Siemens compact universal controllers Uživatelský manuál stáhnout pdf (Strana 8)

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Building Technologies CC1N7865en

HVAC Products 01.09.2005

Connection diagram (basic diagram)

Temperature and pressure control on a dual-fuel burner.

Burner control and supervision are provided by burner control type LAL... or LFL...

DC 24 V at terminals «G+» and «G-» is used for powering the QBE... pressure sensor!

QAE...

RWF40...

G1+ M1B9

XB6 M6

Q14

MB M

QAC...

BSG...

LAL..., LFL...

GAS

BV1

BV2

11 10

MIN.

SQ...

OIL

7865a01/1004

GND

int. ext.

Q13

QBE...

RWF40...

G+ M1 XU6 M6

Q14

0...10 V

BSG...

LAL..., LFL...

GAS

BV1

BV2

11 10

MIN.

SQ...

OIL

7865a02/0905

U1-

G-

GND

int. ext.

Q13

a Limit switch for air damper position OPEN QAE... Immersion temperature sensor

BS Operation selector QBE... Pressure sensor

1 = firing on gas RV Gas control damper

(modulating burner control) S1 Internal / external setpoint switch (E)

2 = firing on oil SQ... Actuator of burner´s air damper and gas

(2-stage burner control) control damper

BV... Fuel valve ST Connections for burner control´s start

BSG... Remote setpoint adjuster (active when control loop

«S1» is closed) v Auxiliary switch for the release of the

L... Burner control 2

fuel valve depending on the air damper

LK Burner´s air damper position

m (MIN) Auxiliary switch for controlling low-fire z End switch for the fully CLOSED

operation position of the air damper

QAC... Outside sensor for weather-dependent

setpoint shifting

Note

Legend

1 2 3 4 5 6 7 8 9 10

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