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CMSP-PM1
Installation and Operating Instructions
GRUNDFOS INSTRUCTIONS
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English (GB)
English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
1. Symbols used in this docume nt
2. System sizing
3. Mechanical installation
4. Electrical installation
5. Startup
6. Alarms
7. Fault finding
8. CMSP-PM1 Pictorial Diagram
Warning
Prior to installation, read this
document and the quick guide.
Installation and operation must comply
with local regulations and accepted
codes of good practice.
Warning
The use of this product requires
experience with and knowledge of the
product.
Persons with reduced physical,
sensory or mental capabilities must not
use this product, unless they are under
supervision or have b een instructed in
the use of the product by a person
responsible for their safety.
Children must not use or play with this
product.
1. Symbols used in this document
Warning
If these safety instructions are not
observed, it may result in personal
injury.
Warning
If these instructions are not observed,
it may lead to electric shock with
consequent risk of serious personal
injury or death.
If these safety instructions are not
Caution
observed, it may result in malfunction
or damage to the equipment.
Notes or instructions that make the job
Note
easier and ensure sa fe operation.
2. System sizing
Warning
The system in which the CM Booster is
incorporated must be designed for the
maximum pump pressure.
The default setting will cause the pump
Caution
not to stop until it reaches its maximum
pressure.
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3. Mechanical installation
Warning
Before starting work on the CM Booster,
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4. Electrical installation
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6
Check that the supply voltage and frequency
correspond to the values stated on the nameplate.
make sure that the power supply has
been switched off and that it cannot be
accidentally switched on.
Warning
The electrical installation should be
carried out by an authorised person in
accordance with local regulations.
Warning
Before making any connections in the
unit, make sure that the power supply
has been switched off and that it
cannot be accidentally switched on.
The unit must be connected to an
external mains switch with a contact
gap of at least 3 mm in all poles.
As a precaution, the unit must be
connected to a socket with earth
connection.
We recommend to fit the permanent
installation with an earth leakage
circuit breaker (ELCB) with a tripping
current < 30 mA.
5. Startup
Do not start the pump until it has been
Caution
filled with liquid.
6. Alarms
If a dry-running alarm has been
activated, find t he cause before the
Caution
pump is restarted in order to prevent
damage to the pump.
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7. Fault finding
Warning
Before starting work on the pump, make sure that the power supply has been switched off
and that it cannot be accidentally switched on.
Fault Cause Remedy
1. The green "Power
on" indicator light is
off.
2. The green "Pump
on" indicator light is
on, but the pump
does not start.
3. The pump does not
start when wa ter is
consumed.
The "Pump on"
indicator light is off.
4. Frequent
starts/stops.
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. The pump does not
stop.
6. The red "Alarm"
indicator light is
permanently on.
7. The red "Alarm"
indicator light is
flashing.
a) The fuses in the electric installation
have burnt.
b) The earth leakage circuit breaker or
the voltage-operated circuit breaker
has tripped.
c) No power supply.
d) The PM unit is defective.
a) The power supply to the pump is
disconnected after the PM unit.
b) The motor protection of the pump
has tripped due to overload.
c) The pump is defective.
d) The PM unit is defective.
a) Too big difference in height between
the PM unit and the tapping point.
b) The PM unit is defective.
a) Leakage in the pipework.
b) Leaky non-return valve.
c) A valve close to the PM 1 outlet has
been closed.
a) The pump cannot deliver the
necessary discharge pressure.
b) A PM unit with too high start
pressure is installed.
c) The PM unit is defective.
d) The non-return valve is stuck in
open position.
a) Dry running. The pump needs water.
b) The power supply to the pump is
disconnected after the PM unit.
c) The motor protection of the pump
has tripped due to overload.
d) The pump is defective.
e) The PM unit is
a) Cycling. A tap has not been closed
entirely after use. Check that all taps have been closed.
defective.
Replace the fuses. If the new fuses
also burn, check the electric
installation.
Cut in the circuit breaker.
Contact the power supply company.
Repair or replace the PM unit.
Check the plug and cab
and check if the built-in circuit breaker
of the pump is switched off.
Check if the motor/pump is blocked.
Repair or replace the pump.
Repair or replace the PM unit.
