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a "mushy" feel when rotating the dial
it maintains consistent heat levels by adjusting gas flow rather than simple cycling
this Source 1 technical kit is designed for compatibility with common TM8
the plate alignment has likely failed
this module is the designated replacement to resolve the lockout
Watts 0856738 Valve 30067439-890 a "mushy" feel when rotatingThe Watts 0856738 (Model CSM 61 M1 T 3 4) is a high precision 3 4" NPT flow measurement valve engineered for critical hydronic balancing in HVAC systems. Built with a rugged bronze body, this manual balancing valve features a bi directional, positive shutoff ball design and a blowout proof stem to maintain system integrity under operational stress. Rated for 300 psi (21 bar) at 250F, it is specifically optimized for low to medium flow rates in fan
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