Honeywell F90a1050 Product Data
Commercial Electronic Air Cleaner
APPLICATION
The F90A,B Self-Contained Commercial Electronic Air
Cleaners are ceiling-mounted and remove airborne
contaminants such as tobacco and cooking smoke, dust,
pollen, bacteria, and larger viruses from the air circulated
through the unit.
F90A,B
Self-Contained
PRODUCT DATA
FEATURES
• Removes up to 95 percent of the staining dirt from the
air, as measured by the Initial Dust Spot Method using
atmospheric dust; refer to the American Society of
Heating, Refrigerating, and Air Conditioning Engineers
(ASHRAE) Standard 52-76.
•Provides Coanda air distribution by drawing in dirty air
from below, cleaning it electronically, and discharging
the clean air in four directions parallel with the ceiling.
• Three-speed fan circulates up to 1250 cfm (35 m3/min)
for F90A and 550 cfm (15.5 m3/min) for F90B.
• Solid state power supply is self-regulating, maintains
peak efficiency over a wide range of cell dirt loading
conditions, and provides nonlethal current levels.
• Interlock switch prevents operation when the cover is
open or the grille is not in place.
• Heavy duty commercial cells, prefilter, and grille are
removable for cleaning.
• Three-position adjustable discharge louvers control
the direction of discharged air.
• Light emitting diodes (LEDs) indicate ON and CHECK;
WASH LED optional.
•Test button shows presence of high voltage.
•Available with gray finish or woodgrain with black trim.
• Optional hard-wired remote control assembly (part
number 190097B).
• Optional remote transmitter (S6057B1001) controls the
F90 when an infrared receiver is installed.
• Optional carbon filters (part number 202614) for ozone
and odor control.
• Honeywell has been designing, manufacturing and
selling electronic air cleaners since 1959.
® U.S. Registered Trademark
Copyright © 1997 Honeywell Inc. • All Rights Reserved
Contents
Application........................................................................... 1
Features .............................................................................. 1
Specifications ...................................................................... 2
Ordering Information ........................................................... 2
Planning the Installation ...................................................... 3
Installation ........................................................................... 6
Checkout ............................................................................. 12
Adjustments ........................................................................ 12
Service ................................................................................ 12
Electrical Troubleshooting ................................................... 16
Replacement Parts List/Exploded View .............................. 22
68-0103-4
F90A,B SELF-CONTAINED COMMERCIAL ELECTRONIC AIR CLEANER
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
a particular unit may not exactly match the listed
specifications. Also, this product is tested and
calibrated under closely controlled conditions, and
some minor differences in performance can be
expected if those conditions are changed.
Model:
F90A,B Self-Contained Commercial Electronic Air Cleaners.
Contains one or two FC37B heavy duty commercial cells, a
power supply assembly, one or two prefilters, cover with grille,
a power and speed control switch, a performance selection
switch, a test button, a three-speed motor driven fan, an
interlock switch for the cover and grille, a power cord, and
LED indication of system operation.
Color:
Available with gray finish or woodgrain with black trim.
Solid State Power Supply Assembly:
F90A, 120 Vac, 60 Hz: 203361E
F90A, 220/240 Vac, 50 Hz: 203361J
F90B, 120 Vac, 60 Hz: 203361G
Electrical Ratings:
Voltage and Frequency (specify when ordering):
120 Vac, 60 Hz
220/240 Vac, 50 Hz
Current and Power Consumption:
Fan
Model
F90A, 120 Vac,
60 Hz
F90A, 220/240 Vac,
50 Hz
F90B, 120 Vac,
60 Hz
Air Flow Capacity:
Model Fan Setting cfm m3/minute
F90A HI 1250 35.0
MED 1020 29.0
LOW 800 23.0
F90B HI 550 15.5
MED 310 8.8
LOW 205 5.8
Efficiency:
Up to 92% efficient as measured by the Initial Dust Spot
Method using atmospheric dust, according to the American
Society of Heating, Refrigeration, and Air Conditioning
Engineers (ASHRAE) Standard 52-76.
Setting
HI 2.6 270
MED 2.0 215
LOW 1.8 185
HI 1.4 270
MED 1.0 215
LOW 0.8 185
HI 1.4 160
MED 1.3 135
LOW 1.1 105
Current
(A)
Power
(W)
Ambient Temperature Rating:
Shipping and Storage: -20°F to +120°F (-29°C to +49°C).
