What should I do if the pilot won't stay lit

the 023Z5008 provides critical protection for the thermal expansion valve (TXV) and compressor by filtering out particulate matter down to 25 microns

This high-efficiency burner is the direct replacement for 301210

and AMH8 series

Armstrong International C3510-3 Vent THPU32HP7Y What should I do ifThe Armstrong International C3510 3, also identified as the Model 11AV 3 4 178, is a high performance stainless steel air and gas vent designed for reliable fluid management in demanding HVACR and industrial environments. Featuring a 3 4" NPT inlet and a 1 2" NPT outlet, this free floating lever vent provides positive venting of air and non condensable gases under pressure. Its all stainless steel construction ensures superior corrosion resistance,