2 Installation
2.1 Mounting
WARNING!
Electric shock!
Upon opening the housing, live parts are exposed!
Î Always disconnect the controller from power supply
before opening the housing!
Note
Strong electromagnetic elds can impair the function of the controller.
Î Make sure the controller as well as the system are not exposed to
strong electromagnetic elds.
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:
Î Unscrew the crosshead screw from the cover and remove it along with the
cover from the housing.
Î Mark the upper fastening point on the wall. Drill and fasten the enclosed wall
plug and screw leaving the head protruding.
Î Hang the housing from the upper fastening point and mark the lower fastening
points (centres 130 mm).
Î Insert lower wall plugs.
Î Fasten the housing to the wall with the lower fastening screw and tighten.
Î Carry out the electrical wiring in accordance with the terminal allocation (see
chap. 2.2).
Î Put the cover on the housing.
Î Attach with the fastening screw.
2.2 Electrical connection
WARNING!
Electric shock!
Upon opening the housing, live parts are exposed!
Î Always disconnect the controller from power supply
before opening the housing!
ATTENTION!
ESD damage!
Electrostatic discharge can lead to damage to electronic
components!
Î Take care to discharge properly before touching the
inside of the device! To do so, touch a grounded surface
such as a radiator or tap!
Note
Connecting the device to the power supply must always be the last step
of the installation!
Note
The pump speed must be set to 100 % when auxiliary relays or valves are
connected.
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 3 relays in total to which loads such as pumps,
valves, etc. can be connected:
• Relays 1 … 2 are semiconductor relays, designed for pump speed control:
Conductor R1 … R2
Neutral conductor N
Protective conductor ⏚
• Relay 4 is a potential-free low voltage relay
Note
The terminal R3 has no function!
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 S5) to the corresponding terminals
with either polarity:
S1 = Sensor 1 (collector sensor )
S2 = Sensor 2 (store sensor base)
S3 = Sensor 3 (e. g. store sensor top)
S4 = Sensor 4 (e. g. store sensor store 2)
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