Owner`s manual

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General Installation, Operation and Maintenance Instructions For Aerovent Products

IM-201

February 2005

1.0 GENERAL DESCRIPTION

1.1 DEFINITIONS

A vaneaxial fan is an axial fan with a vane section

downstream of the rotor. The vane section converts the rotat

ing component of the airflow into axial flow and pressure,

increasing the static pressure capability of the rotor.

An adjustable pitch rotor is one where the blade angle

can be changed, but only when the rotor is stationary.

A variable pitch rotor, also called controllable pitch,

is one where the blade angle can be changed while the fan is

running.

1.2 ARRANGEMENTS

Axial fans are available in two different configurations,

defined as follows:

Arrangement 4, Type 2 — The rotor is mounted

directly on the motor shaft, and the motor is upstream of the

rotor, with both rotor and motor enclosed in the fan tube.

Arrangement 4, Type 3 — The rotor is mounted

directly on the motor shaft, and the motor is upstream of the

rotor, but supported outside the fan tube.

Aerovent axial fans offer the following combinations

of these basic definitions, using the nomenclature shown:

Description AXICO

Vaneaxial Fan X

Adjustable Pitch FPDA

Variable Pitch:

Electric Control FPMC

Hand Crank Control FPMC

Pneumatic Control FPAC

Arrangement 4, Type 2 X

Arrangement 4, Type 3 X

1.3 APPLICATION

If the application requires that the inlet to the fan be

ducted, Arrangement 4 Type 3 cannot be used. All the other

arrangements are furnished with an inlet duct flange to which an

inlet duct or an inlet bell can be fastened.

Arrangement 4 Type 3 fans are ideally suited for ple

num applications with a free inlet condition as this arrange

ment can permit the fan to be placed much closer to the coils

or filters upstream.

1.4 ACCESSORIES

Various accessories are available for AXICO fans.

a. Inlet bell and screen (standard on Arrangement 4 Type 3

fans)

b. Inlet cones

c. Vane section (standard on AXICO fans)

d. Discharge diffuser sections (two types)

e. Acoustic discharge diffuser sections

f. Flexible duct connections and band clamps

g. Gravity backdraft dampers

h. Vibration isolation

1.5 OPTIONS

AXICO fans may be furnished with various options to

meet job requirements:

a. Legs for floor mounting.

b. Brackets for vertical, horizontal, or angular mounting from

the floor or ceiling.

c. Electric operator or manual hand-wheel for adjustment of

AXICO FPMC when in operation, or quadrant and clamp

adjustment when the fan is turned off

d. AXICO fan operators and positioners located at other than

top dead center

1.6 NAMEPLATE NOMENCLATURE

The model number information on each fan nameplate is

explained on page 14.

2.0 INSTALLATION

2.1 RECEIVING/INSPECTION/STORAGE

Each Aerovent fan is shipped on a wooden pallet and

is covered with plastic for weather protection.

Carefully inspect the fan upon arrival for damage

incurred during shipment. Immediately report any damage to

both the factory and the carrier.

For short-term storage prior to installation, the fan

should remain covered with plastic wrap on the shipping pallet

and stored in a clean, dry location away from the elements. If

storage is to be for a period longer than 30 days, see page 15

for long-term storage instructions.

AXICO

ANTI-STALL

(Direct Drive)

Summary of content (16 pages)

