8.5.3.1 Option bb
Coolant pre-heating
➤ Start the coolant pre-heating as described in chapter 7.4.2.
8.5.3.2 Option bc
Operating the machine with frost protector
Fig. 23 Frost protector on and off
1
Frost protector tank
2
Shut-off valve
I – open
0 – closed
Switching on the frost protector:
Operation at temperatures below 32°F (winter operation).
Subsequently to the daily operation of the machine, the compressed air conduits and valves must
be moistened with antifreeze.
For this purpose, the defroster must be activated for a short time.
Antifreeze is added to the compressed air.
Precondition Frost protector filled with antifreeze
The machine is switched off.
1. Raise the cover.
2. Open the shut-off valve
2
on the machine's frost protector (position I).
3. Close the canopy.
4. Start the machine.
5. Let the machine run for a short time.
6. Switches the machine off.
7. Raise the cover.
8. Close the shut off valve
2
on the frost protector (position 0).
Result Conduits and valves are sufficiently moistened.
8
Operation
8.5
Operating the options
No.: 9_9547 13 USE
Operator Manual Screw Compressor
MOBILAIR M27
73
