Barmesa Pumps 2AHS051 Instruction manual

Installation, Operation &
Maintenance Manual
Submersible Dewatering Pumps
2AHS
0.5, 1 & 2 HP
@ 3500 RPM
IMPORTANT! - Read all instructions in this manual before operating or servicing
a pump.
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Before installation, read the following
instructions carefully. Failure to
follow instruction and safety
information could cause serious
bodily injury, death and/or property
damage. Each Barmesa product is
carefully inspected to insure proper
performance. Closely following these
instructions will eliminate potential
operating problems, assuring years
of trouble-free service.
01
General Safety Information
IMPORTANT! - Barmesa Pumps is not
responsible for losses, injury or
death resulting from failure to
observe these safety precautions,
misuse, abuse or misapplication of
pumps or equipment.
Installation, wiring, and
ju nc t io n co nn ec t io ns m us t be in
accordance with the National Electric
Code and all applicable state and local
codes. Requirements may vary depending
on usage and location.
WARNING
I n s t a l l a t i o n a n d
servicing is to be conducted by
qualified personnel only.
WARNING
D o n o t u s e t h e s e
pumps in water over 104 °F. Do not
exceed manufactures recommended
maximum performance, as this could
cause the motor to overheat.
WARNING
Ground Fault Circuit
Interrupter (GFCI) to be used with
plug-in type power cord.
WARNING
A L L R E T U R N E D
P R O D U C T S M U S T B E
CLEANED, SANITIZED, OR
DECO N TA M I N ATED P R I O R TO
SHIPMENT, TO INSURE EMPLOYEES
WILL NOT BE EXPOSED TO HEALTH
HAZARDS IN HANDLING SAID
MATERIAL. ALL APPLICABLE LAWS
AND REGULATIONS SHALL APPLY.
Keep clear of suction and
discharge openings. Do not
insert fingers in pump with
power connected; the rotating cutter
and/or impeller can cause serious
injuty.
Always wear eye protection
when working on pumps. Do
not wear loose clothing that
may become entangled in moving
parts.
Pumps build up heat
and pressure during
operation. Allow time
fo r p u mp s t o c o ol
DANGER
before handling or servicing the
p u m p o r a n y a ccessor y i t e m s
associated with or near the pump.
Risk of electric shock. To
reduce risk of electric shock,
always disconnect pump
from power source before
DANGER
handling any aspect of the pumping
system. Lock out power & tag.
Do not lift, carry or
hang pump by the electrical
c a b l e s . D a m a g e t o t h e
electrical cables can cause
DANGER
shock, burns or death. Never handle
connected power cords with wet
hands. Use appropriate lifting device.
Failure to permanently
ground the pump, motor and
controls before connecting
to power can cause shock,
DANGER
burns or death.
The Uniform Plumbing
Code (UP C) states that sewage
systems shall have an audio and visual
alarm that signals a malfunction of the
systems, that are required to reduce
the potencial for property damage.
WARNING
IMPORTANT! - Prior to installation,
record Model Number, Serial, Amps,
Voltage, Phase and HP from pump
name plate for the future reference.
Also record the Voltage and Current
Readings at Startup:
WARNING
Indicates an immi-
nently hazardous situation which, if
not avoided, WILL result in death or
serious injury.
Indicates an immi-
nenty hazardous situation which, if
not avoided, MAY result in death or
serious injury.
Indicates a potentially
hazardous situation which, if not
avoided, MAY result in minor or
moderate injury.
DANGER
CAUTION
T h i s p u m p i s n o t
i n t e n d e d f o r u s e i n
swimming pools or water
installations where there is
DANGER
human contact with pumped fluid.
These pumps are not to
be installed in locations
classified as hazardous in
accordance with the National
Electric Code, ANSI/NFPA 70.
DANGER
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Model Number:_____________________
Serial:_____________________________
Amps:___________ Volts:____________
Phase:____________ HP:_____________

MODEL PART No. HP VOLTS PHASE RPM
(Nominal)
MAX
AMPS
CORD
SIZE A B C D E WEIGHT
(pounds)
2AHS051 62180101 27
2AHS051A 62180102 28
2AHS101 62180103 33
2AHS101A 62180104 34
2AHS103 70090005 1 230 3 3500 3 16 AWG/3C 14.84" 10.98" Ø7" 4.75" 5,24" 34
2AHS203 70090007 2 230 3 3500 7 14 AWG/3C 18.27" 12.32" Ø7.5" 5.13" 6.1" 42
A = Automatic Float Switch. A control panel is needed for the 3 phase pumps to operate in automatic.
