Manual of instructions TT-390 18/35
5.4.1. Heat transfer oil
Temperatures up to +250°C ask for heating transfer oils such as TOOL-THERM SH-3, Shell
Thermia B, BP Transcal N, Essotherm 500 or equivalent products. For operating the temperature
control unit up to temperatures +360°C, must be used TOOL-THERM SH-3. Other similar
products must be individually clarified. Please note: The used heat transfer oil has to be taken
down in a check list. Particularly the maximum operating temperatures according to the
specifications of the heat transfer oil manufacturer has to be taken down.
The use of unsuitable oil sorts or water is not permitted and is not regarded
as use as agreed.
5.4.1. Pump rotation check
On top of the unit the direction of rotation can be checked. The unit has been connected to the
main supply, hoses must be mounted and heat transfer medium has been filled. Identify the
sense of rotation of the motor by switching it on shortly. The sense of rotation must be clockwise
as shown by the arrow.
If the sense of rotation is anti-clockwise invert two phases on the electrical connection. This has
to be done by a qualified electrician.
5.4.2. Display of pump pressure
The pump pressure is shown on the manometer.
The temperature control unit may be pressurised!
Only when the pressure gauge shows 0 bar, disconnect hoses!
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