NEC RIH-3267, RIH-2667 user manual How to Purge Air Tubes

Page 24

Installation instructions

How to Purge Air Tubes:

(1). Unscrew and remove caps from 2 and 3-way valves.

(2). Unscrew and remove cap from service valve.

(3). Connect vacuum pump flexible hose to the service valve.

(4). Start vacuum pump for 10-15 minutes until reaching a vacuum of 10 mm Hg absolutes.

(5). With vacuum pump still running close the low pressure knob on vacuum pump manifold. Then stop vacuum pump.

(6). Open 2-way valve 1/4 turn then close it after 10 seconds. Check tightness of all joints using liquid soap or an electronic leak detector.

(7). Turn 2 and 3-way valves stem to fully the valves. Disconnect vacuum pump flexible hose.

(8). Replace and tighten all valve caps.

Notes

Please read this manual before installing and using it.

Do not let air enter the refrigeration system or discharge refrigerant when moving the air conditioner.

When charging refrigerant into the system, make sure to charge in liquid state. Otherwise, chemical composition of refrigerant (R410A) inside the system may change and thus affect performance of the the air conditioner.

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 over-current protective device instead.

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 2-way and 3-way valve. Service valve:7/16 inch for R410A model.

Diameter of hexagon(inward): 4mm for R410A model.

22

PDF created with pdfFactory Pro trial version www.pdffactory.com

Image 24
Contents RIH-2667 RIH-3267 Use and Care Manual Auto Restart Presetting Preparation before useSafety precautions Identification of parts Indoor unit Outdoor unitUH series operating and display Timer Indicator Run IndicatorCompressor indicator Temperature display Sleep Indicator Remote controller Remote controllerIndication symbols on LCD How to Insert the Batteries Storage and Tips for Using the Remote ControllerHow to Use Choose Cooling Only Remote controller or Heat PumpOperation instructions Operation modesAirflow direction control Airflow direction controlSmart mode Your feeling Button Adjustment procedure Slightly warmerSlightly cooler Timer mode Timer-settingSleep mode Super modeMaintenance Cut off the power supplyClean and reinstall the air filter Close the front panel againProtection Protective device will work at following casesTroubleshooting Trouble AnalysisInstallation instructions Installation diagramLocation for Installing Indoor Unit Location for Installing Outdoor UnitIndoor unit installation Installing the Mounting PlateIndoor Unit Piping Installation Drill a Hole for PipingPiping Thermal Insulation Piping ConnectionModel Pipe size Torque Nut width Min.thickness Connecting of the Cable Indoor Unit Capacity Btu/h Power cord Power connecting cord TypeOutdoor Unit Indoor unit Outdoor unitOutdoor unit Indoor unit Outdoor unit installation Air purgingVacuum pump How to Purge Air Tubes ABN 86 001 217

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.