8

6

100 3 800 12 4001

EXPANSON-VEXPANSON-Hbar

kW

déverseur bâche

1 pompe de maintien1 pompe de secours

déverseur bâche

1 pompe de maintien

Principe EXPANSON-V Principe EXPANSON-H

expanson

1

•  Maintains pressure  in  closed  circuits  ex-posed to temperature variations.•  Absorbs and compensates the expansion and retraction of the network.•  Allows automatic or manual filling of an ins-tallation via a tank,  isolating the heating or air-conditioning circuit  from the town water supply.

For hot water heating circuits (VDI 2035) and chilled-water circuits (up to 40% glycol).-  residential and office buildings,-  hotels, hospitals, clinics,-  shopping centres, shops,-  schools, universities, barracks.

operating limitsTemperature range : +5° à +90°C

Max. ambient temperature : +50°C

expanson-h expanson-v

Operating pressure to be maintained :

≤ 6 bar ≤ 8 bar

Total installed load : 3 800 kW 12 400 kW

Nbr. of pumps : 1 - 2 2

Pipe ND :  G1 tappedg11/2 threaded

g11/2 threaded

appliCations

expansIon seTsHot water - Chilled water

50 Hz

N.T. N° 127-2/ENG. - Éd.4/04-08

•  ExPANsON-h one-pump version mounted on tank

•  ExPANsON-V version with electronic control box (separate storage tank)

tankdischarge device

1 standby pump1 pump On1 standby pump

tankdischarge device

expanson

2

Design oF the expanson-hPressure maintenance system using pump(s) and an adjustable discharge device.• expanson-h, two-pump version• Set with :-  two horizontal multi-stage pumps connected to tank by galvanized cast-iron pipe.-  A standby pump is available.• expanson-h, one-pump version• Set with :-  one horizontal multi-stage pump connected directly to tank.•  Both versions have :-  an  electronic  regulation  box  (CE),  with automatic change of pump starting order in twopump version,-  an adjustable discharge device with filter,-  a set of isolating valves and one check valve per pump,-  one set isolating valve (one-pump version), -  one control pressure switch and two safety pressure switches.The assembly is mounted on a base andconnected to a galvanized steel tank (200 to1,500 liters).

Design oF the expanson-v

Pressure maintenance system using a pump and an adjustable discharge device.• Set with :-  two vertical multi-stage pumps (one on stan-dby) for reinjection of water into the network,-  an adjustable discharge device to let the ex-panded volume leak to the tank (with protec-ting filter),-  a regulation box, available in 3 versions :    CE =  electronic  CM =  electromechanical  CV =  speed controller-  two galvanized cast-iron pipes,-  one set of suction and discharge valves per pump,-  one quiet check valve per pump,-  one pressure switch for automatic control of pumps (CE and CM),-  one pressure transmitter (CV),-  two safety pressure switches,-  one  permanent  automatic  pump  degassing system.•  One open galvanized steel tank, 200 to 5,000 liters, with automatic filling. The  set  and  tank  are mounted  on  separate bases.

aDvantages oF the expanson-h set• Compact, light-weight monobloc assembly.

• Economical set, easy to install.• Operation fully automatic.• Assembly factory-installed on tank with transport base.

aDvantages oF the expanson-v set• Compact sets take little floor space.• Adjustments grouped on front and easy to make.

• Operation fully automatic.• Operating safety: fault reporting; shut-ting off of lights; permanent availability of a standby pump.

• Automatic filling with isolation between the heating or air-conditioning circuit and the town water supply.

• Adjustments grouped on front and easy to make.

• Complete isolation between the heating circuit and the town water supply.

• Permanent degassing of mechanical seals.

• Pump made of stainless steel, pipes and tanks galvanized.

