23
c.
Refrigeration Piping Installation
All interconnecting pipes should be of refrigeration grade, clean, dehydrated and must
remain capped at both ends until installation. Even during installation, if the system is
left for any reasonable period (say two hours), pipes should be re- capped to prevent
moisture and contaminants from entering the system.
Do not assume that the service connection sizes on the unit (at the service valves) are
the correct size to run your interconnecting refrigeration pipes. The service valve sizes
have been selected for convenience of installation and in some cases (larger units)
these may be considered too small. However, for the very short pipe run within our
units, these service connection sizes are adequate.
