Xylem GOULDS MCS Manual

1
Model MCS
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
INSTRUCTION MANUAL
IM052R06

2
TABLE OF CONTENTS
SUBJECT PAGE
Safety Instructions.................................................................................................................................................................. 3
Important ................................................................................................................................................................................ 3
Installation............................................................................................................................................................................... 3
Suction Piping ........................................................................................................................................................................ 3
Discharge Piping.................................................................................................................................................................... 4
Rotation................................................................................................................................................................................... 4
Operation................................................................................................................................................................................ 4
Maintenance........................................................................................................................................................................... 4
Disassembly............................................................................................................................................................................ 4
Reassembly............................................................................................................................................................................. 4
Troubleshooting..................................................................................................................................................................... 5
Parts List .................................................................................................................................................................................. 6
Mechanical Seal Application Chart...................................................................................................................................... 6
Limited Warranty.................................................................................................................................................................... 7
Declaration of Conformity ..................................................................................................................................................16
Pump Model Number:
Pump Serial Number:
Dealer:
Dealer Phone No.:
Date of Purchase:
Date of Installation:
Current Readings at Startup:
1 Ø 3 Ø L1-2 L2-3 L3-1
Amps: Amps:
Volts: Volts:

3
SAFETY INSTRUCTIONS
TO AVOID SERIOUS OR FATAL PERSONAL
INJURY OR MAJOR PROPERTY DAMAGE, READ
AND FOLLOW ALL SAFETY INSTRUCTIONS IN
MANUAL AND ON PUMP.
THIS MANUAL IS INTENDED TO ASSIST IN THE
INSTALLATION AND OPERATION OF THIS UNIT
AND MUST BE KEPT WITH THE PUMP.
This is a SAFETY ALERT SYMBOL.
When you see this symbol on the
pump or in the manual, look for one
of the following signal words and
be alert to the potential for personal
injury or property damage.
Warns of hazards that WILL cause
serious personal injury, death or major
property damage.
Warns of hazards that CAN cause
serious personal injury, death or major
property damage.
Warns of hazards that CAN cause per-
sonal injury or property damage.
NOTICE: INDICATES SPECIAL INSTRUCTIONS
WHICH ARE VERY IMPORTANT AND
MUST BE FOLLOWED.
THOROUGHLY REVIEW ALL INSTRUCTIONS
AND WARNINGS PRIOR TO PERFORMING ANY
WORK ON THIS PUMP.
MAINTAIN ALL SAFETY DECALS.
UNIT NOT DESIGNED FOR USE
WITH HAZARDOUS LIQUIDS OR
FLAMMABLE GASES. THESE
FLUIDS MAY BE PRESENT IN
CONTAINMENT AREAS.
DESCRIPTION and SPECIFICATIONS:
The Model MCS is a close coupled, end suction,
centrifugal pump for general liquid transfer service,
booster applications, etc. Liquid-end construction is
all AISI Type 304 stainless steel, stamped and welded.
Impellers are fully enclosed, non-trimmable to inter-
mediate diameters. Casings are tted with diffusers
for efciency and for negligible radial shaft loading.
All units have NEMA 48Y or 56Y motors with square
ange mounting and threaded shaft extension.
1. IMPORTANT
1.1. Inspect unit for damage. Report any damage to
carrier/dealer immediately.
1.2. Electrical supply must be a separate branch circuit
with fuses or circuit breakers, wire sizes, etc., in
compliance with National and Local electrical codes.
Install an all-leg disconnect switch near pump.
Always disconnect electrical power
when handling pump or controls.
DANGER
WARNING
CAUTION
WARNING
Hazardous fluids can
cause fire, burns
or death.
1.3. Motors must be wired for proper voltage. Mo-
tor wiring diagram is on motor nameplate. Wire
size must limit maximum voltage drop to 10% of
nameplate voltage at motor terminals, or motor
life and pump performance will be lowered.
1.4. Always use horsepower-rated switches, contactor
and starters.
1.5. Motor Protection
1.5.1. Single-phase: Thermal protection for single-
phase units is sometimes built in (check
nameplate). If no built-in protection is provid-
ed, use a contactor with a proper overload.
Fusing is permissible.
1.5.2. Three-phase: Provide three-leg protection
with properly sized magnetic starter and
thermal overloads.
