Control Panel
The control panel has a 3-position selector switch
and “
+
” and “
–
” buttons for speed control. The
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.
TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—05
24
LED
3-POSITION
SELECTOR SWITCH
SPEED CONTROL
BUTTONS (+ AND -)
Speed
Control
Open for
Instructions
M32371