• Automatic filling of tank under water line.

iDentiFiCation

expanson-h-206-1-M-600-ExPANsION application code

Type of horizontal multi-stage pump used in the set

Number of pumps : 1 or 2

Power supply :(M = single-phase, T = 3-phase)

Capacity of storage tank (in liters)

Codes  of  optional  accessories  (indicate  if ordered)

iDentiFiCation expanson-v-206-CE-T-

ExPANsION application code

Type of vertical multi-stage pump used in the set

Control :CM : electromechanical boxCE : electronic boxCV : speed controller box

Power supply :(M = single-phase, T = 3-phase)

Codes  of  optional  accessories  (indicate  if ordered)

m (sleeves)CB (counter-flanges)2D (2nd discharge device)aB (anti-hammer)F  (pulse-type cap-tor - allows leak detection)

v  (set isolating valve for 2-pump version)

m (sleeves)CB (counter-flanges)2D (2nd discharge device)aB (anti-hammer)F  (pulse-type cap-tor - allows leak detection)

v  (set isolating valve for 2-pump version)

7

7

11

12

Ød

4

5

83

3a3b

15

12

13

14

9

10b10a

6

Øa

Øc

Øb

6

5

7

4

2

32b

10

17

8

9

10

16

2a12b

12a

13

1

11

18

19

14

15

L

L1

H3

H2

1"

1/2"

1"

expanson

3

DesCription oF the expanson-h

DesCription oF the expanson-v

  01 -  Control and automation box (electronic).  02 -  Tank (200, 400, 600, 800, 1 000 ou  

1 500 liters depending on model).  03 -  horizontal multi-stage pump(s).  03a - Filling plug. 03b - Drain plug.  04 -  Discharge device.  05 -  Filter with protecting strainer.  06 -  Pressure gauge.

  07 -  set isolating valve (one-pump version only).  08 -   Check valve.  09 -  Control pressure switch. 10a -  Low pressure safety switch. 10b -  high pressure safety switch.  11 -  Filling control float switch.  12 -  Dry-running float switch.  13 -  Electrovalve.  14 -  Town water isolating valve.

  15 -  Pump suction isolating valve. Øa -  Installation connection port    (Ø1” tapped, in 1-pump version -      Ø1”1/2 threaded in 2-pump version). Øb -  Tapped filling port (Ø1/2”). Øc -  Tapped discharge device port (Ø1”). Ød -  Tapped drain port (Ø1”).

Version shown: electromechanical control box01 -  Control and automation box (electromechanical, 

electronic, or speed controller box).  02 -  Two Multi-V vertical multi-stage pumps. 02a -  Filling plug. 02b -  Drain plug.  03 -  suction pipe.  04 -  Pump suction isolating valve.  05 -  Discharge pipe.  06 -  Pump discharge isolating valve.  07 -   Check valve.  08 -   Discharge device.  09 -  Filter with protecting strainer.  10 -  Discharge device isolating valves.  11 -  Control pressure switch (CE, CM versions). 12a -  high pressure safety switch. 12b -  Low pressure safety switch.  13 -  Pressure gauge.  14 -  Electrovalve.  15 -  Town water isolating valve Ø1/2”.  16 -  Permanent automatic pump degassing device.  17 -  Discharge device adjustment plug. Not shown: pressure captor and lifting rings (CV version). TANK (200 à 5 000 liters) :  18 -  Filling control float.  19 -  Dry-running float switch.(Livré raccordé 

au coffret avec 5 m de câble).

Puissanceutile inst.

à 90ϒC

à 110ϒC

m - bar à maintenir70 - 8

60 - 7

50 - 6

35 - 4,5

25 - 3,5

15 - 2,5

EXPANSON - H

H206-1206-2

H206-1206-2

H205-1205-2

H205-1205-2

H204-1204-2

H204-1204-2

H203-1203-2

H203-1203-2

Nous

consulter

476 1045 1392 1857 2357 3807 5250 5991 7574 8592 9822 12473

5,8 12,5 17 22 28 45 63 72 91 103 118 150

4 8,8 11,7 15,6 20 32 44 50 64 72 82 105m

m

kW

Bâche 200 400 600 800 1000 1500 2000 2500 3000 3500 4000 5000 l

3

3Si installation :

Puissanceutile inst.

