ACO NS3/450 Owner's manual

ACO Environment
Installation
Operation
Maintenance
Oleopator P Oil-Water Separator

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OLEOPATOR P OPERATION MANUAL
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Contents
Oleopator P Series 1
System Components 2
1. Safety Considerations 3
1.1 Designated Use 3
1.2 Qualications of Personnel 4
1.3 Personal Safety Equipment 4
1.4 Responsibility of Owner 4
2. Installation 5
2.1 Onsite Handling 5
2.2 Ground Conditions 6
2.3 Separator Positioning 6
2.4 Installation 9
3. Initial Set-Up 11
3.1 Prior to Filling the System 11
3.2 Filling Separator System 12
4. Operation 13
4.1 Entering the Separator 13
4.2 Oil/Sludge Level Sensors 13
5. Maintenance 14
5.1 Maintenance Schedule 14
5.2 Cleaning Coalescence Units 15
5.3 Oil/Sludge Disposal 16
5.4 General Inspection 16
6. Alarms Assembly & Initialization 17
6.1 Sensor Support Position 17
6.2 Sensor Setting 18
6.3 Simple Commissioning 19
6.4 Advanced Commissioning 20
7. askACO 21
Oleopator P Series
ACO Oleopator P is a range of oil
separators that allow sediments and
oils to be separated out simultaneously
in one tank. Separator systems are
available with a range of dierent sludge
and oil capacities to suit specic site
requirements.
Alarm sensor systems are available to
notify personnel when maintenance is
required. Oil level sensors are required
for compliance with UL 2215.
Class I Light Oil Separators
An included coalescence unit traps oil
drops that are too small to oat to the
surface naturally and coalesces them to
form larger oil drops capable of being
separated out. These separators are
certied capable to EN 858 and capable
of achieving euent quality of 5 ppm.
Bypass Separators
A bypass version is available for when full
treatment of large ows is not required.
The unit will fully treat ows until it
reaches maximum inow volume (GPM),
at which point additional inow bypasses
the separator and diverts directly to the
outlet pipe. Typically most pollutants
are washed into the separator during
the initial ow so euent quality is not
drastically aected.
Product Information
Detailed product information is available
in associated spec info sheets, the EN100
ACO Environment Catalog, or
www.acoenvironment.us.

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OLEOPATOR P OPERATION MANUAL
ACO ENVIRONMENT
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System Components
1. Cover
2. Load Distribution Plate*
3. Extension Shaft
4. Identication Plate
5. Coalescence Unit
6. Float
7. Bypass Inlet**
8. Inlet Connection
9. Inlet Pipe
10. Bae Plate
11. Tank
12. Outlet Pipe
13. Sampler Connection
14. Outlet Connection
15. Bypass Outlet**
* Load Class D only. Cast in place by others.
** Optional; sold as separate item.
2
3
3
715
1
1
4
9
11
10 12
6
14
5
13
8
Heavy Duty
Light Duty

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The safety guidelines in this chapter are to be read before using the separator. Serious
injuries or death could occur as a result of misuse.
1.1 DESIGNATED USE
Areas of Application
Oleopator separators are designed
to remove mineral light liquids from
wastewater.
Applications where mineral oils or mineral
light liquids are able to enter the sewer
system should have separator systems
connected downstream from drainage
collection points. Such applications
include gas stations, parking lots,
roadways, car washes, engine washes,
garages, vehicle recycling, scrap yards,
fueling stations, tank pits and transformer
stations.
Stormwater from areas where no light
liquids accumulate—such as roofs and
courtyards—should not be fed into the
separator.
Separators should be installed such that
no light liquids can escape in the event
of backow from the sewer or automatic
closure of the oat. An automatic alarm
may be required. Regulations may vary
by state.
No soaps are allowed in water entering
the separator, with the exception of
specially-formulated soaps with short
emulsication periods. No centrifugal
pumps that lead to emulsication of oils
are allowed prior to the separator.
Limitations
The separators are not to be installed for
residential wastewater.
When delivering wastewater into
the public sewer system, the local
hydrocarbon limits should be observed.
Further treatment may be required.
Foreseeable Misuse
No substances that pollute the water or
limit the functionality of the separator
should be introduced into the separator,
including but not limited to the
following:
wastewater containing feces
wastewater containing animal or
vegetable greases
wastewater in which a considerable
amount of stable emulsions is present
1Safety Considerations

