Grundfos Hydro Multi-B Series Bedienungsanleitung

GRUNDFOS INSTRUCTIONS

Hydro Multi-B

Installation and operating instructions

English (US)

English (US) Installation and operating instructions

Original installation and operating instructions.

CONTENTS

Page

1. Symbols used in this document

1. Symbols used in this document 2

2. Limited warranty 3

3. Product introduction 3

3.1 Introduction 3

3.2 Delivery and handling 4

3.3 Applications 4

3.4 Features and benefits 5

4. Delivery and handling 5

4.1 Delivery 5

4.2 Handling 5

5. Identification 6

5.1 Nameplate 6

5.2 Type key 6

6. Installation 7

6.1 Mechanical installation 7

6.2 Electrical installation 8

7. Operation 9

7.1 User interface 9

8. Startup 11

8.1 Positive inlet pressure startup procedure 11

8.2 Flooded suction and suction lift startup procedures 11

9. Operating modes 12

9.1 Local mode, external stop not activated 12

9.2 Local mode, external stop activated 12

9.3 Remote-controlled, external stop not activated 13

9.4 Remote-controlled, external stop activated 13

10. Functions 14

10.1 General functions 14

10.2 Functions for constant-pressure systems 14

11. Data communication 15

12. Maintenance and service 15

12.1 Maintenance 15

12.2 Frost protection 15

12.3 Service 16

12.4 Overview of inputs and outputs 16

13. Fault finding 18

14. Maintenance 19

14.1 Pumps 19

14.2 CU 323 19

15. Frost protection 19

16. Taking out of operation 19

17. Technical data 19

17.1 Pressure 19

17.2 Temperature 19

17.3 Relative humidity 19

17.4 Sound pressure level 20

18. Electrical data 20

18.1 Disposal 20

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

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 been

instructed in the use of the product by a person

responsible for their safety.

Children must not use or play with this product.

Warning

If these safety instructions are not observed,

it may result in personal injury.

Warning

The surface of the product may be so hot that

it may cause burns or 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.

English (US)

2. Limited warranty

Products manufactured by GRUNDFOS PUMPS CORPORATION

(Grundfos) are warranted to the original user only to be free of

defects in material and workmanship for a period of 24 months

from date of installation, but not more than 30 months from date

of manufacture. Grundfos' liability under this warranty shall be

limited to repairing or replacing at Grundfos' option, without

charge, F.O.B. Grundfos' factory or authorized service station,

any product of Grundfos' manufacture. Grundfos will not be liable

for any costs of removal, installation, transportation, or any other

charges which may arise in connection with a warranty claim.

Products which are sold but not manufactured by Grundfos are

subject to the warranty provided by the manufacturer of said

products and not by Grundfos' warranty. Grundfos will not be

liable for damage or wear to products caused by abnormal

operating conditions, accident, abuse, misuse, unauthorized

alteration or repair, or if the product was not installed in

accordance with Grundfos' printed installation and operating

instructions.

To obtain service under this warranty, the defective product must

be returned to the distributor or dealer of Grundfos' products from

which it was purchased together with proof of purchase and

installation date, failure date, and supporting installation data.

Unless otherwise provided, the distributor or dealer will contact

Grundfos or an authorized service station for instructions. Any

defective product to be returned to Grundfos or a service station

must be sent freight prepaid; documentation supporting the

warranty claim and/or a Return Material Authorization must be

included if so instructed.

GRUNDFOS WILL NOT BE LIABLE FOR ANY INCIDENTAL OR

CONSEQUENTIAL DAMAGES, LOSSES, OR EXPENSES

ARISING FROM INSTALLATION, USE, OR ANY OTHER

CAUSES. THERE ARE NO EXPRESS OR IMPLIED

WARRANTIES, INCLUDING MERCHANTABILITY OR FITNESS

FOR A PARTICULAR PURPOSE, WHICH EXTEND BEYOND

THOSE WARRANTIES DESCRIBED OR REFERRED TO

ABOVE.

Some jurisdictions do not allow the exclusion or limitation of

incidental or consequential damages and some jurisdictions do

not allow limit actions on how long implied warranties may last.

