QED ADDP User manual

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Surface Mounted Automatic
Double diaphragm Pump
ADDP
Document No. 600005-06
PO Box 3726
6095 Jackson Road
Ann Arbor, Michigan 48106-3726
[phone] — North America Only
[phone] — Tele.
[phone] — Fax
[e-mail] — E-mail
www.qedenv.com
Copyright QED Environmental Systems, November 2008
Environmental Systems
1565 Alvarado Street
San Leandro, California 94577-2640
[phone] — North America Only
[phone] — Tele.
[phone] — Fax

The equipment in this manual is protected under U.S. and foreign patents issued and pending:
U.S. Patents:
Selective Oil Skimmer (SOS) 4,497,370
Specic Gravity Skimmer (SPG) 4,663,037
AutoPump (AP) 5,004,405
Specic Gravity Skimmer (SPG) Product Sensing 5,474,685
Vacuum/Pressure Hydrocarbon Recovery System 4,761,225
SPG PSR technology 5,474,685
AP-2 5,641,272
Genie System 5,704,772
Canada Patent:
Specic Gravity Skimmer (SPG) 1,239,868
"AP" is a Registered Trademark of "QED Environmental Systems"
"AutoPump" is a Registered Trademark of "QED Environmental Systems"
"SOS" is a Registered Trademark of "QED Environmental Systems"
"Genie" is a Registered Trademark of "QED Environmental Systems"
"SPG" is a Registered Trademark of "QED Environmental Systems"
"AutoSkimmer" is a Registered Trademark of "QED Environmental Systems"
The QED Environmental Systems logo is a Registered Trademark of "QED Environmental
Systems"
QED Environmental Systems is a Registered Trademark of "QED Environmental Systems"

Page i
Table of Contents
Revision 6 - November, 2008
Introduction..................................................................................................................... 1
Chapter 1: Equipment................................................................................................ 2
FIGURE 1: ADDP System ..................................................................... 4
FIGURE 2: ADDP System with Foot Valve..................... .................... 6
FIGURE 3: ADDP System with Top Loading Cup ........................... 7
Chapter 2: Operation................................................................................................. 9
Chapter 3: Assembly...................................................................................................10
FIGURE 4: Locking Quick Connect Instructions................................ 11
Chapter 4: Installation................................................................................................13
Chapter 5: Start-Up..................................................................................................... 16
Chapter 6: Maintenance........................................................................................... 17
Chapter 7: Troubleshooting..................................................................................... 21
Index................................................................................................................................... 23
Appendix: Equipment List........................................................................................ 24
Table of Contents

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ADDP Manual
Page 1
INTRODUCTION
The Automatic Double Diaphragm Pump (ADDP) system is designed to
automatically maintain a uid level in a well or tank by sensing the uid level and
removing uid which rises above the sensor. The ADDP system is powered by
compressed air and requires no electricity. It is capable of ows from 0 to 15 gallons
per minute (GPM), liing from 22 feet or less below ground at sea level, and pushing
with a force of 100 psi (231 feet of water column).

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ADDP Manual
Chapter 1: Equipment
EQUIPMENT
The system is comprised of four basic components:
1) Double Diaphragm Pump
2) Two stage air lter/regulator
3) Well level control valve
4) Hoses and ings
1) DOUBLE DIAPHRAGM PUMP (DDP)
• DDP - The Double Diaphragm Pump (DDP) can only be used
above ground and pulls uid from 22 feet or less below ground at
sea level.
• Needle valve - The DDP has an adjustable needle valve to
control its rate of cycling and quick connect ings for both
power air and uid in and out. (See Figure 1)
2) TWO STAGE FILTER/REGULATOR
5 and 0.01 micron air lters - Two lters mounted on the aluminum plate
remove particulates, oil vapor and water droplets from compressed air. The
pump draws air from the 5 micron lter. The level sensor draws air from
the 0.01 micron air lter.

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ADDP Manual
Page 3
• The rst air lter/regulator (5 micron particulate lter) has a gauge and
quick connect ings for the compressed air coming from the compressor.
This lter has an automatic drain valve which activates when the uid level
rises in the lter bowl. (See Figure 1)
• The second air lter for the bubbler sensor system (0.01 micron oil
coalescing lter) has a needle valve to control the air bubbler rate. This lter
also has an automatic drain valve which activates when the uid level rises
in the lter bowl. (See Figure 1)
Chapter 1: Equipment

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ADDP Manual
Figure 1 - ADDP System

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ADDP Manual
Page 5
3) WELL LEVEL CONTROL VALVE
• The well level control valve is mounted on top of the two stage lter/regulator
assembly. It uses a well level sensor hose down well to sense the uid level
in the well. It supplies air to the DDP when the uid level rises and shuts the
DDP o when the uid level recedes. (See Figure 1)
System with Foot Valve:
• The pneumatic sensor circuit has an air bubbler connected to the 1/4 inch
well level sensor hose via a quick connect. (See Figure 2)
System with Top Loading Cup:
• The pneumatic sensor circuit has an air bubbler located inside the top
loading cup. (See Figure 3)
Chapter 1: Equipment

