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Toshiba MMY-MAP1604T8P-T User Manual

Toshiba MMY-MAP1604T8P-T
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SERVICE MANUAL
AIR-CONDITIONER (MULTI TYPE)
<SUPER MODULAR MULTI SYSTEM - i>
Outdoor Unit
Model name:
FILE NO. SVM-13024-2
MMY-MAP0804HT8(J)P
MMY-MAP1004HT8(J)P
MMY-MAP1204HT8(J)P
MMY-MAP1404HT8(J)P
MMY-MAP1604HT8(J)P
MMY-MAP0804HT8(J)P-E
MMY-MAP1004HT8(J)P-E
MMY-MAP1204HT8(J)P-E
MMY-MAP1404HT8(J)P-E
MMY-MAP1604HT8(J)P-E
MMY-MAP0804HT8(J)P-TR
MMY-MAP1004HT8(J)P-TR
MMY-MAP1204HT8(J)P-TR
MMY-MAP1404HT8(J)P-TR
MMY-MAP1604HT8(J)P-TR
<Heat Pump Model>
<4-way Cassette Type>
(MMU-AP***4HP-E) (Made in Thailand model) SVM-13-011
<2-way Cassette Type>
(MMU-AP
***
2WH) A10-007
<Concealed Duct Standard Type>
(MMD-AP
***
6BH-E) A12-005
<Slim Duct Type>
(MMD-AP0244SPH-E, AP0274SPH-E) A12-005
Fresh Air Intake Indoor Unit Type
(MMD-AP
****
HFE) A06-016
<Air to Air Heat Exchanger with DX Coil Unit Type>
(MMD-VN
*****
HEXE
*
) A10-022-2
High-wall Type
(MMK-AP
***
3H) (Made in Thailand model) SVM-09-059
Console Type
(MML-AP
****
NH-E) (Made in Thailand model) SVM-11-036
Other indoor units
(MM
*
-AP
*****
H
*
) A10-033
MMY-MAP0804HT7(J)P
MMY-MAP1004HT7(J)P
MMY-MAP1204HT7(J)P
MMY-MAP1404HT7(J)P
MMY-MAP1604HT7(J)P
MMY-MAP0804T8(J)P
MMY-MAP1004T8(J)P
MMY-MAP1204T8(J)P
MMY-MAP1404T8(J)P
MMY-MAP1604T8(J)P
MMY-MAP0804T8(J)P-T
MMY-MAP1004T8(J)P-T
MMY-MAP1204T8(J)P-T
MMY-MAP1404T8(J)P-T
MMY-MAP1604T8(J)P-T
MMY-MAP0804T8(J)P-SG
MMY-MAP1004T8(J)P-SG
MMY-MAP1204T8(J)P-SG
MMY-MAP1404T8(J)P-SG
MMY-MAP1604T8(J)P-SG
<Cooling Only Model>
MMY-MAP0804T8(J)P-ID
MMY-MAP1004T8(J)P-ID
MMY-MAP1204T8(J)P-ID
MMY-MAP1404T8(J)P-ID
MMY-MAP1604T8(J)P-ID
This service manual provides relevant explanations about new outdoor unit (SMMS-i).
Please refer to the following service manuals for each indoor units.

Table of Contents

Questions and Answers:

Toshiba MMY-MAP1604T8P-T Specifications

General IconGeneral
Cooling Capacity16.0 kW
Heating Capacity18.0 kW
RefrigerantR410A
Outdoor Unit Noise Level56 dB(A)
Outdoor Unit Dimensions (HxWxD)1340x900x320 mm
TypeSplit System
Power Supply380-415V, 3Ph, 50Hz

Summary

SAFETY CAUTION

New Refrigerant (R410A)

Information on the adoption of HFC type refrigerant R410A for ozone layer protection.

1 Wiring Diagrams

1-1. Outdoor Unit

Wiring diagrams for the outdoor unit.

1-2. Indoor Unit

Wiring diagrams for various types of indoor units.

1-2-1. 4-way Cassette Type

Wiring diagram for the 4-way cassette type indoor unit.

1-2-2. Compact 4-way Cassette Type

Wiring diagram for the compact 4-way cassette type indoor unit.

1-2-3. 1-way Cassette Type (Compact type)

Wiring diagram for the 1-way cassette type indoor unit (compact).

1-2-4. 1-way Cassette Type SH series

Wiring diagram for the 1-way cassette type SH series indoor unit.

1-2-5. 2-way Cassette Type 2 series

Wiring diagram for the 2-way cassette type 2 series indoor unit.

1-2-6. Concealed Duct Standard Type

Wiring diagram for the concealed duct standard type indoor unit.

1-2-7. Concealed Duct Standard Type 6 series

Wiring diagram for the concealed duct standard type 6 series indoor unit.

1-2-8. Concealed Duct High Static Pressure Type

Wiring diagram for the concealed duct high static pressure type indoor unit.

1-2-9. Slim Duct Type

Wiring diagram for the slim duct type indoor unit.

