(4)With the “Lo” knob of the manifold valve open and high-pressure valve (“Hi”) closed completely, run the vacuum pump. Run the pump until the pres- sure is –101 kPa (–76 cmHg). The operation time for the vacuum pump varies with tubing length and the capacity of the pump. The following table shows the amount of time required for evacuation:

Table 5

Required time for evacuation when capacity

of 100 liter/h vacuum pump is used

20 min. or more

NOTE

The required time in the above table is calculated based on the assumption that the ideal (or target) vac- uum condition is around 10 mmHg abs.

(5)With the vacuum pump still running, close the “Lo” knob of the manifold valve. Then stop the vacuum pump. Fully close the low-pressure valve and stop the vacuum pump. (Wait 1 – 2 minutes and check that the manifold gauge pointer does not return. If it does return, find and repair the leak, then apply the vacuum again.)

(6)With a hex wrench, turn the valve stem on the nar- row tube service valve counter-clockwise by 90 degrees (1/4 turn) for 10 seconds, and then turn the stem clockwise to close it again.

CAUTION

Be sure to completely insert

the hex wrench before

 

 

 

attempting to turn the valve.

(7)With a standard screwdriver, turn the wide tube service valve stem counterclockwise to fully open the valve.

(8)Turn the narrow tube service valve stem counter- clockwise to fully open the valve.

(9)Loosen the vacuum hose connected to the wide tube service port slightly to release the pressure. Then, remove the hose.

(10)Leak test all joints at the tubing (both indoor and outdoors) with liquid soap. Bubbles indicate a leak. Be sure to wipe off the soap with a clean cloth.

CAUTION

If a CFC gas detector is used,

use a special detector for HFC

 

 

 

refrigerant (such as R410A and

 

R134a).

English

17

Page 123
Image 123
Sanyo SAP-CMRV1926EH, SAP-CMRV1426EH-F service manual Be sure to completely insert, Attempting to turn the valve

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.