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Control Panel
The control panel has a 3-position selector switch
+
–
and "
" and "
color of the LED indicator indicates the current
function of the selector switch.
• GREEN LED = Mode Control (normal operating
mode)
• YELLOW LED = Balancing Control
Speed Control used as a Mode Control
When the LED indicator is green, the selector switch functions as a Mode Selector. The selections are:
• INTER (Intermittent): When the selector switch is in the intermittent position the unit will run only when
there is a call for ventilation by any external control. At that time the unit will run on high speed until the
condition is satisfied.
• CONT (Continuous): When the selector switch is in the continuous position the unit will run continuously
on low speed except when there is a call for override by any control.
• OFF: When the selector switch is in the off position the unit will not operate even when there's a call for
ventilation by an external control.
+
–
• (
) and (
) buttons: Used to adjust the continous speed setting.
Speed Control used as a Balancing Control
In balancing mode the LED indicator is yellow, and the selector switch functions as a Balancing Control
to set the high speed of the motors for balancing purposes (Fresh air, Exhaust air, and Both motors). The
selections are:.
• INTER: Selects the exhaust air motor.
• CONT: Selects both exhaust and fresh air motors.
• OFF: Selects the fresh air motor.
NOTE: Continuous low speed is 50% of the set high speed.
NOTE: See Balancing Steps on page 25.
Speed Control used as a Motor Control
• + Button: Increase the speed of the selected motor.
• – Button: Decrease the speed of the selected motor.
NOTE: See Balancing Steps on page 25.
24
" buttons for speed control. The
LED
3-POSITION
SELECTOR SWITCH
ERV/HRV Ventilation Systems 69-2480EF—01
Speed
Control
Open for
Instructions
SPEED CONTROL
BUTTONS (+ AND -)
M32371
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