User Manual

17
OPERATION
Prior to starting up or operating the PCU, check all fasteners for tightness. In particular, check the module
connection seal and the door seals. With power to the fan OFF, check the airflow direction of the filters as
they must match the label on the filter.
Start Up
Special Tools Required
• 3M Fire Barrier 2000 + Silicone Sealant
• Standard Hand Tools
Start Up Procedure
1. Check all fasteners and connections for tightness.
2. Inspect the air-stream for obstructions and install filters if missing.
3. Filters must be installed in the correct direction.
4. Verify drain connections.
5. When the fan is started up, observe the operation and check for any unusual noises.
6. Inspect the entering and leaving ductwork connections. Ensure there are not leaks or pinholes in
grease duct. Grease rated duct should be continuously welded to the PCU.
7. If unit is installed on vibration isolators, ensure that the isolators are adjusted correctly leaving
plenty of spring force on the unit to absorb vibration.