5
Installation
Indications,
functions and options
Operation and function
en
2 Installation
2.1 Mounting
WARNING!
Electric shock!
Upon opening the housing, live parts are exposed!
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Always disconnect the device from power supply
before opening the housing!
Note:
Strong electromagnetic fields can impair the function of the controller.
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Make sure the controller as well as the system are not exposed to
strong electromagnetic fields.
The unit must only be located in dry interior rooms.
The controller must additionally be supplied from a double pole switch with contact
gap of at least 3 mm.
Please pay attention to separate routing of sensor cables and mains cables.
In order to mount the device to the wall, carry out the following steps:
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Unscrew the crosshead screw from the cover and remove it along with the
cover from the housing.
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Mark the upper fastening point on the wall. Drill and fasten the enclosed wall
plug and screw leaving the head protruding.
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Hang the housing from the upper fastening point and mark the lower fastening
point (centres 130 mm).
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Insert lower wall plug.
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Fasten the housing to the wall with the lower fastening screw and tighten.
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Carry out the electrical wiring in accordance with the terminal allocation (see
chapter 2.2).
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Put the cover on the housing.
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Attach with the fastening screw.
2.2 Electrical connection
WARNING!
Electric shock!
Upon opening the housing, live parts are exposed!
Î
Always disconnect the device from power supply
before opening the housing!
ATTENTION!
ESD damage!
Electrostatic discharge can lead to damage to electronic com-
ponents!
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Take care to discharge properly before touching the
inside of the device! To do so, touch a grounded sur-
face such as a radiator or tap!
Note:
Connecting the device to the power supply must always be the last step
of the installation!
The controller is supplied with power via a mains cable. The power supply of the
device must be 100 … 240 V~ (50 … 60 Hz).
The controller is equipped with 4 relays in total, to which loads such as pumps,
valves, etc. can be connected:
• Relays 1 … 3 are semiconductor relays:
Conductor R1 … R3
Neutral conductor N
Protective conductor
⏚
• Relay 4 is a potential-free extra-low voltage relay
Depending on the product version, mains cables and sensor cables are already con-
nected to the device. If that is not the case, please proceed as follows:
Connect the temperature sensors (S1 to S3) to the following terminals with
either polarity:
S1 = Sensor 1 (outdoor temperature sensor)
S2 = Sensor 2 (heating circuit flow)
S3 = Sensor 3 (e. g. return sensor)
Connect the remote control (if used in the system selected) to the S3 / RTA12
input with either polarity.
Connect the room thermostat to the TA input with either polarity.
Connect the dew point switch (if used in the system selected) to the S5 / TS10
input with either polarity.
