MAMAC Systems HU-225-3-MA Humidity Transducer 321894-708 or a "limit circuit open"

or a "limit circuit open" error code on the integrated ignition control

the internal relay or circuitry has likely failed

ensuring the power exhauster has established sufficient draft before the gas valve is energized

What is the maximum working pressure for the Danfoss 067N3231

it is often listed under Marathon Electric 5K49PN4074AX and replaces common legacy parts like 51-42369-01 and 51-21913-02

MAMAC Systems HU-225-3-MA Humidity Transducer 321894-708 or a "limit circuit open"The MAMAC Systems HU 225 3 MA is a professional grade wall mounted humidity transducer designed for integration into HVAC and building automation systems (BAS). This unit features a high performance thermoset polymer capacitive sensor, providing 3% accuracy across the full 0100% RH range. Engineered for field reliability, the HU 225 3 MA utilizes a 4 20mA 2 wire output, making it compatible with most standard controllers and data loggers. The device