Grundfos PM 1 User manual

PM 1
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

2

3
Table of contents
PM 1
English (GB)
Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Čeština (CZ)
Montážní a provozní návod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Deutsch (DE)
Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Dansk (DK)
Monterings- og driftsinstruktion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Español (ES)
Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . 38
Suomi (FI)
Asennus- ja käyttöohjeet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Français (FR)
Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Ελληνικά (GR)
Οδηγίες εγκατάστασης και λειτουργίας . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Magyar (HU)
Telepítési és üzemeltetési utasítás. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Italiano (IT)
Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Nederlands (NL)
Installatie- en bedieningsinstructies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Polski (PL)
Instrukcja montażu i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Português (PT)
Instruções de instalação e funcionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Română(RO)
Instrucţiuni de instalare şi utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Русский (RU)
Руководство по монтажу иэксплуатации . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Svenska (SE)
Monterings- och driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Slovenčina (SK)
Návod na montáž a prevádzku . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Türkçe (TR)
Montaj ve kullanım kılavuzu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Table of contents
4
PM 1
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

English (GB)
5
English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
Page
1. Symbols used in this document
2. Applications
The Grundfos PM 1 is designed for automatic start/
stop control of Grundfos pumps and other pumps for
water supply.
Typical applications are water supply systems and
rainwater systems in
• single-family houses
• blocks of flats
• summer houses and holiday cottages
• horticulture and gardening
• agriculture.
2.1 Liquids
Clean, thin, non-aggressive and non-explosive
liquids without solid particles or fibres that may
attack the unit mechanically or chemically.
Examples:
• drinking water
• rainwater.
2.2 Liquid temperature
0 °C - see nameplate.
2.3 Operating pressure
Max. 10 bar.
3. Installation
Install the unit on the discharge side of the pump.
See fig. 2.
If pumping from a well, borehole or similar, always fit
a non-return valve on the suction pipe of the pump.
It is recommended to connect the unit to the piping
system using unions.
The outlet connection of the unit can be rotated
360 °. See fig. 1.
The inlet connection is an integrated part of the unit
housing.
The unit has a built-in non-return valve.
Fig. 1 Rotary outlet connection
1. Symbols used in this document 5
2. Applications 5
2.1 Liquids 5
2.2 Liquid temperature 5
2.3 Operating pressure 5
3. Installation 5
3.1 Location 6
4. Electrical connection 7
4.1 Connecting units with cable and plug fitted 7
4.2 Connecting units with no cable and plug
fitted 7
4.3 Alternative power supply 7
5. Control panel 7
6. Start-up 8
7. Operation 8
7.1 Normal operation 8
7.2 Power supply failure 8
8. Functions 9
8.1 Anti-cycling 9
8.2 Dry-running protection 9
9. Frost protection 9
10. List of alarms 10
11. Technical data 10
12. Fault finding chart 11
13. Further product information 12
14. Disposal 12
Warning
Prior to installation, read these installation
and operating instructions. Installation and
operation must comply with local
regulations and accepted codes of good
practice.
Warning
If these safety instructions are not
observed, it may result in personal injury!
Caution
If these safety instructions are not
observed, it may result in malfunction or
damage to the equipment!
Note
Notes or instructions that make the job
easier and ensure safe operation.
TM03 9706 1708

English (GB)
6
3.1 Location
The installation location must be clean and well
ventilated.
The PM 1 must be positioned so that it is protected
from rain and direct sunlight.
Fig. 2 Installation example
The unit can be fitted directly to the pump discharge
port or between the pump and the first tapping point.
Pos. A in fig. 2:
It is recommended to install the unit so that the
height between the unit and the highest tapping point
does not exceed:
1.5 bar variant: 10 metres
2.2 bar variant: 17 metres.
Pos. B in fig. 2:
To achieve correct operation, the pump should at
least be able to provide the following head:
1.5 bar variant: 24 metres
2.2 bar variant: 31 metres.
Pos. C in fig. 2:
The unit should be installed so that the control panel
is visible and easily accessible. Ensure that the inlet
and outlet are connected correctly.
Fig. 3 Mounting positions
Pos. D in fig 2:
No taps must be installed between the pump and the
unit.
TM03 9364 4007
A
C
D
B
Caution
To prevent water from entering the unit, do
not install the unit so that the cable
connections are pointing upwards. See fig.
3.
TM04 0335 1708

English (GB)
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4. Electrical connection
4.1 Connecting units with cable and plug
fitted
Connect the unit using the supplied cable.
4.2 Connecting units with no cable and
plug fitted
1. Remove the control panel of the unit.
2. Carry out the electrical connection as shown in
fig. 1or 2, page 151, depending on motor type.
3. Fit the control panel securely with all four
mounting screws so that enclosure class IP65 is
maintained.
4.3 Alternative power supply
The PM 1 can be powered by a generator or other
alternative power supplies, provided that the
requirements for the power supply are fulfilled.
See section 11. Technical data.
5. Control panel
Fig. 4 Control panel
Warning
The electrical connection must be carried
out in accordance with local regulations
and standards.
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.
It is recommended to fit the permanent
installation with an earth leakage circuit
breaker (ELCB) with a tripping current
< 30 mA.
TM03 9360 1708
Pos. Description Function
1"Poweron"
The green indicator light is
permanently on when the
power supply has been
switched on.
2 "Pump on"
The green indicator light is
permanently on when the
pump is running.
3"Alarm"
The red indicator light is
permanently on or flashes
when the pump has
stopped due to an operating
fault.
See section 12. Fault
finding chart.
4[Reset]
The button is used for
• resetting fault indications
• enabling and disabling of
the anti-cycling function.
See section 8.1 Anti-
cycling.

