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User Manuals: Toshiba RAS-4M27S3AV-E Room Inverter Heat
Manuals and User Guides for Toshiba RAS-4M27S3AV-E Room Inverter Heat. We have
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Toshiba RAS-4M27S3AV-E Room Inverter Heat manual available for free PDF download: Service Manual
Toshiba RAS-4M27S3AV-E Service Manual (113 pages)
Brand:
Toshiba
| Category:
Air Conditioner
| Size: 7.22 MB
Table of Contents
Service Manual
1
Table of Contents
2
Safety Precautions
3
Specifications
5
DRED Installation Position
6
Outline of DRED Wiring
6
Summaries of Product Characteristics
6
Specifications of Electrical Parts
7
Capacity Variation Ratio According to Outdoor Temperature
26
Capacity Variation Ratio According to Pipe Length
26
Operation Characteristic Curve
26
Copper Pipes
27
Refrigerant - Safety During Installation/Servicing
27
Refrigerant Piping Installation
27
Refrigerant R410A
27
Flare Processing Procedures and Precautions
28
Joints
28
Processing of Piping Materials
28
Thicknesses of Annealed Copper Pipes
28
Flare Connecting Procedures and Precautions
30
Tightening Torque of Flare
30
Required Tools
31
Configuration of Refrigerant Charging
32
Recharging of Refrigerant
32
Brazing of Pipes
33
Flux
33
Materials for Brazing
33
Brazing
34
Construction Views
35
Outdoor Unit View
35
Wiring Diagram
36
Wiring Procedure
39
Specifications of Electrical Parts
40
Refrigerant Cycle Diagram
41
Operation Data
42
Control Block Diagram
48
Contents of Operation Command Signal
50
Operation Description
50
Outline of Air Conditioner Control
50
Role of Indoor Unit Controller
50
Basic Operation
52
Operation Control
52
Cooling/Heating Operation
53
Operating Mode Selection When Performing 2-Room Operation
53
Outdoor Fan Motor Control
54
Capacity Control
55
Current Release Control
55
Compressor Protective Control
56
Defrost Control (Only in Heating Operation)
56
Winding/Coil Heating Control
56
Discharge Temperature Control
57
High-Pressure Switch/Compressor Case Thermostat Control
57
Pulse Motor Valve (PMV) Control
57
Intermittent Operation Control for Indoor Fans of the Indoor Unit at Thermo-Off Side in Heating Operation
58
Various Setting on Outdoor Unit (Power Save, Cooling-Only, Etc.)
58
Installation Procedure
59
Installation/Servicing Tools
59
Optional Installation Parts (Local Supply)
60
Outdoor Unit Installation Place
60
Refrigerant Piping
60
Fixing Bolt Arrangement of Outdoor Unit
61
Necessary Space for Installation
61
How to Remove the Front Panel
62
Tightening Connection
62
Evacuating/Air Purge
63
Flaring
63
Refrigerant Piping Connection
63
Use a Vacuum Pump
63
Electrical Work
64
Packed Valve Handling Precautions
64
Stripping Length Power Cord and Connecting Cable
64
Wiring Connection
64
Check and Test Operation
65
Miswiring (Mispiping) Check
65
Gas Leak Test
67
Remote Control A-B Selection
67
Setting the Auto Restart
67
Test Operation
67
Discharging Method
68
How to Diagnose the Trouble
68
Confirmation of Power Supply
69
First Confirmation
69
Operation Which Is Not a Trouble
69
Judgment by Flashing LED of Indoor Unit
70
Primary Judgment
70
How to Use Remote Controller in Service Mode
71
Self-Diagnosis by Remote Controller (Check Code)
71
Caution at Servicing
72
Judgment of Trouble by Symptom
78
Outdoor Unit Does Not Operate
78
Outdoor Unit Stops in a Little While after Operation Started
78
Wiring Failure (Interconnecting and Serial Signal)
78
Service Support Function (LED Display, Switch Operation)
79
Trouble Diagnosis by Outdoor LED
80
Diagnosis When Compressor Does Not Work
89
Diagnosis When Cooling/Heating Is Poor
89
Troubleshooting Procedure
89
Troubleshooting for Demand Unit
90
Inspection of the Main Parts
91
Sensor Characteristic Table
91
How to Simply Judge Whether Outdoor Fan Motor Is Good or Bad
92
How to Replace the Main Parts
95
Outdoor Unit Replacement
95
Replacement of Reactor
101
Removal of Defective Compressor
103
Fan Guard Detachment and Attachment
104
Fin Guard Detachment and Attachment
104
PMV Detachment and Attachment
105
Exploded Views and Parts List
110
Inverter Assembly
111
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