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Air Conditioner
MMY-MAP0804FT8(ZG)-E
Page 25 (Indoor Unit)
Toshiba MMY-MAP0804FT8(ZG)-E - Indoor Unit; 4-Way Cassette Type
333 pages
Manual
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– 25 –
1-2.
Indoor Unit
1-2-1.
4-way Cassette
T
ype
Models: MMU-AP0092H, AP0122H, AP0152H, AP0182H, AP0242H, AP0272H, AP0302H,
AP0362H, AP0482H, and AP0562H
AMP Air Conditioning
www.ampair.co.uk | sales@ampair.co.uk
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26
Table of Contents
Main Page
Default Chapter
1
Service Manual
1
Table of Contents
2
Original Instruction
5
Warning Indications on the Air Conditioner Unit
7
Precautions for Safety
8
Declaration of Conformity
13
Specifications
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 Air Discharge Cassette Type
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
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
Flow Selector Unit
46
2 Parts Rating
48
Outdoor Unit (50Hz Model: MMY-MAP ∗∗∗ 4FT8-E, MAP ∗∗∗ 4FT8-TR, MAP ∗∗∗ 4FT8)
48
4Ft8-E,Map 4Ft8-Tr, Map 4Ft8)
48
Outdoor Unit (60Hz Model: MMY-MAP ∗∗∗ 4FT7)
49
Outdoor Inverter
50
Outdoor Inverter (50Hz Model: MMY-MAP MAP ∗∗∗ 4FT8)
50
4Ft8-E, Map 4Ft8-Tr, Map 4Ft8)
50
Outdoor Inverter (60Hz Model: MMY-MAP ∗∗∗ 4FT7)
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
Operation Mode
63
4 System Refrigeerant Piping Schematic Diagrams
64
Single Cooling Mode (Operation of Cooling Only) When Outside Temperature Is High
65
(Standard: 10°C or Higher) / Defrost Mode
65
Single Cooling Mode (Operation of Cooling Only) When Outside Temperature Is Low
66
(Standard: 10°C or Lower)
66
Single Heating Mode (Operation of Heating Only)
67
Collective Cooling Mode (Operating Cooling Function Mainly, Collective Operation of Cooling and Heating Operation)
68
Collective Heating Mode (Operating Heating Function Mainly, Collective Operation of Cooling and Heating Operation)
69
Emergency Operation (Single Cooling Operation at Backup of the Center Unit)
70
Emergency Operation (Single Heating Operation at Backup of the Center Unit)
71
Refrigerant Recovery (During Pump-Down Operation) of the Troubled Outdoor Unit)
72
Case of Trouble of Terminal Unit)
72
5 Control Outline
73
Indoor Unit
73
Outdoor Unit
79
6 Applied Control and Functions (Including Circuit Configuration)
87
Indoor Controller Block Diagram
87
When Main (Sub) Remote Controller Connected
87
When Wireless Remote Controller Kit Connected
90
When both Main (Sub) Remote Controller and Wireless Remote Controller Kit
93
Connected
93
Indoor Printed Circuit Board
96
Optional Connector Specifications of Indoor P.C. Board
99
Test Operation of Indoor Unit
100
Method to Set Indoor Unit Function DN Code
101
Applied Control of Indoor Unit
106
Control System Using Remote Control Interface (TCB-IFCB4E2)
106
Ventilating Fan Control from Remote Controller
107
Leaving-ON Prevention Control
108
Applied Control for Outdoor Unit
109
Outdoor Fan High Static Pressure Shift
109
Applied Control of Outdoor Unit
110
Power Peak-Cut Control (Standard)
111
Power Peak-Cut Control (Extended)
112
Snowfall Fan Control
113
External Master ON/OFF Control
113
Night Operation (Sound Reduction) Control
114
Operation Mode Selection Control
115
Error/Operation Output
116
Compressor Operation Output
117
Operating Rate Output
118
7 Test Operation
119
Procedure and Summary of Test Operation
119
Check Items before Test Operation (before Poweringon)
120
Check at Main Power-On
125
Address Setup
126
Precautions
126
Address Setup and Check Procedure
126
Address Setup Procedure
127
Check after Address Setup When Central Control System Is Connected
140
Setting When Connecting Multiple Indoor Units to a FS (Flow Selector) Unit
141
How to Set up the Cooling Only Indoor Unit
142
Troubleshooting in Test Operation
143
A Check Code Is Displayed on the Remote Controller
143
Operation from the Indoor Remote Controller Is Not Accepted, and a Check Code Is
144
Displayed on the 7-Segment Display of the Interface PC Board of the Header Unit
144
There Is no Display of a Check Code on the 7-Segment Display on the Interface PC
144
From the Indoor Remote Controller
144
In Checking the Number of Connected Outdoor Units and Connected Indoor Units after
145
Address Setup, a Lower Number of Connected Units Is Displayed
145
Indoor Units that Do Not Operate in a Test Operation.)
145
Test Operation Check
147
Fan Check
147
Cooling/Heating Test Operation Check
148
Service Support Function
152
Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit
152
Operation Procedure
153
Error Clearing Function
158
Remote Controller Distinction Function
160
Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit
161
Pulse Motor Valve (PMV) Forced Open Fully/Close Fully Function in Outdoor Unit
161
Solenoid Valve Forced Open/Close Function in Outdoor Unit
162
Fan Operation Check in Outdoor Unit
163
Abnormal Outdoor Unit Discrimination Method by Fan Operating Function
164
Manual Adjustment Function of Outside Temperature (TO) Sensor
165
Monitor Function of Remote Controller Switch
167
8 Troubleshooting
169
Overview
169
Troubleshooting Method
170
Troubleshooting Based on Information Displayed on Remote Controller
175
Check Codes Displayed on Remote Controller and SMMS-I Outdoor Unit (7-Segment Display on I/F Board) and Locations to be Checked
180
Diagnosis Procedure for each Check Code
195
7-Segment Display Function
225
Oil Level Judgment Display
231
Leakage/Clogging of Refrigerating Cycle Circuit
235
Flow Selector Unit (FS Unit)
239
Troubleshooting When Multiple Indoor Units Are Connected to Cool/Heat FS Unit
242
Sensor Characteristics
243
Pressure Sensor Output Check
246
9 Backup Operation (Emergency Operation)
248
Note for Backup Operation
248
Compressor Backup Operation Setting
249
Outdoor Unit Backup Operation Setting
250
10 Outdoor Unit Refrigerant Recovery Method
251
Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)
251
Note for Refrigerant Recovery Operation
251
Refrigerant Recovery Procedure a (Case of no Outdoor Unit Backup Operation Setting)
251
How to Operate System While Failed Outdoor Unit Being Repaired
255
Work Procedure after Repair
256
11 Replacing Compressors
257
Compressor Replacement Procedure (Outline)
257
Replacement of Compressors
258
Check Procedure to Search Cause of Compressor Oil Shortage
262
12 Outdoor Unit Parts Replacement Methods
264
13 Board Exchange Procedures
277
Replacement of Indoor P.C. Boards
277
Replacement of Outdoor P.C. Boards
285
List of Service P.C. Boards
285
Configuration of Inverter Assembly
285
Interface Board (MCC-1606) Replacement Method
286
Comp-IPDU P.C. Board (MCC-1596) Replacement Procedure
287
Fan IPDU P.C. Board (MCC-1610) Replacement Procedure
289
Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure
290
14 Exploded Diagram/Parts List
293
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