TFC Group ECO ET2 User Manual
Page 2
will raise to 21
0
C until period 4 (P4). P4 will hold the temperature at 16
0
C
until period 1 (P1) 6am. You can edit the preset times/temperature values
by following the steps below.
1, Press , the hour will flash, Press , to change the hour
setting.
2, Press , the minute will flash, Press , to change the
minute setting.
3, Press , the temperature will flash, Press , to change
the temperature set-point.
Repeat this sequence for P2, P3 & P4 (Mon-Fri)
4, Press , the hour will flash for P1 day 6 (Saturday), Press ,
to change the hour setting.
5, Press , the minute will flash, Press , to change the
minute setting.
6, Press , the temperature will flash, Press , to change
the temperature set-point.
Repeat this sequence for P2, P3 & P4 (Saturday)
7, Press , the hour will flash for P1 day 7 (Sunday), Press ,
to change the hour setting.
8, Press , the minute will flash, Press , to change the
minute setting.
9, Press , the temperature will flash, Press , to change
the temperature set-point.
Repeat this sequence for P2, P3 & P4 (Sunday)
10, Press to confirm changes and return to default screen.
Selecting Temporary or Permanent Override Mode:
1, Press to change the mode from normal to Temporary Override.
The icon will be displayed.
2, Press again and the mode changes from Temporary to Permanent
Override mode. Icon will be displayed.
3, Press once more and the mode changes from Permanent Override
to normal timed operation.
Review and adjust the Override temperature:
1, With the ET2 in Temporary or Permanent override, press
or to display the Override temperature.
2, Press or for 2 seconds, the Override temperature will flash.
3, Release or and then use or to adjust the Override
temperature .
3, Press to exit Override temperature setting.
The ET2 will return to the default screen if no buttons are pressed after
10 seconds.
G, Temporary Override mode:
The Temporary Override mode is maintained until the start of the next
timed period.
Permanent Override mode:
The room temperature will be maintained at the Override temperature
set-point until the Override mode is released.
Releasing Override mode:
1, When the ET2 is in Temporary Override Press twice to return to
normal timed operation.
2, When the ET2 is in Permanent Override Press once to return to
normal timed operation.
H, Control Off / Sleep Mode:
1, Press to select the sleep mode and control off mode. The sequence
is as below:
Normal mode Sleep mode Control Off mode Normal mode ….
2, Press any other button to exit the Control Off / Sleep mode and return to
normal operation.
Sleep Mode:
When the ET2 is in sleep mode the icon is displayed. The ET2 stops
measuring and controlling the temperature. The heater/cooler is turned
off, irrespective of the current setting temperature.
Control Off mode:
When the ET2 is in Sleep mode and icon is displayed, pressing
will put the ET2 into Control Off mode. The LCD display and the
heater / cooler are turned off, irrespective of the current control
temperature setting.
I, Jumper Selection:
Delay / No Delay Jumper
Heater
Cooler
No Delay
10sec
4mins
Delay
4mins 4mins
Choose the Delay option if
compressor heat is connected.
12-hour / 24-hour mode jumper:
When the 12-hour option is selected, the time is shown in 12 hour mode.
Otherwise the time is displayed in-24 hour mode.
Heater / Cooler Jumper:
The ET2 can be set for a heating or cooling configuration via internal
J. Specification:
1, Temperature measurement:
0
0
C to 40
0
C
(0.1
0
C/step)
2,
Accuracy:
± 0.5
0
C
3, Temperature control range:
5
0
C to 35
0
C
(0.5
0
C/step)
4, Switching:
24..250V AC 50/60Hz
5(3.5)A
max
5,
Terminals:
2.5mm
2
cable
6, Electronic control:
Type 2.B action
7, Battery:
2 x 1.5V AAA Alkaline battery
8, Operating temperature:
0
0
C to 50
0
C
9, Storage temperature:
-10
0
C to 60
0
C
10, Sensing element:
NTC thermister
E, Factory Defined Programs:
The heater/cooler turns on according to the activated program and the
control temperature setting. When the heater/cooler is ON, the program
number and or will appear in the display.
The pre-defined programs are as below:
Cooler mode:
Heater mode:
F, Setting Your Own Program:
Mon to Fri, Sat and Sun are divided into four periods P1 to P4. The time set
for each period is the start time for that period. To set your own program
you should set the period start time and the temperature to be achieved
during that period.
e.g. In the table above P1 starts at 6am Monday and will hold the
temperature at 21
0
C until period 2 (P2) starts at 8am, when the
temperature will be lowered to 16
0
C until period 3 (P3) & the temperature
7
8
9
10
11
12
13
14
a = 12/24 hours
b = Delay / No delay
c = Heater / Cooler
TFC Group LLP, Tower House, Vale Rise, Tonbridge, Kent TN9 1TB
tel: 01732 351680 email: [email protected] web:tfc-group.co.uk