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Fault
code

Display

System charac-
teristics

Cause

Measures

F A9

Flame extinguish-
es during stabilis-
ing time

Incorrect parame-
ter memory stick
inserted

Replace and ena-
ble parameter
memory stick

F A9

Flame extinguish-
es during stabilis-
ing time

Combustion char-
acteristics not ide-
al

Adjust the burner

F 04

Burner control unit
lockout

Burner control unit
has been reset
more than 5 times
in the last 15 min

Wait or carry out an
extended reset,
i.e. hold down reset
for approx. 10 s un-
til the fault display
begins to flash,
then immediately
release the reset
button

F 11

None

Burner switches
off; display only in
fault memory

Low voltage de-
tected

Check power sup-
ply

F 12

None

Burner switches
off; display only in
fault memory

Mains failure, volt-
age failure detec-
ted

Check power sup-
ply

F 13

Burner control unit
in fault state

Safety chain is
'live'

Check safety chain
(strapping plug

)

F 16

None

Burner control unit
in fault state

EMC fault

Have your system
tested for EMC in-
terference

F 4b

Parameter memo-
ry stick not found

Parameter set en-
abled, but memo-
ry stick not plug-
ged into burner
control unit. Mem-
ory stick faulty

Plug memory stick
into burner control
unit; replace mem-
ory stick

F 4c

None

Parameter memo-
ry stick matching

Parameters could
not be transferred
from the stick

Replace stick or
burner control unit

All fault codes are saved to the fault memory and the last 10 can be called up.

Diagnosis

Diagnosis

(cont.)

5782 991 GB

Содержание MPA51

Страница 1: ...Operating and service instructions for contractors VIESMANN Gas burner control unit replacement Type MPA51 with MPA5113 Gas burner control unit replacement 5782 991 GB 1 2014 Please keep safe ...

Страница 2: ...working on this system Statutory regulations regarding the prevention of accidents Statutory regulations regarding envi ronmental protection The Code of Practice of relevant trade associations All current safety regulations as defined by DIN EN DVGW TRGI TRF VDE and all locally applicable standards a ÖNORM EN ÖVGW TR Gas ÖVGW TRF and ÖVE c SEV SUVA SVGW SVTI SWKI VKF and EKAS guideline 1942 LPG pa...

Страница 3: ... neg ative pressure If the boiler is operated at the same time this can lead to reverse flow of the flue gas Danger The simultaneous operation of the boiler and appliances that extract air to the outside can result in life threatening poison ing due to reverse flow of the flue gas Fit an interlock circuit or take suit able steps to ensure a sufficient supply of combustion air Working on the system...

Страница 4: ...pare and wearing parts Please note Spare and wearing parts that have not been tested together with the system can compromise its function Installing non author ised components and making non approved modifications or conversions can compromise safety and may invalidate the warranty For replacements use only orig inal spare parts supplied or approved by Viessmann Safety instructions Safety instruct...

Страница 5: ...5 Operating instructions Burner control unit 6 Service instructions Diagnosis 13 Flow diagram 24 Connection diagram 26 Parts list 27 Index Index 5782 991 GB ...

Страница 6: ...ct The display screen comprises three dig its consisting of seven segments each Four keys serve to make adjustments at the different operating levels Operating display In standard mode the status indicator shows the current operating status The same applies after pressing reset follow ing a fault The following displays are scrolled through automatically If a fault occurs see the fault codes from p...

Страница 7: ...heck Fan ramp up Status Service Valve check Status Service Pre purge Status Service Pre ignition Status Service Safety time Flame formation Status Service Flame stabilisation Status Service Operation with flame Burner control unit Burner control unit cont 5782 991 GB Operation ...

Страница 8: ...age 10 Fault display Message code F Fault code display Table on page 13 Fault memory Status 0 to 9 Calling up the last 10 faults Page 12 Information display The information display is activated from the operating display Information regarding current meter readings such as the start up meter and permanent hours run meter can be called up via the information display This mode is automatically termi...

