ELECTRONIC AIR CLEANER

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP90M01364R000800010001-8
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 9
• Document Creation Date: December 27, 2016
• Document Release Date: November 23, 2012
• Sequence Number: 1
• Publication Date: October 13, 1988
• Content Type: MEMO

Declassified in Part - Sanitized Copy Approved for Release 2012/11/23 :CIA-RDP90M01364R000800010001-8
DDA SUBJECT RE Copy
13 October 1.988
MEMORANDUM FOR: Administrative Officer, DCI
VIA: Acting Deputy Director for Administration
FROM: John M. Ray
Director of Logistics
SUBJECT:
REFERENCE:
(lE;jt
25X1
Electronic Air Cleaner
Memo for P/L from AO/DCI, dated 27 Sept 88,
Subject: Smoking Area
1. The device described in the brochure attached to the
eferenced memorandum is most suitable in a small, closed
environment where air is directed through the device and
immediately recirculated into the area. The heating,_ventilating
and air conditioning (HVAC) systems in both the Original and New
Headquarters Buildings operate on the principle of removal of the
air from an area and return of the air to a central room for
conditioning (heating or cooling). We are attempting to improve
the environment in designated smoking areas by speeding up this
process (removing the volume of air more times per hour).
2. We note that the installation instructions caution not
to install the unit in a T-bar type ceiling unless special
procedures are followed. Except for restrooms, some corridors,
and special areas, the vast majority of the ceilings in the
Original and New Headquarters Buildings are of the T-bar type.
. 3. A concerted effort is being made to provide better
ventilation in the designated smoking restrooms. We are also
responding to individual requests for improved ventilation in
those specific areas which have been identified. Thank you for
your suggestion.
Attachment:
Reference
ADMIN-INTERNAL USE ONLY when separated
from CONFIDENTIAL attachment
C ONFIDENIIAL
OL 10321-88
0E:1'1 /1-1
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25X1
SUBJECT: Electronic Air Cleaner
OL/FMG
25X1 Rewritten:O-DL
(12 Oct 88)
ngk (12 Oct 88)
Distribution:
Orig - Addressee, w/att
.2-"=-DDA, w/att
1 - OL Files, w/att
1 - FMG Official, w/att
1 - FMG Chrono, w/o att
1 - HD Files, w/att
2
CONFIDENTIAL
Declassified in Part - Sanitized Copy Approved for Release 2012/11/23: CIA-RDP90M01364R000800010001-8
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UUNFIUMIAL
25X1
25X1
27 September 1983
MEMORANDUM TO: Director of Logistics
FROM: Administrative Officer/DCI
SUBJECT: Smoking Area
1. The attached brochure describes an electronic air cleaner
that I believe might be feasible for use in designated smoking areas
in Agency-controlled buildings.
2. All too often these smoking areas (usually restrooms), while
convenient for smokers, become quite offensive to non-smokers as the
room ventilation systems often leave much to be desired. A supplemental
cleaning system would help immeasurably in ridding the air of these
smoke particles and make the rooms "habitable".
3. Please take a look at the attached system and see if it could
be of any use. I would certainly like to see something like this here
at Headquarters.
C
? C/Fr1D)cL.
0 c
CONFIDENTIAL
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SPACE SAVER
MODEL 1000
MAAVAL FOR
o MSTALLATM
o OPERAT1101
O BERME
SELF-CONTAINED
ELECTRONIC AIR CLEANER
',?,:::4;441VyM111004"
AuT IQN CAREFULLY 'READS. RULES-FOR-SAFEO ERAT1ON
FI'06:TIONS:tOMPLETELY;.Z,EXEifiCISEAT 11):RECA TIONS
F,?A
!:.1 NSTA LL ER:1,7
.000i
-'01rHIS MANUAL:SHOULD REMAIN .#1.TH'::THE'.INDIVIDUAL(S).innoTwiL
ICLEANING AND:;SERVICINd THIS Pi ECEDRiEQUIFMENTX
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This manuai provides information for location, installation, operation and service. Before installation and use of the air
cleaner, carefully read these instructions to insure maximum benefits from the unit and to avoid needless service cost that
can result from improper installation.
I. INTRODUCTION
This electronic air cleaner is technic.ally known as a
two-stage electrostatic precipitator. It is designed tc remove
airborne particles ? ? dust, dirt, smoke ? ? from indoor
air.
Air movement through the unit is controlled by its
own blower system. As dirty air enters the unit it passes
through a prefilter. The prefilter removes large particles
by direct impingement.
