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.
Packaged Rooftop Air Conditioners
Precedent™ — Gas/Electric
3 – 10 Tons – 60 Hz
July 2012 RT-SVX21K-EN
Installation, Operation,
and Maintenance
Model Numbers
YSC036E - YSC060E YHC036E - YHC067E
YSC072F - YSC120F YHC092E - YHC120E
YHC048F - YHC060F YHC072F - YHC092F
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