Veeder-Root TLS-350 Series User manual

Manual No: 577013-836 ●Revision: N
Installation Guide
Vacuum Sensors

ii
Notice
Veeder-Root makes no warranty of any kind with regard to this publication, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose.
Veeder-Root shall not be liable for errors contained herein or for incidental or consequential damages in connection
with the furnishing, performance, or use of this publication.
Veeder-Root reserves the right to change system options or features, or the information contained in this publication.
This publication contains proprietary information which is protected by copyright. All rights reserved. No part of this publication may be
photocopied, reproduced, or translated to another language without the prior written consent of Veeder-Root.
Contact TLS Systems Technical Support for additional troubleshooting information at 800-323-1799.
DAMAGE CLAIMS / LOST EQUIPMENT
Thoroughly examine all components and units as soon as they are received. If any cartons are damaged or missing, write a complete
and detailed description of the damage or shortage on the face of the freight bill. The carrier's agent must verify the inspection and sign
the description. Refuse only the damaged product, not the entire shipment.
Veeder-Root must be notified of any damages and/or shortages within 30 days of receipt of the shipment, as stated in our Terms and
Conditions.
VEEDER-ROOT’S PREFERRED CARRIER
1. Contact Veeder-Root Customer Service at 800-873-3313 with the specific part numbers and quantities that were missing or
received damaged.
2. Fax signed Bill of Lading (BOL) to Veeder-Root Customer Service at 800-234-5350.
3. Veeder-Root will file the claim with the carrier and replace the damaged/missing product at no charge to the customer. Customer
Service will work with production facility to have the replacement product shipped as soon as possible.
CUSTOMER’S PREFERRED CARRIER
1. It is the customer’s responsibility to file a claim with their carrier.
2. Customer may submit a replacement purchase order. Customer is responsible for all charges and freight associated with
replacement order. Customer Service will work with production facility to have the replacement product shipped as soon as
possible.
3. If “lost” equipment is delivered at a later date and is not needed, Veeder-Root will allow a Return to Stock without a restocking fee.
4. Veeder-Root will NOT be responsible for any compensation when a customer chooses their own carrier.
RETURN SHIPPING
For the parts return procedure, please follow the appropriate instructions in the "General Returned Goods Policy” pages in the
"Policies and Literature" section of the Veeder-Root North American Environmental Products price list. Veeder-Root will not accept
any return product without a Return Goods Authorization (RGA) number clearly printed on the outside of the package.
©Veeder-Root 2019. All rights reserved.

Table of Contents
iii
1 Introduction
Product Marking Information ..........................................................................................1-1
Related Documents ...............................................................................................1-1
Related Manuals....................................................................................................1-1
Safety Warnings ............................................................................................................1-3
Safety Precautions .........................................................................................................1-3
Before You Begin ...........................................................................................................1-4
Hardware Requirements For Vac Sensors - Verifying Installation .................................1-5
TLS-350/TLS-350R Consoles ...............................................................................1-5
TLS-450PLUS Console .........................................................................................1-5
STP/Tank...............................................................................................................1-5
Available Vac Sensor Kits ..............................................................................................1-5
How To Use This Manual ..............................................................................................1-6
2 Vac Sensor Installation
Overview ........................................................................................................................2-1
Field Assembling Vac Sensor/Vac Float modules .........................................................2-2
Installing Vac Sensor Housing Support Bracket ............................................................2-5
Attaching Vac Sensor Cables and Tagging Vac Sensor/Vac Float Pairs ......................2-6
Installing Vac Sensor Housing onto Support Bracket ....................................................2-6
Vacuum Connections within Containment Sump ...........................................................2-7
Vacuum Connections to a Double-Wall Product Line............................................2-7
Vacuum Connections to a Double-Wall Vapor Return Line...................................2-7
Vacuum Connections to a Double-Wall Containment Sump .................................2-8
Vacuum Connections to a Double-Wall Steel Tank...............................................2-8
Vacuum Connections to a Double-Wall Fiberglass Tank ......................................2-9
Vacuum Connections to Siphon Port of the Pump ..............................................2-10
Epoxy Sealing Vac System Field Wiring Connections .................................................2-11
3 Vac System Field Wiring - TLS-350/350R Consoles
Connecting Vac Sensor to TLS-350/350R Console .......................................................3-1
Connecting Pump Control to TLS-350/350R Console ...................................................3-1
For Sites with PLLD or WPLLD Leak Detection ....................................................3-1
For Sites without PLLD or WPLLD Leak Detection ...............................................3-1
Disable Extended Run Feature in the Pump Controller .................................................3-3
4 Vac System Testing - TLS-350/350R Consoles
ATM Pressure Sensor Setup .........................................................................................4-1
Vac Sensor Setup ..........................................................................................................4-2
Identifying Vac Sensor Zones................................................................................4-2
Performing Vac Sensor Setup ...............................................................................4-4
Vacuum Integrity Test Prior to Filling Tank (Optional) ...................................................4-5
Running a Manual Test ..................................................................................................4-5
Vacuum Sensor Operability Test ...................................................................................4-7
5 Vac System Field Wiring - TLS-450PLUS Console
Connecting Vac Sensors To The TLS-450PLUS Console .............................................5-1
Connecting Pump Control to TLS-450PLUS Console ...................................................5-1
For Sites with PLLD Leak Detection......................................................................5-1
For Sites without PLLD Leak Detection.................................................................5-2
Disable Extended Run Feature in the Pump Controller .................................................5-3

