Electrical Installation [Wiring Diagram]; Electrical Connection Operation Without Modbus Control - Schwank infraSchwank D Series Technical Manual

Electrical installation
[wiring diagram]
Danger of electric shock!
Electric shocks are highly dangerous!
Working at the electrical equipment of
the appliance is only allowed by
professional personnel observing the
current IEE regulations.
Isolate the electrical supply while
working at the electrical equipment of
the appliance and safeguard the
appliance against unintentional
connection to the circuit.
The gas supply and electrical cable
must be situated on the outside of the
radiation and combustion heat. Only use
heat-resistant cables near the tubes.
The power supply for the heater must be
flexible connected with Ölflex- or
silicone cable.
Electrical connection
Operation without MODBUS control
1-stage operation
 Route a flexible 3-wire electrical connection
cable [max. 3 x1.5 mm
kit to the four-pin plug and connect the cable
according to connecting scheme [Fig 34].
 Connect 4-pin GDM socket with housing plug on
burner control unit IC 4000/1 of the burner kit.
 The power supply for the heater must be flexible
with maximal wire cross-section of 3x 1.5 mm
Ölflex- or silicone cable
 In order to disconnect burner kit from the
electrical supply pull the plug out from IC 4000/1.

The 4-pin GDM plug for the power supply
burner kit is included in delivery of the
kit.
infraSchwank D / calorSchwank D shape U

] for power supply burner
2
2
Modulating operation
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 In the standard case 230 VAC error signal is
given via contact 3 at 4-pin plug.
For modulating operation without MODBUS
communication the modulation signal must
now be connected to contact 3 of 4-pin plug
[Fig. 34].
 The wiring between the plug socket and board
is already factory-made. For modulating
operation without MODBUS communication the
red cable on board IC 4000/1 has to be
changed from LO [lock out] to M [modulating]!
 Parameter value PP01 of burner control unit
IC 4000/1 is 1 as factory setting [Modbus
communication]. Therefore parameter value
PP01 must be set as 0 for modulating operation
without MODBUS communication [for
procedure, see page 45].
 Heater must be connected in such a way that it
always starts at full load. This is ensured by
central control unit SchwankControl Touch or
manual control unit moduSchwank. After a
time delay of at least 2 minutes you can switch
to the partial load stage.
 For necessary settings SchwankControl Touch
without MODBUS communication please refer
manual SchwankControl Touch.

Make sure that the polarity of power
supply is correct. If polarity incorrect
control unit IC 4000/1 will not detect the

modulation signal!
Figures 36 and 37 show a complete wiring scheme
without MODBUS communication [relay control]
between the central control unit SchwankControl
Touch and burner kits with burner control IC 4000/1.
Figure 39 shows a complete wiring scheme
between the alternative control unit SRT-1 and
burner kits with IC 4000/1 burner control unit.
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