Grundfos CRNE HS Series User manual

CRNE-HS
GRUNDFOS INSTRUCTIONS
Installation and operating instructions

2
Start-up
1
TM03 0489 5204
2
TM03 0490 5204
3
TM03 0491 5204
4
TM03 0492 5204
5
TM03 0493 5204
6
TM03 0494 5204
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TM03 0495 5204
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TM03 0496 5204
OFF ON ONOFF
12
OFF ON

3
Start-up
1
Close the isolating valve on the discharge side of the pump and
open the isolating valve on the suction side.
2
Remove the priming plug from the pump head and slowly fill the
pump with liquid. Replace the priming plug and tighten securely.
3
Remove a coupling guard.
4
Start the pump for a short period and check the direction of rota-
tion.
The correct direction of rotation is clockwise when seen from the
non-drive end.
Stop the pump.
Note: The direction of rotation has been factory-set and cannot be
changed.
5
Replace the coupling guard.
6
Start and vent the pump by means of the vent valve in the pump
head.
At the same time, open the discharge isolating valve a little.
7
Continue to vent the pump. At the same time, open the discharge
isolating valve a little more.
8
Close the vent valve when a steady stream of liquid runs out of it.
Completely open the discharge isolating valve.
For further information, see section 8. Start-up on page 8.
Inbetriebnahme
1
Das druckseitige Absperrventil schließen und das saugseitige Ab-
sperrventil öffnen.
2
Einfüllstopfen entfernen und Pumpe langsam auffüllen.
Einfüllstopfen wieder einschrauben und fest anziehen.
3
Kupplungsschutzschirm entfernen.
4
Pumpe kurz einschalten und Drehrichtung der Pumpe prüfen.
Vom Lüfter gesehen muss die Pumpe im Uhrzeigersinn laufen.
Pumpe ausschalten.
Hinweis: Die Drehrichtung ist werkseitig eingestellt und lässt sich
nicht ändern.
5
Kupplungsschutzschirm wieder montieren.
6
Pumpe einschalten und über das Entlüftungsventil im Kopfstück
entlüften. Gleichzeitig das druckseitige Absperrventil ein wenig
öffnen.
7
Die Entlüftungsvorgehensweise fortsetzen. Gleichzeitig das
druckseitige Absperrventil ein bisschen mehr öffnen.
8
Entlüftungsventil schließen, wenn das Medium aus dem Ventil
herausläuft. Das druckseitige Absperrventil ganz öffnen.
Für weitere Informationen, siehe Abschnitt 8. Inbetriebnahme auf Seite 12.
Idriftsætning
1
Luk afspærringsventilen på pumpens afgangsside og åbn afspær-
ringsventilen på pumpens tilgangsside.
2
Afmontér spædeproppen i topstykket og spæd pumpen langsomt.
Montér derefter spædeproppen igen.
3
Fjern en koblingsbeskyttelsesskærm.
4
Start pumpen kortvarigt og kontrollér pumpens omdrejningsret-
ning.
Set fra ventilatorsiden er korrekt omdrejningsretning med uret.
Stop pumpen.
Bemærk: Omdrejningsretningen er indstillet fra fabrikken og kan
ikke ændres.
5
Montér koblingsbeskyttelsesskærmen.
6
Start og udluft pumpen ved hjælp af udluftningsventilen, som er
placeret i topstykket.
Åbn samtidig afspærringsventilen på pumpens afgangsside lidt.
7
Fortsæt med at udlufte pumpen. Åbn samtidig afspærringsven-
tilen på pumpens afgangsside lidt mere.
8
Luk udluftningsventilen, når der løber en jævn væskestrøm ud af
den.
Åbn afspærringsventilen på pumpens afgangsside helt.
For yderligere information, se afsnit 8. Idriftsætning på side 16.

4
Запуск
1
Перекройте запорный клапан со стороны выпуска насоса и
откройте запорный клапан со стороны всасывания.
2
Выньте пробку из заливочной горловины имедленно
заполните насос жидкостью. Установите пробку заливочной
горловины на свое место ипрочно затяните.
3
Снимите соединительную защитную пластинку.
4
Запустите насос идайте ему поработать втечение короткого
периода времени. Проверьте направление вращения.
Правильным направлением вращения является направление
по часовой стрелке, если смотреть со стороны конца, который
не соединен сприводом.
Остановите насос.
Примечание:Направление вращение устанавливается
изготовителем при сборке ине может быть изменено.
5
Установите соединительную защитную пластинку на свое
место.
6
Запустите ипродуйте насос при помощи выпускного клапана,
который находится на уровне напора насоса.
Одновременно слегка приоткройте запорный клапан со
стороны выпуска.
7
Продолжайте вентиляцию насоса. Одновременно слегка
продолжайте приоткрывать запорный клапан со стороны
выпуска.
8
Закройте выпускной клапан, когда из насоса начнет вытекать
жидкость ровным потоком.
Полностью откройте запорный клапан со стороны выпуска.
Что касается дальнейшей информации, обратитесь кразделу 8. Ввод вэксплуатацию, который находится на странице 20.

