7-2. Protective Functions

NOTE The numerical values such as temperature, frequency, time and current in parentheses are an example of SAP-CMRV3146EH and the values are different from the other models.

7-2-1. Defrost Detection and Release

(1) Non-stop defrosting

Defrosting sequence

Heating operation

Frost detection

Non-stop defrosting

4-way valve ON

Defrost detection occurs in either of the following cases:

•The temperature of the heat exchanger remains at or below the L1 line for 35 minutes after the start of HEAT operation.

•The temperature of the heat exchanger remains at or below the L2 line for 120 minutes after the start of HEAT operation.

Outdoor heat

 

 

exchanger temperature

 

 

(–20)

0

Outdoor air

 

(– 6)

temperature

L2

(– 7)

 

(– 24)

 

L1

(– 25)

 

•

Compressor

(80 Hz) operation (4-way valve ON)

•

Outdoor fan

OFF

•

Solenoid valve

ON

 

(for hot gas bypass)

 

•

Indoor fan

OFF

Releasing of defrosting

•Temperature of the outdoor heat exchanger is at or above the temperature shown in the table below.

•Defrost operation has continued for 12 minutes (max. length).

Temperature of releasing

Defrost operation time

Less than 2 minutes

2 minutes or more

 

 

 

Heat exchanger

No releasing

14 °C or higher (*1)

temperature for

 

 

releasing defrosting

 

 

 

 

 

*1 The temperature for releasing of defrosting is (20 °C) or higher when the outdoor air temperature is less than 0 °C.

NOTE Defrost does not occur during HIGH POWER operation.

If other stopped indoor units are started during defrost operation, they begin operating in defrost mode.

(2) Clean defrost

If all indoor units are stopped during HEAT operation, and frost is detected at the L1 line, and the conditions for defrost are met, then defrost operation occurs, and the unit stops after defrost is completed.

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Sanyo SAP-CMRV1426EH-F Protective Functions, Defrost Detection and Release, Non-stop defrosting, Clean defrost
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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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