Mitsubishi Heavy Industries FDU125VSV Manuals

Manuals and User Guides for Mitsubishi Heavy Industries FDU125VSV. We have 2 Mitsubishi Heavy Industries FDU125VSV manuals available for free PDF download: Technical Manual

Mitsubishi Heavy Industries FDU125VSV Technical Manual (382 pages)

Brand: Mitsubishi Heavy Industries | Category: Air Conditioner | Size: 25 MB

Table of Contents
3
How to Read the Model Name
5
Specific Features
5
Selection Data
6
Specifications
6
Range of Usage and Limitations
88
Operating Temperature Range
89
Height and Length Restrictions for Refrigerant Piping
90
Exterior Dimensions
91
Wireless Remote Controller
104
Outdoor Unit
105
Exterior Appearance
110
Piping System
112
Preset Point of the Protective Devices
118
Selection Chart
119
Piping Length Limitations
137
How to Obtain the Cooling and Heating Capacity
137
Characteristics of Fan
138
Noise Level
144
Electrical Wiring
148
Outline of Operation Control by Microcomputer
159
Remote Controller
159
Operation Section
160
Auto Operation
161
Dehumidifying Operation
161
Operation Control Function by the Indoor Controller
161
Operations of Functional Items During Cooling/Heating
161
Hot Start (Cold Draft Prevention at Heating)
162
Remote Controller Display During the Operation Stop
162
Timer Operation
162
Hot Keep
163
Filter Sign
163
Fan Control During the Heating Thermostat off
163
Auto Swing Control
163
Compressor Inching Prevention Control
164
Drain Motor (DM) Control
164
Operation Check/Drain Pump Test Run Operation Mode
164
Cooling, Dehumidifying Frost Protection
165
Heating Overload Protection
165
High Ceiling Control
166
Abnormal Temperature Thermistor Wire/Short-Circuit Detection
167
External Control (Remote Display)/Remote Operation
167
Operation Permission/Prohibition/Coin Timer Control
167
Fan Control at Heating Startup
168
Return Air Temperature Compensation
168
Room Temperature Detection Temperature Compensation During Heating
168
Operation Control Function by the Wired Remote Controller
169
Outline of Heating Operation
170
Operation Control Function by the Outdoor Controller
170
Outline of Cooling Operation
170
Cooling High Pressure Control
171
Cooling Overload Protective Control
171
Protective Control Function
171
Cooling Low Outdoor Temperature Protective Control
172
Heating High Pressure Control
172
Heating Low Outdoor Temperature Protective Control
173
Heating Overload Protective Control
173
Compressor Overheat Protection
174
Current Cut
174
Current Safe
174
Outdoor Unit Failure
174
Serial Signal Transmission Error Protection
175
Outdoor Fan Motor Protection
175
Rotor Lock
175
Outdoor Fan Control at Low Outdoor Temperature
175
Compressor Start Control
176
Determination of Compressor Speed (Frequency)
176
Compressor Soft Start Control
177
Outdoor Unit Fan Control
178
Outdoor Unit Fan Control at Cooling Low Outdoor Air
179
Outdoor Unit Fan Control by Power Transistor Radiator Fin Temperature
179
Caution at the Outdoor Unit Fan Start Control
180
Defrosting Start Conditions
180
Snow Protection Fan Control
180
Heating High Pressure Protection
182
Low Pressure Control
182
Compressor Pressure Ratio Protection Control
182
Anomaly Detection Control by the High Pressure Switch
182
Anit-Frost Control by the Compressor Frequency Control
183
Anomalous Power Transistor Current
183
Over-Current Protection Current Safe Controls
183
Power Transistor Temperature Protection
183
Broken Wire Detection on Temperature Thermistor/Low Pressure Sensor
184
Dewing Prevention Control
184
Fan Motor Error
184
Refrigerant Quantity Shortage Protection
184
Pump-Down Control
185
Silent Mode
185
Application Data
186
Safety Precautions
186
Selection of Installation Location
189
Installation Space for Indoor Unit
189
Installation of Indoor Unit
189
Drain Piping
190
Suspension
190
Drain Pump Operation
191
Drain Socket
191
Drainage Test
191
Hard PVC Pipes Laid Indoor
191
Panel Installation
192
Ceiling Cassette-4Way-Type (FDT)
194
Selection of Installation Location for the Indoor Unit
194
Space for Installation and Service
194
Ceiling Opening, Suspension Bolts Pitch, Pipe Position
195
Preparation before Installation
195
Work Procedure
197
Refrigerant Pipe
197
Drain Pipe
198
Drain up
199
Drain Test
199
The Method of Checking the Dirt of Drain Pan
200
Wiring-Out Position and Wiring Connection
200
Checking the Indoor Unit Installation Position
201
Removing a Corner Panel
201
Removing the Air Return Grille
201
Attaching the Panel
202
Attaching a Corner Panel
203
If It Is Necessary to Fix the Louver Position Manually
203
Attaching the Air Return Grille
204
Piping Connection Position
208