5
CRNE-HS
Installation and operating instructions 6
Montage- und Betriebsanleitung 10
Monterings- og driftsinstruktion 14
Руководство по монтажу иэксплуатации 18

6
Original installation and operating instructions.
CONTENTS
1. Symbols used in this document - 6
2. General information - 6
3. Type designation - 6
4. Applications - 6
5. Operating conditions - 6
5.1 Temperature ranges - 6
5.2 Inlet pressure - 7
5.3 Minimum flow rate - 7
5.4 Shaft seal - 7
5.5 Start/stop of pump - 7
6. Installation - 7
6.1 Motor cooling - 7
7. Electrical connection - 8
8. Start-up - 8
9. Functions - 8
10. Setting the pump - 8
11. Maintenance - 8
12. Megging - 8
13. Coupling adjustment - 8
14. Technical data - 9
14.1 Supply voltage - 9
14.2 Leakage current - 9
14.3 Enclosure class - 9
14.4 Insulation class - 9
14.5 Dimensions and weights - 9
14.6 Maximum speed and sound pressure level - 9
15. Disposal - 9
1. Symbols used in this document
2. General information
This document is a supplement to these installation and operating
instructions:
• CR, CRI, CRN (96462123)
• CRE, CRIE, CRNE, SPKE, MTRE, CHIE, CME (96780071).
3. Type designation
4. Applications
The Grundfos CRNE-HS pump is designed to handle pressures
up to 48 bar. The pump is fitted with a frequency-controlled motor
with a speed of up to 5440 min-1 depending on motor size.
See section 14.6 Maximum speed and sound pressure level.
The pump is typically used as a pressure booster pump in
systems with variable demands.
On delivery, the pump is ready for installation and start-up.
The pump will start up at 100 % performance.
5. Operating conditions
5.1 Temperature ranges
Ambient temperature
-20 °C to +40 °C.
Liquid temperature
-20 °C to +120 °C (HQQV shaft seal: -20 °C to +90 °C).
Temperature during storage/transport
-40 °C to +60 °C.
Relative air humidity
Maximum 95 %.
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
Warning
If these instructions are not observed, it may lead
to electric shock with consequent risk of serious
personal injury or death.
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.
Example CRNE1- 23 - HS - P- GI- E - HUUE
Type range
Rated flow rate in m3/h
n = 3000 min-1
Number of impellers
Code for pump version
Code for pipework connection
Code for materials
Code for rubber parts
Code for shaft seal
Caution
The liquid temperature applies to the pump only.

