© 08140 isolar2.mon
us.ind
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5
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display
push button
fuse 4A
cable gland with strain relief
front cover
1.1 Mounting
The unit must only be located in dry interior locations. It
is not suitable for installation in hazardous locations and
should not be placed close to any electromagnetic fields. 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.
1. Unscrew the cross-head screw from the cover and
remove it along with the cover from the housing.
2. Mark the upper fastening point on the wall and drill and
fasten the enclosed wall plug and screw leaving the head
protruding.
3. Hang the housing from the upper fastening point and
mark the lower fastening point through the hole in the
terminal box (centres 130 mm). Drill and insert the lower
wall plug.
4. Fasten the housing to the wall with lower fastening screw
and tighten.
1. Installation
WARNING!
Always switch-off power supply and
disconnect the controller from the
mains before opening the housing!
1.2 Electrical connection
The power supply to the controller must be carried out
via an external power switch (last step!) and the supply
voltage must be 115 V~ (50 ... 60 Hz). Flexible cables must
be attached to the housing with the enclosed strain relief
and the corresponding screws.
The controller is equipped with either 1 relay to which
loads
such as pumps, valves, etc. can be connected:
• Relay 1
18 = conductor R1
17 = neutral conductor N
13 = ground clamp
Temperature sensors
(S1 to S4) have to be connected
to the following terminals (either polarity):
1 / 2 = sensor 1 (e.g. sensor collector 1)
3 / 4 = sensor 2 (e.g. sensor tank 1)
5 / 6 = sensor 3 (e.g. tank top sensor)
7 / 8 = sensor 4 (e.g. return temperature sensor)
The
power supply connection
has to be carried out via
the following terminals:
19 = neutral conductor N
20 = conductor L
12 = ground clamp
mains terminals
fuse
load terminals
sensor terminals
fastening
fastening
ground terminals
Electrostatic discharge can lead to damage to elec-
tronic components!
Dangerous voltage!
VBus
®
