WARNING
READ CAREFULLY – These instructions will help prevent difficulties that might arise during thermostat installation and operation. Studying the instructions first may save considerable time and money later. Observing the following procedures will keep installation time to a minimum. Save these instructions for future use
This thermostat has been designed to control conventional heating and cooling system or heat pump system.
HTW-81-FN7WF smart thermostat combines user-friendly touch sensitive buttons with WiFi wireless smart control application, offering unparalleled user control. Its local efficient control system and remote wireless smart control save up to 32% heating & cooling cost. Local energy-saving programmable solution for providing highly accurate temperature control. Remote wireless control through the application for providing easy and comfortable life style. Program a full 7 days schedule or change the settings through the App for total room control. The Apps support Google home and Amazon echo for good human-machine communication.
Wiring Diagram
Terminals | Explanation | Remark |
RC | Cooling power (two transformers) | Joined with R by jumper (one transformer) |
R | Heating power (two transformers) | Joined with RC by jumper (one transformer) |
W (O/B) | Heat output | Changeover valve output (heat pump) |
Y | Cool output | Compressor output (heat pump) |
G | Fan output | Blower Output |
C | 24VAC common | Connect only when AC power |
Y2 | Cool output 2 | 2nd stage compressor output (heat pump) |
W2(AUX) | Heat output 2 | Auxiliary heat output (heat pump) |
Wiring Instructions
No. | Type | Terminals | Wiring | Compressor delay |
0.0 | 1H/1C (conventional) | R、G、W、Y |
Diagram conventional systems | none |
1.0 | 1H/2C (conventional) | R、G、W、Y、Y2 | none | |
2.0 | 2H/2C (conventional) | R、G、W、Y、W2、Y2 | none | |
3.0 | 2H/1C (conventional) | R、G、W、Y、W2 | none | |
4.0 | 1H/1C (heat pump) | R、G、O/B、Y |
Diagram heat pump systems | 1 min (default) |
5.0 | 2H/1C (heat pump) | R、G、O/B、Y、AUX | 1 min (default) | |
6.0 | 2H/2C (heat pump) | R、G、O/B、Y、Y2 | 1 min (default) | |
7.0 | 3H/2C (heat pump) | R、G、O/B、Y、AUX、Y2 | 1 min (default) |
Wi-Fi Network Configuration
Search “Smart Life” or”‘Plus Thermostat’ from App Store or Google Play to download the APP.
Register an account number with the mobile phone number or e-mail address. Share user rights to others who have registered in the APP
Switch ℃ /℉
In normal display interface, press
Set time
Press & hold
Set mode
In normal display interface, press slowly to switch among “Heat, OFF, Cool & Auto”. After the state change, “ ” displays and temperature value flash for 5 sec. Users can choose to change the value for temperature setting. If not, press F twice to save the change and return to normal display. (Changed value only valid in this current Schedule, and will lose if Schedule, system state changes or power off) OFF: In this state, Heating, Cooling and Fan will all forced close. Displays keep on.
Auto: In this state, a constant temperature will be kept. Device will activate/ stop heating/cooling system automatically according to the setting and room temperature.
Conventional system
Heat
Note: 2nd heat stops and “AUX” disappears when temp. difference is less than 1 ℃.
Cool
Note: 2nd cool stops when temp. difference is less than 1 ℃.
Heat pump system
Note: Aux heat stops and “AUX” disappears when temp. difference is less than 2 ℃. 2nd heat stops when temp. difference is less than 1℃
Note: 2nd cool stops when temp. difference is less than 1℃
Compressor protection
After an operation of heating/cooling system, there is a 1 min compressor off time to protect compressor. “Wait” will display on the screen if next operation is activated within the 1 min period.
Fan mode setting
Mode setting
Press F to switch among “Schedule, Hold & Hold Until (Holiday)” modes.
Programmable Schedule(Programming)
When setting the parameters, press F to exit to the modify interface, then get back to the temperature setting interface.
The below table is the time parameter setting in different modes: (Factory Default)
Periods | Time | Parameters | Fan | |
Heating | Cooling/ Auto | |||
1 | 06:00 | 21.0℃ | 25.5℃ | Fan on |
2 | 08:00 | 16.5℃ | 29.5℃ | Fan on |
3 | 18:00 | 21.0℃ | 25.5℃ | Fan on |
4 | 22:00 | 16.5℃ | 28.0℃ | Fan on |
Hold
This mode comes after “Schedule” by pressing F. In this mode, the device will keep a constant temperature until the next change.
Hold Until (Holiday)
This mode comes after “Hold”by pressing F again. In this mode, device will follow the setting temperature and lasting days when users are out for a holiday. And then back to follow Schedules after the holiday.
Override temperature setting
During any Schedule period, press
Filter cleaning reminder
Sensor error
Reset to factory default value
Press
We warrant this product to be free from defects in material and workmanship under normal and proper use for one year from the purchase date of the original purchaser. We will, at its option, either repair or replace any part of its products that prove defective by reason of improper workmanship or materials. This limited warranty does not cover any damage to this product that results from improper installation, accident, abuse, misuse, natural disaster, insufficient or excessive electrical supply, abnormal mechanical or environmental conditions, or any unauthorized disassembly, repair or modification. This limited warranty shall not apply if: (i) the product was not used in accordance with any accompanying instructions, or (ii) the product was not used for its intended function. This limited warranty also does not apply to any product on which the original identification information has been altered, obliterated or removed, that has not been handled or packaged correctly, that has been sold as second-hand or that has been resold contrary to Country and other applicable export regulations.
Installer Set-Up Process(ISU)
Item | Explain | Range | Default | Remark |
Pb |
O/B terminal switch |
0.0/1.0 |
0.0 | 0.0—O; 1.0—B O=Reversing Valve in Heat pump Cool Mode B= Reversing Valve in Heat pump Heat Mode |
0 | Controlling Type | 0.0-7.0 | 0.0 | See table “Controlling Type” |
1 | (1H/1C)Differential | 0.5℃/1℃/1.5℃/2℃ | 1.0℃ | |
2 | Temperature calibration | -10℃~10℃ | 0.0℃ | |
3 | Temperature setting upper limit | 0-37℃ | 37.0℃ | Upper limit value > lower limit value |
4 | Temperature setting lower limit | 0-37℃ | 5.0℃ | |
5 | Filter change reminder | 1 /2 /30 /60 /90 /120 days | 90 days | |
6 | Clock format | 12 /24 hours | 24.0 | |
7 | Compressor protection delay | 0~10min | 1.0min | |
8 | Back light setting | ON/OF | OF | ON back-lit always on OF back-lit half bright when no operation |
9 | Temperature format | ℃/℉ | ℃ | |
Reset to factory default value | OF/ON | OF | ON for resetting |
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