Sanyo MDF-U72VC User Manual

25
CHANGE OF DOOR ALARM DELAY TIME
The buzzer of door alarm is activated with 2 minutes delay when the door is open. The delay time is
changeable.
Follow the procedure in table 9 below to change the setting of delay time. The procedure assumes that
the delay time is changed from 2 minutes to 3 minutes.
(The delay time is set in 2 minutes at the factory.)
Table 9. Changing procedure for delay time (change from 2 minutes to 3 minutes)
Description of operation Key operated Indication after operation
1 ----
The current chamber temperature is
displayed.
2
Press numerical value shift key for
5 seconds.
The first digit is flashed.
3
Set the figure to F04 with the
numerical value shift key.
When pressed, the figure of settable
digit changes.
4 Press SET key. SET
The current delay time is displayed.
The first digit is flashed.
5
Set the figure to 003 with the
numerical value shift key.
When pressed, the figure of the first
digit changes.
6 Press SET key. SET
The delay time is memorized and
the current chamber temperature is
displayed.
Note:
• The setting range for delay time is between 1and 15 minutes.

Sanyo MDF-U72VC Specifications

General

Model	MDF-U72VC
Type	Upright Freezer
Category	Freezer
Temperature Range	-50°C to -86°C
Number of Doors	1
Shelves	4

Summary

Safety Precautions

General Safety Information

Covers safety symbols and initial warnings regarding CO2 gas and high voltage components.

Site, Electrical, and Storage Safety

Details safe installation locations, power requirements, grounding, and storage of substances.

Unit Operation and Maintenance Safety

Provides guidelines for safe operation, maintenance, disposal, and handling of CO2 backup systems.

Usage and Handling Cautions

Details cautions for operating the unit, handling stored items, and performing maintenance safely.

Freezer Installation Guide

Selecting the Installation Site

Outlines crucial factors for choosing a suitable installation site to ensure proper cooling and safety.

Installation Procedures

Provides step-by-step instructions for installing the freezer, including leveling and grounding.

Unit Startup Procedure

Initial Unit Startup Procedure

Details the sequence of operations for initial startup, including connecting power and checking alarms.

Temperature Setting Guide

Setting Chamber Temperature

Guides the user through the process of setting and confirming the desired chamber temperature.

Setting Alarm Temperatures

Explains how to configure high and low temperature alarm settings for monitoring.

Alarms and Safety Functions

Alarm and Safety Function Overview

Summarizes the unit's alarm conditions, indications, and corresponding safety operations.

Freezer Status Monitoring

Understanding Running Status Monitoring

Compressor Delay Time Adjustment

Adjusting Compressor Start Delay

Door Alarm Delay Time Adjustment

Adjusting Door Alarm Delay

Troubleshooting Common Issues

Common Malfunctions and Solutions

Helps diagnose and resolve common issues such as cooling problems, alarms, and noise.

Technical Specifications

MDF-U72V/U72VC Specifications

MDF-U52V/U52VC Specifications

Freezer Performance Data

Cooling and Power Performance