NG DP
TECHNICAL SERVICE MANUAL
18
5. OPERATION
5.1. Preliminary Checks
a) Is machine levelled?
b) Are voltage and frequency of mains supply the same as indicated on rating plate?
c) Is drainage system working properly?
d) Is air circulation and room temperature adequate? (Air-cooled models)
MAXIMUM
MINIMUM
AMBIENT
43º C (109.4ºF)
5º C (41ºF)
WATER
35ºC (95ºF)
5ºC (41ºF)
e) Is water pressure adequate?
MAXIMUM
0.7 bar
MINIMUM
6 bar
NOTE:
To install a pressure reducer If water inlet pressure is more than 6 bar.
ATENTION:
Check that voltage and mains frequency is the same as in the rating plate.
5.2. Starting up
Having followed the installation instructions (ventilation, temperature, room conditions, water
quality,
etc…), proceed as follows:
1) Open water faucet. Check for leaks.
2) Plug machine into electricity mains supply.
3) Switch on the machine (the switch is in the front of the machine).
4) Ensure that there are no strange vibrations or scraping sounds.
