Page 2 - Receiving; G Direct Drive; Figure 2; Figure 3; GB Belt Drive; Figure 1
2 Model G/GB Centrifugal Roof Exhaust Fans ® Receiving Upon receiving the product, check to make sure all items are accounted for by referencing the bill of lading to ensure all items were received. Inspect each crate for shipping damage before accepting delivery. Notify the carrier if any damage is...
Page 3 - Storage; Indoor; Inspection and Maintenance; 11M Rust Preventive,; Removing From Storage
3 Model G/GB Centrifugal Roof Exhaust Fans ® Storage Fans are protected against damage during shipment. If the unit cannot be installed and operated immediately, precautions need to be taken to prevent deterioration of the unit during storage. The user assumes responsibility of the fan and accessori...
Page 4 - WARNING; Installation; Typical Roof Mounting Installation; Note: Severe duty applications may require; Typical Wiring Diagram; for complete wiring and
4 Model G/GB Centrifugal Roof Exhaust Fans ® WARNING Installation, troubleshooting and parts replacement is to be performed only by qualified personnel. WARNING Disconnect power before installing or servicing. CAUTION A fan manufactured with an explosion resistant motor does not certify the entire u...
Page 6 - Model GB; Wheel Overlap and Gap Dimensions; Figure 7; Wheel Rotation; Figure 8; Belts; Figure 9
6 Model G/GB Centrifugal Roof Exhaust Fans ® WARNING Correct direction of wheel rotation is critical. Reversed rotation will result in poor air performance, motor overloading and possible burnout. WARNING The fan has been checked for mechanical noises at the factory prior to shipment. If mechanical ...
Page 7 - IMPORTANT; Inspection; 0 Minute Interval; Deflection; Fasteners
7 Model G/GB Centrifugal Roof Exhaust Fans ® IMPORTANT Adjust (tighten) belt tension after the first 24-48 hours of operation. Inspection Inspection of the fan should be conducted at the first 30 minute and 24 hour intervals of satisfactory operation. 30 Minute Interval Inspect bolts, setscrews and ...
Page 8 - Belt/Bearing Maintenance GB Unit; Chevron SRI Grease #2; Fan Inlet Connections; Recommended Relubrication
8 Model G/GB Centrifugal Roof Exhaust Fans ® Belt/Bearing Maintenance GB Unit 1. Belts tend to stretch after a period of time. They should be checked periodically for wear and tightness. When replacing belts, use the same type as supplied with the unit. 2. Matched belts should always be used on unit...
Page 9 - Troubleshooting; PROBLEM
9 Model G/GB Centrifugal Roof Exhaust Fans ® Troubleshooting WARNING: Before taking any corrective action, make certain unit is not capable of operation during repairs. PROBLEM CAUSE CORRECTIVE ACTION Excessive noise or vibration Wheel rubbing inlet Adjust wheel and/or inlet cone. Tighten wheel hub ...
Page 10 - Maintenance Documentation; Date; Job Information
10 Model G/GB Centrifugal Roof Exhaust Fans ® Maintenance Documentation Maintenance Log Date Time Notes Job Information Job Name: __________________________________ Service Organization: _________________________________Address: ___________________________________ Address: __________________________...
Page 11 - Parts List; NOTE; G Direct Drive Centrifugal Roof Exhaust Fan
11 Model G/GB Centrifugal Roof Exhaust Fans ® Parts List NOTE Each fan bears a manufacturer’s name- plate with model number and serial number embossed. This information will assist the local Greenheck representative and the factory in providing service and replacement parts. Before taking any correc...
Page 12 - Greenheck Catalog G/GB provides additional information; Warranty; AMCA Publication 410-96, Safety Practices for Users and; Roof Curb Installation
12 471558 • Model G/GB IOM, Rev. 3, October 2010 Copyright 2010 © Greenheck Fan Corp. Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year from the shipment date. Any units or parts which prove defective during the warranty period will be rep...