Installation 43
Cod.nº 429043
Rev. No. 21/0519
3.5.1. External dosing electrical connection
3.5.1.a. Steps prior to connection:
• Disconnect and mechanically lock the external automatic switch.
• Open the machine’s terminal box.
• On the entry hole of the external dosing electrical supply (Ed identified in figure 2) install a lock mechanism
(not supplied with the washer) to fasten the cable or cable pipe protector, depending on the cable and pipe
protector used. Refer to dimensions and connection diameter in INSTALLATION SPECS, section 1.4.
• In models HS-6024/HS-6028/HS-6032 and EH060/EH070/EH080, secure the conductor using the cable ties
on the outside of the electrical cabinet, as shown in Fig. 3.12/A.
Fig. 3.12
3.5.1.b. Signal conductor
• Recommended section of signal wire: 0.75/1mm2 (#16-18 AWG), 400V.
• If using single-wire conductors, these must be encased within a safety conduit.
• The conductor must be affixed to the inlet opening of the machine using a secure connection appropriate for
the type of conductor.
• The conductor must be protected against traction, crushing and friction.
• Additional specifications for the conductor: must comply with the statutory regulations of the country in which
it is to be installed.
3.5.1.c. Dosing equipment connection
POTENTIAL FREE RELAY CONTACTS (Fig. 3.13).
Origin of the dosing signals: from a source EXTERNAL to the
washer (usually from the external dosing equipment).
The relay contacts act as dry contacts (not powered).
Dosing signals connection on X6 terminal strip
• Follow the instructions on sections 3.5.1.a & b.
• Connect in the order indicated in the following chart.
Fig. 3.13
Softener dosing Dosing 4
Dosing equipment COMMON wire
The dosing signals ARE NOT PROTECTED by the
washer fuses.
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