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MMY-MAP0804T8P-T
Toshiba MMY-MAP0804T8P-T User Manual
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– 30 –
1-2-7.
Concealed Duct Standard Type 6 series
Models : MMD-AP0076BH
∗
, AP0096BH
∗
, AP0126BH
∗
, AP0156BH
∗
, AP0186BH
∗
, AP0246BH
∗
,
AP0276BH
∗
, AP0306BH
∗
, AP0366BH
∗
, AP0486BH
∗
, AP0566BH
∗
30
32
Table of Contents
Default Chapter
1
Default Chapter
1
Service Manual
1
Table of Contents
2
Safety Caution
6
Warning Indications on the Air Conditioner Unit
8
Precautions for Safety
9
Declaration of Conformity
14
Carrying in the Outdoor Unit
16
Adding Refrigerant
19
New Refrigerant (R410A)
21
1 Wiring Diagrams
23
Outdoor Unit
23
Indoor Unit
25
4-Way Cassette Type
25
Compact 4-Way Cassette Type
26
1-Way Cassette Type (Compact Type)
27
1-Way Cassette Type SH Series
28
2-Way Cassette Type 2 Series
29
Concealed Duct Standard Type
30
Concealed Duct Standard Type 6 Series
31
Concealed Duct High Static Pressure Type
32
Slim Duct Type
34
Slim Duct Type (AP024, AP027)
35
Ceiling Type
36
High Wall Type 4MH Series
37
High Wall Type 3 Series
38
Floor Standing Cabinet Type
39
Floor Standing Concealed Type
40
Floor Standing Type
41
Air to Air Heat Exchanger with DX Coil Unit
42
Fresh Air Intake Indoor Unit
46
2 Parts Rating
48
Outdoor Unit (50Hz Model: MMY-MAP *** 4 * T8 * P * )
48
Outdoor Unit (60Hz Model: MMY-MAP *** 4HT7 * P)
49
Outdoor Inverter (50Hz Model: MMY-MAP *** 4 * T8 * P * )
50
Outdoor Inverter (60Hz Model: MMY-MAP *** 4HT7 * P)
51
Parts Layout in Outdoor Unit
52
Parts Layout in Inverter Assembly
54
Outdoor (Inverter) Print Circuit Board
56
Interface P.C. Board (MCC-1606)
56
Inverter P.C. Board for Compressor (MCC-1596) A3-IPDU
57
Inverter P.C. Board for Fan (MCC-1610)
58
3 Refrigerant Piping Systematic Drawing
59
Indoor Unit
62
4 Combined Refrigerant Piping System Schematic Diagrams
63
Normal Operation (COOL Mode / DEFROST Mode)
63
High Outside Air Temperature (Roughly 20°C or Above)
63
Normal Operation (COOL Mode) - Low Outside Air Temperature (Roughly below 20°C)
64
Normal Operation (HEAT Mode)
65
Emergency Operation (Cooling Operation under Header Outdoor Unit Backup Scenario)
66
Emergency Operation (Heating Operation under Header Outdoor Unit Backup Scenario)
67
Refrigerant Recovery from Failed Outdoor Unit (Pump-Down Operation under Follower Outdoor Unit Backup Scenario)
68
5 Control Outline
69
6 Applied Control and Functions (Including Circuit Configuration)
84
Indoor Controller Block Diagram
84
When Wired (Simple) Remote Controller Connected
84
When Wireless Remote Controller Kit Connected
87
When both Main (Sub) Remote Controller and Wireless Remote Controller
90
Kit Connected
90
Indoor Printed Circuit Board
93
Optional Connector Specifications of Indoor P.C. Board
96
Test Operation of Indoor Unit
97
Method to Set Indoor Unit Function DN Code
98
Applied Control of Indoor Unit
102
Applied Control for Outdoor Unit
105
Outdoor Fan High Static Pressure Shift
105
Priority Operation Mode Setting
106
Applied Control of Outdoor Unit
108
Power Peak-Cut Control (Standard)
109
Power Peak-Cut Control (Extended)
110
External Master ON/OFF Control
111
Snowfall Fan Control
111
Night Operation (Sound Reduction) Control
112
Operation Mode Selection Control
113
Error/Operation Output
114
Compressor Operation Output
115
Operating Rate Output
116
7 Test Operation
117
Procedure and Summary of Test Operation
117
Check Items before Test Operation (before Powering-On)
118
Check at Main Power-On
122
Address Setup
123
Precautions
123
Address Setup and Check Procedure
123
Address Setup Procedure
124
Check after Address Setup When Central Control System Is Connected
137
Troubleshooting in Test Operation
138
A Check Code Is Displayed on the Remote Controller
138
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
139
PC Board of the Header Unit, Although There Is Indoor Unit that Is Not Accepting Operation from the Indoor Remote Controller
139
There Is no Display of a Check Code on the 7-Segment Display on the Interface
139
After Address Setup, a Lower Number of Connected Units Is Displayed. (There Are Outdoor/Indoor Units that Do Not Operate in a Test Operation.)
