Complete

R32 Ducted Inverter PCB Access
Overview This procedure outlines the correct and safe process to access and remove the Inverter PCB located within the R32 ducted outdoor unit. Following t...
Wed, 5 Nov, 2025 at 11:44 PM
AOTA72LALT and AOTA90LALT Outdoor Functions
Overview The Fujitsu Airstage AOTA72LALT and AOTA90LALT outdoor units feature a built-in diagnostic and configuration interface, allowing field technicians...
Wed, 5 Nov, 2025 at 11:47 PM
Refrigerant Branch Box (RB Unit) Error Indication
Overview The Refrigerant Branch Box (RB Unit) in Fujitsu Airstage VRF systems distributes refrigerant flow between the outdoor unit and multiple indoor uni...
Wed, 5 Nov, 2025 at 11:48 PM
8-Port & 12-Port Refrigerant Branch Box Addressing
Overview When using Fujitsu Airstage VRF systems equipped with 8-port or 12-port Refrigerant Branch Boxes (RB units), certain installation conditions requi...
Wed, 5 Nov, 2025 at 11:50 PM
UTB-TUD → UTB-TUB Replacement Guide
Overview The UTB-TUB wired remote controllers (models AR-3TA3 and AR-3TA12) have been discontinued. As a direct replacement, the UTB-TUD (model AR-6TC2) ca...
Wed, 5 Nov, 2025 at 11:52 PM
UTY-DTGYZ1 – Touch Panel Controller Password Reference
Overview The UTY-DTGYZ1 is a Fujitsu Airstage touch panel central controller used for managing multiple indoor units in a VRF system. During commissioning ...
Wed, 5 Nov, 2025 at 11:53 PM
UTY-CDRXZC / UTY-CDRXZD Zone Controller – Function Settings
Overview These controllers allow management of multiple zones connected to a single indoor unit using a 2-wire remote controller system. Function settings ...
Wed, 5 Nov, 2025 at 11:54 PM
UTY-FGAN1 – LED Flash Code Guide (UART Wi-Fi Adapter)
Overview The UTY-FGAN1 Wi-Fi module connects Fujitsu air conditioning systems to the IntesisHome or AnywAIR mobile app. During setup, the LED indicator pro...
Thu, 6 Nov, 2025 at 12:01 AM
Chiller Unit Battery Pack Charger – NBC24V1BLCWMN
Part Number: 325739 Overview The NBC24V1BLCWMN is a compact battery charger module designed to manage and charge a 24V / 7.2Ah lead-acid battery or two 12...
Thu, 6 Nov, 2025 at 12:04 AM
VRF System – Low Noise Mode Performance Data
Overview This document details sound levels and capacity reduction ratios for various Fujitsu VRF systems when operating in Low Noise Mode (Level 1 & 2...
Thu, 6 Nov, 2025 at 12:07 AM