Som 6 si, Installation, 1 mounting – STIEBEL ELTRON SOM 6 SI User Manual

Page 4: 2 electrical wiring

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SOM 6 SI

© 06184 som_6_si.monen.ind

d

|

4

display

pushbutton

can fuse 4A

cable conduits with strain
relief

cover

1

2

S1

S2

S3

3

4

5

6

Temp. Sensor Pt1000

L

N

R1

N

20

19

18

17

14

13

12

2 (1) A 115 V~

T4A

US-West Hatfield, MA 01088

SOM 6 SI

Inc.

1.1 Mounting

The unit is designed for indoor installation only. It is not
suitable for installation in hazardous locations and should not
be sited near to any electromagnetic field. The controller
must installed in accordance with all electrical regulations.
These regulations vary from region to region. Please contact
the appropriate agency in your area if unclear on this.
Wall Mounting Instructions
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 mount

the enclosed dowel and screw.

3. Hang up the housing at the upper fastening point and

mark the lower fastening point on the wall. The distance
between the 2 mounting holes is 130 mm.

4. Fasten the housing at its lower point..

1. Installation

Warning!
Switch-off power supply before
opening the housing.

1.2 Electrical wiring

The power supply to the controller must only be made by
an external power supply switch and the line voltage must
be 120 VAC (50/60 Hz). Flexible lines are to be fixed at the
housing by enclosed strain relief supports and screws.
The SOM 6 controller is equipped with 1 relay which is

usually connected to the solar loop’s circulator pump.
• Relay 1

18 = Conductor R1

17 = Neutral conductor N

13 = Earth ground

The temperature sensors (S1 to S4) are to be connected

to the following terminals (not polarity sensitive):
1 / 2 = Sensor 1 (Collector sensor)
3 / 4 = Sensor 2 (Storage sensor)

5 / 6 = Sensor 3 (For monitoring only)

7 / 8 = Sensor 4 (For monitoring or Energy Production

Measurement)

The power supply is to be connected to the following

terminals:

19 = neutral conductor N
20 = line conductor L
12 = ground terminal

Line voltage input

fuse

Relay output

Sensor clamps

Upper fastening hole

Lower fastening hole

Earth ground

Electrostatic discharge can lead to damage to
electronic components!

Hazardous voltage present!

S4

7 8

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