Carrier 48SX024-048 - Manual (Page 45)

Refrigerant Circuit — Inspect all refrigerant tubing con­
nections and the unit base for oil accumulations annually.
Detecting oil generally indicates a refrigerant leak.
If oil is detected or if low cooling performance is sus­
pected, leak-test all refrigerant tubing using an electronic
leak-detector, halide torch, or liquid-soap solution. If a
refrigerant leak is detected, refer to Check for Refrigerant
Leaks section on page 21.
If no refrigerant leaks are found and low cooling perfor­
mance is suspected, refer to Checking and Adjusting
Refrigerant Charge section on page 30.
Gas Input — The gas input does not require checking
unless improper heating performance is suspected. If a prob­
lem exists, refer to Start-Up section on page 21
Evaporator Airflow — The heating and/or cooling air­
flow does not require checking unless improper perfor­
mance is suspected. If a problem exists, be sure that all
supply- and return-air grilles are open and free from ob­
structions, and that the air filter is clean. When necessary,
refer to Indoor Airflow and Airflow Adjustments section on
page 30 to check the system airflow.
Metering Device — Acutrol " Device — This me
tering device is a fixed orifice and is located in the header
to the evaporator coll.
Liquid Line Strainer — The liquid line strainer (to
protect metering device) is made of wire mesh and located
in the liquid line on the inlet side of the metering device.
Copyright 1994 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book|1 |4 PC 111 Catalog No 534-842 Printed in U S A Form 48SS,SX-2SI Pg 44 5-94 Replaces: 48SS,SX-1 Si
Tab la 6a