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Open Plenum Array

3

To ensure a successful installation, the instructions in this manual should be read and adhered to. Failure to comply 
with proper installation procedures may void the warranty.

Unit and System Identification Tags

Each array has a permanently affixed manufacturer’s engraved metal nameplate 
containing the model number and individual serial number.
The tag shown is an example of an identification nameplate on the array. The 
information provides general details about the fan, as well as containing specific 
information unique to the unit. When contacting the local sales representative 
with future needs or questions, please have the information on this label available. 
Tags are mounted in an area which is clearly visible, usually on the side of the fan array.

Pre-Installation Information

Before installation, it is important to be certain the mounting surface will bear the operating weight of the unit. For 
proper unit operation, it is also important that it be operated in a completely level position. Leveling shims may be 
required for proper installation. See next page. 
For further details on safety practices involving industrial and commercial fans, please refer to AMCA 
Publication 410.

Moving Parts

All moving parts must have guards to protect personnel. Refer to local codes for requirements as to the number, type 
and design. Fully secure the wheel before performing any maintenance. The wheel may start “free wheeling” even 
if all electrical power has been disconnected. Before the initial start-up or any restart, check the following items to 
make sure that they are installed and secure.
•  Do not spin the wheel faster than the maximum cataloged fan RPM. 
•  Adjustments to fan speed significantly affects 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.

Air Pressure and Suction

In addition to the usual hazards associated with rotating machinery, arrays also create a dangerous suction at the 
inlet. Special caution needs to be used when moving around an array, whether it is in operation or not. Before start-
up, make sure the inlet area is clear of personnel and loose objects.

General Information

Rigging and Lifting

Arrays are to be rigged and moved by the lifting brackets and/or lifting points provided or 
by the skid when a forklift is used. Handle in such a manner as to keep from scratching or 
denting. Damage may reduce the ability of array to resist corrosion.
•  Use standard lifting and rigging practices. Use of a spreader bar is recommended.
•  

ALL

 lifting brackets on each component must be utilized at the same time.

CAUTION

Arrays should never be lifted by the shaft, motor, 
guards or accessories.

Lifting Points

Damper

Содержание OPA

Страница 1: ...ser le moteur refroidir avant toute maintenance ATTENTION Faire preuve de précaution dans les atmosphères explosives Only qualified personnel should install this array 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 wel...

Страница 2: ...he array 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 F 1 C and 110 F 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 or debris a...

Страница 3: ...protect personnel Refer to local codes for requirements as to the number type and design Fully secure the wheel before performing any maintenance The wheel may start free wheeling even if all electrical power has been disconnected Before the initial start up or any restart check the following items to make sure that they are installed and secure Do not spin the wheel faster than the maximum catalo...

Страница 4: ... others All supply and or signal wiring should be secured to the array structure CAUTION When installing an array ensure the proper protective devices are used to protect personnel from moving parts and other hazards A complete line of protective accessories are available from the manufacturer Installation Example of Shim Stock Electrical Connections Before electrical connections are made the supp...

Страница 5: ...77 Taper Lock Bushing Installation Removal To Install Taper Lock Bushings 1 Clean shaft bore and outside of bushing and bore of hub taking bushings from hub if already assembled Remove any oil grease and dirt 2 Place hub onto shaft Slip bushing onto shaft and into hub Oil threads and points of setscrews or threads and under heads of capscrews DO NOT lubricate the hub bore or the outside of the bus...

Страница 6: ...rews and locking collars on the array bearings drive motor base and accessories for tightness 5 Rotate the wheel by hand and assure no parts are rubbing Remove any dirt or debris that may have accumulated during installation 6 Check all guarding if supplied for being securely attached and not interfering with rotating parts 7 Check all electrical connections for proper attachment 8 Check for obstr...

Страница 7: ...or at least bumped every thirty days It is preferred that each array is run as this causes all electrical and mechanical components to get up to temperature displacing any formed condensation redistributes load on bearings and redistributes grease in the bearings motor and shaft bearings CAUTION Always check the fan RPM when adjusting the operating frequency Do not exceed maximum class fan RPM of ...

Страница 8: ...el rubbing inlet Adjust wheel and or inlet cone Tighten wheel hub or bearing collars on shaft Wheel unbalance Clean all dirt off wheel Check wheel balance rebalance in place if necessary Low CFM Fan Check wheel for correct rotation Increase fan speed Duct system Check duct installations with poor inlet or discharge configurations High CFM Fan Decrease fan speed High Horsepower Fan Check rotation o...

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