Toshiba RAS-18UFHP-E3 User manual

SERVICE MANUAL
AIR-CONDITIONER
UNDER CEILING / CONSOLE TYPE
RAS-18UFHP-E3 / RAS-18UAH-E3
RAS-18UFP-E3 / RAS-18UA-E3
RAS-18UFPX3 / RAS-18UAX3
RAS-18UFP-AR3 / RAS-18UA-AR3
RAS-18UFPX3-T2 / RAS-18UAX3-T2
RAS-24UFHP-E3 / RAS-24UAH-E3
RAS-24UFP-E3 / RAS-24UA-E3
RAS-24UFPX3 / RAS-24UAX3
RAS-24UFP-AR3 / RAS-24UA-AR3
RAS-24UFPX3-T / RAS-24UAX3-T
FILE NO. SVM-04032
18 Class
(Heat pump model) 24 Class18 Class (Cooling only model)
June 2004

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FILE NO. SVM-04032
CONTENTS
1. SPECIFICATIONS
1-1 18 Class
1-2 24 Class
2. CONSTRUCTION VIEWS
2-1 Indoor Unit
2-2 Outdoor Unit (RAS-18UAH-E3)
2-3 Outdoor Unit (RAS-24UAH-E3, RAS-24UA-E3, RAS-24UAX3, RAS-24UA-AR3
RAS-24UAX3-T, RAS018UAX3-T2)
3. WIRING DIAGRAM
3-1 RAS-18UFHP-E3/ RAS-18UAH-E3
3-2 RAS-18UFP-E3/ RAS-18UA-E3, RAS-18UFPX3 / RAS-18UAX3
3-3 RAS-18UFP-AR / RAS-18UA-AR
3-4
3-5 RAS-24UFHP-E3/ RAS-24UAH-E3
3-6 RAS-24UFP-E3/ RAS-24UA-E3
RAS-24UFPX3/ RAS-24UAX3
RAS-24UFP-AR3/ RAS-24UA-AR3
RAS-24UFPX3-T / RAS-24UAX3-T
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit
4-2 Outdoor Unit (RAS-18UAH-E3)
4-3 Outdoor Unit (RAS-18UAX3, RAS-18UA-E3)
4-4 Outdoor Unit (RAS-18UA-AR3)
4-5 Outdoor Unit (RAS-18UAX3-T2)
4-6 Outdoor Unit (RAS-24UAH-E3)
4-7 Outdoor Unit (RAS-24UA-E3, RAS-24UAX3, RAS-24UAX3-T)
4-8 Outdoor Unit (RAS-24UA-AR3)
2-3Outdoor Unit (RAS-18UA-E3, RAS-18UAX3, RAS-18UA-AR3)
RAS-18UFPX3-T2 / RAS-18UAX3-T2
5. REFRIGERATION CYCLE DIAGRAM
5-1 RAS-18UFHP-E3/ RAS-18UAH-E3
5-2 RAS-18UFP-E3/ RAS-18UA-E3
RAS-18UFPX3/ RAS-18UAX3
5-3 RAS-18UFP-AR3/ RAS-18UA-AR3
5-4 RAS-18UFPX3-T2 / RAS-18UAX3-T2
5-5
5-6
RAS-24UFHP-E3/ RAS-24UAH-E3
5-7
RAS-24UFP-E3/ RAS-24UA-E3
RAS-24UFPX3/ RAS -24UAX3
RAS-24UFPX3-T / RAS-24UAX3-T
RAS-24UFP-AR3 / RAS-24UA-AR3

