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4 Products and accessories
4.1 Description (see Fig. 1-9):
1 : Foot valve with suction strainer (maximum
free-flowing cross-section 1 mm)
2 : Stop valve; on suction side
3 : Stop valve; on the pressure side
4 : Non-return valve
5 : Inlet/bleeder screw
6 : Drainage screw
7 : Pipe bracket
8 : Suction strainer
9 : Replenishment reservoir
10 : Tap water network
11 : Switch, switch amplifier with fuses
12 : Cock
13 : Pedestal
14 : Pressure sensor
15 : Diaphragm pressure vessel
16 : Gate valve for diaphragm pressure vessel
17 : Red LED
18 : Green LED
19 : Potentiometer
20 : Connection terminal
21 : Protection against low water level
HA : Maximum suction head
HC : Minimum suction head
4.2 The pump
Horizontal centrifugal pump.
Multistage, not self-priming.
Suction/outlet openings with thread.
Axial suction, radial outlet upwards.
Sealing on shaft passage by means of standard
mechanical seal.
4.3 The motor with frequency converter
Three-phase AC motor, two-pole, with frequency
converter.
Protection class: IP 55
Insulation class: F
Operational voltages and frequencies
50 Hz
Frequency
Voltages
1 ~ 230 V (±10%)
4.4 Accessories (optional)
• Suction kit
• Shut-off device
• Diaphragm pressure vessel
• Tank
• Non-return valve
• Foot valve with suction strainer
• Compensator
• Protection against low water level
(potable water network)
(see Fig. 5, Pos. 21)
• Pressure sensor control kit (sensor precision:
≤ 1%; utilisation between 30% and 100% of the
reading range).
Installation and operating instructions - Wilo-Economy MHIE 1~
ATTENTION!
Height
meter
0.00 m 0.00 mCL
500 m 0.60 mCL
1000 m 1.15 mCL
ATTENTION!
60 Hz
1 ~ 220 V (±6%)
ATTENTION!
Pipe connections
Pump
type
Suction
opening
Outlet
opening
5 Installation
Two types:
• see Fig 1: Suction mode.
• see Fig. 2: Pressure operation from replenish-
ment vessel (Pos. 9) or potable water network
(Pos. 10).
5.1 Installation
Install the pump at a readily accessible location
which is protected against external influences
(excessive rain or sunlight, frost) and which is as
near as possible to the extraction point.
Place the pump on a pedestal (Pos. 13) or directly
on a smooth, level base. Fixation of the pump
with 2 holes for Ø M8 bolts.
Note that the height of the installation
location and the temperature of the
fluid will diminish the suction capacity
of the pump.
Temperature Height loss
Height loss
20°C
30°C
40°C
50°C
60°C
70°C
80°C
90°C
100°C
110°C
120°C
Installation should be carried out in
pressure operation when temperatures
exceed 80°C.
5.2 Pipe connections
The installation must be sufficient for
the pressure that the pump generates
at maximum frequency and zero flow
volume.
MHIE
200
1"1/4 -
1"- (26-34)
1" -
1" - (26-34)
- Connection with spiral-reinforced flexible hoses
or rigid pipe.
- Seal the pipe connections well with suitable
products. No air is permitted to enter the suc-
tion line; lay the suction line with a continuous
rise (2%) (see Fig. 1).
- In the case of rigid pipes, take care to ensure that
the weight of the lines is not borne by the pump
alone. Utilise supports and/or pipe brackets (see
Figs. 1 + 2, Pos. 7).
0.20 mCL
0.40 mCL
0.70 mCL
1.20 mCL
1.90 mCL
3.10 mCL
4.70 mCL
7.10 mCL
10.30 mCL
14.70 mCL
20.50 mCL
400
800
1"1/2 -
(33-42)
(40-49)
1"1/4 -
(26-34)
(33-42)
19
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