à 90ϒC

à 110ϒC

m - bar à maintenir70 - 8

60 - 7

50 - 6

35 - 4,5

25 - 3,5

15 - 2,5

EXPANSON - V

V206

V208

V207

V205

V204

V203

V206

V208

V207

V205

V204

V203

476 1045 1392 1857 2357 3807 5250 5991 7574 8592 9822 12473

5,8 12,5 17 22 28 45 63 72 91 103 118 150

4 8,8 11,7 15,6 20 32 44 50 64 72 82 105m

m

kW

Bâche 200 400 600 800 1000 1500 2000 2500 3000 3500 4000 5000 l

3

3Si installation :

expanson

4

rapiD seleCtion oF expansion sets PRELIM. CALCULATIONSTheoretical volume of installation

Conversion of kW/h into liters

Heating element alone per 1 kW/h

for installations

steel convectors  7 liters

≤ 500 kWsteel radiators  7 litersCast iron radiators 10 litersheating plates  9 litersAll heating elements  7 liters > 500 kW

If the volume of the installation is not known, calculate on the assumption of 12  litres per kW useful power.

Example opposite : pressure to be maintained = 4 bars and,installation power = 1600 kW, choose:-   ExPANsON-h- 205 set with 1 or 2 pumps-  with 800 liters tank.

HOT-WATER CIRCUITExpansion volume :Vexp = Vt x (Cm – Cr)where :vt :  is the total volume of the installationCm :  is  the coefficient of expansion at  the 

mean operating temperature, i.e. :boiler outlet T° + return T°

2

Cr :  is the coefficient of expansion at the filling temperature (10° to 12°C)

Example opposite : static head = 55 metres and,volume  of  installation  =  80  m3  (at  90°C), choose :-   ExPANsON-V-207-CE-T-  with 3000 liters tank.

to maintain

atat

atat

to maintain

tank

tank

Consult us

Installed load

Installed load

if installation

if installation

6

100 3 8001

bar

kW

8

6

100 3 800 12 4001

bar

kW

expanson

5

operating prinCiple

a) HeatingWhen  the burner starts  (heating system) or the cooler stops (air-conditioning system), the temperature in the circuit increases and with it the pressure.When  the  pressure  exceeds  the  discharge device setting,  the discharge device opens and lets the excess expanded water leak back to the storage tank (expansion stage) until the pressure falls back to its setting.

b) CoolingWhen  the burner stops  (heating system) or the cooling unit starts  (air-conditioning sys-tem),  the  temperature of  the  liquid  falls and the  static  pressure  decreases  (contraction phase).When  the  pressure  reaches  the  minimum that must  be maintained  in  the  installation, the control pressure switch starts the pump. The pump draws water from the storage tank and discharges  into  the  circuit  to  raise  the pressure to the pump stopping value.When  the  pressure  in  the  installation  is steady, neither the discharge device nor the pump operate.

DETERMINATION OF ADJUSTMENTSpression de tarage dessoupapes de sécuritéalarme pressiontrop forte

alarme pressiontrop faible

ouverture maxi du déverseur

arrêt pompe

pompe

déverseur

variation dela pressiondansl'intallation (3)

PRESSIONMINI(2)

PRESSIONMAXIDANSL'INSTALLATION

garde de sécurité(5 à 10 m de CE)

tension de vapeur (s'il y a lieu){{

HAUTEUR STATIQUE(1)

(1) : Hauteur statique au point le plus élevé de l'installation. Valeur à utiliser pour entrer dans le tableau de sélection par l'échelle des hauteurs.(2) : Pression mini à maintenir par le module. Valeur à utiliser pour entrer dans le tableau de sélection par l'échelle des pressions.(3) : Correspond au différentiel du module, soit 0,8 à 1 bar.

mise en route pompe . . . .

. . . . . .

COFFRETELECTRONIQUE1-2 POMPES

COFFRETELECTROMECANIQUE2 POMPES

COFFRETELECTRONIQUE2 POMPES

COFFRETVARIATION DE VITESSE2 POMPES

Bâches séparées :200à 5 000 litres

Montés sur bâches :200à 1 500 litres

stoppage of pump

safety allowance(5 to 10 m w.g.)