Operating: The F90 is intended for use at ambient
temperatures that usually are not higher than 90°F
(32°C) but for brief periods, may be as high as 120°F
(49°C))
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Relations
Honeywell, 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
68-0103—4
2
F90A,B SELF-CONTAINED COMMERCIAL ELECTRONIC AIR CLEANER
8
(203)
24
(610)
LATCHES
POWER
CORD
1
M919
ALLOW AT LEAST 9 INCHES (229 MILLIMETERS) FROM BACK
OF F90B TO WALL FOR REMOVAL OF COVER.
7 (178)
1
2
2
ALLOW AT LEAST 16 INCHES (406 MILLIMETERS) FROM FRONT
OF F90B TO WALL FOR INSTALLATION AND REMOVAL OF CELLS.
3 (76)
16
(406)
5-3/4 (146)
3-1/4
(83)
29-1/4
(743)
19-1/4 (489)
14-1/2 (386)
Shipping and Installation Weight:
Model Pounds Kilograms
F90A Heavy Duty
Commercial Cell
Shipping Weight 70.0 31.5
Installed Weight 65.0 29.5
F90B Heavy Duty
Commercial Cell
Shipping Weight 42.0 18.9
Installed Weight 36.0 16.2
Dimensions:
See Figs. 1 and 2.
Approvals:
Underwriters Laboratories Inc. listed: File No. E30954,
Guide No. AGGZ (120 Vac units only).
Canadian Standards Association listed: File No. LR19060
(120 Vac units only).
U.S. FCC Class B limits for RFI, Computing Devices Rules,
Canadian EMI Standard.
9.2 (each) 4.2 (each)
9.2 4.2
Replacement Parts and Accessories:
See Parts List on page 22.
POWER
CORD
7/8 (22)
DIAMETER
KNOCKOUT
29-1/4
(743)
24
16
(610)
(406)
LATCHES
5-3/4 (146)
7 (178)
1
2
1
ALLOW AT LEAST 16 INCHES (406 MILLIMETERS) FROM FRONT
OF F90 TO WALL FOR INSTALLATION AND REMOVAL OF CELLS.
ALLOW AT LEAST 9 INCHES (229 MILLIMETERS) FROM BACK
OF F90 TO WALL FOR REMOVAL OF COVER.
4
(102)
29-1/4 (743)
Fig. 1. F90A installation dimensions in in. (mm).
24 (610)
16 (406)
1 INCH RADIUS
2 (51)
M1530
Fig. 2. F90B installation dimensions in in. (mm).
PLANNING THE INSTALLATION
WARNING
Explosion Hazard.
Can cause property damage, severe injury, or
death.
1. Do not install or use the F90 where there is any
danger of gas, vapor, or dust explosion.
2. Do not install or use the F90 if explosion-proof
electrical fixtures are specified.
Application and Operation
The F90 Self-Contained Electronic Air Cleaner is used where
2
overhead air cleaning is required (restaurants, conference
rooms, lounges, and offices).
The F90 provides its own air circulation and is used in any
situation that requires the removal of contamination from an
enclosed area.
The F90 is not explosion-proof. Do not use the F90 where
dangerous levels of potentially explosive gases, vapors, or
dusts are present in the cleaning area.
3
68-0103—4
F90A,B SELF-CONTAINED COMMERCIAL ELECTRONIC AIR CLEANER
The F90 is equipped with two standard light-emitting diodes
(LEDs) and one optional LED.
ON LED: Lights when the solid state power supply is
powered and operating normally.
CHECK LED: Lights if the F90 requires service or if the
test button is pressed.
WASH LED (if used): Lights when cell washing is overdue.
To understand the operating sequence of the F90, refer to
Fig. 3.
Determine Number of F90 Needed
The sizing procedure determines the number of F90s needed
for any application. The correct number required for a
particular application depends on:
— type of contamination.
—number of occupants.
—volume of the room.
— use of the room.
— outdoor air quality.
1
AIR CLEANER IS POWERED.
2
FAN DRAWS CONTAMINATED AIR INTO
THE BOTTOM OF THE F90.