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1.2 QUALIFICATIONS OF PERSONNEL
All work performed on the separator
equipment is to be carried out by trained
personnel.
1.3 PERSONAL SAFETY EQUIPMENT
Personal safety equipment is necessary
for a variety of works on the separator.
1.4 RESPONSIBILITY OF OWNER
The owner is responsible for complying
with the following points:
Only operate the separator according
to regulations and in proper
conditions.
Ensure that protection devices are
functional.
Adhere to a scheduled maintenance
program and immediately repair
faults. Only repair faults yourself if
the measures are described in these
operating instructions. Contact ACO
for all other measures.
Inspect data plate on the separator for
completeness and legibility.
Adequate personal safety equipment
must be available and used.
Provide complete and legible
operating instructions at the
separator’s site of installation and
training based on this.
Only employ qualied and authorized
personnel.
HEALTH & SAFETY
Safety instructions are intended to
prevent injury to personnel or damage to
equipment and must be read before any
maintenance is performed.
The separated oils and any vapors are
ammable and/or combustible. Care
must be taken whenever the system is
opened.
All safety instruction labels must be
replaced if they become detached or
illegible.
Gas concentrations MUST be tested
before entering the separator;
breathing apparatus is recommended
for all personnel entering separator.
Safety lines, harnesses and radios/
whistles are advised if entering
separator.
Smoking and naked lights are
strictly forbidden anywhere in area
surrounding the system.
Installed devices (e.g. baes, inlet and
outlet parts, coalescence unit, etc.)
are intended for operation of separator
system and are not load bearing.
They must not be used as steps,
footholds or resting places for cleaning
equipment etc.
The separator system is dened as a
Zone 0 Explosion Hazard Area. Only
authorized, properly trained personnel
are permitted to perform work on the
electrical components of the separator
(where used).
Contact with wastewater
containing light liquids—e.g. during
maintenance—can lead to dry, irritated
skin, skin infections, headaches,
dizziness, nausea, vision problems,
loss of consciousness, and—in serious
cases—death. Ensure proper protective
clothing is used and immediately wash
any exposed skin.

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2
Oleopator P separators are intended
for in-ground installation. Care must be
taken to determine correct installation to
take into account site loadings and trac
patterns. Details are provided for both
light duty and heavy duty applications.
Inspect Oleopator P upon delivery and
before installation to check for damage
that may have occurred during shipping
or at the job site prior to installation.
Light oil separators can be extremely
large (depending upon ow and holding
capacity). Ensure correct equipment is
available for proper unloading, moving
around site and lowering into required
nal position.
Remove oats and lters during
installation and protect separator
openings from site run-o as stones and
debris may cause surface damage inside
the separator.
Installation
2.1 ONSITE HANDLING
Personnel
Carry separator with two people using
the circular ring as a grip and pipe
connections for additional stability.
Not suitable for single person lift.
Crane
Sling attachment points are provided
for proper handling of the tank. Do not
transport the separator with extension
shaft sections and/or covers assembled.

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2.2 GROUND CONDITIONS
Where groundwater is present, certain
additional measures may need to be
taken to prevent lifting.
Light Duty Applications - if
groundwater level is less than 19.7" (500
mm) below grade no additional measures
are required. Where groundwater level
is higher than 19.7" (500 mm) below
grade, an on-site 63" (1600 mm) dia x 6"
(152 mm) thick concrete ring is cast
in-situ over the large, lower tank ridge
(see diagram below) to avoid oating.
Heavy Duty Applications - no
additional measures are required.
1
2
2.3 SEPARATOR POSITIONING
The purpose of a separator is to collect
light oils for proper disposal. Timely
emptying and maintenance is critical
for eective operation. Alarm systems
can help ensure light oils and sludge
are removed in a timely fashion and can
alert appropriate personnel to potential
maintenance issues.
Alarm failure (or Failure to Action alarm
alerts) and backow from sewers are
potential causes of operation error and
pollution. These can be overcome in
certain applications by adjusting the
height of the separator relative to the
collection vessel/drain. Super-elevated
positioning is where the cover of the
separator is higher by a minimum height
(V) than the collection point and inlet.
V
max 19.7"
(500 mm)
max 6.0"
(152 mm)
min Ø 63" (1600 mm)
1
2
V - Super-elevated Positioning
Size Pedestrian
in (mm)
Heavy Duty
in (mm)
Cover Only Cover & Shaft Cover & Shaft
OLEOPATOR P MODEL
NS3/450 1.78 (45) 2.75 (70) 5.90 (150)
NS3/670 1.78 (45) 2.75 (70) 5.90 (150)
N 3/950 1.78 (45) 2.75 (70) 5.90 (150)
NS6/660 1.57 (40) 2.56 (65) 5.71 (145)
NS6/1210 1.57 (40) 2.56 (65) 5.71 (145)
NS10/1080 1.97 (50) 2.95 (75) 6.10 (155)
see table below
for value of V

