Greenheck Fan 470658 MSX manual Adjust the Freeze Temperature

NOTE

The Freeze Temperature is preset to the factory recommended 45°F. Steps 9-11 should only be completed if the Freeze Temperature needs adjustment.

NOTE

The Freeze Temperature is the temperature at which the supply solenoid closes and the drain solenoid opens to drain the supply line, preventing possible freeze damage. A drain solenoid is required for this option.

9. Enter Program Mode

Press and hold the Enter Key

for three seconds. The
display will read “Pro”
when Program Mode is
active.	Program Display

10. Adjust the Freeze Temperature

While in Program Mode, use the Up and Down

Keys to navigate
through the Menu
Options until
“Frt” is displayed.
Press the Enter
Key to access the	Freeze Temperature
selected Menu Option
setting.	Display

Use the Up and Down Keys to adjust the Freeze Temperature setting as needed. Press the Enter Key to set the Freeze Temperature and return to the Program Menu.

NOTE

The enter key must be pressed to save the new freeze temperature.

11. Exit Program Mode

After 15 seconds of idle time the controller will exit Program Mode.

® Model MSX Make-Up Air 21