Barmesa 2AHS Series Submersible Dewatering Pumps Instruction Manual
- June 17, 2024
- Barmesa
Table of Contents
Installation, Operation &
Maintenance Manual
Submersible Dewatering Pumps
2AHS series
0.5, 1 & 2 HP
@ 3450 RPM
IMPORTANT! – Read all instructions in this manual before operating or servicing a pump.
General Safety Information
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.
DANGER Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
WARNING Indicates an immnenty hazardous situation which, not avoided, MAY
result in death or serious injury.
CAUTION Indicates a potentially hazardous situation which, if not
avoided, MAY result in minor or moderate injury.
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.
ALL RETURNE DPRODUCTS MUST BECLEANED, SANITIZED, OR DECONTAM INATED PRIORTOS
HIPMENT , TO INSUREEMPLOYEES WILL NOT BEEXPOSED TO HEALTH HAZARDS INHANDLING
SAID MATERIAL. ALL APPLICABLE LAWS AND REGULATIONS SHALL APPLY.
WARNING
Installation, wiring, and junction connections must be in accordance with the
National Electric Code and all applicable state and local codes. Requirements
may vary depending on usage and location.
WARNING Installation and servicing is to be conducted by qualified
personnel only.
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.
DANGER 
Pumps build up heat and pressure
during operation. Allow time for pumps to cool before handling or servicing
the pump o r any accessory items associated with or near the pump.
DANGER This pump is not intended for use in swimming pools or water
installations where there is human contact with pumped fluid.
DANGER Risk of electric shock. To reduce risk of electric shock, always
disconnect pump from power source before handling any aspect of the pumping
system. Lock out power & tag.
WARNING Do not use these pumps in water over 104 °F. Do not exceed
manufactures recommended maximum performance, as this could cause the motor to
overheat.
DANGER Do not lift, carry or hang pump by the electrical cables. Damage
to the electrical cables can cause shock, burns or death. Never handle
connected power cords with wet hands. Use appropriate lifting device.
WARNING Ground Fault Circuit Interrupter (GFCI) to be used with plug-in
type power cord.
DANGER Failure to permanently ground the pump, motor and controls before
connecting to power can cause shock, burns or death.
DANGER These pumps are not to be installed in locations classified as
hazardous in accordance with the National Electric Code, ANSI/NFPA 70.
WARNING The Uniform Plumbing Code (UPC) 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.
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:
Model Number:…………………
Serial:………………………………
Amps:…………………………….. Volts:……………………………..
Phase:……………………………… HP:……………………………….
Specifications & Dimensions
| DISCHARGE: | 2″ NPT, vertical, adapter included. |
|---|---|
| SPHERICAL SLD HNDLG: | 1/4″ |
| LIQUID TEMPERATURE: | 104 °F (40 °C) max. |
| PUMP VOLUTE: | 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. |
| EAL: | 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, 3450
RPM. For continuous duty, with thermal protector IP68 in winding, insulation
class B.
STRAINER:| Polyvinyl chloride (PVC).
barmesapumps| Nylon 6.
barmesapumps| Available as “A” Automatic model or Manual operation (no level
control).
MODEL| PART No.| HP| VOLTS| PHASE| RPM
(Nominal)| MAX AMPS| CORD SIZE| A| B| C|
D| E| WEIGHT (pounds)
---|---|---|---|---|---|---|---|---|---|---|---|---|---
2AHS051| 62180101| 0.5| 115| 1| 3450| 6.6| 16AWG/3C| 13.86″| 9.57″| Ø7″|
4.25″| 4.61″| 26
2AHS051A| 62180102| 27
2AHS101| 62180103| 1| 115| 1| 3450| 12| 16 AWG/3C| 14.84″| 10.98″| Ø7″| 4.75″|
5.24″| 33
2AHS101A| 62180104| 34
2AHS103| 62180105| 1| 230| 3| 3450| 4| 16 AWG/4C| 14.84″| 10.98″| Ø7″| 4.75″|
5,24″| 33
2AHS203| 62180107| 2| 230| 3| 3450| 7| 16 AWG/4C| 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.
