Complete
1. Purpose The Administrative Indoor Unit—commonly referred to as the Master Indoor Unit—controls the operation mode (Cool / Heat / Auto) for all connected...
Sat, 8 Nov, 2025 at 2:09 AM
1. Purpose The Test Run verifies correct installation, wiring, refrigerant charge, and system operation before commissioning. It allows technicians to chec...
Sat, 8 Nov, 2025 at 2:11 AM
Installation and product manual for a cassette that suits the UTZ-VXGA Suits product APPLICABLE INDOOR UNITS : MODEL NAME AUTA30LBLU AUTA36LCLU ...
Wed, 5 Nov, 2025 at 6:38 PM
Conditions for Starting Defrost Operation The defrost operation begins when the outdoor heat exchanger temperature sensor (Tn) detects a temperature lowe...
Tue, 11 Nov, 2025 at 7:13 PM
Defrost Flow Sequence The defrost cycle operates based on the compressor’s cumulative run time, outdoor temperature, and outdoor heat exchanger temperatu...
Tue, 11 Nov, 2025 at 7:17 PM
A communication error (COMS error) may occur due to a faulty resistor on the IPM (Intelligent Power Module) board. To confirm the fault: Set the multi...
Tue, 11 Nov, 2025 at 7:19 PM
Purpose To ensure proper communication between the indoor unit and the connected wired remote controller, the indoor unit’s PCB must be configured accordin...
Tue, 11 Nov, 2025 at 7:22 PM
⚠️ Important: Ensure the unit is switched OFF before performing any maintenance. 1. Opening the Intake Grille Open the intake grille in the directio...
Tue, 11 Nov, 2025 at 7:25 PM
Description of Control Operation Applicable Models: ASTG30KMTA / ASTG34KMTA / ASTH30KMTD / ASTH34KMTD 1. Cooling Capacity Control A room temperature the...
Tue, 11 Nov, 2025 at 7:31 PM
Overview When installing an external input/output PCB (Model: UTY-XCSXZ2), the indoor unit can interface with external control systems such as Building Man...
Tue, 11 Nov, 2025 at 7:36 PM