35
The maximum power of the machine in the
hood type
models, will depend on the connection in the
connection strip, as the heating method can be programmed. This may be SIMULTANEOUS or
ALTERNATE, where the boiler and tank resistors operate simultaneously in the first case and the
boiler resistor prevails in the second case. SEE FIGURE.
M
O
D
.
D
,E
C
O
,
C
O
P
,
1
7
x
RC, RT
ALTERNATING
RC, RT
SIMULTANEOUS
7
6
7
6
The manufacturer will not be held liable for any personal or material damage to the
machine resulting from incorrect installation or failure to comply with the
manufacturer’s specifications.
4.4
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:
Water temperature (T):
max. 60
⁰
C
Total water hardness:
5
– 10
⁰
fH (French degrees)
pH:
6.5 - 7.5
7
– 14
⁰
eH (English degrees)
Impurities:
Ø < 0.08 mm
9
– 18
⁰
dH (German degrees)
Chlorides:
max. 150 mg/l
Conductivity:
400 - 1,000 µS/cm
Cl:
0.2 - 0.5 mg/l
If the water hardness is more than 10
⁰
fH (French degrees), a descaler must be installed.
In addition to water quality, the pressure of the mains water supply must be considered. This is
important to ensure the machine operates correctly.
Required water pressure:
DYNAMIC
PRESSURE
Minimum
Maximum
bar
kPa
Kg/cm
2
psi
bar
kPa
Kg/cm
2
psi
2
200
2.03
29
4
400
4.07
58.01
If the water pressure is higher than the recommended pressure, a pressure regulator must be
mounted at the output
(SEE FIGURE 3) (page 5).
If the mains water pressure is lower than the
recommended pressure, a pressure pump should be mounted at the mains water supply outlet
(
SEE
FIGURE 4
)
(page 5)
.
In E models, a pressure pump is not required even when the water pressure is
lower than that stipulated.
FIGURE 3
. Direct connection of water input hose.
FIGURE 4
. Pressure pump connection.
S
→
SHUT-OFF COCK
F
→
FILTER
H
→
WATER HOSE
E
→
ELECTROVALVE
B
→
ELECTRIC PRESSURE PUMP
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 above.
To optimise the working of the machine, the manufacturer recommends that the water
temperature at the machine intake is within the following range.
Cold H
2
O
Hot H
2
O
5
⁰
C < Temp < 35
⁰
C / 41
⁰
F < Temp < 95
⁰
F
50
⁰
C < Temp ≤ 60
⁰
C / 122
⁰
F < Temp < 140
⁰
F
If using hot water, the water temperature must not exceed 60
⁰
C / 140
⁰
F.
If the input water temperature is less than 10
⁰
C, the COLD WATER KIT should be used.
All the
machines should have a ¾” screw-on connection.
Summary of Contents for EVO CONCEPT CO-502
Page 67: ......
