Greenheck USGF Installation Manual

PN 462077

Ultimate Steel Grease Fan

Installation, Operation and Maintenance Manual

Please read and save these instructions. 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! Retain instructions for future reference.

Model USGF Ultimate Steel Grease Fan

Model USGF is a belt drive upblast centrifugal exhaust fan. These fans are speciﬁcally designed for high grease applications. Fans are Miami‑Dade approved for high‑velocity hurricane zones, NOA# 07‑0503.07. Performance capabilities range up to 6,800 cfm (11,500 m3/hr) and up to 3.25 in. wg (810 Pa) of static pressure. The maximum continuous operating temperature is 400°F (204.4°C). Model USGF is available in nine sizes, 140‑200HP with nominal wheel diameter ranging from 14 to 20 inches (356 to 508 mm). Each fan shall bear a permanently afﬁxed manufacturer’s engraved metal nameplate containing the model number and individual serial number.

General Safety Information

Only qualiﬁed personnel should install this fan. Personnel should have a clear understanding of these instructions and should be aware of general safety precautions. Improper installation can result in electric shock, possible injury due to coming in contact with moving parts, as well as other potential hazards. Other considerations may be required if high winds or seismic activity are present. If more information is needed, contact a licensed professional engineer before moving forward.

DANGER

Always disconnect, lock and tag power source before installing or servicing. Failure to disconnect power source can result in ﬁre, shock or serious injury.

CAUTION

When servicing the fan, motor may be hot enough to cause pain or injury. Allow motor to cool before servicing.

CAUTION

Precaution should be taken in explosive atmospheres.

1. Follow all local electrical and safety codes, as well as the National Electrical Code (NEC) and the National Fire Protection Agency (NFPA), where applicable. Follow the Canadian Electric Code.

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 signiﬁcantly effects motor load. If the fan RPM is changed, the motor current should be checked to make sure it is not exceeding the motor nameplate amps.

5. Do not allow the power cable to kink or come in contact with oil, grease, hot surfaces, or chemicals. Replace cord immediately if damaged.

6. Verify that the power source is compatible with the equipment.

7. Never open access doors to a duct while the fan is running.

Model USGF Ultimate Steel Grease Fan

Receiving

(4) Drive Frame Lifting Points

(2) Bearing Plate Lifting Points

Hook With Safety Latch (Supplied by others)

Screw

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

When lifting the unit onto 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 1 for lifting points. Access to the drive frame is accomplished by removing the screws pointed out in ﬁgure 2. The cover can then be removed and placed on a ﬂat surface in an area protected from strong winds.

Figure 1

The motor amperage and voltage ratings must be checked for compatibility to supply voltage prior to ﬁnal electrical connection. Wiring must conform to local and national codes. Consult local code authorities for speciﬁc requirements.

CAUTION

Do not lift by the fan hood. Avoid lifting fans in a way that will bend or distort fan parts. Never pass slings or timbers through the venturi of fan. Fans with special coatings or paints must be protected in handling to prevent damage.

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 accessories while in storage. The manufacturer will not be responsible for damage during storage. These suggestions are provided solely as a convenience to the user.

Indoor

The ideal environment for the storage of fans and accessories is indoors, above grade, in a low humidity atmosphere which is sealed to prevent the entry of blowing dust, rain or snow. Temperatures should be evenly maintained between 30° to 110°F (-1° to 43°C) (wide temperature swings may cause condensation and “sweating” of metal parts). All accessories must be stored indoors in a clean, dry atmosphere.

Remove any accumulations of dirt, water, ice, or snow and wipe dry before moving to indoor storage. Allow cold parts to reach room temperature to avoid “sweating” of metal parts. To dry parts and packages use a portable electric heater to get rid of any moisture buildup. Leave coverings loose to permit air circulation and to allow for periodic inspection.

The unit should be stored at least 3½ inches (89 mm) off the floor on wooden blocks covered with moisture proof paper or polyethylene sheathing. Aisles between parts and along all walls should be provided to permit air circulation and space for inspection.

