Wilo Rexa PRO Series Installation And Operating Instructions Manual Download Page 10

Installation and operating instructions Wilo-Rexa PRO 13

PRODUCT DESCRIPTION 

US English

composition), this can also affect many parameters 

of the pump.

If the pump is used in or switched over to a different 

fluid, observe the following points:

• 

The fluid can be contaminated by oil from the seal

-

ing chamber if the mechanical seal is defective.

Use with potable water is not permitted!

• Pumps that have been operated in dirty waste water 

must be cleaned thoroughly before being used for 

other fluids.

• Pumps that have been operated in sewage water 

containing feces and/or fluids that are hazardous to 

health must be decontaminated before being used 

with other fluids.

Clarification must be sought as to whether the 

pump can be used with another fluid at all.

2.7.  Sound pressure

Depending on the size and performance (kW) of the 

pump, it has a sound pressure level of approximately 

70 dB (A) to 90 dB (A) during operation.

However, the actual sound pressure level depends 

on several factors. These include, for example, the 

installation depth, installation method, fixation of 

accessories and piping, the duty point, immersion 

depth, etc.

We recommend that the end user takes an addition-

al measurement at the workplace once the pump 

is running at its duty point and under all operating 

conditions.

CAUTION: Wear ear defenders!
According to applicable laws and regulations, 

ear protection must be worn if the sound pres-

sure level is 85 dB(A) or more. The end user is 

responsible for ensuring compliance with this 

regulation.

2.8.  Note on conformity

This product was developed and manufactured in 

accordance with the applicable EU product direc-

tives, to which all products sold in the EU must 

conform.

This product therefore complies with the relevant, 

general safety and health requirements of the 

European Union, as well as the published European 

standards and internationally recognized German 

standards.

Since this product was not intended to be sold and 

used in the European Union, it does not have a CE 

marking.

It is therefore not permitted to sell it in the Euro-

pean Union.

3.  Product description

The pump is manufactured with great care and is 

subject to constant quality controls. Trouble-free 

operation is guaranteed if it is installed and main-

tained correctly.

3.1. 

Intended use and fields of application

DANGER: electrical hazard

When using the pump in swimming pools or 

other basins that can be entered, there is a risk 

of electrocution. Note the following:

•  Use is strictly forbidden if there are people in the 

pool or basin!

•  If there are no people in the pool or basin, pro-

tective measures must be taken in accordance 

with DIN VDE 0100-702.46 (or the appropriate 

national regulations). 

DANGER: 

explosive fluids!

Pumping explosive fluids (e.g. gasoline, kero

-

sene, etc.) is strictly prohibited. The pumps are 

not designed for these fluids!

Wilo-Rexa PRO… submersible pumps are suitable 

for pumping the following fluids, in intermittent or 

permanent operation:

• Wastewater

• Sewage containing feces

• Sludges with up to 8% dry matter (depending on 

pump type)

The submersible pumps must 

not

 be used for 

pumping the following:

• Potable water

• Fluids containing hard components such as stone, 

wood, metal, sand, etc.

• 

Highly flammable and explosive fluids in pure form

Intended use also includes compliance with these 

instructions. Any other use is regarded as improper 

use.

3.2.  Setup

The Wilo-Rexa pumps are submersible sewage 

pumps that can be operated vertically in station-

ary or portable wet well installation and vertically in 

stationary dry well installation.

Fig. 1.: Description 

1 Cable

5 Hydraulics housing

2 Handle

6 Suction connection

3 Motor housing

7 Pressure connection

4 Seal housing

Summary of Contents for Rexa PRO Series

Page 1: ...Pioneering for You Wilo Rexa PRO 6065992 Ed 04 07 2015 WH US Installation and operating instructions fr Notice de montage et de mise en service es Instrucciones de instalaci n y funcionamiento...

Page 2: ...Fig 3 Fig 2 Fig 1 1 5 7 6 3 4 2 1 5 6 6 3 3 4 2 S1 S1 S2 S3 7a 7b 1 1 5 9 6 3 4 2 S1 S1 S2 S3 8 7b 7a d A A min 1 x d A d min 0 3 x d B...

Page 3: ...Fig 5 Fig 6 Fig 4 1 4 8 3 3 6 5 2 7 U1 Z1 3 U2 4 Cr Z2 5 C S M 1 gn ye L N PE 1 2 6 3 4 gn ye 1 2 6 21 20 DK 5 1 2 4 3 M 3 gn ye W V 21 20 U PE 6 DK 5 1 2 4 3 M 3 gn ye W V 11 10 U PE 6 DK...

Page 4: ...M 3 gn ye W V 20 21 U PE 6 22 5 1 2 4 3 M 3 gn ye W V 10 11 U PE 6 12 max C min C Fig 8 5 4 3 W1 V1 U1 5 4 3 W2 V2 U2 1 max C min C 2 M 3 gn ye 20 21 PE 6 22 5 1 2 4 3 M 3 gn ye W1 V1 10 11 U1 5 4 3 W...

