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        Smart Wifi Multi Stage Thermostat 

                                                                                           

Reference  No.:

 

HTW-81-FN7WF  Series 

 

6/7 

 

2.

 

After completed the time setting, Press

  to switch to the temperature setting, setting temperature flash and press 

  or 

  to modify the setting temperature.

 

3.

 

After finished the above steps, press 

  to switch to 2

nd

 period of Monday and repeat item 1 and 2 steps, then complete 4 

periods of Monday setting. Press 

  to save and enter schedule setting for the following day.   

The below table is the time parameter setting in different modes: 

(Factory Default)

 

 

 

Periods 

Time 

Parameters 

Fan 

Heating 

Cooling/ Auto 

06

00 

21.0

 

25.5

 

Fan    on 

08

00 

16.5

 

29.5

 

Fan    on 

18

00 

21.0

 

25.5

 

Fan    on 

22

00 

16.5

 

28.0

 

Fan    on 

Notes:Cooling and Auto mode use the same setting schedule.

 

Hold 

This mode comes after “

Schedule

” by pressing 

F

. In this mode, device will keep a constant temperature until next change. 

 

“Hold” 

& “

” display and temperature value flashing. Press 

  or 

  can change the value, and press 

F

 to save 

the setting; 

 

Press 

  can set system state;   

 

Press 

  can set fan mode.

 

 

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. 

 

“Hold Until” 

& “

” display and temperature value flashing. Press 

  or 

  can change the value, and press 

F

 to 

save the setting. Then days value flashing, users can choose from 1-180 days by pressing 

  or 

 

Press 

  can set system state; 

 

 

Press 

  can set fan mode.

 

 

Override temperature setting 

During  any  Schedule  period,  press 

  or 

  can  enter  an  interface  for  temperature  setting.  Press 

  or 

  to  change 

setting temperature, and press 

F

 to save the change. The changed setting only valid in the current Schedule period, device will 

follow the original schedule in next period. 

 

Filter cleaning reminder 

”  will  flash  on  the  screen  to  remind  users  of  cleaning  furnace  filter,  and  90  calendar  days  are  the  default  timing.  In 

Schedule 

mode, to press 

  for 3 sec, “

” will disappear from screen. 

 

Sensor error 

        If  “

FF

”  flashes  at  temperature  display  area,  it  means  the  temp.  sensor  is  out  of  work(short-circuit  or  broken-circuit),  all  the 

outputs will be forced close, and only back to normal work until the sensor circuit is normal again. 

 

Reset to factory default value 

Press

&

  for 3 sec. 

 

Summary of Contents for HTW-81-FN7WF Series

Page 1: ...rmostat App READ CAREFULLY These instructions will help prevent difficulties that might arise during thermostat installation and operation Studying the instructions first may save considerable time an...

Page 2: ...n echo for good human machine communication WIRING INSTRUCTION Cut off power supply at circuit breaker or fuse before installation to avoid fire shock or death WIRING DIAGRAM Step 1 Separate the insta...

Page 3: ...ut 2 2nd stage compressor output heat pump W2 AUX Heat output 2 Auxiliary heat output heat pump No Type Terminals Wiring Compressor delay 0 0 1H 1C conventional R G W Y Diagram conventional systems no...

Page 4: ...ute minute value flashes press or to modify the values Continually press it will switch among Year Month Day Hour Minute Press F to save the status then back to the temperature setting interface displ...

Page 5: ...temp difference is less than 2 2nd heat stops when temp difference is less than 1 Cool Changeover valve keep open Room temp Setting temp 1 Cool on displays and 1st stage cooling system is on Room tem...

Page 6: ...s 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 holida...

Page 7: ...terated 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 HIDDEN MENU In...

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