SERVICE MANUAL
ADVANCE OVENS
04/02/2020 60
14.2. HYDRAULIC CONNECTION
Connect the machine to the mains water supply at the points indicated,
using the hose supplied.
The pressure of the incoming water should be between 200 and 400 kPa
(2÷4 kg/cm
2
= 2÷4 bar). We recommend 250 kPa.
The incoming water must have the following specifications:
If the water quality does not meet the specified requirements, contact a professional able to advise on the water
treatment systems necessary to make the water suitable and to provide a solution.
If the water hardness is higher than that indicated, a descaler should be installed to prevent the build-up of lime on
the machine and to permit optimum results.
In addition to water quality, the pressure of the mains water supply must be considered. This is important to ensure
the machine operates correctly. The dynamic pressure of the water inlet must be within the values indicated in the
following table.
DYNAMIC PRESSURE OF WATER INLET
“A” MOD.
“B”, “C” MOD.
If the water pressure is higher than the recommended pressure, a pressure regulator must be mounted.
If the water pressure is lower than the recommended, a pressure pump must be installed. Please contact your
supplier or the manufacturer to request the PRESSURE PUMP KIT.
The water inlet temperature is also important. Hot water should be used to optimise the machine operation, as the
use of cold water will increase the times required to reach the operating temperatures and productivity will be
reduced. If using hot water, the water temperature must not exceed 60 ⁰C / 140 ºF.
EQUIVALENCES OF THE DEGREE OF WATER HARDNESS
Total water hardness: 5 ÷ 10 ºfH
3.5 ÷ 7 ºeH
2.8 ÷ 5.6 ºdH
Impurities: Ø < 0.08 mm
Chlorides: ≤ 150 mg/l
Chlorine: 0.2 ÷ 0.5 mg/l
Conductivity: 400 ÷ 2,000 µS/cm
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