Instructions for Use and Installation Helo Steam Pro
Electrical connections
The sauna heater must be connected to the mains by a qualified electrician and in compliance with current
regulations.
The steam generator should be connected with a semi-permanent connection. Use H07RN-F (60245 IEC 66) cables
or a corresponding type.
NOTE: The electric supply must be fitted with a safety switch before the steam generator so that electricity
can be switched off from all poles.
Output
Connection cable
H07RN-F/60245
IEC 66
kW
400 – 415V 3N~
9.5
5 x 2.5
12
14
16
Remote control
The steam generator can be remotely controlled by connecting a closed contactor, which can be pulse triggered, to
connectors 3 and 4 of a RJ10 circuit board. The recommended cable size is AWG 24 or 26. The maximum length of
an AWG 24 cable is 50 m when using a premium controller, and 200 m when using a Trend controller.
The maximum length of an AWG 26 cable is 30 m when using a Premium controller, and 130 m when using a Trend
controller.
Circuit board RJ 10 connectors
NOTE: Incorrect connections may break a circuit board.
Additional sensor (NTC)
Pin 1
Pin 2
NTC 10
kOhm
Pin 3
NTC 10
kOhm
Pin 4
Sensor (Sec/NTC)
Pin 1
End stop
Pin 2
NTC 10
kOhm
Pin 3
NTC 10
kOhm
Pin 4
End stop
Fuse
cable H07RN-
F/60245 IEC 66
mm²
A
3 x 16
5 x 6
3 x 25
5 x 6
3 x 25
5 x 6
3 x 25
Pin layout of a RJ10 circuit board connector
Remote control switch (Ext switch)
Pin 1
3.3 V
Pin 2
CPU
Pin 3
Pin 4
4 units of RS 485
GND
Pin 1
3.3 V
Pin 2
CPU
Pin 3
10V
Pin 4
Connection
Fuse
mm²
A
230V 3~
4 x 6
3 x 25
4 x 10
3 x 35
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To switch
GND
To switch
12 VDC
Additional relay board (Add-on)
Serial
A
RJ45 cable from a relay board to
traffic
Serial
B
traffic
Power
12 VDC
supply
Power
GND
supply
Connection cable
Fuse
H07RN-F/60245 IEC
66
mm²
230–240V 1N~/ 2~
---------
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---------
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---------
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Pin layout of a RJ10
connector
Door switch
Pin 1
Pin 2
Alarm LED
GND
Pin 3
Door
GND
switch
Pin 4
Door
12 VDC
switch
an additional relay board.
9
A