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Toshiba MMD-UP0721HFP Series User Manual
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R410A
SER
VICE MANUAL
AIR-CONDITIONER
MUL
TI
TYPE
MMD-UP0721HFP Series
MMD-UP0961HFP Series
MMD-UP1121HFP Series
MMD-UP1281HFP Series
INDOOR UNIT
<
Fresh Air Intake Indoor Unit
>
September
, 2021
FILE NO. SVM-21089
2
Table of Contents
Table of Contents
2
Precautions for Safety
5
Summary of Product Characteristics
10
System Control of Fresh Air Intake Unit
11
Specifications
14
Construction Views (External Views)
17
Wiring Diagrams
18
Refrigerant Cycle Diagram
19
Parts Rating
20
Control Outline
21
Communicating Systems, Model Names and Group Control
27
Indoor Control Circuit
28
Indoor Controller Block Diagram
28
Indoor Printed Circuit Board
29
Test Run of Indoor Unit
33
Method to Set Indoor Unit Function DN Code
37
Applied Control of Indoor Unit
42
Troubleshooting
61
Overview
61
Troubleshooting Method
62
Troubleshooting Based on Information Displayed on Remote Controller
68
Check Codes Displayed on Remote Controller and SMMS Outdoor Unit (7-Segment Display on I/F Board) and Locations to be Checked
73
Diagnostic Procedure for each Check Code (Indoor)
87
Main Part Replacement Methods
98
C.board Exchange Procedures
107
Exploded Views and Price List of Parts
114
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Toshiba MMD-UP0721HFP Series Specifications
General
Brand
Toshiba
Model
MMD-UP0721HFP Series
Category
Air Conditioner
Language
English
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