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

 



  r 



 ELRIC 





 

 

 



( THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY )

 

 























 

 



 





 







































 



































 







 





1

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

X X 



X  X   X 



 







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

 

 

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

A *1 B C D E F *2 G

  







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





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 



  ,,









  

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 



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







 



 



 

















 



3-2 Set up and installation of the indoor unit  





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







































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









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The indoor unit must be installed horizontally.

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Need help?

Do you have a question about the Mitsubishi Electric PAC-SK01DM-E and is the answer not in the manual?

Summary

Overall dimensions and required installation space

Before installation of the Drain Pump

Set up of the Drain Pump

Prepares the drain pump unit by removing covers and preparing the exterior for mounting.

Set up and installation of the indoor unit

Details preparing the indoor unit for drain pump connection, including making cutouts and removing drain components.

Installation of the Drain Pump

Fixing of the mounting plate

Guides on securing the mounting plate to the wall using a paper gauge and screws.

Fix the Drain Pump on the mounting plate

Instructions for attaching the drain pump unit to the already fixed mounting plate.

Installation of refrigerant piping

Installation of drain piping

Connection of Drain hose

Details connecting the drain hose from the indoor unit to the pump and the flexible hose to the drain pipe.

Installation of drain piping

Covers general requirements for the drain pipe itself, including slope, material, and support.

Electric wiring

Set up of the indoor unit

Instructions for accessing the indoor unit's electrical components for wiring.

Electric wiring

Explains passing and connecting the wiring from the indoor unit to the electric box.

Electric wiring operation

Details specific connections to control board connectors like CNP and CN4F.

Test run

Pour water

Instructions to pour approximately 800 cc of water into the indoor unit's drain pan.

Test run

Operate the unit to ensure drainage works correctly and no leaks occur.

This document describes the Mitsubishi Package Air Conditioner Optional Equipment, specifically the Drain Pump Installation Manual for model PAC-SK01DM-E, PK-L type. It provides detailed instructions for the installation, setup, electrical wiring, and testing of the drain pump, emphasizing safety precautions throughout the process.

Function Description

The drain pump is an optional accessory designed to facilitate the vertical routing of drain and refrigerant tubes from an indoor air conditioning unit. By installing this pump, it becomes possible to manage condensate drainage more flexibly, especially in installations where gravity drainage is not feasible or where a vertical rise is required. The pump ensures that condensate is effectively removed from the indoor unit, preventing water leakage and associated damage to the ceiling, floor, or other property.

Important Technical Specifications

Model: PAC-SK01DM-E, PK-L type.
Installation Position: The drain pump should be installed on the wall next to the left side of the indoor unit.
Drain Pipe Material: Hard vinyl chloride pipe (VP20, outer diameter 26 mm) is recommended for the drain pipe.
Insulation: The drain pipe must be wrapped with adiabatic material (foam polyethylene: specific gravity 0.03, thickness 10 mm or more) to prevent dew condensation.
Horizontal Run: The horizontal run of the drain pipe should be 20 meters or less. Support brackets are recommended for long horizontal runs to prevent waviness.
Falling Slope: The drain pipe should be installed with a falling slope of 1/100 or more towards the outdoor side.
Max Lift: The drain pump can raise water up to 85 cm (maximum lift) from the bottom face of the pump. However, if a horizontal run pipe is connected to the vertical section, water may overflow from the drain pan due to backflow when the operation stops. A flow back stop (1.5-2 m) at the highest point is recommended to prevent this.
Power Supply: The pump connects to the indoor unit's control board via connectors "CNP" and "CN4F."
Accessories: The package includes the drain pump unit, various screws (4x35, 4x16), a drain hose, a flexible hose cover, a band, and a paper gauge for installation.

Usage Features

Vertical Piping: Enables the vertical routing of both refrigerant and drain tubes, offering greater flexibility in installation layouts.
Condensate Management: Actively pumps condensate from the indoor unit, preventing overflow and water damage.
Integrated Design: Designed to integrate seamlessly with Mitsubishi package air conditioners, ensuring compatibility and optimal performance.
Easy Setup: The manual provides clear, step-by-step instructions for setting up the drain pump, including preparing the indoor unit, fixing the mounting plate, and connecting the drain hose.
Electrical Connection: Detailed guidance on connecting the pump's lead wires to the indoor unit's control board, including instructions for removing bypass connectors and ensuring proper wire placement to avoid contact with heat generators.
Safety Precautions: Emphasizes critical safety warnings regarding proper installation to prevent electric shock, fire, water leakage, and unit falling. It also highlights the importance of correct insulation to prevent dew condensation.

Maintenance Features

Test Run Procedure: After installation, a test run is mandatory. This involves pouring approximately 800 cc of water into the indoor unit's drain pan and operating the air conditioning unit in cooling mode to verify that the drainage system works correctly and that no water leaks from any connection.
Winter Season Drainage: In winter, if the drain pump is installed, the water must be drained. This is achieved by removing the drain plug on the side surface of the drain pump.
Inspection: The manual stresses the importance of checking that the mounting plate is level and correctly positioned, and that all connections (especially drain pipe connections) are sealed with PVC adhesive to prevent leaks.
Regular Checks: Although not explicitly detailed as a maintenance schedule, the emphasis on correct installation and initial testing implies that proper functioning should be regularly observed to prevent issues. The design allows for access to the drain plug for manual drainage, which could be part of a routine check.
Troubleshooting: The manual implicitly aids in troubleshooting by detailing correct installation procedures. For instance, if water overflows, it could be due to incorrect horizontal run length, lack of a flow back stop, or improper slope.

The manual serves as a comprehensive guide for installers, ensuring that the drain pump is installed safely and effectively, thereby maximizing the performance and longevity of the air conditioning system while preventing potential water damage.