Viessmann Cascade control unit Скачать руководство пользователя страница 34

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Troubleshooting

Faults indicated in the "Faults" menu

(cont.)

Cause:

The room temperature is too low to

ensure frost protection

Result:

The control unit creates a heat

demand

Remedy:

Check system components

Cause:

At least one boiler is in a fault state

(multi-boiler control unit)

Result:

Output possibly too low

Remedy:

Check the boiler (see VitodensĂ200

service instructions)

Cause:

Communication error

Remedy:

Check KM BUS connection

Cause:

Communication error

Remedy:

Check BUS connection

Cause:

Faulty

BUS user

Remedy:

See VitotronicĂ050 service

instructions

Sensor resistance table

Temp-

erature

[

Resis-

tance

[

]

Temp-

erature

[

Resis-

tance

[

]

Temp-

erature

[

Resis-

tance

[

]

Temp-

erature

[

Resis-

tance

[

]

ć15 36

475

15 7

885

45 2

185

739

ć10 27

665

20 6

245

50 1

801

627

ć5 21

166

25 5

000

55 1

493

535

0 16

325

30 4

028

60 1

244

457

5 12

695

35 3

265

65 1

041

393

10 9

995

40 2

663

876

100

339

5862Ă474ĂGB

Frost prot. room

Boiler

error code:

Boiler comm.

Comm. 2-wire BUS

2Ćwire BUS

Содержание Cascade control unit

Страница 1: ...unit Installation operating and service instructions for heating engineers Cascade control unit Weather compensated cascade control for up to four gas fired wall mounted boilers 5862 474 GB 3 2003 Pl...

Страница 2: ...ipment This must only be carried out by an approved contractor Please observe all commissioning work specified for gas installations acc to TRGI or TRF and all local regulations Please observe all com...

Страница 3: ...level selection 10 Initial start up configuration 11 General details general control units 14 System details multi boiler control unit 15 Functions Operating conditions 17 Set room temperature 22 Set...

Страница 4: ...fication H Do not install the control unit near water sprays Control unit installation 1 Drill three holes in accordance with the installation template inside the packaging 2 Insert the upper screw fa...

Страница 5: ...rnal demand M KM BUS interface to Vitodens 200 K 1 to K 4 Connection for boilers 1 to 4 Sensors Install sensors in their appropriate positions and connect in accordance with the diagram External switc...

Страница 6: ...low temperature at Vitotronic 050 Code 9F 8 as delivered condition must be set If the outside temperature for Vitotronic 050 is to be adopted from the cascade control unit set code 97 1 Distribution p...

Страница 7: ...7 Installation and connections Relieving cable strain 1 Fit a strain relief supplied to all cables 2 Fit the cover to the termination chamber 5862 474 GB 2 1...

Страница 8: ...8 Control Operating controls and indicators A Display B Push buttons C System diagram D Function displays 5862 474 GB 4 3 2 1 1 2 3 4 A B D C...

Страница 9: ...or reinstate the previous set value Menu selection and or activation of the set value to change or confirm the set value Function during the configuration process limited function Change the menu sel...

Страница 10: ...splayed When Multi boiler control unit is displayed select General control unit with and confirm with Select Operating level with and confirm with operating level 1 2 or 3 will then be displayed Press...

Страница 11: ...prematurely terminated First switch ON the gas fired wall mounted boilers then the cascade control General control unit Preconditions Operating level 3 must be selected see page 10 Select General con...

Страница 12: ...or Yes must be configured Select Yes if the flow temperature should not fall below an adjustable minimum temperature from a certain outside temperature on Time switch Preconditions Outside sensor Yes...

Страница 13: ...sequence is determined once per week subject to the number of hours run No The start up sequence is permanently set subject to the connection sequence Pump protection control Select Yes if the connec...

Страница 14: ...e end confirm for selecting the month confirm Please note If Summer wintertime auto was configured see p 11 the system will change over during these months back to previous menu Relay test confirm dis...