Vapour pressure  (if applicable)

eleCtroniCBox1 OR 2 PUMPS

Installed on tanks:200 to 1,500 liters

Separate tanks:200to5,000 liters

eleCtroniCBox2 PUMPS

eleCtro- meChaniCalBox2 PUMPSspeeD ControllerBox2 PUMPS

MAX.PRESSUREininstallation

sTATIC hEIGhT

MIN.PREssURE

Discharge device

pump

Pressurevariation ininstallation

high pressure alarm

Low pressure alarm

safety valve  pressure setting

Max. discharge deviceopening

starting of pump

static height to highest point in installation. Value to use for entry intothe selection table by height scale.Min. pressure the module must maintain. Value to use for entry intothe selection table by pressure scale.Corresponds to the differential of the module, 0.8 to 1 bar.

expanson

6

SUPPLIESstanDarD-  Pump isolating valves,-  set isolating valve ( ExPANsON-h - 1 pump),-  Check valve,-  Discharge device with protecting filter,-  Pressure gauge,-  Dry-running and filling floats,-  Filling electrovalve.

optional-  set isolating valves ( ExPANsON-h - 2 pumps /  ExPANsON-V),-  Anti-vibration sleeves,-  Counter-flanges,-  Anti-hammer reservoir,-  Pulse meter,-  2nd discharge device.

installation prinCiple expanson-h —1 pump

expanson-v Electromechanical control box

1

10 10 3 3 8 6

5 5 9 24

12345

9

6

8

7

8

expanson

7

ELECTRONIC CONTROL BOX: DESCRIPTION AND OPERATIONBox in conformity with standards in force.sealed, IP 55 protection.Functions -  Motor  protection  by  electronic  thermal relays,-  Automatic  starting and stopping of pumps according  to  minimum  pressure  to  be maintained.-  Change of starting order (2-pump version).Power supply 3-phase:    230/400 v - (50hz)1-phase (optional) :  230 v - (50hz)

Description: 2-pump versionOn front panel Rotary safety and power switch control strip with :

1   Power On indicator2   Dry Running indicator3   Low Pressure indicator4   high Pressure indicator5   Filling On indicator6   On indicator for each pump7   Fault indicator for each pump8   Three-way switch for each pump : auto - o 

- manu (non-latching)9   “ Electrovalve opening switch : auto - manu 

(latching)

Inside 1   General  disconnecting  switch  with  line 

power connecting terminals2   12V transformer supplying controls3   Contactor (1 per pump) with motor connec-

ting terminals4   Terminal block for external units (pressure 

switch, float switch, fault reporting)5   Thermal relay with sliding motor current 

adjustment contact6   Connectors for power supply jack of auto-

mation board

7   Automation and display board8   Voltage selection switch (230 or 400 V)9   selector for Low pressure fault operating 

mode : a- pump stops on fault / b : pump stays running on fault

10   Motor protection fuses

Operation: 2-pump versionPrinciple The operation of the set is automated by one control pressure switch and two safety pres-sure switches (Low and high pressures).The other pump is on standby.When the control pressure switch closes at its low pressure setting, the pump starts. When the control pressure switch opens at its high pressure setting, the pump stops.At each cycle, the pump starting order is changed.

When a pump fault is detected, the standby pump is started immediately.If the switch of the pump that is to be started is set to O (off), the set automatically changes over to the other pump.In  manual  operation,  with  the  switch  held in  the non-latching MANU position,  the  two pumps can operate simultaneously.Filling In the automatic mode, the electrovalve ope-ning  switch  responds  to  a  contact  closure (float switch) and fills the installation.Filling can also be controlled manually–set the switch to MANU (latching position).saFetY At  high  pressure,  the  pump  in  operation stops.At Low pressure, there is a choice of modes,-  switch set to A, the pump stops (to eliminate the risk of flooding if there is a leak);-  switch set to B, the pump continues to run (to eliminate the risk of vaporization once the risk of a leak has been neutralized).Dry running, detected by the float in the tank, stops the pump.DTU 65-11 requires the cutting off of the lights in the three cases mentioned above. An NC dry contact is provided for this.FAULT REPORTING There are NO dry contacts for :-  general fault,-  dry running,-  individual pump fault,-  low pressure, and -  high pressure.

Operation: 1-pump versionIn the case of a 1-pump  ExPANsON-h - theelectronic box has only one power line.The automation board is adapted to operation without  a  standby  pump, with  only  general fault reporting (NO contact).The cutting off of the lights (NC contact) is still mandatory.

