7. FUNCTIONS

7-1. Explanation of 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.

 

Control/conditions

 

Unit operation

Explanation

 

 

 

 

 

 

INITIAL Breaker is ON.

 

 

 

Power is supplied to the indoor and outdoor unit

 

 

 

 

 

control circuits, however the unit remains stopped.

 

 

 

 

 

Positioning of the outdoor unit electric expansion

 

 

 

 

 

valve is performed.

 

 

 

 

 

 

 

The ON/OFF operation

If automatic operation mode has been selected

This applies in the case of automatic

 

button on the remote

with the remote controller, operation begins in

HEAT/COOL operation.

 

controller is pressed.

HEAT, SENSOR DRY, or COOL mode

 

 

 

depending on the room temperature and

 

 

 

outdoor temperature at the time operation starts.

 

 

 

 

 

 

 

 

 

 

 

Depending on the operational mode, refer to the HEAT, SENSOR DRY, or COOL item.

 

 

 

 

 

 

HEAT

The ON/OFF operation

 

 

Operation lamp illuminates.

The unit is forced to stop for 3 minutes after

 

button on the remote

 

 

Indoor fan is stopped to prevent cold air from

the power is turned ON, or 3 minutes after the

 

controller is pressed.

 

 

being emitted.

compressor stops, in order to protect the

 

 

 

 

Outdoor unit begins operating after

compressor.

 

 

 

 

The frequency is increased at the rate of 1 Hz

 

 

 

 

forced-stop is canceled.

 

 

 

 

 

every 0.5 seconds.

 

 

 

 

When the indoor coil temperature rises,

Depending on the relationship between the

 

 

 

 

the compressor starts,

remote controller temperature setting and the

 

 

 

 

 

 

 

 

the outdoor fan starts,

room temperature, the compressor may stop

 

 

 

 

temporarily (in other words, the thermostat

 

 

 

 

and the indoor fan changes from "LL"

 

 

 

 

may turn OFF).

 

 

 

 

 

 

 

 

to the set fan speed.

 

 

 

 

 

 

 

 

 

 

When the frequency reaches Hz,frequency

This is in order to stabilize the return of oil to the

 

 

 

increases are stopped for a period of seconds.

compressor.

 

 

 

(Refor to Table 2 "Freguency control".)

 

 

 

 

 

 

 

 

 

 

The frequency then increases.

If the indoor and outdoor temperatures are high,

 

 

 

 

 

the current peak cut-off activates, stopping any

 

 

 

 

 

increases in frequency.

 

 

 

 

 

 

 

The room temperature

 

 

The indoor temperature and the remote

Operating frequency is stabilized in order to

 

has reached the desired

 

 

controller temperature setting are

maintain a comfortable environment.

 

temperature.

 

 

approximately equal.

 

 

 

 

 

 

 

 

The thermostat turns

 

 

The indoor fan is stopped.

The outdoor unit stops. (It does not stop if the

 

OFF.

 

 

 

thermostat for another indoor unit is ON.)

 

 

 

 

 

Approximately 30 seconds after the

 

 

 

 

 

thermostat turns OFF, the indoor fan is

 

 

 

 

 

stopped.

 

 

 

 

 

 

 

The indoor and outdoor

 

In order to protect the compressor, the outdoor

The outdoor unit starts automatically after 3

 

temperatures are high.

 

unit will not operate for 3 minutes after the

minutes.

 

 

 

thermostat turns OFF, even if the room

During these 3 minutes, a low-pressure

 

 

 

temperature drops below the desired

pressure balance is achieved, allowing the

 

 

 

temperature.

compressor to start more easily.

 

 

 

 

 

 

 

 

 

 

The frequency is not increased, even if

The amount of heat pump exceeds the amount

 

 

 

 

there is a difference between the room

of heat radiation from the room.

 

 

 

 

temperature and the desired temperature.

Therefore, there is no need to further increase

 

 

 

 

In some cases, the frequency may be

the compressor capacity, and the frequency is

 

 

 

 

decreased.

stabilized or lowered.

 

The thermostat turns ON.

 

 

The indoor unit is stopped.

The unit operated before, and the temperature of

 

 

 

 

 

the indoor heat exchanger is relatively warm.

 

 

 

 

 

Therefore,the fan speed may start at the set fan

 

 

 

 

 

speed at the same time that the thermostat turns

 

 

 

 

 

ON.

64

Page 64
Image 64
Sanyo SAP-CMRV1426EH-F, SAP-CMRV1926EH service manual Explanation of Functions

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.