Connection diagram (basic diagram)
Temperature and pressure control on a
Burner control and supervision are provided by burner control type LAL... or LFL...
Note | DC 24 V at terminals «G+» and | |||||||||||||||||||||||||||
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| RWF40... |
| Q13 Q14 |
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| Y2 Q D1 GND D2 | ||||||
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| L | N G1+ | M1B9 | M9 XB6 | M6 |
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| Y1 |
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| LAL..., LFL... |
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| int. | ext. | ||||||
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| 4 | 5 | 18 |
| 19 |
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| 9 | 11 10 | 20 |
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| ST |
| BS |
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| S1 |
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| B | M | B | M |
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| 1 0 2 |
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| QAE... | QAC... |
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| M | R |
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| BV1 |
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| BSG... |
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| LK |
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| a | M |
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| ~ |
| MIN. |
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| 0 |
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| GAS | RV | BV1 |
| BV2 |
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| OIL |
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| L |
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| N |
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| 7865a01/1004 |
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| RWF40... |
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| Y2 Q D1 GND D2 | ||||
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| G+ U1- M1 | G- XU6 | M6 | Q13 Q14 |
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| L | N |
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| Y1 |
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| LAL..., LFL... |
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| int. | ext. | |||||
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| 4 | 5 | 18 |
| 19 |
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| 9 | 11 10 | 20 |
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| ST |
| BS |
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| S1 |
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| G | B | M |
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| 1 0 2 |
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| QBE... |
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| 0...10 V |
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| BSG... |
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| LK |
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| SQ... |
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| ~ |
| MIN. |
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| GAS | RV | BV1 |
| BV2 |
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| I |
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| OIL |
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| L |
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| N |
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| 7865a02/0905 |
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Legend | a | Limit switch for air damper position OPEN |
| QAE... | Immersion temperature sensor |
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| BS | Operation selector |
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| QBE... | Pressure sensor |
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| 1 = firing on gas |
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| RV | Gas control damper |
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| (modulating burner control) |
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| S1 | Internal / external setpoint switch (E) |
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| 2 = firing on oil |
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| SQ... | Actuator of burner´s air damper and gas | |||||||||||||||
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| control damper |
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| BV... | Fuel valve |
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| ST | Connections for burner control´s start |
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| BSG... | Remote setpoint adjuster (active when |
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| control loop |
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| «S1» is closed) |
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| v | Auxiliary switch for the release of the |
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| L... | Burner control |
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| 2nd fuel valve depending on the air damper | ||||||||||||||||
| LK | Burner´s air damper |
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| m (MIN) | Auxiliary switch for controlling |
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| z | End switch for the fully CLOSED |
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| position of the air damper |
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| QAC... | Outside sensor for |
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| setpoint shifting |
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8/10
Building Technologies | CC1N7865en |
HVAC Products | 01.09.2005 |