46

2

3

5

2 3 5 4 7

6

expanson

8

speeD Controller BoxBox in conformity with standards in force.sealed, IP 559 protection.Functions -  Motor  protection  by  magneto-thermal circuitbreakers,-  Automatic  starting and stopping of pumps according  to  minimum  pressure  to  be maintained.-  Change of pump starting order.Power supply Three-phase :  230/400 V - (50hz)DesCription On front panel Lockable outside safety and power discon-necting switch;  closing by key  lock;  control strip with :1   Power On light2   Dry Running light3   Low Pressure light4   high Pressure light5   Filling On light6   On light for each pump7   Fault light for each pump (ALARM)8   Controlled-pump Fault light9   speed controller Fault light10   Controlled-pump Fault reset11   speed controller Fault reset12   speed controller ON-OFF switch

13   Three-way switch for each pump: AUTO O-MANU (non-latching)

14   Electrovalve  opening  switch:  AUTO-MANU (latching)

Inside 1   General  disconnecting  switch  with  line 

power connecting terminals2   24V transformer supplying controls3   Contactor (1 per pump) with motor connec-

ting terminals4   Terminal block for external units (pressure 

switch, float switch, fault reporting)5   Thermal circuit-breaker with sliding mo-

torcurrent adjustment contact and  reset pushbutton for fixed pump

6   speed controller7   selector for Low pressure fault operating 

mode :•  with jumper: pump stops on fault•  without  jumper:  pump  stays  running  on fault.

operation The pressure transmitter records the pressure in the network and sends signals to the speed controller (frequency converter).

eleCtromeChaniCal Control BoxBox in conformity with standards in force.sealed, IP 559 protection.Functions -  Motor  protection  by  magneto-thermal circuitbreakers,-  Automatic  starting and stopping of pumps according  to  minimum  pressure  to  be maintained.-  Change of pump starting order.Alimentation 3-phase :    230/400 V - (50hz)1-phase (optional) :  230 V - (50hz)DesCription On front panel Outside safety and set power disconnectingswitch; closing by key lock; control strip with :1   Power On light2   Dry Running light3   Low Pressure light4   high Pressure light5   Filling On light6   On light for each pump7   Fault light for each pump

8   Three-way switch for each pump: AUTO - O - MANU (non-latching)

9   Electrovalve  opening  switch:  AUTO  - MANU (latching)

Inside 1   General  disconnecting  switch  with  line 

power connecting terminals2   24V transformer supplying controls3   Contactor (1 per pump) with motor connec-

ting terminals4   Terminal block for external units (pressure 

switch, float switch, fault reporting)5   Thermal  circuit-breakers  with  sliding 

motor  current  adjustment  contact  and reset pushbutton

6   selector for Low pressure fault operating mode :

•  with jumper: pump stops on fault•  without  jumper:  pump  stays  running  on fault.

operation The operation of the set is automated by onecontrol pressure switch and two safety pres-sure switches. LThe operating principle is the same as that of the electronic control box.

If  the pressure  falls below  the set-point,  the controller increases the speed of the controlled pump. When the pressure reaches or exceeds the  setpoint,  the  controller  decreases  the speed of the pump.

When the pressure in the network is steady and the controller is at minimum speed, the pump is stopped after a delay.

14

15

L

L1

H3

H21"

1/2"

1"

1"

ØD

H

PP1

P2P3

H1

L

H3

H2

1"1/2

1"

1/2"

expanson

9

eleCtriCal Data anD Dimensions oF expanson-h

Reference : expanson-h 203 to 206Numbers of

pumps 1 1 1 2 1 2

Tank Capacity ØD h l l1 p p h1 h2 h3 p1 p1 p2 p3liters mm mm mm mm mm mm mm mm mm mm mm mm mm200 500 1300 610 150 1200 1250 500 960 1010 920 950 510 300400 600 1700 770 150 1300 1350 500 1460 1510 1020 1050 600 350600 700 1700 870 150 1400 1450 500 1460 1510 1120 1150 700 400800 800 1700 970 150 1500 1550 500 1460 1510 1220 1250 770 4501000 900 1700 1070 150 1600 1650 500 1460 1510 1320 1350 870 5001500 1250 1350 1420 150 1950 2000 500 1010 1060 1670 1700 1100 675