10.98"14.84"16 AWG/3C123500
Ø7" 4.25" 4.61"
5.24"4.75"Ø7"
3500 6 16AWG/3C 13.86" 9.57"0.5
1
115
115
1
1
02
Specifications & Dimensions
DISCHARGE: 2" NPT, vertical, adapter included.
SPHERICAL SLD HNDLG: 1/2"
LIQUID TEMPERATURE: 104 °F (40 °C) max.
PUMP BODY: Cast iron FC-200.
MOTOR HOUSING: Aluminum alloy ADC12.
OIL CHAMBER: Cast iron FC-200.
IMPELLER: 8 vane, semi-open Vortex. Hytrel® thermoplastic elastomer.
SHAFT: 410 series stainless steel.
HARDWARE: 304 series stainless steel.
O-RINGS: .Nitrile rubber (NBR)
PAINT: Air dry enamel, water based.
SEAL: Double mechanical, oil filled chamber. Upper part of carbon-ceramic, lower part of
silicone carbide. Stainless steel hardware.
CORD ENTRY: 15 ft of neoprene cord , sealed against moisture.
BEARINGS: Ball, single row, permanently oil lubricated for 60,000 hours of work. Designed for
radial and axial loads.
MOTOR: Dry type submersible motor, 1 & 3 phase, 115 & 230 volts, 60 Hz, 3500 RPM. For
continuous duty, with thermal protector IP68 in winding, insulation class B.
STRAINER: Polyvinyl chloride (PVC).
HANDLE: Nylon 6.
PUMP OPERATION: Available as "A" Automatic model or Manual operation (no level control).
AAA
DDD
BBB
EEE
CCC
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Under no circumstances
should cable be pulled while the
pum p i s bein g tra nsp or ted o r
installed. Attach a chain or rope to the
grip and install the pump.
WARNING
Installation
Receiving inspection
Upon receiving the pump, it should
be inspected for damage or
shortages. If damage has occurred,
file a claim immediately with the
company that delivered the pump. If
the manual is removed from the
packaging, do not lose or misplace.
Storage
Any product that is stored for a
period longer than six (6) months
from the date of purchase should be
bench tested prior to installation. A
bench test consists of, checking the
impeller to assure it is free turning
and a run test to assure the motor
(and switch if provided) operate
properly.
03
Installation
Before Installation
Insulation resistance measurement
With the motor and cable (excluding
the power supply cable) immersed in
water, use a megger to measure the
insulation resistance between
ground and each phase of the motor,
and again between each phase of the
motor. The megger should indicate
an insulation resistance of not less
than 20 mega ohms. While making
the measurement, keep the power
supply cable off the ground. We
recommend that an auxiliary
pump be kept on hand in case of
emergency.
1.This pump must not be installed
on its side or operated in a dry
condition. Ensure that it is
installed upright on a secure base.
2.Install the pump at a location in
the tank where there is the least
turbulence.
3.If there is a flow of liquid inside
the tank, support the piping
where appropriate. Install piping
so that air will not be entrapped. If
piping must be installed in such a
way that air pockets are
unavoidable, install an air release
valve wherever such air pockets
are most likely to develop.
4.Do not permit end of discharge
piping to be submerged, as
backflow will result when the
pump is shut down.
Non-automatic pumps
(models 2AHS), have an automatic
operating system bump operating
water l eve l nea r t he m ini mum
operating level as the automatic cut-
off switch incorporated inside the
motor will be activated. To avoid dry
operation, install an automatic
operating system, as shown in Figure 1
and maintain a safe operating water
level (C.W.L.: continuous water level =
90 mm).
WARNING
5.For automatic pumps (models
2AHS-A), install the floats as
shown in figure 2. The pump may
not start if a floats switch touches
the wall of the water tank or the
piping. Install the floats so that
this will not happen.
C.W.L.
Figure 1
Figure 2
ON
OFF
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Wiring:
a) Wire as indicated for the
appropiate start system as shown
in figure 3.
b) Loose connections will stop the
pump. Make sure all electrical
connections are secure.
Cable:
c) Never let the end of
the cable contact water.
d) If the cable is extended, do not
immerse the splice in water.
e) Fasten the cable to the discharge
piping with tape or vinyl strips.
f) Install the cable so that it will not
overheat. Overheating caused by
coiling the cable and exposing it to
direct sunlight.
WARNING
Grounding:
Connect the green wire to ground.
Under no circumstances should the
green wire be connected to the
power supply.
