Installation Manual

H-Series Demand Duo™ 2 Installation and Operation Manual 2
If the information in these instructions is not followed exactly, a fire or
explosion may result causing property damage, personal injury, or death.
• Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
• WHAT TO DO IF YOU SMELL GAS
− Do not try to light any appliance.
− Do not touch any electrical switch; do not use any phone in your building.
− Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s
instructions.
− If you cannot reach your gas supplier, call the fire department.
• Installation and service must be performed by a trained and qualified professional, service agency
or the gas supplier.
WARNING WARNING
CHS 199 100 H V A i N/P
Commercial Hybrid System
(Demand Duo)
Max KBTU Input
(398, 320, 199, 160, 130)
Tank Capacity
(119, 80)
Series
(H=High Efficiency, R=Regular Efficiency)
Special Designation
(V=Vertical, A=ASME Tank)
Indoor (all models)
Gas Type (NG or LPG)
Example: CHS199100HVAiN