Sanyo MDF-U53V Service Manual

RoHS
This product does not contain any hazardous substances prohibited by the RoHS Directive.
(You will find ‘RSF’ mark near the rating plate on the RoHS compliant product.)
WARNING
* You are requested to use RoHS compliant parts for maintenance or repair.
* You are requested to use lead-free solder.
SM9910073
SANYO Electric Co., Ltd.
Biomedical Business Unit
Service Manual
Ultra-Low Temperature Freezer
MDF-U53V
MDF-U53VC
FILE No.

Sanyo MDF-U53V Specifications

General

Brand	Sanyo
Model	MDF-U53V
Category	Freezer
Language	English

Summary

Specifications

Structural Specifications

Details physical dimensions, construction materials, and components of the freezer.

Performance Specifications

Cooling Unit Parts Identification

PCB Components Layout

Electrical Parts List

PCB Connection Details

Wiring Diagram (MDF-U53V)

Wiring Diagram (MDF-U53VC)

Circuit Diagram

Control Specifications: Basic Operations

Temperature Setting Procedure

Procedure to set the internal chamber temperature.

Temperature Alarm Configuration

Setting high and low temperature alarm thresholds.

Control Specifications: Modes & Functions

Key Lock and Function Mode Access

Control Specifications: Sensor & Function Modes

Function Mode List Overview

List and description of various function modes (F00-F25).

Control Specifications: Function Mode Details

Function Mode Details (F00-F22)

Details specific function modes like F00-F22.

Function Mode Details (F08, F12-F22)

Details specific function modes like F08, F12-F22.

Function Mode Details (F23-F30)

Details specific function modes like F23-F30.

Control Specifications: Function Mode Details & Settings

Function Mode Details (F31-F32)

Details specific function modes like F31-F32.

Compressor Differential Settings

Sensor Offset Value Adjustments

Control Specifications: Sensor Failure Diagnostics

Sensor Failure Diagnostics

Error codes and behavior for sensor failures (Temp, Cascade, Filter, AT).

Control Specifications: Error Handling

Control Specifications: Power-On Behavior

Power-On Compressor Behavior

Test Data Summary

Temperature Characteristics Curves

Sample Load Test (SV-80)

Temperature Stability at -80°C

H/L EVA OUT Temperature Data

Sample Load Test (SV-50)

General Safety Precautions

Freezer Component Identification

Freezer Components: Control Panel

Control Panel Button Layout

Installation Site Requirements

Installation Step-by-Step Procedures

Unit Initial Start-Up Guide

Chamber Temperature Setting

Key Lock Functionality

Alarm Temperature Setting

Alarms and Safety Functions Table

Routine Maintenance Procedures

Cabinet Cleaning Instructions

Inside Wall Defrosting Steps

Condenser Filter Cleaning Guide

Procedure for cleaning the condenser filter.

Troubleshooting Common Issues

Battery Replacement Guide