Toshiba MMY-MAP1604T8-SG User Manual

AIR CONDITIONER (MULTI TYPE)
SERVICE MANUAL
FILE No. A10-005
This service manual provides relevant explanations about new outdoor unit (SMMS-i). Please refer to
the following service manuals for each indoor units.
Outdoor Unit
<SUPER MODULAR MULTI SYSTEM-i>
Model name:
<Heat Pump Model>
<Cooling Only Model>
4-way Air Discharge Cassette Type
(MMU-AP 2H)
A08-004
Compact 4-way Cassette (600 × 600) Type
(MMU-AP 1MH)
A06-002
1-way Air Discharge Cassette Type SH (2 series)
(MMU-AP 2SH)
A05-007
2-way Air Discharge Cassette Type (2 series)
(MMU-AP 2WH)
A10-007
Slim Duct Type
(MMD-AP 1SPH)
A05-007
Fresh Air Intake Indoor Unit Type
(MMD-AP 1HFE)
A06-016
High-wall Type (2 series)
(MMK-AP 2H)
A05-005
High-wall Type (3 series)
(MMK-AP 3H)
SVM-09059
Other indoor units SMMS (1 series) A03-009, A03-010
MMY-MAP0804HT8(Z)(ZG)-E
MMY-MAP1004HT8(Z)(ZG)-E
MMY-MAP1204HT8(Z)(ZG)-E
MMY-MAP1404HT8(Z)(ZG)-E
MMY-MAP1604HT8(Z)(ZG)-E
MMY-MAP0804HT8(Z)(ZG)-TR
MMY-MAP1004HT8(Z)(ZG)-TR
MMY-MAP1204HT8(Z)(ZG)-TR
MMY-MAP1404HT8(Z)(ZG)-TR
MMY-MAP1604HT8(Z)(ZG)-TR
MMY-MAP0804HT8(Z)(ZG)
MMY-MAP1004HT8(Z)(ZG)
MMY-MAP1204HT8(Z)(ZG)
MMY-MAP1404HT8(Z)(ZG)
MMY-MAP1604HT8(Z)(ZG)
MMY-MAP0804HT7(Z)(ZG)
MMY-MAP1004HT7(Z)(ZG)
MMY-MAP1204HT7(Z)(ZG)
MMY-MAP1404HT7(Z)(ZG)
MMY-MAP1604HT7(Z)(ZG)
MMY-MAP0804T8(Z)(ZG)-E
MMY-MAP1004T8(Z)(ZG)-E
MMY-MAP1204T8(Z)(ZG)-E
MMY-MAP1404T8(Z)(ZG)-E
MMY-MAP1604T8(Z)(ZG)-E
MMY-MAP0804T8(Z)(ZG)
MMY-MAP1004T8(Z)(ZG)
MMY-MAP1204T8(Z)(ZG)
MMY-MAP1404T8(Z)(ZG)
MMY-MAP1604T8(Z)(ZG)
MMY-MAP0804T8-SG
MMY-MAP1004T8-SG
MMY-MAP1204T8-SG
MMY-MAP1404T8-SG
MMY-MAP1604T8-SG

Toshiba MMY-MAP1604T8-SG Specifications

General

Brand	Toshiba
Model	MMY-MAP1604T8-SG
Category	Air Conditioner
Language	English

Summary

Wiring Diagrams

1-1. Outdoor Unit

Provides wiring diagrams for the outdoor unit.

1-2. Indoor Unit

Details wiring diagrams for various types of indoor units.

Parts Rating

2-1. Outdoor Unit (50Hz model: MMY-MAP***4HT8-E, MAP4HT8-TR, MAP4HT8, MAP4T8-SG)

Lists parts rating for 50Hz outdoor units including Heat Pump and Cooling Only models.

2-2. Outdoor Unit (60Hz model: MMY-MAP4HT7)

Lists parts rating for 60Hz outdoor units.

2-3. Outdoor Inverter (50Hz model: MMY-MAP4HT8-E, MAP4HT8-TR, MAP4HT8, MAP4T8-SG)

Lists parts rating for 50Hz outdoor inverter units.

2-4. Outdoor Inverter (60Hz model: MMY-MAP4HT7)

Lists parts rating for 60Hz outdoor inverter units.

2-5. Indoor Unit

Lists parts rating for various indoor unit types.

2-6. Parts Layout in Outdoor Unit

Diagrams showing the layout of parts within the outdoor unit.

2-7. Parts Layout in Inverter Assembly

Diagrams showing the layout of parts within the inverter assembly.

2-8. Outdoor (Inverter) Print Circuit Board

Identification and layout of print circuit boards in the outdoor inverter unit.

Refrigerant Piping Systematic Drawing

Combined Refrigerant Piping System Schematic Diagrams

Control Outline

6 Applied Control and Functions (including Circuit Configuration)

Details on applied control functions and circuit configurations for indoor and outdoor units.

