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Honeywell satronic DMG 971, Инструкции по установке и обслуживанию, Страница: 5 / 6

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5

CIRCUIT AND TIMING DIAGRAM DMG 971

BLOCK DIAGRAM DMG 971

term. 8

term. 2

term. 9

blue

black

brown

IRD 1020

UVD 971

IRD- OR UVD CONNECTION

DMG 971

HS

Mains switch

GW

Gas proving switch

ST

Limit thermostat

RT

Control thermostat

EV

External reset and lock out button

IS

Ionisation probe
(IRD 1010, UVD 971 see separate
diagram)

Z

Ignition

M

Burner motor

V1

Solenoid valve, 1st-stage

V2

Solenoid valve, 2nd-stage

LW

Air proving switch

SA

External lock out signal

tlw

max. reaction time for air proving switch

tv1

Supervised pre-purge time

tvz

Pre-ignition time

tz

Ignition time total

ts

Safety time

tv2

Delay 2nd-stage

M

Ph

N

HS

ST

GW

RT

EV

IS

Z

V1

V2

SA

LW

1

2

3

4

5

6

7

8

9

C

A

B

SV

tvz tz ts tv2

tw

tv1

tlw

rv1

rs

2

6

5

7

4

3

C

9

B

8

1

A

rz

rv2

Flame

amplifier

Reset

µ

C

Reset and

lock out

Power

supply

monitoring

RZ

RV1

RV2

RS

Fault display

Information

system

EEPROM

Oscillator

µ

C

Watchdog

Mains

monitoring

Power

supply

max. 10A fast

6A low

RLK

Содержание satronic DMG 971

Страница 1: ...nd allows together with a variety of cable entry points utmost flexibility of electrical wiring The DMG 971 is funstionally compatible to MMI 811 and MMI 811 1 Please note Is the DMG 971 to be used to replace the MMI 811 or 811 1 care has to be taken to make sure the air proving switch LW is wired between terminals 4 and 7 and not like on the MMI between 5 and 7 DMG 971 Gas Burner Safety Control F...

Страница 2: ...lse short pause _ long pause 1 2 Lock out diagnoses In case of a failure the LED is permanently illuminated Every 10 seconds the illumination is interrupted by a flash code whichindicatesthecauseoftheerror Thereforethefollowing sequence is performed which is repeated as long as the unit is not reset Sequence illuminated phase dark phase Flash Code dark phase for 10 sec for 0 6 sec for 1 2 sec Erro...

Страница 3: ...t mode If the voltage rises again the controlboxperformsautomaticallyastart upassoonasthe mains voltage is 187 Veff 5 Safety The design and control sequence of the DMG 971 controls will comply with the currently applicable standards and regulations see also TECHNICAL DATA 6 Mounting and electrical wiring Wiring base 3 earth terminals with additional terminal for burner earthing 3 neutral terminals...

Страница 4: ...d lockout appears if the air proving switch LW contact is still in it s closed position e g welded contacts Has the air proving switch LW changed to it s open position in the meantime e g by a run down motor a normal start sequence follows 3 Fault finding The built in information system facilitates the trouble shoot ing in the case of problems occurring during start up or during operation A list o...

Страница 5: ...t stage V2 Solenoid valve 2nd stage LW Air proving switch SA External lock out signal tlw max reaction time for air proving switch tv1 Supervised pre purge time tvz Pre ignition time tz Ignition time total ts Safety time tv2 Delay 2nd stage M Ph N HS ST GW RT EV IS Z V1 V2 SA LW 1 2 3 4 5 6 7 8 9 C A B SV tvz tz ts tv2 tw tv1 tlw rv1 rs 2 6 5 7 4 3 C 9 B 8 1 A rz rv2 Flame amplifier Reset µC Reset...

Страница 6: ...2 Support for IRD Holder M93 for IRD 1020 59093 Support for UVD Holder M74 for UVD 59074 Connection cable Plug type 3 core cable 0 6 m with tag wire ends 7236001 The above ordering information refers to the standard version Special versions are also included in our product range Specifications subject to change without notice VARIATION IRD right HOLDER M 93 FOR IRD left axial 35 3 14 4 5 26 15 1 4...

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