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FILE NO. SVM-04032
6. CONTROL BLOCK DIAGRAM
6-1 RAS-18UFHP-E3, RAS-24UFHP-E3
6-2 RAS-18UFP-E3, RAS-18UFPX3, RAS-18UFP-AR3, RAS-18UFPX3-T2
RAS-24UFP-E3, RAS-24UFPX3, RAS-24UFP-AR3, RAS-24UFPX3-T
7. OPERATION DESCRIPTION
7-1 Outline of Air Conditioner Control
7-2 Description of Operation Circuit
7-3 Hi POWER Mode
7-4 High-Temperature Limit Control
7-5 Low-Temperature Limit Control
7-6 Defrosting Operation
7-7 Auto Restart Function
7-8 Filter Check Lamp
8. INSTALLATION PROCEDURE
8-1 Safety Cautions
8-2 Installation Diagram of Indoor and Outdoor Units
8-3 Installation
8-4 Indoor Unit
8-5 Outdoor unit
8-6 How to Set Remote Control Selector Switch
8-7 How to Use Drain Pump Kit of Option
8-8 Others
9. TROUBLESHOOTING CHART
9-1 Troubleshooting Procedure
9-2 Basic Check Items
9-3 Primary Judgement
9-4 Self-Diagnosis by Remote Control (Check Code)
9-5 How to Diagnose Faulty Parts
9-6 Troubleshooting for Indoor Unit
9-7 Troubleshooting for Wiring (Interconnect Cable and Serial Signal Wire)
9-8 Troubleshooting for P.C. Board
9-9 Troubleshooting for Remote Control
10. PARTS REPLACEMENT
10-1 Indoor Unit
10-2 Outdoor Unit (RAS-18UAH-E3)
10-3 Outdoor Unit (RAS-18UA-E3, RAS-18UAX3, RAS-18UA-AR3)
10-4Outdoor Unit (RAS-24UAH-E3, RAS-24UA-E3, RAS-24UAX3, RAS-24UA-AR3,
RAS-24UAX3-T, RAS-18UAX3-T2)

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FILE NO. SVM-04032
11. EXPLODED VIEWS AND PARTS LIST
11-1 Indoor Unit (E-Parts Assy)
11-2 Indoor Unit
11-4Outdoor Unit (RAS-18UA-E3, RAS-18UAX3)
11-6Outdoor Unit (RAS-18UAX3-T2)
11-7Outdoor Unit (RAS-24UAH-E3)
11-8
11-9Outdoor Unit (RAS-24UA-E3, RAS-24UAX3, RAS-24UAX3-T) Outdoor Unit (RAS-24UA-AR3)
11-5Indoor Unit (RAS-18UA-AR3)
11-3Outdoor Unit (RAS-18-UFHP-E3)

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FILE NO. SVM-04032
1. SPECIFICATIONS
1-1
RAS-18UFHP-E3/18UAH-E3 RAS-18UFP-E3/18UA-E3 RAS-18UFP-AR3/18UA-AR3 RAS-18UFPX3-T2/18UAX3-T2
RAS-18UFPX3/18UAX3
Cooling Heating Cooling
Capacity kW 220V 240V 220V 240V 220V 240V 220V 240V 220V
5.00 5.70 5.80 5.20 5.25 5.30 5.35 5.15
Phase 1∅
Power source V 220 – 240 220
Hz 50
Power consumption W 2000 2130 1830 2000 2000 2120 2020 2140 1610
Power factor % 95 87 93 84 96 87 95 86 98
Running current Indoor A 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.45
Outdoor A 9.20 9.85 8.50 9.50 9.10 9.70 9.30 10.00 7.00
Starting current A 40 35
Moisture removal lit/h 2.0
Noise Indoor (H/M/L) dB 43/39/36 46/41/36
Outdoor dB 52 53 53 54 51 52 52 53 56
Refrigerant Name of refrigerant R-22
Rated amount kg 1.29 1.05 1.17 1.47
Refrigerant control Capillary tube
Gas side size mm ∅12.70 Ø 15.88
Connection type Flare connection
Liquid side size mm ∅6.35
Interconnection Connection type Flare connection
pipe Maximum length m 15*1
(One way) 20*2
Maximum height m 8
difference
INDOOR UNIT RAS-18UFHP-E3
RAS-18UFP-E3 RAS-18UFP-AR3 RAS-18UFPX3-T2
RAS-18UFPX3
Width mm 1093
Dimensions Height mm 633
Depth mm 208
Net weight kg 23
Evaporator type Finned tube
Indoor fan type Multi blade fan
High fan m3/h 800 830 800 900
Air volume Medium fan m3/h 680 700 680 730
Low fan m3/h 580 650 580 580
Fan motor output W 50
Air filter Washable -filter
OUTDOOR UNIT RAS-18UAH-E3
RAS-18UA-E3
RAS-18UA-AR3 RAS-18UAX3-T2
RAS-18UAX3
Width mm 830 880
Dimensions Height mm 538 690
Depth mm 300 310
Net weight kg 54 42 49 54
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 2105 2310 2105 2310 1830 2010 2105 2310 3380
Fan motor output W654265
Compressor Model PH250X3-4LM 2JS350D5DA02
Output W
Safety device IOL, Td Sensor IOL
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 –10 ~ 24 15 ~ 43 15 ~ 52 15 ~ 43
MODEL
ITEM
PH210T2-4L7
1500 1700 1500