HOTOWELL HTW-21RT User manual

Product Specifications
Power: 3*2 AA* 1.5V alkaline batteries Maximum current ： 90mA
Workin temperature: ： 0~70°C/32~158°F Display accuracy: ： 0.5 ℃
Ran e of temperature adjustment: ： 5~70°C/41~158°F Probe sensor: ： NTC(10k)1%
Ran e of temperature display: ： 0~70°C/32~158°F Thread size ： M30*1.5
Insulatin condition: Normal environment Size(mm) ： 66*52*82+20mm
Runnin pro ram: Set per 1 week as a cycle Maximum route ： 4.5mm
Description of function : This actuator will fine turnin for valve status of opened ,accordin to room
temperature and settin temperature ,to meet better status of power savin for put off the workin life of
battery
Displays & Buttons
NO: Display icon
A 7days week pro rammin and 24-hour heatin display icon
B Ener y savin mode , comfortable mode ,Valve statue ,Ventilation mode
C
Holiday mode ,Manual Mode ,Automatic Mode ,Boost Mode,Advanced
options ,Low battery ,Child lock
D Clock ,manual program ,setting 7days program ,setting 5+2 program
E Indoor temperature ,setting temperature
NO: key represent
F 1 Automatic and manual keys, holiday mode.
2 Lon press 3s to access pro rammable mode
G 1 Decreasin key
2 Force close valve : Press it until appear “OFF”on the screen
H
1 Short press to choose runnin comfort mode or ener y savin mode
2 Press 3s ,usin or to set temperature for comfort mode.Press
a ain,usin or to set temperature for ener y savin mode
I
1 Increasin Key
2 Force valve open: press it until appear “OP” on the screen
J
1 Short press ,usin it with other key for confirmation function
2 It is BOOST function for usin alone
3 Lon press 3s to unlock
Installation and initial commissioning
3s After power-up, left icon is shown
time settin
1 See flashin ， press to set ,minute ， usin or to adjust number
2 press to set hour ， usin or to adjust number ，
3 press to set week ， usin or to adjust number ， then press to confirm ， and remember
In normal workin condition after actuator was finished for adjustment ， If you need to modify
time.,please press about 3s ， to access settin interface ， then short press to switch to
， flashin after chose ， press” OK” ， to set time ， method is the same as above
4 “ADA”is shown on screen,press to adjust ， If the battery and ear reducer and valve
installation are no problem, flashin
Entry into the normal workin interface after completion of the adjustment 。 flashin ,
Note ： breakdown of adjustment ：（ After solved malfunction ， can restart to adjust by pressin ）
error
code Fault description
Er1
Route too short: in the adjustment process, the pin was stuck.which not reach position
of 2mm away from terminus
Er5 The temperature sensor is open or dama ed
Low battery, icon of battery is flashin
Function description
ode explain
Automatic ode press
， Run the automatic mode, display main interface
anual ode press
， Run the manual mode ， Display the main interface .
In the unlocked state ， press or to set temperature 。
Holiday mode
press ,see is flashin ， press to set temperature ， First set
temperature ( / ) ,next press set days ，（ From the start of the
countdown, the end of the holiday to resume automatic mode operation)
If you want to exit vacation mode ， ,press a ain ， can exit by selectin
manual or automatic mode
Run comfort mode
Short press ， then run comfortable mode
Run energy saving
mode
Under comfortable mode, Short press ， then run ener y savin
mode
Comfort mode
temperature and
energy saving mode
temperature setting
press 3s,choose ， flashin , then set temperature by press /
(default is 21 ° C) ,press a ain ,to set temperature for ener y savin
mode by pressin / to adjust temperature. Next press to
exit ,or auto exit s after 5st ， and return back display interface 。
BOOST
Short press , ,then valve of fast heatin is fully open,300s
countdown, resume previous operation of state.after time is over .Press
any key to exit this function and return to the previous workin state.
