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smash into it or where stand mountings seriously 
interrupt building traffic patterns.  The number of 
units required by air volume and air changes per 
hour might need to be increased when the shape 

of a structure is such that effective capturing and 
air distribution is not possible according to the 
sizing calculations. 

FIGURE 4 

 F72 ELECTRONIC AIR CLEANER CAPACITY AND EFFICIENCY. 

 

AIR CONDITIONING 

Make certain the cooling coil is installed 
downstream from the air cleaner cabinet to 
prevent condensation and chilled air (cooler than 
50°F [10°C]) from entering the cell. 
 

HUMIDIFIERS 

Location of the system humidifier is important to 
the operation of the air cleaner.  An evaporative-
type humidifier may be installed between the 
furnace warm air duct and the return air duct 
without affecting the electronic air cleaner.  An 
atomizing-type humidifier should be installed 
downstream from the air cleaner.  If the atomizing-
type humidifier is installed upstream, mist, salts 
and minerals may decrease the efficiency of the 
electronic cell and create a need for equipment 
service. 

When the atomizing-type unit 

must

 be used 

upstream from the F72, the following precautions 
should be taken: 
 
1.  It must be installed as far from the air cleaner 

as possible. 

 
2.  A standard, disposable-type furnace filter 

should be installed between the humidifier and 
the air cleaner to trap water droplets and 
mineral salts. 

 
3.  The electronic cell must be washed frequently 

to prevent a mineral deposit buildup. 

 
 
 
 
 

 

INSTALLATION 

 

WHEN INSTALLING THIS PRODUCT 

1.  Read these instructions carefully.  Failure to 

follow them could damage the product or 
cause a hazardous condition. 

 
2.  Check the ratings given in the instructions and 

on the product to make sure the product is 
suitable for your application. 

 
3.  Installer must be a trained, experienced 

service technician. 

 

 
4.  After installation is complete, check out 

product operation as provided in these 
instructions. 

 

 

- CAUTION - 

 

Disconnect the power supply before installation to 
prevent electrical shock and equipment damage. 

 

 

Summary of Contents for F72 Series

Page 1: ...the air at a rate of 1 000 to 12 000 cfm 1 699 to 20 390 m hr in forced air systems x Rated 80 to 99 percent efficient according to the National Bureau of Standards Dust Spot Method using atmospheric...

Page 2: ...2 TABLE OF CONTENTS PAGE SPECIFICATIONS 3 PLANNING THE INSTALLATION 5 Sizing 5 Location 5 INSTALLATION 7 Wiring 8 SERVICE 11 TROUBLESHOOTING 15 PARTS LIST 17 WARRANTY 20...

Page 3: ...o the ionizer wires and 4700 Vdc to the collector positive plates The solid state power supply is self regulating so the output voltage remains constant over a wide range of cell dirt loading conditio...

Page 4: ...45 38 F72B 21 38 F72A 24 31 DUCT OPENING DUCT OPENING 2 06 2 06 21 00 STACKED 53 50 2 44 58 40 1 19 28 00 MINIMUM CLEARANCE FOR CELL REMOVAL AND SERVICE 45 38 F72B 21 38 F72A 24 31 2 44 4 10 Figure 1...

Page 5: ...usually sized according to the capacity of the air handling system and desired efficiency See Fig 4 LOCATION AND POSITION Because air handling systems vary greatly in arrangement and style factors su...

Page 6: ...F72 efficiency should be from 85 to 95 percent depending on the application and purpose see Efficiency Chart Fig 4 INDUSTRIAL APPLICATIONS Sizing is determining how many air cleaning units are requir...

Page 7: ...izing type humidifier is installed upstream mist salts and minerals may decrease the efficiency of the electronic cell and create a need for equipment service When the atomizing type unit must be used...

Page 8: ...inear 304 8 m INSTALL AIR CLEANER Mount the F72 air cleaner as follows 1 Fabricate and install the necessary vanes and transitions 2 Set the cabinet in position If hanging brackets are used make certa...

Page 9: ...match the voltage rating stamped on the front of the air cleaner CAUTION Only persons qualified to install electrical wiring should attempt this procedure All wiring must comply with applicable codes...

Page 10: ...NG BLOWER MOTOR Air cleaner is controlled by a sail switch FIGURE 9 SINGLE SPEED BLOWER MOTOR Air cleaner is controlled by the fan switch and or the fan relay FIGURE 10 F72 AIR CLEANER HOOKUP TO THREE...

Page 11: ...goggles and gloves Skin contact with either alkaline or acid detergent solution should be avoided REMOVING THE ELECTRONIC CELLS AND PREFILTERS Before the electronic cells and prefilters can be cleaned...

Page 12: ...state and local pollution control guidelines and requirements Soda ash is one neutralizer 1 Use a polyethylene or Type 316 stainless steel container large enough to hold the electronic cell Other type...

Page 13: ...pressure water an alkaline detergent should be used if allowed by the high pressure equipment manufacturer DO NOT use an acid detergent except when allowed by the equipment manufacturer 2 Steam Extre...

Page 14: ...be sure to visually check the electronic cells for bent or damaged collector plates or broken ionizing wires Bent or warped collector plates may be bent back into shape FIGURE 15 REPLACING IONIZING W...

Page 15: ...igned to speed troubleshooting and to insure the quick detection and proper repair of any malfunction in the electronic air cleaner Most of the troubleshooting steps can be performed by observing the...

Page 16: ...16 FIGURE 17 EXPLODED VIEW OF THE F72 ELECTRONIC AIR CLEANER...

Page 17: ...t Filters F72A 2 F72B 4 41113 41113 6 Cabinet Foot 21411 21411 7 Ionizer Wires 38005 38005 8 Indicator Light 10097 10097 9 High Voltage Power Supply Replacement Kit 120V 07081 07081 10 High Voltage Po...

Page 18: ...______________________________________________________________ ___________________________________________________________________________________ _____________________________________________________...

Page 19: ...______________________________________________________________ ___________________________________________________________________________________ _____________________________________________________...

Page 20: ...art shall be for a duration of time no longer than the remaining or unexpired term of the original warranty This warranty does not cover any labor or other service charges incurred by the purchaser Th...

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