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54208003-13
Mains, control and interconnecting cables must be supplied and fitted by the installer. Cables
must be size compatible with the recommended fuse for a given system.
An isolator switch should be positioned within easy reach of the indoor unit. The
equipment must be earthed.
Cable glands for use with stranded cables are supplied and should be used to secure all incoming/outgoing cables.
Installers must supply a method of securing any solid sheathed cables.
Electromechanical Systems:
Systems including an electromechanical indoor unit require a supply to the condensing unit with connecting cables
run to the indoor unit.
Electronic Systems:
It is recommended that systems with electronic indoor units ('L' specification) have a supply taken to the
DCU+/DHPU(L) and a separate supply taken to the indoor unit, which in many cases can be from a domestic 13
Amp socket.
OUTDOOR UNIT WIRING
Cable entry for the outdoor unit electrics is through the cabinet to a terminal block. Ensure all
connections are secure and both units are earthed.
Interconnecting wiring diagram DCU+:
1Ø DCU+
INDOOR
3
C
3Ø
DCU+
INDOOR
3
C
ELECTRICAL