300s can be set in the Advanced Options A7 option

Force OFF” Press Until” OFF “ appears
。 Close the valve,keep to press , until
“OFF “ disappears ， Cancel this mode 。
Force OPEN Press
， until “OP” and appears
When “OP”disappear ， Cancel this mode 。
Child lock
If thermostat haven’t been operated within 10 minutes ， it will be locked
automatically ， key can’t be used after locked ， please press about
5s to unlock.
Ventilation and
energy saving
1: It is default that it is on closed for this function
2 When it is workin status for this function ,if room temperature drop
to critical valve which valve will be closed. ( adjustment ran e: 5 ℃ -25
℃ ), the valve will be closed for 15 minutes ( adjustment ran e: 5-60
minutes , The minimum adjustment unit for 5 minutes), Once time is
over, immediately return back previously operation mode. Meanwhole
valve will be fully open to up the temperature. If temperature is below
tri le temperature of ventilation mode. Then actuator will continue run
ventilation and ener y savin mode
Programming mode setting
Press about 3s, to access settin interface,short press to switch P0,P or P2. icon will .flash
after you chose
P0 manual programmable(default)：
week period Default period Default temperature
1 6:00-8:00 20 ℃
2 8:00-11:30 15 ℃
3 11:30 — 12:30 15 ℃
4 12:30 — 17:30 15 ℃
5 17:30 — 22:00 20 ℃
Workin days
6 22:00 — 6:00 15 ℃
1 8:00-23:00 20 ℃
Weekend 2 23:00-8:00 15
℃
usin or to choose the pro rammable model (5+2 days ,6+1 days and 7 days ) .. press to
confirm.,then can set time and temperature. Factory default is 5+2 days pro rammable mode
P1 setting ,default is 7 days programmable
week period Default period Default temperature
1 6:00-22:00 17 ℃
7 days per week 2 22:10-6:00 21
℃
P2 setting ,default is 5+2 days programmable
week period Default period Default
temperature
1 22:00 — 6:00 17 ℃
2 6:00 — 8:00 21 ℃
3 8 ： 00 — 16:00 17 ℃
Workin days
4 18:00 — 22:00 21 ℃
1 8:00-22:00 17 ℃
weekend 2 22:00-8:00 21
℃
Advanced options
press about 3-5s ， to access settin interface ， short press to choose settin item ， chose
,next press to access advanced options ， usin or to adjust value ， press to return to
last interface 。 After set, stay for 10s to exit the settin
sym
bol
Setting item Parameter default
A1 Measure the temperature
correction
-9-+9 ℃ 0.5 ℃ accuracy
correction
A2
Window ventilation function,
temperature value and time
settin
Temperature threshold: 5-25 ° C
Valve closin time: 0: 05-1: 00
(every press, chan e 5 minutes),
timin from the valve when all
closed.
1 Default critical
value of valve ： - -
℃ ( close
ventilation mode)
2 Temperature is
5 ℃ on shown
when press
,then mean
open ventilation
mode 3 0:15
mean time is
15min for valve
of closed
A3 Child lock settin 0
： open
1 ： close 0
A4 Re ularly correct route
0 ： Turn off re ularly correction
correction route at 8 o'clock per
Sunday , actuator automatically
open and closed one
time.operation normal mode after
correction
1:Re ular correction is open
0
A5 Set the minimum
temperature limit 1-10
℃ 5 ℃
A6 Set the maximum
temperature limit 30-70
℃ 35 ℃
A7 Extend BOOST runnin time
，
per press to increase 100s ，
100s-900s 300
A8 Check valve openin
100 mean valve openin 100%
5 mean valve openin 5%
Each increment is 5%
A9 Temperature hysteresis start
settin 1-9 2
A0 Reset
Display A0, press wind key
whole show88 ， usin or to
chan e to 00,press to reset
Default of controlling mode is auto mode and P2 programmable