Honeywell TrueFRESH ERV/HRV Série Guide D'installation page 33

Balancing Steps (continued)
a. Use a pitot tube or fl ow station to measure the
2
air fl ow in the fresh air duct and exhaust air
duct. (For the VNT5070, make airfl ow
measurements by following the procedure on
page 30.)
b. Move the mode selector switch to adjust the
air fl ow in the duct with the higher reading.
INTER: Exhaust air (right)
OFF: Fresh air (left)
c. Press the (+) or (–) buttons to adjust the air
fl ow 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.
NOTE: For airflow measurements on VNT5070,
follow the procedure on page 32.
3
a. Press the (+) and (–) buttons simultaneously to exit
balancing mode .
b. Indicator light turns green.
c. Continuous speed will be 50% of measured CFM.
TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—13
FRESH AIR DUCT STALE AIR DUCT
(LEFT) (RIGHT)
LED
3-POSITION
SELECTOR SWITCH
Speed
Control
Open for
Instructions
SPEED CONTROL
BUTTONS (+ AND -)
M32371
31