Grain-systems Bin Accessories PNEG-1738 User Manual download pdf (Page 11)

PNEG-1738 15'-135' “X” Series Roof Stairs, Peak and Manway Guard 11

3. Decals

The manufacturer does not warrant any roof damage caused by excessive vacuum or internal

pressure from fans or other air moving systems. Adequate ventilation and/or “makeup air” devices

should be provided for all powered air handling systems. The manufacturer does not recommend

the use of downward flow systems (suction). Severe roof damage can result from any blockage of

air passages. Running fans during high humidity/cold weather conditions can cause air exhaust

or intake ports to freeze.

Excessive vacuum (or pressure) may

damage roof. Use positive aeration

system. Make sure all roof vents are

open and unobstructed. Start roof

fans when supply fans are started.

Do not operate when conditions exist

that may cause roof vent icing.

DC-969

CAUTION

GSI Group, Inc. 217-226-4421

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Grain-systems Bin Accessories PNEG-1738 User Manual Page 11