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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Common Questions & Technical Support Can this valve be used on systems smaller than 5 tons
When the internal plenum temperature reaches the 160°F high-limit threshold
Always verify your model and serial number to ensure correct footprint spacing
For contractors demanding precise flow control in hydronic systems
effectively eliminating issues related to stem binding or intermittent signal response
Resideo L8148E1299 Aquastat Relay THPU32HP7Y Common Questions & Technical SupportThe Resideo L8148E1299 is a technical grade high limit Aquastat relay designed for immersion type hydronic systems. This 120Vac controller effectively combines system safety with operational switching, managing both the burner and circulator motors. Engineered with a vertical mount configuration, it provides a high limit operating range of 180F to 240F with a 15 degree fixed differential. This ensures consistent thermal cycling and reliable system
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