1-2-10. Slim Duct Type (AP024, AP027)

Wiring diagram for the slim duct type indoor unit (AP024, AP027).

1-2-11. Ceiling Type

Wiring diagram for the ceiling type indoor unit.

1-2-12. High Wall Type 4MH series

Wiring diagram for the high wall type 4MH series indoor unit.

1-2-13. High Wall Type 3 series

Wiring diagram for the high wall type 3 series indoor unit.

1-2-14. Floor Standing Cabinet Type

Wiring diagram for the floor standing cabinet type indoor unit.

1-2-15. Floor Standing Concealed Type

Wiring diagram for the floor standing concealed type indoor unit.

1-2-16. Floor Standing Type

Wiring diagram for the floor standing type indoor unit.

1-2-17. Air to Air Heat Exchanger with DX Coil Unit

Wiring diagram for the air to air heat exchanger with DX coil unit.

1-2-18. Fresh Air Intake Indoor Unit

Wiring diagram for the fresh air intake indoor unit.

2 Parts Rating

2-1. Outdoor Unit (50Hz model: MMY-MAP***4*T8*P*)

Parts rating for 50Hz outdoor units.

2-2. Outdoor Unit (60Hz model: MMY-MAP***4HT7*P)

Parts rating for 60Hz outdoor units.

2-3. Outdoor Inverter (50Hz model: MMY-MAP***4*T8*P*)

Parts rating for 50Hz outdoor inverter units.

2-4. Outdoor Inverter (60Hz model: MMY-MAP***4HT7*P)

Parts rating for 60Hz outdoor inverter units.

2-5. Parts Layout in Outdoor Unit

Exploded view showing the location of parts in the outdoor unit.

2-6. Parts Layout in Inverter Assembly

Exploded view showing the location of parts in the inverter assembly.

2-7. Outdoor (Inverter) Print Circuit Board

Identification of print circuit boards within the outdoor inverter unit.

2-7-1. Interface P.C. board (MCC-1606)

Details of the interface P.C. board.

2-7-2. Inverter P.C. board for compressor (MCC-1596) A3-IPDU

Details of the inverter P.C. board for the compressor.

2-7-3. Inverter P.C. board for fan (MCC-1610)

Details of the inverter P.C. board for the fan.

3 Refrigerant Piping Systematic Drawing

4 Combined Refrigerant Piping System Schematic Diagrams

4-1. Normal Operation (COOL Mode / DEFROST Mode) - High Outside Air Temperature (Roughly 20°C or Above)

Schematic diagram for normal operation in COOL/DEFROST mode at high outside temperatures.

4-2. Normal Operation (COOL Mode) - Low Outside Air Temperature (Roughly Below 20°C)

Schematic diagram for normal operation in COOL mode at low outside temperatures.

4-3. Normal Operation (HEAT Mode)

Schematic diagram for normal operation in HEAT mode.

4-4. Emergency Operation (Cooling Operation under Header Outdoor Unit Backup Scenario)

Schematic diagram for emergency cooling operation with backup from header unit.

4-5. Emergency Operation (Heating Operation under Header Outdoor Unit Backup Scenario)

Schematic diagram for emergency heating operation with backup from header unit.

4-6. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down Operation under Follower Outdoor Unit Backup Scenario)

Schematic diagram for refrigerant recovery during pump-down with follower unit backup.

5 Control Outline

Indoor Unit Control Specifications

Specifications and control items for indoor units.

6 Applied Control and Functions (including Circuit Configuration)

6-1. Indoor Controller Block Diagram

Block diagram illustrating the indoor controller configuration.

6-1-1. When Wired (Simple) Remote Controller Connected

Block diagram for wired remote controller connection.

6-1-2. When Wireless Remote Controller Kit Connected

Block diagram for wireless remote controller kit connection.

6-1-3. When Both Main (Sub) Remote Controller and Wireless Remote Controller Kit Connected

Block diagram for connection with both wired and wireless controllers.

6-2. Indoor Printed Circuit Board

Layout and identification of components on the indoor P.C. board.

6-3. Optional Connector Specifications of Indoor P.C. Board

Specifications for optional connectors on the indoor P.C. board.

6-4. Test Operation of Indoor Unit

Procedure for testing the operation of the indoor unit.

6-5. Method to Set Indoor Unit Function DN Code

Procedure for setting indoor unit functions using DN codes.

7 TEST OPERATION

7-1. Procedure and Summary of Test Operation

Overview and steps for performing a test operation.

7-2. Check Items before Test Operation (before powering-on)

Pre-operation checks for installation and wiring.

7-3. Check at Main Power-on

Checks to perform after turning on the main power.

7-4. Address Setup

Procedures related to setting up system addresses.

7-4-1. Precautions

Precautions regarding address setup procedures.

7-4-2. Address Setup and Check Procedure

Steps for performing address setup and verification.

7-4-3. Address Setup Procedure

Detailed procedure for setting addresses.

7-4-4. Check after Address Setup when Central Control System Is Connected

Verification steps after address setup with a central control system.

7-5. Troubleshooting in Test Operation

Troubleshooting guide for issues encountered during test operations.

