ESH150
–3PE~400V
Service manual
42/56
Ref. NR-000144-ENG
Hose heating
WARNING!
Before attempting to fix any kind of malfunction, make sure that no buttons
are lit on the electrical panel, that the power switch is in the OFF position and that the
unit is disconnected from the power supply.
Never open the electrical console when the
unit is connected to the power supply.
Hoses can reach high temperatures. Always wait
until they have cooled down before handling them.
If a fault occurs in the heating system of the hoses, an alarm will be activated, and the number 9
will be shown on the control panel.
Follow the procedure below, in the sequence given, to rectify the problem and avoid expensive
repairs. Check that all automatic switches are in the correct working position before proceeding
to locate faults.
PROBLEMS
SOLUTIONS
The hose is hot but fails to reach the selected temperature.
1-2-7
The hose is not hot; the pushbutton led is lit.
2-3-4-5
Only the sections of the hose closest to the unit are heated.
5
The hose display shows the symbol
(---)
.
6
The automatic switch is triggered.
3
SOLUTIONS
1.
Hose Length
The
easy spray-H
has been designed to work with a maximum hose length of 93 meters (310
ft). A longer length will render the heating capacity less effective. Under extreme ambient
conditions, the hose heating system may be affected and fail to reach the required temperature.
2.
Hose Transformer
The transformer offers the option of connecting to a 40 V output voltage valid for the connection
of hose sections with a total length of up to 45 meters (160 ft), or an output voltage of 75 V, for
connecting hose lengths of over 45 meters (160 ft); connect to one or the other position
depending on the total hose length installed in the machine. If the connection is performed
incorrectly, the hoses will not reach the required temperature.
3.
Automatic Switch
This protects the secondary circuit of the transformer. The switch is located on the front of the
transformer; make sure it is activated, otherwise activate it. Replace it with one of equal
amperage if the switch fails to work correctly.
PRECAUTION!
The replacement of the automatic switch with another of different
characteristics may cause damage to the equipment and put the operator at risk.
