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Fisher & Paykel MR810 4MAINTENANCE & CLEANING PROCEDURES, 4.1CLEANING, 4.2ANNUAL MAINTENANCE, ANNUALLY, 4.2.1VISUAL CHECK, 4.2.2ELECTRICAL SAFETY CHECK

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4MAINTENANCE & CLEANING PROCEDURES

4.1CLEANING

The following is the recommended cleaning procedure for the MR810 Respiratory Humidifier. Solutions listed below have been tested to ensure that no damage will occur with the metal and plastic components of the humidifier. Cleaning should be performed as required.

	1.	Disconnect the humidifier from the electrical outlet.
	2.	Clean the humidifier with one of the following using a damp cloth:
		•	Normal dishwashing detergent
		•	Isopropyl alcohol
		•	Isopropyl alcohol	4
	3.	Wipe the humidifier clear of any cleaning residues before use.		4
	3.

Caution

DO NOT immerse the humidifier in any liquid. Using other solutions may damage the humidifier.

4.2ANNUAL MAINTENANCE

To ensure that the humidifier is safe and effective in operation the following maintenance shall be carried out ANNUALLY.

4.2.1VISUAL CHECK

Check the humidifier for physical damage as follows:

1.Check the power cable for damage, replace if necessary (§ 6.6).

2.Check the heater-wire adaptor for kinks, abrasions or damage to the connector. Replace if necessary (§ 6.6).

3.Check the heater plate for deep scratches, replace if necessary (§ 6.5.3).

4.Check the humidifier case for cracks and ensure case screws are fitted and correctly tightened (the three screws under the humidifier). Check the finger guard is fitted and prevents contact with the heater plate during normal operation.

4.2.2ELECTRICAL SAFETY CHECK

Check that the humidifier is electrically safe to use. Refer to § 7.

4.2.3PERFORMANCE TEST PROCEDURE

Carry out the performance test procedure described in § 8.

MR810 Technical Manual Revision C REF 185042601

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Contents

Page International United States Australia China Guangzhou Representative Office CONTENTS ELECTRICAL SAFETY TESTS ERFORMANCE EST ROCEDURE APPENDIX A: MAINTENANCE CHECKLIST 1 GENERAL INFORMATION 1.1INTRODUCTION 1.2GLOSSARY OF TERMS 1.3DEFINITIONS 1.4 SYMBOLS 1.5TECHNICAL MANUAL REVISION HISTORY 2SPECIFICATIONS MECHANICAL ELECTRICAL PERFORMANCE Temperature 2.4TRANSPORT AND STORAGE 2.5STANDARDS 3OPERATION AND CONTROLS 3.1 APPLICATION 3.2WARNINGS AND CAUTIONS 3.3SETUP 3.4CONTROLS AND INDICATORS 3.4.3"SEE MANUAL" INDICATOR Hardware Fault Microprocessor Fault 3.4.4 HEATER-WIRE INDICATOR 3.4.5AMBIENT TEMPERATURE SENSOR 3.5OPERATION 3.6DIAGNOSTIC PORT 4MAINTENANCE & CLEANING PROCEDURES 4.1CLEANING 4.2ANNUAL MAINTENANCE Page 5.2SEE MANUAL CODES See Fault Description Section Setting 6SERVICING PROCEDURES 6.1PRECAUTIONS 6.2OPENING THE CASE AND REMOVING THE PCB Figure 6.1: Removing the case bottom 6.2.2 REMOVING THE PCB 6.2.2 R PCB Figure 6.2: Removing the PCB 6.3REPLACING FUSES Model Supply Voltage Fuse Type Part Number 6.4REPLACING THE PCB PCB 6.5SERVICING THE HEATER PLATE Exploded Screw Application Driver Heater Plate Resistance Page Element 6.6REPLACING THE POWER CABLE OR HEATER-WIRE ADAPTOR Supply Power Cable Phase Neutral Page 6.7REPLACING THE PUSH BUTTONS AND THE LED LIGHT PIPE 6.8ASSEMBLING THE PCB AND CASE 6.9COMPLETING THE SERVICE 7ELECTRICAL SAFETY TESTS 7.1PROTECTIVE EARTH RESISTANCE 7.2EARTH LEAKAGE CURRENT 7.3INSULATION RESISTANCE 8PERFORMANCE TEST PROCEDURE 8.1INTRODUCTION 8.2FUNCTIONAL CHECK 8.3HEATER-WIRE MODE PERFORMANCE CHECK 8.4NON HEATER-WIRE MODE PERFORMANCE CHECK Appendix A: MAINTENANCE CHECKLIST Appendix A: M Pass/Fail Visual Check (refer § 4.1) Electrical Safety Check (refer § 7) Performance Check (refer § 8) Appendix B: PRODUCT HISTORY Date Change First Serial # Description of Change Appendix C: D Description (Figure 8.1) C.2 MR810 EXPLODED DIAGRAM C.3 HEATER PLATE PARTS LIST (Figure 8.2) C.4 HEATER PLATE EXPLODED DIAGRAM Appendix D: ELECTROMAGNETIC COMPATIBILITY Appendix D: E D.1 COMPLIANCE AND WARNINGS D.2 ELECTROMAGNETIC EMISSIONS D.3 ELECTROMAGNETIC IMMUNITY Recommended separation distance Recommended separation distances between portable and mobile RF communications equipment and the MR810 Rated maximum output Separation distance according to the frequency of transmitter (m)