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Instructions

EZ Boost

TM

 

System

14

PRE-INSTALLATION

Before  beginning  installation  procedures, 
these  installation  and  operating  instructions 
should  be  studied  carefully.  The  installation 
and  operation  should  also  be  in  accordance 
with  local  regulations  and  accepted  codes  of 
good practice.

The  sound  pressure  level  of  the  BMQE  is  <74  db[A]  at  a 
distance of 3 feet (1 meter). 

It is recommended by Grundfos 

that  the  pump  be  installed  with  sound  and  vibration 
dampening  equipment  such  as;  flexible  piping  adapters 
and  anti-vibration  mounting.  The  pump  should  not  be 
mounted  in  or  adjacent  to  living  quarters. The  pump  can 
also be wrapped with sound proofing insulation to reduce 
noise.  (See page 16, EZ Boost System Diagram.)

1. A guide to the EZ Boost System

The  EZ  Boost  Constant  Pressure  System  automatically 
balances  water  surges  and  equalizes  flow  and  pressure 
according  to  consumption.  In  other  words,  the  system 
maintains  a  constant  water  pressure  in  spite  of  varying 
water consumption. The pressure is registered by means of 
the pressure sensor and transmitted to the controller. The 
controller adjusts the EZ Boost BMQE pump performance 
accordingly.  The  EZ  Boost  Constant  Pressure  System 
features:

•  Quick and easy installation: ready-to-use system  

 

 

requiring minimum space

•  High user convenience: constant pressure regardless of  
 

water consumption

•  Easily adjustable pressure level: push button control
•  Continuous control and monitoring of pump operation
•  Integrated dry-running protection
•  Integrated overload protection
•  Integrated protection against over voltage and under  
 

voltage

•  Soft start system

1.1 Function

When  a  tap  is  opened,  the  pressure  in  the  tank  will  start 
to drop. The system maintains a constant pressure within 
the maximum pump performance in spite of varying water 
consumption.

The pressure is registered by means of the pressure sensor, 
which  transmits  a  signal  to  the  controller.  The  controller 
adjusts  the  pump  performance  accordingly  to  maintain 
constant pressure by changing the pump speed.

At  low  flow  the  pressure  will  drop  slowly.  When  the 

pressure in the tank is 7 PSI below the setpoint, the pump 
will start. When the pressure is 7 PSI above the setpoint, the 
pump will stop. 

Even  though  the  EZ  Boost  controller  is  controlling  the 
pressure within ±3 PSI, larger pressure variations may occur 
in the system. If the consumption is suddenly changed, e.g. 
if  a  tap  is  opened,  the  water  must  start  flowing  before 
the  pressure  can  be  made  constant  again.  Such  dynamic 
variations  depend  on  the  pipe  work,  but,  typically,  they 
will lie between 7 and 14 PSI. If the desired consumption is 
higher than the quantity the pump is able to deliver at the 
desired  pressure,  the  pressure  follows  the  pump  curve  as 
illustrated in the far right of fig. 1.

     Fig. 1

At  large  flow  rates,  the  pressure  will  drop  quickly  and 
the  pump  will  start  immediately  and  maintain  constant 
pressure.  When  the  system  is  running,  the  EZ  Boost 
controller  makes  small  adjustments  to  the  pressure  to 
detect  whether  there  is  consumption.  If  there  is  none, 
the  pump  will  simply  refill  the  tank  and  stop  after  a  few 
seconds.

1.2  Power line communication

The  communication  between  the  EZ  Boost  controller 
and  the  EZ  Boost  BMQE  pump  is  via  the  power  supply 
cable.  This  communication  principle  is  known  as  power 
line  communication.  Using  this  principle  means  that 
no  additional  cables  to  the  pump  are  required.  The 
communication  of  data  is  effected  by  means  of  a  high-
frequency  signal  transmitted  to  the  power  supply  cable. 

In situations where multiple EZ Boost BMQE pump power 
cables  are  run  parallel  in  wiring  trays  or  conduit  and 
less  than  12  inches  apart,  the  possibility  for  undesired 
communication  between  units  exists.

  When  this  occurs, 

intermittent or continuous NO CONTACT is typically seen. 
Other unexpected errors may also be seen.