7
5.2 Inlet pressure
Minimum inlet pressure
Fig. 1 Schematic view of open system with a CRNE-HS
pump
The maximum suction lift "H" in metres head can be calculated as
follows:
H = pbx 10.2 – NPSH – Hf– Hv– Hs
pb= Barometric pressure in bar.
(Barometric pressure can be set to 1 bar.)
In closed systems, pbindicates the system pressure in
bar.
NPSH = Net Positive Suction Head in metres head (to be read
from the NPSH curve on page 23 at the highest flow the
pump will be delivering).
Hf= Friction loss in suction pipe in metres head at the
highest flow the pump will be delivering.
Hv= Vapour pressure in metres head, see Fig. B on page 23.
tm= Liquid temperature.
Hs= Safety margin = minimum 0.5 metres head.
If the calculated "H" is positive, the pump can operate at a suction
lift of maximum "H" metres head.
If the calculated "H" is negative, an inlet pressure of minimum "H"
metres head is required. There must be a pressure equal to the
calculated "H" during operation.
Example
pb= 1 bar.
Pump type: CRNE 1 HS.
Flow rate: 2 m3/h.
NPSH (from page 23): 2.0 metres head.
Hf= 3.0 metres head.
Liquid temperature: +60 °C.
Hv(from Fig. B, page 23): 2.1 metres head.
H = pbx 10.2 – NPSH – Hf– Hv– Hs[metres head].
H = 1 x 10.2 – 2.0 – 3.0 – 2.1 – 0.5 = 2.6 metres head.
This means that the pump can operate at a suction lift of
maximum 2.6 metres head.
Pressure calculated in bar: 2.6 x 0.0981 = 0.255 bar.
Pressure calculated in kPa: 2.6 x 9.81 = 25.5 kPa.
Maximum inlet pressure
• 10 bar (static pressure).
• 25 bar (pressure during operation).
Maximum operating pressure
50 bar.
5.2.1 Pressure test
The pump may be tested at a static pressure of 55 bar.
To lock the pump shaft, proceed as follows:
1. Remove the motor.
2. Lift the chamber stack as far as possible and fit a bracket
(fig. 2) to the pump shaft and the pump head.
The bracket must be ordered separately (product number
96465853).
Fig. 2 Bracket for locking the pump shaft
5.3 Minimum flow rate
5.4 Shaft seal
The shaft seal is fitted on the suction side of the pump. As the
shaft seal is not affected by the discharge pressure, the choice of
shaft seal is only determined by the inlet pressure as well as the
chemical properties and temperature of the liquid to be pumped.
5.5 Start/stop of pump
The number of starts and stops via the mains supply must not
exceed 4 times per hour. When switched on via the mains supply,
the pump will start within 5 seconds.
If a higher number of starts and stops is desired, the input for
external start/stop must be used when starting/stopping the
pump.
When started/stopped via an external on/off switch, the pump will
start immediately.
The maximum number of starts and stops is 200 times per hour.
6. Installation
See the installation and operating instructions for the CR, CRI,
CRN pumps.
In order to maintain the UL/cUL approval, additional installation
procedures must be followed. See page 22.
6.1 Motor cooling
To ensure cooling of motor and electronics, the following must be
observed:
• Place the pump in such a way that sufficient cooling is
ensured.
• Keep the temperature of the cooling air below 40 °C.
• Keep motor cooling fins and fan blades clean.
TM02 0118 3800
Caution
The actual inlet pressure + the maximum pump
pressure (at no flow) must not exceed 50 bar.
Caution
The pump must not run against a closed
discharge valve.
Hv
HNPSH
Pb
Hf
Note
During the test, the pump shaft must be locked to
prevent axial movement.
TM03 0504 0105
Pump type Liquid temperature
Up to +80 °C +80 to +90 °C
CRNE 1 HS 0.5 m3/h 1.0 m3/h
CRNE 3 HS 0.5 m3/h 1.0 m3/h
Caution
Do not use rapid-closing valves, e.g. rapid-
closing spray guns, as these may cause water
hammering.

8
7. Electrical connection
See the installation and operating instructions for the CRE, CRIE,
CRNE, SPKE, MTRE, CHIE and CME pumps.
8. Start-up
Follow the instructions on page 2.
It is advisable to open the bypass valve during start-up.
The bypass valve connects the suction and discharge sides of the
pump, thus making the filling procedure easier. When the
operation is stable, the bypass valve can be closed. When
pumping liquids containing air, it is advisable to leave the bypass
valve open.
Fig. 3 Filling by means of bypass valve
9. Functions
The CRNE-HS pump offers the following functions:
•Controlled operation
If the pump is connected to an external sensor, the following
parameters can be controlled:
– pressure
– differential pressure
– temperature
– differential temperature
– flow rate.
•Uncontrolled operation
The pump performance can be set according to the demand.
•Setting of the pump
The desired setpoint can be set directly on the pump control
panel, via an input for external setpoint signal, via a bus or by
means of the Grundfos wireless remote control R100.
All other settings are made by means of the R100.
Important parameters such as actual value of control
parameter, power consumption, etc. can be read via the R100.
•Inputs
The pump incorporates inputs for external potential-free
contacts for start/stop and digital function. The digital function
enables external setting of max. curve, min. curve, external
fault function or flow switch.
•Output
The pump incorporates an output for a potential-free fault,
operating or ready signal.
•Bus communication
The pump incorporates an input for bus communication.
Via the bus communication input, the pump can be controlled
and monitored by a building management system or another
external control system.
10. Setting the pump
See the installation and operating manual for the CRE, CRIE,
CRNE, SPKE, MTRE, CHIE and CME pumps.
11. Maintenance
The pump bearings, the shaft seal and the motor bearings are
maintenance-free.
If the pump is to be drained for a long period of inactivity, remove
one of the coupling guards to inject a few drops of silicone oil on
the shaft between the pump head and the coupling. This will
prevent the shaft seal faces from sticking.
12. Megging
13. Coupling adjustment
For adjustment of coupling of CRNE 1 and 3, see Fig. D on
page 25.
Warning
The user or the installer is responsible for the
installation of correct earthing and protection
according to national and local standards.
All operations must be carried out by qualified
personnel.
Warning
Before making any connections in the pump
terminal box, make sure that the power supply
has been switched off for at least 5 minutes and
that it cannot be accidentally switched on.
Note for instance that the signal relay may be
connected to an external supply which is still
connected when the mains supply is
disconnected.
Caution
Do not start the pump until it has been filled with
liquid and vented. If the pump runs dry, the pump
bearings and the shaft seal may be damaged.
Warning
Pay attention to the direction of the vent hole and
take care to ensure that the escaping water does
not cause injury to persons or damage to the
motor or other components.
In hot-water installations, pay special attention to
the risk of injury caused by scalding hot water.
Note
The direction of flow in CRNE-HS pumps is the
opposite of the one in the standard pump.
TM03 0502 0105
Discharge side
Suction side Drain plug
Bypass valve
Note
In constant-pressure mode, a pressure
transmitter, if used, must be fitted after the pump
– not in the pump head. This is due to the special
construction of the pump.
Warning
Before starting work on the pump, make sure that
the power supply has been switched off for at
least 5 minutes and that it cannot be accidentally
switched on.
Caution
Megging of an installation incorporating
CRNE-HS pumps is not allowed, as the built-in
electronics may be damaged.

