SKU:301.1001.0000
Enervex PDS-1, Proven Draft Switch
Enervex PDS-1, Proven Draft Switch
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The Proven Draft Switch (PDS) is a fixed set-point differential pressure switch that integrates seamlessly with ENERVEX Mechanical Draft Systems to safely shut down heating appliances during a fan failure.
Used with gas- or oil-fired appliances, the PDS pressure switch can be interlocked with the gas supply valve or safety or control circuit of your appliance. The differential pressure acts via diaphragm against the force of setting spring on the microswitch.
Common Companion Product
- Chimney Fan
Features
- Reliable pressure monitoring
- Suitable for air, flue & exhaust gases
- Operates without any auxiliary power
Specification
Diaphragm Material | NBR (Silicone) |
Max Load | 3 Amps @ 120 VAC |
Range of Operation | 0.05 50 0.5 inWC (13 to 135 Pa) |
Temperature Limits | -40°F to +190°F (-40°C to +88°C) |
Max Pressure | 3 PSI (207 mBar) |
Wiring Connection | 1/4" Solderless Quick Connect Terminals |
Pressure Connections | 2 plastic tubes, 1/4" (6 mm) outside diameter |
Weight | 9.6 oz (0.275 kg) |
Insulation Class | NEMA 1 (IP 20) |
Warranty | 2-Year Factory Warranty |
Listing Certification | UL Standard |

What our customers are saying...
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Researched and ordered my fireplace from US FIreplace Store. Pricing was a fair value however, the customer service was EXCELLENT! I had an issue with the direct vent venting. I called US Fireplace and the correct items were sent out the next day AND Janessa stayed on top of my return authorization and sent me the permissions and documents I needed to return the incorrect item and no cost to me, including return shipping. Overall, I am a very satisfied customer and my fireplace looks and operates flawlessly. I am glad that I selected US FIreplace to source my direct vent fireplace. Thank you for the great service.
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Monteagle, TN
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Fort Mill, SC
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Denvers, MA
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