Hillphoenix Adaptapak ADP-M0000-L0032, Инструкция по установке и эксплуатации

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AdaptaPAK® Installation
refrigerant pipe size should be selected from an engineering table or from the manufacturer’s legend or schedule.
Wherever the information is provided, always find the correct size and never guess as to what size to use.
The basic principles for piping practices, listed below, spell out how piping for supermarket refrigeration systems
should be installed. One overriding principle that applies to piping, as well as, all other aspects of refrigeration
system installation is that verification should be documented during the entire process to ensure adherence to
quality and performance standards.
Basic Piping Principles
Certain basic principles must be followed in piping refrigeration systems:
1. Verify components
2. Adhere to legend line sizes and use only clean dry piping
3. Properly size:
a. lines to reduce pressure drop to 1 to 2 pounds maximum to ensure correct velocities
b. line lengths that are subject to expansion and contraction
4. Provide proper support and clamping to refrigeration lines
5. Properly brazed joints
6. Insulate suction lines
7. Pressure test line sets
8. Properly evacuate system
Careful consideration of each step includes:
1. Verify components—positively confirm (as with all other aspects of the installation process) that all components
match each other, i.e., all TEVs have the same refrigerant as the rack legend.
2. Adhere to legend line sizes and use only clean dry piping—only use those line sizes shown on the legend for the
system; any discrepancies in the line size, as well as the refrigeration loads, must be brought to the attention of
the customer and Hillphoenix.
3. Properly size:
a. Lines to reduce pressure drop to 1 to 2 pounds maximum to ensure correct velocities—lines should be sized
to minimize pressure drop, while maintaining sufficient velocity to return the lubricating oil to the compressor
crankcases—liquid lines should be of adequate size to provide proper refrigerant feed to the evaporators
(restrictions in liquid lines, due to poor piping practices, increase pressure drop and promote flashing, further
increasing the pressure drop due to turbulence).