Danfoss PAHT 2 Operation, Installation, And Maintenance Manual

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Operation guide

PAHT pumps

PAHT 2/3.2/4/6.3/10 and 12.5

Operation, Installation and

Maintenance Manual

180R9287_AQ073186503097en-001004

hpp.danfoss.com

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Table of Contents

Chapters

Troubleshooting

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Page 1 Operation guide PAHT pumps PAHT 2/3.2/4/6.3/10 and 12.5 Operation, Installation and Maintenance Manual 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09 hpp.danfoss.com...
Page 2: Table Of Contents
Local regulations............... 11 Pre mounting checklist, based on Danfoss preferred system designs ....12 Lifting and positioning .
Page 3 Table of Contents .................18 Data sheet PAHT 2-308 pumps (AI106586503085en-000901) ......19 Pump instruction PAHT 2-12.5 (180R9277).
Page 4: Validity
Operating guide PAHT 2-12.5 pumps This manual is valid for PAHT pumps with the following code numbers/serial numbers: Validity Code no. 180B0031 PAHT 2.0 Serial no. XXXXXX08-XXX Code no. 180B0077 PAHT 3.2 Serial no. XXXXXX03-XXX Code no. 180B0030 PAHT 4.0 Serial no.
Page 5: Introduction
It is important that these instructions are The PAHT pumps and pump units are manufac- always available to the personnel concerned. tured by Danfoss A/S, and are sold and marketed by a net of authorized distributors world wide. If the recommendations in the manual are...
Page 6: Manufacturer And Customer Service Address
Operating guide PAHT 2-12.5 pumps Web: hpp.danfoss.com 1.3 Manufacturer and customer service Your local Danfoss pump distributor can be address: found on our homepage. Danfoss A/S High Pressure Pumps 1.4 Country speci c information Nordborgvej 81, 1.4.1 United Kingdom DK-6430 Nordborg...
Page 7: Commissioning And Servicing The Unit
2.4 Adhere to the following important points 2.5 In case of doubt Please contact Danfoss A/S in case of doubt. • Before using the pump/pump unit it is very Contact information are listed in section 1.3, important to read and understand this user Manufacturer and customer service address.
Page 8: Filtration
2, Instruction. 3.9 Air bubbles Large bubbles in a pressurised system can result Danfoss recommends not to build a lter bypass in damage to piping, equipment and the pump. function or use lters with an integrated bypass.
Page 9: Return To Supplier
Operating guide PAHT 2-12.5 pumps Pumps which have a weight above 20 kilos (see Wrong lifting: appendix 1, Data sheet) must be handled by using lifting eyes and slings. When lifting the pump unit, one sling must be attached to the electric motor and one sling around the pump.
Page 10: Installation And Commissioning
Operating guide PAHT 2-12.5 pumps Installation and commissioning 5.1 Important dimensions Physical dimensions and connections of the 5.3 Fluid temperature pump unit are described in appendix 1, Data Before start-up, the uid and pump housing sheet. temperature must be within the speci ed temperature range listed in appendix 1, Data sheet.
Page 11: Pre Mounting Checklist, Based On Danfoss Preferred System Designs
Operating guide PAHT 2-12.5 pumps 5.6 Pre mounting checklist, based on Danfoss preferred system designs Table 1: Check points when assembling and commissioning system Check points Comment OK ? Ensure that the environmental conditions are safe. See Arrival inspection, transportation, handling, lifting and storage, chapter 4.
Page 12: Ensure Free Ow