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. Ithe 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.
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.
Installation
WARNING Under no circumstances should cable be pulled while the pump is
being transported or installed. Attach a chain or rope to the grip and install
the pump.
-
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.
-
Install the pump at a location in the tank where there is the least turbulence.
-
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.
-
Do not permit end of discharge piping to be submerged, as backflow will result when the pump is shut down.
WARNING
Non-automatic pumps (models 2AHS), have an automatic operating system bump operating water level near the minimum operating level as the automatic cutoff switch incorporated inside the motor will be activated. To avoid dry operation, installan automatic operating system, as shown in Figure 1 and maintain a safe operating water level (C.W.L.: continuous water level = 90 mm). -
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.
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:
WARNING
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.
Grounding: Connect the green wire to ground.
Under no circumstances should the green wire be connected to the power supply.
DANGER Use short circuit breakers to prevent danger of electrical shock.
Electrical Wiring
Operation & Maintenance
Before Starting the Pump
- After completing installationmeasure the insulation resistance again as described in Installation.
- 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 nonautomatic (2AHS) pump:
-
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. -
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.
Maintenance
Check pressure, output, voltage, current and other specifications. Unusual
readings may indicate. Refer to Troubleshooting and correct as soon as
possible. Daily inspections:
- Check current and ammeter fluctuation daily. If ammeter fluctuation is high, 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.
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 oillay 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
Table 1. (Note: replacement schedule is based on normal operating conditions)
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.
WARNING
Be sure to cut off power source before disassembly.
-
Remove pump casing bolts, raise the motor section and remove pump casing.
-
Remove shaft head bolt and impeller.
-
Remove oil filler plug and drain lubricating oil.
-
Remove intermediate casing bolts and intermediate oil chamber. (Remember that any lubricating oil remaining in the mechanical seal chamber will flow out.)
-
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: -
During re-assembly, rotate the impeller by hand and check for smooth rotation. If rotation is not smooth, perform steps (3) through (5) again.
-
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.
Table 1
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
Repair Parts
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.
Parts List
2AHS 0.5 HP
| ITEM | NAME | MATERIAL | PHOTO |
|---|---|---|---|
| 1 | CABLE | SJTOW/STOW | |
| 2 | HANDLE | NYLON 6 | |
| 3 | MOTOR COVER | ADC12 | |
| 4 | BRACKET | STEEL | |
| 5 | MOTOR HOUSING + STATOR | ADC12 + STEEL | |
