Procedure
Step Action
1 Open the air outlet valve (customer's installation).
2 Switch on the voltage and check that voltage on LED (8) lights up.
3 Press start button (14). The compressor starts running in unloaded condition and
automatic operation LED (7) lights up.
4 Approx. 25 seconds later (programmable), the compressor starts running loaded.
5 On ZR compressors, regulate the water flow with the compressor running loaded and
the thermostatic valve completely open (the latter is valid for energy recovery units). The
aim is to obtain a cooling water temperature rise over the complete compressor unit of
15 K (in case of Pack compressors) and 10 K (in case of Full-Feature compressors). In
case of Full-Feature compressors, also the water flow over the integrated dryer is to be
regulated: a cooling water temperature rise over the dryer of 5 K is to be achieved. For
compressors without energy recovery, this is done by using the ball valve (1) inside the
compressor.
For compressors with energy recovery, a separate fresh cooling water circuit over the
dryer is foreseen and to be regulated to 5 K.
Instruction book
268 2920 1815 04
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