Fagor Evo COP-504 W - Hydraulic Connection

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8.4 Hydraulic connection
The new hoses supplied with the appliance should be used (do not reuse old hoses).
Before connecting the machine to the water supply, the water quality should be tested.
Recommended water quality:
pH:
6.5 to 7.5
Alkalinity:
Less than 50 ppm (mg/L)
Free Chlorine:
Less than 0.2 ppm (mg/L)
Total Dissolved Solids (TDS) :
Less than 60 ppm
Chlorides:
Less than 30 ppm (mg/L)
Sulfates:
Less than 40 ppm
Hardness:
Less than 3 gpg (52 ppm)
Iron:
Less than 0.1 ppm
Conductivity:
400 – 1.000 µS/cm
Copper:
Less than 0.05 ppm
Silica:
Less than 12 ppm (mg/L)
Manganese:
Less than 0.05 ppm
Water installation is carried out as shown in Fig 3 and Fig 4. The water line to the dishwasher must
provide 25psi ± 5psi of flow rinse pressure. The hot water heater should be set to deliver 140F (not
lower than 122°F) water temperature to the dishwasher for best results. Use ¾” copper tubing inlet
line.
CAUTION: Do not confuse static pressure with flow pressure. Static pressure is the line pressure in
a “no flow” condition (all valves and services are closed). Flow pressure is the pressure in the fill line
when the solenoid valve is opened during the cycle.
It is necessary to remove all foreign debris from the water line that may potentially get trapped in the
valves or cause an obstruction, prior to connecting to the machine.
Use only the supplied hoses (3/4” Female hose connector) at the water connections. Failure to do so
may result in damage to the solenoid valve threads and leaking. Tighten by hand. Connect the bent
side of the hose to the machine. Adaptor supplied for ¾” female garden hose connection.
FOR HARD WATER SUPPLIES WITH A HARDNESS OF OVER 3 gpg OR 5ºfH AND PH BEYOND
THE RANGE OF 6.5 – 7.5, A WATER CONDITIONER/DESCALER MUST BE INSTALLED.
Slowly turn on the water supply to the machine after the incoming fill line and the drain line have
been installed. Check for any leaks and repair as required. All leaks must be repaired prior to placing
the machine in operation.
In addition to water quality, the pressure of the mains water supply must be considered. This is
important to ensure the machine operates correctly.
In areas where the pressure fluctuates or it is higher than the recommended pressure, a water
pressure regulator shall be installed between the shut-off cock and the water hose (Fig. 3.).
Required water dynamic pressure measured at pressure gauge 25psi ± 5psi (CO models).
Required water dynamic pressure measured at water inlet between 15-58 psi (COP models).
If the water pressure is less than required (25psi ± 5psi for COP models), installation of a water
pump is required as shown in Fig. 4.
Fig. 3. Direct connection of water input hose.
Fig. 4. Pressure pump connection.
S → SHUT-OFF COCK
E → WATER VALVE
F → FILTER
B → ELECTRIC PRESSURE PUMP
H → WATER HOSE
The following requirements are necessary for the correct hydraulic installation of the machine.
 The hydraulic circuit must be fitted with a valve to shut-off the water supply.
 Check that the mains pressure is within the range indicated.
 To optimise the work of the machine, the water temperature at the machine intake should be
within the following range: 122 ⁰F (50 ⁰C) < Hot water Temp < 140 ⁰F (60 ⁰C)
 If using hot water, the water temperature must not exceed 60 ⁰C / 140 ⁰F.
 All the machines should have a ¾” screw-on connection.