PAGE 1
IM-201 February 2005 General Installation, Operation and Maintenance Instructions For Aerovent Products AXICO® ANTI-STALL (Direct Drive) 1.0 GENERAL DESCRIPTION 1.4 1.1 DEFINITIONS A vaneaxial fan is an axial fan with a vane section downstream of the rotor. The vane section converts the rotating component of the airflow into axial flow and pressure, increasing the static pressure capability of the rotor.
PAGE 2
.2 LIFTING Aerovent fans should be lifted using slings. Note that on AXICO fans the slings should be placed under the skids, and spreader bars used as required. Under no circumstances should the vane section be used for lifting. 2.
PAGE 3
7. Set controller at a low set point for minimum pitch (3 psig branch pressure to the positioner) for direct acting. 8. Verify once again that the vibration is acceptable. 9. Increase the set point for maximum pitch and measure motor current. Check that full load current does not exceed motor nameplate data. Also verify that the vibration level at full pitch is acceptable. 10. Verify that blade pitch changes smoothly throughout the full range as the controller set point is moved.
PAGE 4
5. Reconnect air line from the diaphragm to the positioner. 6. Proceed with the positioner calibration, as described below: a. Connect a 1∕4-NPT pressure regulator to the instrument port to simulate a control pressure. b. Turn on the supply air. Adjust the regulator to 9 psig control pressure. c. The mark on the cam should point to the center of the cam follower. If not, turn spring adjusting nut to align the mark. d. Replace the cover plate and reconnect the control pressure line to the middle port. e.
PAGE 5
4. Install push rod and tighten ball joint. 5. Adjust limit switches per Section 3.2.1.3. 3.2.1.5 Actuator Pitch Adjustment The maximum and minimum blade pitch is mechanically set in the rotor. The limit switches in the actuator can be reset to reduce the range between these limits to provide different maximum and minimum airflows. This may be done as follows: 1. Remove terminal box and/or end covers from actuator as required. 2.
PAGE 6
5.0 MAINTENANCE 5.3 5.1 GENERAL Aerovent fans are a quality product designed and manufactured for minimum maintenance and long operating life. They should provide years of trouble-free service if the following maintenance procedures are followed. Aerovent fans are balanced at the factory to the following standards. NEMA has set standards for motor balance which are also shown. Bearing life and lubrication requirements are based on the NEMA standard.
PAGE 7
Figure 4. 6.0 ROTOR REPAIR & REMOVAL (Not Required For Maintenance) 6.1 FPAC Fan 1. Remove the access section as described in Section 5.7. 2. Remove the air line from the rotary union. 3. Remove the two screws holding the flexible cable bar to the rotary union. 4. Remove the 1∕2" nuts and washers around the vane section flange while supporting the vane section. 5. Slide the vane section off the fan case and remove it sideways. The rotor is now removable.
PAGE 8
4. The motor shaft bolt (62) is now visible. After removing it, the rotor can be pulled off the motor shaft. Two threaded holes are provided in the face of the hub to anchor a puller bar. 6.3 ROTOR DISASSEMBLY & INSPECTION (Not Required For Maintenance) If the rotor is to be serviced on site, proceed as fol- lows. 1. Remove the diaphragm cover and diaphragm (FPAC) or hub cover (FPMC) as per Section 6.2. 2. Remove the bolts retaining the links to the spider arms.
PAGE 9
c. Replace the nuts on the studs, maintaining the position recorded when they were removed. Tighten each jamb nut to 24 ft-lbs. 6.5 ROTOR INSTALLATION If the rotor has been removed from the shaft, obviously it must be put back in place prior to attaching the diaphragm cover to hub cover as described above. To install the rotor on the shaft, proceed as follows: 1. Clean fan shaft with solvent and apply a film of grease. Locate key in keyway. 2. Slide rotor on fan shaft.
PAGE 10
7.0 RECOMMENDED SPARE PARTS 7.1 GENERAL Spare parts may be ordered either from your Aerovent representative or directly from the factory. Prices will be quoted at time of order. Delivery can generally be made from stock. To order spare parts, specify: 1. Fan model number 2. Fan serial number 3. Part description 4. Part number 5. Quantity required The fan model and serial number is on the fan nameplate. 7.
PAGE 11
FPAC-FPMC ROTOR PARTS *Same Part for FPAC-FPMC Part Size 050 Hub Size 063 Hub 1. DIAPHRAGM COVER F300606 F300606 (FPAC ONLY) 2. SPIDER W/TEFLON INSERT F301457 F301458 *5. HUB F400811 F400811 *6. HUB FAIRING F300609 F300603 *7. SHAFT, BLADE F20132901 F20132902 8. DIAPHRAGM, FPAC F200354 F200354 3. BLADE BEARING HOUSING FPAC & FPMC F30147701 *4. BLADE SANDCAST F100461 (FAN MODELS 160, 180 & 200 ONLY) DIE CAST F101062 (FAN MODELS 080 THRU 140 ONLY) 9. PLUNGER 10. STUD — 050/063 080 11. SPRING, FPAC 12.
PAGE 12
AXICO® FPAC IMPELLER PARTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 19. 20. 21. 22. 23. 24. 26. 27. 28. 30. 31. 32. 33. 34. 35. 36. 76. 77. 78. 79. 80. 81. 82. 83.
PAGE 13
AXICO® FPMC IMPELLER MODIFICATIONS FPMC WITH BAR 59 COVER, 5 OR 6 HUB COVER, 8 HUB 61 WASHER 62 BOLT 63 BEARING HOLDER 64 ACTUATOR LINK 66 GREASE 68 BOLT 69 NUT 70 WASHER 71 BOLT 72 NUT 73 WASHER 74 FITTING, GREASE F301407 F301408 BAR JACTUATOR FPMC 46 47 48 49 50 51 52 53 54 PIN COTTER PIN CLEVIS JACTUATOR BOLT 1⁄4-20 x 1.25 NUT 1⁄4-20 WASHER 1⁄2 LOCKWASHER 1⁄4 BAR F1004306 F10031508 F100653 F10032310 F10032403 F10044603 F10044703 F201092 AXICO® FPDA IMPELLER PARTS 1. BLADE RETAINER P/N F201328 2.
PAGE 14
NEW MODEL NUMBER DESIGNATION AXICO® FANS F __ __ __ - __ - __ __ __ - __ - __ __ - __ __ __ __ - __ __ __ AXICO® = PAC = PMC = PDA ARR. 4 TYPE 2 = 2 = HORIZONTAL FLOOR LEG 4 = HORIZONTAL CEILING CLIP 6 = VERTICAL CLIP ARR. 4 TYPE 3 3 = FLOOR MOUNT FAN SIZE (cm) = 080 090 100 112 125 140 160 180 200 HUB SIZE 5 6 8 = = 50.0 cm Dia. = 63.0 cm Dia. = 80.0 cm Dia. BLADE COUNT = 8 = IF 5 OR 6 HUB 10 = IF 8 HUB MOTOR RPM = MOTOR HP = NOTES: 1.
PAGE 15
8.1 8.2 8.3 8.4 8.5 8.6 8.0 INSTRUCTIONS FOR LONG TERM STORAGE If a fan is not installed immediately upon receipt, it is the responsibility of the purchaser/user to see to it that proper procedures are followed in order to minimize deterioration which may result from idle storage. Fan equipment should be stored indoors or in a well sheltered location. The storage area must be clean and dry, well above any maximum anticipated water level.
PAGE 16
SERVICE ORGANIZATIONS Air Performance Service, Inc. 10625 Control Place Dallas, TX 75238 Phone: (972) 387-3334 Fax: (972) 991-2902 LONG Mechanical Solutions 5325 South Polaris Ave., Ste. 500 Las Vegas, NV 89118 Phone: (702) 871-4888 Fax: (702) 871-8136 DMR Associates, Inc. 16830 Oakmont Avenue Gaithersburg, MD 20877 Phone: (301) 948-0020 Fax: (301) 948-7853 LONG Mechanical Solutions 674 Salt Creek Hwy Casper, WY 82601 Phone: (307) 265-5997 Fax: (307) 265-0120 E/C Vibration & Balancing Service Ltd.