9
14. Technical data
14.1 Supply voltage
3 x 380-480 V - 10 %/+ 10 %, 50/60 Hz, PE.
Cable: 6-10 mm2/10-8 AWG.
See nameplate.
Recommended fuse sizes
Motor sizes from 4.6 to 6.0 kW: Max. 16 A.
Motor size 7.5 kW: Max. 32 A.
Standard as well as quick-blow or slow-blow fuses may be used.
14.2 Leakage current
The leakage currents are measured in accordance with
EN 60355-1.
14.3 Enclosure class
Standard: IP55 (IEC 34-5).
14.4 Insulation class
F (IEC 85).
14.5 Dimensions and weights
Dimensions: See Fig. C and page 24.
Weights: See label on the packing.
14.6 Maximum speed and sound pressure level
The sound pressure level is calculated according to ISO 9871
and ISO/DIS 11203, method Q2.
15. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company
or service workshop.
Motor size
[kW] Leakage current [mA]
4.6 and 6.0 < 5
7.5 < 10
Motor size CRNE-HS 1-23 CRNE-HS 3-23
[kW] Speed
[min-1]
Sound
pressure
[dBA]
Speed
[min-1]
Sound
pressure
[dBA]
4.6 4800 72 4050 67
6.0 5180 74 4450 70
7.5 5440 75 4750 71
Subject to alterations.

22
1. Installation in the USA and Canada
In order to maintain the UL/cUL approval, these additional instal-
lation procedures must be followed. The UL approval is according
to UL508C.
1.1 Electrical installation
1.1.1 Conductors
Use 140/167 °F (60/75 °C) copper conductors only.
1.1.2 Torques
Power terminal, M4: 2.35 Nm.
Relay, M2.5: 0.5 Nm.
Input control, M2: 0.2 Nm.
1.1.3 Line reactors
Max. line reactor size, 2 unit %.
1.1.4 Fuse size/circuit breaker
The pump is “suitable for use on a circuit capable of delivering not
more than 5000 A RMS symmetrical amperes, 480 V maximum”
• when protected by fuses rated (see tables below) and 480 V,
and/or
• “when protected by a circuit breaker having an interrupting rat-
ing not less than (see table below) RMS symmetrical amperes,
480 V maximum”.
USA - hp
Europe - kW
1.1.5 Overload protection
Degree of overload protection provided internally by the drive, in
percent of full-load current: 102 %.
1.2 Before starting the pump
• The pump must always be connected to the power supply at
least one hour prior to start.
• From then on the pump must always be connected to the
power supply.
This procedure will help to avoid condensation in the terminal
box.
2-pole Fuse size Circuit breaker type/model
6.2 40 A 40 A / Inverse time
8.0 40 A 40 A / Inverse time
10 50 A 50 A / Inverse time
2-pole Fuse size Circuit breaker type/model
4.6 40 A 40 A / Inverse time
6.0 40 A 40 A / Inverse time
7.5 50 A 50 A / Inverse time
Subject to alterations.