Salus NPC1B Circulation Pump Controller | Heating & DHW
Description
Salus NPC1B Electronic Controller for Heating or Domestic Hot Water (DHW) Pumps
The Salus NPC1B is a new-generation electronic controller designed for efficient management of recirculation pumps in central heating systems or for supplying domestic hot water (DHW) cylinders. Compact, easy to install, and equipped with a clear digital display, this unit optimizes energy consumption and extends the operational lifespan of your heating equipment.
Operating Modes & Versatility
The controller can operate in one of two selectable modes depending on your installation requirements:
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Central Heating Mode: Controls the recirculation pump based on boiler temperature, starting the pump when the preset temperature threshold is reached and stopping it when the boiler cools down (fixed 2°C hysteresis).
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Domestic Hot Water (DHW) Mode: Activates the pump supplying the storage cylinder whenever water heating is required and shuts it off automatically once the target temperature is achieved.
Advanced Safety & Protection Features
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Anti-Stop Function: Periodically engages the pump for brief cycles during off-season months, preventing rotor seizing and limescale buildup.
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Anti-Freeze Protection: Automatically activates the pump if the sensor detects fluid temperatures below 5°C to protect pipework from freezing.
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Overheat Acoustic Alarm: Emits an audible warning signal if the heating medium temperature exceeds 90°C, helping protect system components from thermal damage.
Technical Specifications
| Parameter | Specification |
| Power Supply | 230V AC / 50Hz |
| Power Consumption | 2 W |
| Max Output Load | 6 A |
| Temperature Control Range | 5°C – 80°C |
| Temperature Measurement Range | 0°C – 99°C |
| Hysteresis | Fixed 2°C |
| Sensor Cable Length | 1.2 m |
| Display | Clear LED display |
Core Benefits
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Wide Application Range: Ideal for solid fuel boilers without built-in electronic pump management.
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Energy Savings: Prevents unnecessary pump operation when the heat source is cold.
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Intuitive Interface: Simplified digital menu with clear status indicators.
