Belimo K-LM16 Clamp Proper orifice sizing is critical

Proper orifice sizing is critical for achieving optimal combustion efficiency and preventing hazardous carbon monoxide buildup or burner soot

If your heater is "short cycling" (turning off before reaching the thermostat setpoint) or if the blower runs continuously while the heating element stays off

While the HUS1207 is a standard Trane OEM part

Common indicators include the furnace blower running constantly without heat

Belimo K-LM16 Clamp Proper orifice sizing is criticalThe Belimo K LM16 Clamp is a specialized mechanical accessory engineered for precise air flow control in commercial HVACR systems. Specifically designed for non spring return actuators within the LMB, NMB, and AMB series, this 5 8 inch standard clamp provides a rigid, slip free connection to damper shafts. As a veteran technician, you know that actuator shaft compatibility is non negotiable for maintaining BAS system integration and ensuring