5.15. • Start high-pressure pump for 2 minutes, to Danfoss o ers commissioning and service at make sure all air is out of the system. system manufacturer’s location. Rate quotes are o ered upon request.
Page 13: Operation Of Motor Pump Unit
2, Instruction. are either damaged or running very close to their design pressure, stop the unit Danfoss o ers service of the pump at the system immediately. Contact the maintenance manufacturer’s location as well as we o er department.
Page 14: Disassembling And Assembling The Pump Unit
4, Parts list. If the pump is going to be returned to Danfoss for repair or a warranty claim, it is important to contact Danfoss in order to receive a return number and a form to ll out with product information.
Page 15: Troubleshooting And Scrapping Criteria
There is excessive mechanical load on the unit is. Please use appendix 5, Trouble shooting shaft coupling and piping. guide as guideline or send the pump to Danfoss headquarter in Denmark for evaluation. For other observations or troubles, please see...
Page 17: Appendices
Operating guide PAHT 2-12.5 pumps Operation guide Appendices PAHT 2-12.5 Installation, Operation and Maintenance Manual © Danfoss | 2023.09 180R9287_AQ073186503097en-001004 | 17 hpp.danfoss.com...
Page 18 Table of Contents Pump instruction PAHT 2-6.3 and PAHT 10-12.5 (180R9277) ......33 Electric motor manual (180R9230) .
Page 19 Data sheet PAHT pumps PAHT 2-6.3/PAHT/10-12.5/PAHT 20-25/ PAHT 50-90 and PAHT 256-308 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09 hpp.danfoss.com...
Page 20: Table Of Contents
PAHT 2-6.3 typical ow curves at max pressure ....... . .
Page 21: Bene Ts
E cient design and all-stainless steel No pulsation dampeners necessary due construction ensure exceptionally long to extremely low-pressure pulsation. lifetime. When Danfoss speci cations Powered by electric motors or combus- are met, service intervals of up to 8,000 tion engines.
Page 22: Technical Data
Operating guide PAHT 2-12.5 pumps Technical data 4.1 PAHT 2-12.5 Pump size 12.5 180B0031 180B0077 180B0030 180B0029 180B0032 180B0033 Code number PAHT AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 Housing material cm³/rev 12.5 Geometric displacement in³/rev...
Page 23: Paht 20-32
Operating guide PAHT 2-12.5 pumps 4.2 PAHT 20-32 Pump size 180B0019 180B0020 180B0021 Code number PAHT AISI 316 AISI 316 AISI 316 Housing material or higher or higher or higher cm³/rev Geometric displacement in³/rev 1.22 1.53 1.95 Pressure Min. outlet...
Page 24: Paht 50-90
Operating guide PAHT 2-12.5 pumps 4.3 PAHT 50-90 Pump size 180B0085 180B0086 180B0087 180B0088 180B0089 Code number PAHT AISI 316 AISI 316 AISI 316 AISI 316 AISI 316 Housing material or higher or higher or higher or higher or higher cm³/rev...
Page 25: Paht 256-308
Operating guide PAHT 2-12.5 pumps 4.4 PAHT 256-308 Pump size 180B1001 180B1002 Code number PAHT AISI 316 AISI 316 Housing material or higher or higher cm³/rev Geometric displacement in³/rev 15.6 18.8 Pressure Min. outlet barg pressure psig Max. outlet barg...
Page 26: Flow
Max pressure (barg / psig) V x n Pressure (barg / psig) Displacement (cm / rev.) (th) 1000 Motor speed (rpm) 5.1 PAHT 2-6.3 typical ow curves at max pressure l/min PAHT 6.3 PAHT 4.0 PAHT 3.2 PAHT 2.0 PAHT 6.3 PAHT 4.0 PAHT 3.2...
Page 27: Paht 10-12.5 Typical Ow Curves At Max Pressure
Operating guide PAHT 2-12.5 pumps 5.2 PAHT 10-12.5 typical ow curves at max pressure l/min PAHT 12.5 PAHT 10.0 PAHT 12.5 PAHT 10.0 © Danfoss | 2023.09 180R9287_AQ073186503097en-001004 | 27...
Page 28: Paht 20-32 Typical Ow Curves At Max Pressure