Table of Contents
iv
6 Vac System Testing - TLS-450PLUS Console
ATM Pressure Sensor Setup .........................................................................................6-1
Vac Sensor Setup ..........................................................................................................6-2
Identifying Vac Sensor Zones................................................................................6-2
Performing Vac Sensor Setup ...............................................................................6-4
Vacuum Integrity Test Prior to Filling Tank (Optional) ...................................................6-6
Running a Manual Test ..................................................................................................6-7
Vacuum Sensor Operability Test ...................................................................................6-8
1 Appendix A: Vac Sensor Test Values Record
Figures
Figure 2-1.- Installation Example Of Four Vac Sensor W/Tank
Interstitial Monitoring ............................................................................2-1
Figure 2-2.- Vac Sensor Assembly Dimensions ......................................................2-2
Figure 2-3.- Attaching Four Vac Sensors/floats To The Housing ............................2-3
Figure 2-4.- Vac Sensor/Vac Float Tubing Connections .........................................2-4
Figure 2-5.- Vac Sensor /Tank Interstice Tubing Connections ................................2-4
Figure 2-6.- Attaching Vacuum Tubing Between Vac Sensors ...............................2-5
Figure 2-7.- Attaching Vac Sensor Housing Support Bracket .................................2-5
Figure 2-8.- Identifying Vac Sensor/Vac Float Pairs ...............................................2-6
Figure 2-9.- Attaching Vac Sensor Housing To Support Bracket ............................2-7
Figure 2-10.- Example Vacuum Termination Fitting - Double-wall Pipe ....................2-8
Figure 2-11.- Example Tank Interstitial Sensor Riser Cap Connections -
Steel And Fiberglass Tanks .................................................................2-9
Figure 2-12.- Example Vacuum Source Connection At The Red Jacket STP ........2-10
Figure 2-13.- Connecting Vacuum Tubing From Pump Siphon Port
To Vac Sensor ...................................................................................2-10
Figure 2-14.- Field Wiring Connections ...................................................................2-11
Figure 2-15.- Epoxy Sealing Wiring Connections ....................................................2-12
Figure 3-1.- Attaching Vac Sensors To Smart Sensor With Pressure
Sensor Module .....................................................................................3-1
Figure 3-2.- Connecting Pump Sense And 4-Relay Modules -
Red Jacket Pumps ...............................................................................3-2
Figure 3-3.- Connecting Pump Sense And 4-Relay Modules -
Non-Red Jacket Pumps .......................................................................3-3
Figure 4-4.- TLS Console Vac Sensor Manual Test ................................................4-6
Figure 4-5.- TLS Console Vac Sensor Evac Hold Procedure .................................4-7
Figure 5-1.- Vac Sensor Inputs ...............................................................................5-1
Figure 5-2.- Red Jacket STP Control And Pump Sense Inputs ..............................5-2
Figure 5-3.- Non-Red Jacket STP Control And Pump Sense Inputs .......................5-3
Tables
Table 4-1.- Vac Sensor Zone Worksheet .................................................................4-2
Table 6-2.- Vac Sensor Zone Worksheet .................................................................6-2

