DKW 972 Mod 5 240v Control Box
Technical Information
Operating Voltage | 220 / 240 V (-15... +10%) 50 Hz (±5%) |
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Fuse Rating | 10 A fast, 6 A slow |
Power Consumption | ca. 12 VA |
Max. Load per Output | |
- term. 3 ignition trafo | 1.5 A, cos ϕ 0.2 |
- term. 4 motor | 2.0 A, cos ϕ 0.4 |
- term. 5 solenoid valves | 1.0 A, cos ϕ 0.4 |
- term. 6 solenoid valves | 1.0 A, cos ϕ 1.0 |
- term. 7 alarm indicator | 0,5 A, cos ϕ 0.4 |
Total load | 5.0 A, cos ϕ 0.4 max. 16 A during 0,5 sec |
Reset time from lock out | None |
DKW 972 Mod 5 240v Control Box
Oil Burner Safety Control
2 Stage Operation without Terminals for Oil Preheater
For oil burners on Direct Air Heaters and for burners above 30 kg/h throughput for intermittent operation, with or without oil preheater, 1- or 2-stage, recycling and post-purge after loss of flame.
The DKW 972 oil burner safety control boxes are suitable for oil burners with or without preheater with throughputs exceeding 30 kg/h. They are approved and certified according to the applicable European standards and regulations.
The microprocessor- based programming sequence ensures extremely stable timings independent of voltage variations, ambient temperature and/or switch-on cycles. The built-in information system not only provides a continuous monitoring of the actual state of the box (very helpful especially for monitoring the start-up phase) but also informs about the cause of a possible lock out. The lock out cause is stored in such a way that it can be retrieved even after a power failure.
The control box is designed for maximum safety in case of fluctuations in the voltage supply. If the mains voltage drops below the permitted level, operation is interrupted and the control box automatically prevents the start sequence from being repeated. In this way, the safety of the system is not put at risk by a drop in the mains voltage. This low-voltage protection works not only during start-up but also permanently during operation.
DKW 972 Mod 5 | Timing (Sec) | |
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Max. Warm Up Time Oil Pre-Heater | ta | 400 |
Pre-purge and Pre-Ignition Time | tv1 | 20 |
Stray Light and Monitoring | tf | 5 |
Safety Time | ts | 5 |
Post Ignition Time after V1 | tn | 7 |
Delay time to V2 | tv2 | 20 |
Datasheets |
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