Revised Date: 2017/08/24
1
TE221 Series
Programmable Digital Room Thermostats
Modulating or On/ Off Heating Control
OPERATION MANUAL
Front view Back view
#
Item
Description
1
LCD
Display temperature and working status.
2
MODE button
Access to user and engineer menu and for setting
confirmation
3
℃
/
℉
button
Toggle to change
℃
/
℉ scale unit
4
UP & DOWN buttons
Increase & decrease setting or previous/next item
5
SET button
Setting for schedules and Time/ Date
6
On/Off button
Start/ Stop Using Heating Device
7
Set-point icons
Displaying set-point temperature while it is flashing
8
AUTO icons
Device is in Using
9
Flake icon
NA
10
Hot spring icon
Indicate working on Heating mode
11
Flow icon
NA
12
Gear icon
Indicate Heating Device currently is Open or ON
13
Clock
NA
14
Sleep
NA
15
Moon Sign
Indicating room is unoccupied via occupancy contact
16
Outdoor icon
NA
17
Cover screw
Screw to tighten back cover with front cover
18
Back plate
Plate for mounting on electric box
19
Wiring terminal blocks
Terminals for wiring
20
Mounting holes
Holes for mounting on electric box
21
Time
Display time
22
Schedule number
Current Schedule running or setting
23
Day
Current day of Sunday ~ Saturday or Selected setting
day
1151-5-1-01
