Nordmann AT4 D Series, Инструкция по монтажу

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Control voltage supply
CAUTION!
– Before connecting, ensure that the mains voltage corresponds with
the control voltage of the unit (230 V/1 50…60 Hz).
– The steam generator must only be connected to a mains supply with
a protective conductor .
The connection to the control voltage is made in accordance with the wir­
ing diagram, to the terminal block “XE3” in the control compartment. The
customer is to install a service switch “Q9” in the supply line (all pole dis­
connecting device with a minimum contact opening of 3 mm) and an “F9”
fuse (max. 10 A slow acting) (these are both essential requirements).
The cross­section of the mains cable must comply with the applicable local
regulations (minimum of 1.5 mm
2
).
Remote operating and fault indication H1 (Option “RFI”)
The remote operating and fault indicators must be connected to the respec­
tive potential­free relay contacts of the remote indicator board according to
the wiring diagram:
– “Error”:
This relay is activated if an error is present.
– “Service”: This relay is activated when the set service interval has
expired.
– “Steam”: This relay closes as soon as the unit produces steam.
– “Unit On”: This relay closes as soon as the unit is switched on via the
unit switch.
The maximum contact loading is 250V/8A .
Appropriate suppressor modules are to be used for the switching of relays
and miniature contactors.
Remote temperature indication (U1)
Analogue output 0...10 V (0...100 °C) for remote temperature indication.
Analogue output flap actuator U2
Analogue output 0...10V (open...closed) for the control of the flap actuator.
The flap actuator is connected to the appropriate terminals on the remote
operating and fault indication board according to the wiring diagram. The
output signal is always active.
The cross­section of the connecting cable must comply with the applicable
local regulations.