| 6 | SHAFT WITH ROTOR | SUS410 | 
7| OIL CHAMBER| EN-GJL-200|
8| MECHANICAL SEAL| UPPER: CA/CE LOWER: SIC/SIC|
11| IMPELLER| HYTREL|
12| PUMP CASING| EN-GJL-200|
13| PROTECTOR (1 PHASE)| | 
13| PROTECTOR (3 PHASE)| |
14| CAPACITOR| |
15| BEARING| |
16| STRAINER| PVC|
17| O- RING| NBR|
21| FLOAT SWITCH (OPTIONAL)| |
25| PLASTIC HOSE TAML| |
27| FLANGE| EN-GJL-200|
28| AGITATOR| SMF5030|
ITEM| NAME| MATERIAL
---|---|---
18| GASKET| NBR
18-1| GASKET| NBR
18-2| GASKET| NBR
19| SCREW| SUS 304
19-1| SCREW| SUS 304
19-2| SCREW| SUS 304
19-3| SCREW| SUS 304
19-4| SCREW| STEEL
19-5| SCREW| SUS 304
19-6| SCREW| SUS 304
19-7| SCREW| STEEL
20| M8 FLAT WASHER| SUS 304
20-1| FLAT WASHER| SUS 304
20-2| M8 SPRING WASHER| SUS 304
22| SCREW WITH O-RING| SUS 304 / NBR
23| CABLE SEAT| NYLON 66 / NBR
24| EARTH LINE AND SCREW| STEEL
26| T ADAPTER (OPTIONAL)|
29| INSULATING PAPER|
31| M8 NUT| AISI 304
34| CORRUGATED SPRING| STEEL
| ITEM | NAME | MATERIAL | PHOTO |
|---|---|---|---|
| 1 | CABLE | SJTOW/STOW | |
| 2 | HANDLE | NYLON 6 | |
| 3 | MOTOR COVER | ADC12 | |
| 4 | BRACKET | STEEL | |
| 5 | MOTOR HOUSING + STATOR | ADC12 + STEEL | |
| 6 | SHAFT WITH ROTOR | SUS410 | 
7| OIL CHAMBER| EN-GJL-200|
8| MECHANICAL SEAL| UPPER: CA/CE
LOWER: SIC/SIC|
11| IMPELLER| HYTREL|
12| PUMP CASING| EN-GJL-200|
13| PROTECTOR (1 PHASE)| | 
13| PROTECTOR (3 PHASE)| |
14| CAPACITOR| |
15| BEARING| |
16| STRAINER| PVC|
17| O- RING| NBR|
21| FLOAT SWITCH (OPTIONAL)| |
25| PLASTIC HOSE TAML| |
27| FLANGE| EN-GJL-200|
28| AGITATOR| SMF5030|
ITEM| NAME| MATERIAL
---|---|---
18| GASKET| NBR
18-1| GASKET| NBR
18-2| GASKET| NBR
19| SCREW| SUS 304
19-1| SCREW| SUS 304
19-2| SCREW| SUS 304
19-3| SCREW| SUS 304
19-4| SCREW| STEEL
19-5| SCREW| SUS 304
19-6| SCREW| SUS 304
19-7| SCREW| STEEL
19-8| SCREW| STEEL
20| M8 FLAT WASHER| SUS 304
20-1| FLAT WASHER| SUS 304
20-2| M8 SPRING WASHER| SUS 304
22| SCREW WITH O-RING| SUS 304 / NBR
23| CABLE SEAT| NYLON 66 / NBR
24| EARTH LINE AND SCREW| STEEL
26| T ADAPTER (OPTIONAL)|
29| INSULATING PAPER|
34| CORRUGATED SPRING| STEEL
| ITEM | NAME | MATERIAL | PHOTO |
|---|---|---|---|
| 1 | CABLE | SJTOW/STOW | |
| 2 | HANDLE | NYLON 6 | |
| 3 | MOTOR COVER | ADC12 | |
| 4 | BRACKET | STEEL | |
| 5 | MOTOR HOUSING + STATOR | ADC12 + STEEL | |
| 6 | SHAFT WITH ROTOR | SUS410 | 
7| OIL CHAMBER| EN-GJL-200|
8| MECHANICAL SEAL| UPPER: CA/CE LOWER: SIC/SIC|
11| IMPELLER| HYTREL|
12| PUMP CASING| EN-GJL-200|
13| PROTECTOR (1 PHASE)| | 
13| PROTECTOR (3 PHASE)| |
14| CAPACITOR| |
15| BEARING| |
16| STRAINER| PVC|
17| O- RING| NBR|
21| FLOAT SWITCH (OPTIONAL)| |
25| PLASTIC HOSE TAML| |
27| FLANGE| EN-GJL-200|
28| AGITATOR| SMF5030|
ITEM| NAME| MATERIAL
---|---|---
18| GASKET| NBR
18-1| GASKET| NBR
18-2| GASKET| NBR
19| SCREW| SUS 304
19-1| SCREW| SUS 304
19-2| SCREW| SUS 304
19-3| SCREW| SUS 304
19-4| SCREW| STEEL
19-5| SCREW| SUS 304
19-6| SCREW| SUS 304
19-7| SCREW| STEEL
19-8| SCREW| STEEL
20| M8 FLAT WASHER| SUS 304
20-1| FLAT WASHER| SUS 304
20-2| M8 SPRING WASHER| SUS 304
22| SCREW WITH O-RING| SUS 304 / NBR
23| CABLE SEAT| NYLON 66 / NBR
24| EARTH LINE AND SCREW| STEEL
26| T ADAPTER (OPTIONAL)|
29| INSULATING PAPER|
34| CORRUGATED SPRING| STEEL
Troubleshooting Chart
Risk of electric shock. Always disconnect the pump from the power source before handling inspections or repairs.
