Technical Information; Type Key; Technical Data; Scope Of Delivery - Wilo COE-2 MHIL Série Notice De Montage Et De Mise En Service

5 Technical information

5.1 Type key

COE-2 MHIL 304 EM/BC Type key for the pressure-
boosting system series
COE Name of pressure-boosting
system
2 Number of pumps
MHIL Pump type
304 Rated flow rate and number
of stages (3 m
DM Three-phase
EM Single-phase
6 60 Hz
None 50 Hz
BC Switchgear name

5.2 Technical data

• Max. operating pressure:
• Max. ambient temperature: 0 to +40 °C
• Max. fluid temperature:
• Three-phase power supply: 230/400 V
• Single-phase power supply: 220 V +/- 10%
• Rated current:

5.3 Scope of delivery

• Pressure-boosting system
• Operating instructions for the pressure-boosting
system

5.4 Accessories

5.4.1 Mandatory
• Pressure tank
• Low water kit for the municipal or reservoir water
supply
5.4.2 Optional
• Gate valves
• Damping hoses
• Pressure reducer
• Counter flanges around the diameter of the
collector tank

6 Description and function

6.1 General description

The pressure-boosting system is a compact unit
supplied with complete pipework ready for con-
nection. Only the suction and discharge pipes still
have to be connected, in addition to connecting
the system to the power supply.
Installation and operating instructions Wilo-COE-2 MHIL
3
/h 4 stages)
10 bar
+55 °C
+/-10 %
50 Hz
220/380 V
+/-10 %
60 Hz
60 Hz
230 V +/- 10 %
50 Hz
Refer to the
rating plate
Any ordered accessories are delivered separately.
When making the connection to the municipal
water mains, regulations and currently valid
standards must be observed and, as necessary,
fulfilled pursuant to the regulations from water
distribution companies. In addition, local specifi-
cities must be taken into account: for example,
if the suction pressure is too high or too variable,
a pressure reducer must be fitted.

6.2 Description of the product

6.2.1 Pressure-boosting system
See Fig. 1:
Position no. 1: Switchgear
Position no. 2: 2 pressure controllers
Position no. 3: Pressure gauge
Position no. 4: Horizontal multistage MHIL
pumps
Position no. 5: Filler screw
Position no. 6: Drainage screw
Position no. 7: Baseplate for support and
fixation
Position no. 8: Suction manifold
Position no. 9: Discharge manifold
Position no. 10: Non-return valve
Position no. 11: Discharge valve
Position no. 12: Suction valve
6.2.2 Switchgear
• Ensures the full automation of the pressure-
boosting system.
• IP54 protection.
• Thermal motor protection factory-set to the
rated current on the motor plates.
• Exterior switch amplifier for safety and for
activating the module.
For the front view, see Fig. 2:
• Position no. 1: Live indicator light - Indicates the
presence of mains voltage
(unbreaking yellow LED)
• Position no. 2: Operation indicator light for each
pump - Indicates that the pump is
in operation (unbreaking green
LED)
• Position no. 3: Malfunction indicator light for
each pump - Indicates that the
pump is malfunctioning (unbreak-
ing red LED) triggering thermal
motor protection (motor overload)
• Position no. 4: Change-over switch for each
pump with 3 functions:
AUTO – 0 – MANU
• Position no. 5: Low water indicator - Indicates
low water (unbreaking red LED)
For the internal view, see Fig. 3:
• Position no. 1: General switch amplifier with ter-
minals for connecting to the power
supply
• Position no. 2: Magnetic circuit breaker for motor
protection
English
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