Panasonic 2WAY VRF System U-72ME2U9 U-120ME2U9 U-96ME2U9 U-144ME2U9 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 Control
5. Outdoor Fan Control
6. Outdoor Unit CCU (command controller unit) Control
7. Oil Control
8. 4-Way Valve Adjustment Control
9. Defrost Control
10. Demand Control
11. Backup Operation
12. Other Functions

Section 2: OUTDOOR UNIT REPAIR PROCEDURES
1. Removing Panels
2. Discharging Compressor Oil
3. Backup Operation
4. Recovering Refrigerant
5. Checking for Leakage After Repair
6. Evacuating System
7. Charging Compressor Oil
8. Pumping Out Refrigerant from Outdoot Unit
9. Compressor
10. Replacing Peripheral Parts of Fusible Plug
11. High and Low Pressure Sensors

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. 2WAY VRF Alarm Codes
5. Blinking Inspection Display on the Remote Controller
6. Inspection of Parts
7. Test Pin
8. Thermister Characteristics Curve

Section 6: TEST RUN
1. Preparing for Test Run
2. Test Run Procedure
3. Main Outdoor Unit PCB Setting
4. Function Switches on P. C. Board
5. Auto Address Setting
6. Setting Test Run Remote Controller
7. Caution for Pump Down
8. Self-Diagnosis Function Table and Contents of Alarm Display