Panasonic U-8ME1E81 User Manual

REFERENCE NO.
85464849304005
SERVICE MANUAL
SM830204-05
2WAYVRF SYSTEM
Order No.SBPAC1307002CE
Outdoor Unit
Model No.
ME1
8HP
U-8ME1E81
10HP
U-10ME1E81
16HP
U-16ME1E81
18HP
U-18ME1E81
20HP
U-20ME1E81
12HP
U-12ME1E81
14HP
U-14ME1E81
Class
Model Name
Class
73 106 140 224 280
E1
High Static Pressure
Ducted
Indoor Unit
Class 15 22
U1
4-Way Cassette
S-22MU1E5
S-22MU1E51
L1
2-Way Cassette
S-22ML1E5
D1
1-Way Cassette
F1
Low Silhouette Ducted
S-22MF1E5
T1
M1
Ceiling
K1
Wall Mounted
S-22MK1E5
R1
Concealed Floor
Standing
S-22MR1E5
P1
Floor Standing
S-22MP1E5
Y1
4-Way Cassette 60×60
S-22MY1E5
F2
Low Silhouette Ducted
S-22MF2E5
Slim Low Static Ducted
S-22MM1E5S-15MM1E5
28
S-28MU1E5
S-28MU1E51
S-28ML1E5
S-28MF1E5
S-28MD1E5
S-28MK1E5
S-28MR1E5
S-28MP1E5
S-28MY1E5
S-28MF2E5
S-28MM1E5
36
S-36MU1E5
S-36MU1E51
S-36ML1E5
S-36MF1E5
S-36MD1E5
S-36MK1E5
S-36MR1E5
S-36MP1E5
S-36MY1E5
S-36MF2E5
S-36MM1E5
S-36MT1E5
45
S-45MU1E5
S-45MU1E51
S-45ML1E5
S-45MF1E5
S-45MD1E5
S-45MK1E5
S-45MR1E5
S-45MP1E5
S-45MY1E5
S-45MF2E5
S-45MM1E5
S-45MT1E5
56
S-56MU1E5
S-56MU1E51
S-56ML1E5
S-56MF1E5
S-56MD1E5
S-56MK1E5
S-56MR1E5
S-56MP1E5
S-73ME1E5 S-106ME1E5 S-140ME1E5
S-224ME1E5
S-224ME1E5A
S-280ME1E5
S-56MY1E5
S-56MF2E5
S-56MM1E5
S-56MT1E5
60
S-60MU1E51
S-60MF2E5
73
S-73MU1E5
S-73MU1E51
S-73ML1E5
S-73MF1E5
S-73MD1E5
S-73MK1E5
S-71MR1E5
S-71MP1E5
S-73MF2E5
S-73MT1E5
90
S-90MU1E51
S-90MF1E5
S-90MF2E5
106
S-106MU1E5
S-106MU1E51
S-106MF1E5
S-106MK1E5
S-106MF2E5
S-106MT1E5
140
S-140MU1E5
S-140MU1E51
S-140MF1E5
S-140MF2E5
S-140MT1E5
160
S-160MU1E5
S-160MU1E51
S-160MF1E5
K2
Wall Mounted
S-22MK2E5 S-28MK2E5 S-36MK2E5
Y2
4-Way Cassette 60×60
S-22MY2E5 S-28MY2E5 S-36MY2E5 S-45MY2E5 S-56MY2E5
S-160MF2E5
SM830204-05_2WAY SYS_new.indb 1 15/01/05 11:56:42

Panasonic U-8ME1E81 Specifications

General

Category	Temperature Controller
Display Type	LED
Control Output	Relay
Input Type	Thermocouple, RTD
Power Supply	100 to 240 VAC

Summary

Safety, Installation, and Handling

Initial Safety Guidelines

Emphasizes critical safety steps for installation, wiring, and general operation, including warnings and cautions.

Refrigerant and Tubing Precautions

Provides essential warnings and guidelines for connecting refrigerant tubing and handling R410A refrigerant safely.

Servicing and Operational Safety

Outdoor Unit Control Functions

Compressor Operation and Control

Defrost and Current Limitation

Alarm and Backup System Operations

Covers system alarms, sensor failures, and automatic/manual backup operation procedures for unit reliability.

Outdoor Unit Repair Procedures

Refrigerant Recovery and System Evacuation

Outlines step-by-step processes for recovering refrigerant and evacuating the system using specialized equipment.

Compressor Replacement and Servicing

Covers compressor diagnosis, replacement procedures, and oil/refrigerant charging for system integrity.

Remote Controller Operations

Simple Settings Configuration

Detailed Settings Configuration

Servicing and Monitoring Functions

Trouble Diagnosis and Alarms

Remote Controller Alarm Indicators

Outdoor Unit LED Status Indicators

Comprehensive 2WAY Alarm Codes

Provides a list of alarm codes, meanings, probable causes, and suggested corrections for the 2WAY system.