
Optimizing boiler efficiency requires precise management of air circulation and exhaust, which is exactly what the 383-300-412 purge timer provides for your hydronic system. Designed specifically for the Weil McLain MGB boiler series, this 383-300-412 control ensures that your unit performs mandatory purge sequences consistently and safely during every ignition cycle.
This component operates on a 120-volt circuit and features a manual dial for setting delay intervals between zero and five minutes. By holding the ignition sequence until the combustion chamber is properly cleared of any residual gases, the timer maintains strict adherence to manufacturer performance standards and local building codes.
Key System Performance Baselines:
- Adjustable timing: User-defined delay range from 0 to 5 minutes for application flexibility.
- Electrical compatibility: Standard 120V operation integrates seamlessly with existing boiler control boards.
- System integration: Engineered specifically for compatibility with Weil McLain MGB series boilers.
⚠️ Application Profile: Use this timer exclusively for MGB series boiler purge cycle management. Ensure all electrical power is disconnected before installation to prevent short-circuiting the control board.
| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 383-300-412 |
| Operating Voltage | 120V |
| Delay Range | 0-5 Minutes (Adjustable) |
| Compatibility | Weil McLain MGB Series |
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