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General| Brand | Midea |
|---|---|
| Model | MDV-D252W/CS |
| Category | Air Conditioner |
| Language | English |
Refer to the indoor unit installation manual for indoor parts installation procedures.
Details on refrigerant piping diameter, nitrogen charging, and heat insulation for safe installation.
Procedure for testing refrigerant piping for gas proofness using nitrogen pressure.
Avoid locations with combustible gas, oil, salt air, caustic gas, or noise interference.
Ensure adequate space for maintenance and installation of power units.
Refer to tables for outdoor unit pipe sizes for main piping connections.
Details on pipe sizing for connections between branches in multi-module systems.
Piping configurations for single outdoor unit installations.
Piping configurations for systems with two outdoor units.
Piping configurations for systems with three outdoor units.
Piping configurations for systems with four outdoor units.
Ensure piping is clean and dry, use nitrogen for washing.
Steps for conducting airtight tests using nitrogen and gauge joints.
Instructions for vacuuming from both liquid and gas sides simultaneously.
Calculate added refrigerant based on pipe diameter and length.
Setting the address for the outdoor unit using a switch.
Switch for setting the capacity of the outdoor unit.
Switch to select the operating mode (COOL, HEAT, AUTO).
Instructions for using SW4 to query operational parameters and error codes.
Procedure for setting the outdoor unit address based on system configuration.
Wiring connections for digital and fixed compressors, and fans.
List of error codes (E1-E8) and protection codes (P1-P8) with their meanings.
Install snow sheds to prevent snow accumulation at air inlet/outlet.
Selecting power supply, leakage protector, and wire diameter.
Requirements for separate power supply for outdoor units without power facilities.
Details on single-phase 220V power supply and branch box components.
Selecting manual switch and fuse capacity for branch boxes.
Important cautions before starting test running, including valve operation.
Clearly identify and record connected systems on the outdoor unit nameplate.
Information on refrigerant R22, critical thickness, and countermeasures.
Turn over owner's manuals and service manual to the customer.
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