6-1. Indoor Controller Block Diagram

6-1-1. When Main (Sub) Remote Controller Connected

Block diagram for indoor unit when main/sub remote controller is connected.

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

Block diagram for indoor unit when wireless remote controller kit is connected.

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

Block diagram for indoor unit with both wired and wireless controllers connected.

6-2. Indoor Printed Circuit Board

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

6-4. Test Operation of Indoor Unit

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

6-6. Applied Control of Indoor Unit

6-7. Applied control for Outdoor Unit

6-7-1. Outdoor Fan High Static Pressure Shift

Procedure for adjusting outdoor fan speed for high static pressure applications.

6-7-2. Priority Operation Mode Setting

Settings for switching between priority cooling and priority heating modes.

6-8. Applied Control of Outdoor Unit

6-8-1. Power peak-cut Control (Standard)

Standard procedure for limiting peak capacity of the outdoor unit.

6-8-2. Power peak-cut Control (Extended)

Extended procedure for limiting peak capacity of the outdoor unit.

6-8-3. Snowfall Fan Control

Function to control outdoor unit fan during snowfall.

6-8-4. External master ON/OFF Control

Function to start/stop the system from the outdoor unit.

6-8-5. Night operation (sound reduction) Control

Function to decrease noise levels during night or other specific times.

6-8-6. Operation Mode Selection Control

Control for selecting operation modes imposed on indoor units.

6-8-7. Error/Operation Output

Output signals for in-operation status and errors.

6-8-8. Compressor Operation Output

Output signals indicating compressor operation status.

6-8-9. Operating Rate Output

Output signals indicating the system's operation rate.

TEST OPERATION

7-1. Procedure and Summary of Test Operation

Overview and step-by-step procedure for executing a test operation.

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

Essential checks to perform on wiring and installation before powering the system on.

7-3. Check at Main Power-on

Checks to perform on indoor and outdoor units after main power is turned on.

7-4. Address Setup

Procedure for setting system addresses for indoor and outdoor units.

Troubleshooting in Test Operation

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

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

7-5-2. Operation from the indoor remote controller is not accepted, and a check code is displayed on the 7-segment display of the interface PC board of the header unit.

Troubleshooting when operation is not accepted and a check code is shown on the header unit's 7-segment display.

7-5-3. There is no display of a check code on the 7-segment display on the interface PC board of the header unit, although there is indoor unit that is not accepting operation from the indoor remote controller.

Troubleshooting when no check code is displayed, but indoor units are unresponsive.

7-5-4. In checking the number of connected outdoor units and connected indoor units after address setup, a lower number of connected units is displayed. (There are outdoor/indoor units that do not operate in a test operation.)

Troubleshooting when the number of detected units is lower than expected after address setup.

Test Operation Check

7-6-1. Fan Check

Procedure for checking the fan operation of indoor units.

7-6-2. Cooling/Heating Test Operation Check

Procedure for checking cooling and heating test operations on indoor and outdoor units.

Service Support Function

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

Function to check for misconnections in refrigerant and control lines.

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

Function to start or stop indoor units collectively or individually from outdoor unit switches.

7-7-3. Error Clearing Function

Procedures for clearing errors from the remote controller or via interface board switches.

7-7-4. Remote Controller Distinction Function

Function to distinguish connected remote controllers for refrigerant circuit systems.

7-7-5. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit

Function to force open or close indoor PMV for 2 minutes using interface board switches.

7-7-6. Pulse Motor Valve (PMV) Forced Open Fully/Close fully Function in Outdoor Unit

Function to force open or close PMV1, PMV2, PMV4 in outdoor units for 2 minutes.

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

Function to force open or close each solenoid valve in the outdoor unit for checking.

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

Function to check outdoor fan operation and control fan speed.

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

Function to discriminate abnormal outdoor units by forcing fan operation.

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

Function to manually fix the TO sensor value when the unit stops abnormally.

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

Function to monitor sensor temperature or operation status via remote controller.

TROUBLESHOOTING

8-1. Overview

General introduction to troubleshooting procedures and required tools.

8-2. Troubleshooting Method

Method for identifying faults based on check codes displayed on various devices.

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

Troubleshooting guide based on information displayed on the remote controller.

8-4. Check Codes Displayed on Remote Controller and SMMS-i Outdoor Unit (7-Segment Display on I/F Board) and Locations to Be Checked

List of check codes and their corresponding locations for troubleshooting.

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 operational status.

8-7. Oil Level Judgment Display

Display and interpretation of current compressor oil level judgment results.

8-8. Leakage/Clogging of Refrigerating Cycle Circuit

List of check codes for leakage or clogging in the refrigerating cycle or oil circuit.

