Mitsubishi Electric PAC-MKA33BC Branch Box 321702-401 When you're out on a

When you're out on a service call and a heat pump isn't switching between heating and cooling cycles

leaving more room for wiring and other controls

Designed as a direct 491226 replacement

you should reference the EA-157-S (354106) to ensure proper switching levels

Mitsubishi Electric PAC-MKA33BC Branch Box 321702-401 When you're out on aThe Mitsubishi Electric PAC MKA33BC 3 Port Branch Box is an OEM refrigerant distribution component designed for compatible Mitsubishi Electric MXZ and SMART MULTI heat pump systems. It connects one compatible outdoor unit to as many as three indoor units, allowing independent zone control through a properly configured multi zone installation. This Mitsubishi branch box routes refrigerant between the outdoor unit and connected indoor units while