Eco ET2 Instruction Manual

TFC Group LLP, Tower House,
Vale Rise, Tonbridge, Kent TN9 1TB
http://www.tfc-group.co.uk
TABLE OF CONTENTS

A. Installation and mounting

1, Installation

2, Wiring

3, Mounting

B, Start/Reset

C, Normal Time Mode

D, Normal Time Setting

E, Factory Defined Programs
F, Set Own Program
G, Temporary/Permanent Override Mode
H, Control Off/Sleep Mode
I, Jumper Selection
J, Specification
2, Wiring:
There are three terminals at the bottom of the ET2, labelled as
"Com" (Common), "NO" (normally open) and "NC" (normally closed).
Connect the appliance to the "NO" and "Com" terminals. Leaving the "NC"
terminal empty.
•
Refer to the circuit diagram printed on rating label on the back of the
product.
•
Push all wiring into wall prior to mounting to avoid trapping wires.
•
The thermostat should be protected by the fused spur supplying the
heating system using a fuse with a current rating no larger than 5A.
Mains
Switching
3, Mounting:
Mount the ET2 using the screw accessories provided through slots/holes on
rear face of the unit.
B, Start/Reset:
1, After wiring and mounting, switch off all connected devices. Place 2
new AAA 1.5V alkaline batteries ensuring correct orientation of battery
polarity. LCD display will show.
2, Press 'RST' to reset. The ET2 is now ready to control the heater/cooler.
3, Switch on the heater/cooler. The heater/cooler will remain off until the
ET2 activates the output, with
configuration for a heating or cooling application.
C, Normal Time Mode:
1, Temperature detection starts and LCD displays the room temperature.
2, If the battery is low, will be flashing. If
hours and the batteries have not been replaced, the ET2 will stop
measuring the room temperature and the LCD will go blank. The ET2 will
turn off the output and the heater/cooler will cease to operate. The
system will only function once the discharged batteries are removed and
new batteries are fitted.
1
3
or displayed depending on
has been flashing for 48
5
Digital Programmable Thermostat
ET 2 LCD Programmable Thermostat
Page
A, Installation & Mounting:
2
2
Caution:
3
Turn off the ET2 and any electrical devices that are to be
connected after installation. The installation must be carried
3
out by a qualified electrician and conform to current IEE
5
regulations.
5
6
1, Installation Location:
7
The thermostat should be mounted on an inner wall 1.5m above the floor in
8
a position where it is readily affected by changes in the ambient room
10 temperature. Prevent direct exposure sunlight and moisture. Do not place
this unit where air circulation is low, or where it is susceptible to rapid
12
temperature changes (e.g. near a door or window). Do not position near
13 heating/cooling appliances.
14
Battery installation / Replacement:
Caution: Turn off electrical devices and disconnect the supply to any
connected appliances before installing or replacing batteries. Replace only
with the same (AAA Alkaline) or equivalent batteries. Do not dispose of used
batteries with household waste. Refer to your local area for correct disposal
method.
1, Pull out the battery draw.
2, Place new batteries taking note of
orientation of +/- on battery drawer.
3, Dispose old batteries properly.
4, Slide battery draw into position.
5, Check operation and press reset
if not functioning correctly.
3, In heating mode frost protection is activated automatically if the ambient
temperature falls below 5
will be forced ON for heating or OFF if the ET2 is configured for cooling.
4, If the ambient temperature is below 0
0
5, Above 40 C "HI" will show in the display.
D. Setting the real-time clock:
1, Press , the day of week (1-7) will flash 1=Monday. Press
To select the current day of the week.
2, Press , the hour will flash, press
3, Press , the minute will flash, press
4, Pressing will return back to step 1 (day setting).
5, Press to confirm settings and return to the default screen.
Note: If no buttons are pressed within 10 seconds the ET2 will return to the
default screen
ET2
For
Weekday/Weekend Setting
INSTRUCTION MANUAL
2
(Figure 1)
4
0
C. Will show in the display and the output
0
C "LO" will show in the display.
, to set the hour.
, to set the minute.
6
,