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Toshiba RAS-18UAX User Manual
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SER
VICE MANU
AL
AIR-CONDITIONER
UNDER CEILING / CONSOLE
TYPE
RAS-18UFHP-E / RAS-18U
AH-E
RAS-18UFP-E / RAS-18U
A-E
RAS-18UFPX / RAS-18U
AX
RAS-18UFP-AR / RAS-18U
A-AR
RAS-18UFPX-T2 / RAS-18U
AX-T2
RAS-24UFHP-E / RAS-24U
AH-E
RAS-24UFP-E / RAS-24U
A-E
RAS-24UFPX / RAS-24U
AX
RAS-24UFP-AR / RAS-24U
A-AR
RAS-24UFPX-T / RAS-24U
AX-T
FILE NO. SVM-02008
24 Class
Mar
., 2002
18 Class
2
Table of Contents
Default Chapter
1
Service Manual
1
Table of Contents
2
1 Specifications
4
2 Construction Views
7
Indoor Unit
7
Outdoor Unit (RAS-18UAH-E, RAS-18UA-E, RAS-18UAX, RAS-18UA-AR)
8
Outdoor Unit
9
3 Wiring Diagram
10
Ras-18Ufhp-E / Ras-18Uah-E
10
Fan Motor
10
Ras-18Ufp-E / Ras-18Ua-Eras-18Ufpx / Ras-18Uax
11
Ras-18Ufp-Ar / Ras-18Ua-Ar
12
Ras-24Ufhp-E / Ras-24Uah-E
13
Ras-18Ufpx-T2 / Ras-18Uax-T2
14
Ras-24Ufp-E / Ras-24Ua-E
14
Ras-24Ufpx / Ras-24Uax
14
Ras-24Ufp-Ar / Ras-24Ua-Ar
14
Ras-24Ufpx-T / Ras-24Uax-T
14
4 Specification of Electrical Parts
15
Indoor Unit
15
Outdoor Unit (RAS-18UAH-E)
15
Outdoor Unit (RAS-18UA-E, RAS-18UAX)
16
Outdoor Unit (RAS-18UA-AR)
16
Outdoor Unit (RAS-18UAX-T2)
16
Outdoor Unit (RAS-24UAH-E)
17
Outdoor Unit (RAS-24UA-E, RAS-24UAX, RAS-24UA-AR)
17
Outdoor Unit (RAS-24UAX-T)
18
5 Refrigeration Cycle Diagram
19
Ras-18Ufhp-E / Ras-18Uah-E
19
Ras-18Ufp-E / Ras-18Ua-Eras-18Ufpx / Ras-18Uax
20
Ras-18Ufp-Ar / Ras-18Ua-Ar
21
Ras-18Ufpx-T2 / Ras-18Uax-T2
22
Ras-24Ufhp-E / Ras-24Uah-E
23
Ras-24Ufp-E / Ras-24Ua-Eras-24Ufpx / Ras-24Uax Ras-24Ufp-Ar / Ras-24Ua-Ar Ras-24Ufpx-T / Ras-24Uax-T
24
6 Control Block Diagram
25
Ras-18Ufhp-E, Ras-24Ufhp-E
25
Ras-18Ufp-E, Ras-18Ufpx, Ras-18Ufp-Ar, Ras-18Ufpx-T2
26
Ras-24Ufp-E, Ras-24Ufpx, Ras-24Ufp-Ar, Ras-24Ufpx-T
26
7 Operation Description
27
Outline of Air Conditioner Control
27
Description of Operation Circuit
28
Cooling Operation
30
Fan Only Operation
30
Hi POWER Mode
31
High-Temperature Limit Control
31
Low-Temperature Limit Control
31
Defrosting Operation
31
Auto Restart Function
32
Filter Check Lamp
33
8 Installation Procedure
34
Safety Cautions
34
Installation Diagram of Indoor and Outdoor Units
36
Installation
37
Indoor Unit
39
Outdoor Unit
46
How to Set Remote Control Selector Switch
49
How to Use Drain Pump Kit of Option
50
Others
50
9 Troubleshooting Chart
51
Troubleshooting Procedure
51
Basic Check Items
51
Primary Judgement
52
Self-Diagnosis by Remote Control (Check Code)
53
How to Diagnose Faulty Parts
55
Troubleshooting for Indoor Unit
59
Troubleshooting for Wiring (Interconnect Cable and Serial Signal Wire)
64
Troubleshooting for P.C. Board
65
Troubleshooting for Remote Control
69
10 Parts Replacement
70
Indoor Unit
70
Outdoor Unit
75
Ras-24Uax-T)
76
11 Exploded Views and Parts List
77
Indoor Unit (E-Parts Assy)
77
Indoor Unit (RAS-18UFHP-E, RAS18UFP-E, RAS18UFPX, RAS-18UFP-AR)
78
Indoor Unit (RAS-18UFPX-T2, RAS-24UFHP-E, RAS24UFP-E, RAS24UFPX, RAS-24UFP-AR, RAS-24UFPX-T)
79
Outdoor Unit (RAS-18UAH-E)
80
Outdoor Unit (RAS-18UA-E, RAS-18UAX)
81
Outdoor Unit (RAS-18UAX-T2, RAS-24UA-E, RAS-24UAX, RAS-24UA-AR, RAS-24UAX-T)
82
Outdoor Unit (RAS-24UAH-E)
83
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Toshiba RAS-18UAX Specifications
General
Brand
Toshiba
Model
RAS-18UAX
Category
Air Conditioner
Language
English
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