The prefiltered air then passes through a two-stage
electrostatic precipitator. In the first stage of electrical
operation, all airborne particles, even of submicroscopic
size, are electrically charged (positive) as they pass through
the ionizer. In the second stage of operation, the charged
particles pass into an electrical field established between
a series of parallel plates. Here the postively charged parti-
cles are attracted to the plates, forming the negative element
of the field.
SPECI FICATIONS
Model
CAC- 1000 I
Rated
Capacity
600- 1000 ft.3/min.
(1020- 1700 m3/hr.)
Cell Weight
17 lbs. (7.7 kg)
Unit Weight
75 lbs. (34.0 kg)
Power
Consumption
275 watts maximum
Electrical
Input
120 Volts, 60 Hertz
1 Phase
Electrical
Output
.9 ma @ 6200 VDC (Nominal)
1
II. OPERATION
CONTROL SWITCH (A)
The 3 position control switch located on the side of the
unit controls the operation of the power pack and the speed
of the fan. (Lo- 600 CFM: Med. - 800 CFM; Hi - 1000 CFM
Nominal).
ON/OFF LIGHT (B)
The on/off light monitors the electrical operation of
your electronic air cleaner. When the control switch (A)
is in the Hi, Med. or Lo position, power is being delivered
to the power pack and the indicating light will glow. If the
on/off light does not glow, the air cleaner is in need of
attention. (Refer to service check list, Page 8.)
CELL ACCESS LATCHES (C)
The cell access latches located on the side of the unit
hold the access door closed and are designed to auto-
matically disconnect electrical power from the power supply
when the access door is opened.
OFF HI MED LO
CELL ACCESS
LATCHES
(C)
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\.
FLUSH MOUNT INSTALLATION
1. Carefully unpack the unit and check for damage
incurred in shipment. Report any damage to the
freight carrier immediately.
2. Open cell access door and remove the pre-filter and
cell.
3. Select a location near the center of the area to be
cleaned and locate the ceiling joists in that area.
4. Locate four mounting points (each being at a joist)
and pre-drill holes into the joist and unit housing
as shown in Sketch D.
5. Lift unit to ceiling and secure using four Y," X 71/2"
lag bolts as shown in Sketch D.
6. Connect electrical power to unit. See Field Wiring
Diagram.
7. If a carton filter is used, remove filter from plastic
bag and install in guide rails on back of cell.
8. Re-install cell, pre-filter and carbon filter.
9. Close access door and unit is ready for operation.
IV. ELECTRICAL WIRING
Electrical access panel is located on the back of the
3
air cleaner cabinet assembly. Knockouts are provided in
the top and side of the housing assembly. Wire the unit
to a 120 volt, 60 HZ, 1 phase.
Field wiring requires
to corresponding house
ground (green) wire to
cleaner.
connecting black and white leads
current input. Connect incoming
the ground screw located in air
GROUND
SCREW
# 16 AWG
MINIMUM
120 VAC
SOURCE
T
SPACE SAVER
AIR CLEANER
FIELD WIRING
V. SYSTEM CHECKOUT
After assemblying and installing the unit, switch the
control switch on.
A. The on/off light should now be on. The light
shows unit has line voltage.
B. Open cell access door. The on/off light should
go out. The blower should also stop.
ARCING (SNAPPING OR CRACKING NOISE)
An occasional arcing noise may be emitted from the air
cleaner. This is normal and is caused by an exceptionally
large piece of dirt entering the collecting cell. An arcing
noise may also be noted after cell washing. If this occurs
and is constant, allow more time for the cell to dry. (Refer
to service check list, Page 8.)
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System Check
A simple system check can be made by drawing an arc
as follows:
a. Remove pre-filter and cell.
b. Remove pre-filter from cell.
c. Re-install cell wit4out pre-filter.
d. Use screw driver to energize safety switch.
If high volt meter not available, proceed as follows:
e. Use an insulated screw driver to draw an arc between
extended ground plate and ionizing wire. A sharp
electrical arc of approximately 1/4" should be ob-
served. This indicates proper cell operation. If weak
arc or no arc is observed, follow cell and power supply
checkout.
f. If using high volt meter, voltage should read between
5.9 ? 6.5 kilovolts. If voltage is below 6 kilovolts or
no output at all, the problem lies in either the cells
or power supply. See Service, Page 8.
2. Power Supply (without high volt meter)
If there is primary power to the power supply and
the secondary output voltage is absent or very low, the
power supply is defective. A simple check can be made
by drawing an arc, with an insulated handle screwdriver
between common ground and the high voltage output
.terminal (c). A good power supply will produce a pro-
nounced arc where a defective one will produce no arc
at all or a very weak one.