Therefore, the above limitations or exclusions may not apply to

you. This warranty gives you specific legal rights and you may

also have other rights which vary from jurisdiction to jurisdiction.

3. Product introduction

3.1 Introduction

As standard, Hydro Multi-B booster systems consist of two to

three CM(E) pumps coupled in parallel and mounted on a

common base frame with all the necessary fittings and a control

cabinet.

Fig. 1 Front view of Hydro Multi-B booster system

Fig. 2 Back view of Hydro Multi-B booster system

TM05 8632 2513TM05 8633 2513

Pos. Description Quantity

1 Control cabinet 1

2 Suction manifold (316 SS) 1

3 Discharge manifold (316 SS) 1

4 Isolating valve (Nickel Plated Brass) 2 per pump

5 Non-return valve (Polyacetal (POM)) 1 per pump

6 Pump (CME A-version CI/304 SS) 2-3

7 Base frame (304 SS) 1

8 Pressure transmitter and pressure gauge 1

9 Inlet pressure switch and pressure gauge 1

10 Oval flange connection (CME 3 - CME 10) 2 per pump

Intermediate adapter connection (CME 15) 1 per pump

11 Screw cap or blanking flange 2

12 Optional diaphragm tank

(available as an accessory) n/a

English (US)

3.2 Delivery and handling

3.2.1 Delivery

The Hydro Multi-B booster system is delivered in packaging

specially designed for transport by fork-lift truck or a similar

vehicle.

The forks of the fork-lift truck must be at least 6 ft (2 m) long.

3.2.2 Handling

The Hydro Multi-B booster system is delivered attached to a

wood pallet. It is recommended to move the system on wood

pallet to installation location. Detach from wood pallet and slide

off wood pallet at final location of installation.

When lifting the booster system, only use suitable lifting

equipment that is in good condition and approved for the weight.

The weight is stated on the nameplate of the booster system.

3.3 Applications

Grundfos Hydro Multi-B booster systems are for constant

pressure boosting applications.

The Hydro Multi-B system is designed to maintain a constant

pressure on the discharge side of the pumps. Hydro Multi-B

systems for constant-pressure applications adjust the

performance according to the demand and keep a constant

pressure in the following ways:

• by cutting the required number of pumps in and out

• through continuous adjustment of the speed of the running

CME pumps.

3.3.1 Operating principle

The user enters the required pressure of the system (setpoint) via

the user interface of the CU 323 control unit. The CU 323 adjusts

the system performance according to the feedback received from

the pressure transmitter installed on the discharge manifold.

3.3.2 Control variants

Hydro Multi-B systems for constant-pressure applications are

available as control variant E. The systems works as described

below.

Warning

When lifting the booster system, never use the

eyebolts of the motors.

Do not lift the booster system by the manifolds.

Do not stand on the manifolds.

Control variant E

Two to three electronically speed-controlled CME pumps.

TM03 0993 0905

One CME pump in operation.

TM00 7995 2296

Three CME pumps in operation.

TM00 7996 2296

• Control variant E for constant-pressure applications

maintains a constant pressure through continuous adjustment

of the speed of the pumps.

• The system performance is adjusted to the demand by cutting

the required number of pumps in and out and through parallel

control of the pumps in operation.

Hset

English (US)

3.4 Features and benefits

The Hydro Multi-B is developed with focus on user-friendliness

and ease of operation.

The pumps are controlled via the CU 323 controller which

features a simple interface that makes it easy to control and

monitor the system.

When the system has been set up, the controller takes care of the

daily operation.

Fig. 3 CU 323 controller

The components and design of the Hydro Multi-B have been

chosen with focus on robustness and compactness. Every

system is thoroughly tested before is leaves the factory.

4. Delivery and handling

4.1 Delivery

The Hydro Multi-B booster system is delivered in a recyclable

packaging, specially designed for transport by fork-lift truck or a

similar vehicle.

The forks of the fork-lift truck must be at least 6 feet long.

4.2 Handling

Hydro Multi-B booster systems must be lifted as shown in fig. 4.

During handling, the lifting point should always be above the

centre of gravity of the booster system.

Fig. 4 Correct lifting of Hydro Multi-B

When lifting the booster system, only use suitable lifting

equipment that is in good condition and approved for the weight.

