Englander CU-VS - Vacuum Shut-Down Switch - Air Pressure Vacuum Switch

Our Englander CU-VS Vacuum Shut-Down Switch is a High Quality Vacuum Switch used in Englander pellet stoves & inserts.

The Air Pressure Vacuum Switch acts as a safety mechanism to ensure proper temperature & airflow within the combustion and venting chamber.

The CU-VS is sometimes referred to as the “Low Draft Pressure Switch” or “Second Vacuum Switch”. (See Control Board diagram for Connections & System Configuration).

Englander: (Pellet Stoves manufactured in 2006 and Later): use (1) PU-VS switch and (1) CU-VS switch. (Pellet Stoves manufactured Before 2006): use (2) PU-VS switches.

In Englander pellet stoves, the "Door Ajar Switch" is actually a vacuum / pressure switch (Vacuum Shut-Down Switch) (Example Part# CU-VS); which monitors the negative air pressure within the stove's firebox.

This CU-VS Englander Vacuum Shut-Down Switch is compatible with these Pellet Stove Brands

• (CU-VS) - Englander
• (CU-VS) - US Stove - Tri-Star

(NOTICE): This CU-VS Englander Vacuum Shut-Down Switch is compatible with these Englander models (Manufactured In 2006 and AFTER).

• Englander - 10-CDV - CU-VS
• Englander - 25-PDV - CU-VS
• Englander - 25-PI - CU-VS
• Englander - 25-PUF - CU-VS
• Englander - 49-SHC22 - CU-VS
• Englander - 49-TRC22 - CU-VS
• Englander - 55-SHP20 - CU-VS
• Englander - 55-TRP20 - CU-VS
• Englander - 55-SHP240 - CU-VS
• Englander - 55-TRP240 - CU-VS

Included with CU-VS Vacuum Draft Switch (Door Ajar Switch)

• CU-VS Air Pressure Vacuum Switch for Englander Pellet Stoves
• 1 Year Comprehensive Warranty

A pellet stove Vacuum Switch, also known as an (Air Pressure switch or Draft Switch) or (Door Ajar Switch) works by registering the pressure difference in the heat creation system, through a hose connected to the combustion chamber and/or exhaust system.
The vacuum switch is a safety device that detects negative pressure created by the exhaust fan, as it pulls air through the stove’s venting chamber.
A faulty vacuum switch may cause the auger to stop feeding pellets into the combustion chamber, causing the stove to shut down. A blocked hose, dirty stove or clogged vent can also trigger the Air Pressure Vacuum Switch to halt the heat creation process.