When no one is staying in a five-star hotel, the air conditioner is turned on 24 hours a day for guests who may check in at any time. How can this save energy?

In this case, a controller can be used to achieve energy saving without affecting the comfort of the guest room. Shenzhen Yuerui Technology makes this controller, called "Yuerui Hotel Air Conditioning Energy Saving Monitoring Module". The price is about 600 to 700 yuan, you can try it. The specific plans are as follows:

1. The phenomenon of serious waste of air-conditioning energy in hotel rooms

1. Maintain a relatively comfortable temperature in high-end hotel rooms when no one is staying (for example, the heating is maintained at 20 in winter ℃), and then adjust it to a cool temperature when guests check in (for example, the heating is adjusted to 26 ℃ in winter), which obviously causes a huge waste of energy.

2. The cooling temperature is set too low, mostly 18℃~20℃. According to expert calculations, if the air conditioner is used correctly, 10% of electricity can be saved for every 1°C increase in refrigeration and air conditioner temperature. It can be seen that the waste of electric energy caused by setting the cooling temperature too low is staggering.

3. The heating temperature is set too high, and many are set above 24°C. It is common to take off clothes and blow on the air conditioner. According to expert calculations, if the air conditioner is used correctly, 10% of electricity can be saved for every 2°C decrease in the heating and air conditioner temperature. It can be seen that setting the heating temperature too high also seriously wastes electric energy.

4. Some hotel air conditioners are not controlled by room cards. When guests leave the room, they do not turn off the air conditioner in time, causing great waste.

2. Poor comfort

1. Nowadays, the air conditioning in hotel rooms is generally controlled by the room card. When the card is inserted, the power will be turned on, and when the card is removed, the power will be cut off. Frequent power outages of the air conditioner can easily cause the air conditioner to malfunction. damage, especially if the compressor is operating.

2. If the air conditioner is turned off for a long time before check-in, the temperature will be uncomfortable. Especially in rooms that have not been stayed for a long time, there will be peculiar smell. The comfort will be poor when you first check in, and the impression of the hotel will be greatly reduced. .

3. After leaving the hotel temporarily and returning to the guest room, not only the room temperature is high, but also the air conditioner will not turn on automatically after power on. Guests need to press the remote control switch again before turning it on.

3. Overview of YR-HAC01 module functions

1. Three working modes: There are three working modes: air conditioning off mode, stay temperature mode and guest temperature mode.

2. The working mode can be controlled by the RS232 or RS485 interface (hereinafter referred to as the serial port).

3. The holding temperature corresponding to each working mode can be flexibly controlled through the serial port.

4. Various statuses of the air conditioner can be viewed through the module serial port, such as working status, mode status, working mode, etc.

5. Various parameters of the air conditioner can be controlled through the module serial port, such as working mode, temperature of each mode, etc.

6. The air conditioner is set with a temperature limit function, which can limit the maximum or minimum temperature of the air conditioner. For example, in summer, the minimum adjustment temperature of the air conditioner can be limited to 24°C; in winter, the maximum adjustment temperature of the air conditioner can be limited to 23°C.

IV. Three modes of this module

1. Turn off air conditioning mode: This mode is generally used to set after check-out. In this mode, the air conditioner will always be turned off, but every time It will be turned on for half an hour 24 hours a day and the air conditioner will be controlled to work in the air supply mode to prevent the guest room from producing odor if it is not occupied for a long time.

2. Stay temperature mode: This mode is generally used for guests to temporarily leave the hotel after checking in. The temperature is generally set to 30°C in summer and 14°C in winter. It does not consume electricity and can maintain a certain temperature. comfort level.

3. Check-in temperature mode: This mode is generally controlled by the front desk after guests register, or after guests enter the hotel and insert their cards. The temperature set in this mode should be more comfortable, generally 26°C in summer. , which is generally 22℃ in winter and can be set by the hotel reception desk.

5. Installation and control interface

1. Installation: This module is small in size and can be installed in an 86×86 standard bottom box.

2. Air conditioning interface: This module is connected to the air conditioner through a 5P data line, and the power supply is obtained directly from the inside of the air conditioner, without the need for additional power supply.

3. External control interface: This module is equipped with RS232 and RS485 interfaces to communicate with the main station. It can also be connected to other hotel control products through this interface. The company will provide a transparent communication protocol.

4. This module is suitable for 1P, 1.5P and 2P air conditioners of Daikin FTXD series.

VI. Comparative advantages with peers

1. Other products in the industry generally use infrared learning to control guest room air conditioners, which has more uncertainties and no status return after control; while this system It adopts air conditioning protocol control, directly controls the air conditioning main board, and has status return. If the control is not successful, the command can be reissued.

2. Other products in the same industry generally only have a single control function and cannot see the status; the main station of this system can see the status of all air conditioners, including working status, switch status, fault status, etc., such as air conditioners Faults can be discovered and repaired in time, instead of waiting for guests to discover air-conditioning faults, thus improving guest satisfaction.

7. Benefit Analysis

1. Economic benefits: According to the current use of air conditioners in hotel rooms, after installing this system, electricity bills will be significantly saved. If set according to the national legal temperature, the power saving rate is more than 50%. The investment cost can be recovered within 1 year.

2. Social benefits: Assist the government to effectively implement national laws, reduce energy consumption, cultivate and improve conservation awareness, and make due contributions to the construction of a two-oriented society.

3. Brand benefits: Optimize the temperature environment in the guest rooms, improve guest comfort, and further enhance guests’ recognition of the hotel brand.