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 to 10 Tons — 60 Hz
Installation, Operation,
and Maintenance
Model Numbers
YSC036G - YSC060G YHC072F - YHC102F
YSC072H - YSC120H YHC120F
YHC036E - YHC072E YHC037E - YHC067E
YHC048F - YHC060F
RT-SVX21Y-EN
November 2018
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