V
11/2014
Temperature Control Unit 90smart/150smart
Operating Instructions
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procedures must be carried out at correspondingly shorter intervals. De-
fective parts must be repaired or replaced immediately.
Temperature control unit inspections and maintenance proce-
dures must be carried out by an expert
Maintenance procedures involving electrical equipment may only
be carried out by qualified electricians
The RT70 control system unit may only be replaced when the
mains plug is unplugged
The safety valve should be vented from time to time by brief acti-
vation (blow off)
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 should 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)
