Carrier 19XL - Manual (Page 183)

Refrigeration Log
A refrigeration log, such as the one shown in Figure 35 , provides a convenient checklist for
routine inspection and maintenance and provides a continuous record of machine performance.
It is an aid in scheduling routine maintenance and in diagnosing machine problems.
Keep a record of the machine pressures, temperatures, and liquid levels on a sheet similar to
that shown. Automatic recording of PIC data is possible through the use of CCN devices such
as the Data Collection module and a Building Supervisor. Contact your Carrier representative
for more information.
Click here for Figure 35 — Refrigeration Log (For Print)