Fisher & Paykel MR480, MR720, MR730, MR700 technical manual This page Left Blank

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Ref. 185040646 MR730/720/700/480 Technical Manual ¯ Revision F ¯ Issued March 2001

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Contents D E L S MR730 MR720 MR700 MR480 Auckland, New ZealandRevision F changes Section Description of Change National OfficeContents Dual Probe Temperature Test Performance Check MR480Maintenance Schedule Checklist Power PCB Harness Connection DiagramMaintenance Schedule B1.1 10.1Appendix D MR700 Series General Specifications Models MR730/720/700TOP EOHSET RSDOperating Controls and Modes MR700 Series Humidifiers with Version 1.0 SoftwareStandby Button MR700/720/730 only 2 MR720 Version 2.0, 3.0 Software 1 MR700/MR730 ALL Software VERSIONS, MR720 Version 1.0 onlyAlarms and Indicators Version 1.0 and Version 2.0 Software Version 3.0 SoftwareAudio Alarm Circuit Operation Power Line Interrupt Revisions D/F Pcbs Revision H and J Pcbs Calibration For models with Revision D PCB and earlierPage Performance Check Alarms Check MR700/720/730 Dual Probe Temperature Test Replacing revision F or earlier power PCB MR700/720/730 Servicing InformationReplacing revision F or earlier power PCB MR480 Fault Location SCHEMATICS, Part Lists and Mechanical Drawings Power Board Control Board Component Layout Revision F PCB Page This page Left Blank Circuit Diagrams Revision H and J PCB Control PCB Circuit Diagrams Revision H and J PCB Power PCB Circuit Diagrams Revision F PCB Control PCB Circuit Diagrams Revision F PCB Power PCB LED2,LED4, LED5,LED11 DSP1, DSP2, DSP3LED1, LED3 LED6,LED7 LED8,LED9,LED10VR1 SW5SPK1 VR4Fuse fast acting 2 a 20 × 5 mm for 230 999830009 MR480AGM Exploded Diagrams MR480 10.3 MR730/720/700 Mechanical Parts MR720ASU Exploded Diagrams MR730/720/700 Heaterplate Assembly Parts MR730/720/700/480 Page PCB Identification Diagram Power PCB Harness Connection Diagram Product Change History Date Change First Serial Number Comments AffectedAAA Xxxxx Year Model Code Serial NumberAppendix a OFFError Messages A2.3 Integral DisplayEP3 EP1EP2 EP4First Byte Second ByteThird Byte A5.4 Serial Data Interface Connector B1 Maintenance Schedule Appendix BPhotocopy and File in Maintenance Records Electrical Safety Checks as requiredAppendix C Possible cause Action to takeHigh Temperature C1.5 C1.6LED on Check Voltage Rating Of Unit Cleaning instructions Appendix DSetup Notes Appendix EDynamic Test Sequence MR730/720/700 Dynamic Test Procedure MR480