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468 931 032 740-2
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.
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
easy 2w
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
10 mA...10 A cos ϕ = 1
Switching current
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
6. Operation
Setting of temperatures
Comfort temperature (day temperature)
1
This is set by means of the adjustment knob (1)
on the outside.
Setback temperature (night temperature)
2
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
3
desired direction to set the time.
Arrow (4) points at the selected time.
4
Setting the switching times
Using a pointed object, move the switch actua-
5
tors (5) into desired position.
Outward = Comfort temperature
Inward
6
Mode selector switch (6)
É Comfort temperature, permanent (day temp.)
2 Automatic mode, timer-controlled changeover
between comfort- and set back temperature
Ñ
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.
3
daily timer
weekly timer
Wiring diagram
Battery handling
of precious resources. Your local waste manage-
ment authority can supply details concerning the
proper disposal of batteries.
= Set-back temperature
4
5
6
2
1
9
2
3
Batteries, rechargeable or not, should
not to be disposed of into ordinary
household waste. Instead, they must
be recycled properly to protect the
environment and cut down the waste
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