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Mitsubishi Electric Manuals
Air Conditioner
PURY-(E)P200
Service handbook
Mitsubishi Electric PURY-(E)P200 Service Handbook
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:
Service handbook
(362 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Safety Precautions
Precautions for Handling Units for Use with R410A
Before Installing the Unit
Electrical Work
Before the Test Run
Table of Contents
Read before Servicing
Read before Servicing
I Read before Servicing
Necessary Tools and Materials
To be Used Exclusively with R410A
Tools and Materials that May be Used with R410A with some Restrictions
Piping Materials
Copper Pipe Materials
Types of Copper Pipes
Piping Materials/Radial Thickness
Flare Processing
Flare Nut
Storage of Piping
Pipe Processing
Storage Location
Sealing the Pipe Ends
Brazing
Use of Oxidized Solder for Brazing
Use of Non-Oxidized Solder for Brazing
Items to be Strictly Observed
Air Tightness Test
Halide Torch
R22 Leakage Detector
Vacuum Drying (Evacuation)
Recommended Vacuum Gauge
Standard of Vacuum Degree
Required Precision of Vacuum Gauge
Refrigerant Charging
Cylinder with a Siphon
Cylinder Without a Siphon
Remedies to be Taken in Case of a Refrigerant Leak
Characteristics of the Conventional and the New Refrigerants
Chemical Property
Refrigerant Composition
Pressure Characteristics
Notes on Refrigerating Machine Oil
Refrigerating Machine Oil in the HFC Refrigerant System
Effects of Contaminants
Restrictions
System Configuration
Standard Combinations
High COP Combinations
Types and Maximum Allowable Length of Cables
Wiring Work
M-NET Transmission Line
Remote Controller Wiring
Switch Settings and Address Settings
M-NET Address Settings
Address Settings Table
Power Supply Switch Connector Connection on the Outdoor Unit
Selecting the Position of Temperature Detection for the Indoor Unit
Various Start-Stop Controls
Miscellaneous Settings
Example of Wiring Connection
Sw4-4: off
Sample System Connection
An Example of a System to Which an MA Remote Controller Is Connected
Wiring Method
Indoor/Outdoor Transmission Line
LOSSNAY Connection
MA Remote Controller Wiring
Sample Control Wiring
Cautions
Maximum Allowable Length
Group Operation of Units in a System with Multiple Outdoor Units
Transmission Line for Centralized Control
Shielded Cable Connection
Address Setting Method
An Example of a System to Which an M-NET Remote Controller Is Connected
An Example of a System to Which both MA Remote Controller and M-NET Remote Controller Are Connected
Restrictions on Pipe Length
Refrigerant Pipe Size
Between Outdoor Unit and the First Twinning Pipe
Between BC Controller and Indoor Unit
Between the Main and Sub BC Controllers
Connecting the BC Controller
Size of the Pipe that Fits the Standard BC Controller Ports
To Connect Multiple Indoor Units to a Port
Size of the Pipe that Fits the Main BC Controller Ports
Size of the Pipe that Fits the Sub BC Controller Ports
Outdoor Unit Components
Outdoor Unit Components and Refrigerant Circuit
Refrigerant Circuit
Control Box of the Outdoor Unit
Outdoor Unit Circuit Board
M-NET Board
Inv Board
Fan Board
Noise Filter
BC Controller Components
Rear View
Control Box of the BC Controller
BC Controller Circuit Board
4 Remote Controller
Functions and Specifications of MA and ME Remote Controllers
Remote Controller Selection Criteria
System with MA Remote Controller
Successful Completion of Registration
Deletion Error
Group Settings and Interlock Settings Via the ME Remote Controller
To Search Group Settings
To Return to the Normal Display
Interlock Setting Search
Address Deletion
To Delete Group Settings
To Delete Interlock Settings
Remote Controller Function Selection Via the ME Remote Controller
Skip-Auto-Mode Setting
Operation Mode Display Selection Mode
Restricted Preset Temperature Range Mode
Room Temperature Display Selection Mode