3
LARGE PARTICLES ARE CAUGHT IN
THE PREFILTER.
SMALL PARTICLES PASS THROUGH
THE PREFILTER.
This sizing information in the following Examples 1, 2, and 3
was generated using the ASHRAE Handbook of
Fundamentals, 1990 and the ASHRAE Standard 62-1989,
Ventilation for Acceptable Indoor Quality. These examples
simplify the sizing procedure for most applications. Use this
information as a guide; however, keep in mind that the F90
has different capacities for each fan speed (see Specifications
section).
The number of air changes per hour determines the number
of F90s needed. More air changes per hour than indicated
are unnecessary because the ASHRAE data from which
these examples were constructed is conservative. Fewer air
changes per hour can be compensated for by bringing in
more outdoor air to maintain low contaminant levels or
tolerating a partially cleaned atmosphere. Either may be
acceptable to some users.
Regardless of the method used for calculation, the
architectural features, lighting fixtures, sprinkler system,
ducts, and grilles in the room to be cleaned may influence the
number of F90s required. For ambient air cleaning, establish
a uniform airflow pattern throughout the entire space. When
there is a lack of mounting space, fewer F90s than indicated
may be installed. More F90s may be required for oddlyshaped rooms that do not have even airflow.
If any questions should arise, consult your full-service
distributor or local Honeywell Home and Building Control
Sales Representative.
To calculate the number of F90s needed using occupant load,
refer to Example 2 (page 6).
To calculate the number of F90s needed using air changes
per hour and room volume, refer to Example 1 (page 5) or
Example 3 (page 6).
4
SMALL PARTICLES REMAINING IN THE
AIR ENTER THE IONIZER SECTION.
IN THE IONIZER SECTION, SMALL
PARTICLES RECEIVE AN INTENSE
ELECTRICAL CHARGE.
5
THE SMALL CHARGED PARTICLES
ENTER THE COLLECTING SECTION
WHERE THEY ADHERE TO THE
COLLECTOR PLATES OF OPPOSITE
CHARGE.
CARBON FILTERS (IF USED) ABSORB
ODORS AND OTHER GASEOUS
CONTAMINANTS.
6
CLEAN AIR PASSES THROUGH THE
FAN AND IS DISCHARGED IN FOUR
DIRECTIONS INTO THE ROOM,
PARALLEL TO THE CEILING TO
CREATE A COANDA AIR FLOW
PATTERN.
M1527A
Fig. 3. F90 operating sequence.
Choose Location
Mount the F90 on the ceiling near the center of the room. A
45° diagonal mounting prevents stale air build-up in corners
and may allow use of F90s at lower speeds. See Fig. 4. In
larger rooms, divide the area into sections and mount an F90
in the center of each section. In rooms requiring varying levels
of air cleaning, concentrate F90s where air cleaning is
required most. See Fig. 4.
NOTE: To assure even air distribution, the F90 draws air into
the bottom of the air cleaner and discharges air in
four directions as shown in Fig. 5. This Coanda air
flow pattern assures that the clean air is distributed
to all parts of the space. Also, if possible, mount the
F90 to aid the air circulation already established in
the room.
68-0103—4
4
F90A,B SELF-CONTAINED COMMERCIAL ELECTRONIC AIR CLEANER
F90
F90
F90
BAR
F90
T
A
B
L
E
S
M1528A
F90
F90
F90
STAGE
LOW SMOKING LEVEL AT
STAGE AND DANCE FLOOR.
USE ONE F90.
HEAVY SMOKING LEVEL AT
TABLES AND BAR.
USE THREE F90s.
F90
DANCE FLOOR
F90
F90
Fig. 4. F90 mounting considerations.
M923
Fig. 5. F90 Coanda air flow pattern.
Outdoor Air
ASHRAE Standard 62-89 specifies that every commercial
space be provided with fifteen cfm per occupant of outdoor air
to replenish oxygen and dilute CO2. If other internal sources
of gaseous contamination are present, additional outside air
is needed to dilute the contamination.
EXAMPLE: An office requires 20 cfm per person because
the standard estimates some smoking, some
copy machine operation, etc. The standard
assumes outdoor air will be cleaned to less than
75 micrograms per cubic meter prior to
introduction into the space. ASHRAE Standard
62-89 states that supplemental air cleaning to
control smoke or additional outside air must be
provided as required.