English (GB)
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6. Start-up
1. Open a tap in the system.
2. Switch on the power supply.
3. Check that the "Power on", "Pump on" and
"Alarm" indicator lights illuminate briefly.
– The pump is running, and a pressure will be
built up in the system.
4. Close the tap.
5. Check that the pump stops after a few seconds
and that the "Pump on" indicator light goes out.
The system is now ready for operation.
7. Operation
7.1 Normal operation
When water is consumed in the water supply system,
the PM 1 starts the pump when the starting
conditions of the unit are fulfilled. This happens for
example when a tap is opened which makes the
pressure in the system drop. The unit stops the
pump again when consumption stops, i.e. when the
tap is closed.
7.1.1 Starting and stopping conditions
Starting conditions
The unit starts the pump when at least one of the
following conditions is fulfilled:
• The flow is higher than Qmin..
• The pressure is lower than pstart.
Stopping conditions
The unit stops the pump with a time delay of
10 seconds when the following conditions are both
fulfilled:
• The flow is lower than Qmin..
• The pressure is higher than pstop.
The pstart, pstop and Qmin. values are shown in
section 11. Technical data.
7.2 Power supply failure
In case of a power supply failure, the pump restarts
automatically when power returns and runs for at
least 10 seconds.
The setting of the anti-cycling function will not be
affected by a power supply failure.
Note
If a pressure is not built up in the system
within 5 minutes after start-up, the dry-
running protection will be activated, and
the pump is stopped. Check the priming
conditions of the pump before attempting
to restart the pump.
Restart the pump by pressing [Reset].
Note
If the pump restarts immediately after
it has been stopped, the isolating valve
used for checking for correct operation is
positioned too close to the PM unit.
A possible isolating valve installed
immediately after the PM outlet must not
be used for checking for correct operation.
The problem will be that the pipe length
between the PM unit and the isolating
valve is too short, and therefore the
expansion of the pipe is too small. The
result is that the pressure will drop rapidly
when the pump stops.

English (GB)
9
8. Functions
8.1 Anti-cycling
If there is a minor leakage in the system, or a tap has
not been closed entirely, the unit will start and stop
the pump periodically. In order to avoid cycling, the
anti-cycling function of the unit will stop the pump
and indicate an alarm.
Default setting: The function is enabled.
Enabling and disabling the function
1. Keep [Reset] pressed for 3 seconds until "Power
on" starts flashing.
2. Select whether the function should be enabled or
disabled. Each press on [Reset] will change
between enabled and disabled.
"Pump on" is off when the function is disabled.
"Pump on" is on when the function is enabled.
3. Keep [Reset] pressed for 3 seconds to return to
operation.
Resetting a cycling alarm
If a cycling alarm has been activated, the pump can
be restarted by pressing [Reset].
8.2 Dry-running protection
The unit incorporates dry-running protection that
automatically stops the pump in case of dry running.
The dry-running protection functions differently
during priming and operation.
8.2.1 Dry running during priming
If the unit detects no pressure and no flow within
5 minutes after it has been connected to a power
supply and the pump has started, the dry-running
alarm is activated.
8.2.2 Dry running during operation
If the unit detects no pressure and no flow within
40 seconds during normal operation, the dry-running
alarm is activated.
8.2.3 Resetting of dry-running alarm
If a dry-running alarm has been activated, the pump
can be restarted manually by pressing [Reset]. If the
unit detects no pressure and no flow within
40 seconds after restarting, the dry-running alarm is
re-activated.
9. Frost protection
If the unit is subjected to frost in periods of inactivity,
the unit and the piping system should be drained
before the unit is taken out of operation.
Fig. 5 Mounting positions making draining
easier
Note
In case of a very small consumption, the
anti-cycling function may detect this as
cycling and stop the pump inadvertently. If
this occurs, the function can be disabled.
Caution
If a dry-running alarm has been activated,
the cause should be found before the
pump is restarted in order to prevent
damage to the pump.
Note
The unit has no draining options, but
mounting the unit in one of the positions
shown in fig. 5makes draining easier.
TM04 5458 3209

English (GB)
10
10. List of alarms
11. Technical data
*) The start pressure (pstart) depends on the variant. See the nameplate.
The technical data may be limited by the pump data. See installation and operating instructions for the pump.
Indication Alarm Cause
"Alarm" is permanently on. Dry running. The pump has been running without water.
"Alarm" is flashing. Cycling.
The pump is cycling.
Note: Occurs only if the anti-cycling function is
enabled. See section 8.1 Anti-cycling.
Data 230 V model 115 V model
Supply voltage 1 x 220-240 VAC 1 x 110-120 VAC
Maximum inductive contact load 10 A 14 A
Frequency 50/60 Hz
Maximum ambient temperature See nameplate.
Liquid temperature 0 °C - see nameplate.
pstart*) PM 1 - 15 1.5 bar
PM 1 - 22 2.2 bar
Qmin. 1.0 litre/min.
Time delay during stopping 10 seconds
Maximum operating pressure PN 10 / 10 bar / 1 MPa
Enclosure class IP65
Dimensions See fig. 3, page 151