ABOUT YOUR THERMOSTATS :

BAC-3000 Series: wifi smart thermostat! Detect indoor and local temperatures in real time. Via wifi intelligent automation app "smart life" or ( Alexa or google iFTTT ) voice control air conditioning fans and valves (7 days programmable control) , for comfort and energy saving purpose.

Two pipe:

Control Fan Coil Unit and Two Wired Motorized Valve.

Four pipe:

Control Fan Coil Unit and Two Wired Heat Valve and Two Wired Cool Valve.If you are not sure if it is right for you, you can send us a circuit diagram and we can provide you with manuals and recommendations.

65.9*48.6 mm display area helps to protect your eyes

Large screen display with blue backlight is easy to read-even in the dark.

Precise comfort control keeps temperature within  0.5  Celsius  of the level you set.All setting languages synchronize your time zone, address and language.

Internal and external sensor selectable is suitable for any place. (customized) Data memory when power is off. (selectable) Easy installation.

3+6 Timetable:  six periods programmable maximize comfort and economy.Create thermostat group to centrally control . can be configured to meet almost any scheduling scenario for ultimate flexibility.Configuring WiFi.

Compatible with Amazon Alexa , Gooale Home, IFTTT.

Wireless wifi Remote Control Manage your home temperature, even when you are in any place around the world at any time.

TECHNICAL DATA

App Name : Tuya Smart / Smart Life Power Supply: 95 ~240 VAC, 50 ~60Hz Fan Relay Amps Resistance: 5A: Inductive: 3A Valve Relay Amps Resistance: 3A: Inductive: 1A Sensor: NTC3950, 10K Accuracy: ±0.5 ℃

Q:What is a Two pipe system and four pipe system?

A: Two pipe system : Two pipe control air conditioning box is only a set of coils, One in and one out (one water supply pipe + one return pipe = two pipes ), through cold water or hot water. Four pipe system : Four pipe system means that the air-conditioning box is equipped with cold coils and hot coils at the same time. Each set of coils One in and one out , a total of four . The two sets of water pipes are connected to cold water and hot water respectively , The cold coil and hot coil in the equipment work independently to achieve some room heating. At the same time, other rooms cool down. (two water supply pipes + two return pipes = four pipes)

Q:Advantages of Two pipe system and Four pipe system

Two pipe system : Less pipelines, fewer valves, Low maintenance costs , less space, low input costs, suitable for smal spaces! Four pipe system : Good adaptability, suitable for larger buildings, especially for buildings with large heating in winter, meeting the demand for simultaneous cooling and heating.

Shipping:

1. Items will be shipped within 1-3 business days after we verify your payment. 2. Please tell me your current address after your payment within 1-2 days; otherwise, we will ship your item based on your address, so make sure it is correct..... 3. The default choice of AliExpress Standard Shipping ! Normally,15-60 days to reach the destination, different countries arrived at different times! 4. Sometimes it would be longer because of the bad weather, a waste of time in customs clearance. Thus please wait patiently when you do not receive your item on time. If you don't receive the item within 60 days, please contact us, and then we will help you track it. Return Policy : 1. We hope our products can always make you satisfied! 2. If there's anything wrong, please contact us at the first time, through online system or e-mail within 3 days after the arrival, better with pictures to show the problem clearly. 3. If you are not satisfied with the quality of the goods and need to return or exchange, do it within 15 days after the arrival.. Feedback : 1. Your feedback is really important to us. Please take a few seconds to leave a great feedback if you are satisfied with our product and service, thank you! 2. We always offer the lowest price for best goods and service to you. 3. Big order discount: Please Follow to our shop . your all orders , Will get a Gifts and Big Discounts ! Contact Us : 1. If you have any questions or need any help, please feel free to contact us! 2. We do try to respond as quickly as possible. but please allow to delay response for non-business time. We will be glad to answer any question. Have any questions feel free to contact me. FAQ : Q: How do I pay for my purchase? A: We accept the following payment methods : Qiwiwallet ; T/T ; WebMoney ;Credit card; Western Union ; Boleto ; SOFORT Banking ; PayPal Q: How much does it cost to ship to my country? A: Free shipping (Some countries need freight !) Q: Is there any tracking Number for my item? A: Yes, we ship every order with their Tracking Number, and you can view the shipment status on the corresponding website. Q: Does this product come with retail package? A: We have declared the packing detail on the description of each product, please check it. Thank you! Q: I am a Seller. I would like to buy many pieces of your item, what's the wholesale price? A: Hi, thanks for your inquiry, if you would like to buy large quantity, please send email to us, we will give you the best price, Thanks! Q: Commodity service? A: If there are any problems with the parcel or products, please let us know ! We accept return for exchange or refund, please return to us within 30 Days after you receive the item . We provide 1-year warranty.