English

(11)Replace the flare nut on the wide tube service port and fasten the flare nut securely with an adjustable wrench or box wrench. Next, mount the valve cap and tighten it with a torque wrench (the cap needs to be tightened with the torque of 20 N·m (200 kgf · cm)). This process is very important to prevent gas from leaking from the system.

(12)Test run the air conditioner. (See page 23.)

(13)While the air conditioner is running, apply liquid soap to check for any gas leaks around the service valves or caps.

(14)If there is no leakage, stop the air conditioner.

(15)Wipe off the soap on the tubing.

This completes air purging with a vacuum pump and the air conditioner is ready for actual operation.

■Pump Down

In order to protect the earth’s environment, be sure to perform pump-down to recover refrigerant

gas without releasing it into the atmosphere.

●When relocating or disposing of the Air Conditioner, request this service from the dealer where the unit was purchased, or from an appropriate agent. Perform pump-down as described below.

What is pump-down?

●Pump-down refers to recovering the refrigerant gas from the refrigerant cycle at the outdoor unit. This work must be performed during cooling operation. The refrigerant gas cannot be recovered during heating operation.

●During winter, or if the temperature sensor prevents cooling operation, perform “forced cooling operation.”

Pump-down procedure

 

Close

 

D

Narrow tube side

Close

 

C

 

Close

 

B

Charging port

Close

 

 

A

Fig. 22

(1)Fully close the spindles at the valves on the narrow tube side of tubes A, B, C and D. (Refer to Fig. 22.)

(2)Connect the manifold gauge to the charging port at the valve on the wide tube side of tube D. Purge the air from the charging hose. (Refer to Fig. 23.)

(3)Perform cooling operation or forced cooling operation.

When the pressure at the low-pressure side is 0.15 – 0.2 MPa (0.5 – 1 kg/cm2G), fully close the spindles at the valves on the wide tube side of tubes A, B, C and D, and immediately stop operation. (Refer to Fig. 23.)

In the winter, the outdoor unit may stop after 5 - 10 minutes of operation. This is in order to protect the indoor unit heat exchanger from freezing and does not indicate a problem.

(4)Disconnect the manifold gauge and the inter-unit tubes, and attach the caps and flare nuts. At this point, pump- down is completed. (If the caps and flare nuts are not reattached, there is the danger of gas leakage.) (Refer to Fig. 24.)

If pump-down is not possible

If the Air Conditioner cannot be operated because of a malfunction or other cause, use a refrigerant recovery device to recover the refrigerant.

D

C

Wide tube side

B

 

A

 

Manifold gauge

 

Fig. 23

Cap

 

Cap

After disconnecting

 

 

the inter-unit tubes,

Cap

attach the flare nuts

with flare bonnets.

Cap

 

Fig. 24

18

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SAP-CMRV1926EH, SAP-CMRV1426EH-F specifications

The Sanyo SAP-CMRV1926EH and SAP-CMRV1426EH-F stand out in the realm of advanced climate control solutions. As part of Sanyo's renowned lineup of air conditioning systems, these models are designed to offer superior performance, energy efficiency, and enhanced comfort, catering to both residential and commercial use.

One of the main features of the SAP-CMRV1926EH is its robust cooling and heating capacity, making it an ideal choice for larger spaces or those requiring rapid temperature adjustments. The model boasts a cooling capacity of up to 19kW, while the SAP-CMRV1426EH-F offers a more compact 14kW, making it suitable for smaller environments without compromising performance. This flexibility allows users to select a model that best fits their specific needs.

Both models incorporate advanced inverter technology, which significantly enhances their energy efficiency. By adjusting the compressor speed according to the ambient temperature, inverter systems minimize power consumption while maintaining a stable indoor climate. This not only reduces electricity bills but also contributes to a lower environmental impact, aligning with modern sustainability standards.

In terms of comfort, the Sanyo SAP-CMRV1926EH and SAP-CMRV1426EH-F feature sophisticated air distribution systems. They ensure even airflow throughout the area, eliminating hotspots and providing consistent temperatures. Additionally, the models are equipped with multi-split capabilities, allowing for multiple indoor units to be connected to a single outdoor unit. This versatility is particularly beneficial for larger buildings or homes with varied room requirements.

Both models also prioritize user convenience with sophisticated control options. They offer wireless remote controls as well as compatibility with smart home systems, enabling users to program settings and monitor indoor conditions from their smartphones or tablets. This modern approach enhances user engagement and allows for greater customization of the climate control experience.

Noise levels are another consideration in the design of the SAP-CMRV1926EH and SAP-CMRV1426EH-F. These units operate quietly, ensuring that they do not disrupt the tranquility of living or working spaces. Their low-noise operation is a testament to Sanyo's commitment to creating comfortable environments without compromising on performance.

In summary, the Sanyo SAP-CMRV1926EH and SAP-CMRV1426EH-F models are distinguished by their impressive cooling and heating capacities, energy-efficient inverter technology, advanced air distribution, user-friendly controls, and quiet operation. These features make them an excellent choice for anyone seeking reliable and effective climate control solutions.
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