Mitsubishi Electric PAC‑IF013B‑E Air Handling Unit (AHU) Controller for Mr Slim Systems
The PAC‑IF013B‑E is Mitsubishi Electric’s dedicated Air Handling Unit Controller, designed to let a third‑party AHU use Mr Slim outdoor units as its heating and cooling source. It works with both R32 and R410A systems.
According to Mitsubishi Electric’s official product page, the module can interface up to six Mr Slim outdoor units with a single AHU, providing a wide range of capacity options.

Key Features
•     Interfaces Mr Slim outdoor units to AHUs — simplifies system design and installation
•     Supports up to 6 outdoor units on one AHU for scalable capacity
•     11‑step capacity control for smooth modulation and comfort
•     Built‑in anti‑cycling protection to extend equipment life
•     BEMS integration for external monitoring and control
•     SD card ( not included )

Compatible outdoor units: PUZ-ZM 35VKA PUZ-ZM 50VKA PUZ-ZM 60VKA PUZ-ZM 71VKA PUZ-ZM 100VKA/YKA PUZ-ZM 125VKA/YKA PUZ-ZM 140VKA/YKA PUZ-ZM 200YKA PUZ-ZM 250YKA PUZ-M 200YKA PUZ-M 250YKA

Installation Notes
The installation manual highlights that the PAC‑IF013B‑E is indoor‑only, not waterproof, and must be mounted where it’s protected from heat, humidity, oil, and steam.
It also includes thermistors and wiring accessories depending on the version.