Direct Retrofit: Seamlessly replaces the legacy 047518 model

Key Benefits: Direct OEM Compatibility: Ensures seamless integration with Carrier

allowing the thermostat to connect to the PTAC unit in seconds without requiring a line-of-sight signal

Standard protocol dictates energizing the crankcase heater for a minimum of 24 hours before initial compressor startup to ensure all liquid refrigerant has been boiled out of the oil

This HVAC control valve offers a 200 psi close-off pressure and a 600 psi body pressure rating

Hydrolevel 550LSV Low Water Cut-Off 326058-757 Direct Retrofit: Seamlessly replaces theThe Hydrolevel 550LSV (Part Number 45 5510) is a high performance 120Vac Low Water Cut Off designed for commercial hot water boilers and as a secondary safety on steam systems. Built for veteran contractors, this electronic low water cut off features a manual reset to ensure a technician identifies the cause of a low water condition before the burner is re energized. The unit includes a 30 second burner off delay to prevent nuisance jumping during