EN
Operating manual
thermio™ eco ECOsave
This manual ensures safe and efficient use of the “thermio™ eco ECOsave” multi-tariff timer with boost
function (referred to as “device” in the following). This manual is a component of the device and must
remain accessible at all times for everyone who uses the device.
Everyone who uses the device must have read and understood this manual before commencing any
work. The basic prerequisite for working safely is compliance with all safety instructions and usage
instructions specified in this manual. Furthermore, the local accident prevention regulations and the
general safety regulations in the area in which the device is operated apply.
Illustrations in this manual are intended to provide a general understanding and may differ from the
actual design.
Copyright
This manual is copyright protected.
Handover of this manual to third parties, reproductions of any type and form – including excerpts – and
use and/or disclosure of the content without the written permission of Grässlin GmbH (referred to as
“manufacturer” in the following), except for internal purposes, is not permitted. Violations will result in
liability for compensation. The manufacturer reserves the right to assert additional claims.
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The copyright is held by the manufacturer.
© Grässlin GmbH
Bundesstr. 36
78112 St. Georgen
GERMANY
Declaration of conformity and download instructions
The declaration of conformity for the device described in this manual, a download of the manual, and
the technical data can be found at
www.graesslin.de
.
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Overview................................................................................................. 5
Safety..................................................................................................... 8
Installation............................................................................................ 12
Operation............................................................................................. 24
Setting the time.................................................................................................................. 24
Setting the on/off time........................................................................................................ 26
Setting a BOOST period....................................................................................................... 27
Removal and disposal......................................................................... 29
Removal............................................................................................................................. 29
Disposal.............................................................................................................................. 31
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Overview
Fig. 1: Front view
1 LED display for low-cost electricity tariff
2 Two-pole on/off switch
3 BOOST rotary switch and button
4 LED display for BOOST activity
5 Dial with tappets
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The “thermio™ eco ECOsave” multi-tariff timer switches the connected loads on or off in defined steps;
the smallest possible switching time is 15 minutes. This makes it possible to individually adjust heating
periods to times with lower cost electricity tariffs, for example; the standard local electricity tariffs are
set by default. The BOOST rotary switch and button can be used to switch on the device for a defined
period, independently of the set switching program. Four BOOST periods can be set: 15 min, 30 min,
60 min or 120 min.
Elements Function
LED display for low-cost electricity tariff
Indicates whether the connected load is supplied with low-cost
electricity.
On/off switch Activates/deactivates the settings (times for low-cost electricity
tariff, BOOST period):
ON – settings are active.
OFF – settings are deactivated, timer remains on.
BOOST rotary switch and button Short-term activation of the connected load.
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Elements Function
LED display for BOOST Indicates whether the BOOST period is activated.
Dial Settings for the switch-on/switch-off times.
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Safety
Safety instructions
Safety instructions are indicated in this manual by symbols. The safety instructions are introduced by
signal words that express the extent of the danger.
This combination of symbol and signal word indicates a potentially dangerous
situation that may result in death or severe injuries if the situation is not
WARNING!
avoided.
This combination of symbol and signal word indicates a potentially dangerous
situation that may result in material damage if the situation is not avoided.
NOTICE!
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This combination of symbol and signal word indicates potential dangers for
the environment.
ENVIRONMENT!
Tips and recommendations
This symbol highlights useful tips and recommendations, as well as information for efficient and fault-free operation.
Intended use
The “thermio™ eco ECOsave” multi-tariff timer is used exclusively for switching immersion heaters
(individual, twin or dual immersion heaters) with a resistance load of up to 3 kW. The connected devices
must comply with the limits specified in the technical data.
The intended use also includes compliance with all information specified in this manual.
Any use other than the intended use is considered incorrect use. The legal warranty is voided by any
interference with, or modifications to, the device.
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Damage to the timer due to incorrect installation position!
If an unsuitable installation position is selected, the timer may be damaged.
NOTICE!
− Only use the timer in dry rooms and do not install close to devices with
inductive discharge (motors, transformers etc.).
