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EMP WP29, Quick Start Manual

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EMP WP29 Quick Start Manual Download Page 12

 

Installation 

 

© 2017 EMP, Inc. 

12 

Plumbing 

Pump Inlet must be plumbed using 25.4mm (1.0 inch) diameter hose 

and/or thin walled tubing from the fluid supply to the pump inlet. A 

restriction in the inlet plumbing is allowed as long as the flow 

diameter is not less than 17 mm (0.75 inch) and does not exceed 

25.4 mm (1.0 inch) in length. 

CAUTION: Localized high spots in the plumbing will cause 

air to be trapped in the pump causing the pump to be air locked. 

The result of air trapped in the pump is loss of prime and no fluid 

moving resulting in water seal damage or potential system 

component damage. 

CAUTION: EMP warranty does not cover seal damage due to low lubrication. 

 

Improper installation with localized high spots 

Deviations from the recommended  plumbing must meet the inlet requirements specified in the installation 

manual. 

Hose Clamps 

When making the inlet and outlet hose connections to the pump it is recommended to use SAE20CT worm drive 

type hose clamps. Torque worm drive clamps to 45 in-lbs per SAE J1508. Spring type clamps are not 

recommended. 

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Summary of Contents for WP29

Page 1: ...ECN5969 C ME 5 12 21 Revisions ECN7280 9970002320 Rev C 05 12 2021 2017 EMP Inc 1 Quick Start Guide WP29 WP32 Electric Water Pump This manual is effective for consumer installations of EMP WP29 and WP32 water pumps OEM Installers must contact EMP for production requirements ...

Page 2: ...ered Machined Products Inc reserves the right to change the content of this manual at any time without notice 2017 EMP Inc 2 Engineered Machined Products Inc 2701 North 30th Street Escanaba MI USA 49829 Phone 1 906 789 7497 www emp corp com Service emp corp com Product Overview The WP29 and WP32 are electrically powered fluid pumps available in 12 volt DC and 24 volt DC configurations The pump is ...

Page 3: ...and Bolt Spacing 6 Identification 7 EMP Water Pump Model Codes 8 Installation 9 Environment 9 Orientation 9 Incorrect Pump Orientation and Reasons 11 Plumbing 12 Hose Clamps 12 System Fill Procedure 13 Approved Fluids 13 Fill Procedure 13 Wiring 14 Recommended Wiring Practices 14 Connector Information 15 Mating Connectors 15 On Off Single Speed Control 16 Example On Off Application Schematic 16 Ac...

Page 4: ...or be made unsafe by the operation maintenance or repair procedures that you choose Additional Information Access https www emp corp com support for service software service bulletins service manuals service drawings and other documents related to your installed EMP systems and components First time users may create a free customer login at http www emp corp com account register Technical Help Con...

Page 5: ...s and their operation are important before the removal or disassembly of any component WARNING Make sure the equipment cannot move before doing any work or diagnostic procedures on the EMP component system or vehicle WARNING When working near electric components ensure they cannot activate unexpectedly Remove power or utilize lock out switches WARNING Use extreme caution when working on systems un...

Page 6: ...lbs 3 03 kg Electrical Input Voltage 9 16 V DC 14 V nominal 18 32 V DC 28 V nominal Operating Current Draw Maximum 25 A 15 A Thermal Protection Auto self protect shutdown Auto self protect shutdown Operating Limits Temperature Limitations Maximum Fluid and Ambient Operating Temp 203 F 95 C Minimum Fluid and Ambient Operating Temp 40 F 40 C Maximum Ambient Storage Temp 257 F 125 C Minimum Ambient S...

Page 7: ...ical interface of the pump The product label contains model information and serial number The serial number can be used to trace the component hardware configuration software calibration the date of manufacture and manufacturing data Product labels may not match the example but will have the part number and serial number for the pump ...

Page 8: ... for definition 10 Suffix Denotes model variation 3 Communication L PWM Omit for CAN 7 I O A Address Input C Temperature Input B Address or Temp Input Specified in Calibration P Pressure M PWM High modulated L PWM Low modulated 4 Voltage 12V 12 volt 24V 24 volt 8 OEM Omit if n a WP32 24V CH A Water Pump model 32 24 volt CAN communication Carbon shaft Horizontal orientation addressable via external...

Page 9: ... the pump is not properly installed several failure modes could potentially result Orientation is noted on the component label EMP has found the most robust installations make use of horizontal orientation pumps For new applications EMP is encouraging the use of horizontal orientation pumps EMP pumps must be attached to a vertical or horizontal mount Pumps labeled with orientation up arrows must b...

Page 10: ... well if the shaft is between 10 and 10 of horizontal Pumps must not be mounted more than 15 from the design orientation Weep collection is maximized at 0 from the design orientation Vertical Pump Orientation NOTE Weep collection is maximized at 0 and minimized at 15 orientation Horizontal Pump Orientation ...

Page 11: ...on To properly collect the weepage pump orientation is important Too steep of an angle will not allow the fluid to collect in the weep pocket and evaporate off and the pump may appear to be leaking when in fact it is operating as designed An incorrect mounting angle may also result in too much fluid being retained in the weep pocket resulting in bearing contamination and reduced service life ...

Page 12: ... pump to be air locked The result of air trapped in the pump is loss of prime and no fluid moving resulting in water seal damage or potential system component damage CAUTION EMP warranty does not cover seal damage due to low lubrication Improper installation with localized high spots Deviations from the recommended plumbing must meet the inlet requirements specified in the installation manual Hose...

Page 13: ...ected for the application 5 For best results cooling system materials coolant working life operating temperature range and other system details should be reviewed with coolant manufacturer to ensure the proper coolant selection NOTE Use distilled water to dilute coolant or use pre mix coolant CAUTION Use of Stop Leak or radiator cleaner style system additives is not approved Fill Procedure Caution...

Page 14: ...supported at least every 18 to 20 To avoid possible fire or shock do not pinch any wiring or electrical harnesses Incorporate Drip Loops into wiring designs The pump connectors are environmentally sealed However good wire management can help ensure a good seal over the life of the product Drip loops collect water and shed it away from connector The use of Dielectric Grease such as Dow Corning DC 4...

Page 15: ...ch This line will draw less than 10 mA All switches used on this line can be sized based on this amperage requirement This input should be fused close to the source to protect the vehicle wiring Mating Connectors The mating connectors and pins are available from EMP 6 Pin Connector Deutsch Part Numbers EMP Kit 1370001077 4 Pin Connector Deutsch Part Numbers EMP Kit 1370001078 Description Part Numb...

Page 16: ...ee Mating Connectors Operation CAUTION For pumps ignition enable should not be supplied if the component is dry or if the flow path is restricted or if flow relies on another source such as an engine component which is not running In these cases be sure ignition enable is sourced from a supply that is active only when the flow will not be restricted NOTE In all cases the ignition enable pin pin 4 ...

Page 17: ...p without fluid present If run dry even for a short period the seal will be damaged CAUTION Pump may start running upon connection of power ground and ignition Do not make electrical connections until pump and system are filled with fluid 1 Make sure the weep hole ports are not clogged with debris If weep holes are plugged then open them up Weep Hole Ports NOTE Images do not represent acceptable m...

Page 18: ...formats Verify that the proper component CAN address is being used Suspected water pump seal leak Reference Service Bulletin Electric Water Pump Inspection and Diagnostic Procedures EMP document 9910085143 Water pump seal leak Verify coolant level Verify coolant selection for water seal life OAT phosphate free silicate free coolant is recommended Sample coolant and review coolant maintenance recor...

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