LE6XRT ERV
RENEWAIRE.COM
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
1.800.627.4499
40
MAINTENANCE
11.6 DOOR LATCH ADJUSTMENT
11.7 MEASURING AIRFLOW
With age and use, the door gaskets may become compressed and no longer provide a complete seal
against air leakage. The door latches can be easily adjusted by changing the position of the swing arm
on the inside of the door.
See photo below
.
Door Latch Adjustment
Air Flow Test Port
Air Flow Test Port Location
Air Flow Test Ports (4)
On every LE6X unit, a set of four air flow test ports are installed on the end doors of both the front and
rear modules.
See images below.
Equipment required:
• A magnehelic gauge or other device capable of measuring 0 to 1.0 in w.g..
• 2 pieces of natural rubber latex tubing, 1/8” I.D., 1/16” wall thickness.
Procedure:
• The differential static pressures (DSP) can be measured using the installed pressure test ports
shown above. Airstream pressure readings are to be taken across the cores by testing at
diagonally-located test ports.
• To read the SCFM of Fresh Air (FA), install the “high” pressure side (+) of the measuring device in
the Outside Air (OA) port and the “low” pressure side (-) in the FA port.
• To read the SCFM of Room Air (RA), install the “high” pressure side of the measuring device in the
RA port and the “low” pressure side in the Exhaust Air (EA) port.
• Use the reading displayed on the measuring device to cross reference the CFM output using the
following conversion chart.
Tubing should be
inserted into the
test port about 1
inch.
Be sure to reinsert the test port cap when air flow measuring is finished.
Motors that are controlled by factory-installed VFDs are equipped with fixed sheaves.
The entire speed range that can be obtained with variable sheaves can be obtained by
adjusting the VFD.
Swing Arm
Set Screw