Страница 15: ...e program standard mode H Party key standard mode H Heating up H Time program red mode H Time program holiday mode H Standby mode H Fault H Automatic summer mode H External demand H Heat demand via Vi...

Страница 16: ...erature H Boiler switch on delay H Party key time H Building type H Diff flow temperature fault H Time flow temperature fault confirm value flashes change value confirm value back to previous menu Tim...

Страница 17: ...ting state certain components are either operational or not and those set values which control the various functions therefore change Set room temperatures can be adjusted in the Set values menu see p...

Страница 18: ...up In the Operating details menu see page 15 you can scan whether the control unit is set to Standard mode or Reduced mode on account of the time switch program Holiday program Preconditions Holiday m...

Страница 19: ...put lets the control unit operate in standard mode for the set period Please note The course of the set standard mode cannot be terminated prematurely The control unit can be changed to standard mode...

Страница 20: ...ide temperature the longer the heat up period Set value multi boiler control unit The control unit activates at least the minimum set period earlier The control unit will be activated in advance by no...

Страница 21: ...age outside temperature C Differential summer mode D Summer mode Set value multi boiler control unit The average outside temperature will be calculated over the set period Fluctuations in outside temp...

Страница 22: ...perating states of standard reduced and holiday mode see page 16 Assumed return temperature without return temperature sensor The current return temperature is determined estimated by the control unit...

Страница 23: ...ing heating curve values H Low end outside temperature flow temperature H Design value outside temperature flow temperature H Heating curve slope subject to the type of heating surfaces A Low end flow...

Страница 24: ...accordance with the size of the heating surfaces Adjust the slope factor of the heating curve in line with the heating surfaces used In the as delivered condition this value is set to 1 33 radiator he...

Страница 25: ...eat demand via external contact The temperatures are then displayed during the next scan actual flow temperature set flow temperature In the Operating details menu see page 15 you can scan whether the...

Страница 26: ...required heat load is lower than the total output of all currently operational boilers H the shutdown delay of a boiler has expired Boilers are operated in modulating mode in accordance with the curre...

Страница 27: ...B Mod to boiler 1 C Lag boiler base load D Mod to lag boiler E Boiler modulation range F Lag boiler base load G Boiler base load 1 FK Lag boiler K 1 Boiler 1 P System output two boiler system tRV Con...

Страница 28: ...be started followed by the boiler with the second lowest number of hours run etc Operating details multi boiler control unit Example of a start up sequence Distribution pump Preconditions Pump Yes mus...

Страница 29: ...ted deviation Frost protection through monitoring the flow temperature The flow temperature will be held at the adjustable minimum value if the flow temperature falls below 5 C Set values multi boiler...

Страница 30: ...are regulated by the control unit Hours run start ups multi boiler control unit Boiler 1 has run for 12 hours and was started eight times The distributor pump has run for 112 hours in all and was star...

Страница 31: ...ast 10 faults 1 most recent fault 10 oldest fault in the memory H Deletion of all faults from memory Multi boiler control unit The system records a fault Operating details The system records a fault F...

Страница 32: ...cally e g severe temperature fluctuations Check control unit settings in the Set value menu path Incorrect temperature recording Check temperature sensors concerned Control panel faults All LED displa...

Страница 33: ...essary match the set time and or temperature difference Reset the fault by pressing twice Cause Outside temperature sensor not incorrectly connected or faulty Result The control unit changes over to a...

Страница 34: ...r Remedy Check KM BUS connection Cause Communication error Remedy Check BUS connection Cause Faulty BUS user 2 Remedy See Vitotronic 050 service instructions Sensor resistance table Temp erature C Res...

Страница 35: ...part as per this parts list Obtain common parts from your local supplier Parts 001 Cascade control unit complete 002 Outside temperature sensor 003 Flow temperature sensor 006 Mains cable 008 Connect...

Страница 36: ...V 50 Hz Connection output 6 VA Safety class II acc to EN 60730 EMV suppression level Immunity acc to EN 50082 2 Emission acc to EN 50081 1 Max ambient temperature H during storage and transport 20 to...

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