NEC RIH-2667, RIH-3267 user manual Outdoor unit installation, Air purging, Vacuum pump

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Installation instructions

Outdoorunitinstallation

1.Install Drain Port and Drain Hose (for heat-pump model only)

The condensate drains from the outdoor unit when the unit operates

 

 

in heating mode. In order not to disturb your neighbor and protect

 

 

the environment, install a drain port and a drain hose to direct the

 

 

condensate water. Just install the drain port and rubber washer to

 

 

the chassis of the outdoor unit, then connect a drain hose to the

 

Washer

port as the right figure shown.

Drain port

Drain hose

 

2. Install and Fix Outdoor Unit

 

(prepare by user)

 

 

Fix with bolts and nuts tightly on a flat and strong floor.

 

 

If installed on the wall or roof, make sure to fix the supporter well to prevent it

 

from shaking due to serious vibration or strong wind.

 

 

3. Outdoor Unit Piping Connection

 

 

Remove the valve caps from the 2-way and 3-way valve.

Connect the pipes to the 2-way and 3-way valves separately according to the required torque.

4. Outdoor Unit Cable Connection (see previous page)

Airpurging

The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the compressor. After connecting the indoor and outdoor units, evacuate air and moisture from refrigerant cycle using a vacuum pump, as shown below.

Vacuum pump

indoor unit

Service port

(2)Turn

(8)Tighten

Refrigerant flow direction

2-way valve

3-way valve diagram

 

3-way valve

 

 

 

connect to indoor unit

(6) Open 1/4 turn

(7) Turn to fully open the valve

(1) Turn

Valve cap

(8) Tighten

(7)Turn to fully open the valve valve cap

(1) Turn

(8) Tighten

Connect to outdoor unit

Valve core

open position spindle

needle

service port cap

Note: To protect the environment, be sure not to discharge the refrigerant to the air directly.

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Contents RIH-2667 RIH-3267 Use and Care Manual Preparation before use Auto Restart PresettingSafety precautions Indoor unit Outdoor unit Identification of partsCompressor indicator Temperature display Sleep Indicator UH series operating and display Timer IndicatorRun Indicator Indication symbols on LCD Remote controllerRemote controller Choose Cooling Only Remote controller or Heat Pump How to Insert the BatteriesStorage and Tips for Using the Remote Controller How to UseOperation modes Operation instructionsAirflow direction control Airflow direction controlSlightly cooler Smart modeYour feeling Button Adjustment procedure Slightly warmer Timer-setting Timer modeSuper mode Sleep modeClose the front panel again MaintenanceCut off the power supply Clean and reinstall the air filterProtective device will work at following cases ProtectionTrouble Analysis TroubleshootingInstallation diagram Installation instructionsLocation for Installing Outdoor Unit Location for Installing Indoor UnitDrill a Hole for Piping Indoor unit installationInstalling the Mounting Plate Indoor Unit Piping InstallationModel Pipe size Torque Nut width Min.thickness Piping Thermal InsulationPiping Connection Indoor unit Outdoor unit Connecting of the Cable Indoor UnitCapacity Btu/h Power cord Power connecting cord Type Outdoor UnitOutdoor unit Indoor unit Vacuum pump Outdoor unit installationAir purging 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.