Interlock Settings Via the MA Remote Controller
Using the Built-In Temperature Sensor on the Remote Controller
5 Electrical Wiring Diagram
Electrical Wiring Diagram of the Outdoor Unit
Electrical Wiring Diagram of the BC Controller
Electrical Wiring Diagram of Transmission Booster
6 Refrigerant Circuit
Refrigerant Circuit Diagram
BC Controller
Principal Parts and Functions
7 Control
Functions and Factory Settings of the Dipswitches
Function of the Switch (Indoor Unit)
Dipswitches
Function of the Switch
Address Switch
ME Remote Controller
Switch Functions
Controlling the Outdoor Unit
Outline of Control Method
Startup Sequence Rotation
Initial Control
Bypass Control
Bypass Solenoid Valve
Compressor Frequency Control
Discharge Temperature Limit
Periodic Frequency Control
Defrost Operation Control
Starting the Defrost Operation
Stopping the Defrost Operation
Problems During Defrost Operation
Refrigerant Recovery Control
Outdoor Unit Heat Exchanger Capacity Control Patterns
Control at Initial Start-Up
Flowchart of Initial Operation
Emergency Operation Mode
Starting the Emergency Operation
Ending the Emergency Operation
Control at or after the Completion of Emergency Operation
Indoor Unit Operation Mode
Outdoor Unit Operation Mode
Operation Pattern for Automatic Cooling/Heating Mode
DEMAND Control
Controlling BC Controller
Control of SVM1 Snd Svmb
Control of LEV
Control of SVM2, and Svm2B
Operation Flow Chart
Mode Determination Flowchart
Dry Operation
8 Test Run Mode
Items to be Checked before a Test Run
Test Run Method
Operating Characteristic and Refrigerant Amount
Adjusting the Refrigerant Amount
Amount of Refrigerant
To be Checked During Operation
Amount of Refrigerant to be Added
Calculation Formula
Refrigerant Amount Adjust Mode
The Following Symptoms Are Normal
Cooling Only Operation
Standard Operation Data (Reference Data)
Troubleshooting
Error Code Lists
Responding to Error Display on the Remote Controller
Error Definition and Error Detection Method
Cause, Check Method and Remedy
Error Code 1302
High Pressure Fault 1 (Outdoor Unit)
Error Code 2502 Drain Pump Fault
Water Leakage
Water Supply Cutoff
Open Phase
Transmission Power Supply Fault
Other than Error Detail Code FF (Outdoor Unit)
Power Supply Signal Sync Error
RPM Error/Motor Error
Abnormal Bus Voltage Drop (Detail Code 108)
Abnormal Bus Voltage Rise (Detail Code 109)
Logic Error (Detail Code No.111)
Low Bus Voltage at Startup (Detail Code 131)
Heatsink Overheat Protection
Overload Protection
IPM Error (Detail Code 101)
ACCT Overcurrent (H/W Detection) (Detail Code 102)
DCCT Overcurrent (H/W Detection) (Detail Code 103)
Instantaneous Overcurrent (Detail Code 106)
Overcurrent (Detail Code 107)
Overcurrent Error Due to Short-Circuited Motor (Detail Code 105)
Return Air Temperature Sensor (TH21) Fault (Indoor Unit)
Return Air Temperature Sensor (TH4) Fault (OA Processing Unit)
Heat Exchanger Outlet Temperature Sensor (TH3) Fault (Outdoor Unit)
Discharge Temperature Sensor (TH4) Fault (Outdoor Unit)
Accumulator Inlet Temperature Sensor (TH5) Fault (Outdoor Unit)
Heat Exchanger Inlet Temperature Sensor (TH6) Fault (Outdoor Unit)
Heatsink Temperature Sensor (THHS) Fault (Detail Code 01)
Liquid Inlet Temperature Sensor (TH11) Fault (BC Controller)
Bypass Outlet Temperature Sensor (TH12) Fault (BC Controller)
LEV3 Outlet Temperature Sensor (TH15) Fault (BC Controller)
LEV3 Inlet Temperature Sensor (TH16) Fault (BC Controller)
High-Pressure Sensor Fault (63HS1) (Outdoor Unit)
High-Pressure Sensor Fault (Outdoor Unit HPS/BC Controller PS1)
Intermediate Pressure Sensor Fault (BC Controller PS3)
ACCT Sensor Fault (Detail Code 115)
ACCT Sensor Circuit Fault (Detail Code 117)
Open-Circuited Ipm/Loose ACCT Connector (Detail Code 119)
Faulty ACCT Wiring (Detail Code 120)
Temperature Sensor Fault
Loose Float Switch Connector
Remote Controller Board Fault (Nonvolatile Memory Error)
Remote Controller Board Fault (Clock IC Error)