Page 5: ...Fig 9 1...

Page 6: ...port and storage 16 4 1 Delivery 16 4 2 Transport 16 4 3 Storage 16 4 4 Return delivery 17 5 Installation 17 5 1 General 17 5 2 Installation methods 18 5 3 Installation 18 5 4 Dry running protection 2...

Page 7: ...reserves the right to make tech nical modifications to units or components This operating and maintenance manual refers to the pump shown on the title page 1 5 Warranty In general the specifications i...

Page 8: ...e directives and regulations Safety information that refers only to material dam age is printed in gray without safety symbols 2 2 General safety When installing or removing the pump never work alone...

Page 9: ...connection may only be made if the switch gear complies with the harmonized EU standards Cellphones and other mobile radio equipment may cause malfunctions in the system WARNING electromagnetic radiat...

Page 10: ...nt general safety and health requirements of the European Union as well as the published European standards and internationally recognized German standards Since this product was not intended to be so...

Page 11: ...als if there is water ingress into the sealing cham ber through the mechanical seal on the fluid side 3 2 4 Seal The seal for the fluid and the motor compart ment is made via two mechanical seals The...

Page 12: ...mersed is not possible with all motors Observe the information on the rating plate Operating mode S3 50 is permissible if the necessary motor cooling is guaranteed by complete immersion for at least 1...

Page 13: ...plug Installation and operating instructions 3 8 Accessories Cable lengths up to 160 ft 50 m in fixed length increments of 40 ft 12 5 m or customized cable lengths on request Guide system Pump foot E...

Page 14: ...act coating fulfills its intended purpose Please note that elastomer parts and coatings be come brittle over time If the product is to be stored for longer than 6 months we recommend checking these pa...

Page 15: ...orresponding protec tion class must be observed In general switchgear is to be installed outside potentially explosive areas in such a way that it is protected from submersion When used in an explosiv...

Page 16: ...nd operating instructions for the guide system 2 Preparing the pump for operation on a guide sys tem about 1 3 h see the installation and operating instructions for the guide system 3 Installing the p...

Page 17: ...pipe system on the suction and pressure sides must be self supporting i e it may not be sup ported by the pump In addition the pump connec tion to the pipe system must be free of stress and vibration...

Page 18: ...qualified electrician ap proved by the local energy supply company in accordance with locally applicable regulations DANGER from incorrect connection With Ex rated pumps the power supply cable must be...

Page 19: ...inding 2 3 L U1 Z1 4 N U2 5 Z2 Connection for start and operating capacitor 6 DK Leakage detection for motor com partment green yellow gn ye PE Ground Connection WITHOUT capacitor switchgear If the un...

Page 20: ...oring When the low threshold is reached a preliminary warning may be issued when the high threshold is reached the motor must switch off When used outside potentially explosive areas the bimetallic st...

Page 21: ...injury when commissioning the pump the following points must be observed Commissioning of the pump may only be carried out by qualified and trained personnel in accordance with the safety instruction...

Page 22: ...an be vented by suitable venting devices in the system or if available using vent screws on the pressure port Check switching points of level control and dry running protection systems Check to ensure...

Page 23: ...at the temperature of the fluid and in the operating space does not fall below 37 F 3 C This ensures that the pump is always ready for op eration For extended downtime a regular monthly to quarterly 5...

Page 24: ...tenance or repair work the pump must be installed and connected as described in the In stallation section The pump must be switched on as described in the Commissioning section Note the following All...

Page 25: ...ng conditions 2 years Visual inspection of the power supply cable Visual inspection of accessories Visual inspection of the coating and housing for wear Functional inspection of all safety and monitor...

Page 26: ...e are relatively large deviations consult the manufacturer 8 3 5 Inspection of the switchgear relays used See the relevant installation and operating instruc tions for a description of the individual...

Page 27: ...free the impeller or clear the suction port 7 The fluid is too dense Consult the manufacturer Fault unit is running but not pumping 1 No fluid available Open inlet for tank or slide valve 2 Inlet bloc...

Page 28: ...ider the flow rate in the pipe The slower the flow rate the greater the risk of solids depositing in the pump and piping We therefore recommend a minimum flow rate of 2 3 ft s 0 7 m s at a pumping pre...

Page 29: ...the Electrical connection section the following points must be observed for Ex rated pumps The power supply cable must be connected outside the potentially explosive area or inside a housing with an...

Page 30: ...lowing points for Ex rated pumps The end user is responsible for defining the poten tially explosive area Only pumps with Ex approval may be used within a potentially explosive area Ex rated pumps mus...

Page 31: ...IL 60018 USA Phone 888 954 6872 Fax 888 945 6783 Manufacturing Facility 86 Genesis Parkway Thomasville Georgia 31792 USA Phone 229 584 0097 Fax 229 584 0234 WILO Canada Inc Bay 7 2915 10th Ave N E Cal...

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