Nordmann AT4 D Series, Mounting Instructions

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Temperature control and monitoring (A5)
– Temperature sensor
The temperature sensor is connected to the terminals “TEMP IN” (+) and
“GND” (–) of terminal bloc “X31” on the steam bath board. The steam
bath board is ready for the connection of these types of temperature
sensors, hence not further adjustments are required.
The temperature sensor must be installed in a appropriate location inside
the steam bath (away from the steam exit).
Please refer the separate installation instructions for proper location and
connection of the temperature sensor.
– Excess temperature switch
An excess temperature switch for the monitoring of the maximum steam
bath temperature is connected to the terminals “24V” and “TEMP S” of
terminal bloc “X31” on the steam bath board.
If, for whatever reason, no excess temperature switch is connected,
the terminals “24V” and “TEMP S” must be short circuited using a cable
bridge “J3”.
CAUTION!
Do not apply any extraneous voltage to the terminals “24V” and
“TEMP S”.
The cross­section of the connecting cable must comply with the applicable
local regulations.
We recommend the use of a shielded cable for the connection of the tem­
perature sensor and the excess temperature switch.
–
Wiring diagram temperature sensor KTY with integrated excess
temperature switch (accessory)
External temperature signal 0-10V (A6)
Alternatively to the temperature sensor KTY an external 0­10V signal from
a building management system or from a separate temperature sensor can
be used to control the steam bath temperature. The 0­10 V signal is con­
nected to the terminals “IN” (+) and “GND” (–) of terminal bloc “X10” on the
power board. The configuration of the control signal is made via the control
software of the Nordmann AT4 D.
4.8 mm 2.8 mm
X31
TEMP
S
24V GND TEMP
IN
24V LIGHT
2
LIGHT
1
BA
TH I/O
DOOR
1 2 3 4 5 6 7 8 9
A5 (KTY)
AT4 D
ext.