The weight is stated on the nameplate of the booster system.

TM05 0444 1211

TM05 0221 0911

Warning

When lifting the booster system, never use the

eyebolts of the motors.

Do not lift the booster system by the manifolds.

Do not stand on the manifolds.

English (US)

5. Identification

This section shows the nameplate, the type key and the codes

that can appear in the variant code.

5.1 Nameplate

The nameplate is fitted on the base frame.

Fig. 5 Nameplate

5.2 Type key

Note

As codes can be combined, a code position may

contain more than one code (letter).

TM05 9777 4413

Pos. Description

1 Type designation

2 Model

3 Supply voltage

4 Maximum head [ft]

5 Nominal head [ft]

6 Nominal flow rate [gpm]

7 Weight [lb]

8Motor power [Hp] of pumps with variable frequency

drive

9 Code for pump versions

10 Number of E-pumps

11 E-pump type

12 System serial number

13 Control panel part number

14 Options

15 Country of origin

16 cULus Packaged Pumping Listing (Category QCZJ)

Code Example Hydro Multi-B E 2 CME 10-3 A 3 x 460 V, 60 Hz

Type range

ESystem variants

Two to three pumps with integrated variable frequency drive

ANumber of pumps with integrated variable frequency drive, (CME) pump type and pump material

Cast iron (EN-GJL-200)

Supply voltage, frequency

English (US)

6. Installation

Before installation, check the following:

• Does the booster system correspond to order?

• Are all visible parts intact?

6.1 Mechanical installation

6.1.1 Location

The booster system must be installed in a well ventilated room to

ensure sufficient cooling of the pumps and the control cabinet.

6.1.2 Pipework

Fig. 6 Example showing the position of expansion joints, pipe

supports and mounting bolts

Connect the pipes to the manifolds of the booster system. Either

end can be used. Apply sealing compound to the unused end of

the manifold, and fit the screw cap. For manifolds with flanges,

fit a blanking flange with gasket.

It is advisable to install pipe supports for the suction and

discharge pipes. See fig. 6.

To achieve optimum operation and minimize noise and vibration,

it may be necessary to consider vibration dampening of the

booster system.

Noise and vibration are generated by the rotations in the motor

and pump and by the flow in pipework and fittings. The effect on

the environment is subjective and depends on correct installation

and the state of the other parts of the system.

If booster systems are installed in a building where the first user

on the line is close to the booster system, it is advisable to fit

expansion joints on the suction and discharge pipes to prevent

vibration being transmitted through the pipework. All nuts should

be re-tightened prior to start-up.

The pipes must be fastened to parts of the building to ensure that

they cannot move or be twisted.

6.1.3 Foundation

The booster system should be positioned on an even and solid

surface, for instance a concrete floor or foundation. The booster

system must be bolted to the floor or foundation.

6.1.4 Vibration dampers

To prevent the transmission of vibrations to buildings, it may be

necessary to isolate the booster system foundation from building

parts by means of vibration dampers.

Which is the right damper varies from installation to installation,

and a wrong damper may increase the vibration level. Vibration

dampers should therefore be sized by the supplier of vibration

dampers. If the booster system is installed on a base frame with

vibration dampers, expansion joints should always be fitted on

the manifolds. This is important to prevent the booster system

from "hanging" in the pipework.

Warning

Installation and operation must comply with local

regulations and accepted codes of good practice.

Caution

The booster system is not designed for outdoor

installation and must not be exposed to direct

sunlight.

Note

The booster system must have a 3 ft (1 m)

clearance on all sides for inspection and

dismantling.

Note

The pipework connected to the booster system

must be of adequate size.

TM04 9900 0211

Pos. Description

1 Expansion joint

2 Pipe support (and good location for isolating valve)

3 Mounting bolts

Note

Expansion joints, pipe supports and mounting

bolts shown in fig. 6above are not supplied with

a standard booster system.

Note

As a rule of thumb, the weight of a concrete

foundation should be 1.5 x the weight of the

booster system.

English (US)

6.1.5 Expansion joints

Expansion joints are installed with the following purposes:

• to absorb expansions/contractions in the pipework caused by

changing liquid temperature

• to reduce mechanical strains in connection with pressure

surges in the pipework

• to isolate mechanical structure-borne noise in the pipework

(only rubber bellows expansion joints).