Residual risks
The device is state-of-the art and designed in accordance with current safety requirements. However,
residual risks remain that require caution when using the device. The residual risks, and the conduct
and measures they require, are listed in the following.
Danger to life due to electric shock!
Improper assembly and installation of the device may result in life-threat-
WARNING!
ening electrical voltages.
− Have assembly and connection performed by a qualified electrician only.
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Danger due to insufficient wire cross-section!
If wires with an insufficiently large cross-section are used, short circuits or
WARNING!
fires may occur.
− Only use terminals with a cross-section between 1.5 mm² and 4 mm²
for flexible wires.
Personnel requirements
Qualified electrician
Professional training, knowledge and experience, and knowledge of the relevant standards and regulations allows the qualified electrician to perform work on electrical systems and to identify, and avoid,
potential dangers of their own accord.
A qualified electrician is specifically trained for the work environment in which they work, and are
familiar with the relevant standards and regulations.
User
The user is the person who uses and operates the device in compliance with proper use, without any
prior knowledge.
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Installation
Electric connection and installation
The device can be mounted on the wall or in a flush-mounted socket.
If mounted on the wall, the connection wires either come directly out of the wall or they are routed to
the device on top of the wall.
In general, the following instructions apply to both installation types. Where
there are difference, the corresponding installation type is specified before
the instructions.
Danger to life due to electric shock!
Improper assembly and installation of the device can lead to life-threatening
WARNING!
electrical voltages.
− Have assembly and connection performed by a qualified electrician only.
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Danger of material damage to wires in the wall!
Selecting the wrong installation position can result in material damage to any
NOTICE!
wires in the wall.
− Make sure that there are no wires in the wall at the installation position.
Personnel:
• Qualified electrician
Special tool:
• Power drill
• Drill
• Phillips screwdriver
Prerequisite:
• The terminals for the flexible wires have a cross-section between 1.5 mm² and 4 mm².
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Removing the housing base
Fig. 2: Housing base
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1 Cable feed-through
2 Strain relief for breaking out
3 Defined breaking point for cable feed-through
4 Earth contacts
5 Safety screw
6 Screw plug for strain relief
7 Connection terminal strip
8 Fastening screws and hole pattern
1. Undo the safety screw (Fig. 2/5) on the housing base using a flat-head screwdriver.
2. Remove the housing base.
Preparation for on-wall mounting
3. Mark the hole pattern for the housing base (Fig. 2/8) onto the wall.
4. Drill holes at the points you marked.
5. Insert suitable wall-plugs for the screws into the holes.
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Fig. 3: Connection wires out of the flush-mounted socket
6. Connection wires out of the flush-mounted socket (Fig. 3): Thread the connection wire into the
device through the cable feed-through (Fig. 2/1).
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Fig. 4: Connection wires directly out of the wall
7. On-wall mounting with connection wires directly out of the wall (Fig. 4): Thread the connection wire
into the device through the cable feed-through (Fig. 2/1).
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Fig. 5: On-wall connection wires
8. On-wall connection wires (Fig. 5): Break out the necessary defined breaking point (Fig. 2/3) and
thread through the connection wires.
9. On-wall connection wires: Break out the strain relief clamps (Fig. 2/2).
The strain relief clamps (Fig. 2/2) have to be broken out for on-wall
mounting, otherwise the device does not fit smoothly against the wall.
10. On-wall connection wires: Fasten the connection wires with the broken out strain relief clamps to
the screw plug for the strain relief clamps (Fig. 2/6).
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Installation
11. Fasten the housing base to the wall-plugs with the screws or into the flush-mounted socket.
Connecting
12. Strip insulation from the connection wires.
• Stripping length: 8 mm
13. Insert the earth connection wire into the earth contact (Fig. 2/4).
To ensure wiring is correct, consult the operating manual for the heating
system in use.
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Fig. 6: Wiring diagram
1 Live conductor for supply
2 Neutral conductor for supply
3 Neutral conductor
4 Live conductor for BOOST
5 Live conductor for low-cost electricity tariff
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14.