Operating guide PAHT 2-12.5 pumps 5.3 PAHT 20-32 typical ow curves at max pressure l/min PAHT 32 PAHT 25 PAHT 20 PAHT 32 PAHT 25 PAHT 20 28 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 29: Paht 50-90 Typical Ow Curves At Max Pressure
Operating guide PAHT 2-12.5 pumps 5.4 PAHT 50-90 typical ow curves at max pressure l/min PAHT 90 PAHT 80 PAHT 70 PAHT 63 PAHT 50 PAHT 90 PAHT 80 PAHT 70 PAHT 63 PAHT 50 © Danfoss | 2023.09 180R9287_AQ073186503097en-001004 | 29...
Page 30: Paht 256-308 Typical Ow Curves At Max Pressure
Operating guide PAHT 2-12.5 pumps 5.5 PAHT 256-308 typical ow curves at max pressure l/min PAHT 308 PAHT 256 PAHT 308 PAHT 256 30 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 31: Motor Requirements
To determine the correct motor size, both the power and torque requirement must be veri ed. The mechanical e ciency of the pump, at max pressure, is as follows: PAHT 2, 3.2, 4, 6.3 PAHT 10, 12.5 0.95 PAHT 20, 25, 32, 50, 63, 70, 80, 90 0.95...
Page 32: Installation
Since water has very low viscosity, Danfoss PAHT The noise level is in uenced by: pumps have been designed with very narrow •...
Page 33: Open-System Design
Inlet lter: Install the inlet lter (1) in front of the PAHT speci cations described in item 4, technical pump (2). Please consult the Danfoss lter data. data sheet for guidance on how to select Non-return valve (6): Should be installed after the outlet to the right lter.
Page 34: Closed-System Design
Non-return valve (7): Install the lter (1) in front of the tank (2). Should be installed after the outlet to Please consult the Danfoss lter data sheet prevent pump backspin, which may ruin the pump. for guidance on how to select the right lter.
Page 35: Paht 2-6.3
Operating guide PAHT 2-12.5 pumps Dimensions and 8.1 PAHT 2-6.3 connections © Danfoss | 2023.09 180R9287_AQ073186503097en-001004 | 35...
Page 36: Paht 20-32
Operating guide PAHT 2-12.5 pumps 8.2 PAHT 10-12.5 36 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 37: Paht 50-90
Operating guide PAHT 2-12.5 pumps 8.3 PAHT 20-32 © Danfoss | 2023.09 180R9287_AQ073186503097en-001004 | 37...
Page 39: Paht 256-308
Operating guide PAHT 2-12.5 pumps 8.5 PAHT 256-308 © Danfoss | 2023.09 180R9287_AQ073186503097en-001004 | 39...
Page 40: Service
Operating guide PAHT 2-12.5 pumps Danfoss PAHT pumps are designed for long Other factors that a ect pump performance and Service periods of service-free operation to ensure low lifetime include: maintenance and life cycle costs. Provided that the pump is installed and operated according to •...
Page 42 Operating guide PAHT 2-12.5 pumps 42 | 180R9287_AQ073186503097en-001004 © Danfoss | DCS-SGDPT/SI | 2023.09 AI106586503085en-000902...
Page 43 Instruction PAH, PAHT pumps PAH / PAHT 2-12.5 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09 hpp.danfoss.com...
Page 44 Operating guide PAHT 2-12.5 pumps Contents Table of Contents Identi cation ................34 System design .
Page 45: System Design
Non-return valve (7): Install the inlet lter (1) in front of the tank Should be installed after the outlet to (2). Please consult the Danfoss lter data prevent pump backspin, which may ruin the pump. sheet for guidance on how to select the right lter.
Page 46: Open-System Design
Inlet lter: Install the inlet lter (1) in front of the PAHT and other pump damage, pump inlet pump (2). Please consult the Danfoss lter pressure must be maintained according to data sheet for guidance on how to select speci cations described in item 4, technical data.
Page 47: General Guidelines For Calculation Of Pressure Losses