Duct Connected-Middle Static Pressure-Type (FDUM)
209
Supply Air Duct
210
Access Door
210
Blower Fan Tap Switch
210
Return Air Port
211
Return Air Port with Canvas Duct
212
Forced Drain Pump Operation
214
Duct Connected-High Static Pressure-Type (FDU) - Installation
215
Adjustment for Horizontality
216
Pipe Locations
216
Suspension Bolt Location
216
Bad Example of Duct Work
217
Piping Work
218
Outline of Bottom Drain Piping Work
221
Tap Selection on Blower Unit (When the High Peformance Filter Is Used)
221
Uncoupling the Drain Motor Connector
221
Air Conditions, Limitation of Air Volume
222
Simpliﬁed Method for Determination of Duct Dimensions
224
Provision of Trap
224
Installation of Wired Remote Controller
227
Installation of Outdoor Unit
228
Chart of Shapes of Branch Piping Parts
230
How to Use Pipe Reducer
232
Points for Attention in Installing Refrigerant Piping
233
How to Remove the Side Cover
234
Method for Connecting the Accessory Pipe
234
Refrigerant Pipe Connection
234
Length of the Straight Pipe (Prepared in the Field)
235
Air Purge
236
Air Tightness Test
236
Additional Refrigerant Charge
237
Charging Refrigerant
239
Drain Piping Work
239
Electrical Wiring Work
239
Power Cable, Indoor-Outdoor Connecting Wires
240
Controlling Multiple Indoor Units Using a Single Remote Controller
241
Remote Controller Wiring and Connection Procedure
241
Clearing the Function Setting
242
Flow of Function Setting
242
Initial Settings
242
Setting Functions Using the Wired Remote Controller
242
How to Set Function
244
How to Set Upper and Lower Limit Value
245
The Range of Temperature Setting
245
How to Set the Airflow Direction
246
To Start a Forced Drain Pump Operation
246
Trail Operation of Drain Pump
246
Error Code of Indoor Unit
251
Indoor Unit Troubleshooting
251
Test Run
252
Test Run from an Wired Remote Controller
253
Evacuation Procedure
254
Maintenance Data
254
Refrigerant Charging
255
Trouble Shooting for Refrigerant Circuit
255
Diagnosing of Microcomputer Circuit
256
Selfdiagnosis Function
256
Error Detecting Timing
259
Error Log and Reset
259
Occurrence of Plural Kinds of Error
259
Resetting the Error Log
260
Control PCB
261
Power PCB
262
Reset of Power Supply
264
Troubleshooting at the Outdoor Unit Side
264
Module of Part to be Replaced for Outdoor Unit Controller
264
Replacement Procedure of Outdoor Control PCB
264
Precautions for Safety
264
Outdoor Inverter PCB Replacement Procedure
268
Check of Anomalous Operation Data with the Remote Controller
272
Details of Compressor Protection Status No. 33
273
Check Run
274
Inspection Display of Wireless Specification Model (FDEN, FDT)
274
Power Transistor Module (Including Driver PCB) Inspection Procedure
275
Troubleshooting Flow
276
Operates but Does Not Cool
277
Operates but Does Not Heat
278
Earth Leakage Breaker Activated
279
Excessive Noise/Vibration
280
Louver Motor Failure
283
Power Supply System Error (Power Supply to Indoor Unit PCB)
284
Power Supply System Error (Power Supply to Remote Controller)
285
Inspect I/U (When 1 or 2 Remote Controllers Are Connected)
286
Inspect I/U (Connection of 3 Units or more Remote Controller)
287
Wait
288
No Display
294
Remote Controller Communication Circuit Error
295
Communication Error During Operation
296
Indoor Heat Exchanger Temperature Thermistor Anomaly
297
Return Air Temperature Thermistor Anomaly
298
Heating Overload Operation
299
Drain Trouble (FDT and FDTC Series)
300
Excessive Number of Connected Indoor Units
301
Communication Error between Master and Slave Indoor Units
302
Indoor Fan Motor Anomaly (in Case of FDTC and FDT)
303
Indoor Unit Operation Check, Drain Motor Check Setting Error
304
Remote Controller Temperature Thermistor Anomaly
305
Inverter Primary Current Error
306
Open L3 Phase on Power Supply
307
Cooling Overload Operation
309
Discharge Pipe Temperature Error
311
Outdoor Heat Exchanger Temperature Themistor Anomaly
312
Ambient Air Temperature Thermistor Anomaly
313
Discharge Pipe Temperature Thermistor Anomaly
314
High Pressure Error (63H1 Activated)
315
Power Transistor Overheat
316
Inverter Communication Error
319
Inverter Over-Current Error
320
Outdoor DC Fan Motor Error
321
Low Pressure Error or Low Pressure Sensor Anomaly
323
Inverter and Fan Motor Anomaly
325
Suction Pipe Temperature Thermistor Anomaly
326
Low Pressure Sensor Anomaly
327
Underneath Temperature Thermistor Anomaly
328
Insufficient Refrigerant Amount or Detection of Service Valve Closure
329
Compressor Startup Failure
330
Compressor Rotor Lock Error
332
Table of Contents
333
Multi-Type (V Multi) Packaged Air-Conditioner
333
General Information