Example 1. Sizing by Air Changes per Hour and Room Volume
An office measures 40 x 45 feet (12 x 14 meters) with a 15 foot (4.5 meter) ceiling. How many F90As should be installed?
Solution:
1. Find the room volume: 40 x 45 x 15 feet = 27,000 cubic feet, (12 x 14 x 4.5 meters = 756 cubic meters).
2. Assuming seven air changes per hour, with 27,000 cubic feet (756 cubic meters) volume, the graph below indicates three
F90As are required.
3. Clean outdoor air is also required to replenish oxygen and dilute gaseous contaminants. 20 cfm per person is required for
offices.
BOWLING
CENTERS
PLACES OF
ASSEMBLY
BARS
CAFETERIAS
LUNCHEONETTES
RESTAURANTS
STORES
OFFICES
AIR
CHANGES
PER HOUR
25
20
15
10
5
0
10,000
[283]
20,000
[567]
ROOM VOLUME IN CUBIC FEET AND [CUBIC METERS]
30,000
[850]
40,000
[1133]
50,000
[1416]
60,000
[1700]
70,000
[1983]
10
9
8
7
6
5
4
3
F90As REQUIRED
2
1
M1524
5
68-0103—4
F90A,B SELF-CONTAINED COMMERCIAL ELECTRONIC AIR CLEANER
Example 2. Sizing by Occupant Load
A cocktail lounge averages 85 occupants. How many F90As should be installed?
Solution:
F90As required = ASHRAE Recommended Air Circulation/Minute
F90A Capacity
1. ASHRAE recommended minimum air circulation is 30 cubic feet per minute (cfm) (0.85 m
people, the recommended air circulation would be: 85 people x 30 cfm (0.85 m
minute).
2. F90A capacity (HI setting) is 1250 cfm (35 m
Number of F90As required =
3. Clean outdoor air is also required to replenish oxygen and dilute gaseous contaminants. 30 cfm per person is required for
bars and cocktail lounges.
A shop proprietor wants to use F90As to remove high levels of smoke from the air. The shop is 25 x 40 feet (8 x 12 meters) with
a 15 feet (4.5 meters) ceiling. How many F90As are required?
2550 cfm
1250 cfm
EXAMPLE 3. Sizing by Air Changes per Hour and Room Volume
3
/minute).
= 2 F90As
72 m3/minute
[]
3
35 m
/minute
= 2 F90As
3
/minute) per person = 2550 cfm (72 m
3
/minute) per person. For 85
3
Guideline: In the absence of other information, select the correct number of F90A units to provide between 10 and 20 air
Solution:
Number of F90As required =
1. Calculate the volume of the room: 25 x 40 x 15 feet = 15,000 cubic feet, (8 x 12 x 4.5 meters = 432 cubic meters).
2. Determine the volume of air to be circulated each hour. Ten air changes per hour are used here on the assumption that
3. Determine the volume of air to be circulated each minute:
150,000 cubic feet/hour
[]
60 minutes/hour
4. F90A capacity (HI setting is 1250 cfm (35 m
Number of F90As required =
INSTALLATION
When Installing this Product…
1. Read these instructions carefully. Failure to follow them
2. Check the ratings given in the instructions and on the
3. Assure the installer is a trained, experienced service
4. After installation is complete, check out product
changes per hour, depending on contaminant level. The F90As should be located directly above or as close as
possible to the source of contamination.
Desired Air Circulation/Minute
F90A Capacity
the intent is to reduce, but not completely eliminate, smoke. 15,000 cubic feet x 10 air changes/hour = 150,000 cubic feet/
hour (432 cubic meters x 10 air changes/hour = 4320 cubic meters/hour)
= 2500 cubic feet/minute (cfm)
3
/minute).
2500 cfm
1250 cfm
= 2 F90As
4320 cubic meters/hour
[]
60 minutes/hour
72 m3/minute
[]
3
35 m
/minute
= 2 F90As
= 72 cubic meters/minute (m3/minute)
WARNING
Explosion Hazard.