140
In Checking the Number of Connected Outdoor Units and Connected Indoor Units
140
Outdoor/Indoor Units that Do Not Operate in a Test Operation.)
140
Test Operation Check
142
Fan Check
142
Single Cooling/Single Heating Test Operation Check
143
Service Support Function
147
Check Function for Connecting of Refrigerant and Control Lines
147
Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit
149
Error Clearing Function
154
Remote Controller Distinction Function
156
Pulse Motor Valve (PMV) Forced Open Fully/Close Fully Function in Outdoor Unit
157
Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit
157
Solenoid Valve Forced Open/Close Function in Outdoor Unit
158
Fan Operation Check in Outdoor Unit
159
Abnormal Outdoor Unit Discrimination Method by Fan Operating Function
160
Manual Adjustment Function of Outside Temperature (TO) Sensor
161
Monitor Function of Remote Controller Switch
163
8 Troubleshooting
165
Overview
165
Troubleshooting Method
166
Troubleshooting Based on Information Displayed on Remote Controller
172
Check Codes Displayed on Remote Controller and SMMS-I Outdoor Unit (7-Segment Display on I/F Board) and Locations to be Checked
177
Errors Detected by Tcc-Link Central Control Device
191
Diagnosis Procedure for each Check Code
193
7-Segment Display Function
224
Oil Level Judgment Display
230
Leakage/Clogging of Refrigerating Cycle Circuit
231
Sensor Characteristics
235
Pressure Sensor Output Check
238
9 Backup Operation
240
(Emergency Operation)
240
Note for Backup Operation
240
Compressor Backup Operation Setting
241
Outdoor Unit Backup Operation Setting
242
Follower Outdoor Unit Backup Operation Setting (Failure of Follower Outdoor Unit)
242
Header Outdoor Unit Backup Operation Setting (Failure of Header Outdoor Unit)
244
Cooling-Season Outdoor Unit Backup Operation Setting
246
10 Outdoor Unit Refrigerant Recovery Method
247
Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)
247
Note for Refrigerant Recovery Operation
247
Refrigerant Recovery Procedure a (Case of no Outdoor Unit Backup Operation Setting)
247
Refrigerant Recovery Procedure B (Case of Outdoor Unit Backup Operation Setting)
250
How to Operate System While Failed Outdoor Unit Being Repaired
252
Work Procedure after Repair
253
11 Replacing Compressors
254
Compressor Replacement Procedure (Outline)
254
Replacement of Compressors
255
Check Procedure to Search Cause of Compressor Oil Shortage
259
12 Outdoor Unit Parts Replacement Methods
262
13 C. Board Exchange Procedures
275
Replacement of Indoor P.C. Boards
275
And the Remote Controller
278
Replacement of Outdoor P.C. Boards
282
List of Service P.C. Boards
282
Configuration of Inverter Assembly
282
Interface Board (MCC-1606) Replacement Method
283
Comp-IPDU P.C. Board (MCC-1596) Replacement Procedure
284
Fan IPDU P.C. Board (MCC-1610) Replacement Procedure
286
Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure
287
14 Exploded Diagram/Parts List
290
4
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Toshiba MMY-MAP0804T8P-T Specifications
General
Brand
Toshiba
Model
MMY-MAP0804T8P-T
Category
Air Conditioner
Language
English
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