KRAL KV - Page 41

15 Accessories
15.1 Heating
Installing the electrical heating system
Personnel qualification: o Electrician
Personal protective equipment: o Work clothing
o Protective gloves
o Safety boots
DANGER
Magnetic field.
Risk of death for persons with cardiac pacemaker, metallic implant or neurostimulator.
► Under no circumstances may persons with cardiac pacemakers, metallic implant or
neurostimulator perform work on the pump/pump unit.
ATTENTION
Damage to the electrical heating system through leakage currents or flashovers at the emission
point of the connecting cable.
► Protect the area of the connecting head against liquid and pasty liquids (lubricants, oil, plastics,
etc.) as well as their vapours.
Requirement:
ü Area of the connecting head protected against liquid and pasty liquids (lubricants, oil, plastics, etc.)
as well as their vapours.
ü Supply lines protected against mechanical vibrations in the area of the emission from the heating
element. Any vapours arising have to escape freely.
ü Heating element absolutely dry.
072
481
1
Fig.12: Installation of electrical heating system
072 Heating cover
481 Heating element
1 Connecting cable
1. Remove the socket screws and rating plate at the end cover of the pump.
2. Mount the heating cover072 to the end cover using the supplied socket screws.
3. Screw the heating element481 into the heating cover072.
4. Mount the rating plate on the heating cover072.
Connecting the electrical heating system
DANGER
Risk of death resulting from electric shock.
► Ensure that the electrical power supply is de-energized and is secured against being switched
back on.
► Observe the operating instructions of the electrical components.
DANGER
Risk of injury through emitted pumped liquid.
The pump housing may burst through heat expansion of the pumped liquid.
► Open all the valves during the heating process.
Connect the connecting cable of the heating element.
Operating instructions
OIK 09en-GB Edition 2019-11
41