The Mitsubishi Electric PAC-TH011-E (often misread as PSC-TH011-E) is a temperature sensor/thermistor set designed for Mitsubishi Ecodan air-to-water heat pump systems.

Key Overview

• Primary Function: Monitors flow and return water temperatures for heating circuits, buffer/decoupling tanks, or dual-zone heating setups (Zone 1 / Zone 2)

• System Integration: Connects directly into the main control board/interface (such as FTC5 or FTC6) to send accurate temperature feedback to the heat pump controller.

• What's Included: Typically supplied as a pair of thermistor sensors (THW6 & THW7 or THW8 & THW9) attached to 5-meter leads for flexible positioning during installation

  Flow & Return Monitoring: Measures water leaving and returning from secondary circuits to maintain balanced delta-T control.

Compatible Controllers (FTC Series)

The PAC-TH011-E plugs directly into Mitsubishi's Flow Temperature Controller (FTC) mainboards:

• FTC4 (e.g., PAC-IF051 / PAC-IF052)

• FTC5 (e.g., PAC-IF061 / PAC-IF062)

• FTC6 (e.g., PAC-IF071 / PAC-IF072)

• FTC7 (e.g., PAC-IF081 / PAC-IF082)

Compatible Indoor Units

It works seamlessly with Mitsubishi’s Ecodan hydrobox and cylinder units, including:

• Hydrobox / Packaged Units: EHSC, EHSB, EHSE, ERSC, ERSB series

• Pre-Plumbed & Standard Cylinder Units: EHST, ERST, EHPT, ERPT series

• Control Interfaces / Heat Source Controllers: PAC-IF series FTC boxes