Figure 2

When the USGF unit is on the roof, move fan to desired location using lifting points and fasten securely according to mounting details shown in ﬁgure 9 on page 5. Shims may be necessary depending upon rooﬁng material thickness.

Model USGF Ultimate Steel Grease Fan

Outdoor

Fans designed for outdoor applications may be stored outdoors if absolutely necessary. Roads or aisles for portable cranes and hauling equipment are needed.

The fan should be placed on a level surface to prevent water 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 run off.

Do not cover parts with plastic ﬁlm or tarps as these cause condensation of moisture from the air passing through heating and cooling cycles.

MOTOR

115/208-230/60/1

208-230/460/60/3

MOTOR

J-BOX

SUPPLY VOLTAGE

Fan wheels should be blocked to prevent spinning caused by strong winds.

Inspection and Maintenance During Storage

While in storage, inspect fans once per month. Keep a record of inspection and maintenance performed.

If moisture or dirt accumulations are found on parts, the source should be located and eliminated. At each inspection, rotate the wheel by hand ten to ﬁfteen revolutions to distribute lubricant in motor and bearings. If paint deterioration begins, consideration should be given to touch‑up or repainting. Fans with special coatings may require special techniques for touch‑up or repair.

Machined parts coated with rust preventive should be restored to good condition promptly if signs of rust occur. Immediately remove the original rust preventive coating with petroleum solvent and clean with lint‑free cloths. Polish any remaining rust from surface with crocus cloth or ﬁne emery paper and oil. Do not destroy the continuity of the surfaces. Thoroughly wipe clean with Tectyl® 506 (Ashland Inc.) or the equivalent. For hard to reach internal surfaces or for occasional use, consider using Tectyl® 511M Rust Preventive, WD‑40® or the equivalent.

WARNING

Disconnect power before installing or servicing.

WARNING

Installation, troubleshooting and parts replacement is to be performed only by qualiﬁed personnel. Consult and follow NFPA 96 recommendations. NFPA 96 instructions supercede this document.

Installation

General Roof Mounting Installation

1. On the roof surface, cut an appropriate sized hole and follow manufacturer’s instructions on curb installation, refer to page 4. Caulk and ﬂash the curb to ensure a water tight seal.

2. Remove motor cover. Access to the motor compartment is accomplished by removing the screws as shown in ﬁgure 2. The cover can then be removed and placed on a ﬂat surface in an area protected from strong winds.

3. On the drive frame use the lifting lugs to lift and place the unit on top of roof curb. (Refer to ﬁgure 1 on page 2).

4. Secure fan to curb according to mounting details, refer to page 5.

5. Verify power line wiring is de‑energized before connecting fan motor to power source.

6. Connect power supply wiring to the motor as indicated on the motor nameplate or terminal box cover. Check the power source for compatiblity with the requirements of your equipment.

7. Check fan wheel for free rotation and re‑center if necessary.

8. Check all fasteners for tightness.

9. Mount and wire safety disconnect switch under motor cover. Wire control switches at ground level, refer to ﬁgure 3.

Typical Wiring Diagram

Figure 3

10. Replace motor cover.

11. For NFPA ‑ restaurant applications: the electrical supply must enter the motor compartment through the breather tube. For other non‑ﬂammable applications the electrical supply can be routed throught the conduit chase between the curb cap and the bottom of the motor compartment. Consult local code authorities for specific requirements.

12. A drain trough is provided on all USGF fans for single‑point drainage of water and residue. Some means for collection of this residue must be provided, either a container directly under the trough or use of an adapter and pipe to carry the residue to a remote collection point. An optional grease trap with water separator bafﬂes is available from your Greenheck representative.

13. A Clean‑Out Port and hinging curb cap are also provided on all USGF’s. They aid the cleaning process through additional access to the wheel. The USGF is designed for the worst cooking conditions, such as char broilers, solid fuel cooking or oriental cooking. Table 1 shows the suggested Exhaust System Inspection Schedule published in NFPA 96.

