Installation; Outline Of Installation - Danfoss Optyma OP-UPAC015COP04E Application Manuallines

Application Guidelines

4.1 Outline of installation

Flow of installation work and points to note during installation
<Refrigerant piping work, airtight test, vacuum drying and additional refrigerant charge>
Note :
1. Conventional R410A application products are absolutely incompatible with R744 application products.
2. Replace all measuring instruments and tools directly in contact with the refrigerant with those special to R744.
<<Installation work ow>>
Pre-construction for piping
Indoor unit delivery/preparation
Refrigerant piping work
Foundation work of Condensing unit
Installation of Codensing unit
Electric & control wiring work
Charge refrigerating machine oil
Test run (Operation check)
1 Refrigerant charge
2 Refrigerant oil
3 Oil return operation
Fig. 9
22
AB408540130380en-000102

4. Installation

Plan the project
Con rm refrigerant
Create Installation map
Prepare the installation
(Dry, clean, non-leak)
Insulationv work
Airtight test
Vacuum drying
Charge refrigerant
Set up Dip switch
Install Panel
Test run
<< Difference of work >>
R744
R744 (High pressure side: Max. 140 Bar,
Medium/low pressure side: Max. 80 Bar)
( ) indicates the airtight test pressure.
mark: (Change of standards)
mark: (More thorough, strict observation than conventional)
Con rm that it is an R744 application product.
Measuring instruments, tools (Special to R744)
1. Select proper piping materials, wall thickness.
2. Thorough control of cleaning pipe inside
3. Nitrogen gas ow is a must for brazing.
4. Flashing pipe inside is a must after brazing.
5. Strict use of torque wrench
Con rm that it is an R744 application product.
The product is absolutely incompatible.
1. Airtight test pressure
R744 Medium/low pressure side
Max. 80 Bar × 24 hr
1. Evacuate for 2 to 3 hr.
(Basic is -1 Bar or under.)
2. Use vacuum pump adaptor.
1. Con rmation of refrigerant (bomb) in use
2. Must charge refrigerant in liquid state.
3. Use manifold valve, charge hose special to R744.
4. Use device special to R744 at gas leak test.
Delivery (Hand over) and instruction
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