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ADDP Manual
Figure 2 - ADDP System with Foot Valve

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ADDP Manual
Page 7
Figure 3 - ADDP System with Top Loading Cup
Chapter 1: Equipment

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ADDP Manual
4) HOSES and FITTINGS
Four types of hoses are supplied with the ADDP system including: system air
supply hose, well level sensor hose, uid intake hose and uid discharge
hose.
• The system air supply hose is a blue 3/8 inch I.D. hose with brass
MALE and FEMALE quick connects. The system air supply hose runs
from air compressor to the pneumatic system.
• An air hose socket with 1/4 inch MPT allows the system
air supply hose to connect from the compressor to the air
lter/regulator.
• The well level sensor hose is a yellow 1/4 inch I.D. hose with 1/8 inch
I.D. straight-through brass quick connect ings. The hose is connected
to the small quick connect on the top of the pneumatic system. The
other end of this hose is positioned in the well or tank from which
the uid is being drawn.
• There are two uid hoses, one for intake (ribbed), and one for discharge
(smooth).
• The uid intake hose is 1 inch I.D. or larger. With quick connect
ings, this hose is connected to the DDP and runs into the well or
tank from which the uid is being drawn.
• The fluid discharge hose is 3/4 inch I.D. or larger. With quick
connect ings, this hose is connected to the DDP and runs to the
discharge point.
• The foot valve placed on the end of the uid intake hose
keeps the DDP from losing prime by preventing fluid from
leaving the hose. (See Figure 2)
• The top loading cup placed on the end of the uid intake
hose draws in hydrocarbon products. The well level sensor
hose is aached to the quick connect on the top loading cup.
(See Figure 3)

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ADDP Manual
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Chapter 2: Operation
OPERATION
SAFETY FEATURES
The ADDP system minimizes the potential for accident with the following
safeguards:
• All components are air-driven.
• All air hoses have automatic shut o quick connects which prevents
injury due to accidental high pressure discharge.
• All quick connects are brass to eliminate sparking hazard.
• Air lter bowls are made of zinc. This provides greater chemical
resistance, and unlike plastic bowls zinc is less prone to damage if
dropped.

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ADDP Manual
Chapter 3: Assembly
ASSEMBLY
NOTE: When operating and maintaining the system, disconnect air and
uid lines cautiously to avoid spilling uids.
• Wear safety goggles to protect eyes from any splashing or pressure
release.
• Wear chemically resistant rubber gloves when pulling the hoses from
the well to avoid skin contact with the product being recovered.
• The hose which carries the air from the pneumatic circuit to drive the
DDP is already connected
• Position the system on a level surface. The uid level should not be more
than 22 feet below the DDP.
STEP 1 - LOCKING QUICK CONNECT INSTRUCTIONS
• Follow the instructions on Figure 4 for properly securing the locking
quick connects.
STEP 2 - AIR COMPRESSOR to PNEUMATIC SYSTEM - System Air Supply
Hose
• Connect the FEMALE air hose socket with 3/8 inch MPT to the
air compressor making sure to use the teflon tape on the threads.
(See Figure 2)
• Connect the MALE quick connect on the system air supply hose to the
FEMALE socket on the air compressor. (See Figure 2)
• Aach the FEMALE quick connect on the system air supply hose to
the MALE air supply quick connect near the air lter on the pneumatic
system. (See Figure 2)

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Figure 4 - Locking Quick-Connect Instructions
Chapter 3: Assembly

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ADDP Manual
STEP 3 - PNEUMATIC SYSTEM to DOWN WELL - Well Level Sensor
Hose
System with Foot Valve:
• Connect the MALE quick connect on the well level sensor hose to the
FEMALE quick connect on the top of the pneumatic system. (See Figure 2)
• The FEMALE end of this hose is positioned in the well or tank from
which the uid is being drawn. This hose end is usually secured about
six (6) inches below the desired uid level. (See Figure 2)
System with Top Loading Cup:
• Connect the MALE quick connect on the well level sensor hose to the FEMALE
quick connect on the top of the pneumatic system. (See Figure 3)
• Connect the FEMALE quick connect on the well level sensor hose to the
MALE quick connect on the top loading cup. (See Figure 3)
STEP 4 - DDP to WELL and DISCHARGE POINT - Fluid Hoses
System with Foot Valve:
• Connect FEMALE quick connect of the uid intake hose to the MALE DDP
quick connect. The MALE end of the intake hose with foot valve is positioned
in the well or tank below the desired uid level. (See Figure 2)
• Connect the MALE quick connect of the uid discharge hose to the FEMALE
DDP quick connect. The FEMALE end of the discharge hose leads to a uid
discharge point. (See Figure 2)
System with Top Loading Cup:
• Connect FEMALE quick connect of the uid intake hose to the MALE
DDP quick connect. The MALE end of the intake hose with top loading
cup is positioned in the well or tank at uid level. (See Figure 3)
• Connect the MALE quick connect of the uid discharge hose to the FEMALE
DDP quick connect. The FEMALE end of the discharge hose leads to a uid
discharge point. (See Figure 3).

