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Toshiba MMY-MAP1004HT7P-K1 User Manual

Toshiba MMY-MAP1004HT7P-K1
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SERVICE MANUAL
AIR-CONDITIONER (MULTI TYPE)
<SUPER MODULAR MULTI SYSTEM - i>
Outdoor Unit
Model name:
FILE NO. SVM-13024-8
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
This service manual provides relevant explanations about new outdoor unit (SMMS-i).
Please refer to the following service manuals for each indoor units.
MMY-MAP0804HT7P-K
MMY-MAP1004HT7P-K
MMY-MAP1004HT7P-K1
MMY-MAP1204HT7P-K
MMY-MAP1404HT7P-K
MMY-MAP1604HT7P-K
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-MAP0804T8P-SG
MMY-MAP1004T8P-SG
MMY-MAP1204T8P-SG
MMY-MAP1404T8P-SG
MMY-MAP1604T8P-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
MMY-MAP0804T8(J)P-E
MMY-MAP1004T8(J)P-E
MMY-MAP1204T8(J)P-E
MMY-MAP1404T8(J)P-E
MMY-MAP1604T8(J)P-E

Table of Contents

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Toshiba MMY-MAP1004HT7P-K1 Specifications

General IconGeneral
BrandToshiba
ModelMMY-MAP1004HT7P-K1
CategoryAir Conditioner
LanguageEnglish

Summary

SERVICE MANUAL

Outdoor Unit

Details about the SMMS-i outdoor unit and related indoor units.

Original instruction

Definition of Qualified Installer or Qualified Service Person

Requirements for personnel performing installation, maintenance, and repair.

Definition of Protective Gear

Explanation of indications

Clarifies the meaning of danger, warning, and caution symbols.

Warning Indications on the Air Conditioner Unit

Warning indications

Explains hazards like electrical shock, moving parts, and high temperatures.

Precautions for Safety

DANGER

Emphasizes immediate dangers from incorrect electrical work and contact with interior parts.

Declaration of Conformity

Specifications

Sound power level

Provides sound power levels in dBA for cooling and heating modes.

Carrying in the Outdoor Unit

CAUTION

Advises careful handling when using forklifts or ropes for lifting and transport.

Weight centre and weight

Selection of Pipe Size

Screw size and tightening torque

Specifies screw sizes and tightening torques for terminals.

Adding refrigerant

New Refrigerant (R410A)

Safety Caution Concerned to New Refrigerant

Highlights safety precautions due to R410A's high pressure and potential mixing issues.

Cautions on Installation/Service

Provides critical advice on mixing refrigerants, pipe thickness, and charging methods.

1 Wiring Diagrams

1-1. Outdoor Unit

Provides wiring diagrams for outdoor units MMY-MAP0804, MAP1004, and MAP1204.

1-2. Indoor Unit

Details wiring for different types of indoor units, starting with 4-way cassette.

2 Parts Rating

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

Lists parts and specifications for 50Hz outdoor units.

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

Lists parts and specifications for 60Hz outdoor units.

2-3. Outdoor Inverter (50Hz model: MMY-MAP***4HT8-E, MAP4HT8-TR, MAP4HT8, MAP4T8-SG)

Lists parts and specifications for 50Hz outdoor inverter units.

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

Lists parts and specifications for 60Hz outdoor inverter units.

2-5. Indoor Unit

Lists parts for 4-way Air Discharge Cassette and Compact 4-way Air Discharge Cassette types.

2-6. Parts Layout in Outdoor Unit

Illustrates the layout of parts in the outdoor unit for 8, 10, 12 HP models.

2-7. Parts Layout in Inverter Assembly

Shows the layout of components within the inverter assembly for 8, 10, 12 HP outdoor units.

2-8. Outdoor (Inverter) Print Circuit Board

Lists and describes interface P.C. boards like MCC-1606.

3 Refrigerant Piping Systematic Drawing

Outdoor Unit (8, 10, 12HP)

Illustrates the refrigerant piping system for 8, 10, and 12 HP outdoor units.

4 Combined Refrigerant Piping System Schematic Diagrams

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

Details refrigerant flow in COOL/DEFROST modes with high ambient temperature.

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

Details refrigerant flow in COOL mode with low ambient temperature.

4-3. Normal Operation (HEAT Mode)

Details refrigerant flow in HEAT mode.

