9. FUNCTIONS

9-1. Operation Functions

Emergency operation

Emergency operation is available when the remote controller malfunctions, has been lost, or otherwise cannot be used.

To operate the system, press the OPERATION button, which is also used as the receiver, below the unit display. Each time this button is pressed, the OPERATION lamp changes color to indicate the type of operation. Select the desired type of operation.

COOL

 

STOP

 

(GREEN)

 

(Lamp Off)

The set temperature is 4°F(2°C) below the detected room temperature in the case of cooling operation.

SENSOR DRY

During DRY operation, the system adjusts the room temperature and fan speed according to the conditions in the room, in order to maintain a comfortable room environment.

SENSOR DRY operation

DRY operation is as shown in the figure below.

Load

COOL zone

Azone

Bzone

Conditions are monitored at all times when the room temperature is below 59°F(15°C).

DRY A

The compressor operation frequency varies.

The indoor fan operates with 1/f fluctuation.

DRY B

The compressor operates at a low operating frequency. The indoor fan operates with 1/f fluctuation.

Monitor

Monitoring operation takes place when the room temperature is below 59°F(15°C), or more than 5°F(3°C) below the set temperature.

When the monitoring range is entered, the compressor stops, and the indoor fan operates with 1/f fluctuation.

NOTE (CLxx models only)

The Sensor Dry operation during the Low Ambient Cooling Mode (outside air temperature:59°F(15°C) or lower) is as follows.

DRY A and DRY B

The compressor operates a cycle of 3 minutes ON and 6 minutes OFF repeatedly.

PAM- control

In order to further improve inverter performance, control is switched between PWM control at low operation speeds, and PAM control at high operation speeds, making the most effective use of power.

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Sanyo C1872, C2472, CL2472, CL1872 service manual Operation Functions

CL1872, CL2472, C1872, C2472 specifications

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