Table 1: Exhaust System Inspection Schedule

Type or Volume of Cooking Frequency Check

Systems serving solid fuel cooking operations

Systems serving high‑volume cooking operations, such as 24 hour cooking, char broiling, or wok cooking

Systems serving moderate‑volume cooking operations

Systems serving low‑volume cooking operations, such as churches, day camps, seasonal business, or senior centers

14. Clean‑Out Port: Position Clean‑Out Port so it is on the side of unit when hinged open, see figure 4.

15. Hinged Curb Cap: During installation of the hinge curb cap kit, it is important not to allow the fan to go beyond 90º, see figure 5.

Figure 5

Model USGF Ultimate Steel Grease Fan

Monthly

Quarterly

Semiannually

Annually

Figure 4

Typical Installation for Concrete Deck Anchoring

Corner Detail

1¼ in. (32 mm)

Figure 6

Typical Installation for Metal Building/Steel Deck Anchoring

Corner Detail

1¼ in. (32 mm)

Figure 7

H-GPF Curb Height 8 to 18 in. (203 to 457 mm) (Optional 24 in. (610 mm) SD Curb)

Minimum Concrete Strength of 2000 PSI

Minimum 1¾ in. (44 mm) edge distance

H-GPF Curb Height 8 to 18 in. (203 to 457 mm) (Optional 24 in. (610 mm) SD Curb)

Roof Truss

Outside of Roof Curb

1 in. (25 mm) less than Fan Curb Cap

1 in. (25 mm) Insulation

Roof Opening

5 in. (127 mm) Mounting Flange

Outside Flange

Outside of Roof Curb

1 in. (25 mm) less than

Fan Curb Cap

1 in. (25 mm) Insulation

Roof Opening

Minimum 12 ga Steel

5 in. (127 mm) Mounting Flange

Outside Flange

Use 3⁄8 in. (10 mm) expansion anchor or equal into concrete. Fasteners one on each corner as detailed. Each side at center of unit. Maximum fastener spacing of 8 in. (203 mm), add additional fasteners to satisfy.

21⁄2 in. (64 mm) Embedment Recommended minimum 15⁄8 in. (41 mm)

Center fasteners on ﬂange

Use #12-14 self-drilling screws or equal. Fasteners one on each corner as detailed. Each side at center of unit. Maximum fastener spacing of 8 in. (203 mm), add additional fasteners to satisfy.

Corrugated Roof Deck

Center fasteners on ﬂange

Corner Detail

1¼ in. (32 mm)

Figure 8

Model Size Curb Cap Size Roof Opening

USGF‑141 ‑ 160HP 26 x 26 (559 x 559) 18½ x 18½ (470 x 470) 5 35 x 35 (889 x 887)

USGF‑180 ‑ 200HP 30 x 30 (762 x 762) 20½ x 20½ (521 x 521) 7 39 x 39 (991 x 991)

All dimensions shown are in inches (millimeters).

Typical Installation for Wood Deck Anchoring

Outside of Roof Curb

1 in. (25 mm) less than

Fan Curb Cap

H-GPF Curb Height 8 to 18 in. (203 to 457 mm) (Optional 24 in. (610 mm) SD Curb)

Wood Decking

Wood Support Member Nominal 2 x 4, 6, 8

1 in. (25 mm) Insulation

Roof Opening

5 in. (127 mm) Mounting Flange

Outside Flange

Number of Screws

(per side)

Use #12 Wood Screws or equal into minimum No. 1/No. 2 Southern Pine wood support.

Fasteners one on each corner as detailed. Each side at center of unit. Maximum

fastener spacing of 6 in. (152 mm), add additional fasteners to satisfy.

2 in. (51 mm) Minimum Embedment

Center fasteners on ﬂange

Outside Flange

Model USGF Ultimate Steel Grease Fan

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