V
09/2011
Temperature Control Unit 300L(D)/350L(D)
Operating Instructions
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19
WARNING
Danger of magnetic fields in the case of feed pumps with magnetic drive!
Persons with pacemakers and surgically implanted metal parts must remain at
a safe distance or not be required to perform maintenance and repairs on these
pumps!
When assembling the magnetic drive, the motor must be securely retained to
prevent any possibility of fingers being crushed between components due to
the magnetic forces!
All computers, data media, credit cards, electronic watches etc. must be kept at
a safe distance!
Daily Inspections/Maintenance Procedures
•
Check the entire temperature control circuit (temperature control
unit, connecting lines, consumers, etc.) for leakage and repair
any leaks immediately
•
Check filters and clean if necessary
Monthly Inspections/Maintenance Procedures
•
Inspect the cooling air inlet port of the pump motor to ensure that
it is free of obstructions. Clean the port by blowing compressed
air from inside to outside
•
Clean the level switches
•
Check filters and clean if necessary
Semi-annual Inspections/Maintenance Procedures
•
Inspect the electrical equipment such as grounding wires, secure
connection of power supply cord and connecting lines, etc.
•
Dismantle solenoid valves (see maintenance section), inspect
membranes for lime deposits and damage. Check the core and
spring bolt for free movement. Clean or replace parts if neces-
sary
•
Descale cooler - exercise caution when tightening the screwed
connections on the heat exchanger (max. 170 Nm)!
•
Check pump capacity (the flow rate and final pressure must
comply with the pump characteristic)
Annual Inspections/Maintenance Procedures
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Replace the heat transfer medium (water and corrosion inhibitor)
after approx. 2000 working hours (equivalent to approx. one year
in single-shift operation). In the event of poor water quality or
multi-shift operation (contamination, etc.), the medium must be
replaced correspondingly earlier