Adjust the installation, or select a PM
unit with a higher start pressure.
Repair or replace the PM unit.
Check and repair the pipework.
Clean or replace the non-return valve.
Open the valve.
Replace the pump.
Select a PM unit with a lower start
pressure.
Repair or replace the PM unit.
Clean or replace the non-return valve.
Check the pipework.
Check the plug and cable connections,
and check if the built-in circuit breaker
of the pump is switched off.
Check if the motor/pump is blocked.
Repair or replace the pump.
Repair or replace the PM unit.
Fault Finding
le connections,
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Fault Finding
Fault Cause Remedy
8. The pump
performance is
unstable.
9. The pump runs
backwards when
switched off.
Self-priming pumps only:
10. The pump
performance is
unstable and the
pump is noisy.
11. When startup is
attempted, the
pump will start, but
delivers no
pressure or flow.
12. The pump runs, but
does not deliver
the rated flow.
13. The pump
performance is
unstable.
14. The pump runs
backwards when
switched off.
Self-priming pumps only:
15. The pump
performance is
unstable and the
pump is noisy.
16. When startup is
attempted, the
pump will start,
delivers no
pressure or flow.
but
a) Pump inlet pressure too low.
b) Suction pipe is partly blocked by
impurities.
c) Leakage in suction pipe.
d) Air in suction pipe or pump.
a) Leakage in suction pipe.
b) Foot or non-return valve defective.
c) The foot valve is stuck in completely
or partly open position.
a) The differential pressure across the
pump is too low.
a) Liquid column above non-return
valve in discharge pipe prevents the
pump from self-priming.
b) Suction pipe draws in air.
a) The internal valve did not close.
a) Pump inlet pressure too low.
b) Suction pipe is partly blocked by
impurities.
c) Leakage in suction pipe.
d) Air in suction pipe or pump.
a) Leakage in suction pipe.
b) Foot or non-return valve defective.
c) The foot valve is stuck in completely
or partly open position.
a) The differential pressure across the
pump is too low.
a) Liquid column above non-return
valve in discharge pipe prevents the
pump from self-priming.
b) Suction pipe draws in air.
Check the inlet conditions of the pump.
Remove and clean the suction pipe.
Remove and repair the suction pipe.
Vent the suction pipe/pump.
Check the inlet conditions of the pump.
Remove and repair the suction pipe.
Remove and clean, repair or replace
the valve.
Remove and clean, repair or replace
the valve.
Close the tap gradually until the
discharge pressure is stable and th
noise has ceased.
Empty the discharge pipe. Make sure
that the non-return valve does not hold
back liquid in the discharge pipe.
Repeat the startup procedure.
Make sure that the suction pipe is
airtight from pump to liquid level.
Repeat the startup procedure.
Close the tap gradually until the
pressure or flow suddenly increases.
Then open the tap gradually until the
required flow is reached.
Check the inlet conditions of the pump.
Remove and clean the suction pipe.
Remove and repair the suction pipe.
Vent the suction pipe/pump.
Check the inlet conditions of the pump.
Remove and repair the suction pipe.
Remove and clean, repair or replace
the valve.
Remove and clean, repair or replace
the valve.
Close the tap gradually until the
discharge pressure is stable and the
noise has ceased.
Empty the discharge pipe. Make sure
that the non-return valve does not hold
back liquid in the discharge pipe.
Repeat the startup procedure.
Make sure that the suction pipe is
airtight from pump to liquid level.
Repeat the startup procedure.
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Fault Cause Remedy
17. The pump runs, but
does not deliver
the rated flow.
a) The internal valve did not close.
pressure or flow suddenly increases.
Then open the tap gradually until the
required flow is reached.
8. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or privat e waste co llection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
Subject to alterations.
Fault Finding
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CMSP-PM1 Pictorial Diagram
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CMSP-PM1 Pictorial Diagram
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CMSP-PM1 Pictorial Diagram
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CMSP-PM1 Pictorial Diagram
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CMSP-PM1 Pictorial Diagram
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CMSP-PM1 Pictorial Diagram
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Cert No.: KLR 0402930
Website : www.grundfos.com
Toll Free No. : 1800 88 PUMP (7867)
CMSP-PM1-0315
Subject to alterations.
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