334
- SpeciﬁC Features
  334
- How to Read the Model Name
  334
- Table of Models
  335
- Table of System Combinations
  335
  - Selection Data (Multi-Type)
    336
  - Specifications (Multi-Type)
    336
- Speciﬁcations
  336
- Range of Usage & Limitations
  354
  - Operating Temperature
    354
  - Installation Site
    354
  - Application Date (Multi-Type)
    357
- Exterior Dimensions
  357
- Exterior Appearance
  357
- Piping System
  357
- Selection Chart
  357
- Characteristics of Fan
  357
- Noise Level
  357
Electrical Wiring

357
Outline of Operation Control by Microcomputer

357
Maintenance Date

361

Mitsubishi Heavy Industries FDU125VSV Technical Manual (396 pages)

PACKAGED AIR-CONDITIONER Split system, Air to air heat pump type

Brand: Mitsubishi Heavy Industries | Category: Air Conditioner | Size: 16 MB

Table of Contents

4
2. Multi-Type (V Multi) Packaged Air-Conditioner

347
- Range of Usage & Limitations
  368
- Characteristics of Fan
  372
- Electrical Wiring
  372
- Exterior Appearance
  372
- Exterior Dimensions
  372
- Noise Level
  372
- Outline of Operation Control by Microcomputer
  372
- Piping System
  372
- Selection Chart
  372
- Application Date
  373
- Maintenance Date
  376
  - Fdtc Series
    384

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Mitsubishi Heavy Industries FDU125VSV Technical Manual (396 pages)

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