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Work flow example
Preparations
Prepare schedule of works
↓
Refrigerant check
• Always check the refrigerant to be used.
•
Always use the specified refrigerant.
• Prepare materials/tools matched to refrigerant
↓
Operation chart preparation
↓
Start of work
Indoor unit and RB unit installation
↓
Refrigerant piping work
• Use copper tube of specified material and thickness
to meet endurance pressure of the pipe. (609 psi [4.2
MPa])
• Do not use pipe with dust and dirt sticking to it during
piping connection work.
• Always flow dry nitrogen through piping while braz-
ing.
↓
Drain piping work
↓
Duct work
↓
Installation work
↓
Remote controller installation
↓
Electrical wiring work Do not connect to the power supply.
↓
Outdoor unit foundation work
↓
Outdoor unit installation
2-1. Important items when using refrigerant (R410A) - (06-15) - 2. Piping design
SYSTEM
DESIGN
SYSTEM
DESIGN
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