Technical Information

Electrical wiring
TCGB0079 rev.0 - 01/2013
132
10.1 General information
10.1.1 General notes
C A U T I O N
• Before anyelectricalwiringwork orregularinspections,switch offthe mainpowersupplyswitches ofthe
indoorandoutdoorunits.Waitthreeminutesbeforestartinginstallationormaintenancework.
• Makesurethattheindoorandoutdoorarecompletelystoppedbeforestartingworkontheelectricalwiringor
regularinspections.
• Protectcables,drainhose,electricparts,etc.fromrodentsandinsects;otherwisethesemightdamageunpro-
tectedcomponentsand,intheworstcase,causeare.
• Donotallowcablestocomeintocontactwiththerefrigerantpipes,metaledges,printedcircuitboards(PCB)
ortheelectricpartsinsidetheunit;thecablesmaybedamagedand,intheworstcase,causeare.
• Firmlysecurethecablesinsidetheindoorunitwithplasticanges.
D A N G E R
• Useanearthleakagebreakerwithmediumsensitivity,andanactivationspeedof0.1secorless.Ifthisisnot
tted,thereisariskofelectricshockand/orre.
• Installanearthleakagebreaker,fuseandcircuitbreakerforeachoutdoorunitpowerline.Notttingitmay
causeanelectricshockorre.
N O T E
• Fixtherubberbusheswithadhesivewhentheoutdoorunitductsarenotused.
10.1.2 General verications
1 Make sure the electric components supplied by the installer (main power switches, circuit breakers, wires, connectors
and connection terminals) have been selected correctly in line with the electrical data given.
a. The electricity supply to the unit should be via an exclusive power control switch and protective circuit breaker, certi-
ed and installed in accordance with local or national safety regulations.
b. The electricity supply for the outdoor and indoor units should be separate. Connect the voltage supply wiring for
each group of indoor units to the same outdoor unit.
2 Check that the supply voltage is between 90 and 110% of the rated voltage. Where the voltage capacity is too low, it
will not be possible to start the system due to the drop in voltage.
3 During the preliminary preparation work of the electricity supply line for the unit, the provisions in local and national
legislation must never be violated.
4 Check that the earth cable is correctly connected.
Electromagnetic compatibility
Following Council Directive 89/336/EEC and amendments 92/31/EEC and 93/68/EEC, relating to electromagnetic compat-
ibility, the following table indicates maximum permissible system impedance Z
max
at the interface point of the user’s power
supply, in accordance with EN61000-3-11.
TCGB0079_rev0_11-2012.indb 132 29/01/2013 14:27:36