3.1.28 Checking and adjusting the gas-to-air ratio . . . . . 62
3.1.29 Measuring the ionisation current . . . . . . . . . . . . . 63
3.1.30 Replacing the ionisation electrode . . . . . . . . . . . . 63
3.1.31 Checking the three-way motorised valve for
correct operation . . . . . . . . . . . . . . . . . . . . . . . . . 64
3.1.32 Replacing the motorised valve body control valve 64
3.1.33 Replacing the three-way valve . . . . . . . . . . . . . . 65
3.1.34 Checking the ERC/RC connections to the UBA . 66
3.1.35 Replacing the terminal strip . . . . . . . . . . . . . . . . . 66
3.1.36 Checking connections at the ERC or RC . . . . . . 67
3.1.37 Replacing the room-temperature control device . 67
Preface
Important general instructions for use
This device should only be operated in accordance with its
designated use and the indications given in the servicing
instructions. All maintenance and repair operations must be
carried out by a qualified service technician.
Always operate in conjunction with original accessories, and
use only genuine spare parts. Other combinations of units,
accessories and consumables are only to be used if they
completely fulfil the specifications involved, and if system
performance and safety are not affected in any way.
Note that all the servicing tasks described here must be carried
out by a qualified maintenance firm. Work on gas pipes and
fittings must only be carried out by a CORGI registered
engineer.
Subject to technical modifications
As a result of our policy of constant development, there may be
small differences between illustrations, functional steps and
technical data.
BENCHMARK' Log Book
All Buderus gas boilers now include an Installation, Commis-
sioning and Service record log book. The details of the log
book will be required in the event of any warranty work being
requested.
Please complete the appropriate section at each service visit.
REMEMBER
: Please hand the log book back to the user.
The boiler meets the basic requirements of the
appropriate standards and directives.
Conformity has been substantiated by the
proper documents which - together with the
declaration of conformity - are filed with the
manufacturer.