Greenheck Fan Centrifugal Sidewall Exhaust Fans CW/CWB user manual

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PN 457691
®
Models CW/CWB
Centrifugal Sidewall Exhaust Fans
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble,
install, operate or maintain the product described. Protect yourself and others by observing all safety
information. Failure to comply with instructions could result in personal injury and/or property damage!
Model CW Model CWB
Belt Drive
Direct Drive
Model CWB is a belt drive cent

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CW - Direct Drive Dimensions B** Damper Mounting Wall Damper Model A B** C Frame Bolt Opening Size Size Circle 3 1 3 1 3 CW-060, 065, 18 ⁄8 13 ⁄2 14 ⁄4 8 ⁄2 8 11 ⁄4 10 (254) 070, 075 (467) (343) (375) (216) (203) (298) 3 7 1 CW-080, 085, 21 13 ⁄8 17 ⁄8 10 ⁄2 10 12 15 090 (533) (340) (454) (267) (254) (305) (381) 1 7 1 21 15 ⁄4 17 ⁄8 10 ⁄2 10 12 15 C A CW-095 (533) (387) (454) (267) (254) (305) (381) 7 1 3 1 7 CW-098, 101, 24 ⁄8 28 ⁄4 19 ⁄4 12 ⁄2 12 14 16 ⁄8 121, 131 (632) (718) (502) (318)

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(wide temperature swings may cause condensation in a similar fashion until the fan equipment goes into and “sweating” of metal parts). All accessories must be operation. stored indoors in a clean, dry atmosphere. Installation Remove any accumulations of dirt, water, ice, or snow These fans exhaust directly away from the building, and wipe dry before moving to indoor storage. To therefore their location and placement should be avoid “sweating” of metal parts, allow cold parts to analyzed. P

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Pre-Starting Checks 6 DECAL 1. Check all fasteners and setscrews for tightness. The wheel should rotate freely and be aligned as Caulking TOP DETAIL shown in figure 7. 3 2. Wheel position is preset and the unit is test run at the factory. Movement may occur during shipment and realignment may be necessary. 5 Wheel Overlap and Gap Dimensions DETAIL Model G - Overlap in (mm) H - Gap in (mm) 4 060-095 – 3/32 (2) 6 098-161 1/4 (6) – 3. Once the mounting plate has been attached to the 180-300

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WARNING WARNING Correct direction of wheel rotation is critical. The fan has been checked for mechanical noises at Reversed rotation will result in poor air the factory prior to shipment. If mechanical noise performance, motor overloading and possible should develop, suggested corrective actions are burnout. offered in the Troubleshooting section. IMPORTANT Model CWB Over tightening will cause excessive bearing wear Pre-Starting Belt Tension Checks and noise. Too little tension will cause

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Inspection: CW/CWB WARNING Inspection of the fan should be conducted at the Always disconnect, lock and tag power source before first 30 minute and 24 hour intervals of satisfactory servicing. Failure to disconnect power source can operation. result in fire, shock or serious injury. 30 Minute Interval CAUTION Inspect bolts, setscrews and motor mounting bolts. Uneven cleaning of the wheel will produce an out of Adjust and tighten as necessary. balance condition that will cause vibration in

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Recommended Relubrication Table 3: Grease Manufacturers Manufacturer Grease (NLGI #2) Frequency in Months U.S. Electric Motors Grease No. 83343 NOTE: If unusual environment conditions exist (extreme temperature, moisture or contaminants) more Chevron U.S.A. Inc Chevron SRI Grease #2 frequent lubrication is required. Mobilith Mobil Oil Corporation A good quality lithium base grease, conforming to Mobil 532 NLGI Grade 2 consistency, such as those listed here Premium BRB #2 Texaco, Inc. may be

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CWB Belt Drive Centrifugal Sidewall Exhaust Fan Windband Birdscreen Motor Compartment Mounting Plate Wheel Cover Breather Tube Troubleshooting WARNING: Before taking any corrective action, make certain unit is not capable of operation during repairs. PROBLEM CAUSE CORRECTIVE ACTION Bad Bearings Replace. Clean and remove all dirt buildup off wheel. Check wheel Wheel unbalance balance, rebalance in place if necessary. Belts too tight or too loose Adjust tension, see figure 12a-b. Excessive Noise