© 08284 SCU224.monus.indd
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SCU224
power connections
Relay connections
Sensor connections
ground connections
VBus
®
display
pushbutton
can fuse 4A
cable conduits with strain
relief
cover
12
S1 S2 S3
3456
Temp. Sensor Pt1000
LNR1NR2N
201918171615
S4
78
141312
DE - 45527 Hattingen
DeltaSol BS Plus
2 (1) A 115
2
V~
(1) A 115V~
R1
R2
T4A
115 V~
CU 72060171 01
UL 60730-1A:2002
CSA E60730.1:2002
VBus
910
1.1 Mounting
1. Installation
Warning!
Switch-off power supply before
opening the housing.
1.2 Electrical connection
fuse
fastening
fixing
Electrostatic discharge can lead to damages of elec-
tronic components!
Dangerous voltage on contact!
The unit must only be located internally. It is not suitable
for installation in hazardous locations and should not be
sited near to any electromagnetic field. The controller must
additionally be equipped with an all-polar gap of at least 3 mm
or with a gap according to the valid installaton regulations,
e.g. LS-switches or fuses. Please ensure sensor cables and
AC power supply are separated.
1. Unscrew the cross-recessed screw of the cover and
remove it from the housing.
2. Mark the upper fastening point on the wall and premount
the enclosed plug and screw.
3. Hang up the housing at the upper fastening point and
mark the lower fastening point on the subsurface (hole
depth 1/2"). Install the plug in the lower hole.
4. Fasten the housing at the top and attach it with the lower
fastening screw.
The power supply to the controller must only be made by
an external power supply switch (last step of installation!)
and the line voltage must be 115 Volt (60 Hz). Flexible
lines are to be fixed at the housing by enclosed strain relief
supports and screws.
The version the controller is equipped with 2 output relays
to which the consumers e.g. pumps, valves etc. can be
connected:
• Relay 1
18 = line power conductor R1
17 = neutral conductor N
13 = ground clamp
• Relay 2
16 = line power conductor R2
15 = neutral conductor N
14 = ground clamp
The temperature sensors (S1 up to S4) will be con-
nected to the following terminals independently of the
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. Sensor collector 2)
7 / 8 = Sensor 4 (e.g. Sensor tank 2)
The 115V power supply is connected to:
19 = neutral conductor N
20 = conductor L
12 = ground clamp
(52 Seiten)
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