Rendamax E8.1121, Operating Instructions Manual, Page: 31 / 44

Operation
Installation and Start-up
31
Installation
Assembly / Dismantling
Sketch showing basic mode of
operation:
A Controller, side view, cutaway view
B Control
panel plate
C Mounting clamp
D Unlocking holes (see Chapter
Changing
set values)
E Sharp-pointed tool
Installing the controller:
1. Set the mounting clamp to the wall
thickness of the control panel (at
the left and right-hand side of the
unit):
a) Pull the mounting clamp at the
low away from the controller
wall (toothing).
b) In this condition, slide the
mounting clamp down or up
until the distance from the
edge of the unit corresponds
to the thickness of the control
panel wall.
Detent position 1
≅
0.5-1.0 mm
wall thickness
Detent position 5
≅
5.0 mm
wall thickness
c) Press the mounting clamp
against the controller wall at
the low.
2. Press the controller into the control
panel recess and check that it is
firmly secure. If the controller
wobbles: Remove the controller
and move the mounting clamps up.
Removing the controller:
E
Disconnect the unit from the power
supply before removing it.
d) Insert a sharp-pointed tool at
an angle with respect to the
exterior wall into one of the
unlocking holes (the tool must
be slid between mounting
clamp and control panel wall).
e) Lever the tool with respect to
the unit exterior wall. This
causes the mounting clamp to
release the control panel wall.
Raise the unit slightly at the
corresponding side and repeat the
procedure on the other side of the unit.
The unit can now be removed.
Connecting instructions
E
The controller is designed for an
operating current of 230 V AC at
50 Hz. The burner contact is
potential-free and must always be
connected in series with the
mechanical boiler thermostat
(if present).
E
Attention: Bus lines and sensor
lines must be laid separately, away
from mains cables!
!
After connecting or modifying the
connections of sensors and remote
controls the controller must be
briefly switched off (mains switch/
fuse). The function of the controller
is reconfigured in accordance with
the connected sensors the next
time the controller is switched on.
Note for installation in connection
with digital room device
When installing a digital room device,
the heating circuit-specific set values
are adjusted at the room device. These
values are automatically faded out
inside the controller.
!
If during operation the digital room
device is separated from the BUS
for a longer time period (>5min),
the heating controller will continue
to work with its own set values.
In order to avoid damages in case of
errors - for deviations from relevant
set values (such as maximum flow
temperature for floor heaters) - we
suggest the following procedure:
1. Installing the new heating controller
2. Set all values for heating controller
3. Install one digital room device
4. Set all values for digital room
device