Greenheck ERCH-20 Installation, Operation And Maintenance Manual page 54

Troubleshooting – Evaporative Cooling
Poor performance
after cooling pad Incorrect pad installation.
replacement
Always have a completed Pre-Start-Up Checklist and Start-Up Checklist prior to requesting parts or service
information.
52 Energy Recovery Ventilator with Heating and Cooling General Description - NOT model specific
Pad installed backwards. To get the performance from
the cooling pads, they must be installed properly. The
pads are manufactured with 15/45 degree flute angles.
The pads must always be installed with the steeper flute
angle sloping down toward the entering air side.
Entering Air
°
45
Leaving Air
°
15
®