Mitsubishi Electric MSC-GE-VB User Manual

SERVICE TECHNICAL GUIDE
CONTENTS
1. MSC/MS/MSH MICROPROCESSOR CONTROL ····· 4
2. MSZ/MLZ MICROPROCESSOR CONTROL ·······11
3. MXZ MICROPROCESSOR CONTROL ··············· 24
SPLIT-TYPE AIR CONDITIONERS
No. OBT17
REVISED EDITION-G
Revision G:
• MSZ-EF·VEW -
E
, MSZ-EF·VEB -
E
, MSZ-
EF·VES -
E
and MXZ-C·VA -
E
have been
added.
Please void OBT17 REVISED EDITION-F.
CONFIDENTIAL
(FOR INTERNAL USE ONLY)
Models
MSC-GE•VB -
E
MS-GD•VB -
E
· MU-GD•VB -
E
MS-GE•VB -
E
· MU-GE•VB -
E
MSH-GD•VB -
E
· MUH-GD•VB -
E
MSH-GE•VB -
E
· MUH-GE•VB -
E
MSZ-GC•VA -
E
· MUZ-GC•VA(H) -
E
MSZ-HC•VA(B) -
E
· MUZ-HC•VA(B) -
E
MSZ-CHC•VA -
E
MSZ-FD•VA(S) -
E
· MUZ-FD•VA(H)(BH) -
E
MSZ-GE•VA -
E
· MUZ-GE•VA(H) -
E
MSZ-CGE•VA -
E
MSZ-SF•VA -
E
MSZ-EF•VEW -
E
· MUZ-EF•VE -
E
MSZ-EF•VEB -
E
· MUZ-EF•VEH -
E
MSZ-EF•VES -
E
· MXZ-B•VA -
E
MLZ-KA•VA -
E
· MXZ-C•VA -
E

Mitsubishi Electric MSC-GE-VB Specifications

General

Brand	Mitsubishi Electric
Model	MSC-GE-VB
Category	Air Conditioner
Language	English

Summary

MSC/MS/MSH MICROPROCESSOR CONTROL

INDOOR FAN MOTOR CONTROL

MSZ/MLZ MICROPROCESSOR CONTROL

COOL OPERATION

Thermostat, fan speed, frost prevention, and low temp operation.

HEAT OPERATION

Thermostat, fan speed, cold air prevention, overload, and defrosting.

AUTO CHANGE OVER / AUTO MODE OPERATION

OPERATIONAL FREQUENCY CONTROL OF OUTDOOR UNIT

EXPANSION VALVE CONTROL/LEV CONTROL

Controls LEV based on operational frequency and discharge temp.

MXZ MICROPROCESSOR CONTROL

INVERTER SYSTEM CONTROL

Details inverter power supply circuits for MXZ models.

EXPANSION VALVE CONTROL (LEV CONTROL)

LEV control based on unit status and capacity.

OPERATIONAL FREQUENCY RANGE

HEAT DEFROSTING CONTROL

DISCHARGE TEMPERATURE PROTECTION CONTROL

Controls compressor based on discharge temperature.

OUTDOOR FAN CONTROL

COOL OPERATION

HEAT OPERATION