8-9. Sensor Characteristics

Graphs and tables showing sensor resistance characteristics.

8-10. Pressure Sensor Output Check

Procedure for checking the output voltage of Pd and Ps pressure sensors.

BACKUP OPERATION (EMERGENCY OPERATION)

9-1. Note for Backup Operation

Important notes regarding backup operation methods based on fault contents.

9-2. Compressor Backup Operation Setting

Procedure for setting compressor backup operation when a compressor fails.

9-3. Outdoor Unit Backup Operation Setting

Procedure for setting outdoor unit backup operation in multi-unit systems.

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

Procedure for backup operation specifically for cooling-season failures.

OUTDOOR UNIT REFRIGERANT RECOVERY METHOD

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

Procedure for recovering refrigerant from a failed outdoor unit using pump-down.

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

Procedure to operate the system by adjusting refrigerant amount after recovery.

10-3. Work procedure after Repair

Procedure to follow after completing repair work and vacuuming.

REPLACING COMPRESSORS

11-1. Compressor Replacement Procedure (Outline)

General outline for replacing a compressor.

11-2. Replacement of Compressors

Detailed procedures for replacing compressors, including oil adjustment.

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

Procedure to diagnose causes of compressor oil shortage.

P.C. BOARD EXCHANGE PROCEDURES

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

Procedures for replacing indoor unit P.C. boards, including EEPROM handling.

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

List of service P.C. boards and their configurations for outdoor units.

EXPLODED DIAGRAM/PARTS PRICE LIST

SMMS-i OUTDOOR UNIT MMY-MAP0804HT8(Z)(ZG)-E, MMY-MAP1004HT8(Z)(ZG)-E, MMY-MAP1204HT8(Z)(ZG)-E

Exploded view and parts list for SMMS-i outdoor units (MAP0804, MAP1004, MAP1204) -E models.

SMMS-i INV SERVICE PARTS LIST MMY-MAP0804HT8(Z)(ZG)-E, MMY-MAP1004HT8(Z)(ZG)-E, MMY-MAP1204HT8(Z)(ZG)-E

Service parts list for SMMS-i outdoor units (MAP0804, MAP1004, MAP1204) -E models.

SMMS-i OUTDOOR UNIT MMY-MAP1404T8(Z)(ZG)-E, MMY-MAP1604T8(Z)(ZG)-E

Exploded view and parts list for SMMS-i outdoor units (MAP1404, MAP1604) -E models.

SMMS-i INV SERVICE PARTS LIST MMY-MAP1404T8(Z)(ZG)-E, MMY-MAP1604T8(Z)(ZG)-E

Service parts list for SMMS-i outdoor units (MAP1404, MAP1604) -E models.

SMMS-i OUTDOOR UNIT MMY-MAP1404HT7(Z)(ZG), MMY-MAP1604HT7(Z)(ZG)

Exploded view and parts list for SMMS-i outdoor units (MAP1404, MAP1604) -T7 models.

SMMS-i INV SERVICE PARTS LIST MMY-MAP1404HT7(Z)(ZG), MMY-MAP1604HT7(Z)(ZG)

Service parts list for SMMS-i outdoor units (MAP1404, MAP1604) -T7 models.

SMMS-i OUTDOOR UNIT MMY-MAP0804T8-SG, MMY-MAP1004T8-SG, MMY-MAP1204T8-SG

Exploded view and parts list for SMMS-i outdoor units (MAP0804, MAP1004, MAP1204) -SG models.

SMMS-i INV SERVICE PARTS LIST MMY-MAP0804T8-SG, MMY-MAP1004T8-SG, MMY-MAP1204T8-SG

Service parts list for SMMS-i outdoor units (MAP0804, MAP1004, MAP1204) -SG models.

SMMS-i OUTDOOR UNIT MMY-MAP1404HT8(Z)(ZG)-TR, MMY-MAP1604HT8(Z)(ZG)-TR

Exploded view and parts list for SMMS-i outdoor units (MAP1404, MAP1604) -TR models.

SMMS-i INV SERVICE PARTS LIST MMY-MAP1404HT8(Z)(ZG)-TR, MMY-MAP1604HT8(Z)(ZG)-TR

Service parts list for SMMS-i outdoor units (MAP1404, MAP1604) -TR models.

SMMS-i OUTDOOR UNIT MMY-MAP1404HT7(Z)(ZG), MMY-MAP1604HT7(Z)(ZG)

Exploded view and parts list for SMMS-i outdoor units (MAP1404, MAP1604) -T7 models.

SMMS-i INV SERVICE PARTS LIST MMY-MAP1404HT7(Z)(ZG), MMY-MAP1604HT7(Z)(ZG)

Service parts list for SMMS-i outdoor units (MAP1404, MAP1604) -T7 models.