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INSTALLATION SITUATION
Super-Elevated
Positioning No No
Alarm System No Yes
OPERATING SITUATIONS
Ready for use
Normal operation Normal operation
Max Oil =
Float Closure =
Blockage
Oil will leak from cover Alarm will signal and
oil will leak from cover
Backow from sewer
Oil will leak from cover
unless a backow
prevention pump is
used downstream from
separator
Alarm will signal and oil
will leak from cover unless
a backow prevention
pump is used downstream
from separator
2.3 SEPARATOR POSITIONING (cont.)

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INSTALLATION SITUATION
Super-Elevated
Positioning Yes Yes
Alarm System No Yes
OPERATING SITUATIONS
Ready for use
Normal operation Normal operation
Max Oil =
Float Closure =
Blockage
Oil will stay in separator,
wastewater will ood from
collection xture
Alarm will signal and oil
will stay in separator,
wastewater will ood from
collection xture
Backow from sewer
Oil will stay in separator,
wastewater will ood from
collection xture
Alarm will signal and oil
will stay in separator,
wastewater will ood from
collection xture

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2.4 INSTALLATION
Light Duty Installations
1. Excavate area 60" (1524 mm) wider
and 12" (305 mm) deeper than the
separator; this allows for a 12" (305
mm) aggregate base compacted to
Proctor density 97%.
2. Check level of unit and inverts of
inlet/outlet pipes.
3. Backll in 12" (305 mm) layers around
unit to the level of inlet/outlet pipes
(backll should be 2-16 mm sand/
gravel) and compact to Proctor
density 97%; take care to not damage
separator when compacting ll.
4. Connect inlet/outlet pipes - pipes
should be resistant to hydrocarbons.
Flexible couplings will be required
as inlet/outlet pipes are metric
dimensions.
5. Inlet pipes should be installed with
as few bends and slopes as possible
to prevent blockages and reduce
turbulence of incoming wastewater.
6. Install extension shaft (if used) - cut to
required height, place provided seal
in lowest notch of remaining section.
Grease seal and tank collar with acid-
free grease to ensure watertight seal.
7. Install wiring conduit for alarm system
(if used).
8. Recheck levels.
9. Continue to backll and compact.
10. Place cover with 4" (102 mm) deep
concrete collar onto shaft/tank
assembly.
11. Install alarm sensors (if used).
Heavy Duty Installations
1. Excavate area 60" (1524 mm) wider
and 12" (305 mm) deeper than the
separator; this allows for a 12" (305
mm) aggregate base compacted to
Proctor density 97%.
2. Check level of unit and inverts of
inlet/outlet pipes.
3. Backll in 12" (305 mm) layers around
unit to the level of inlet/outlet pipes
(backll should be 2-16 mm sand/
gravel) and compact to Proctor
density 97%; take care to not damage
separator when compacting ll.
4. Connect inlet/outlet pipes - pipes
should be resistant to hydrocarbons.
Flexible couplings will be required
as inlet/outlet pipes are metric
dimensions.
5. Inlet pipes should be installed with
as few bends and slopes as possible
to prevent blockages and reduce
turbulence of incoming wastewater.
6. Install extension shaft - cut to
required height, place provided seal
in lowest notch of remaining section.
Grease seal and tank collar with acid-
free grease to ensure watertight seal.
7. Install wiring conduit for alarm system
(if used).
8. Continue backlling up to 8" (203
mm) below top of access shaft.
9. Install reinforcement, form and pour
concrete load distribution plate
8" (203 mm) thick and extending
13.75" (350 mm) around shaft in all
directions (see next page for details).
10. Install cover, frame and concrete
adaptor plate to ensure it is held
securely in place.
11. Install alarm sensors (if used).