2
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies hazards
which could result in personal injury or death. CAUTION is used
to identify unsafe practices, which may result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability,
or operation.
MODEL NUMBER NOMENCLATURE AND
DIMENSIONS
See Fig. 1 for 50LC model number nomenclature. See Fig. 2-16
for unit dimensional drawings. Figures 5, 10, and 15 show ser-
vice clearance dimensions.
Rated Indoor Airflow
Table 1 lists the rated indoor airflow used for the AHRI efficiency
rating for the units covered in this document. See Table 2 for unit
operating weights.
Table 1 — Rated Indoor Airflow
WARNING
Electrical shock can cause personal injury and death. Shut off
all power to this equipment during installation. There may be
more than one disconnect switch. Tag all disconnect locations
to alert others not to restore power until work is completed.
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal injury,
death and/or equipment damage.
R-410A refrigerant systems operate at higher pressures than
standard R-22 systems. Do not use R-22 service equipment or
components on R-410A refrigerant equipment.
WARNING
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could cause personal injury or
death.
Relieve pressure and recover all refrigerant before system re-
pair or final unit disposal.
Wear safety glasses and gloves when handling refrigerants.
Keep torches and other ignition sources away from refriger-
ants and oils.
CAUTION
PERSONAL INJURY HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and
wear appropriate protective clothing, safety glasses and gloves
when handling parts and servicing air conditioning equipment.
MODEL NUMBER FULL LOAD AIRFLOW (CFM)
50LC**14 4375
50LC**17 4875
50LC**20 5690
50LC**24 6500
5OLC**26 7500
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