Страница 9: ...tion cable and ionisation electrode Status Service Start counter with reset 1 digit Status Service Start counter with reset 100 digit Status Service Start counter with reset 1000 digit Status Service Hours run meter with reset 1 digit Status Service Hours run meter with reset 100 digit Status Service Hours run meter with reset 1000 digit Burner control unit Burner control unit cont 5782 991 GB Ope...

Страница 10: ...he lower heating output Press b until the display shows d 0 3 Adjust the upper heating output Press a until the display shows d 00 4 Pressing b and S simultaneously returns the burner to modulating mode The burner continues at the original modulation level at which the status d control stop was initi ated Fault display If the burner control unit switches to a fault state the fault display is autom...

Страница 11: ...emory The most recent 10 faults are saved and may be called up The order of scans ranges from the most recent to the ear lier fault codes If no key or the reset but ton is pressed within 20 s the fault mem ory display is terminated automatically Note The burner starts up again after a fault To establish the cause of the fault check the fault memory 1 Calling up the fault Status Service 1 Press the...

Страница 12: ...erating display is shown again 2 Specification of each individual fault Status Service 1 Press a For as long as this key is held down the status number operating phase under which the fault has occurred is displayed under Service Value between 01 and 36 See flow dia gram on page 24 2 Press b For as long as this key is held down additional fault information is dis played under Service Burner contro...

Страница 13: ...n instruc tions burner compo nents F Burner is in a fault state See fault code See fault code steps to take F1 flash ing Burner does not start Parameter memo ry stick not plugged in correctly or faul ty Check parameter memory stick or replace See in stallation instructions burner components F2 flash ing Burner does not start Connected display is invalid Use current display 9 On hold program Lack o...

Страница 14: ...onden sate banked up Remove flue gas back pressure check for banked up condensate re set burner control unit F Ab F Ab Fan not running Fan faulty cables are faulty or bro ken Check cables re place fan if re quired F Ad A Gas pressure switch reports no gas pressure Gas shut off valve closed gas pres sure switch faulty Open gas shut off valve check gas flow pressure clean gas filter if re quired F A...

Страница 15: ... during start up or after post purge Gas train is leak ing Gas is escap ing and burning off Replace the gas train F A7 F A7 No flame signal during safety time ionisation flame monitor reports no flame signal Ionisation elec trode incorrectly adjusted ionisa tion cable not plugged in Adjust ionisation electrode see service instructions for Vitocrossal push plug onto ion isation electrode F A7 F A7 ...

Страница 16: ...ing safety time ionisation flame monitor reports no flame signal I Danger Plug in termi nals on the burner con trol unit are live Check con nections L 1 N and earth con ductor Connections L1 and N inter changed at the power supply ter minal of the con trol unit or burner control unit Check core alloca tions and alter if re quired F A7 F A7 No flame signal during safety time ionisation flame monito...

Страница 17: ... A8 F A8 Flame extinguish es during opera tion Burner gauze as sembly faulty Check burner gauze assembly replace if dam aged F A8 F A8 Flame extinguish es during opera tion Incorrect parame ter memory stick inserted Replace and ena ble parameter memory stick F A8 F A8 Flame extinguish es during opera tion Combustion char acteristics not ide al Adjust burner see Vitocrossal service instructions F A...

Страница 18: ...t memory Low voltage de tected Check power sup ply F 12 None Burner switches off display only in fault memory Mains failure volt age failure detec ted Check power sup ply F 13 F 13 Burner control unit in fault state Safety chain is live Check safety chain strapping plug fJ F 16 None Burner control unit in fault state EMC fault Have your system tested for EMC in terference F 4b F 4b Parameter memo ...

Страница 19: ...place memory stick when burner control unit has been iso lated from power supply F 40 None Burner control unit in fault state Incorrect set de fault value for fan in parameter set Replace memory stick I Danger Plug in termi nals on the burner control unit are live Only replace memory stick when burner control unit has been iso lated from power supply F 41 F 41 Fan speed devia tion Fan faulty cable...