1.6. Maximum Operating Limits:
Liquid 212ºF (100ºC) with standard seal
Temperature: 250ºF (120ºC) with high
temperature seal.
Working Pressure:75 PSI with standard seal
125 PSI with optional seals.
Starts per Hour: 20, evenly distributed.
1.7. Regular inspection and maintenance will increase
service life. Base schedule on operating time.
Refer to Section 8.
2. INSTALLATION
THE INSTALLATION OF THE PUMP
SHALL INCLUDE ADEQUATE
DRAINAGE OR LOCATED SUCH THAT OTHER EQUIP-
MENT OR PROPERTY WOULD NOT BE DAMAGED IN
THE EVENT OF ANY LEAKAGE. THE PUMP SHOULD
NOT BE INSTALLED ABOVE EQUIPMENT OR PROP-
ERTY UNLESS ADEQUATE DRAINAGE IS PROVIDED.
FAILURE TO COMPLY WITH THIS WARNING COULD
RESULT IN PROPERTY DAMAGE.
OVERTIGHTENING OF THE CASING
FASTENERS COULD DAMAGE THE
FASTENER, RESULTING IN LEAKAGE AND
PROPERTY DAMAGE.
2.1. Locate pump as near liquid source as possible
(below level of liquid for automatic operation).
2.2. Protect from freezing or ooding.
2.3. Allow adequate space for servicing and ventilation.
2.4. All piping must be supported independently of the
pump, and must “line-up” naturally.
Never draw piping into place by
forcing the pump suction and
discharge connections.
2.5. Avoid unnecessary ttings. Select sizes to keep
friction losses to a minimum.
2.6. Units may be installed horizontally, inclined or
vertically.
Do not install with motor below
pump. Any leakage or condensation
will affect the motor.
2.7. Foundation must be at and substantial to
eliminate strain when tightening bolts. Use rubber
mounts to minimize noise and vibration.
2.8. Tighten motor hold-down bolts before
connecting piping to pump.
CAUTION
CAUTION
CAUTION
WARNING
WARNING

4
3. SUCTION PIPING
3.1. Low static suction lift and short, direct, suction piping
is desired. Consult pump performance curve for Net
Positive Suction Head Required.
3.2. Suction pipe must be at least as large as the suction
connection of the pump. Smaller size will degrade
performance.
3.3. If larger pipe is required, an eccentric pipe reducer
(with straight side up) must be installed at the pump.
3.4. Installation with pump below source of supply:
3.4.1. Install full ow isolation valve in piping for
inspection and maintenance.
Do not use suction isolation valve to
throttle pump.
3.5. Installation with pump above source of supply:
3.5.1. Avoid air pockets. No part of piping should
be
higher than pump suction connection. Slope
piping upward from liquid source.
3.5.2. All joints must be airtight.
3.5.3. Foot valve to be used only if necessary for
priming, or to hold prime on intermittent
service.
3.5.4. Suction strainer open area must be at least
triple the pipe area.
3.6. Size of inlet from liquid source, and minimum sub-
mergence over inlet, must be sufcient to prevent
air entering pump through vortexing. See Figures 1
through 4.
3.7. Use 3 to 4 wraps of Teon tape to seal threaded con-
nections.
4. DISCHARGE PIPING
4.1. Arrangement must include a check valve located
between a gate valve and the pump. The gate
valve is for regulation of capacity, or for inspection
of the pump or check valve.
4.2. If an increaser is required, place between check
valve and pump.
4.3. Use 3 to 4 wraps of Teon tape to seal threaded
connections.
5. ROTATION
5.1. Correct rotation is right-hand (clockwise whe viewed
from the motor end). Switch power on and off
quickly. Observe shaft rotation. To change rotation:
5.1.1. Single-phase motor: Non-reversible
5.1.2. Three-phase motor: Interchange any two
power supply leads.
6. OPERATION
6.1. Before starting, pump must be primed (free of
air and suction pipe full of liquid) and discharge
valve partially open.
6.2. Make complete check after unit is run under op-
erating conditions and temperature has stabilized.
Check for expansion of piping.
7. MAINTENANCE
7.1. Ball bearings are located in and are part of the
motor. They are permanently lubricated. No
greasing required.
Pumped liquid provides lubrication.
