GENERAL AIRSTAGE UART Cable for Gas Sensor – UTYXWZXZL

In a refrigerant leak detection system, the GENERAL AIRSTAGE UTYXWZXZL UART cable is the OEM part that connects the gas sensor. It is the same part under the Fujitsu AIRSTAGE brand: Fujitsu General Limited, now owned by Paloma Rheem Holdings, renamed itself GENERAL Inc. on January 1, 2026, without touching the model numbers. The acronym UART refers to a serial communication link: this cable is how the sensor and the unit pass their signals to each other.

A link that is part of the unit’s safety

When the unit runs on an A2L refrigerant such as R-32, leak detection is one of its safeguards. The sensor still has to stay in touch with the unit: a faulty link makes it useless. So we install the cable the manufacturer provides, not a generic connector. Sometimes no external cable is needed at all: the manufacturer indicates that several R-32 AIRSTAGE units, for example the ARUH ducted units and the AMUH units, have their sensor built in.

The information to send us

Before ordering the cable, we validate the installation from this information:

• the model number of each unit, indoor and outdoor, read from its nameplate
• the unit’s refrigerant, as displayed on the nameplate (R-32, R-410A…)
• where possible, a photo of the spot where the unit sits

Routing, connection and testing

The cable routing follows the unit’s manual, and we test the detection system once the connection is complete. A unit with A2L refrigerant requires a qualified technician for any work.

AirGreen, everywhere in Greater Montréal

AirGreen’s team of refrigeration technicians works on GENERAL or Fujitsu AIRSTAGE units in Montréal, Laval, Longueuil, on the North Shore and on the South Shore. All our service calls are carried out under RBQ licence 5645-9605-01. Pass on your model numbers at 514 316-2973 or sales@airgreen.ca, and we will tell you whether the cable is available or send you a quote.