Honeywell 69-2480EF05 用户手册

Balancing Steps

TrueFRESH™ ERV/HRV Ventilation Systems   69-2480EF—05

25

LED

3-POSITION

SELECTOR SWITCH

SPEED CONTROL

BUTTONS (+ AND -)

M32371

a. Ensure that the speed control selector switch is in either the INTER or CONT position.
b. Press the (+) and (–) buttons simultaneously for 5 seconds until the LED indicator light turns  
 yellow, which indicates that you are in balancing mode.

When in balancing mode, the selector switch becomes the motor selector switch. The switch
positions become: INTER = Right motor (exhaust air), CONT = Both motors, and OFF = Left
motor (fresh air).

a. Use a pitot tube or flow station to measure the  
 air flow in the fresh air duct and exhaust air  
 duct.
b. Move the mode selector switch to adjust the  
 air flow in the duct with the higher reading. 
  INTER:  Exhaust air (right) 
  OFF: Fresh air (left)
c. Press the (+) or (–) buttons to adjust the air 
 flow to the desired high speed setting.
d. Move the mode selector switch to the CONT 
 position (to proportionally adjust the speed of 
 both motors at the same time.

FRESH AIR DUCT
(LEFT)

STALE AIR DUCT
(RIGHT)

a. Press the (+) and (–) buttons simultaneously to exit  
 balancing mode .
b. Indicator light turns green.
c. Continuous speed will be 50% of measured CFM.

NOTE:  Perform the balancing steps with the HVAC equipment fan turned ON if the ERV/HRV unit

is ducted into an HVAC system.