Grain Systems PNEG-591 - Manual (Page 5)

5
Series 2000 Downwind Heater
SAFETY
Roof Damage Warning And Disclaimer
GSI DOES NOT WARRANT ANY ROOF DAMAGE
CAUSED BY EXCESSIVE VACUUM OR INTERNAL PRES-
SURE FROM FANS OR OTHER AIR MOVING SYSTEMS.
ADEQUATE VENTILATION AND/OR "MAKEUP AIR" DE-
VICES SHOULD BE PROVIDED FOR ALL POWERED AIR
HANDLING SYSTEMS. GSI DOES NOT RECOMMEND
THE USE OF DOWNWARD FLOW SYSTEMS (SUCTION).
SEVERE ROOF DAMAGE CAN RESULT FROM ANY
BLOCKAGE OF AIR PASSAGES. RUNNING FANS DUR-
ING HIGH HUMIDITY/COLD WEATHER CONDITIONS
CAN CAUSE AIR EXHAUST OR INTAKE PORTS