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RAM-70NP4B
Hitachi RAM-70NP4B Manuals
Manuals and User Guides for Hitachi RAM-70NP4B. We have
5
Hitachi RAM-70NP4B manuals available for free PDF download: Service Manual
Hitachi RAM-70NP4B Service Manual (82 pages)
Brand:
Hitachi
| Category:
Air Conditioner
| Size: 29.1 MB
Table of Contents
Table of Contents
1
Service Manual
1
Technical Information
1
Room Air Conditioner
1
Safety During Repair Work
2
Working Standards for Preventing Breakage of Semiconductors
3
Conductive Container
3
Body Earth
3
Grounding of the Working Table
4
Grounding a Solder Iron
4
Caution
5
Specifications
6
Possible Combination to Operate (same Time Operation)
8
Indoor Units Combinations to be Able to Install
10
Features
12
New Refrigerant
12
Refrigerant Piping Materials
13
Servicing Tools
14
Servicing Work (Refrigerant Recharging)
15
Installation
16
Pipe Length
16
Height Difference
16
Connecting the Pipe
17
Condensed Water Disposal of Outdoor Unit
18
When Using and Installing in Cold Areas
18
Connection of the Connecting Cords and Power Cord (Outdoor Unit)
19
Construction and Dimensional Diagram
20
Main Parts Components List
21
Wiring Diagram
23
Circuit Diagram
24
Block Diagram
25
Printed Wiring Board Location Diagram
26
PCB Views
30
Basic Mode
31
Basic Cooling Operation
33
Cooling Sleep Operation
34
Cooling Defrost
34
Dehumidifying
35
Basid Heating Operation
36
Heating Sleep Operation
37
Compressor Rotation Speed
38
Defrost
39
Auto-Fresh Defrost
41
Forced Cooling
42
Processing at Overheat Thermistor (OH) High Temperature
43
Refrigerating Cycle Diagram
45
Description of Main Operation Circuit
46
Inspection When Timer Lamp on Indoor Unit Flashes Once
51
Temperature Detection Circuit
52
Electrical Expansion Valve Circuit Diagram
53
Time Chart
54
Outdoor Fan Motor Control Circuit
55
Procedure for Checking the Outdoor Fan Motor
56
Circuits for Communication between Microcomputers
57
Indoor/Outdoor Communication Circuit
58
Hibernation Mode
59
Troubleshooting
60
Precautions for Checking
60
Self Check
61
Collect Refrigerant Using Gest Switch Operation
62
How to Operate the Outdoor Unit Indipendently
63
Lighting Mode of the Self-Diagnosis Lamp
63
Mountind Location of the Self-Diagnosis Lamp
63
Refrigerant Cycle Check (Gas Leak or Compressor Failure)
65
List of Error Code When Using Self-Diagnosis Memory Function
66
Checking Electrical Parts of Outdoor Unit
68
Dismantle and Assembly Procedure
73
Checking the Refrigerating Cycle
76
Electric Expansion Valve and Pipe Thermistor Position Charts
77
Parts List and Diagram
78
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Hitachi RAM-70NP4B Service Manual (109 pages)
Brand:
Hitachi
| Category:
Air Conditioner
| Size: 78.52 MB
Table of Contents
Table of Contents
1
Specifications
6
How to Use
10
Construction and Dimensional Diagram
44
Main Parts Component
46
Wiring Diagram
47
Circuit Diagram
49
Block Diagram
51
Basic Mode
52
Refrigerating Cycle Diagram
64
Procedure for Disassembly and Reassembly
66
Description of Main Circuit Operation
68
Service Call Q&A
77
Parts List and Diagram
105
Rak-25Rpb Rak-35Rpb
109
Hitachi RAM-70NP4B Service Manual (92 pages)
Brand:
Hitachi
| Category:
Air Conditioner
| Size: 11.39 MB
Table of Contents
Table of Contents
1
Specifications
6
How to Use
9
Construction and Dimensional Diagram
29
Main Parts Component
30
Wiring Diagram
31
Circuit Diagram
33
Block Diagram
35
Basic Mode
36
Refrigerating Cycle Diagram
47
Procedure for Disassembly and Reassembly
49
Description of Main Circuit Operation
51
Service Call Q&A
61
Various Settings
71
Parts List and Diagram
90
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Hitachi RAM-70NP4B Service Manual (90 pages)
Brand:
Hitachi
| Category:
Air Conditioner
| Size: 38.71 MB
Table of Contents
Table of Contents
1
Specifications
6
How to Use
9
Construction and Dimensional Diagram
29
Main Parts Component
30
Wiring Diagram
31
Circuit Diagram
33
Block Diagram
35
Basic Mode
36
Refrigerating Cycle Diagram
48
Procedure for Disassembly and Reassembly
49
Description of Main Circuit Operation
51
Service Call Q&A
60
Various Settings
70
Parts List and Diagram
88
Rak-18Rpc Rak-25Rpc
90
Hitachi RAM-70NP4B Service Manual (86 pages)
Brand:
Hitachi
| Category:
Air Conditioner
| Size: 20.6 MB
Table of Contents
Table of Contents
1
Specifications
6
How to Use
8
Construction and Dimensional Diagram
28
Main Parts Component
29
Wiring Diagram
30
Circuit Diagram
32
Block Diagram
33
Basic Mode
34
Refrigerating Cycle Diagram
46
Procedure for Disassembly and Reassembly
47
Description of Main Circuit Operation
48
Service Call Q&A
56
Parts List and Diagram
84
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