Comfort-Aire HEH Series 2 to 5 Tons - Manual (Page 4)

4
Installation, Operation & Maintenance HEV/H SERIES Heat Controller, LLC.
WARNING! Verify refrigerant type before
proceeding. Units are shipped with R-22
refrigerant.
WARNING! To avoid the release of
refrigerant into the atmosphere, the
refrigerant circuit of this unit must be
serviced only by technicians who meet local,
state, and federal proficiency requirements.
WARNING! All refrigerant discharged
from this unit must be recovered WITHOUT
EXCEPTION. Technicians must follow industry
accepted guidelines and all local, state, and
federal statutes for the recovery and disposal of
refrigerants. If a compressor is removed from
this unit, refrigerant circuit oil will remain in the
compressor. To avoid leakage of compressor
oil, refrigerant lines of the compressor must be
sealed after it is removed.
CAUTION! To avoid equipment damage,
DO NOT use these units as a source of
heating or cooling during the construction
process. The mechanical components and
filters will quickly become clogged with
construction dirt and debris, which may
cause system damage.
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ѥ CAUTION! ѥ
Safety
Warnings, cautions and notices appear throughout this
manual. Read these items carefully before attempting any
installation, service or troubleshooting of the equipment.
DANGER: Indicates an immediate hazardous situation,
which if not avoided will result in death or serious injury.
DANGER labels on unit access panels must be observed.
WARNING: Indicates a potentially hazardous situation,
which if not avoided could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation or
an unsafe practice, which if not avoided could result in
minor or moderate injury or product or property damage.
NOTICE: Notification of installation, operation or
maintenance information, which is important, but which is
not hazard-related.
R-410A