U s e s h o r t c i r c u i t
breakers to prevent danger of
electrical shock.
DANGER

04
Electrical Wiring
Figure 3
Capacitor
Protector
Main
Coil
Black
(Brown)
White
(Blue)
(Green/Yellow)
Green
Frame
Grounding
Ground
Starting
Coil
Single phase
Black
(Black)
White
(Blue)
Red
(Brown)
R
S
T
U
V
W
U2
V2
W2
Overload
Protector
Green
(Green/Yellow)
Ground
Frame
Grounding
Three phase
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05
Operation & Maintenance
Before Starting the Pump
1) After completing installation,
measure the insulation resistance
again as described in Installation.
2) Check water level. If the pump is
operated continuously for an
extended period of time in a dry
condition or at the lowest water
level, the motor protector will be
activated. Constant repetition of
this action will shorten pump
service life. Do not start the pump
again in such a situation until
after the motor has completely
cooled.
Test operation
Automatic (2AHS-A) and non-
automatic (2AHS) pump:
1) Turn the operating switch on and
off a couple of times to check for
normal pump start.
For the 2AHS-A:
Floating switch must be raised for
the pump to start.
2) Next, check direction and rotation.
If discharge volume is low or
unusual sounds are heard when
the pump is operating, rotation
has been reversed. When this
happens, reverse two of the wires.
Daily inspections:
1) Check current and ammeter
fluctuation daily. If ammeter
fluctuation is great, even though
within the limits of pump rating,
foreign matter may be clogging
the pump. If the quantity of liquid
discharged falls suddenly, foreign
matter may be blocking the
suction inlet.
Maintenance
Check pressure, output,
voltage, current and other
specifications. Unusual
readings may indicate. Refer to
Troubleshooting and correct as
soon as possible.
Monthly inspections:
Measure the insulation resistance.
The value should be more than 1M
ohm. If resistance starts to fall rapidly
even with an initial indication of over
1M ohm, this may be an indication of
trouble and repair work is required.
Annual inspections:
To extend the service life of the
mechanical seal, replace the oil in the
mechanical seal chamber once a
year. Water mixed with the oil or
cloudy textures are indications of a
defective mechanical seal requiring
replacement. When replacing the oil,
lay the pump on its side with filler
plug on top. Inject suitable amount
turbine oil no. 32 (ISO VG-32).
Inspections at 3-5 year intervals:
Conduct an overhaul of the pump.
These intervals will preclude the
possibility of future trouble.
Parts that will need to be replaced:
Replace the appropriate part when
the following conditions are
apparent. See figure 4. (Note:
replacement schedule is based on
normal operating conditions)
REPLACEABLE
PART Mechanical seal Oil filler plug
gasket Lubricating oil O-ring
REPLACEAMENT
GUIDE
Whenever oil in
mechanical seal
chamber is
clouded
Whenever oil is
replaced or
inspected
Whenever
clouded or dirty
Whenever pump
is overhauled
FREQUENCY Annually Every 6 months Every 6 months Annually
Figure 4
Disassembly
When disassembling pump, have a
piece of cardboard or wooden board
ready to place the different parts on
as you work. Do not pile parts on top
of each other. They should be laid out
neatly in rows. The o-ring and gasket
cannot be used again once they are
removed. Have replacement parts
ready. Disassemble in the following
order, referring to the sectional view.
Be sure to cut off power
source before disassembly.
WARNING
1. Remove pump casing bolts, raise
the motor section and remove pump
casing.
2. Remove shaft head bolt and
impeller.
4. Remove intermediate casing bolts
and intermediate oil chamber.
(Remember that any lubricating oil
remaining in the mechanical seal
chamber will flow out.)
3. Remove oil filler plug and drain
lubricating oil.
5. Carefully remove mechanical seal,
taking care not to scratch sliding
surface or motor shaft.
Assembly
Re-assemble in reverse order of
disassembly. Be careful of the
following points:
6. During re-assembly, rotate the
impeller by hand and check for
smooth rotation. If rotation is not
smooth, perform steps (3) through
(5) again.
7. Upon completion of re-assembly
step 1 rotate the impeller by hand
from the suction the suction inlet
and check that it rotates smoothly
without touching the suction cover
before operating the pump.
Please obtain o-rings, packing, shaft
seals and other parts from pump
dealer.
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06
Repair Parts
Figure 5
For repair part please supply: Model Number and Serial as shown on Name Plate, and Part Description and Part Number as shown
on Parts List.