Address Overlaps
Polarity Setting Error
Transmission Processor Hardware Error
Transmission Line Bus Busy Error
Communication Error between Device and Transmission Processors
No ACK Error
No Response Error
MA Controller Signal Reception Error (no Signal Reception)
MA Remote Controller Signal Transmission Error (Synchronization Error)
MA Remote Controller Signal Transmission Error (H/W Error)
MA Controller Signal Reception Error (Start Bit Detection Error)
Total Capacity Error
Capacity Code Setting Error
Wrong Number of Connected Units
Address Setting Error
Port Setting Error
Connection Information Signal Transmission/Reception Error
Remote Controller Sensor Fault
Function Setting Error
Model Setting Error
Incompatible Unit Combination
In the Case of MA Remote Controller
In Case of M-NET Remote Controller
Both for MA Remote Controller and M-NET Remote Controller
Investigation of Transmission Wave Shape/Noise
Troubleshooting Principal Parts
High-Pressure Sensor
Pressure Sensor Configuration
Low-Pressure Sensor
Solenoid Valve
In Case of 21S4A
In Case of Sv1A
Refrigerant Circuit Figure (P200 - P300, EP200 Models)
Refrigerant Circuit Figure (P350 - P400, EP300 Models)
In the Case of Sv5B
In the Case of Sv5C
In the Case of SV9
Outdoor Unit Fan
LEV Operation
Indoor LEV and BC Controller LEV
Pulse Signal Output and Valve Operation
Judgment Methods and Possible Failure Mode
Troubleshooting Principal Parts of BC Controller
Troubleshooting Flow Chart for Pressure Sensor
Check the Self-Diagnosis Switch
Temperature Sensor
Troubleshooting Instructions for Thermistor
Troubleshooting Flow Chart for LEV Solenoid Valve
Check Method of Fully Open State or Fully Closed State of LEV
Self-Diagnosis LED
Troubleshooting Flow Chart for Solenoid Valve Body
Solenoid Valve (SVA, SVB, SVC)
BC Controller Transformer
Inverter-Related Problems: Troubleshooting and Remedies
Troubleshooting for IGBT Module
Tester Restriction
Judgment Value (Reference)
INV Board External Diagram
Control Power Source Function Block
Troubleshooting Transmission Power Circuit of Outdoor Unit
Refrigerant Leak
Leak Spot: in the Case of Extension Pipe for Indoor Unit
Leak Spot: in the Case of Outdoor Unit
Leak Spot: in the Case of Outdoor Unit (Heating Season)
Compressor Replacement Instructions
Solenoid Valve Block ASSY
Solenoid Valve Block ASSY (Sv4A, Sv4B, Sv4D) Replacement Procedures
To Install Solenoid Valve Block ASSY
To Remove Solenoid Valve Block ASSY
Solenoid Valve (Sv1A), Capillary Tube ASSY (CP1) Replacement
Servicing the BC Controller
Service Panel
Control Box
Thermistor
Pressure Sensor
Lev
Troubleshooting Using the Outdoor Unit LED Error Display
LED Is Blank
Only the Software Version Appears on the LED Display
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Error Code Lists
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See also:
Service Handbook
AIR CONDITIONERS
PURY-(E)P200, P250, (E)P300, P350, P400YHM-A
Models
PURY-EP400, (E)P450, (E)P500, (E)P600YSHM-A
PURY-P650,P700,P750,P800YSHM-A
Table of
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Table of Contents
Troubleshooting
Troubleshooting
184
Troubleshooting Principal Parts
260
Troubleshooting Principal Parts of BC Controller
269
Temperature sensor
271
Troubleshooting flow chart for LEV Solenoid valve
273
Troubleshooting flow chart for solenoid valve body
276
Inverter-related problems: Troubleshooting and remedies
280
Troubleshooting for IGBT Module
285
Troubleshooting transmission power circuit of outdoor unit
288
Troubleshooting Using the Outdoor Unit LED Error Display
305
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This manual is also suitable for:
Pury-p400yhm-a
Pury-p250
Pury-ep400
Pury-(e)p450
Pury-(e)p500
Pury-(e)p600yshm-a
...
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Pury-p650
Pury-p700
Pury-p750
Pury-p800yshm-a
Pury-(e)p300
Pury-p350
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