Daikin R-22 - Refrigerant Piping Design Check List; Product Information; Jobsite Information

www.DaikinApplied.com 5 AG 31-011 • REFRIGERANT PIPING DESIGN
Refrigerant Piping Design Check List
The rst step in refrigerant piping design is to gather product
and jobsite information. A checklist for each is provided below.
How this information is used will be explained throughout the
rest of this guide.
Product Information
• Model number of unit components (condensing section,
evaporator, etc.)
• Maximum capacity per refrigeration circuit
• Minimum capacity per refrigeration circuit
• Unit operating charge
• Unit pump down capacity
• Refrigerant type
• Unit options (Hot Gas Bypass, etc.)
• Does equipment include isolation valves and charging ports
• Does the unit have pump down?
Jobsite Information
• Sketch of how piping will be run, including:
— Distances
— Elevation changes
— Equipment layout
— Fittings
— Specic details for evaporator piping connections
• Ambient conditions where piping will be run
• Ambient operating range (will the system operate during
the winter?)
• Type of cooling load (comfort or process)
• Unit isolation (spring isolators, rubber-in-shear, etc.)
Tip: Use this list to gather the information required to design your refrigerant piping system