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2AHS 0.5 HP

07
Parts List
For repair part please supply: Model Number and Serial as shown on Name Plate, and Part Description and Part Number as shown
on Parts List.
ITEM NAME MATERIAL ITEM NAME MATERIAL
18 GASKET NBR 19-6 SCREW SUS 304
18-1 GASKET NBR 19-7 SCREW SUS 304
18-2 GASKET NBR 20 WASHER SUS 304
19 SCREW SUS 304 22 SCREW WITH O-RING
19-1 SCREW SUS 304 23 CABLE SEAT
19-2 SCREW SUS 304 24 EARTH LINE AND SCREW
19-3 SCREW SUS 304 26 "T" ADAPTER (OPTIONAL)
19-4 SCREW STEEL 29 INSULATING PAPER
19-5 SCREW SUS 304 34 CORRUGATED SPRING STEEL
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2AHS 0.5 HP
ITEM NAME MATERIAL PHOTO ITEM NAME MATERIAL PHOTO
1 CABLE H07/UL 13 PROTECTOR
(1 PHASE)
2 HANDLE NYLON 6 13 PROTECTOR
(3 PHASE)
3MOTOR
COVER ADC12 14 CAPACITOR
4 BRACKET SECC 15 BEARING
5MOTOR HOUSING
+ STATOR ADC12 16 STRAINER PVC
6SHAFT WITH
ROTOR SUS410 17 O-RING NBR
7 OIL CHAMBER CAST IRON 21 FLOAT SWITCH
(OPTIONAL)
8MECHANICAL
SEAL
UPPER: CA/CE
LOWER: SIC/SIC 25 PLASTIC HOSETAIL
11 IMPELLER HYTREL 27 FLANGE FC-15
12 PUMP CASING CAST IRON 28 AGITATOR SMF5030
(OPTIONAL)

Figure 6
2AHS 1 HP
For repair part please supply: Model Number and Serial as shown on Name Plate, and Part Description and Part Number as shown
on Parts List.
08
Repair Parts
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09
Parts List
2AHS 1 HP
For repair part please supply: Model Number and Serial as shown on Name Plate, and Part Description and Part Number as shown
on Parts List.
ITEM NAME MATERIAL ITEM NAME MATERIAL
18 GASKET NBR 19-6 SCREW SUS 304
18-1 GASKET NBR 19-7 SCREW SUS 304
18-2 GASKET NBR 20 WASHER SUS 304
19 SCREW SUS 304 22 SCREW WITH O-RING
19-1 SCREW SUS 304 23 CABLE SEAT
19-2 SCREW SUS 304 24 EARTH LINE AND SCREW
19-3 SCREW SUS 304 26 "T" ADAPTER (OPTIONAL)
19-4 SCREW STEEL 29 INSULATING PAPER
19-5 SCREW SUS 304 34 CORRUGATED SPRING STEEL
ITEM NAME MATERIAL PHOTO ITEM NAME MATERIAL PHOTO
1 CABLE H07/UL 13 PROTECTOR
(1 PHASE)
2 HANDLE NYLON 6 13 PROTECTOR
(3 PHASE)
3MOTOR
COVER ADC12 14 CAPACITOR
4 BRACKET SECC 15 BEARING
5MOTOR HOUSING
+ STATOR ADC12 16 STRAINER PVC
6SHAFT WITH
ROTOR SUS410 17 O-RING NBR
7 OIL CHAMBER CAST IRON 21 FLOAT SWITCH
(OPTIONAL)
8MECHANICAL
SEAL
UPPER: CA/CE
LOWER: SIC/SIC 25 PLASTIC HOSETAIL
11 IMPELLER HYTREL 27 FLANGE FC-15
12 PUMP CASING CAST IRON 28 AGITATOR SMF5030
(OPTIONAL)
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Figure 7
2AHS 2 HP
For repair part please supply: Model Number and Serial as shown on Name Plate, and Part Description and Part Number as shown
on Parts List.
10
Repair Parts
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ITEM NAME MATERIAL PHOTO ITEM NAME MATERIAL PHOTO
1 CABLE H07/UL 12 PUMP CASING CAST IRON
2 HANDLE NYLON 6 13 PROTECTOR
(1 PHASE)
3 MOTOR COVER ADC12 13 PROTECTOR
(3 PHASE)
4 BRACKET SECC 14 CAPACITOR
5MOTOR HOUSING
+ STATOR ADC12 15 BEARING
6SHAFT WITH
ROTOR SUS410 16 STRAINER PVC
7 OIL CHAMBER A A356 17 O-RING NBR
7-1 OIL CHAMBER B A356 21 FLOAT SWITCH
(OPTIONAL)
8MECHANICAL
SEAL
UPPER: CA/CE
LOWER: SIC/SIC 25 PLASTIC HOSETAIL
10 OIL SEAL NBR 27 FLANGE FC-15
11 IMPELLER HYTREL 28 AGITATOR SMF5030
(OPTIONAL)
11
Parts List
For repair part please supply: Model Number and Serial as shown on Name Plate, and Part Description and Part Number as shown
on Parts List.
