Complete
Description Thermistors are critical temperature sensors used to monitor operating conditions throughout Fujitsu systems, including room air, refrigerant c...
Tue, 11 Nov, 2025 at 10:49 PM
Description Electronic Expansion Valves (EEVs) regulate refrigerant flow through the system by using a stepper motor controlled via precise voltage pulses....
Tue, 11 Nov, 2025 at 10:52 PM
Description The pressure transducer sensor is a critical input component used to monitor the refrigerant system pressure in both heating and cooling modes....
Tue, 11 Nov, 2025 at 10:55 PM
Description The Active Filter Module (ACTPM), also referred to as the Active PFC / IPM Module, is responsible for maintaining efficient power factor correc...
Tue, 11 Nov, 2025 at 11:00 PM
Overview FAN Mode operation is now available on certain VRF indoor units. This functionality was added following a software update that introduced inverse ...
Tue, 11 Nov, 2025 at 11:04 PM
Overview The Intelligent Power Module (IPM) — also referred to as the TR PCB — is a key inverter board component responsible for switching and driving the ...
Wed, 12 Nov, 2025 at 12:15 AM
Overview The Bridge Rectifier (or Diode Module) converts AC input voltage to DC voltage to supply power to the inverter circuit. This test confirms diode i...
Wed, 12 Nov, 2025 at 12:25 AM
Overview The DC Brushless Fan Motor operates using a high-voltage DC circuit (330–380V DC) and a 15V DC control circuit. It includes an integrated control ...
Wed, 12 Nov, 2025 at 12:28 AM
Overview The compressor is the core component responsible for pressurizing refrigerant within the refrigeration cycle. Accurate resistance and insulation t...
Wed, 12 Nov, 2025 at 12:30 AM
Overview The 3-Wire Remote Signal Test verifies communication integrity between the wall-mounted remote controller and the indoor unit. This test confirms ...
Wed, 12 Nov, 2025 at 12:32 AM