Carrier PC211 Start-Up, Operation And Maintenance Instructions Manual page 35

Introduction
Prior to initial start-up of the 19XL unit, those involved in the start-up, operation, and
maintenance should be thoroughly familiar with these instructions and other necessary job data.
This book is outlined so that you may become familiar with the control system before performing
start-up procedures. Procedures in this manual are arranged in the sequence required for
proper machine start-up and operation.