Steering for fireplace TECH ST-391 EU zPID with air throttle
Regular price:
DKK4,900.00
The promotion runs until 24 July 2026
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Description
Fireplace Controller ST-391 zPID EU
Temperature regulator ST-391 EU with a throttle valve is designed to control process of combustion in a home heating fireplace. Regulator controls operation of circulation pump, additional pump (HUW or floor), throttle valve.
Controller functions:
- operation of circulating pump
- control of operation of an additional HUW or floor pump
- control of buffer pump or ladder
- operation of throttle valve, contactor for switching gas furnace off or on depending on required water temperature in circuit, including hysteresis
- zPID software
- buffer operation (two sensors)
- possibility of connecting ST-65 GSM or ST-505 Internet module (in new version www.emodul.pl)
Accessories
- exhaust gas sensor
- floor / HUW sensor
- CO sensor
- buffer sensor up and down
- Throttle valve 100mm, 120mm lub 150mm
- color display, touch buttons
Example diagram
Technical data
| Description | Unit | |
| Power supply | V | 230V +/-10% /50Hz |
| Power consumption of controller | W | 4 |
| Ambient temperature | °C | 5÷50 |
| Max. load on pump output | A | 0,5 |
| Max. voltage free output load | A | 1 |
| Temperature setting range | °C | 40÷80 |
| Accuracy of measurement | °C | 1 |
| Sensor temperature strength | °C | -30÷99 |
| Fuse-link | A | 3,15 |
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