4
display
push button
fuse 4A
cable conduits with strain
relief
cover
1.1 Mounting
The unit must only be installed
•
in a dry interior location
•
in a non-hazardous location
•
away from electromagnetic fields
The controller must additionally be supplied from a double-
pole switch with contact gap of at least 0.12" [3 mm].
Route sensor cables and power supply cables separately.
Î
Unscrew the cross-head screw from the cover and remove
it along with the cover from the housing
Î
Mark the upper fastening point on the wall and drill
Î
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 point through the hole in the
terminal box (centers 5.1" [130 mm])
Î
Drill and insert the lower wall plug
Î
Fasten the housing to the wall with lower fastening screw
and tighten
Î
Complete wiring connections in accordance with terminal
allocations, see chap. 1.2 “Electrical connection”
Î
Place the cover back onto the housing
Î
Fasten the cover by means of the cross-head screw
1. Installation
104 mm
4.1“
130 mm
5.1“
upper fastening
lower fastening
VBus
®
1.2 Electrical connection
power supply terminals
fuse
load terminals
sensor terminal
ground terminal
Note:
The minimum pump speed must be set to 100 % when
auxiliary relays or valves are connected.
WARNING!
Electric shock!
Opening the housing will expose live
parts!
Î
Switch off power supply and disconnect
the device 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!
Connecting the device to the power supply must always be
the last step of the installation!
The power supply to the controller must be carried out via
an external power switch (last step!). The supply voltage
must be 100 ... 240 V~ (50 ... 60 Hz). Flexible cables must be
attached to the housing with the enclosed strain relief and
the corresponding screws.