1-1
1 Introduction
These instructions describe the installation of Veeder-Root Vacuum sensors in a STP containment sump to monitor
the interstitial space of:
•Double-wall product lines
•Double-wall vapor return lines
•Double-wall tank vent lines
•Double-wall tanks*
•Double-wall containment sumps
*Double-walled tanks must provide access for installation of a liquid sensor at the lowest point of the interstice.
Product Marking Information
RELATED DOCUMENTS
Documents Required to Install Equipment
This intrinsically safe apparatus is only for use as part of a Veeder-Root Automatic Tank Gauging System (ATG
Console with probes and sensors). To install intrinsically safe apparatus, use the specific control drawing that
appears on the nameplate of the applicable associated apparatus (ATG Console):
The control drawings contain information related to the correct installation of the overall intrinsically Safe System.
This includes information such as maximum number of apparatus, specific apparatus allowed in the system,
maximum cable lengths, references to codes, proper grounding and so on. Control drawings can be found at
veeder.com.
RELATED MANUALS
TLS-3XX Setup Manual 576013-623
V-R Sensor Operability Testing Guide 577013-814
Vacuum Sensor System Troubleshooting Manual 577013-873
TLS-450PLUS/TLS4 Operator's Manual 577014-110
TLS-450PLUS Consoles Module Replacement 577014-077
Associated Apparatus UL/cUL Control Drawing Number
TLS-350, TLS-350R 331940-011
TLS-450/8600 Consoles 331940-008
TLS-XB/8603 331940-019

1 Introduction Product Marking Information
1-2
Product Label Contents
Failure to install this product in accordance with its instructions and warnings will result in
voiding of all warranties with this product.
CLASS I Division 1, Group D
CLASS 1, Zone 0
Hazardous Location
Intrinsically Safe Apparatus
I.S. Sensor
Connections
Intrinsically Safe
Wiring
White (+)
(+)
Black (-)
(-)
I.S.
Rigid Conduit
GENERAL PRODUCT WIRING DIAGRAM
Seal-Off
I.S.
I.S.
Weatherproof
Junction Box
Vac
Sensor
Vac Float or tank
interstitial sensor
Black
Black
White
Red
Red
Non-Hazardous Location
Associated Apparatus
8470/TLS-350;
8482/TLS-350R ATG Console
1
2
Non-Hazardous Location
Associated Apparatus
8600/TLS-450PLUS ATG Console
+
+
OR
I.S. CIRCUIT FOR HAZLOC SENSOR
F/N 857280-XXX
S/N XXXXXX
-40°C < Ta< +60°C
CL I, DIV. 1, GP.D
CL I, ZONE 0
AEx iaIIA
Ex iaIIA
TC=T4 MANUAL NO. 577013-836
SECURITE INTRINSEQUE
NOTICE

1-3
1 Introduction Safety Warnings
Safety Warnings
To protect yourself and your equipment, observe the following warnings and important information:
Safety Precautions
The following safety symbols are used throughout this manual to alert you to important safety hazards and
precautions.
EXPLOSIVE
Fuels and their vapors are extremely explo-
sive if ignited.
FLAMMABLE
Fuels and their vapors are extremely flam-
mable.
ELECTRICITY
High voltage exists in, and is supplied to, the
device. A potential shock hazard exists.
TURN POWER OFF
Live power to a device creates a potential
shock hazard. Turn Off power to the device
and associated accessories when servicing
the unit.
READ ALL RELATED MANUALS
Knowledge of all related procedures before
you begin work is important. Read and
understand all manuals thoroughly. If you do
not understand a procedure, ask someone
who does.
INJURY
Careless or improper handling of materials
can result in bodily injury.
NO POWER TOOLS
Sparks from power tools (such as drills) can
ignite fuels and their vapors.
NO OPEN FLAMES
Open flames from matches, lighters, weld-
ing torches, etc. can ignite fuels and their
vapors.
NO SMOKING
Sparks and embers from burning cigarettes
or pipes can ignite fuels and their vapors.
TURN OFF CELL PHONES/PAGERS
Sparks from electronic devices in the vicin-
ity of gasoline storage tanks could cause an
explosion or fire resulting in bodily injury or
death.
WEAR EYE PROTECTION
Wear eye protection when working with
pressurized fuel lines or epoxy sealant to
avoid possible eye injury.
GLOVES
Wear gloves to protect hands from irritation
or injury.
WARNING
WARNING indicates a hazardous situation
which, if not avoided, could result in death or
serious injury.
CAUTION
CAUTION indicates a hazardous situation
which, if not avoided, could result in minor
or moderate injury.
NOTICE
NOTICE is used to address practices not
related to physical injury.
USE SAFETY BARRICADES
Unauthorized people or vehicles in the work
area are dangerous. Always use safety
cones or barricades, safety tape, and your
vehicle to block the work area.
OFF
WARNING
CAUTION
NOTICE