7-5-1. A Check Code is Displayed on the Remote Controller

Troubleshooting steps when a check code appears on the remote controller.

7-6. Test Operation Check

Checks to perform after completing test operations.

7-6-1. Fan Check

Procedure for checking the fan operation during test.

7-6-2. Single cooling/Single heating Test Operation Check

Procedure for single cooling/heating test operation.

7-7. Service Support Function

Functions for service support and diagnostics.

7-7-1. Check Function for Connecting of Refrigerant and Control Lines

Function to check refrigerant and control line connections.

7-7-2. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit

Function to control indoor unit ON/OFF status from the outdoor unit.

7-7-3. Error Clearing Function

Procedures for clearing detected errors.

7-7-4. Remote Controller Distinction Function

Function to distinguish connected remote controllers.

7-7-7. Solenoid Valve Forced Open/Close Function in Outdoor Unit

Function to force open/close outdoor solenoid valves.

7-7-8. Fan Operation Check in Outdoor Unit

Function to check outdoor fan operation.

7-7-9. Abnormal Outdoor Unit Discrimination Method By Fan Operating Function

Method to discriminate abnormal outdoor units using fan operation.

7-7-10. Manual Adjustment Function of Outside Temperature (TO) Sensor

Function to manually adjust the outside temperature sensor value.

7-7-11. Monitor Function of Remote Controller Switch

Function to monitor remote controller switch operations.

8 TROUBLESHOOTING

8-1. Overview

General overview of troubleshooting procedures and required tools.

8-2. Troubleshooting Method

Detailed method for troubleshooting faults using check codes.

8-3. Troubleshooting Based on Information Displayed on Remote Controller

Troubleshooting based on remote controller and indoor unit displays.

8-5. Diagnosis procedure for each check code

Diagnostic flowcharts for various check codes.

8-6. 7-Segment Display Function

Explanation of the 7-segment display function for checking status.

8-7. Oil Level Judgment Display

Display and interpretation of compressor oil level judgment results.

8-8. Leakage/Clogging of Refrigerating Cycle Circuit

Troubleshooting for refrigerant leaks and blockages in the cycle.

8-9. Sensor Characteristics

Resistance characteristics of various sensors at different temperatures.

8-10. Pressure Sensor Output Check

Output voltage characteristics of pressure sensors.

9 BACKUP OPERATION (EMERGENCY OPERATION)

9-1. Note for Backup Operation

Important notes regarding backup operation procedures and limitations.

9-2. Compressor Backup Operation Setting

Procedure for setting compressor backup operation.

9-3. Outdoor Unit Backup Operation Setting

Procedure for setting outdoor unit backup operation.

9-4. Cooling-Season Outdoor Unit Backup Operation Setting

Setting backup operation specifically for the cooling season.

10 OUTDOOR UNIT REFRIGERANT RECOVERY METHOD

10-1. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)

Method for recovering refrigerant from a failed outdoor unit via pump-down.

10-1-1. Note for refrigerant recovery operation

Important notes for performing refrigerant recovery.

10-1-2. Refrigerant recovery procedure A (Case of no outdoor unit backup operation setting)

Refrigerant recovery procedure when backup setting is not used.

10-1-3. Refrigerant recovery procedure B (Case of outdoor unit backup operation setting)

Refrigerant recovery procedure when backup setting is used.

10-2. How to Operate System While Failed Outdoor Unit Being Repaired

Procedure for operating the system while a failed outdoor unit is under repair.

10-3. Work procedure after Repair

Procedures to follow after completing repairs to the outdoor unit.

11 REPLACING COMPRESSORS

11-1. Compressor Replacement Procedure (Outline)

General outline for compressor replacement procedures.

11-2. Replacement of Compressors

Detailed procedures for replacing compressors.

11-3. Check Procedure to Search Cause of Compressor Oil Shortage

Procedure for investigating the cause of compressor oil shortage.

12 OUTDOOR UNIT PARTS REPLACEMENT METHODS

1 Cabinet

Procedure for detaching and attaching the outdoor unit cabinet.

13 P.C. BOARD EXCHANGE PROCEDURES

13-1. Replacement of Indoor P.C. Boards

Procedures for replacing indoor P.C. boards.

13-2. Replacement of Outdoor P.C. Boards

Procedures for replacing outdoor P.C. boards.

13-2-1. List of service P.C. boards

List of available service P.C. boards.

13-2-2. Configuration of inverter assembly

Diagram showing the configuration of the inverter assembly.

13-2-3. Interface board (MCC-1606) replacement method

Method for replacing the interface board.

13-2-4. Comp-IPDU P.C. Board (MCC-1596) Replacement Procedure

Procedure for replacing the Compressor IPDU P.C. board.

13-2-5. Fan IPDU P.C. Board (MCC-1610) Replacement Procedure

Procedure for replacing the Fan IPDU P.C. board.

13-2-6. Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure

Procedure for replacing the noise filter P.C. board.

14 EXPLODED DIAGRAM/PARTS LIST

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