If pump is run dry, rotating parts will
seize and mechanical seal will be damaged. Do not
operate at or near zero ow. Energy imparted to
the liquid is converted into heat. Liquid may ash
to vapor. Rotating parts require liquid to prevent
scoring or seizing.
8. DISASSEMBLY
Complete disassembly of the unit will be described.
Proceed only as far as required to perform the mainte-
nance work required.
8.1.Turn off power.
8.2. Drain system and ush if necessary.
8.3.Remove motor hold-down bolts.
8.4.Disassembly of Liquid End
8.4.1. Remove casing bolts (370).
8.4.2. Remove back pull-out assembly from
casing (100).
8.4.3. Remove impeller locknut (304).
Do not insert screwdriver between
impeller vanes to prevent rotation
of close-coupled units. Remove cap at opposite
end of motor. A screwdriver slot or a pair of ats
will be exposed. Using them will prevent impeller
damage.
8.4.4. Remove impeller (101) by turning counter-
clockwise when looking at the front of the
pump. Protect hand with rag or glove.
Failure to remove the impeller in a
counter-clockwise direction may dam-
age threading on the impeller, shaft or both.
8.4.5.With two pry bars 180 degrees apart and
inserted between the seal housing (184) and
the motor adapter (108), carefully separate
the two parts. The mechanical seal rotary unit
(383) should come off the shaft with the seal
housing.
8.4.6.Push out the mechanical seal stationary seat
from the motor side of the seal housing.
Figure 1
Figure 4
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
H
1 2 3 4 5 6 7 8 9 1011 1213 14 15 16 V
H = Min. Submergencein feet
V = Velocity in feet per second
=GPM x 0.321 GPM x 0.4085
Area D2
Figure 3
1.5D
min.
3.0D
min.
D D
H min.
Dmin.
2
---------
---------
D
H min.
Figure 2
D
H min.
---------
---------
CAUTION
CAUTION
CAUTION
CAUTION

5
9. REASSEMBLY
9.1.All parts should be cleaned before assembly.
9.2.Refer to parts list to identify required replacement
items. Specify pump index or catalog number when
ordering parts.
9.3.Reassembly is the reverse of disassembly.
9.4.Observe the following when reassembling the liquid-
end:
9.4.1.All mechanical seal components must be in
good condition or leakage may result. Re-
placement of complete seal assembly, when-
ever seal has been removed, is good standard
practice.
It is permissible to use a light lubricant, such
as glycerin, to facilitate assembly. Do not
contaminate the mechanical seal faces with
lubricant.
9.4.2.Inspect casing O-ring (513) and replace if
damaged. This O-ring may be lubricated with
petroleum jelly to ease assembly.
9.4.3.Inspect guidevane seal ring (349) and replace
if worn.
Do not lubricate guidevane seal ring
(349). Insure it is not pinched by the
impeller on reassembly.
9.5.Check reassembled unit for binding. Correct as
required.
9.6.Tighten casing bolts in a star pattern to prevent
O-ring binding.
10. TROUBLE SHOOTING CHART
MOTOR NOT RUNNING
(See causes 1 through 6)
LITTLE OR NO LIQUID DELIVERED
(See causes 7 through 17)
POWER CONSUMPTION TOO HIGH
(See causes 4, 17, 18, 19, 22)
EXCESSIVE NOISE AND VIBRATION
(See causes 4, 6, 9, 13, 15, 16, 18, 20, 21, 22)
PROBABLE CAUSE:
1. Tripped thermal protector
2. Open circuit breaker
3. Blown fuse
4. Rotating parts binding
5. Motor wired improperly
6. Defective motor
7. Not primed
8. Discharge plugged or valve closed
9. Incorrect rotation
10. Foot valve too small, suction not submerged, inlet
screen plugged.
11. Low voltage
12. Phase loss (3-phase only)
13. Air or gasses in liquid
14. System head too high
15. NPSHA too low:
Suction lift too high or suction losses excessive.
Check with vacuum gauge.
