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Milnor MWR12X5, Schematics, Page: 3 / 41

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Table of Contents

ME7MXR11AE/14264A

Page

Description

Document

1

Component Parts List

W7MXRPL/2014264N

3

Limited Standard Warranty

BMP720097/2008272A

4

How to Get the Necessary Repair Components

BIUUUD19/20081231

5

How to Use Milnor® Electrical Schematic Diagrams

BIUUUK01/20130308

18

Sample Schematic

BMP010012/2001503N

20

3 Phase Motor Connection Diagram

BMP850029/1999362B

21

3P Motor Diagram-Multivolt

W80008/2001253A

22

Board to Board Wiring

W7MXRBW/2008422B

24

Flushing Supplies

W7MXRCF/2006463B

26

Electrical Valves

W7MXREV/2006463B

28

Microprocessor Inputs

W7MXRIA/2013103B

30

Control Circuit Transformer

W7MXRLV/2014264B

32

Start Circuit

/2006463B

34

Variable Speed Controller

W7MXRVPA/2013103B

36

120V/1PH Variable Speed Controller

W7MXRVPS/2014254B

Summary of Contents for MWR12X5

Page 1: ...4A Publishing System TPAS2 Access date 07 29 2014 Document ECNs Latest Schematic Electrical Parts Milnor Washer Extractor MWR12X5 MWR16X5 MWR18X4 EP Express Controls PELLERIN MILNOR CORPORATION POST OFFICE BOX 400 KENNER LOUISIANA 70063 0400 U S A ...

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Page 3: ...8 Sample Schematic BMP010012 2001503N 20 3 Phase Motor Connection Diagram BMP850029 1999362B 21 3P Motor Diagram Multivolt W80008 2001253A 22 Board to Board Wiring W7MXRBW 2008422B 24 Flushing Supplies W7MXRCF 2006463B 26 Electrical Valves W7MXREV 2006463B 28 Microprocessor Inputs W7MXRIA 2013103B 30 Control Circuit Transformer W7MXRLV 2014264B 32 Start Circuit W7MXRS 2006463B 34 Variable Speed Co...

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Page 5: ...CONTROL PANEL EFP1 FUSE HV FEED TRANSFORMER PRIMARY W7MXRLV 09FF003AWV FUSE BUSS STYLE CC TYPE FNQ R 3 AMP 60 CONTROL PANEL EFP2 FUSE HV FEED TRANSFORMER PRIMARY W7MXRLV 09FF003AWV FUSE BUSS STYLE CC TYPE FNQ R 3 AMP 60 CONTROL PANEL EM ELECTROMAGNET AND SOLENOID EMDL SOLENOID DOOR UNLOCK W7MXRS 09K063C24 DOOR LOCK SOLENOID 24V DOOR LATCH EMDR SOLENOID DRAIN VALVE W7MXREV 96D35RAA71 DRAINVAL RT AN...

Page 6: ...MXRIA 09N101 PRESS SW ASSY TRIP 4 85 CONTROL PANEL PRESSURE SW HIGH LEVEL MWR12 16 W7MXRIA 09N100 PRESS SW ASSY TRIP 2 5 CONTROL PANEL SPLL PRESSURE SW LOW LEVEL W7MXRIA 09N100 PRESS SW ASSY TRIP 2 5 CONTROL PANEL VE VALVE ELECTRIC OPERATED VEC1 VALVE FLUSH DETERGENT W7MXRCF MESSAGE MS CHEMICAL FLUSHING VALVE BY OTHERS SUPPLY INJECT VEC2 VALVE FLUSH BLEACH W7MXRCF MESSAGE MS CHEMICAL FLUSHING VALV...

Page 7: ...is warranty For parts which require routine replacement due to normal wear such as gaskets contact points brake and clutch linings belts hoses and similar parts the warranty time period is 90 days We reserve the right to make changes in the design and or construction of our equipment including purchasedcomponents withoutobligationtochangeanyequipmentpreviouslysupplied ANY SALE OR FURNISHING OF ANY...

Page 8: ...ou can also get components from the Milnor factory Tell the supplier the machine model and serial number and this data for each necessary component The component number from this manual The component name if known The necessary quantity The necessary transportation requirements If the component is an electrical component give the schematic number if known If the component is a motor or an electric...

Page 9: ...lies to a subset of machines will normally state in the title which models and or options it covers Compare this with the nameplate on your machine and with your purchase records Each schematic is devoted to circuits with common functions e g microprocessor inputs motor contactors Schematics appear in the manual in alphanumeric order 1 Component Prefix Classifications and Descriptions Component it...

