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Sanyo KS0971 Service Manual

Sanyo KS0971
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12-5. In Case of Compressor Malfunction
CAUTION
Should the compressor malfunction, be sure to make the switch to a replacement
compressor as quickly as possible.
Use only the tools indicated exclusively for R410A. See "12-3. Tools
Specifically for R410A."
12-5-1. Procedure for Replacing Compressor
(1) Recovering refrigerant
Any remaining refrigerant inside the unit should not be
released to the atmosphere, but recovered using the
refrigerant recovery unit for R410A.
Do not reuse the recovered refrigerant, since it will contain
impurities.
(2) Replacing Compressor
Soon after removing seals of both discharge and suction
tubes of the new compressor, replace it quickly.
(3) Checking for sealing
Use nitrogen gas for the pressurized gas, and never use a
refrigerant other than R410A. Also do not use oxygen or
any flammable gas.
(4) Evacuation
Use a solenoid valve-installed vacuum pump
so that
even if power is cut off in the middle of evacuation of air
due to a power interruption, the valve will prevent the
pump oil from flowing back.
The equipment may be damaged if moisture remains in
the tubing, thus carry out the evacuation thoroughly.
When using a vacuum pump with exhaust air volume more
than 0.883 cu.ft./min. and ultimate vacuum pressure rate
of 50 micron Hg.
Standard time for evacuation
(1) Recover refrigerant
OK
(2) Replace compressor
OK
(3) Check for sealing
OK
(4) Evacuation
OK
(5) Recharge
Length of tubing
Evacuation time
Less than 33 ft. (10 m)
More than 10 minutes
More than 33 ft. (10 m)
More than 15 minutes
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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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