York S1 025 35388 002 Reversing Valve 30067439 890 maximizing sensible heat ratios and maximizing sensible heat ratios and operational efficiency Can I use this board for both heating and hot water supply boilers Use a multimeter to check for 24V at the solenoid leads when the thermostat calls for a mode change (usually 'O' or 'B' terminal) Integrated 24V Solenoid: Includes the S1 025 35388 002 coil for immediate installation
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols
product description
Why choose thelockerguy wholesale?
Show More
York S1-025-35388-002 Reversing Valve 30067439-890 maximizing sensible heat ratios and