Set Reference Number and type of pump

Total installed

motor power p2

Max. current

3-phase 400V 1-phase 230VkW A A

 ExPANsON-h 203-(1 or 2)-M-* 1 or 2 Multi-h 203M 1 or 2x 0,55 - 1 or 2x4 ExPANsON-h 203-(1 or 2)-T-* 1 or 2 Multi-h 203T 1 or 2x0,55 1 or 2x1,7 - ExPANsON-h 204-(1 or 2)-M-* 1 or 2 Multi-h 204M 1 or 2x0,55 - 1 or 2x4 ExPANsON-h 204-(1 or 2)-T-* 1 or 2 Multi-h 204T 1 or 2x0,55 1 or 2x1,7 - ExPANsON-h 205-(1 or 2)-M-* 1 or 2 Multi-h 205M 1 or 2x0,75 - 1 or 2x5,1 ExPANsON-h 205-(1 or 2)-T-* 1 or 2 Multi-h 205T 1 or 2x0,75 1 or 2x2 - ExPANsON-h 206-(1 or 2)-M-* 1 or 2 Multi-h 206M 1 or 2x1,1 - 1 or 2x6,8 ExPANsON-h 206-(1 or 2)-T-* 1 or 2 Multi-h 206T 1 or 2x1,1 1 or 2x2,8 -*Tank capacity : 200, 400, 600, 800, 1000 or 1500 liters

750

540

550

220

150

30

1080

450

470

100

50

A

H

D

C

G

B

E

F

90

H

600

450

300

190

100

L

ØD

P

A

H

D

C

G

B

E

F

90

H

600

450

300

190

100

L

ØD

P

expanson

10

eleCtriCal Data anD Dimensions oF expanson-v

Set reference Number and type of pumps

Total installed motor power P2

Max. current 400V 3-phase

kW A ExPANsON-V 203-CE or -CM or -CV  2 Multi-V 203T 2 x 0,55 2 x 1,35 ExPANsON-V 204-CE or -CM or -CV  2 Multi-V 204T 2 x 0,75 2 x 1,7 ExPANsON-V 205-CE or -CM or -CV  2 Multi-V 205T 2 x 0,75 2 x 1,7 ExPANsON-V 206-CE or -CM or -CV  2 Multi-V 206T 2 x 1,1 2 x 2,4 ExPANsON-V 207-CE or -CM or -CV  2 Multi-V 207T 2 x 1,1 2 x 2,4 ExPANsON-V 208-CE or -CM or -CV  2 Multi-V 208T 2 x 1,5 2 x 3,2

•Electronic control box versionConnected by 1 1/2” threaded pipes on either left or right side

Storage tank

Capacity ØD p h lliters mm mm mm mm200 500 600 1200 540400 600 700 1600 700600 700 800 1600 800800 800 900 1600 9001000 900 1000 1600 10001500 1250 1350 1250 13502000 1250 1350 1800 13502500 1250 1350 2000 13503000 1500 1600 1800 16003500 1500 1600 2000 16004000 1600 1700 2000 17005000 1800 1900 2000 1900

A = suction port  1”1/2 GB = Discharge device connection  1”1/2 GC = Filling float 1”1/4 GD = Dry-running float  1”1/4 GE = Discharge device port  1” GF = Electrovalve connection 1/2” GG = Drain port 1” Gh = Degassing port 1/4”G

750

540

550

220

150

30

1350

450

470

100

750

540

550

220

150

301350

450

470

100

750

550

110

1670

450

500

65

750

550

110

1670

450

500

65

expanson

11

Dimensions oF expanson-v Electromechanical control box versionConnected by 1 1/2” threaded pipes on either left or right side

Speed controller box versionConnected by 1 1/2” threaded pipes on either left or right side.

expanson

12

FEATURESa) Electrical-  3-phase, 230/400V, 50 hz, without neutral, -  single-phase,  230V  optional  (specify with order).-  All controls are connected at the factory.-  To be done: connection to line power, fault reporting, and cutoff of  lights  (as per DTU 65-11).

