JPH046338A - Multi-air conditioner - Google Patents

Abstract

PURPOSE:To enable an operation mode to be fixed without using any cooling-heating changing-over remote controller by a method wherein an option switch is installed in a remote control switch, an operation mode changing-over can be carried out when the switch is set to ON and a mode setting can be carried out only when the multi-air conditioner is stopped when the switch is OFF. CONSTITUTION:An outdoor device 1 is connected to indoor devices 3 and 4 through a transmitting circuit 1b. The indoor device 2 is connected to a remote control switch 5 through transmitting circuits 2b and 2a and to the outdoor device 1 and the indoor device 3. The indoor devices 3 and 4 are also connected in the same manner as above. Remote control switches 5 to 7 are provided with option switches. In the event that the option switch of the remote control switch 5 is turned on and the other option switch is turned off, and that the multi-air conditioner is stopped, the operation mode is set with the remote control switches 5 to 7 to enable its operation to be carried out. Thereafter, the operation mode changing-over can not be performed with the operation changing-over switches for the remote control switches 6 and 7, the non- operated condition is displayed at a liquid crystal displaying part and then the changing-over can be performed only with the operation changing-over switch of the remote control switch 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for switching operation modes in a multi-air conditioner.

[Conventional technology]

In a multi-air conditioner, multiple guide units are connected to one refrigerant system, but each indoor unit cannot be operated separately, for example, for cooling and heating. As shown in Daikin Industries, Ltd.'s multi-EXII equipment design materials for buildings, an outdoor unit is equipped with a remote control for switching between cooling and heating to fix the cooling, heating, and ventilation modes.

[Problem to be solved by the invention]

In the above conventional technology, it is necessary to operate the air conditioner from two places: the remote control switch connected to multiple indoor units and the cooling/heating switching remote control connected to the outdoor unit.
There was a problem that the operation became complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a multi-air conditioner in which the operating mode can be fixed whenever a remote controller is used to switch between cooling and heating.

[Means to solve the problem]

To achieve the above purpose, an option switch is provided on the remote control switch, and when the option switch is set to the ON side, the operation mode can be changed by pressing the operation selector switch, but if the option switch is set to the OFF side, the operation mode can be changed by pressing the operation selector switch. In this case, the operation mode can be set using the operation selector switch only when the multi-air conditioner is stopped.

[Effect]

The option switch provided on the remote control switch is set to the on side as an initial value, but the structure allows it to be switched to the off side even after the remote control switch is mounted on the wall. As a result, after installing the multi-air conditioner, if you set the option switches of all the remote control switches except for one remote control switch to the off side, you can switch the operation mode of the multi-air conditioner from only one place, and the fire will not start. , cooling and heating commands will no longer occur at the same time, preventing malfunctions.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

FIG. 1 is a block diagram of a multi-air conditioner, and shows the case of multiple indoor units.

The outdoor unit 1 includes a control section 1a and a transmission circuit 1b, and is connected to the indoor units 2, 3, and 4 by two-core wiring via the transmission circuit 1b. The indoor unit 2 includes a control section 2C, a remote control transmission circuit 2b, and an outdoor transmission circuit 2a, and is connected to the remote control switch 5 via the remote control transmission circuit 2b, and the outdoor unit 1 and the indoor unit 3 are connected to the outdoor transmission circuit 2.
They are connected by two-core wiring via a. Indoor unit 3
゜4 has a similar configuration.

FIG. 2 is a front view of the remote control switch. The remote control switch 5 includes a liquid crystal display 5a and push button switches 5b, 5c,
It consists of 5e to 5j and an option switch 5d.

The liquid crystal 5a is a dot matrix liquid crystal and is capable of displaying kanji characters. The push button switch 5b is a run/stop switch, the push button switch 5C is an operation switch, and the other push button switches 50 to 51 are for temperature setting, air volume setting, and air direction setting. The option switch 5d is an ON10FF changeover switch.

FIG. 3 is an operation flowchart.

Turn the option switch 5d of the remote control switch 5 to the on side, and turn the option switch 6d of the remote control switch 6.7 to the on side.
, 7d will explain the operation when set to the off side.

The multi-air conditioner is stopped as an initial state, and in this case, the operation changeover switch 5c, 6c can be operated from either the remote control switch 5, 6.7.

You can set the driving mode by pressing 7c, and then
The multi-air conditioner can be operated by pressing the operation switches 5b, 6b, and 7b. After the multi-air conditioner starts operating, press the operation selector switch 6c, 7 of the remote control switch 6.7.
Even if I press c, I cannot change the operation mode, and the LCD screen 6a, 7
``Currently cooling (heating). The operation mode cannot be changed.'' is displayed on a. When the operation changeover switch 5c of the remote control switch 5 is pressed, the operation mode can be changed from cooling to dry, dry to blowing air, blowing to heating, and heating to cooling.

According to this embodiment, the operating mode of the multi-air conditioner can be switched at only - points, and malfunctions will not occur.

〔Effect of the invention〕

According to the present invention, while the multi-air conditioner is operating, the
While the machine is stopped, the operating mode can be set from multiple locations.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a multi-air conditioner according to an embodiment of the present invention, FIG. 2 is a front view of a remote control switch, and FIG. 3 is an operation flowchart. 1... Outdoor unit, 2, 3.4... Indoor unit, 5.6.7... Remote control switch, 5d... Option switch. Fuhibuma 2

Claims (1)

[Claims] 1. In a multi-air conditioner in which a plurality of indoor units are connected to one outdoor unit, and a remote control switch is connected to each of the indoor units, the remote control switch is provided with an option switch, and the option switch When set to the ON side, the remote control switch is configured to switch the operation mode of the multi-air conditioner to cooling, heating, drying, and blowing. When the option switch is set to the OFF side, the multi-air conditioner's operation mode is Cooling only when the operation mode is stopped,
A multi-air conditioner characterized in that heating, drying, and blowing operation modes can be set, but when the multi-air conditioner is operating in a certain mode, the operation mode cannot be switched.