Can cause property damage, severe injury, or
death.
could damage the product or cause a hazardous
condition.
product to assure the product is suitable for your
application.
technician.
operation as provided in these instructions.
1. Do not install or use the F90 where there is any
danger of gas, vapor, or dust explosion.
2. Do not install or use the F90 if explosion-proof
fixtures are specified.
Sharp Edges.
Can cause personal injury.
Wear protective gloves while handling the cells and
prefilter to avoid cuts from the sharp metal edges,
collection plates, and ionizer wires.
68-0103—4
WARNING
Must be installed by only a Honeywell trained installer.
6
CAUTION
Do not connect the power supply until F90 is mounted.
If the F90 is powered before an electrical check, be
extremely careful to avoid electrical shock. Also, take
care when working near the F90 moving parts.
Unpacking
F90A,B SELF-CONTAINED COMMERCIAL ELECTRONIC AIR CLEANER
IMPORTANT
1. When mounting near walls, allow at least 16 in. (406
mm) for cell installation and removal and 15 in. (381
mm) for cover installation and removal. See Fig. 7.
2. Select a structurally strong part of the ceiling or wall
for mounting. Do not mount the F90 to a suspended
ceiling, to plaster, or to wallboard. If necessary,
construct strong framing to support the weight of
the F90.
1. All F90 components are packed in one box. Slide the
F90 out of the box and remove all packaging material.
• Carefully check all F90 components when
unpacking.
• Check all packaging materials before discarding to
assure no parts or papers are lost.
• Use the mounting template marked on the outside
of the box for easy installation.
2. Pull the two latches located on the front of the F90
cover. Swing the cover down and lift to disengage from
the hinges.
3. Remove the prefilter and cell from the channel guides.
4. If installing the optional WASH LED, remove the power
supply switch plate. To install the WASH LED,
see Fig. 6.
5. Remove the power box from the unit. See Electrical
Troubleshooting section for instructions.
Mounting
WARNING
Heavy Equipment.
Can cause personal injury or equipment damage.
1. If the ceiling is not reinforced properly, the weight
of the F90 could cause structural weakening and
buckling. The unit can fall, presenting a danger to
persons and equipment.
2. When using the keyhole slots for mounting,
assure the washer diameter is larger than the
keyhole diameter (3/4 in. [19 mm]) or assure the
mounting screws are secured in the small
keyhole slot.
The F90 can be mounted in any of four ways:
• Mounted into a ceiling joist using lag screws. See Fig. 8.
• Mounted into a suspended ceiling using threaded steel
rods. See Fig. 9.
• Mounted into a ceiling joist or suspended ceiling using a
transition plate accessory. See Figs. 10 and 11.
• Mounted into a wall using the wall mounting hardware
accessory. See Fig. 12.
The F90 may also be mounted with lag bolts or threaded steel
rods reaching down to the venturi plate. However, ensure the
bolts or rods are short enough to avoid interfering with the
cells. Assure 1-1/2 threads are visible beyond the nut.
For F90 installation dimensions, see Fig. 7.
Mounting the F90 Using Lag Screws
1. Locate the ceiling joists. See Fig. 8.
2. Drill four 5/16 in. (8 mm) pilot holes in the joists using
the mounting template to locate holes.
3. Lift the F90 to the mounting location.
4. Mount the F90 using four 3/8 in. x 3 in. (10 mm x
76 mm) lag screws and washers.
NOTE: Assure the washer size is larger than the 3/4 in.
(19 mm) diameter of the keyhole or assure the
mounting screws are secured in the small
keyhole slot.
7
68-0103—4
F90A,B SELF-CONTAINED COMMERCIAL ELECTRONIC AIR CLEANER
1. LOCATE WASH LED CUTOUT BEHIND
SWITCH COVER ASSEMBLY STICKER.
3. PUSH LED LENS INTO PLACE. 4.
2. USE A KNIFE TO CUT A HOLE IN
THE STICKER.
INSERT LED INTO LENS FROM BACK
OF THE SWITCH COVER ASSEMBLY.
68-0103—4
5. ATTACH NEW STICKER TO SWITCH
COVER ASSEMBLY.
Fig. 6. Installing the WASH LED.
6. REINSTALL SWITCH COVER ASSEMBLY
SCREWS.
M6832
8
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