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Sanyo KS0971 Service Manual

Sanyo KS0971
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Tubing precautions
Refrigerant R410A is more easily affected by dust or moisture compared with R22, thus be sure to temporarily
cover the ends of the tubing with caps or tape prior to installation.
Never use 0.0276" (0.7 mm)-thick copper tubing or tubing which is less than 0.0315" (0.8 mm) in thickness, since
air conditioners with R410A are subject to higher pressure than those using R22 and R407C.
No addition of compressor oil for R410A
No additional charge of compressor oil is permitted.
No use of refrigerant other than R410A
Never use a refrigerant other than R410A.
If refrigerant R410A is exposed to fire
Through welding, etc., toxic gas may be released when R410A refrigerant is exposed to fire. Therefore, be sure
to provide ample ventilation during installation work.
Caution in case of R410A leak
Check for possible leak points with the special leak detector for R410A. If a leak occurs inside the room,
immediately provide thorough ventilation.
A
D
Flare tool for R410A
A
D
Conventional flare tool (R22)
Spacer
12-2. Checklist before Servicing
Use a clutch-type flare tool for R410A or the conventional flare tool. Note that sizes of the resultant flares differ
between these two tools. Where a conventional flare tool is used, make sure to observe A Specification (amount of
extrusion) by using the flare spacer.
Size of flare
Specification A
Diameter of tube D
Dia.1/4" (6.35 mm)
Dia.3/8" (9.52 mm)
Dia.1/2" (12.7 mm)
Dia.5/8" (15.88 mm)
Flare tool for R410A Conventional flare tool (for R22)
0 to 0.0196"
(0 to 0.5 mm)
0.0472"
(1.2 mm)
51

Table of Contents

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Sanyo KS0971 Specifications

General IconGeneral
BrandSanyo
ModelKS0971
CategoryAir Conditioner
LanguageEnglish

Summary

Important Safety Precautions

Safe Installation and Operation Guidelines

Key steps for safe installation, operation, and adherence to codes.

Wiring Safety Precautions

Critical safety warnings for electrical wiring, emphasizing qualified personnel.

Unit Specifications Overview

Unit Specifications Details

Detailed specifications for indoor and outdoor units, including performance and electrical ratings.

Major Component Specifications

Major Component Specifications for Outdoor Unit

Refrigerant Flow Diagram and Tubing Insulation

Performance Data: Temperature Charts

Electrical Characteristics

Electric Wiring Diagrams: Indoor Unit

Electric Wiring Diagrams: Outdoor Unit C0971

Electric Wiring Diagrams: Outdoor Unit C1271

Installation Site Selection

Recommended Wire Length and Diameter

Remote Control Unit Installation Position

How to Test Run the Air Conditioner

Indoor Unit Grille Removal and Installation

Functions

Protective Functions

Troubleshooting Precautions and Self-Diagnostics

Performing Self-Diagnostics

Procedure for executing the unit's self-diagnostic function for troubleshooting.

Checking Indoor and Outdoor Units

Outdoor Fan Motor Trouble Diagnosis

Measurement of Insulation Resistance

Fuse Continuity Check on PCB Assembly

Refrigerant R410A: Special Servicing Precautions

Characteristics of New Refrigerant R410A

Details on the properties, components, and characteristics of R410A refrigerant.

Pre-Servicing Checklist for R410A

Tools Specifically for R410A Servicing

Compressor Malfunction Procedures

Refrigerant Leak Detection and Repair

Charging Additional Refrigerant and Retro-Fitting

Installation Location Guidelines

Remote Control Unit Components

Remote Control Unit Button Functions

Using the Remote Control Unit

Basic Operation with Remote Control

Setting the Timer: Present and OFF Time

Setting ON Time and Repeat Timers

Adjusting Airflow Direction

Care and Cleaning Precautions

Troubleshooting Common Issues

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