ITEM NAME MATERIAL ITEM NAME MATERIAL
18 GASKET NBR 19-6 SCREW SUS 304
18-1 GASKET NBR 19-7 SCREW SUS 304
18-2 GASKET NBR 20 WASHER SUS 304
19 SCREW SUS 304 22 SCREW WITH O-RING
19-1 SCREW SUS 304 23 CABLE SEAT
19-2 SCREW SUS 304 24 EARTH LINE AND SCREW
19-3 SCREW SUS 304 26 "T" ADAPTER (OPTIONAL)
19-4 SCREW STEEL 29 INSULATING PAPER
19-5 SCREW SUS 304 34 CORRUGATED SPRING STEEL
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2AHS 2 HP

12
Troubleshooting Chart
Risk of electric shock. Always disconnect the pump from the power source before handling inspections or repairs.
NOTE: Barmesa Pumps assumes no responsibility for damage or injury due to disassembly in the field. Disassembly of the pumps or supplied accessories other
than at Barmesa Pumps or its authorized service centers, automatically voids warranty.
Symptom Possible Cause(s) Corrective Action
Does not start. Starts,
but imediately stops.
(1) Power failure
(2) Large discrepancy between power
source and voltage
(3) Significant drop in voltage
(4) Motor phase malfunction
(5) Electric circuit connection faulty
(6) Faulty connection of control circuit
(7) Fuses is blown
(8) Faulty magnetic switch
(9) Water is not at level indicated by float
(10) Float is not in appropriate level
(11) Float is not effective
(12) Short circuit breaker is functioning
(13) Foreign matter clogging pump
(14) Motor burned out
(15) Motor bearing broken
(1)~(3) Contact electric power company
and devise counter-measures
(4) Inspect electric circuit
(5) Correct wiring
(6) Inspect connections and magnetic coil
(7) Check circuit then replace fuse
(8) Replace with correct one
(9) Raise water level
(10) Adjust the position of float
(11) Repair or replace
(12) Repair location of short circuit
(13) Remove foreign matter
(14) Repair or replace
(15) Repair or replace
Operates, but stops
after a while.
(1) Prolonged dry operation has activated
motor protector and caused pump to stop
(2) High liquid temperature has activated
motor protector and caused pump to stop
(3) Reverse rotation
(1) Raise water level to C.W.L.
(2) Lower liquid temperature
(3) Correct rotation
Does not pump.
Inadequate volume.
(1) Reverse rotation
(2) Significant drop in voltage
(3) Operating a 60 Hz pump with 50 Hz
(4) Discharge head is high
(5) Large piping loss
(6) Low operating water level causes air
suction
(7) Leaking from discharge piping
(8) Clogging of discharge piping
(9) Foreign matter in suction inlet
(10) Foreign matter clogging pump
(11) Worn impeller
(1) Correct rotation (see Operation)
(2) Contact electric power company
(3) Check nameplate
(4) Recalculate and adjust
(5) Recalculate and adjust
(6) Raise water level or lower pump
(7) Inspect, repair
(8) Remove foreign matter
(9) Remove foreign matter
(10) Remove foreign matter
(11) Replace impeller
Over current.
(1) Unbalanced current and voltage
(2) Significant voltage drop
(3) Motor phase malfunction
(4) Operating 50 Hz pump on 60 Hz
(5) Reverse rotation
(6) Low head. Excessive volume of water
(7) Foreign matter clogging pump
(8) Motor bearing is worn out or damaged
(1) Contact electric power company
(2) Contact electric power company and
devise counter-measure
(3) Inspect connections and magnetic
switch
(4) Check nameplate
(5) Correct rotation (see Operation 2)
(6) Replace pump with high head pump
(7) Remove foreign matter
(8) Replace bearing
Pump vibrates;
excessive operating
noise.
(1) Reverse rotation
(2) Pump clogged with foreign matter
(3) Piping resonates
(4)Strainer is closed too far
(1) Correct rotation
(2) Disassemble and remove foreign
matter
(3) Improve piping
(4) Open strainer
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