Page 10: ...whose contacts switch immediately when voltage is applied to its coil and revert to normal when the voltage is removed Figure 4 Standard Relay CR Coils and Contacts Legend A Coil B Contacts CP Control Photo Eye Figure 5 Photo eyes sense the presence of an object without direct physical contact Photo eyes consist of a transmitter receiver and output module These components may be housed in one asse...

Page 11: ...c Fuse Figure 6 A fuse is an over current safety device with a circuit opening fusible member which is heated and severed by the passage of over current through it EL Electric Light Figure 6 Indicator lights may be either incandescent or fluorescent EM Electro Magnet Solenoid A device consisting of a core surrounded by a wire coil through which an electric current is passed While current is flowin...

Page 12: ...al energy Figure 8 Transformer EX Figure 9 Electric Motor MR MV Motor Variable Speed Inverter To vary the speed of an AC motor the volts to frequency ratio must be kept constant The motor will overheat if this ratio is not maintained The motor variable speed inverter converts three phase AC to DC The inverter then uses this DC voltage to generate AC at the proper voltage and frequency for the comm...

Page 13: ...y operated e g Start button Master switch etc Figure 11 Cam Switch SC Figure 12 Hand Operated Switch SH SK Switch Key Lock Figure 13 A switch that requires a key to operate This prevents unauthorized personnel from gaining access to certain functions e g the Program menu SL Switch Level Operated Figure 14 A switch connected to a float that causes the switch to open and close as the level changes F...

Page 14: ...ble set points e g Motometers or Combistats TB Terminal Board Figure 18 A strip or block for attaching or terminating wires Figure 17 Temperature Switch ST Figure 18 Terminal Board TB VE Valve Electric Operated Figure 19 A valve operated by an electric coil to control the flow of fluid The fluid can be air water or hydraulic Figure 19 Electrically Operated Valve VE ZF Rectifier Figure 20 A solid s...

Page 15: ...n electronic circuit or piece of equipment Connectors are male or female according to whether they plug into or receive the mating connector 2 Component Terminal Numbering CAUTION 1 Risk of Mis wiring Due to electrical component manufacturing inconsistencies the pin numbers imprinted on components such as connectors and relay bases used on Milnor machines often do not correspond to the pin numbers...

Page 16: ...RIN MILNOR CORPORATION Figure 22 Plug in Relays 11 pin Relay with Grey Base Legend 14 pin Relay with Grey Base older 14 pin Relay with Black Base newer 14 pin Relay with Beige Base rare Left View of relay and base Right Same view show ing pin num bers 12 ...

Page 17: ...ng with the letter M e g CRxxM are not discrete components but are a component of a printed circuit board They are usually not individually replaceable Figure 23 AMP Connector Pin Locations 36 pin Connector 18 pin Connector Legend A View of mating halves of connector B Same view showing assigned pin numbers 13 ...

Page 18: ...agrams PELLERIN MILNOR CORPORATION Figure 24 Molex Connector Pin Locations 15 pin Connector 9 pin Connector 6 pin Connector 4 Pin Connector 2 pin Connector Legend A View of mating halves of connector B Same view showing assigned pin numbers 14 ...

Page 19: ...inal R if normally open terminal L if normally closed L Terminal S if normally open terminal M if normally closed 3 Features of Milnor Electrical Schematic Diagrams Document BMP010012 following this section is a sample schematic based on a schematic diagram for the Milnor gas dryer For the purposes of this exercise the schematic is shown gray and explanations of the items on the schematic are show...

Page 20: ...ain several different types of circuit boards and one or more boards of each type A numerical suffix identifies the board type and a numerical prefix identifies which one of several boards of a given type is being depicted For example the designation 1MTA5 identifies this as the first I O board 8 output 16 input board in the control system As shown on the drawing a pin number follows the board num...

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Page 22: ...tion of the relay on the machine Row and column numbers are shown on the appropriate tag for each relay tray A B Position 2A1M Relay Tray Number Row Column Function M Main Air Any relay that ends with an M is located on an electronic board S 09 S 11 S 11 Normally open contacts Normally closed contacts 7 1 contact 8 2 contact 9 3 contact V Q contact 7 4 contact 8 5 contact 9 6 contact V K contact C...

Page 23: ...signation Mass termination assembly MTA designation on board An MTA is a connection on an electronic circuit board The notes and the tag page locate the appropriate board Page line numbers Major revision letter Page number S Machine type Gas fired dryer 6th generation of controls W Wiring Class of control system Title of this circuit Voltage of this circuit BMP010012 R 19 ...

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