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14

1. General

1.1  About this document

These installation and operating instructions are 
an integral part of the product. They must be kept 
readily available at the place where the product is 
installed. Strict adherence to these instructions 
is a precondition for the proper use and correct 
operation of the product.
These installation and operating instructions 
correspond to the relevant version of the product 
and the underlying safety standards valid at 
the time of going to print. 

SPECIAL NOTE: ALL 

REFERENCES TO FIGURES WILL BE ON PAGES 

2-13.

1.2  Modeling information 

Please refer to 

Fig. 1a (page 2) -

 

Model numbering 

information format

, for the reference concerning 

the model description. 

1.3  Model nameplate information

Every MVI pump shall be shipped with a specific 

nameplate for the model ordered that includes all 
the information of the pump. Please refer to 

Fig. 

1b (page 2) -Model nameplate information 

.

2. Safety

These instructions contain important information 
which must be followed when installing and 
operating the pump. It is therefore imperative that 
they be read by both the installer and the operator 
before the pump is installed or operated.
Both the general safety instructions in this 

section and the more specific safety points in the 

following sections should be observed.

2.1  Instruction symbols used in this operating 

manual

          Symbols

General danger symbol

Hazards from electrical causes

NOTE: ...

          Signals words:

DANGER! Imminently hazardous situation. 

Will result in death or serious injury if not 

avoided.
WARNING!  Risk of serious injury. ‘Warning’ 

implies that failure to comply with the safety 

instructions can potentially result in severe 

personal injury.
CAUTION! Risk of damage to the pump if 

improperly installed. 

NOTE:  Useful information on the handling of the 
product. It alerts the user to possible problems.

    

2.2  

Personnel qualification

The personnel installing the pump must have the 

appropriate qualification for this work

.

2.3  Possible risks incurred by failure to comply with 

the safety instructions

Failure to comply with the safety instructions 
could result in personal injury or damage to the 
pump or installation. Failure to comply with the 
safety instructions could also invalidate any claim 
for damages.
In particular, failure to comply with these safety 
instructions could give rise, for example, to the 
following risks:

•  Failure of important pump or installation 

functions,

•  Failure of specified maintenance and repair 

methods, 

•  Personal injury due to electrical, mechanical and 

environmental causes,

•  Damage to property.

2.4  Safety precautions for the operator

The relevant accident precaution regulations must 
be observed. Dangers caused by electrical energy 
must be excluded. Local or general regulations 
[e.g. NEC,NEMA, etc.] and directives from local 
codes.

   2.5  Safety precautions for inspection and  

installation

The operator must ensure that all inspection and 
installation work is carried out by authorized and 

qualified specialists who have carefully studied 

these instructions. 
Work on the pump/unit must be carried out only 
with the pump disconnected (locked out) from 
the electrical supply and at complete standstill.
For proper mounting options concering the pump 
installation please refer to 

Figure 2 (page 3)

Proper Mounting

.

   2.6  Unauthorized alterations and manufacture of 

spare parts

Alterations to the pump or installation may only 
be made in agreement with the manufacturer. 
The use of original spare parts and accessories 
authorized by the manufacturer will ensure safety. 
The use of any other parts may invalidate claims 
revoking the liability of the manufacturer.

2.7  Improper use

The proper operation of the pump or installation  
can only be guaranteed if it is used in accordance 
with the operating instructions. All values must 
neither exceed, nor fall below, the limit values 
given in the catalogue or data sheet.

3. Transport and interim storage

When receiving the material, check that there has 
been no damage during the transport. If shipping 
damage has occurred, take all necessary steps 

Scot Pump 02/2022

Summary of Contents for MVI 15

Page 1: ...MVI_IOM_0201 22 MVI Vertical Multistage Centrifugal Pump Installation and Operating Instructions A WILO BRAND...

Page 2: ...stage centrifugal pump in line design Pump gallons per minute BEP Number of Pump stages at full diameter Number of Pump stages at reduced diameter Pump Horsepower NEMA motor frame Pump construction de...

Page 3: ...fting Lift pump assembly and pump and motor assembly with lifting straps that pass through the motor stool Ensure that the load is not applied to the pump shaft Special L bracket needed to mount horiz...

Page 4: ...utanol 140 F Calcium acetate 30 122 F Calcium hydroxide Saturated solution 122 F Chromic acid 1 68 F Condensate 194 F Copper sulphate Unsaturated solution 140 F Deionic fully desalinated water 122 F E...

