FAQs – How Does Energy Saver Work?

Recently, we received some testing feedbacks from our clients about the Hotel Occupancy AC/Light Control System. There are some similar questions about the energy saving system, such as how dose energy saver work, how to enter unoccupied mode etc.

Below we gather main testing feedbacks to help better understand how this system works.

Q1: Dip switches are in 0 position that means delay time in all outputs are 1 min. But after 1 min the S1 output is deactivated but S2, S3 continue to be activated. Why?

A1: Yes, when dip switches are all in 0 position, the default delay time is 1mins, but it is not for all outputs. In unoccupied mode, S1 output logic is different from S2 and S3, which is no delay time setting. The reason that S1 output is deactivated after 1min is because the E2 input is opened for 1min. Please refer to magnetic window contact operating algorithm in the datasheet.

Q2: What is the unoccupied mode? How can I set the unoccupied mode?

A2: When the door is closed from opened position, the system will detect if there is movement within 3s~T4 in the room. If no movement is detected in 3s~T4, the system will set the room as “unoccupied”, then S1 output runs in Anti-humidity mode(refer to Fig.1 in the datasheet); S2, S3 will be disconnected after the delay time T2 and T3(refer to Fig. 2 and Fig.3 in the datasheet. )

In a word, the signal to tell the system to start detecting whether there is presence is from E1, the door contact. Below please find the unoccupied test video taken by our team.

Q3: Why the wireless window contact is working in inching mode (receiver is deactivated shortly and then re-activated when the contactor is opened.) ? As what we discussed, the receiver should be opened position when contactor is opened; and receiver should be closed when contactor is closed. They should be same position. So why do they not act that way?

A3: There is a wire jumper in PCB board of the receiver, find it and take it off. Then receiver and wireless contact will act same way.

Q4: Can we use the system to reach: split air conditioning will be disconnected when window is open in hotels?

A4: Technically, it is 100% possible. Window contact (E2 input) is associated with S1 output, whose relay output is 250V, 16A. But current algorithm of S1 in unoccupied mode is not for delay time setting. If want to change the algorithm, we have powerful R&D team to support but it requires a MOQ no less than 500units.

FAQs will keep update according to clients' testing. If anything unclear, please feel free to contact our team for more information.

Contacts:

Tiana

Email: alpha@hotowell.com

Whatsapp/M:+86-153-5987-0423

Skype: alpha@hotowell.com