Aprilaire MFB-0920 ユーザーズマニュアル

 

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The ETC can be programmed in four simple steps using the LCD display and the three keys on the face 
of the control. 
 

Step 1 -  

   To  start  programming,  press  the  SET key once to access the Fahrenheit/Celsius 

mode.  The display will show the current status, either F for degrees Fahrenheit or 
C for degrees Celsius.  Then press either the up 

⇑ or down ⇓ arrow key to toggle 

between the F or C designation 

 

 

Step 2 - 

Press the SET key again to access the setpoint.  The LCD will display the current 
setpoint and the S1  annunciator will be blinking on and off to indicate that the 
control is in the setpoint mode.  Then press either the up 

⇑ key to increase or the 

down 

⇓ key to decrease the differential to the desired temperature. 

 

 

Step 3 - 

Press  the  SET key again to access the differential.  The LCD will display the 
current differential and the DIF1 annunciator will be blinking on and off to indicate 
that the control is in the differential mode.  Then press either the up 

⇑  or  the down 

⇓ key to decrease the differential to the desired setting. 

 

 

Step 4 -   

Press  the  SET key again to access the cooling or heating mode.  The LCD will 
display the current mode, either C1 for cooling or H1  for heating.  Then either 
press the up 

⇑ or down ⇓ key to toggle between the C1 or H1 designation.  Press 

the SET key once more and programming is complete. 

 

Note:  The ETC will automatically end programming if no keys are depressed for a period of thirty 

seconds.  Any settings that have been input to the control will be accepted at that point

.