Toshiba RAV-SP420AT2-UL, RAV-SP360AT2-UL, RAV-SP300AT2-UL „Tightening of Flare, Connections

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Outdoor Unit

„Tightening of Flare

Connections

Installation Manual

•After the installation work, be sure to check for gas leaks of the pipe connections with nitrogen.

1.Align the centers of the flare connections and fully tighten the flare nuts with your fingers.

Valve at liquid side

Cap

Loosened

Piping valve

NO GOOD

Charge orifice

Cover

Tightened

Flare nut

2.Use two wrenches to loosen or tighten the flare nut on the gas service valve as shown in the figure. Use only one wrench to loosen or tighten the flare not on the liquid service valve.

The final tightening with a torque wrench should be to the specifications shown in table below.

 

Unit : ft•lbs (N•m)

 

 

 

Outer diameter of copper pipe

Tightening torque

 

 

 

 

3/8” (9.5 mm)

24 - 31 (33 - 42)

 

 

 

 

5/8” (15.9 mm)

50 - 60 (68 - 82)

 

 

 

 

CAUTION

1.Do not put the crescent wrench on the charge orifice or cover.

The valve may be broken.

2.If applying excessive torque, the nut may break according to some installation conditions.

•Pressure of R410A is higher than that of R22 (Approx. 1.6 times).

Therefore, using a torque wrench, tighten the flare pipe connecting sections that connect the indoor/ outdoor units at the specified tightening torque.

Incomplete connections may cause not only a gas leak, but also trouble with the refrigeration cycle.

Do not apply refrigerant oil to the flared surface.

Valve at gas side

Cap

Charge orifice

Loosened

Cover

Piping valve

Flare nut

Tightened

13-EN

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Contents Installation manual Contents Dimension DischargeAccessory Parts System Requirements „ Piping Field suppliedPrecautions for Safety Be sure to ground the equipmentEquipment Damage Hazard New Refrigerant Air Conditioner Installation Installation of NEW Refrigerant AIR Conditioner„ Required Tools/Equipment and Precautions for Use Example „ Installation LocationDo not install the outdoor unit in the following location Barrier at rear side Barrier in front „Required ClearancesUnit in mm Upper side is free Above unit is freeInstallation Manual „ Installation of Outdoor UnitStandard installation Barriers in front and back of unit„ For Reference No GoodProjection margin in flaring B Unit in mm Rigid Clutch type Refrigerant PipingFlaring Flaring diameter size a Unit in mmDo not apply refrigerant oil to the flared surface „Tightening of FlareConnections „ Field wiring Electrical Connections„Wiring Attach the front pipe cover with 4 screws Deep Vacuum Method Using Vacuum PumpEvacuate and Dehydrate the System Triple Evacuation MethodFinal Tubing Check Open service valvesValve handling precautions Liquid side10TEST RUN 11PERIODIC MaintenanceFinishing 12TROUBLESHOOTING Verifying Error code status Outdoor control boardD800 D801 D802 D803 D804 D805 13UNIT Pump Down 14POWER SaveProcedure EH99865501

RAV-SP420AT2-UL, RAV-SP300AT2-UL, RAV-SP360AT2-UL specifications

Toshiba has established itself as a leader in HVAC technology, providing solutions that cater to diverse climate control needs. Among its notable models are the Toshiba RAV-SP300AT2-UL, RAV-SP420AT2-UL, and RAV-SP360AT2-UL. Each of these units is designed to deliver efficient cooling and heating, suitable for both residential and commercial applications.

The RAV-SP300AT2-UL is a compact air conditioning unit that emphasizes energy efficiency. With a cooling capacity of 30,000 Btu/h and a heating capacity that mirrors this output, the unit is an ideal choice for moderate-sized spaces. One of its key features is the use of inverter technology, which allows the compressor to adjust its speed according to the cooling demand. This not only reduces energy consumption but also ensures a consistent indoor climate.

Moving to the RAV-SP420AT2-UL, this model offers higher performance with a cooling capacity of 42,000 Btu/h. It maintains energy efficiency while providing robust climate control capabilities. The RAV-SP420AT2-UL is equipped with advanced filtration systems that enhance indoor air quality by removing dust, allergens, and other pollutants. Additionally, the unit features a quiet operation mode that minimizes noise, making it suitable for environments where comfort and tranquility are paramount.

The RAV-SP360AT2-UL occupies a middle ground with a cooling capacity of 36,000 Btu/h. Like its counterparts, it harnesses inverter technology for optimum efficiency. This model is particularly noted for its versatility, as it can effectively serve a wide range of commercial applications. It also boasts smart technology integration, allowing users to control their HVAC systems remotely via smartphones or smart home systems.

All three models are constructed with durable materials designed to withstand varying weather conditions. They also feature a self-diagnostic system that assists technicians in identifying issues quickly, thereby minimizing downtime. Furthermore, Toshiba's commitment to sustainability is evident in these units, as they are designed with eco-friendly refrigerants that comply with global environmental standards.

In conclusion, Toshiba's RAV-SP300AT2-UL, RAV-SP420AT2-UL, and RAV-SP360AT2-UL represent the forefront of HVAC innovation. With their unique features, energy efficiency, and advanced technologies, these air conditioning systems provide reliable performance tailored to the needs of users, ensuring comfort and satisfaction in any environment.
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