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

Details refrigerant flow during emergency cooling with header unit backup.

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

Details refrigerant flow during emergency heating with header unit backup.

5 Control Outline

Indoor Unit

Outlines control specifications for indoor units.

Outdoor Unit

Control functions specific to outdoor units.

6 Applied Control and Functions (including Circuit Configuration)

6-1. Indoor Controller Block Diagram

Shows the block diagram of the indoor controller for units with main remote controllers.

6-2. Indoor Printed Circuit Board

Identifies components and connectors on the MCC-1570 P.C. board.

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

Lists DN codes, their descriptions, setting data, and factory-set values.

6-4. Test Operation of Indoor Unit

Explains how to check fan, louver, and PMV functions independently.

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

Step-by-step guide to setting DN codes using the remote controller.

6-6. Applied Control of Indoor Unit

Details wiring and setting procedures for remote control interface.

6-7. Applied control for Outdoor Unit

Details how to increase outdoor fan speed for duct installation with high external static pressure.

6-8. Applied Control of Outdoor Unit

Explains how to limit peak power using standard and extended methods.

7 TEST OPERATION

7-1. Procedure and Summary of Test Operation

Outlines the sequence of checks before and during test operation.

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

Lists critical checks for electric wiring and system connections before test operation.

Check the additional amount of refrigerant

Provides formulas and tables for calculating additional refrigerant based on pipe length and system horsepower.

7-3. Check at Main Power-on

Details checks for the outdoor unit's 7-segment display and indoor unit remote controller status.

7-4. Address Setup

Highlights precautions regarding address setup procedures and timing.

7-6. Test Operation Check

Steps to check indoor unit fan discharge and sound during test operation.

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

Details test operation procedures using both wired and wireless remote controllers.

7-7. Service Support Function

Explains how to check for misconnections using interface P.C. board switches.

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

Details functions like cooling/heating test, batch start/stop, and individual unit control.

7-7-3. Error Clearing Function

Explains error clearing for outdoor units using the remote controller's service monitor.

7-7-4. Remote Controller Distinction Function

Explains how to identify the connected remote controller using switches on the header unit interface P.C. board.

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

Details forced open/close function for indoor unit PMVs using interface board switches.

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

Explains forced full open/close function for outdoor unit PMV1, PMV2, and PMV4.

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

Details forced open/close function for outdoor unit solenoid valves using interface board switches.

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

Explains how to check fan operation and control fan speed using interface P.C. board switches.

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

Details forced fan operation for erroneous or normal outdoor units to identify faults.

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

Explains how to manually set the TO sensor value for emergent operation due to sensor failure.

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

Describes how to use the service monitor mode to check sensor temperatures and operation status.

8 TROUBLESHOOTING

8-1. Overview

Provides an overview of troubleshooting steps, required tools, and initial checks.

8-2. Troubleshooting Method

Lists indoor unit check codes, receiving unit display, fault site, and error descriptions.

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

Explains how to check and access error history using the main 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

Correlates check codes from remote controllers and outdoor units with specific locations for inspection.

8-5. Diagnosis procedure for each check code

Provides troubleshooting flowcharts for various check codes.

9 BACKUP OPERATION (EMERGENCY OPERATION)

9-1. Note for Backup Operation

Provides guidelines on compressor backup and outdoor unit backup operations based on fault types.

9-2. Compressor Backup Operation Setting

Details how to set up compressor backup operation by adjusting DIP switches on SW06.

9-3. Outdoor Unit Backup Operation Setting

Outlines the procedure for setting up backup operation for a failed follower outdoor unit.

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

Explains how to perform backup operation specifically for cooling seasons.

10 OUTDOOR UNIT REFRIGERANT RECOVERY METHOD

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

Explains refrigerant recovery from a failed outdoor unit using pump-down.

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

Explains system operation adjustments when an outdoor unit is under repair.

10-3. Work procedure after Repair

Details the work procedure after repair, including vacuuming and refrigerant charging.

11 REPLACING COMPRESSORS

11-1. Compressor Replacement Procedure (Outline)

Provides an outline for the compressor replacement procedure.

11-2. Replacement of Compressors

Explains checking oil color, determining quantities, and adjusting oil for new compressors.

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

Outlines checks for balance pipes, sensor connections, characteristics, and oil circuits.

