Greenheck Fan 470656 manual Set-up Optional Components

Note

The most accurate way to measure the air volume is by using a pitot traverse method downstream of the blower. Other methods can be used but should be proven and accurate.

Important

Changing the air volume can significantly increase the motor’s amps. If the air volume is changed, the motor’s amps must be checked to prevent overloading the motor.

Note

To ensure accuracy, the dampers are to be open when measuring the air volume.

6. Set-up Optional Components

Adjust the settings on the optional components. See the Control Center Layout in the Reference section for location of optional components.

•Heating Inlet Air Sensor

Typical setting: 60-70ºF

•Cooling Inlet Air Sensor

Typical setting: 75ºF

•Building Freeze Protection

Typical setting: 5 minutes; 45ºF

•Dirty Filter Gauge

Typical setting: Settings vary greatly for each unit. See Reference section for adjusting information.

Note

If your unit is equipped with a 4:1 modulation or 8:1 staged control, the inlet air sensor and building freeze protection may be included in the furnace controller. If this is the case, instructions for setting the inlet air sensor and building freeze protection are included in the Furnace Start-Up.

24 Model IG / IGX Make-Up Air

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