Notes
Please read this manual before installing and using it.
When charging refrigerant into the system, make sure to charge in 
According to the character of refrigerant (R410A), the pressure of the tube is very high, so be sure to careful when you install and repair the appliance.
Testing run the air conditioner after finishing installation, and record details of operation. 
Type of fuse used on indoor unit controller is 50T, with rating 2.5 A,T,250V.
The fuse for the whole unit is to be provided by the user according to the current at maximum power Input or use other 
Only the air conditioner can be connected to the power line.
The power connection for the air conditioner has to be done at the main power distribution which has to be of a low impedance.
In order to ensure the suitability of the equipment for connection, the user should consult with the supply authority, if necessary, that the service current capacity at the interface point is sufficient for the equipment.
Refer to the rating plate of the equipment for power consumption details.
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or similarly qualified person in order to avoid a hazard.
Please pay more attention to the details of 
RIH-2667, RIH-3267 specifications
The NEC RIH-2667 and RIH-3267 are advanced communication terminals designed to enhance connectivity in various environments, from corporate offices to remote locations. These devices are a product of NEC's commitment to delivering high-performance technology solutions.The RIH-2667 is known for its robust and user-friendly design. It features a wide array of communication protocols, which makes it compatible with existing network infrastructures. This adaptability is crucial for businesses aiming to implement seamless integration across various devices. The terminal supports both wired and wireless connections, ensuring reliable communication regardless of the setting.
On the other hand, the RIH-3267 builds on the strengths of the RIH-2667, offering enhanced processing capabilities and agility. One of its main features is the support for high-speed data transmission, utilizing advanced algorithms for data optimization. It employs the latest telecommunications standards, enabling efficient handling of large volumes of data while maintaining a stable connection.
Both models are equipped with state-of-the-art security technologies, ensuring that communications remain confidential and secure. With features like end-to-end encryption and secure access protocols, they address the growing concerns of data privacy in today’s digital age.
The user interface of the RIH-2667 and RIH-3267 is intuitive, allowing for easy access to vital functions and settings. They come with customizable options for users, granting flexibility in terms of configuration and operation. This adaptability is particularly beneficial for organizations that require tailored solutions to meet specific operational demands.
In terms of physical characteristics, both devices are designed to be compact and lightweight, making them ideal for deployment in various locations without requiring significant space. Their rugged construction ensures durability, allowing them to withstand challenging environmental conditions.
Another noteworthy aspect is the customer support and maintenance services provided by NEC. The company offers comprehensive support programs, ensuring that users receive timely assistance, which is crucial for maintaining operational efficiency.
In conclusion, the NEC RIH-2667 and RIH-3267 are distinguished models in the field of communication technology. Their innovative features, robust security systems, and flexible configurations make them suitable for a wide range of applications. Organizations looking to enhance their communication capabilities will find these devices to be invaluable assets in achieving their strategic objectives.