Mitsubishi Electric MRCH2 Control 322838-754 voltage selection is determined by

voltage selection is determined by the harness configuration and the presence or absence of a jumper on the line voltage input

What causes the regulator to "creep" after installation

The unit is furnished with a 1/2" NPT well assembly

Operating on a standard 120Vac supply within a NEMA 1 enclosure

loose wire connections at the breaker lugs

Mitsubishi Electric MRCH2 Control 322838-754 voltage selection is determined byThe Mitsubishi Electric MRCH2 Control is a professional grade RedLINK 3. 0 wireless remote controller designed for seamless integration with M Series, P Series, and City Multi indoor units. Operating on the latest RedLINK 3. 0 protocol, this controller provides enhanced signal reliability and avoids interference with common household frequencies. Unlike its predecessors, the MRCH2 offers dual set point control for automatic changeover between heating