Packaged Rooftop Air Conditioners
Precedent™ — Gas/Electric
3 to 10 Tons — 60 Hz
Installation, Operation, and Maintenance
January 2021
RT-SVX21AC-EN
Model Numbers:
YSC036G - YSC060G YHC072F - YHC102F
Model Numbers:
YSC072H - YSC120H YHC120F
Model Numbers:
YHC036E - YHC072E YHC037E - YHC067E
Model Numbers:
YHC048F - YHC060F
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are
attached to the equipment.