Rinnai ENERGYSAVER EX08C Installation Fundamentals page 16

Economy Function
Economy Mode is designed to save gas usage over time.
• The Economy Function is based on the theory that the human body cannot detect small
temperature changes over an extended period of time.
• 30 minutes after the set point temperature is achieved, the unit will reduce the temperature
by 2°F. After 30 additional minutes, the unit will reduce the temperature an additional 2°F.
• The maximum temperature reduction will not exceed 4°F.
• This reduction will not occur if the unit is undersized and cannot maintain the initial set point.
72°F
Initial Set point is 70°F
70°F
68°F
66°F
0
After 30 minutes of maintaining
70°F, the unit will maintain 68°F
30 60
Minutes of Operation at Set Point
After 30 minutes of maintaining 68°F, the unit will
maintain 66°F. No further reduction will occur
90
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