User Manuals: Toshiba MMY-MUP1801HT7P Air Conditioner

Manuals and User Guides for Toshiba MMY-MUP1801HT7P Air Conditioner. We have 1 Toshiba MMY-MUP1801HT7P Air Conditioner manual available for free PDF download: Service Manual

Toshiba MMY-MUP1801HT7P Service Manual (310 pages)

AIR CONDITIONER (MULTI TYPE) Super Modular Multi System-u SMMS-u

Brand: Toshiba | Category: Air Conditioner | Size: 24.74 MB

Table of Contents
2
Generic Denomination: Air Conditioner
6
Safety Caution
6
Refrigerant (R410A)
13
- Required Tools for R410A
  14
- Tools
  14
- General Tools
  14
- Explanation of Symbols
  14
Wiring Diagrams

16
Parts Rating

19
Refrigerant Piping Schematic Drawing

33
- Indoor Unit
  37
- U Series Indoor Unit Functional Part Explanation
  37
Combined Refrigerant Piping System Schematic Diagrams

38
- Refrigerant Flow (Cooling)
  38
- Refrigerant Flow (Single Defrost)
  39
- Refrigerant Flow (Heating)
  
  40
- Refrigerant Flow (Individual Defrost)
  
  41
- Refrigerant Flow (Reclaim)
  
  46
- 5
  
  47
  - Control Outline
    47
    
    Outdoor Unit
    47
    
    Cooling Fan Control
    48
    
    Heating Fan Control
    48
    
    Control Content
    50
    
    Control Start Condition
    50
    
    During Cooling Operation
    50
    
    During Heating Operation
    50
    
    Defrost Control Content
    51
    
    Defrost End Control Content
    51
    
    Defrost Termination Condition
    51
    
    Defrosting Start Condition
    51
    
    Release Condition
    52
    
    SV4 Gas Balance Control
    52
    
    SV4 High Pressure Release Control
    52
    
    SV4 Low Pressure Release Control
    52
    
    Current, Power Release Value Control
    54
    
    Heat Sink Overheat Abnormality
    54
    
    High Pressure SW Control
    54
    
    Cooling Operation at Low Outdoor Temperature
    55
    
    Fan Mode During Heating Operation on same System Line of Indoor Unit
    55
    
    PMV (Pulse Motor Valve)
    55
    
    Adjustment Range
    56
    
    Distinction of Outdoor Unit
    56
- Indoor Unit
  
  56
  - Air Speed Selection
    59
  - Prevention of Cold Air Discharge
    60
  - Reset Conditions
    60
  - Louver Position Setup
    63
  - Swing Setup
    63
  - Individual Air Direction Setup
    64
  - Louver Lock
    65
  - Selection of Swing Mode
    65
Applied Control and Functions

67
Test Operation

108
Troubleshooting

169
Backup Operation (Emergency Operation)

247
- Note for Backup Operation
  
  247
- Compressor Backup Operation Setting
  
  248
  - Work Procedure
    248
- Outdoor Unit Backup Operation Setting
  
  250
  - Follower Outdoor Unit Backup Operation Setting (Failure of Follower Outdoor Unit)
    250
    
    Setup of Failed Follower Outdoor Unit
    250
    
    Setup of Header Unit
    251
  - Header Outdoor Unit Backup Operation Setting
    253
    
    Selection of New Header Unit
    253
    
    Setup of Failed Header Outdoor Unit
    253
    
    Unit)
    253
    
    Wiring Changes to Communication Line
    254
- Cooling-Season Outdoor Unit Backup Operation Setting
  
  255
  - Setup of Failed Outdoor Unit
    255
- Outdoor Unit Automatic Backup Operation Outline
  
  256
Outdoor Unit Refrigerant Recovery Method

257

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User Manuals: Toshiba MMY-MUP1801HT7P Air Conditioner

Toshiba MMY-MUP1801HT7P Service Manual (310 pages)

Table of Contents

Wiring Diagrams

Parts Rating

Outdoor Unit (50Hz Model: MMY-MUP***1HT8*)

Outdoor Unit (60Hz Model: MMY-MUP***1HT7*)

Outdoor Unit (50Hz Model: MMY-MUP***1HT8P-A)

Winding Resistance of Outdoor Unit Main Parts

Inverter Assembly

Parts Layout in Inverter Assembly

Refrigerant Piping Schematic Drawing

Combined Refrigerant Piping System Schematic Diagrams

Refrigerant Flow (Heating)

Refrigerant Flow (Individual Defrost)

Refrigerant Flow (Reclaim)

5

Indoor Unit

Applied Control and Functions

Test Operation of Indoor Unit

Method to Set Indoor Unit Function DN Code

Method to Set Outdoor Unit Function Code No. (O.DN )

Applied Control of Indoor Unit

Applied Control of Outdoor Unit

Notice Code

System Cooperation Defrosting

Night Operation (Sound Reduction Control)

Test Operation

Procedure and Summary of Test Operation

Check Items before Test Operation (before Powering-On)

Check at Main Power-On

Troubleshooting in Test Operation

Test Operation Check

Service Support Function

Wave Tool Advance for SMMS-U Series

Troubleshooting

Overview

Troubleshooting Method

Troubleshooting Based on Information Displayed on Remote Controller

Check Codes Displayed on Remote Controller and SMMS-U Outdoor Unit (7-Segment Display on I/F Board) and Locations to be Checked

Diagnosis Procedure for each Check Code

7-Segment Display Function

Oil Level Judgment Display

SMMS-U Outdoor Interface P.C. Board Function Setting Change Table

Leakage/Clogging of Refrigerating Cycle Circuit

Sensor Characteristics

Backup Operation (Emergency Operation)

Note for Backup Operation

Compressor Backup Operation Setting

Outdoor Unit Backup Operation Setting

Cooling-Season Outdoor Unit Backup Operation Setting

Outdoor Unit Automatic Backup Operation Outline

Outdoor Unit Refrigerant Recovery Method

Refrigerant Recovery from Troubled Outdoor Unit (Reclaim)

Work Procedure after Repair

Outdoor Unit (14A, 16, 18, 20HP)

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