There  are  two  ways  to  eliminate  the  possibility  of  cross 
communication:

Pressure

Flow

A

Stop

+7 PSI

Start 

-7 PSI

Controlling 
±3 PSI

Dynamic 
variations 
±7 PSI 

GPM

0.8

A = Pressure setting

LEZTL01.indd

10/8/2004, 1:39 PM

14

Summary of Contents for 15 BMQE 05A-110

Page 1: ...BMQE Booster Pump Tank and Controller Product Guide and Installation and operating instructions Please leave these instructions with the pump for future reference Quick Selection Guide Page 16 Quick I...

Page 2: ...nd PE ground 20 Contents EZ BoostTM System 6 3 2 Motor leads PUMP terminals 3 4 and PE ground 20 6 3 3 Notes 21 6 4 Positioning the pressure sensor 21 6 4 1 Connection of the pressure sensor 21 6 5 Di...

Page 3: ...ributing to a better quality of life and healthier environment One of the 3 largest pump companies in the world World headquarters in Denmark North American headquarters in Kansas City Manufacturing i...

Page 4: ...c unit with a frequency converter for variable frequency and soft starting Product Guide EZ BoostTM System The MSE 3 motors features high efficiency within a wide load range The high and flat efficien...

Page 5: ...o 33 7 5 0 to 39 8 8 Maximum pump pressure ft m PSI 300 91 4 130 290 88 4 125 208 63 4 90 Pipe connection 1 25 NPT inlet 1 NPT discharge Product Guide EZ BoostTM System 5 0 5 10 15 20 25 30 35 Q US GP...

Page 6: ...l 304 30 Cone Polyamide PVDF 32 Guide vanes Polyamide PVDF 39 Spring Stainless steel 316 LN 55 Pump sleeve Stainless steel 316 64 Priming screw Polyamide PVDF 70 Valve guide Polyamide PVDF 86 Lip seal...

Page 7: ...t H 0 20 40 60 80 100 120 140 P psi 0 20 40 60 80 100 H m 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 Q m h 15 BMQE 60 Hz 07B 180 5 stage 05A 110 3 stage 0 2 4 6 8 10 12 14 16 18 Q US GPM 0 0 0 1 0 2 0 3...

Page 8: ...0 200 250 300 ft H 0 20 40 60 80 100 120 140 P psi 0 20 40 60 80 100 H m 0 1 2 3 4 5 6 7 Q m h 05A 80 2 stage 05B 120 3stage 10C 190 5 stage 0 5 10 15 20 25 30 Q US GPM 0 0 0 2 0 4 0 6 hp P2 0 20 40 6...

Page 9: ...120 140 160 180 200 220 ft H 0 10 20 30 40 50 60 70 80 90 P psi 0 1 2 3 4 5 6 7 8 9 Q m h 0 10 20 30 40 50 60 70 H m 05B 90 2 stage 10C 130 3 stage 0 5 10 15 20 25 30 35 Q US GPM 0 0 0 2 0 4 0 6 hp P2...

Page 10: ...00 240 4 6 5 0 26 11 8 15 BMQE 07B 180 91128526 1 408 1 05 200 240 7 1 8 0 29 13 2 22 BMQE 05A 80 91128528 0 845 0 63 200 240 3 9 5 0 26 11 8 22 BMQE 05B 120 91128529 1 408 1 05 200 240 5 6 8 0 29 13...

Page 11: ...er It is recommended by Grundfos that the pump be installed with sound and vibration dampening equipment such as flexible piping adapters and anti vibration mounting The pump should not be mounted in...

Page 12: ...g indications see drawing below 1 Flow indicator 2 System pressure setting 3 System ON OFF 4 Button lock indicator 5 Dry running indicator 6 Service needed in case of No contact to pump Over voltage U...

Page 13: ...21987 Sensor Description Rating Material number Pressure sensor kit for EZ Boost controller 0 to 120 PSI 1 2 NPT 96437852 Diaphragm tank Duty range Pre charge pressure 40 PSI Max operating pressure 15...

Page 14: ...justs the pump performance accordingly to maintain constant pressure by changing the pump speed At low flow the pressure will drop slowly When the pressure in the tank is 7 PSI below the setpoint the...

Page 15: ...es above 280 V With a rated voltage of 110 115 V 60 Hz the pump will be cut out if voltage falls below 75 V or rises above 150 V The motor is automatically cut in when the voltage is again within the...

