16
1) Installation guide
For best results, the machine needs
an input water ow rate of at least 150
l/h, a minimum pressure exceeding the
pre-infusion pressure and anyway no
lower than 2 bar, and a temperature not
exceeding 45°C (113°F).
Installations that do not meet these
requirements will cause a shorter life of
the pump and may cause a high noise level
during coffee brewing.
If the incoming water of the espresso
machine falls outside the recommended
parameters, it is necessary to carry out one
of the following installations:
WATER CHECK POINT:
FLOW RATE ≥ 150 l/h
2 BAR < PRESSURE ≤ 4 BAR
WATER CHECK POINT:
FLOW RATE < 150 l/h
PRESSURE < 2 BAR
WATER CHECK POINT:
FLOW RATE < 150 l/h
PRESSURE > 4 BAR
ROTARY PUMP
PRESSURE REDUCER
PRESSURE ≤ 4 BAR
WATER CHECK POINT:
FLOW RATE ≥ 150 l/h
PRESSURE > 4 BAR
PRESSURE REDUCER
PRESSURE ≤ 4 BAR
WATER TREATMENT
RECOMMENDED VALUES
www.lamarzocco.com/water_calculator
ROTARY PUMP
TEE FITTINGS
POWER SUPPLY
CORD
WASTE/DRAIN
MAIN SWITCH
AND ELECTRICAL SUPPLY CONNECTION
COFFEE
BOILER
STEAM
BOILER
BRAIDED HOSE
MAIN WATER
SUPPLY VALVE
WATER TREATMENT
RECOMMENDED VALUES
www.lamarzocco.com/water_calculator
TEE FITTINGS
POWER SUPPLY
CORD
WASTE/DRAIN
MAIN SWITCH
AND ELECTRICAL SUPPLY CONNECTION
COFFEE
BOILER
STEAM
BOILER
BRAIDED HOSE
MAIN WATER
SUPPLY VALVE
WATER TREATMENT
RECOMMENDED VALUES
www.lamarzocco.com/water_calculator
TEE FITTINGS
POWER SUPPLY
CORD
WASTE/DRAIN
MAIN SWITCH
AND ELECTRICAL SUPPLY CONNECTION
COFFEE
BOILER
STEAM
BOILER
BRAIDED HOSE
MAIN WATER
SUPPLY VALVE
WATER TREATMENT
RECOMMENDED VALUES
www.lamarzocco.com/water_calculator
TEE FITTINGS
POWER SUPPLY
CORD
WASTE/DRAIN
MAIN SWITCH
AND ELECTRICAL SUPPLY CONNECTION
COFFEE
BOILER
STEAM
BOILER
BRAIDED HOSE
MAIN WATER
SUPPLY VALVE
Fig. 4 - Installation guide - type 1
Pressure lower than 2 bar
Flow rate at least equal to 150 l/h and anyway no
lower than the installed pump rate
Installation with the rotary pump (set to 4
bar) immediately after the water treatment
system, upstream of the tee.
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