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The 4-foot bulb extension with adjustable metering allows for fine-tuning based on actual heat load
reducing steam waste and improving heat transfer across the system
The Watts 0009128
Amber for flame
Carrier HH18HA122 Limit Switch Els PW 17895 The 4-foot bulb extension withThe Carrier HH18HA122 Limit Switch acts as a critical safety component for residential and light commercial HVAC systems, specifically designed to monitor internal heat exchanger temperatures. This automatic reset limit switch features a fixed set point of 117 120F, ensuring the burner circuit or blower operation is interrupted if thermal thresholds are exceeded. For technicians performing furnace repair or preventive maintenance, this OEM component
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