Grasslin thermio eco b1, thermio eco b2 Operating Manual
thermio™ eco B1 and B2
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Operating manual
This manual ensures safe and efficient use of the timers “thermio™ eco B1” and “thermio™ eco B2”
(referred to as “device” in the following). This manual is a component of the devices and must remain
accessible at all times for everyone who uses the devices.
Everyone who uses the devices 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................................................................................................... 11
Installation............................................................................................ 16
Electric connection and installation..................................................................................... 16
Other wiring diagrams (B1)................................................................................................. 28
Other wiring diagrams (B2)................................................................................................. 37
Operation............................................................................................. 47
Setting the time.................................................................................................................. 47
Setting the on/off time........................................................................................................ 49
Selecting the operating mode.............................................................................................. 50
Disposal................................................................................................ 53
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Overview
thermio™ eco B1 and mounting plate
Fig. 1: Front and side view
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1 Dial with tappets
2 Channel 1 LED: lights up if channel is active (CH)
3 Mounting plate
4 Channel 1 manual switch (CH)
5 Cover
The “thermio™ eco B1” timer is an analogue single-channel synchronous timer that switches connected loads on and off at defined times.
The “thermio™ eco B1” timer is used to regulate a heating circuit. It can be connected to a water circuit, a heating circuit or a joint water/heating circuit. A joint water/heating circuit is then regulated
jointly. Simultaneous regulation of, for example, central heating and hot water is implemented using just
one switching output.
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thermio™ eco B2 and mounting plate
Fig. 2: Front and side view
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1 Dial with tappets
2 Channel 1 LED: lights up if channel is active (CH)
3 Mounting plate
4 Channel 1 manual switch (CH)
5 Channel 2 manual switch (HW)
6 Cover
7 Channel 2 LED: lights up if channel is active (HW)
The “thermio™ eco B2” timer is an analogue two-channel synchronous timer that switches connected
loads on and off at defined times.
The “thermio™ eco B2” timer is used to regulate two heating circuits. Hot water or heating circuits can
be connected and regulated independently of each other in the OFF and CONST. operating mode. In
TIME operating mode, the two heating circuits are regulated together, according to the setting of the ON
or OFF tappets. Individual regulation of, for example, central heating and hot water is implemented using
two independent switching outputs.
Abbreviations
• CH = Central Heating
• HW = Hot Water
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Manual switch
Fig. 3: Manual switch
The “thermio™ eco B1” single-channel timer has one manual switch and the “thermio™ eco B2” twochannel timer has two manual switches, one for each channel.
In the “thermio™ eco B2” two-channel timer, the two channels can be set independently of each other.
If a channel is switched on, the corresponding LED lights up (Fig. 1/2 and Fig. 2/2, 7).
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Positions Effects
OFF Permanently switched off.
TIMED Automatic mode, switches according to the set-
ting of the ON or OFF tappets.
CONST. Permanently switched on.
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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.
WARNING!
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
avoided.
NOTICE!
This combination of symbol and signal word indicates a potentially dangerous
situation that may result in material damage if the situation is not avoided.
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ENVIRONMENT!
This combination of symbol and signal word indicates potential dangers for
the 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 B1” and “thermio™ eco B2” timers are used exclusively for timer regulation of
heating systems and hot water circuits in a temperature range from -10°C to +50°C. The connected
devices must comply with the limits specified in the technical data.
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Areas of application:
• Boiler
• Combination boiler
• Domestic heating technology for heating and water heating
• Pump-controlled central heating systems with two-way spring-loaded check valves
• Pump-controlled central heating systems with three-way valves
• Gravity heating systems with or without valves
• Gravity heating with room thermostat
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.
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.
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WARNING!
Danger to life due to electric shock!
Improper assembly and installation of the device may result in life-threatening electrical voltages.
− Have assembly and connection performed by a qualified electrician only.
WARNING!
Danger due to insufficient wire cross-section!
If wires with an insufficiently large cross-section are used, short circuits or
fires may occur.
− For the flexible wires, only use terminals with a maximum cross-section
of 4 mm².
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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 is mounted on the wall. 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 connection wire options.
Where there are differences, the corresponding installation type is specified
before the instructions.
WARNING!
Danger to life due to electric shock!
Improper assembly and installation of the device can lead to life-threatening
electrical voltages.
− Have assembly and connection performed by a qualified electrician only.
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NOTICE!
Danger of material damage to wires in the wall!
Selecting the wrong installation position can result in material damage to any
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
• Flat-head screwdriver
• Phillips screwdriver
Prerequisite:
• The terminals for the flexible wires have a maximum cross-section of 4 mm².
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