(Refer to Figure 1, Power Supply Test Points).
3. Power Supply Check (with DC high volt meter)
Take reading with the high voltage meter at cell
contact point. Should range 7 KV or higher (without
cell connected).
If voltage is above 7 KV, the problem is in the cell
(see cell checkout procedure).
If voltage is below 7 KV (without cell connected),
the problem is in the power supply.
Proceed as follows:
a. Remove power pack from the unit.
b. Check for loose wires; if loose wire found, reconnect.
c. If defective power supply is indicated, replace.
5
3
LOW 91 RED
0
HI ? MED. ? LOW 122 \ 14
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B. Other Troubles ? Their Symptoms and Corrections
1. Arcing Noise
When an arcing noise is noted, it is usually located
in the DC high voltage circuit. The ionizing-collecting
cell is part of this circuit and normally the trouble will
be found to be in the cell. The noise is caused by high
voltage arcing to ground.
An occasional arcing noise is normal and inherent
in all precipitators. These occasional arcs are caused by
large particles of dirt in the air such as a cigarette ash,
insect, etc. Constant or repeated intermittent arcing should
be checked.
Check For:
a. Loose ionizing wire(s) ? repair or replace
? b. Excessively dirty cell components ? clean
c. Damaged (bent) plates of ionizer ? straighten or
replace
d. Defective or loose high voltage lead or contact
assembly ? repair, replace
e. Cracked insulator ? replace
f. Improper ground ? check ground and correct if
necessary.
2. Hissing Noise
A hissing noise (or frying sound) usually stems from
a loose high voltage connection or from an improper
ground. The reduction in the designed spacing usually
is caused by bends or deformities in the cell from mis-
handling.
Check For:
a. Damaged (bent) plates or ionizer ? straighten or
replace.
b. Loose ionizing wires ? repair or replace.
c. Dirty cell or large piece of foreign material between
plates ? clean.
d. Defective high voltage contact assembly ? repair or
replace.
e. Poor connection between cell and contact assembly ?
repair.
f. Loose high voltage wiring ? repair.
g.
Improper ground ? check ground and correct if
necessary.
3. Humming Noise
The ionizing wires have a normal tendency to vibrate
7
when charged. On some occasions when atmospheric
conditions are just right and the humidity is exceptionally
low, the vibration is aggravated to the point where an
audible hum can be noted. It is usually noted more in
the northern sections of the country during the winter
months. This condition can be further aggravated if the
ionizing-collecting cell is very dirty. The condition is
self-correcting when the relative humidity is increased
or can be alleviated by washing the cell.
4. Radio and/or Television Interference
This trouble is not common but when occuring is
usually due to either a continuous high voltage "leak
or discharge", or from the absence of a good common
electrical ground. Refer to checks listed under 1. Arcing
Noise and 2. Hissing Noise.
5. Ozone
Under normal operating conditions all electrostatic
air cleaners produce minute quantities of ozone as an
incidental by-product, as do televisions and other electrical
appliances. The design of the unit has been tested and is
far below the published permissible limits. The level of
detection (when it is noticed) varies from individual to
individual, some being more susceptible than others.
Usually a new unit will produce more ozone than one
that has been in operation for several weeks. This is due to
the normal amount of sharp corners or manufacturing
burrs on the ionizing-collecting cell. The voltage working
on these areas however, tends to round them off, thereby
they are self-correcting.
An ionizing-collecting cell that has been damaged, where
the designed spacing between electrically charged and
ground components has been decreased, may also produce
an abnormal amount of ozone.
Check For:
a. Damaged (bent) plates ? straighten or replace
b. Loose ionizing wires ? repair or replace
c. Dirty cell ? clean
d. Loose high voltage connections ? repair or replace
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X. PARTS LIST
Key No.
Part Number
Description
Qty.
1
434161-001
Cabinet Top
1
2
432153-001
Ionizer-Collector
1
3
121110-002
Light
1
4
228276-001
Rotary Switch
1
5
122861-001
Knob
1
6
134205-001
Latch
2
7
134206-001
Latch Actuator
2
8
332343-001
Grill
2
9
332343-002
Grill
2
10
232167-001
Pre-Filter
1
Key No.
Part Number
Description
Qty.
11
220978-006
Contact Board
1
12
231844-001
Motor
1
13
132864-001
Propeller
1
14
331845-102
Power Supply
1
15
132315-001
Gasket
6 ft.
16
134244-001
Cover Plate
1
17
220400-002
Terminal Block
1
222961-001
Insulator
12
220111-020
Ionizing Wire
17
132309-001
Charcoal Filter
1
9
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