Description
BRAHMA VM42 TW30S TS 3S Electronic single-stage gas burner controller
Product Dimensions:
This device, manufactured by BRAHMA, serves as the main programmed safety controller for atmospheric or forced-draught gas burners found in applications such as boilers, furnaces, and ovens.
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Core Function: It executes the precise sequence of operations for the burner: pre-purge, ignition, fuel valve control, flame supervision, and safe shutdown (lockout) in the event of flame failure or a system fault.
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Intermittent Operation: It is designed for systems that cycle on and off based on demand, rather than running continuously.
⚙️ Product Specifications (产品参数)
The model designation (VM42 TW30S TS 3S) provides crucial information about its operational timings:
| Parameter Category | Parameter Name | Value/Description |
| Power Supply | Rated Voltage | $230 \text{ V AC}$ |
| Frequency | $50/60 \text{ Hz}$ | |
| Timing | Pre-Purge Time (TW) | $30 \text{ s}$ (30 seconds). Time required for ventilation before ignition. |
| Safety Time (TS) | $3 \text{ s}$ (3 seconds). Maximum time allowed for the flame to be established after the ignition sequence starts. | |
| Flame Detection | Sensor Type | Compatible with Ionization Probe (Flame Rod) or UV Sensor (Ultraviolet). |
| Outputs | Controlled Outputs | Ignition Transformer, Main Gas Valve, Safety Shutoff Valve. |
| Protection | Protection Class | Typically $IP40$. |
| Certification | Standards | Certified according to applicable European standards, such as EN 298. |
Key Interpretation: The $\text{TW30S}$ means a $\mathbf{30}$-second air Time of pre-purge (Warm-up), and the $\text{TS 3S}$ means a $\mathbf{3}$-second Time of Safety.
✨ Product Advantages (产品优势)
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High Safety Level: The fixed, short 3-second Safety Time (TS) ensures an extremely rapid shutdown and fuel cutoff if the flame is not detected or is lost, minimizing the risk of gas accumulation and explosion.
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Reliable Control: Provides complete, programmed control over the burner start-up sequence, ensuring all steps (pre-purge, ignition) are executed correctly.
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Versatile Flame Monitoring: Supports both common types of flame sensors (Ionization and UV), allowing flexibility based on burner type and application environment.
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Compliance: Meets stringent European safety and performance standards (e.g., EN 298), making it suitable for international use.
⚠️ Cautions (注意事项)
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Strict Wiring: Must be wired strictly according to the manufacturer’s diagram. Incorrect wiring, especially the grounding for the ionization probe, will result in failure to operate or unsafe lockouts.
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Flame Signal: When using an ionization probe, the minimum required flame current ($\text{nA}$) must be achieved and maintained. Low flame signal will cause nuisance lockouts.
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Model Consistency: If replacing a unit, ensure the new unit has the identical TW and TS timings to maintain the appliance’s original and certified safety cycle.
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Professional Installation: Installation, commissioning, and maintenance should only be performed by qualified technicians familiar with gas and electrical safety regulations.
🎯 Product Applications (产品应用)
The BRAHMA VM42 TW30S TS 3S control box is widely used in commercial and industrial thermal processing equipment requiring automated and safe gas combustion:
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Gas Boilers and Water Heaters: Residential, commercial, and small industrial heating systems.
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Gas Furnaces and Air Heaters: Direct and indirect fired space heaters and air handling units.
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Industrial Ovens and Kilns: Baking, curing, or drying processes where precise temperature control and high safety standards are required.
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Intermittent Fired Appliances: Any appliance where the burner is expected to cycle on and off multiple times during its use.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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