Hitachi Summit RAS-18YH5 Manuals

Manuals and User Guides for Hitachi Summit RAS-18YH5. We have 2 Hitachi Summit RAS-18YH5 manuals available for free PDF download: Service Manual, Information Booklet & User Manual

Hitachi Summit RAS-18YH5 Service Manual (97 pages)

Brand: Hitachi | Category: Air Conditioner | Size: 14.22 MB

Table of Contents
1
Room Air Conditioner
1
Service Manual
1
Technical Information
1
How to Use
1
- Working Standards for Preventing Breakage of Semiconductors
  3
- Items to be Observed in Handling
  3
- Conductive Container View
  3
- Body Earth Diagram
  3
- Grounding a Solder Iron
  4
- Safety Precautions
  7
- Dimensions
  8
- Product View
  8
- Names and Functions of each Part
  8
- Auto Restart Control
  9
- Automatic Operation
  9
- Remote Controller
  9
- Heating Operation
  10
- Dehumidifying Operation
  10
- Defrosting
  10
- Cooling Operation
  11
- Fan Operation
  11
- Fan Speed (Auto)
  11
Construction and Dimensional Diagram
11
Main Parts Component
13
- Maintenance
  14
- Air Filter
  14
- Cleaning the Front Panel
  14
- Maintenance at Beginning of Long off Period
  14
- Regular Inspection
  15
- Capabilities
  15
- Various Functions
  15
- Timer Programming/Sleep Timer Operation
  15
Wiring Diagram
15
Wiring Diagram of the Printed Wiring Board
16
- Construction and Dimensional Diagram
  17
- Main Parts Components
  19
Ras-18Yh5
19
Rac-18Yh5
19
Wiring Diagram
21
Block Diagram
21
Wiring Diagram of the Printed Wiring Board
22
Basic Mode
23
- Block Diagram
  25
- Mode Data File
  27
- Basic Cooling Operation
  28
- Dehumidifying Sleep Operation Diagram
  29
- Dehumidifying Operation Diagram
  29
- Cooling Defrost Diagram
  29
- Cooling Sleep Operation Diagram
  29
- Basic Heating Operation Diagram
  30
- Reversing Valve Defrosting
  31
- Heating Sleep Operation
  31
- Setting Defrosting Inhibit Period
  31
Refrigerating Cycle Diagram
32
Description of Main Circuit Operation
33
- Power Circuit
  39
- Indoor/Outdoor Interface Circuit
  41
- Serial Communications Data
  45
- IPM (Intelligent Power Module)
  46
- IPM Drive Circuit
  49
- Power Circuit for PWB
  50
- The Voltage Specification of the Power Circuit
  51
- Microcomputer's Peripheral Circuits
  52
- Overload Control Circuit (OVL Control Circuit)
  52
- Start Current Control
  54
- Reset Circuit
  55
- Temperature Detection Circuit
  56
- Reserving Value Control Circuit
  57
- Electric Expansion Valve Control Circuit
  58
- Outdoor DC Fan Motor Control Circuit
  59
- Dehumidifying Mode
  61
- Heating Mode
  61
Service Call Q & a
61
Precautions for Checking
64
Trouble Shooting
64
Parts List and Diagram
92

Hitachi Summit RAS-18YH5 Information Booklet & User Manual (68 pages)

Monozone/Multizone, Summit, Monoduct, Bigflow, Air Exchanger, Room Air Conditioner

Brand: Hitachi | Category: Air Conditioner | Size: 8.35 MB

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