14
Resistance control and replacing of heating element
· Controll the resistant with the multimeter.
· The heating element for 50,100 and 150 litre boiling pans
have an rated effect of 7,5 kW, which is equivalent to ap-
prox. 21 Ohms per each heating loop at 3x400V/3x230V
and 25 Ohms per each heating loop at 3x440V connected
voltage.
· The heatng element for 200 and 300 litre boiling pans have
an rated effect of 12,5 kW, which is equivalent to approx. 13
Ohms per each heating loop at 3x400V or 3x230V and 15
Ohms per each heating loop at 3x440V connected voltage.
· When fitting 50,100 and 150 litres heating element the
screws have to be tightened that the whole surface of the
element flange touches the vessel. It is important to ensure
that the O-ring does not leak.
The O-ring must be replaced each time the heating ele-
ments has been removed or replaced.
NOTE: It is important that the heating elements are mounted
as shown in the pictures beside. See Fig. 9A-9C.
· When fitting 200 or 300 litres heating element the screws
should be set to a torque of 20 Nm. It is important to
ensure that the packing does not leak. The packing should
be compressed by about 30% of its thickness: about 1 mm.
Fitting the food temperature sensor PT1000
The food temperature sensor is fitted towards the inner
vessel. To obtain a god transmission level of the food
temperature, silicon lubricant is pressed between the sensor
and the inner vessel. The sensor has fine threads and has
to be mounted with care. If the sensor is tightened too
hard it might cause damage the inner vessel by making a
buckle in the metal sheet. the sensor is fitted with Loctite
threadlocker type 542 and Activator type 7240.
Calibrate allways after changing sensors.(se sida 9)
Connecting of screened cable
Note! Generally when connecting screened cables, it is im-
portant that the connection performs correctly. The EMC
approvment demands such performance.
50 litre boiling pan fig. 9A
100 litre boiling pan fig. 9B
150 litre boiling pan fig. 9C
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