Lennox Fhm 120 - Energy Recovery Module Installation

COMMISSIONNING
FLEXYII_WSHP-IOM-1307-E - 30 -
STEP 8: Roof curb economiser Adjustment
With Heat Recovery module option the extract air goes through the wheel, that’s why the
economiser of the roofcurb has to be permanently fully closed.
If roofcurb economiser is not fully closed, close it
manually.
And don’t connect the actuator to the rooftop.
Actuator roofcurb not
connected