Page 5: ...Potassium hydrogen carbonate 10 140 F Potassium permanganate 5 68 F Potassium sulphate Unsaturated solution 176 F Rapeseed oil 100 176 F Silicone oil 100 Sodium carbonate 10 140 F Sodium hydroxide 25...

Page 6: ...116 psi 9 12 363 psi 3 12 145 psi MVI 100 1 7 232 psi 1 116 psi 8 10 363 psi 2 10 145 psi MVI 160 1 1 5 232 psi 1 1 2 58 psi 6 2 11 2 435 psi 3 2 6 145 psi 7 2 11 2 217 psi MVI 225 1 1 4 2 232 psi 1 1...

Page 7: ...Fig 6a MVI 5 15 20 50 75 100 Section View Fig 6b MVI 160 225 320 450 Section View MVI 160 225 320 450 MVI 5 15 20 50 75 100 7...

Page 8: ...MVI 600 750 Fig 6c MVI 600 750 Section View Fig 7a Proper Installation Clearances 10 8...

Page 9: ...7 09 4 x 14 55 210 8 27 Fig 7d MVI 160 Flange s Footprint 90 3 54 249 9 80 26 1 02 0 75 x 0 875 x4 6 50 5 00 4 76 2 300 ANSI SUCTION DISCHARGE 130 5 12 215 8 46 248 61 9 79 4 x 14 55 299 11 77 30 1 18...

Page 10: ...00 75 x8 7 50 7 87 88 x8 10 00 190 7 48 265 10 43 14 55 x4 330 12 99 MVI 320 1 1 320 3 MVI 450 1 1 450 3 4 150 ANSI SUCTION DISCHARGE MVI 320 4 2 320 5 2 MVI 450 4 2 450 4 1 4 300 ANSI SUCTION DISCHAR...

Page 11: ...Fig 7h Storage tank or water main installation 1 8 5 6 6 9 4 3 2 8 3 vent plug 4 priming plug water main feed Fig 7i Suction lift installation 10 7 2 4 9 5 1 6 6 3 3 vent plug 4 priming plug 11...

Page 12: ...Figure 7j Proper pump mounting 5 1 2 3 3 4 2 1 6 7 Fig 7k Proper piping 12...

Page 13: ...VI 600 750 M16 1062 120 AIR VENT DRAIN PLUG in lb N m 310 35 IMPELLER NUT LOCK NUT PUMP in lb N m MVI 5 15 20 159 18 MVI 50 75 100 195 22 MVI 160 225 320 450 885 100 MVI 600 750 1593 180 STRAP BOLT PU...

Page 14: ...cation for this work 2 3 Possible risks incurred by failure to comply with the safety instructions Failure to comply with the safety instructions could result in personal injury or damage to the pump...

Page 15: ...ater Treatment Water softeners and de mineralization Reverse Osmosis systems Filtration Ultra filtration systems Distillation systems Heating Ventilation and Air Conditioning Boilers Induction heating...

Page 16: ...facilitate inspection replacement and removal work The pump must always be installed perfectly upright on a sufficiently heavy concrete base Refer to Fig 7a page 8 Proper Installation Clearances CAUT...

Page 17: ...and phase are suitable for the motor used All electrical connections must be locked out before performing any electrical task Assure that the control panel component 5 in Fig 7j page 12 Proper pump mo...

Page 18: ...proximity to the pump WARNING Installation must be designed in order that no one is injured in case of fluid leakage 8 3 Minimum Inlet Pressure NPSH To avoid cavitation make sure that there is a mini...

Page 19: ...voltage Especially at peak time Check the power supply The pump starts but after a short time the thermal protector trips out or the fuses blow The voltage is not within the motor s operating limits C...

Page 20: ...ve or system Repair or replace the components Ruptured membrane or no air pre charge in surge tank See relevant instructions in surge tank s manual Vibration and noise Cavitation Reduce the required f...

Page 21: ...21 Installation and operating instructions MVI 5 15 20 50 75 100 160 225 320 450 600 750...

Page 22: ...ing for You Scot Pump Wilo Canada Inc 1 262 377 7000 www scotpump com scot sales wilo com 1 403 276 9456 www wilo canada com info wilo canada com WILO USA LLC 1 262 204 6600 www wilo usa com info us w...

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