S&P SFM Percentage Timer Control w/ Furnace Interlock for the TR Series

The S&P SFM Percentage Timer with Furnace Interlock Controller is the primary controller for the S&P TR series Energy Recovery Ventilators when furnace interlock is needed and no push-button controls (the S&P SPBL) are used. It features 10 indicator lights that display the percentage of runtime a connected ERV and residential air system will operate each hour, and meets ASHRAE 62.2 continuous ventilation standards.

Additionally, the controller can set the ERV for continuous operation and shut it off completely.  When the controller is set to off, your furnace/air conditioning blower will run based upon your thermostat or other controls.

Compatible Models

• S&P TR90
• S&P TR130 
• S&P TR200
• S&P TR300
• S&P TRe200
• S&P TRe300
• S&P TRLPe100 and S&P TRLPe100c