| 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 stopafter a while.| (1) Prolonged dry operation has
activatedmotor protector and caused pump to stop
(2) High liquid temperature has activatedmotor 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
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.
BARMESA PUMPS FACTORY WARRANTY
Barmesa Pumps warrants that products of our manufacture will be free of
defects in material and workmanship under normal use and service for 18 months
from date of manufacture or 12 months from installation date whichever occurs
first. This warranty gives you specific legal rights, which vary from state to
state.
This warranty is a limited warranty, and no warranty related claims of any
nature whatsoever shall be made against Barmesa Pumps, until the ultimate
consumer or his/her successor notifies us in writing of the defect and
delivers the product and/or defective part(s} freight prepaid to our factory
or nearest authorized service station as instructed by Barmesa Pumps. THERE
SHALL BE NO FURTHER UABILITY, WHETHER BASED ON WARRANTY, NEGLIGENCE OR
OTHERWISE. PRODUCT SHALL BE EITHER REPLACED OR REPAIRED AT THE ELECTION OF
BARMESA PUMPS. Guarantees relating to performance specifications provided in
addition to the foregoing material and workmanship warranties on a product
manufactured by Barmesa Pumps, if any, are subject to possible factory
testing. Any additional guarantees, in the nature of certified performance
specifications or time frame must be in writing and such writing must be
signed by our authorized factory manager at time of order placement and/or at
time of quotation. Due to inaccuracies in field testing and should a conflict
arises between the results of field testing conducted by or for the user,
Barmesa Pumps reserves the right to have the product returned to our factory
for additional testing. This warranty shall not apply when damage is caused by
{1) improper installation, (2) improper voltage. (3) lightning, (4) excessive
sand or other abrasive material, {5) corrosion build-up due to excessive
chemical content of {6) uncontrollable acts of god. Any modification of the
original equipment will also void the warranty. We will not be responsible for
loss, damage or labor cost due to interruption of service caused by defective
pumps, parts or systems. Barmesa Pumps will not accept charges incurred by
others without our prior written approval.
This warranty ts void if our inspection reveals the product was used in a
manner inconsistent with normal industry practice and/or our specific
recommendations. The purchaser is responsible for communication of all
necessary information regarding the application and use of the product.
UNDER NO CIRCUMSTANCES WILL WE BE RESPONSIBLE FOR ANY OTHER DIRECT OR
CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO TRAVEL EXPENSES,
CONTRACTOR FEES, UNAUTHORIZED REPAIR SHOP EXPENSES, OST PROFITS, LOST INCOME,
LABOR CHARGES, DELAYS IN PRODUCTION, IDLE PRODUCTION, WHICH DAMAGES ARE CAUSED
BY ANY DEFECTS IN MATERIAL AND/OR WORKMANSHIP AND/OR DAMAGE OR DELAYS IN
SHIPMENT. THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY OTHER EXPRESS OR IMPLIED
WARRANTY. No rights extended under this warranty shall be assigned to any
other person, whether by operation of lawor otherwise, without our prior
written approval.
IMPORTANT!
If you have a claim under the provision of the warranty, contact Barmesa Pumps
or your authorized Barmesa Pumps Distributor:
warranty@barmesapumps.com
www.barmesapumps.com
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