Panasonic Mini VFR System U-36LE1U6 U-52LE1U6 U-36LE1U6E U-52LE1U6E Service Manual


This Service Manual cover:
U-36LE1U6 U-52LE1U6 U-36LE1U6E U-52LE1U6E
S-12MU1U6 S-18MU1U6 S-24MU1U6 S-36MU1U6 S-12MY1U6 S-18MY1U6 S-07MD1U6 S-09MD1U6 S-12MD1U6

To see what contain, please read table of contents:
Section 1: CONTROL FUNCTIONS
1. Introduction
2. Compressor Control
3. Special Controls
4. Other Control
5. Operation of Solenoid Valves
6. Outdoor Unit Electronic Control Valve (Motor Valve) Control [MOV1]
7. Outdoor Fan Control
8. Indoor Unit Electronic Control Valve Control
9. Indoor Special Control
10. Discharge Gas Temperature
11. Current Protection
12. Pressure Sensor Failure
13. 4-Way Valve Failure [L18]
14. Servicing and Maintenance Functions

Section 2: OUTDOOR UNIT REPAIR PROCEDURES
Layout Diagram: Sensors and Solenoid Valves
Layout Diagram: Sensors
1. Removing Panels
2. Discharging Oil in Compressor
3. Recovering Refrigerant
4. Checking for Leakage After Repair
5. Evacuating System
6. Charging Compressor Oil
7. Pumping Out Refrigerant from Outdoor Unit
8. Compressor
9. High Pressure Sensor

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. Mini VRF Alarm Codes
5. Inspection of Parts (Outdoor Unit)
1. Introduction
2. Compressor Control
3. Special Controls
4. Other Control
5. Operation of Solenoid Valves
6. Outdoor Unit Electronic Control Valve (Motor Valve) Control [MOV1]
7. Outdoor Fan Control
8. Indoor Unit Electronic Control Valve Control
9. Indoor Special Control
10. Discharge Gas Temperature
11. Current Protection
12. Pressure Sensor Failure
13. 4-Way Valve Failure [L18]
14. Servicing and Maintenance Functions