Hitachi RAF-50QH8 Manuals

Manuals and User Guides for Hitachi RAF-50QH8. We have 2 Hitachi RAF-50QH8 manuals available for free PDF download: Instruction Manual, Service Manual

Hitachi RAF-50QH8 Instruction Manual (180 pages)

split type

Brand: Hitachi | Category: Air Conditioner | Size: 4.06 MB

Safety Precaution
2
Precautions During Installation
2
Multi-Air Conditioner
4
Names and Functions of each Part
4
Remote Controller
6
Automatic Operation
7
Various Functions
7
Heating Operation
8
Dehumidifying Operation
9
Cooling Operation
10
Fan Operation
11
How to Cancel Reservation
12
How to Set the Timer
12
To Set the Sleep Timer
14
Circuit Breaker
16
Maintenance
17
Air Filter
17
Cleaning of Front Panel
18
Regular Inspection
21
After Sales Service and Warranty
21
Verschiedene Funktionen
29
Einstellen der Zeitschaltuhr
34
Wartung
39
Fonctions Diverses
51
Fonctionnement Automatique
51
Entretien
61
Filtre a Air
61
Service Après-Vente Et Garantie
65
Unità Interna
67
Nomi E Funzioni Delle Parti
70
Funzioni Varie
73
Funzionamento Automatico
73
Manutenzione
83
Filtro Aria
83
Pulizia del Pannello Anteriore
84
Unidad Interior
89
Precauciones de Seguridad
90
Nombres y Funciones de Los Componentes
94
Mantenimiento
105
Filtro de Aire
105
Limpieza del Panel Frontal
106
Unidade Interior
111
Medidas de Precaução
112
Unidade de Controlo Remoto
116
Limpeza Do Painel Frontal
128
Режим Нагрева
162
Старт Стоп
162
Воздушный Фильтр
171

Hitachi RAF-50QH8 Service Manual (69 pages)

INDOOR UNIT

Brand: Hitachi | Category: Air Conditioner | Size: 16.71 MB

Contents
1
Specifications
1
Service Manual
1
Technical Information
1
Room Air Conditioner
1
Safety During Repair Work
2
Working Standard for Preventing Breakage of Semiconductors
3
Object Parts
3
Items to be Observed in Handling
3
Grounding of the Working Table
4
Grounding a Solder Iron
4
How to Use
7
Safety Precaution
7
Precautions During Installation
7
Precautions During Operation
7
Names and Functions of each Part
9
Indoor Unit
9
Model Name and Dimensions
9
Temporary Switch
10
Indoor Unit Indicators
10
How to Open or Close the Front Pane L
10
Remote Controller
11
Precautions for Use
11
Various Functions
12
Automatic Operation
12
Auto Restart Control
12
Heating Operation
13
Dehumidifying Operation
14
Dehumidifying Function
14
Cooling Operation
15
Fan Operation
16
Extended Airflow
16
Fan Speed
16
How to Set the Timer
17
How to Cancel Reservation
17
Time
17
Off-Timer
17
How to Set the Sleep Timer
19
Adjusting the Air Deflectors
20
How to Change the Batteries in the Remote Controller
21
Circuit Breaker
21
How to Use the Air Conditioner Effectively
21
Maintenance
22
Air Filter
22
How to Install and Remove the Front Panel
23
Cleaning of Front Panel
23
Maintenance at Beginning of Long off Period
23
Air Cleaning Filters
24
Information
25
Capabilities
25
Timer Programming/Sleep Timer Operation
25
Regular Inspection
26
Construction and Dimensional Diagram
28
Main Parts Component
29
Thermostat
29
Fan Motor
29
Wiring Diagram
30
Wiring Diagram of the Printed Wiring Board
31
Block Diagram
33
Basic Mode
34
Combination of Operations
34
Fan Speed by Mode
35
Room Temperature Shift Value
35
Basic Cooling Operation
36
Cooling Sleep Operation
37
Cooling Defrost
37
Dehumidifying
38
Dehumidifying Sleep Operation
38
Heating Basic Operation
39
Heating Sleep Operation
40
Refrigerating Cycle Diagram
41
Cooling Cycle
41
Heating Cycle
41
Disassembly & Assembly
42
Remove the Front Cover
43
Install the Front Cover
43
Indicating P.W.B.
44
Electrical Parts Case
44
Discharge Frame
45
Discharge Frame Auto Sweep Motor
45
Fan Motor and Tangential Air Flow Fan
46
Description of Main Circuit Operation
47
Power Circuit
47
Reset Circuit
48
Timing Chart
48
Room Temperature Thermistor Circuit
49
Heat Exchanger Thermistor Circuit
49
Humidity Sensor Circuit
49
Fan Motor Drive Circuit
50
Buzzer Circuit
51
Receiver Circuit
51
Initial Setting Circuit
52
Temporary Switch Circuit
52
Service Call Q&A
53
Cooling Mode
53
Dehumidifying Mode
53
Heating Mode
53
Auto Fresh Defrosting
54
Auto Operation
54
Nice Temperature Reservation
54
At Starting Operation
55
Others
55
Caution for ICP
57
Troubleshooting When the Timer Lamp Blinks
58
Checking Indoor/Outdoor Unit Electrical Parts and Refrigerating Cycle
59
Checking the Indoor Unit Electrical Parts
60
Indoor Fan Speed Does Not Change
61
Air Deflector Does Not Move
61
All Systems Stop from Several Seconds
61
Checking the Main P.W.B.
62
Self Diagnosis Indicating Function
63
How to Count the Number of Blinking of the Lamp
63
Self Diagnosis Memory Function
64
Parts List and Diagram
65

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