Rational LM1 Series Original Installation Manual page 44

6 | Electrical connection
Wire colour
Yellow/green
Blue
Brown, grey or black
Residual current circuit breaker
All units are generally equipped with a protective conductor terminal. In ac-
cordance with national standards and regulations, an RCD (residual current
device) must be incorporated in the installation of the unit.
Unit size 6-1/1 GN up to 20-2/1 GN
Connect the unit to a type B (RCD type B) residual current circuit breaker.
Unit size 6-2/3 GN
Voltages with neutral conductor (NAC): Connect the unit to a residual current
device type F (RCD type F).
Voltages without neutral conductor (AC): Connect the unit to a type B (RCD
type B) residual current circuit breaker.
Notes for standalone units
Maximum connection impedance at the grid connection point is 0.09 Ω.
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The cross-sections of the connection lines depend on current consumption
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and local regulations.
Notes for UltraVent/UltraVent Plus condensation hoods
For units with a condensation hood, both appliances must be disconnected
from the mains prior to servicing work.
Before you disconnect the power cable from the mains or reconnect it to the
mains, make sure that the unit is switched off to prevent the condensation
hood from running.
Notes for 6-2/3 GN units with a UltraVent/UltraVent Plus condensation hood
The condensation hood be connected to an electrical supply in line with
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applicable standards (VDE and UL/CSA NEC regulations).
The condensation hood is connected to the power supply with a perman-
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ent connection. The fixed connection with an all-pole disconnection device
with at least a 3 mm [1/8 inch] contact gap must be accessible on site.
If the condensation hood is connected with a power cable, the power cord
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must always be accessible.
The condensation hood must be fused with a maximum of 16 A by the
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customer.
The condensation hood must be fused with a maximum of 15 A by the
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customer.
The condensation hood is equipped with an approx. 2 m [approx. 6 1/2
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inches] long connection cable without a plug.
If the connecting cable is replaced, use a H05 RN-F 3x1.5 mm
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cable at the very least. The mains power cable may only be replaced by
qualified personnel authorised by the manufacturer.
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Wire function
Protective conductor
Neutral conductor (neutral wire)
Phase L1, L2, L3
80.06.070_iCombi Pro-iCombi Classic_IM_V01_en-GB
2
quality