3. Installation
The controller should be installed at a place in the
room which:
●
is freely accessible for ease of operation
●
is free from curtains, cupboards, shelves etc.
●
permits free air circulation
●
is not directly exposed to solar radiation
●
is free from draughts (opening of windows and
doors)
●
is not directly exposed to heat source
●
is not located on an external wall
●
is 1,5 m above the floor.
Install direct on a conduit box, or with adapter frame
ARA 2E.
4. Electrical connection
Caution: disconnect electric circuit from supply
In making the electrical connection, proceed in the
following sequence:
●
Remove the temperature adjustment knob (1)
●
Push the mounting hook outwards, using a screw
driver
●
Remove housing top
●
Push out battery compartment, using a screw dri-
ver, remove battery protection strip
●
Carry out electrical connection in accordance
with circuit diagram (see housing top)
Note:
●
Connect n/c valves to terminal 2
●
Connect n/o valves to terminal 3
●
When temperature is below set value, contact
9-2 is closed.
●
When mode selector switch is in Off position
n/o and n/c valves are closed.
5. Technical data
Order no. easy 2t daily timer
easy 2w weekly timer
EDP no. easy 2t 515 2701…
easy 2w 515 2702…
Supply voltage Battery 1,5 V type LR 14
Alkaline
Battery life time approx. 2 years
Temperature setting range:
Room temperature 5…30°C
Set back temp. 5…30°C
Frost protection approx. 5 °C (fixed)
Mode of control on-off
Static hysteresis approx. 0,2 K
Output Relay, 1 x c/o contact
Switching current 10 mA…10 A cos ϕ= 1
max. 4 A cos ϕ= 0,6
max. 10 terminal
actuators
Switching voltage 12…250 V AC
Switches day / automatic / night /
frost protection / off
Temperature sensor integrated
Range limitation integrated in the
setting knob
Timer:
Accuracy < 10 min/year
Switching time setting every 15 min daily timer
every 1 h weekly timer
Degree of protection IP 30
Protection class II (see important!)
Operating temperature –10…40°C, without
moisture condensation
Storage temperature –25…70°C
Dimensions 160 x 80 x 36 mm
Weight (with battery) approx. 270 g
Mounting and
Operating Instruction for
2-wire-clock-
thermostat easy 2
Important!
The electronic clock thermostat must not be
opened except by authorized personel. Any
installation must be in accordance with the
circuit diagram provided inside the cover, and
must follow these instructions.
The current safety regulations must be observed.
For protection class II recognition, adequate
installation measures must be taken.
This electronic clock thermostat, which can be
installed separately, is designed exclusively for
temperature control in dry and closed rooms
and standard environments. It has radio interfe-
rence suppression in accordance with VDE
0875 T.14 and EN 55014 respectively and
operates in accordance with 1C (EN 60730).
1. Applications
The electronic timer thermostat easy 2 can be used
for controlling the room temperature in connection
with:
●
Warm water convector or underfloor heating
●
Electric convector, ceiling and storage heating
●
Night storage heating
●
Chillers
●
Circulating pumps
●
Burners
●
Heat pumps etc.
Features
●
Very simple operation
●
Day and night temperatures independently selec-
table
●
5 operating modes for:
➩ Permanent comfort temperature
➩ Permanent set back temperature
➩ Timer mode (automatic)
➩ Frost protection
➩ Off
●
Available with daily- or weekly- timer
●
Hinged cover
●
control algorithm On-off
●
Relay output, 1 changeover contact
●
New EBERLE design 2000
2. Function description
The timer thermostat is designed to control the
room temperature.
In the automatic mode, a changeover is effected
between comfort and set-back temperature by the
built in timer.
If room temperature falls below set value, heating is
started.
6. Operation
Setting of temperatures
Comfort temperature (day temperature)
This is set by means of the adjustment knob (1)
on the outside.
Setback temperature (night temperature)
This is set by means of the adjustment knob (2)
under the cover.
Setting the time
Place one finger on the dial (3) and turn it in the
desired direction to set the time.
Arrow (4) points at the selected time.
Setting the switching times
Using a pointed object, move the switch actua-
tors (5) into desired position.
Outward = Comfort temperature
Inward = Set-back temperature
Mode selector switch (6)
É Comfort temperature, permanent (day temp.)
2 Automatic mode, timer-controlled changeover
between comfort- and set back temperature
Set-back temperature, permanent (night temp.)
P Frost protection, permanent (5°C)
Off, no control taking place. The controller itself
is not separated from operating voltage.
Battery change
If the timer noticeably lags, battery should be
changed within 1 week.
When changing the battery, observe correct po la-
rity.
Wiring diagram