Fit expansion joints at a distance of minimum 1 to 1 - 1/2 times

the nominal flange diameter from the manifold on the suction as

well as on the discharge side. This prevents the development of

turbulence in the expansion joints, resulting in better suction

conditions and a minimum pressure loss on the discharge side.

Fig. 7 Examples of rubber bellows expansion joints without

and with limit rods

Expansion joints with limit rods can be used to minimize the

forces caused by the expansion joints. Expansion joints with limit

rods are always recommended for flanges larger than 6 inch.

The pipework should be anchored so that it does not stress the

expansion joints and the pump. Follow the supplier’s instructions

and pass them on to advisers or pipe installers.

6.2 Electrical installation

• The electrical installation of the booster system must comply

with enclosure class UL Type 3R.

• Make sure that the booster system is suitable for the power

supply to which it is to be connected.

• Make sure that the wire cross-section corresponds to the

specifications in the wiring diagram.

Note

Expansion joints must not be installed to

compensate for inaccuracies in the pipework

such as center displacement of flanges.

TM02 4981 1902 - TM02 4979 1902

Warning

The electrical installation must be carried out by

an authorized person in accordance with local

regulations and the relevant wiring diagram.

English (US)

7. Operation

7.1 User interface

The Hydro Multi-B incorporates a CU 323 control unit which

enables manual setting and monitoring of the booster system.

Figure 8shows the user interface for a system with three pumps.

Fig. 8 User interface of cabinet and CU 323

TM05 9283 4413

Pos. Buttons Description

1 Changes the system operating mode between "Normal" and "Stop".

2 Increases the setpoint value.

3 Decreases the setpoint value.

4 Resets all alarms.

5Changes the operating mode of the individual pumps between "AUTO" and "OFF". Each pump in the

system has an Auto/Off button.

6Enables "Emergency/Manual" operation.

Note: If a pump is set to "Emergency" operation, it will run at 100 % speed, and the power supply to

the CU 323 will be switched off.

7 Switches the power supply to the control cabinet on or off.

Table continued on next page

Off

RESET

English (US)

* The last pump in operation might have been stopped temporarily by the low-flow stop function.

Table continued from previous page

Pos. Displays Description

Setpoint Shows the setpoint.

External stop: Indicates that the system has been stopped externally via a digital input.

Indicates that the system has been set to "OFF".

Indicates that the system has been set from OFF to ON. "On" is only shown for 3 seconds after which

the setpoint will be shown.

Indicates that buttons on the CU 323 have been locked automatically. Unlock the buttons by pressing

(Reset) and or (Reset) and for 2 seconds.

Indicates that the system is remote-controlled.

Local: Appears if attempts to change local settings are made while the system is remote-controlled.

Measured value Shows the actual, measured value on the discharge side.

Appears in case of a primary sensor fault.

/ measured

value Alternates between the actual, measured value on the discharge side and "H.L" when a maximum

discharge pressure or a level limit has been exceeded.

Pos. Indicator

lights Status Description

10 Off Normal state.

Red Water shortage fault.

11 Off Normal state.

Red Primary and/or redundant sensor fault.

Maximum discharge pressure or level limit has been exceeded.

12 (pump LED)

Off The pump has stopped due to cascade operation.

The system is in "OFF" state.

The power supply has been switched off.

Red A pump fault has occurred.

Green The pump is running.

Flashing green The pump is in standby mode or has been stopped by pressing or via remote control.

13 AUTO Yellow The pump is controlled by the CU 323.

14 OFF Yellow The pump has been stopped by pressing or via remote control.

Pos. Indicator

lights

Status

Description

Pos. 13:

system run

(green)

Pos. 14:

alarm

(red)

15 and 16

(system LEDs)

Off Off The power supply has been switched off.

On Off The system is in normal operation.*

Flashing Off The system has been set to stop.

Off On The system has been stopped due to an alarm.

On On The system is in normal operation, but there is a warning.*

Flashing On The system has been set to stop, and there is a warning.

E.St

OFF

0-N

RESET

bUS

LOC

Err

H.L

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