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Chapter 4: Installation
INSTALLATION
This chapter describes the installation of the air compressor.
AIR COMPRESSOR INSTALLATION:
QED Environmental Systems usually does not supply the air compressor. It is best
to buy the compressor from a local supplier who provides service.
NOTE: An automatic drain on the compressor receiver tank significantly
reduces the load on the air lters, extends the life of the lter elements and
reduces system maintenance.
The air compressor provides the air necessary to drive the system. The
compressed air passes through a two stage filter/regulator and then into
the pneumatic system where it powers the DDP and controls operation of
the system.
NOTE: The information on compressors is for reciprocating piston compressors.
A centrifugal compressor produces about twice the air of a piston compressor
for the same horsepower.
To select a compressor, follow this formula: a reciprocating piston compressor
should not run more than 50% of the time. For every 1.5 Gallons Per Minute
(GPM) of water, the compressor should have 1 HP. For every 100 Gallons Per
Day (GPD) of fuel, the compressor should have 1 HP. At a minimum, the
air compressor should be in the 1 to 1-1/2 horsepower (HP) range with a 20
gallon holding tank. A 1 HP air compressor allows the system to remove
100 GPD of uids. 1 HP provides approximately 3.5 cubic feet per minute
(scfm) of free air.

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ADDP Manual
The 2 and 3 HP compressors should have 60 to 80 gallon tanks. A 5 HP
compressor should have an 80 gallon tank and the 7-1/2 HP and 10 HP
compressors should have a 120 gallon tank. Storage tanks and automatic
pressure shut o switches provide a buer so the compressor motor can cool
between each time the tank is pressurized.
Electrical wiring for the Compressor
All electrical connections should be made by a licensed electrician and
in accordance with the electrical code for particular areas. The wiring
should provide full motor nameplate voltage and current at the motor
terminals during starting.
Wiring hook-up must be made so that the compressor ywheel turns
in the proper direction. There is usually an arrow on the ywheel to
indicate the proper rotation direction.
Motor overload protection
To prevent motor damage, provide all compressor motors with overload
protection. Some motors are furnished with built-in thermal overload
protection.
To prevent motor damage due to low voltage or undue load imposed
on the motor, larger motors should be used in conjunction with starters
that include thermal overload units.
To determine the proper thermal protection (thermal element), consider
the load to be carried, starting current, running current and ambient
temperature. Recheck electric current characteristics against nameplate
characteristics before connecting wiring.
NOTE: Fuses are for circuit protection only, and are not to be considered
motor protection devices. Consult your local power company regarding
proper fuse size.
In compressors requiring lubricating oil, do not use synthetic oil.
Synthetic oil adversely aects the DDP. Non-detergent 30 Weight oil is
recommended for compressor lubrication.
An automatic drain should be installed on the compressor holding tank to
periodically drain the water and oil which collects in the tank.

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Do not lubricate the compressed air coming out of the compressor. The
air lters are designed to remove oil from the compressed air. If there
is too much oil in the compressed air, it will reach the control and
possibly cause a shut-down.
The compressor should provide between 70 and 200 pounds per square
inch (psi) of air pressure to the system. The lter and regulator will
accept a maximum of 200 psi air pressure. Maximum air pressure
seing on the regulator is 120 psi.
Chapter 4: Installation

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ADDP Manual
Chapter 5: Start Up
START-UP
Once the hoses are connected and the system is receiving compressed air
(between 40 and 100 psi), uid can be pumped. The rate of the pumping (cycle
rate of the DDP) can be adjusted by opening or closing the needle valve in
the air hose going from the pneumatic circuit to the DDP. If the ow rate is
low, the DDP cycling rate should be fairly low. This prevents the DDP from
running fast and drawing the uid down too far allowing air to enter into the
intake hose. This could cause a loss of suction temporarily until the DDP pulls
the uid up the hose again. (See Figure 1)
The system will turn itself on and o automatically based upon the uid level
change in the well or tank.

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Chapter 4: Assembly and Installation
Chapter 6: Maintenace
MAINTENANCE
The air lters should be changed periodically depending upon the cleanliness of the
air coming from the compressor. Both air lters have an automatic drain valve that
drains the lter bowl of water. The valves function satisfactorily as long as the air is
not very oily. Both bowls should be checked for a buildup of emulsied (white solid)
oil and water. This build-up will clog the valve.
If the valves become clogged, oil and water can be sent into the pneumatic circuitry.
This will not harm the DDP if it is detected within a few days. The passage of oil and
water into the DDP's air side will show up in the air exhaust muer. Oil and water
droplets and perhaps a pool of liquid under the DDP will appear.