16. Impeller worn or plugged
17. Incorrect impeller diameter
18. Head too low, causing excessive ow rate
19. Viscosity or specic gravity too high
20. Worn bearings
21. Pump or piping loose
22. Pump and motor misaligned
CAUTION

6
PARTS LIST
Item No. Description Materials
100 Casing AISI 316L SS
101 Impeller
108 Motor adapter Steel
123 Deector BUNA-N
184 Seal housing AISI 316L SS
347 Guidevane
349 Seal ring, guidevane BUNA-N
370 Socket head screws, casing AISI 410 SS
371 Bolts, motor Plated steel
383 Mechanical seal See chart
408 Drain and vent plug, casing AISI 316L SS
412B O-ring, drain and vent plug Viton (standard)
513 O-ring, casing BUNA / EPR (optional)
Motor NEMA standard, 56Y frame
MECHANICAL SEAL APPLICATION CHART
Rotary Stationary Elastomers Metal Parts Part No.
Ceramic BUNA 18-8SS 10K10
Carbon EPR 10K18
Silicon Viton 316SS 10K55
Silicon Carbide Carbide EPR 10K81
Viton 10K62
123
MOTOR
108
371
184
513
383
101
347
349
408
412B
100
370
357
356
304
240

7
COMMERCIAL WARRANTY
For goods sold to commercial buyers, Seller warrants the goods sold to Buyer hereunder (with the exception of membranes, seals, gaskets,
elastomer materials, coatings and other “wear parts” or consumables all of which are not warranted except as otherwise provided in the quotation or
sales form) will be (i) be built in accordance with the specications referred to in the quotation or sales form, if such specications are expressly made
a part of this Agreement, and (ii) free from defects in material and workmanship for a period of one (1) year from the date of installation or twelve
(12) months from the date of shipment (which date of shipment shall not be greater than eighteen (18) months after receipt of notice that the goods
are ready to ship), whichever shall occur rst, unless a longer period is specied in the product documentation (the “Warranty”).
Except as otherwise required by law, Seller shall, at its option and at no cost to Buyer, either repair or replace any product which fails to conform
with the Warranty provided Buyer gives written notice to Seller of any defects in material or workmanship within ten (10) days of the date when any
defects or non-conformance are rst manifest. Under either repair or replacement option, Seller shall not be obligated to remove or pay for the
removal of the defective product or install or pay for the installation of the replaced or repaired product and Buyer shall be responsible for all other
costs, including, but not limited to, service costs, shipping fees and expenses. Seller shall have sole discretion as to the method or means of repair
or replacement. Buyer’s failure to comply with Seller’s repair or replacement directions shall terminate Seller’s obligations under this Warranty and
render the Warranty void. Any parts repaired or replaced under the Warranty are warranted only for the balance of the warranty period on the parts
that were repaired or replaced. Seller shall have no warranty obligations to Buyer with respect to any product or parts of a product that have been:
(a) repaired by third parties other than Seller or without Seller’s written approval; (b) subject to misuse, misapplication, neglect, alteration, accident,
or physical damage; (c) used in a manner contrary to Seller’s instructions for installation, operation and maintenance; (d) damaged from ordinary
wear and tear, corrosion, or chemical attack; (e) damaged due to abnormal conditions, vibration, failure to properly prime, or operation without ow;
(f) damaged due to a defective power supply or improper electrical protection; or (g) damaged resulting from the use of accessory equipment not
sold or approved by Seller. In any case of products not manufactured by Seller, there is no warranty from Seller; however, Seller will extend to Buyer
any warranty received from Seller’s supplier of such products.
THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ANY AND ALL OTHER EXPRESS OR IMPLIED WARRANTIES, GUARANTEES,
CONDITIONS OR TERMS OF WHATEVER NATURE RELATING TO THE GOODS PROVIDED HEREUNDER, INCLUDING WITHOUT LIMITATION ANY
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WHICH ARE HEREBY EXPRESSLY DISCLAIMED AND
EXCLUDED. EXCEPT AS OTHERWISE REQUIRED BY LAW, BUYER’S EXCLUSIVE REMEDY AND SELLER’S AGGREGATE LIABILITY FOR BREACH OF
ANY OF THE FOREGOING WARRANTIES ARE LIMITED TO REPAIRING OR REPLACING THE PRODUCT AND SHALL IN ALL CASES BE LIMITED
TO THE AMOUNT PAID BY THE BUYER FOR THE DEFECTIVE PRODUCT. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY OTHER FORM OF
DAMAGES, WHETHER DIRECT, INDIRECT, LIQUIDATED, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY OR SPECIAL DAMAGES,
INCLUDING BUT NOT LIMITED TO LOSS OF PROFIT, LOSS OF ANTICIPATED SAVINGS OR REVENUE, LOSS OF INCOME, LOSS OF BUSINESS, LOSS
OF PRODUCTION, LOSS OF OPPORTUNITY OR LOSS OF REPUTATION.
