Panasonic 3Way VRF System U-72MF1U9 U-96MF1U9 U-72MF1U9E U-96MF1U9E Service Manual


Accurate, clear and concise text, combined with detailed illustrations, instruction and diagrams, guide you through procedure of repair, remediate, maintenance and adjustments your Air Conditioner.
The information contained in this repair manual is necessary for the repair, but also prevention, resulting in a longer life of your appliance.
Format of the manual: PDF, makes it easy to navigate, instant download and print. English language.
To see what contain, please read table of contents:

Section 1: CONTROL FUNCTIONS
1. Introduction
2. Selecting Outdoor Unit for Operation
3. Compressor Control
4. Special Controls
5. Other Controls
6. Operation of Solenoid Valves
7. Outdoor Unit Electronic Control Valves [MOV1, MOV2, MOV4]
8. Outdoor Fan Control
9. Demand Control
10. Indoor Unit Control of the Electronic Control Valve
11. Solenoid Valve Kit Control
12. Indoor Special Control
13. Discharge Temperature
14. Current Protection
15. Low Oil Alarm
16. Pressure Sensor Failure
17. Backup Operation
18. Service Maintenance Functions
19. Other Functions

Section 2: OUTDOOR UNIT REPAIR PROCEDURES
1. Removing Panels
2. Removing Electrical Component Box and Duct
3. Discharging Compressor Oil
4. Backup Operation
5. Recovering Refrigerant
6. Checking for Leakage After Repair
7. Evacuating System
8. Charging Compressor Oil
9. Pumping Out Refrigerant from Outdoor Unit
10. Compressor
11. High and Low Pressure Sensors
12. Replacing 4-way valve

Section 3: OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER
1. Overview
2. Functions
3. Ordinary Display Controls and Functions
4. Monitoring Operations
5. Outdoor Unit Alarm History Monitor
6. Mode Settings

Section 4: REMOTE CONTROLLER FUNCTIONS
1. Simple Settings Function
2. Detailed Settings Function
3. Remote Controller Servicing Functions

Section 5: TROUBLE DIAGNOSIS
1. Contents of Remote Controller Switch Alarm Display
2. Outdoor Unit Control Panel LED Display
3. Remote Controller Servicing Functions
4. 3-WAY VRF Alarm Codes
5. Blinking Inspection Display on the Remote Controller
6. Inspection of Parts
7. Test Pin
8. Thermister Characteristics Curve