The pressure loss across the lter should be to settle. monitored. Pump suction line should be placed above the • Please contact the Danfoss Sales Organiza- tank bottom in order to prevent settled particles tion for further lter details. from being led into the pump. Water tank...
Page 48: Building Up The Pump Unit
Operating guide PAHT 2-12.5 pumps We recommend a separation (“wall”) to separate Monitoring the inlet from the outlet end of the tank. It is recommended to continuously monitor the following conditions: • Water level in the tank • Filter contamination •...
Page 49: Protection From Too High Pressures
The valve should be placed as close to the pump to the pump suction line. It shall be connected as possible. directly to the tank. 3.5 Connections PAH / PAHT 2-6.3 PAH / PAHT 10-12.5 M6; Allen key G 1⁄4, NV6 Thread size G 1⁄4 x 11...
Page 50: Initial Start-Up
Operation 5.1 Water quality Water of drinking water quality, con rming to the EEC directive 98/83/EC and without abrasive sediments. Please contact Danfoss sales 5.5 Disconnection organization in case of doubt. If the inlet line is disconnected from the water supply, the pump will be emptied of water through the disconnected inlet line.
Page 51: Open-Ended Systems With Water Supply From Tank
The pump is now protected against internal The pump is now protected against internal corrosion and frost. corrosion and frost. The Danfoss PAHT pumps are designed for long Service In our experience, poor ltration is the number periods of service-free operation to provide one cause of pump damage.
Page 52 Operating guide PAHT 2-12.5 pumps 52 | 180R9287_AQ073186503097en-001004 © Danfoss | DCS-SGDPT/SI | 2023.09 180R9277 | AN103586502885en-000501...
Page 53 Operating guide PAHT 2-12.5 pumps Electric Motors Motor Manual hoyermotors.com M a n u a l 53 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 54 Operating guide PAHT 2-12.5 pumps Motor Manual etc.) using suitable tools, never hit the drive components General with a hammer as this will cause damage to the bearing. This manual concerns the following types of standard The motor are balancing with half key, ensure that the drive induction motors from Hoyer: components are also the same.
Page 55 Operating guide PAHT 2-12.5 pumps Motor Manual connections must be checked and tightened if necessary. The table values are based on an ambient temperature of Bearing size and type are speciﬁed on the rating plate. Motor 25°C. The values must be halved for every 15K increase in types HMA3 and HMC3 is as standard with lifetime greased bearing temperature.
Page 56 Operating guide PAHT 2-12.5 pumps Connection diagram Anschlußdiagram Anslutningdiagramm Forbindelsesdiagram Aansluitdiagram Connection Conexión Collegamento Schemat polacsen 56 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 58 Operating guide PAHT 2-12.5 pumps Hoyer Motors, Motor Manual, April 2019 Head Ofﬁces Branch Ofﬁces Denmark Germany Benelux Over Hadstenvej 42 · DK-8370 Hadsten Landsberger Straße 155 · 80687 München Vasteland 78 · 3011 BN, Rotterdam T +45 86 98 21 11 · F +45 86 98 17 79 T +49 89 700 88 235 ·...
Page 59 Operating guide PAHT 2-12.5 pumps Parts list PAHT pumps PAHT 2-6.3/PAHT 10-12.5/PAHT 20-32/ PAHT 50-90 and PAHT 256-308 © Danfoss | 2023.09 180R9287_AQ073186503097en-001004 | 59 hpp.danfoss.com...
Page 60 Exploded view for PAHT 2 ........
Page 61: Spare Parts List For Paht 2
Operating guide PAHT 2-12.5 pumps Spare parts list for PAHT 2 Pos. Qnt. Designation Material Shaft bush, torpedo Press bush Housing AISI 304 / PEEK AISI 316 Screw AISI 316 Swash plate AISI 431 Screw AISI 304 Washer AISI 304...
