29
5.6. Power
connection
Caution:
•
Only connect the unit to a power socket with earthing contact (PE – protective
earth)!
•
The power supply plug serves as a safe disconnecting device from the line and
must be always easily accessible.
•
Never operate equipment with damaged mains power cables.
•
Regularly check the mains power cables for material defects (e.g. for cracks).
•
We disclaim all liability for damage caused by incorrect line voltages!
Check to make sure that the line voltage matches the supply
voltage specified on the identification plate.
Deviations of ±10 % are permissible
•
Connect the mains plug (12) to a power socket with earthing
contact (PE – protective earth)!
5.7. Filling
Caution:
Take care of the bath liquid's changing volume varying with the working
temperature of the Presto temperature system.
Guideline:
A volume change of 12 % per 100 °C temperature variation is to be considered..
The maximum change in volume in the internal reservoir for the different models is
included in the table below.
Filling is performed in two sections.
In section 2, the temperature system starts an automatic filling
process enabling convenient filling.
Notice:
First connect the external system! (see page 26)
Indication max:
11 liters (LH 47)
18.5 liters (LH 50)
Indication min:
3.0 liters (LH 47)
10.5 liters (LH 50)
Take care no bath liquid enters the interior of the unit.
Filling volume
LH47
LH50
(without external
approx. liters
approx. liters
system connected)
2,5
10
- in the heat exchanger
2,5
10
- in the internal reservoir
8.4
8,4
Recommendation:
For filling, use for example an approx. 2 liters measuring jug.
Select the bath liquid suitable for the temperature application task.
(see also diagram 1 page 24).
For temperature applications to +250 °C fill up to marker "HT", for
applications to for example –50 °C fill up to marker "TT".
Summary of Contents for Presto Plus LH 47
Page 20: ...Operating controls and functional elements 20 Rear...
Page 41: ...41...