Xylem Inc.
2881 East Bayard Street Ext., Suite A,
Seneca Falls, NY 13148
Phone: [phone] Fax: [phone]
www.xylem.com/goulds
Xylem is a trademark of Xylem Inc.
Goulds is a registered trademark of Goulds Pumps, Inc. and is used under license.
© 2022 Xylem Inc. IM052 Revision Number 6 May 2022

8
Modelo MCS
INSTRUCCIONES DE INSTALACIÓN, FUNCIONAMIENTO Y MANTENIMIENTO
MANUAL DE INSTRUCCIÓN
IM052R06

9
ÍNDICE
TEMA PÁGINA
Instrucciones de Seguridad................................................................................................................................................ 10
Notas Importantes ............................................................................................................................................................... 10
Instalación............................................................................................................................................................................. 10
Tubería de Succión.............................................................................................................................................................. 11
Tubería de Descarga ........................................................................................................................................................... 11
Rotación ................................................................................................................................................................................ 11
Operación............................................................................................................................................................................. 11
Mantenimiento..................................................................................................................................................................... 11
Desmontaje .......................................................................................................................................................................... 11
Montaje ................................................................................................................................................................................. 12
Cuadro de Identicación de Problemas ........................................................................................................................... 12
Lista de Partes....................................................................................................................................................................... 13
Cuadro de Aplicación del Sello Mecánico ....................................................................................................................... 13
Garantía Limitada................................................................................................................................................................. 14
Declaración de Conformidad............................................................................................................................................. 21
Número de modelo de la bomba:
Número de serie de la bomba:
Representante:
Número telefónico del representante:
Fecha de compra:
Fecha de Instalación:
Lecturas actuales de la puesta en servicio:
1 Ø 3 Ø L1-2 L2-3 L3-1
Amps: Amps:
Voltios: Voltios:

10
INSTRUCCIONES DE SEGURIDAD
PARA EVITAR LESIONES PERSONALES GRAVES O FA-
TALES, Y DAÑOS SIGNIFICATIVOS A LA PROPIEDAD,
LEA Y SIGA TODAS LAS INSTRUCCIONES DE SEGURI-
DAD QUE SE ENCUENTRAN EN ESTE MANUAL O EN
LA BOMBA.
ESTE MANUAL TIENE LA FUNCIÓN DE ASISTIRLO EN
LA INSTALACIÓN Y OPERACIÓN DE ESTA UNIDAD Y
DEBE CONSERVARSE CON LA BOMBA.
Éste es un SÍMBOLO DE ALERTA DE
SEGURIDAD. Cuando vea este símbolo
sobre la bomba o en el manual, localice
una de las siguientes palabras de señal-
ización y esté alerta ante posibles lesio-
nes personales o daños a la propiedad.
Advierte sobre los peligros que PRO-
VOCARÁN lesiones graves, muerte o
daños signicativos a la propiedad.
Advierte sobre los peligros que
PUEDEN PROVOCAR lesiones graves,
muerte o daños signicativos a la
propiedad.
Advierte sobre los peligros que PRO-
VOCARÁN o PUEDEN PROVOCAR
lesiones o daños a la propiedad.
AVISO: INDICA QUE EXISTEN INSTRUCCIONES
ESPECIALES MUY IMPORTANTES QUE
DEBEN RESPETARSE.
EXAMINE COMPLETAMENTE TODAS LAS IN-
STRUCCIONES Y ADVERTENCIAS ANTES DE REALI-
ZAR CUALQUIER TRABAJO EN ESTA BOMBA.
CONSERVE TODAS LAS CALCOMANÍAS.
ESTA UNIDAD NO SE ENCUENTRA
DISEÑADA PARA SER USADA CON
LÍQUIDOS O GASES INFLAMABLES.
ESTOS FLUIDOS PUEDEN ESTAR
PRESENTES EN ÁREAS CONTAMINA-
DAS.