Page 16: ...Constant Pressure System should consist of Pos 1 EZ Boost BMQE pump 2 EZ Boost controller 3 Diaphragm tank recommended size 2 U S gallons 8 liter 130 psi 2 3 4 1 5 6 6 Additional boost pressure requi...

Page 17: ...oming power BMQE pump and pressure sensor to EZ Boost controller PE PE POWER PUMP 1 2 3 4 24V IN GND SENSOR 5 Connect incoming power BMQE pump and pressure sensor to EZ Boost controller 1 2 3 4 6 Clos...

Page 18: ...ge PSI PSI 9 Switch on EZ Boost controller 9 Switch on power Green light is on 10 Verify that BMQE pump is operating 10 Verify that BMQE pump is operating Consult Troubleshooting Section 11 Verify tha...

Page 19: ...ntroller must not be used as a safety switch when installing and servicing the pump Rain tight or wet location hubs that comply with the requirements in the standard for Fittings for Conduit and Outle...

Page 20: ...ble sizing Single phase 60 HZ maximum cable length motor service to entrance Motor rating Copper wire size AWG Volts HP 14 12 10 Maximum cable length ft m 115 0 50 100 30 5 160 48 8 250 76 2 230 0 50...

Page 21: ...with a 2 gal diaphragm tank Install a diaphragm tank to insure that the BMQE will shut off at zero flow The diaphragm tank must be installed at some point between the BMQE pump and the pressure senso...

Page 22: ...p when installed vertically 6 9 Generator Operation Power may be supplied to BMQE pumps by an adequately sized generator The generator must be sized 50 above the pumps P1 input power values See follow...

Page 23: ...st controller face the pipe shows run lights when the pump is operating When the pump is not operating none of the flow indicator lights are on see fig 7 Fig 7 7 2 3 Pressure setting The two arrow but...

Page 24: ...ps causing the motor to increase speed If the power consumption falls below the dry run setting for an accumulated time of 5 seconds and the motor speed is within 1000 rpm of the max speed the EZ Boos...

Page 25: ...ective Overload Over temperature Speed reduction Voltage alarm No contact to pump see Fig 14 Flashing green light when the pump control is working correctly Permanent yellow light when the pump is run...

Page 26: ...or SQE with instructions for dismantling and assembly of pump and motor 8 2 EZ Boost Controller Service Before starting any work on the EZ Boost controller make sure that the electricity supply has be...

Page 27: ...the strainer c The pump is defective Pull the pump out of the sleeve and repair replace the pump 3 The BMQE runs at reduced capacity a The valves in the discharge pipe are partly closed blocked Check...

Page 28: ...the pump has not started yet proceed as follows Press the on off button for 5 seconds If the pump starts the EZ Boost controller or the sensor may be defective Note The pressure is not controlled and...

Page 29: ...cation part is defective Reduce the length of the pump cable Switch off the main power supply to the EZ Boost controller Switch on the main power supply again The pump is now connected direct to the m...

Page 30: ...values in Section 5 Note As the voltage is detected at the motor allow for the voltage drop in the pump cable 8 The EZ Boost controller indicates Dry running If the power consumption is lower than the...

Page 31: ...p or motor 13 The EZ Boost controller indicates Sensor defective a The pressure sensor is defective Check that the sensor is wired correctly If the sensor type is 4 20 mA measure the DC voltage across...

Page 32: ...connection in leads possibly in the cable joint Too low supply voltage see item 1 9 Factory settings Alarm 200 240 V motors 100 115 V motors SQ SQE SQE NE 03A and 05A models SQ SQE SQE NE05B and 07B...

Page 33: ...2 9 15 0 5 5 55 5 8 1 96 0 2 9 15 7 5 5 56 2 8 1 96 7 3 0 16 5 5 6 57 0 8 2 97 5 3 0 17 2 5 6 57 7 8 2 98 2 3 1 18 0 5 7 58 5 8 3 99 0 3 1 18 7 5 7 59 2 8 3 99 7 3 2 19 5 5 8 60 0 8 4 100 5 3 2 20 2 5...

Page 34: ...LEZTL01 indd 10 8 2004 1 39 PM 34...

Page 35: ...ranty 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 suppor...

Page 36: ...ighton Road Oakville Ontario L6H 6C9 Canada Telephone 905 829 9533 Fax 905 829 9512 Bombas Grundfos de Mexico S A de C V Boulevard TLC 15 Parque Stiva Aeropuerto Apodaca N L 66600 Mexico Telephone 52...

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