Toshiba MMY-AP1446FT2P-UL Manuals

Manuals and User Guides for Toshiba MMY-AP1446FT2P-UL. We have 1 Toshiba MMY-AP1446FT2P-UL manual available for free PDF download: Service Manual

Toshiba MMY-AP1446FT2P-UL Service Manual (287 pages)

Brand: Toshiba | Category: Air Conditioner | Size: 17.81 MB

Table of Contents
2
Precautions for Safety
6
Refrigerant (R410A)
13
Specifications
15
Wiring Diagrams
19
Outdoor Unit
19
Single Port FS Unit
20
Multi Port FS Unit
22
Single Port FS Unit (Long Piping Model)
25
Parts Rating
28
Outdoor Unit (208/230V Model: MMY-MAP0726FT2P-UL)
28
Outdoor Inverter (208/230V Model: MMY-MAP0726FT2P-UL)
29
Multi Port FS Unit (RBM-Y0611F4PUL, RBM-Y0611F6PUL)
30
Single Port FS Unit (Long Piping Model) (RBM-Y0384FUL, RBM-Y0614FUL, RBM-Y0964FUL)
30
Parts Layout in Outdoor Unit
31
Parts Layout in Inverter Assembly
32
Outdoor (Inverter) Print Circuit Board
33
Interface P.C. Board (MCC-1673)
33
Inverter P.C. Board for Compressor (MCC-1683) A3-IPDU
34
Inverter P.C. Board for Fan Motor (MCC-1610) FAN-IPDU
35
Noise Filer PC Board (MCC-1682 -A, -B,)
36
Refrigerant Piping Systematic Drawing
37
Combined Refrigerant Piping System Schematic Diagrams
42
All Cooling Mode (Operation of Cooling Only) When Outside Temperature Is High
42
(Standard: 90°F or Higher)
42
All Cooling Mode (Operation of Cooling Only) When Outside Temperature Is
43
(Standard: 50゜F ~ 90゜F) / Defrost Mode
43
All Cooling Mode (Operation of Cooling Only) When Outside Temperature Is Low
44
(Standard: 50°F or Lower)
44
All Heating Mode (Operation of Heating Only)
45
Mainly Cooling Mode
46
(Operating Cooling Function Mainly, Collective Operation of Cooling and Heating Operation)
46
Mainly Heating Mode
47
(Operating Heating Function Mainly, Collective Operation of Cooling and Heating Operation)
47
Emergency Operation (All Cooling Operation at Backup of the Header Unit)
48
Emergency Operation (All Heating Operation at Backup of the Header Unit)
49
Refrigerant Recovery (During Pump-Down Operation) of the Troubled Outdoor Unit) (in Case of Trouble of Follower Unit)
50
Control Outline
51
Indoor Unit
51
Outdoor Unit
57
Applied Control for Outdoor Unit
66
Outdoor Fan High Static Pressure Shift
66
Priority Operation Mode Setting
67
Applied Control of Outdoor Unit
69
Power Peak-Cut Control (Standard)
70
Power Peak-Cut Control (Extended)
71
Snowfall Fan Control
72
External Master ON/OFF Control
72
Night Operation (Sound Reduction) Control
73
Operation Mode Selection Control
74
Trouble/Operation Output
75
Compressor Operation Output
76
Operating Rate Output
77
Test Operation
78
Procedure and Summary of Test Operation
78
Check Items before Test Operation (before Powering-On)
79
Check at Main Power-On
83
Address Setup
84
Precautions
84
Address Setup and Check Procedure
84
Address Setup Procedure
85
Check after Address Setup When Central Control System Is Connected
98
Setting When Connecting Multiple Indoor Units to a FS (Flow Selector) Unit
99
How to Set up the Cooling Only Indoor Unit
104
Troubleshooting in Test Operation
105
A Check Code Is Displayed on the Remote Controller
105
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
106
Operation from the Indoor Remote Controller
106
Outdoor/Indoor Units that Do Not Operate in a Test Operation.)
107
Test Operation Check
109
Fan Check
109
Single Cooling/Single Heating Test Operation Check
110
Service Support Function
113
Check Function for Connecting of Refrigerant and Control Lines
113
Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit
116
Check Code Clearing Function
122
Remote Controller Distinction Function
124
Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit
125
Pulse Motor Valve (PMV) Forced Open Fully/Close Fully Function in Outdoor Unit
125
Solenoid Valve Forced Open/Close Function in Outdoor Unit
126
Fan Operation Check in Outdoor Unit
127
Abnormal Outdoor Unit Discrimination Method by Fan Operating Function
128
Manual Adjustment Function of Outside Temperature (TO) Sensor
129
Refrigerant Leakage Detection
131
Monitor Function of Remote Controller Switch
132
Smms Wave Tool for Smartphone
134
Prohibition/Permission of the NFC Setting
134
Confirmation for the Generation of the Trouble of the NFC
135
Troubleshooting
136
Overview
136
Troubleshooting Method
137
Troubleshooting Based on Information Displayed on Remote Controller
143
Check Codes Displayed on Remote Controller and SHRM-E Outdoor Unit (7-Segment Display on I/F Board) and Locations to be Checked
147
Diagnosis Procedure for each Check Code
164
7-Segment Display Function
196
Oil Level Judgment Display
202
SHRM-E Outdoor Interface P.C. Board Function Setting Exchange Table
203
Leakage/Clogging of Refrigerating Cycle Circuit
206
Sensor Characteristics
211
Pressure Sensor Output Check
214
Backup Operation
216
(Emergency Operation)
216
Note for Backup Operation
216
Compressor Backup Operation Setting
217
Outdoor Unit Backup Operation Setting
218
Follower Outdoor Unit Backup Operation Setting (Failure of Follower Outdoor Unit)
218
Header Outdoor Unit Backup Operation Setting (Failure of Header Outdoor Unit)
220
Outdoor Unit Refrigerant Recovery Method
223
Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)
223
Note for Refrigerant Recovery Operation
223
Refrigerant Recovery Procedure a (Case of no Outdoor Unit Backup Operation Setting)
223
Refrigerant Recovery Procedure B (Case of Outdoor Unit Backup Operation Setting)
226
How to Operate System While Failed Outdoor Unit Being Repaired
228
Work Procedure after Repair
229
Replacing Compressors
230
Compressor Replacement Procedure (Outline)
230
Replacement of Compressors
231
Check Procedure to Search Cause of Compressor Oil Shortage
235
Outdoor Unit Parts Replacement Methods
237
C. Board Exchange Procedures
250
Replacement of Outdoor P.C. Boards
250
List of Service P.C. Boards
251
Configuration of Inverter Assembly
251
Interface P.C. Board (MCC-1673) Replacement Procedure
252
Comp-IPDU P.C. Board (MCC-1683) Replacement Procedure
253
Fan-IPDU P.C. Board (MCC-1610) Replacement Procedure
255
Noise Filter P.C. Board (MCC-1682 A, B) Replacement Procedure
257
Multi Port Fs Unit Parts Replacement Methods
259
Single Port Fs Unit (Long Piping Model) Parts Replacement Method
265
Exploded Diagram/Parts List
274

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Toshiba MMY-AP1446FT2P-UL Service Manual (287 pages)

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