Thermal oil is combustible under certain conditions. Therefore:
– Never operate the unit without side panels and housing.
– Never operate the unit in areas subject to explosion.
– Keep sprays and cleansers containing solvents away from the unit.
– Follow all local regulations when setting up the unit.
– Do not place the unit in the vicinity of heat sources (e.g. oven in diecasting plants).
– Keep thermal insulation clean at all times. Insulation soaked in thermal oil is a fire hazard.
– Immediately repair any leaks in the temperature control circuit (unit, connection lines,
consumer, etc.).
Burning thermal oil can be extinguished using:
– AFFF spray foam fire extinguishers. Powder fire extinguishers (avoid using near dust-
sensitive equipment, e.g. process controllers, computers, etc.).
– CO
fire extinguishers (Backflash hazard, suitable only under certain conditions).
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– The most suitable fire extinguisher shall be provided by the operator under consideration of
the equipment found in the room and all application safety regulations.
– Injury hazard from escaping hot thermal oil.
– Depending on the outlet temperature, the unit may need to be cooled down before it can be
switched off and the hoses detached. To initiate the switch-off process, press the ON/OFF
key. The pump will continue to run. The unit will cool until the fluid reaches the programmed
run-out temperature (factory setting 80 °C). The pump and control system will then shut off.
Check to see that the pump has stopped running. The display will indicate OFF.
•
In equipment in which a malfunction of the temperature control system could be hazardous to
operating personnel or lead to destruction of the equipment, independent monitoring equipment to
monitor the process and switch the equipment off safely must be used.
•
These Operating Instructions belong in the hands of the set-up and operating personnel.
•
Please ensure that the Operating Instructions are read. You will thereby save yourself unnecessary
costs and problems during set-up as well as prevent downtime.
2.2 Consumer checks
Before connecting the hoses between the consumer and the temperature control unit, the following checks shall
be performed on the consumer:
1 Check conduits for blockage.
2 Remove fluid and dirt residue using compressed air. Foreign bodies such as splinters can damage the pump.
3 Remove rust, scaling and oil residue, as these strongly restrict heat transfer between the consumer and the
heat transfer fluid and increase the pressure drop in the consumer. The Regloplas descaling unit, REG, can be
used for descaling (→ "Regloplas Temperature Control Units" brochure, "REG" Data sheet).
4 Oil residue can be removed using the SR80 system cleaner (→ "Regloplas Temperature Control Units"
brochure, "SR80" Data sheet).
5 When switching between water or steam to thermal oil, all water residue in the consumer
and in the connection hoses must be removed completely: Accident hazard during heat-up
due to the pressure of the steam thus created. Proceed as described in Section 4.3.
2.3 Water quality
To prevent damage to the temperature control unit cooler and to the attached consumer, the water used must
meet the following requirements:
Total hardness
4–18 °d
pH value
7–9 KKG*
Conductance max. 1000 µS/cm
*KKG = Lime/carbon dioxide balance
We strongly recommend the addition of RK93 corrosion inhibitor (→ "Regloplas-Temperature Control Units",
RK93 Data sheet).
2.4 Connection hoses
See also "Guidelines for connecting hoses".
–
Outlet and inlet: Use only pressure- and temperature-resistant hoses and couplings (→ Regloplas
Temperature Control Units, Section "Accessories").
–
The connection hoses shall be laid out such that they are protected from accidental contact.
–
For pipes, thermal expansion shall be taken into account.
–
Cooling water inlet: For connection to the public mains, all applicable guidelines and safety regulations shall
be followed (e.g. connecting the unit via a system separator).
Pressure must be between 2 and 6 bar.
–
Use only pressure- and temperature-resistant hoses.
BA 300L(D) 0601/dfe
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