Page 62: Exploded View For Paht 2
Operating guide PAHT 2-12.5 pumps Exploded view for PAHT 2 62 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 63 Operating guide PAHT 2-12.5 pumps Spare parts list for PAHT 3.2-6.3 Pos. Qnt. Designation Material Shaft bush, torpedo Press bush Housing AISI 304 / PEEK AISI 316 Screw AISI 316 Swash plate AISI 431 Screw AISI 304 Washer AISI 304...
Page 64: Exploded View For Paht 20-32
Operating guide PAHT 2-12.5 pumps Exploded view for PAHT 3.2-6.3 64 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 65 Operating guide PAHT 2-12.5 pumps Spare parts list for PAHT 10-12.5 Pos. Qty. Designation Material Shaft bush, torpedo Press bush Housing AISI 304 / PEEK AISI 316 Screw AISI 304 Swash plate AISI 431 Screw AISI 304 Washer AISI 304...
Page 66 Operating guide PAHT 2-12.5 pumps Exploded view for PAHT 10-12.5 66 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 67 Operating guide PAHT 2-12.5 pumps Spare parts list for PAHT 20-32 Pos. Qnt. Designation Material Shaft bush, topedo Press bush Housing AISI 316 Pin Ø4 x 14 AISI 304 Screw M8 x 16 AISI 304 O-ring Ø102 x 3 End cover CW...
Page 68 Operating guide PAHT 2-12.5 pumps Exploded view for PAHT 20-32 68 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 69 Operating guide PAHT 2-12.5 pumps Spare parts list for PAHT 50-90 Pos. Qnt. Designation Material Shaft bush, torpedo Press bush Housing AISI 316 Pin ø4 x 14 AISI 304 Screw M8 x 20 AISI 304 O-ring ø135 x 3 End cover CW...
Page 70 Operating guide PAHT 2-12.5 pumps Exploded view for PAHT 50-90 70 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 71: Spare Parts List For Paht 256-308 Serial Number 03 Or Higher
Operating guide PAHT 2-12.5 pumps Spare parts list for PAHT 256-308 Serial number 03 or higher Pos. Qty. Designation Material Designation Material Housing Duplex / PEEK Pin ø6 x 10 AISI 316 Bleeding plug G 1/4" Super duplex O-ring ø11 x 2...
Page 72: Exploded View For Paht 256-308 Serial Number 03 Or Higher
Operating guide PAHT 2-12.5 pumps Exploded view for PAHT 256-308 Serial number 03 or higher 72 | 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09...
Page 73 Operating guide PAHT 2-12.5 pumps Exploded view PAHT 256-308 Serial number up to and including 02 © Danfoss | 2023.09 180R9287_AQ073186503097en-001004 | 73...
Page 74: Tool Set For Paht 256-308
Operating guide PAHT 2-12.5 pumps Tool set for PAHT 256-308 Designation Shaft bush, torpedo Press tool Mounting screw Allen key, 6 mm Adjustable pin wrench Combination wrench, 10 mm Combination wrench, 13 mm Nut, M8 x 6.5 x 13 Guide bolt, M8 x 140 Shaft seal extractor, Ø45...
Page 76 Operating guide PAHT 2-12.5 pumps 76 | 180R9287_AQ073186503097en-001004 AX322445815902en-000202 © Danfoss | DCS-SGDPT/SI | 2023.09...
Page 77: Troubleshooting Guide
Guide line. PAH / PAHT / PAHT C / PAHT G / PAHT 674 / PAH F pumps Trouble shooting guide 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09 hpp.danfoss.com...
Page 78 Operating guide PAHT 2-12.5 pumps Table of Contents Table of Contents Trouble shooting sh bone chart ............61 No ow/no pressure.
Page 79: Trouble Shooting Sh Bone Chart
Operating guide PAHT 2-12.5 pumps Trouble shooting sh bone chart © Danfoss | 2023.09 180R9287_AQ073186503097en-001004 | 79...
Page 80: No Ow/No Pressure
