User manual

2920 1475 00
28
Instruction book
2.4 Pictographs
2.5 Cooling water requirements
The cooling water quality must meet certain minimum
requirements.
No general recommendation can encompass the effects of all
combinations of the various compounds, solids and gases
typically found in cooling water in interaction with different
materials.
Fig. 2.12 Pictographs, control panel
Fig. 2.13 Pictographs, other locations (typical examples)
1 Start
2 Keys to scroll through display
3 Key to go to next field on display
4 Voltage on
5 Alarm
6 Automatic operation
7 Stop
8 Oil the gaskets, screw on the
filters and tighten by hand
(approx. one half turn)
9 Cooling water inlet
10 Cooling water outlet
11 Consult the Instruction book
before maintenance or repair
12 Condensate outlet
13 Automatic condensate drain
14 Automatic condensate drain for
optional oil/water separator (type
OSD)
15 Manual condensate drain
16 Stop the compressor before
cleaning the coolers
17 Warning: under tension
18 Read Instruction book before
starting the compressor
19 Switch off the voltage and de-
pressurize the compressor before
maintenance or repair
20 Before connecting the compressor
electrically, consult the Instruction
book for the motor rotation
direction
21 Torques for steel (Fe) or brass
(CuZn) bolts
22 Consult the Instruction book
before greasing
23 Switch off the voltage before
removing the protecting cover
inside the electric cabinet
Figs. 2.12 and 2.13 Pictographs
This recommendation is a general guide line for acceptable
coolant quality.
2.5.1 Type of the system
Closed system
In a closed system, the same cooling water is circulating through
a system without contact with air.