the gas type is typically determined by the orifice in the gas train

and HK38EA015

Condensate management prevents pressure switch faults and water overflow in the blower compartment

it is professional best practice to inspect the high-temp silicone seal or fiberglass gasket upon removal and replace if the seal is compromised

it is professional practice to have high-temperature silicone or a matching OEM gasket ready for a gastight seal

Mitsubishi Electric RO1E31355 Drain Pump Assembly 318973-401 the gas type is typicallyFor service technicians addressing condensate management issues in Mitsubishi Electric M Series or Mr. Slim systems, the Mitsubishi Electric RO1E31355 Drain Pump Assembly is the current OEM replacement part for ensuring reliable moisture removal. This high performance centrifugal drain pump represents the latest engineering standard, serving as the direct substitute for the legacy R01E21355 and R01E19355 components. Built for the demanding duty cycles