12 OUTDOOR UNIT PARTS REPLACEMENT METHODS

No. Part to be replaced

Details the detachment and attachment procedure for the propeller fan.

No. Part to be replaced

Details the detachment and attachment procedure for the heat exchanger.

No. Part to be replaced

Details the detachment and attachment procedure for the inverter assembly.

No. Part to be replaced

Details the detachment and attachment procedure for the reactor assembly.

No. Part to be replaced

Shows locations for 2-way valve coils and pressure sensors in outdoor units.

No. Part to be replaced

Shows locations and identification colors for temperature sensors in outdoor units.

No. Part to be replaced

Shows locations for temperature sensors in outdoor units (continued).

No. Part to be replaced

Shows locations for pipe fixing rubber and SUS bands.

No. Part to be replaced

Details detachment and attachment of pipe fixing rubber.

No. Part to be replaced

Details detachment and attachment of the 4-way valve.

No. Part to be replaced

Details detachment and attachment of the 4-way valve (continued).

13 P.C. BOARD EXCHANGE PROCEDURES

Indoor Unit

Lists part codes, models, and P.C. board types for indoor units.

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

Lists the service P.C. boards used.

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

Details the replacement method for the MCC-1606 interface board, including dip switch settings.

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

Outlines the replacement procedure for the MCC-1596 compressor IPDU P.C. board.

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

Details the replacement procedure for the MCC-1610 fan IPDU P.C. board.

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

Explains the replacement procedure for the MCC-1608 A, B noise filter P.C. board.

14 EXPLODED DIAGRAM/PARTS PRICE LIST

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

Provides an exploded view of the SMMS-i outdoor unit for specific MMY-MAP models.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

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

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 models.

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

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

Lists service parts for SMMS-i INV units MMY-MAP1404, 1604 (TR models).

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

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

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 (7(Z)(ZG) models).

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

SMMS-i OUTDOOR UNIT MMY-MAP1404HT8(Z)(ZG), MMY-MAP1604T8(Z)(ZG)

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 models.

SMMS-i OUTDOOR UNIT MMY-MAP1404HT8(Z)(ZG), MMY-MAP1604T8(Z)(ZG)

Continues the exploded view of SMMS-i outdoor units for MMY-MAP1404 and 1604 models.

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

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

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 (7(Z)(ZG) models).

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

Continues the exploded view of SMMS-i outdoor units for MMY-MAP1404 and 1604 (7(Z)(ZG) models).

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

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

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 models.

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

Continues the exploded view of SMMS-i outdoor units for MMY-MAP1404 and 1604 models.

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

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

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 (7(Z)(ZG) models).

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

Continues the exploded view of SMMS-i outdoor units for MMY-MAP1404 and 1604 (7(Z)(ZG) models).

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

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

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 models.

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

Continues the exploded view of SMMS-i outdoor units for MMY-MAP1404 and 1604 models.

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

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

Lists service parts for SMMS-i INV units MMY-MAP1404, 1604 (7(Z)(ZG) models).

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

Continues service parts list for SMMS-i INV units MMY-MAP1404, 1604 (7(Z)(ZG) models).

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

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

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 models.

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

Continues the exploded view of SMMS-i outdoor units for MMY-MAP1404 and 1604 models.

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

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

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 (7(Z)(ZG) models).

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

Continues the exploded view of SMMS-i outdoor units for MMY-MAP1404 and 1604 (7(Z)(ZG) models).

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

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

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 models.

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

Continues the exploded view of SMMS-i outdoor units for MMY-MAP1404 and 1604 models.

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

Ref. No. Part No. Description

Lists parts with reference numbers, part numbers, descriptions, and quantities per set.

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

Lists service parts for SMMS-i INV units MMY-MAP1404, 1604 (7(Z)(ZG) models).

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

Continues service parts list for SMMS-i INV units MMY-MAP1404, 1604 (7(Z)(ZG) models).

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

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

Provides an exploded view of the SMMS-i outdoor unit for MMY-MAP1404 and 1604 models.

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

Continues the exploded view of SMMS-i outdoor units for MMY-MAP1404 and 1604 models.

REFRIGERATION CIRCUIT DIAGRAM

Illustrates the refrigerant circuit with components like compressors, valves, and sensors.

WARNINGS ON REFRIGERANT LEAKAGE

Check of Concentration Limit

Explains standards for minimum room volume and refrigerant concentration limits.

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