English
Installation and operating instructions Wilo-MVI 10, 15, 30, 50, 80
5
Outline and pipe dimensions:
See fig. 3a - d
5.3 Scope of Supply
• Installation and operating instructions
• Flanges:
-
Oval two bolt style: companion flanges, bolts
and gaskets are included with the pump.
-
ANSI 300lb: pump delivered with gaskets and
bolts without counter-flanges (accessories as
option),
-
Victaulic type with rapid hose coupling for Vic-
taulic bracket: pump delivered without brackets
(accessories as option).
5.4 Accessories
• By-pass kit
• Counter Flanges (300 # round type, various connec-
tions and Oval 2 bolt threaded)
6 Description and function
6.1 Product description (see fig. 1 & 2)
1-Strainer-foot valve
2-Pump suction valve
3-Pump discharge valve
4-Non-return valve
5-Venting and filling plug
6-Drain-priming plug
7-Pipe supports
8-Strainer
9-Storage tank
10-Town water supply
11-Motor starter
12-Lifting hook
13-Foundation block
HA: Maximum suction head
HC: Minimum inlet pressure
6.2 Design of pump and motor
Vertical multistage in-line, glanded (with mechani-
cal seal) centrifugal pump. Motor standard NEMA
frame type, coupled to the pump with a shaft cou-
pling and coupling guards.
7 Installation and electrical connection
Installation and electrical work in compliance with
any local codes and by qualified personnel only!
7.1 Installation
• The pump must be installed in a dry, well-ventilated
and frost-free place.
• Install the pump in a dry place protected from frost
and as close as possible to the water in a suction lift
application.
• Locate the pump in an accessible location to facili-
tate inspection and maintenance. The pump must be
installed in a vertical configuration on a concrete
base.
• For especially heavy pumps, place a hook or a ring of
sufficient capacity (total weight of pump) to allow
the use of a hoist or similar device for the servicing
and repair of the pump.
• Install the pump on a concrete block (at least 4” / 10
cm high). Consider an vibration insulation pad
between the concrete base and pump in locations
where noise might cause problems.
• The installation surface must be level and flat: any
tilting of the pump could cause premature bearing
wear.
5.2 Data table
Electrical data
Motor Enclosure:
ODP: Enclosure Type 1, for indoor use
only
TEFC: Enclosure Type 2
Insulation class:
F
Frequency
60 Hz
Voltages
1
~
: 115/230 V (± 10 %)
3
~
: 208-230 V/460 V, 575 V (± 10 %)
Others
Minimum suction
head:
according to NPSH of the pump
Ambient humidity:
<90 %
Noise level
Depends on pump size, rotation speed,
working point, motor type: it can reach
77 dB(A) for ODP and 86 dB(A) for
TEFC motors.
WARNING! Bodily injury
Existing regulations for the prevention of acci-
dents must be observed.
WARNING! Electrical shock hazard
Dangers caused by electrical energy must be
excluded.
National Electrical Codes, local codes and regula-
tions must be followed.
CAUTION! Possible damage of the pump
Dirt and solder drops into the pump body can
effect the pump operation.
• It is recommended that any welding and soldering
work be done before installing the pump.
• Thoroughly flush the system out before installing
the pump.
WARNING! Risk of accident by hot surfaces
The pump must be positioned so that someone
cannot come into contact with the hot pump sur-
faces while operation.
