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Downblast 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 noticed. The carrier will make 
notification on the delivery receipt acknowledging any 
damage to the product. All damage should be noted on 
all the copies of the bill of lading which is countersigned 
by the delivering carrier. A Carrier Inspection Report 
should be filled out by the carrier upon arrival and 
reported to the Traffic Department. If damaged upon 
arrival, file a claim with carrier. Any physical damage 
to the unit after acceptance is not the responsibility of 
Greenheck Fan Corporation.

Unpacking

Verify that all required parts and the correct quantity 
of each item have been received. If any items are 
missing, report shortages to your local representative to 
arrange for obtaining missing parts. Sometimes it is not 
possible that all items for the unit be shipped together 
due to availability of transportation and truck space. 
Confirmation of shipment(s) must be limited to only 
items on the bill of lading.

Handling

G Direct Drive

Lift unit on to the roof utilizing hooks under the lip of 
the shroud. Evenly space the hooks around the shroud 
using a minimum of four lifting straps. Use a spreader 
bar to ensure the straps do not come in contact with the 
unit (see Figure 1).

Figure 2

(4) Drive Frame 
Lifting Points

(2) Bearing Plate
Lifting Points

Hook With 
Safety Latch 
(Supplied by others)

Figure 3

Curb Cap

Screws

Screws

(

44 mm

)

1¾ in.

GB Belt Drive

When lifting the unit on to the roof, use either the four 
lifting points on the drive frame or the two lifting points 
on the bearing plate if present (see Figure 2 for lifting 
points). Access to the drive frame is accomplished by 
removing the screws pointed out in Figure 3. The cover 
can then be removed and placed on a flat surface in an 
area protected from strong winds.

When G/GB unit is on the roof, move fan to desired 
location using lifting points and fasten securely through 
mounting holes in base. Shims may be necessary 
depending upon roofing material thickness.

The motor amperage and voltage ratings must be 
checked for compatibility to supply voltage prior to 
final electrical connection. For G/GB installations, the 
electrical supply should be routed through the conduit 
chase located between the curb cap and the bottom of 
the motor compartment. Wiring must conform to local 
and national codes.

Figure 1

Lifting Strap

Hook

Spreader Bar

®

Содержание G 060

Страница 1: ... the National Electrical Code NEC and the National Fire Protection Agency NFPA where applicable Follow the Canadian Electrical Code CEC in Canada 2 The rotation of the wheel is critical It must be free to rotate without striking or rubbing any stationary objects 3 Motor must be securely and adequately grounded 4 Do not spin fan wheel faster than max cataloged fan RPM Adjustments to fan speed signi...

Страница 2: ...the bill of lading Handling G Direct Drive Lift unit on to the roof utilizing hooks under the lip of the shroud Evenly space the hooks around the shroud using a minimum of four lifting straps Use a spreader bar to ensure the straps do not come in contact with the unit see Figure 1 Figure 2 4 Drive Frame Lifting Points 2 Bearing Plate Lifting Points Hook With Safety Latch Supplied by others Figure ...

Страница 3: ...from leaking into the fan The fan should be elevated on an adequate number of wooden blocks so that it is above water and snow levels and has enough blocking to prevent it from settling into soft ground Locate parts far enough apart to permit air circulation sunlight and space for periodic inspection To minimize water accumulation place all fan parts on blocking supports so that rain water will ru...

Страница 4: ... 5 Secure fan to curb using a minimum of eight lag screws metal screws or the suitable fasteners Shims may be required depending upon curb installation and roofing material Note Severe duty applications may require additional fasteners 6 Verify power line wiring is de energized before connecting fan motor to power source 7 Connect power supply wiring to the motor as indicated on the motor nameplate...

Страница 5: ...200 200HP 30 762 18 457 20 521 138 63 GB 220 220HP 240 240HP 34 864 24 610 26 673 158 72 GB 260 40 1016 30 762 32 826 305 138 GB 300 300HP 40 1016 30 762 32 826 320 145 GB 330 46 1168 36 914 38 978 385 175 GB 360 360HP 46 1168 36 914 38 978 403 183 GB 420 52 1321 42 1067 44 1130 495 225 GB 480 52 1321 48 1219 50 1283 623 283 GB 500 64 1626 54 1372 56 1435 687 312 GB 540 64 1626 54 1372 56 1435 748...

Страница 6: ...10 GB 180 240 3 8 10 GB 260 540 1 2 13 Pre Starting Checks 1 Check all fasteners and set screws for tightness The wheel should rotate freely and be aligned as shown in Figure 7 below 2 Wheel position is preset and the unit is test run at the factory Movement may occur during shipment and realignment may be necessary 3 Only G unit Centering height alignment can be accomplished by loosening the set ...

Страница 7: ...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 motor mounting bolts Adjust and tighten as necessary 24 Hour Interval Check all internal components On GB unit only inspect belt alignment and tension Adjust and tighten as necessary Maintenance G GB Installation and maintenance a...

Страница 8: ...S A Inc Chevron SRI Grease 2 Mobil Oil Corporation Mobilith Mobil 532 Texaco Inc Premium BRB 2 Texaco Multifak 2 Amoco Oil Co Rykon Premium 2 Exxon Unirex N2 Shell B Shell Alvania 2 Table 2 Suggested Fan Bearing Greasing Intervals Interval months Type of Service 1 to 3 Heavy duty in dirty dusty locations high ambient temperatures moisture laden atmosphere vibration 3 to 6 12 to 24 hours per day he...

Страница 9: ...ypass dampers Check filters and access doors Fan does not operate Electrical supply Check fuses circuit breakers Check for switches off Check for correct supply voltage Drive Check for broken belts Tighten loose pulleys Motor Assure motor is correct horsepower and not tripping overload protector Motor overloads or overheats Lubrication Check for excessive or insufficient grease in the bearing Mechan...

Страница 10: ..._____ _________________________________________________ Date ___________________Time _____________ AM PM Notes ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM PM Notes ________________________________________...

Страница 11: ...y Drive Frame Assembly Conduit Chase Shock Mounts Shroud Vertical Support Bearings G Direct Drive Centrifugal Roof Exhaust Fan GB Belt Drive Centrifugal Roof Exhaust Fan Parts List NOTE Each fan bears a manufacturer s nameplate with model number and serial number embossed This information will assist the local representative and the factory in providing service and replacement parts Before taking ...

Страница 12: ...ry under Warranties Greenheck Centrifugal Roof Downblast Exhaust Fan catalog provides additional information describing the equipment fan performance available accessories and specification data Phone 715 359 6171 Fax 715 355 2399 Parts 800 355 5354 E mail gfcinfo greenheck com Website www greenheck com Our Commitment AMCA Publication 410 96 Safety Practices for Users and Installers of Industrial a...

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