V-09 05/2014 - 16 -
Electrical connection
Common information
• During installation check all electrical connections
especially the power terminals for tight fit.
• Follow the installation instructions and the infor-
mation on the rating plate when connecting the
unit
• Comply with all local regulations and standards,
which must conform to national, state and local
code requirements.
• We recommend an independent fused power
supply line for each appliance. Use of a common
trip 2 pole or 3 pole circuit breaker or 3 pole fuse
box with common trip is recommended to ensure
safety.
• The appliance is equipped with a motor with an
integrated frequency converter
• Electric units 10x2/1, 20x1/1 and 20x2/1GN:
The maximum electrical impedance at the mains
connection point is 0,09 ohm
• Units must be connected to an earth leakage
circuit breaker. Consult with the NEC code for
specific values according to KW of attached load
for selection
• Note: connection to a residential type GFI of insuf-
ficient leakage current is not advisable, random
and or nuisance trips of the breaker could result
• On-site installation: provide accessible all-pole
disconnection device with a minimum of a 3 mm
contact gap
• Use copper wire only for power supply connec-
tions
• The circuit diagram is located on the inner side of
the left side panel.
• Special voltage available on request.
• See chart on page 27 for wire sizing.
• Applicable standards: NFPA 70/NEC, CSA C22.2
• For electrical connection data, see pages 33/34:
• Before pulling out mains plug or reconnecting it
again be sure the unit is switched off.
For appliance connections, precise dimensions and
connection points, see pages 30 and following.
Power cable :
• The exchange of the power cable may only be
carried out by the service agents, qualified electri-
cians or similar qualified personal
Electrical units
• For connection use power cord NEC UL standard
• Connect the supply as follows:
Grey terminal:
L1, L2, L3 (non-phase-sequence-dependent)
Yellow/green terminal: Earth connection
Gas units:
• In case the power cable has to be exchanged
make sure to use one, that matches your local
standard
5-15P 120V IP for 61/101/201
6-15P 208/240V IP for 62/102/202
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