DESCRIPCIÓN Y ESPECIFICACIONES
El modelo MCS es una bomba centrífuga de acopla-
miento cerrado y succión por el extremo, para servicio
general de transferencia de líquidos, aplicaciones de
refuerzo, etc. El extremo del líquido está totalmente
construido en acero inoxidable AISI tipo 304, troquelado
y soldado. Los impulsores están completamente encerra-
dos y no pueden ser ajustados a diámetros intermedios.
Las carcasas están equipadas con difusores para una
mayor ecacia y mínima carga radial del eje.
Todas las unidades cuentan con motores NEMA 48Y ó
56Y, con montaje de brida cuadrada y extensión roscada
del eje.
1. NOTAS IMPORTANTES
1.1. Inspeccione la unidad para asegurarse de que no
esté dañada. Informe inmediatamente al transpor-
tista/ distribuidor de cualquier daño.
1.2. El suministro eléctrico debe ser un circuito en ramal
separado, con fusibles o interruptores de circuito,
tamaño de cables, etc., en conformidad con los
códigos eléctricos locales y nacionales. Instale un
PELIGRO
ADVERTENCIA
PRECAUCIîN
ADVERTENCIA
Los fluidos peligrosos
pueden causar
incendios, quemaduras
o la muerte.
interruptor de desconexión de todo el circuito cerca
de la bomba.
Siempre desconecte la alimentación
eléctrica al manipular la bomba o los
controles.
1.3. Los motores deben estar cableados para el voltaje
adecuado. El diagrama de cableado del motor se
encuentra en la placa de identicación. El tamaño
del cable debe limitar la caída máxima de voltaje
a un 10% del voltaje nominal en las terminales del
motor; de lo contrario, la vida útil del motor y el des-
empeño de la bomba se verán reducidos.
1.4.Siempre utilice interruptores, contactores y arran-
cadores con capacidad expresada en caballos de
fuerza (HP).
1.5.Protección del motor
1.5.1.Monofásico: la protección térmica de las
unidades monofásicas a veces está incorpora-
da (consulte la placa de identicación). Si no
se provee protección incorporada, utilice un
contactor con la sobrecarga apropiada. Se
puede implementar la protección con fusibles.
1.5.2.Trifásico: provea protección de tres patas con
arrancador magnético y sobrecargas térmicas
de la capacidad adecuada.
1.6. Límites máximos de operación
Temperatura del líquido: 212°F (100°C) con sello
estándar
250°F (120°C) con sello
para alta temperatura
Presión de operación: 75 PSI con sello estándar
125 PSI con sellos
opcionales
Arranques por hora: 20, distribuidos en forma
pareja
1.7. La inspección y el mantenimiento regulares prolon-
garán la vida útil de la bomba. La frecuencia de estos
servicios debe basarse en el tiempo de operación.
Consulte la sección 8.
2. INSTALACIÓN
LA INSTALACIÓN DE LA BOMBA DEBE
INCLUIR UN DRENAJE ADECUADO O
ESTAR UBICADA DE MANERA TAL QUE OTROS EQUI-
POS O LA PROPIEDAD NO RESULTEN DAÑADOS EN
CASO DE QUE SE PRODUZCA ALGUNA FUGA. LA
BOMBA NO DEBE INSTALARSE POR ENCIMA DE LOS
EQUIPOS O DE LA PROPIEDAD A MENOS QUE SE
PROPORCIONE UN DRENAJE ADECUADO. SI IGNO-
RA ESTA ADVERTENCIA, PUEDE PROVOCAR DAÑOS
A LA PROPIEDAD.
SI AJUSTA DEMASIADO LOS SUJETA-
DORES DE LA CARCASA, PODRÍA DA-
ÑAR EL SUJETADOR Y PROVOCAR FUGAS Y DAÑOS
A LA PROPIEDAD.
2.1. Coloque la bomba tan cerca de la fuente de líquido
como sea posible (por debajo del nivel del líquido
para operación automática).
2.2. Proteja la bomba contra inundaciones y temperatu-
ras de congelamiento.
2.3. Deje espacio suciente para efectuar tareas de
mantenimiento y para ventilación.
PRECAUCIîN
ADVERTENCIA
ADVERTENCIA