Equipment information

NEC MultiSyncP701 Monitor
Manufacturer:
Model:
MultiSyncP701
Date:
Category:
Group:
Description:
LCD 70" Public Display
User Manual
Manual Type:
User Manual
Pages:
40
Size:
3.69 Mbytes (3867254 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Electronic document, no scan, very well readable.
Upload date:
2020 01 26
MD5:
26ef7e5e15eebfc027452d3c531e2f49
Downloads:
276

Information

This service manual is made to assist the service technician apply his knowledge and training to this model Air Conditioner. This manual is written both for experienced service persons and those who are new to air conditioning service. To help those with less experience or who are new to this kind of unit we have included more explanations of basic procedures in simple language than is usual in some service manuals. The experienced technician will of course find he knows many of these things already and can go directly to the procedures and information he needs; the less experienced technician will better understand what to do even before he arrives on the job, and therefore be better able to work by himself as well as assist the more experienced technician. TABLE OF CONTENTS 1. SPECIFICATIONS ... I - 1 1-1 Unit Specifications ... I - 2 1-2 Major Component Specifications ... I - 12 (A) Indoor Units ... I - 12 (B) Outdoor Units ... I - 22 1-3 Other Component Specifications ... I - 25 1-4 Dimensional Data ... I - 38 (A) Indoor Units ... I - 38 (B) Outdoor Units ... I - 47 1-5 Refrigerant Flow Diagram ... I - 49 1-6 Operating Range ... I - 50 1-7 Cooling Capacity ... I - 51 1-8 Heating Capacity ... I - 71 1-9 Performance Charts ... I - 72 1-10 Noise Criterion Curves ... I - 90 1-11 Increasing the Fan Speed ... I - 95 1-12 Air throw Distance Chart ... I - 96 1-13 Installation Instructions ... I - 99 2. PROCESSES AND FUNCTIONS ... II - 1 2-1 Room Temperature Control ... II - 2 2-2 Cold Draft Prevention (Heating Cycle) ... II - 4 2-3 Automatic Fan Speed (Indoor Unit) ... II - 5 2-4 Outdoor Fan Speed Control ... II - 6 2-5 Freeze Prevention (Cooling) ... II - 7 2-6 Condensing Temperature Control (Cooling) ... II - 8 2-7 Overload Protection (Heating) ... II - 9 2-8 Discharge Temperature Control (Cooling and Heating) ... II - 10 2-9 Auto. Mode for Automatic Heating/Cooling Switching ... II - 11 2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating) ... II - 13 2-11 4-Way Valve, Solenoid Control ... II - 14 2-12 Automatic Restart after Power Interruption ... II - 15 2-13 Electronic Expansion Control Valve ... II - 16 2-14 Compressor Discharge Gas Temperature ... II - 16 2-15 Compressor Current Detection Circuit ... II - 17 2-16 Electronic Expansion Valve ... II - 18 2-17 Voltage Detection Control ... II - 19 3. ELECTRICAL DATA ... III - 1 3-1 Indoor Unit (Electric Wiring Diagram, Schematic Diagram) ... III - 2 3-2 Outdoor Unit (Electric Wiring Diagram, Schematic Diagram) ... III - 12 4. SERVICE PROCEDURES ... IV - 1 4-1 Troubleshooting ... IV - 2 4-2 Checking the Electrical Components ... IV - 30

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