Always verify the unit's rating plate for the correct drill size

it guarantees exact dimensional compatibility

Converting from LP back to natural gas requires a different set of regulator springs and orifices specifically calibrated for the lower pressure demands of natural gas

Can I use this for non-York VFD installations

What are the physical pipe connection sizes

Laars Heating Systems RE2334700 Pressure Switch 321042-401 Always verify the unit's ratingThe Laars RE2334700 Air Pressure Switch is a critical safety component engineered specifically for the Laars NeoTherm boiler series, including models NTH 150 through NTH 850. As a veteran grade HVAC replacement part, this switch monitors the differential pressure within the combustion chamber, ensuring that the inducer fan is moving sufficient air for safe combustion. If the boiler pressure switch detects a blocked vent, intake obstruction, or fan