b) Installation-  On stable horizontal surface.-  hydraulic connections to be made :-  Town water supply.-  Tank discharge device and drain.-  set to installation return.-  set  and  pump  degassing  to  tank (ExPANsON-V).-  Level floats to tank (Version V)

c) Packaging-  set under cover on pallet.-  separate tank for ExPANsON-V set.

d) Maintenance-  Replacement  or  repair  of  component  ack-nowledged defective on the set.-  Recommended spare parts for pump(s).

options-  set isolating valves,-  Anti-vibration sleeves in pipe diameters,-  Counter-flanges in pipe diameters,-  Anti-hammer reservoir,-  Pulse-type water meter.-  2nd discharge device, connnected to right or left side of set ( ExPANsON-V).

stanDarDsCompliance with the following standards :•  DTU  65-11,  which  requires  cutting  off  the lights in the event of :-  dry running,-  low pressure,-  high pressure.•  NFC  15-100  on  low-voltage  electrical installations.•  EN 60-204 on the safety of machines.•  CEM EN 61000-6-1 and 6-2, •  CEM EN 61000-6-3 and 6-4,•  EC declaration: “machines” directive.

speCiFiCations oF Components oF setsPump(s)-  Cent r i fuga l ,   mul t i - s tage,   ver t i ca l (ExPANsON-V or horizontal (ExPANsON-h), all stainless steel.-  Mechanical seals,-  230/400V, three-phase, 50 hz motors.-  single-phase motor optional in version V.-  Insulation class 155 (F).-  Protection index at least IP 54.

Control boxessee descriptions on preceding pages.

Discharge device-  Check  valve  spring  and  seat  of  stainless steel.-  Body and valve of brass.-  Tapped holes, ø 1”.-  MDPE adjustment membrane.-  KVs coefficient: 5.The discharge device assembly has a leakcontrol plug to optimize the opening pressure adjustment.

Discharge device protection filter-  Brass housing.-  Tapped holes ø 1”.-  stainless steel strainer can be removed quic-kly for cleaning.

Pump control pressure switch-  With glycerin-bath pressure gauge. Contact closes when pressure falls.-  Differential adjustable from 0.5 to 1 bar.

Safety pressure switchesThere are two safety pressure switches on the discharge pipe :•  high pressure: stops pump. Fault reporting (NO  contact)  and  cutting  off  of  lights  (NC contact).•  Low  pressure:  fault  reporting NO  contact) and cutting off of lights NC contact).

Notea jumper inside the control box givesa  choice  of  two  operating modes  when there is a Low pressure fault :A)  stopping the pump so there will be no 

risk of flooding if there is a leak in the installation.

B)  Keeping the pump running to forestall the risk of vaporization in the installa-tion if the risk of a leak can be ruled out, by a pulsetype meter, for instance.

Suction and discharge pipes (2 pumps set) Made of galvanized cast iron, 1 1/2” (40-49), threaded.

Storage tankVertical, made of galvanized steel, with :•  2  level  regulators  (filling and dry-running), factory-wired to the control box, to be instal-led on the tank ports.

•  1  filling  electrovalve,  factory-wired  to  the control box, to be installed on the tank.

Notea splined coupling provided with the tank can be installed in place of the electrovalve for direct  filling with  town water when the installation is first filled.

•  1 discharge device port and 1 drain port, on the same plane to facilitate connecting to a drain.•  1 port  for connection of permanent de-gassing of mechanical seals (version V), with adjustment valve  to avoid any  risk in the event of a prolonged shutdown of the pumps.•  A  sheet-metal  lif ting  chassis  for transport.

Notethe  tank  is  filled under  the water  line  to avoid  agitation  and  oxygenation  of  the water while maintaining isolation from the town water supply.

•    ExPANsON-h (1 or 2 pumps) : tanks from 200 to 1,500 liters, on the set.•    ExPANsON-V (2 pumps) : tanks from 200 to 5,000 liters, separate from the set.

• Level regulators (filling and dry running) and filling electrovalve for storage tank