Make sure that the maximum load between the terminals is 3 kW. After
completing the wiring, measure the resistance as follows:
− 3 and 4 > 17 W
− 3 and 5 > 17 W
Insert the connection wire for the device into the corresponding terminals (Fig. 6/7) in accordance
with the wiring diagram (Fig. 6).
15.
Tightening torques
To avoid damage and faulty contacts, tighten the terminals using a
NOTICE!
torque of 0.7 – 1.5 Nm.
Tighten all terminals using the Phillips screwdriver.
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Closing the housing
WARNING!
Fig. 7: Closing the housing
Risk of fatal injury from open housing!
Failure to close the housing can result in a short circuit between contacts or
in fire.
− Make sure that the red stripe (Fig. 7/2) on the edge of the housing is no
longer visible.
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16. Place the upper part of the housing on the housing base so that the red stripe (Fig. 7/2) is no longer
visible.
17. Tighten the safety screw (Fig. 7/1) on the housing base using a flat-head screwdriver.
The device is now fully installed.
ð
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Operation
Setting the time
Personnel:
• User
Fig. 8: Setting the time
1 Indicator marker
2 Dial
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1.
Risk of material damage due to turning anti-clockwise!
Turning the dial or the clock hand anti-clockwise can result in material
NOTICE!
damage to the timer.
− Make sure to turn the dial and clock hand clockwise only.
Turn the dial (Fig. 8/2) clockwise until the indicator marker (Fig. 8/1) matches the current time.
In 12 hour display: 8 = 8.00 a.m. and 14 = 2.00 p.m.
The timer does not distinguish between summer and winter time. As a
result, you have to set the summer and winter time manually by
adjusting the current time Ä Chapter "Setting the time" on page 24.
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Setting the on/off time
In the factory setting, the times from 3:30 a.m. to 7:30 a.m. are set to make use of off-peak electricity.
You can adjust or supplement this setting.
Personnel:
• User
Fig. 9: Setting the tappets
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1.
Each tappet represents 15 minutes of switching time.
If the tappets are pushed inwards, the connected load is switched off
during that time; if the tappets are pushed outwards, the connected load
is switched on during that time.
Push the tappets inwards (Fig. 9/1) or outwards (Fig. 9/2), according to your desired switching
times.
The set switching times are only executed if the device is switched on (on/off switch set to
ð
ON).
Setting a BOOST period
Personnel:
• User
1. Turn the rotary switch (Fig. 1/3) to the desired BOOST period (15, 30, 60 or 120 minutes).
2. Press the rotary switch to activate the BOOST period.
BOOST LED lights up until the BOOST period is over.
ð
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To end the BOOST period at any time, press the rotary switch again. The
BOOST LED goes out.
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Removal and disposal
Removal
Personnel:
• Qualified electrician
Special tool:
• Flat-head screwdriver
• Phillips screwdriver
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Fig. 10: Opening the housing
1. Undo the safety screw (Fig. 10/1) on the underside of the housing using a flat-head screwdriver.
2. Insert the flat-head screwdriver (Fig. 10/2) into the opening on the underside of the housing, as far
as it will go.
3. Pry off the housing (Fig. 10).
4. Remove the housing base.
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5. Undo all terminals using the Phillips screwdriver.
ð Dispose of the device properly Ä Chapter "Disposal" on page 31.
Disposal
Incorrect disposal presents an environmental danger.
Incorrect disposal could result in environmental dangers.
ENVIRONMENT!
− Electric scrap and electronic components must be disposed of correctly,
i.e. the parts for disposal must be sorted into material groups.
− Disposal must be environmentally responsible and must employ stateof-the-art environmental protection, recycling and disposal technology.
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Grässlin GmbH
Bundesstrasse 36
78112 St. Georgen
GERMANY
Telephone: +49 7724 933-0
Fax: +49 7724 933-240
info@graesslin.de
www.graesslin.de
80.10.1450.7/0217/V02
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