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    Wifi Wireless Thermostat 

                                                                                             

Reference No.:

 

HTW-11-U20-WF Series 

 

                                                         

 

- 2 -

                                                                            Version 2019-V1.0                                                                                             

 
 

 

Always  turn  off  power  at  the  main  power  source  by  unscrewing  fuse  or  switching  circuit 
breaker to the off position before installing, removing, cleaning, or servicing this thermostat. 

 

Read all of the information in this manual before installing this thermostat. 

 

Only a professional contractor should install this thermostat. 

 

All wiring must conform to local and national building and electrical codes and ordinances. 

 

This  thermostat  has  a  removable  fuse  to  protect  the  system  from  damage.  If  system  is  not  operating 
properly, check wiring and replace fuse if necessary. 

 

Use this thermostat only as described in this manual. 

 

 
 

Menu button

   

During  power  on  status  or  program  mode  ,  tap 

       

button  to  switch  between  programmable  mode  or 
Temporary hold(Manual) mode; Hold 

  button more than 

3  seconds  to  enter  program  setting,  tap 

  or       

  to 

adjust parameters, tap 

  to exit 

Time setting button

 

During  running  mode,  tap

  to  enter  time  setting  tap 

again to set Minute, press 

  or 

  to adjust minute. 

Press 

  to  confirm  and  exit,  tap 

  again  to  set  Hour, 

press 

  or 

  to adjust hour. Press 

  to confirm and exit, tap 

 

again 

to 

enter 

Week 

adjustment, press 

  or 

  to adjust week, Press 

  to confirm and exit. 

Power \Confirm button

 

 

In  setting  mode(program  setting  mode,  menu  setting  mode,  time  setting  mode)  tap 

  to  confirm 

and exit.   

 

In  normal  boot  working  status,    tap  and  hold 

  button  for  3  seconds  to  turn  off,  In  normal   

shutdown    state, tap 

  button to turn on.   

 

When the thermostat is in power saving(screen no display), tap 

  button to wake. 

Parameter increase

 

Parameter decrease

 

Wake up button

 

When  the  thermostat  is  in  standby  mode(no  display),  all  keypads 

 

  are  invalid  until  pressing 

wake  up  button  to  activate.,  the  thermostat  switches  to  standby  mode  if  no  buttons  tapped  after  5 
seconds 

Keypad Operation 

Summary of Contents for HTW-11-U20-WF Series

Page 1: ...between Transmitter and Receiver via RF Displays set point room temperature time simultaneously Permanent user setting and program setting retention after power failure Vacation mode and hold duration mode available for comfort and energy saving 7 day 5 2 Schedule Low battery indication Anti freezing protection Pump protection available Power supply 4 AAA batteries USB power supply RF Frequency ba...

Page 2: ...orary hold Manual mode Hold button more than 3 seconds to enter program setting tap or to adjust parameters tap to exit Time setting button During running mode tap to enter time setting tap again to set Minute press or to adjust minute Press to confirm and exit tap again to set Hour press or to adjust hour Press to confirm and exit tap again to enter Week adjustment press or to adjust week Press t...

Page 3: ...d button more than 3 seconds to enter the 1st configuration menu setting Tap to adjust parameters Tap button again to switch to next item tap button to confirm and return to standby mode If no button tapped within 10 seconds the thermostat will automatically exit configuration setting and back to standby mode Transmitter Power supply 100 240VAC 50 60Hz RF Frequency band 868MHZ Wireless signal effe...

Page 4: ...his thermostat has a removable fuse to protect the system from damage If system is not operating properly check wiring and replace fuse if necessary Use this thermostat only as described in this manual Installation Setps 1 Remove the screw from the bottom of thermostat Gently pull the control panel straight off the base Forcing or prying on the thermostat will cause damage to the unit 2 Connect wi...

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