Rinnai M060C Installation And Operation Manual page 80

Outdoor reset is a built-in function to help maximize the efficiency of the boiler. The design of this
function is to adjust the target temperature of the boiler relative to the outdoor ambient
temperature via the four outdoor reset curve options included in the boiler parameters. The
outdoor ambient temperature is observed via the provided outdoor temperature sensor.
The outdoor temperature sensor should be mounted on a North facing wall of the house below an
eave to avoid direct sunlight (to prevent obtaining a false reading of the outdoor temperature). The
sensor should also be mounted away from any vent, duct, or other device that may create an
artificial heat source. The sensor should then be wired back to the outdoor temperature sensor
terminal on the boiler. Refer to the following sections for more information.
North Facing Wall
Outdoor Temperature
Sensor
80 Rinnai M-Series Condensing Boiler Combi Manual