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Panasonic U-8LZ2E8 - User Manual
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REFERENCE NO.
SM830289-01
SER
VICE MANU
AL & TEST RUN SERVICE MANUAL
Order No. SBPAC2011011CE
SM830214-04_2WAY_SYSTEM.indb
1
2014/08/26
17:18:12
Mini VRF SYSTEM
Model No.
Outdoor Units
HP = horsepower
T
ype
Outdoor Unit T
ype
Rated Capacity
8 HP
10 HP
LZ2
mini VRF System
U-8LZ2E8
U-10LZ2E8
R32
SM830289-01_欧州向け
R32
mini
VRF
8,10HP
SM&TRSM.indb
1
SM830289-01_欧州向け
R32
mini
VRF
8,10HP
SM&TRSM.indb
1
2021/05/07
10:08:26
2021/05/07
10:08:26
2
Table of Contents
Main Page
Please Read before Starting
3
Special Precautions
3
When Transporting
4
Removal and Evacuation
9
Charging Procedures
10
Check of Density Limit
13
Precautions for Installation Using New Refrigerant
19
Table of Contents
22
CONTROL FUNCTIONS - Outdoor Unit
25
Introduction
26
Compressor Control
27
Control Functions
28
Output of PCB
33
Outdoor Unit Fan Control
35
Outdoor Unit CCU (Command Controller Unit) Control
38
Oil Control
43
Way Valve Adjustment Control
45
Defrost Control
46
Demand Control
48
Demand Control
50
Other Functions
51
Detailed Settings in EEPROM of Outdoor Unit
53
Outdoor Unit Control PCB
55
Electrical Data
60
CONTROL FUNCTIONS - Indoor Unit
61
Refer to the Service Manual of Indoor Unit
61
Outdoor Unit Repair Procedures
63
Removing Panels
64
Discharging Compressor Oil
65
Recovering Refrigerant
66
Checking for Leakage after Repair
71
Evacuating System
72
Charging Compressor Oil
73
Pumping out Refrigerant from Outdoor Unit
77
Compressor
80
Removing Compressors
84
Outdoor Unit Maintenance Remote Controller
85
Overview
86
Functions
87
Ordinary Display Controls and Functions
88
Monitoring Operations
93
Outdoor Unit Alarm History Monitor
95
Mode Settings
96
Remote Controller Functions
97
Simple Settings Function
98
Detailed Settings Function
105
Remote Controller Servicing Functions
116
Trouble Diagnosis
129
Trouble Diagnosis
130
Contents of Remote Controller Switch Alarm Display
131
Outdoor Unit Control Panel LED Display
132
Mini VRF Alarm Codes
133
Mini VRF Alarm Codes
136
WAY Alarm Codes
139
Inspection and Characteristics of Parts
151
Inspection and Characteristics of Parts
153
Test Pin
154
Symptom: Thermostat in off Continues or Cycles off & on too Frequently
155
Test Run
157
Preparing for Test Run
158
Test Run Procedure
159
Outdoor Unit Control PCB Setting
160
Auto Address Setting
164
Test Run Using the Remote Controller
174
Caution for Pump down
177
Self-Diagnosis Function Table and Contents of Alarm Display
177
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Panasonic U-8LZ2E8 Specifications
General
Brand
Panasonic
Model
U-8LZ2E8
Category
Air Conditioner
Language
English
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