Страница 20: ...te Internal fault of the burner control unit and during test of ionisation input Replace burner control unit F 50 F 50 Burner control unit in fault state Internal fault in servomotor feed back output relay does not respond Replace burner control unit F 53 9 Gas shortage at gas pressure switch check valve tightness Gas valve does not open gas valve leaking Replace gas train After replacing the gas ...

Страница 21: ...nly replace memory stick when burner control unit has been iso lated from power supply F 55 F 55 Parameter memo ry stick fault Memory stick faul ty Replace memory stick I Danger Plug in termi nals on the burner control unit are live Only replace memory stick when burner control unit has been iso lated from power supply 1 All fault codes are saved to the fault memory and the last 10 can be called u...

Страница 22: ...erference replace burner control unit 1d 1d Fault in burner control unit area Processor crash ed Have your system tested for EMC in terference replace burner control unit 03 03 Fault in burner control unit Excessive tem perature 60 C Check ambient temperature Faults without fault display Fault Cause Measures Combustion faults due to pulsation Excessive gas throughput Adjust gas throughput in accor...

Страница 23: ...according to the informa tion in the Vitocrossal service instruc tions CO is formed or burner is very sooty Insufficient or too much air Correct settings Check ventilation in in stallation room Insufficient draught in flue system Check flue system Excessive flue gas temperature Excessive gas throughput Adjust the gas throughput according to the rated boiler heating output see con nection values in...

Страница 24: ...iter Gas pressure limiter min Ignition Parameters Leak detection Gas pressure limiter leak detection Input Output Input Output Output Input Input Input Input Input Output Output Output Output 10 11 12 13 14 16 17 18 19 20 21 23 24 25 32 33 34 1 35 36 0 1 3 4 6 7 8 9 Output Input Output same or steady Input same or steady Flow diagram Flow diagram 5782 991 GB ...

Страница 25: ...ection Gas pressure 0 1 s 13 VPS test time Valve 2 1 to 240 s 14 Pre purge time 0 to 1 h 16 Ignition setting max 2 min 17 Gas detection Gas pressure switch min 0 18 Pre ignition time 0 to 1 min 19 Ignition safety time SZA 0 5 to 9 4 s 20 SZA flame recognition 0 5 s 21 Flame stabilising time 1 to 200 s 23 Changing to control mode max 2 min 24 Control mode 0 25 Changing to controlled shutdown 1 to 3...

Страница 26: ...unction F Air pressure switch G Gas pressure switch H Ignition unit K Solenoid valve stage 2 BV 2 L Solenoid valve stage 1 BV 1 M Servomotor for rotary damper B2 Safety chain jumper F1 MCB fuse F2 MCB fuse F6 High limit safety cut out F7 Temperature controller H1 Hours run meter modulation H2 Fault message H3 Hours run meter modulation S1 ON OFF switch Connection diagram Connection diagram 5782 99...

Страница 27: ...Pos Spare part Part no 1001 Burner control unit 7831294 1002 Display and programming unit for burner control unit 7828881 1003 Cable entry for burner control unit 7828882 1004 Parameter memory stick See following table 1003 1002 1003 1001 1004 Parts list Parts list 5782 991 GB Service ...

Страница 28: ...8 32 7831294 7838507 57 7170779 44 7831294 7838508 62 7170780 60 7831294 7838509 67 7148202 CT3 80 7831294 7838510 F6 7148203 105 7831294 7838511 71 7373258 CT3 170 7831294 7838512 15 7189117 225 7831294 7838513 26 7189118 285 7831294 7838514 18 7311947 CT2 370 7831294 7831433 A3 7311948 460 7831294 7831434 E8 7311949 575 7831294 7831435 FC Viessmann Limited Hortonwood 30 Telford Shropshire TF1 7Y...

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