1.4.3 Check that electric motor is sized correctly. 1.4.4 Check that the electrical installation is correctly sized. 1.4.5 Contact Danfoss Sales o ce for guidelines in how to troubleshoot internal pump parts. 1.5.1 Ensure that the air gap between the two To ensure easy mounting of the exible coupling 1.5 Axial load on pump shaft...
Page 81: Reduced Ow/Reduced Pressure
Some lters can create (particles in uid must not exceed 10 m). channelling where particles can pass through Danfoss High Pressure Pumps supplies the lter in tunnels. String wounded lters are lters, please contact the sales o ce.
Page 82: High Torque On Electric Motor
3.2.3 Systems with more than one electric motor torque caused by high outlet pressure. installed: Start motors simultaneously. 3.3.1 Please contact Danfoss High Pressure If the electric motor is too small for the pump, it 3.3 Constant torque Pumps sales o ce.
Page 83: Noise From Pump
4.6.2 If outlet pressure is lower than mentioned Too low pressure also causes insu cient internal in the pump data sheet, please contact lubrication and wear on internal parts. Pump Danfoss High Pressure Pumps technical may eventually be damaged. support. 4.6.3 If outlet pressure has exceeded its Too high outlet pressure may damage the pump.
Page 84: Noise From Installation
Operating guide PAHT 2-12.5 pumps Noise from installation Cause Remedy Comments 5.1.1 Use exible hoses at inlet/outlet connec- Non- exible connections mounted directly on 5.1 Inlet/outlet connections (hoses/pipes) tions. the frame will cause even small pressure pulsations from pump and create vibrations in the system/plant.
Page 85: Typical Signs Of Wear
Operating guide PAHT 2-12.5 pumps Typical signs of wear 6.1 Valve plate Picture 1 A normally worn valve plate has no marks/scratches but only a slightly polished surface. No scratches or marks should be felt. The surface must be at and level.
Page 86: Port Plate
To check this, please see item 6.1, picture 3. If the surface has any marks/scratches, it is worn/damaged and a new one is required. Please contact Danfoss High Pressure Pumps sales o ce for further infor- mation. 86 | 180R9287_AQ073186503097en-001004...
Page 89 Guide line Right and wrong Trouble shooting guide for water hydraulic systems 180R9287_AQ073186503097en-001004 © Danfoss | 2023.09 hpp.danfoss.com...
Page 90 Pump location Operating guide PAHT 2-12.5 pumps Design Pump always to be placed below water Pump location above water surface surface level level will cause damage Choice of material Suction conditions Iron Rubber Copper Plastic Brass Stainless steel Aluminium System to be dimensioned to provide...
Page 91: Installation
Operating guide PAHT 2-12.5 pumps Installation Assembly of coupling Impurities Never use force when assembling the Chips or other impurities in the system The coupling must be easy and simple coupling parts, as this will damage the may cause damage...
Page 92: Starting Procedure
Operating guide PAHT 2-12.5 pumps Wiring Starting procedure Cleaning procedure 1. Fill cold water into the system via the return lter and Level indicator bleed the pump (Power Packs PPH 4 - 6.3 - 10 and 12.5 are self-bleeding) 2. Start and bleed the system -without pressure by opening the bypass valve 3.
Page 93: Troubleshooting
Trouble shooting Open ended water systems Operating guide PAHT 2-12.5 pumps No water supply Is the water supply ok? Is water supplied to the pump? Lower inlet Is water coming Is the water in the tank Is the electric motor of...
Page 94 Operating guide PAHT 2-12.5 pumps 94 | 180R9287_AQ073186503097en-001004 © Danfoss | DCS-SGDPT/SI | 2023.09 180R9042_521B0288_DKCFN.PI.000.C2.02...

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