1. Product Purpose and Development Background
The UTY-DTGYZ1 Touch Panel Controller (TPC) is designed as a high-specification central controller for medium to small projects, building upon the previous TPC model.
Growing demand for centralized monitoring and control in commercial applications led to this advanced version, combining monitoring, energy management, and control into a single unit
2. Key Enhancements Compared to Previous Model
New features include:
Remote monitoring and control via LAN/WAN
Electricity charge apportionment (billing) function
Automatic summer time setting
Outdoor unit low noise mode control
Automatic error notification via email
Only Fujitsu’s controller uniquely supports billing function with separate heating and cooling cost calculation, distinguishing it from competitors
3. Compatibility
Compatible with all VRF series (S, V, and J series).
Supports up to 64 connected indoor units.
Network access and monitoring through LAN or WAN connection using a standard web browser (Internet Explorer, Chrome, Safari, Firefox) without installing special software
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4. Remote Monitoring & Control
Functions:
Monitor and control operation mode (ON/OFF, cooling/heating/auto, temperature, airflow, filter reset, energy saving, etc.)
Display error history and automatic fault email alerts including:
Project name, unit address, error code, model name, and timestamp.
Accessible via PC, tablet, or smartphone.
Per-tenant access can be configured, allowing monitoring of specific indoor units only.
Note: While smartphone display is supported, compatibility across all browsers cannot be guaranteed
5. Electricity Charge Apportionment Function (Billing System)
Purpose:
Allows the system to calculate and distribute energy consumption per tenant by tracking outdoor unit power data and allocating it by indoor unit run time.
Components:
Optional part: UTY-PTGXA (Electricity Charge Apportionment Kit)
Connections:
One TPC main unit
One electricity meter (connected via CH1 K1/K2 terminals)
PC (via LAN or USB)
Operation:
Billing data transferred from meter to TPC, then to PC for processing.
The ECA Tool (Electricity Charge Apportionment Tool) installed via USB provides:
Electricity charge calculation
Billing statement generation (split by heating/cooling)
Billing conforms to RT2012 (French regulation) standard
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Important:
Each USB key activates the ECA function for a single TPC.
Once used, it cannot be reused on another controller.
If the TPC is replaced, the USB must be reactivated.
6. Automatic Summer Time Setting
Schedule start and end dates for daylight saving time.
Once activated on TPC, the change automatically updates all connected remote controllers.
Configuration is performed through the operation manual included with the TPC main unit
7. Outdoor Unit Low Noise Setting
Noise reduction can now be set directly from the TPC, instead of outdoor unit DIP settings.
Users can activate or disable low noise mode on-demand through the controller interface.
When both TPC and outdoor unit have conflicting settings, outdoor unit settings take priority
8. Technical Specifications
| Feature | Specification |
|---|---|
| Connection | LAN / WAN (Ethernet) |
| Maximum Indoor Units | 64 |
| Browser Compatibility | IE, Chrome, Firefox, Safari |
| Power Supply | 240 V AC |
| External Inputs | CH1–CH4 |
| USB Port | For ECA activation and service maintenance |
| Optional Accessory | UTY-PTGXA Electricity Apportionment Kit |
9. Common Questions (Training Q&A)
| Question | Answer |
|---|---|
| Can TPC connect directly to an electricity meter? | Yes, via CH1 (K1, K2) terminal. Multiple meters require additional controllers. |
| Can the USB key be copied? | No, it is protected and single-use. |
| What happens if the controller fails? | A new TPC must be reactivated with the original USB. |
| Can ECA Tool run on Windows 10? | Yes (Windows Vista to Windows 10 supported). |
| Which browsers are compatible for remote access? | Internet Explorer, Chrome, Firefox, Safari. |
| Does low noise priority belong to TPC or outdoor unit? | Outdoor unit setting has priority if both are configured. |
10. Summary
The UTY-DTGYZ1 Touch Panel Controller combines monitoring, billing, and energy management for Fujitsu VRF systems in one device.
It offers:
Centralized operation control.
Web-based remote monitoring.
Integrated billing and reporting tools.
Automatic daylight saving synchronization.
Low noise management and system optimization.
This controller is ideal for commercial and multi-tenant buildings, allowing end users and facility managers to control, monitor, and manage operational costs efficiently