1 Introduction Before You Begin
1-4
Before You Begin
Prior to backfilling the tank top (i.e. covering the lines, UDC, etc.) the contractor is strongly advised to test all of
the secondary containments for leaks, and to monitor the vacuum during the backfill process. Any leakage
detected must be repaired to prevent future vacuum system alarms.
Do not exceed equipment manufacturer’s recommended vacuum levels!
While it is common practice to use an independent vacuum source to provide the initial vac-
uum, you must ensure that pump lubricating oil and any other foreign substance is not intro-
duced into the SCVS system. Failure to do so may damage the SCVS system and will void
warranty.
WARNING
This product is to be installed in systems operating near locations where
highly combustible fuels or vapors may be present.
FAILURE TO COMPLY WITH THE FOLLOWING WARNINGS AND SAFETY
PRECAUTIONS COULD CAUSE DAMAGE TO PROPERTY, ENVIRONMENT,
RESULTING IN SERIOUS INJURY OR DEATH.
1. Read and follow all instructions in this manual, including all safety warnings to
protect yourself and others from serious injury, explosion, or electrical shock.
2. Comply with all applicable codes including: the National Electrical Code;
federal, state, and local codes; and other applicable safety codes.
3. To protect yourself and others from being struck by vehicles, block off your
work area during installation or service.
4. Turn off, tag, and lockout power to the STP before connecting or servicing
wiring to the STP.
5. Do not alter or modify any component or substitute components in this kit.
6. Substitution of components may impair intrinsic safety.
7. Field wiring to the Sensor must not share a conduit with any non-intrinsically
safe device’s wiring.
8. Before installing or taking the unit into a hazardous area, earth the unit in a
safe area to remove any static charge. Then immediately transport the unit to
the installation site. Do not rub or clean the unit prior to installation. Cleaning
is not required under normal service conditions. Do not rub or clean the unit
after installation. If the unit is not fixed to a known earth point when installed,
ensure that a separate earth connection is made to prevent the potential of a
static discharge. When fitting or removing the unit, use of anti-static footwear
or clothing is required.
9. Materials used in the construction of this device do not contain, by mass, more
than 10% in total of aluminum, magnesium, zirconium and titanium or 7.5% in
total of magnesium, titanium and zirconium.
OFF
CAUTION
NOTICE

1-5
1 Introduction Hardware Requirements For Vac Sensors - Verifying Installation
Hardware Requirements For Vac Sensors - Verifying Installation
TLS-350/TLS-350R CONSOLES
•TLS-350/350R with version 24C or later software
•At least one Smart Sensor with Pressure Sensor Module
•Line leak (PLLD or WPLLD), OR w/o line leak, a Pump Sense and a 4-Relay module is required for STP control.
TLS-450PLUS CONSOLE
•TLS-450PLUS with version 9B or later software
•At least one Universal Sensor Module (USM) with attached ATM pressure board
•At least one Input/Output Module (IOM) for STP control
STP/TANK
Only V-R supplied vacuum hose (P/N 332310-001, -002, -003) is approved for use with the
SCVS system).
•STP siphon port with Siphon Check Valve (P/N 188-241-5) installed. An external Siphon Check Valve (P/N
188-241-5) must be used when making a vacuum source connection between the SCVS system sensors and
the siphon port cartridge for the following STPs including Red Jacket Standard, Red Jacket Quantum and FE
pumps.
•Schrader Fitting 576008-672 (optional for North American installations; not required for EU - fitting is included)
•Siphon manifolded tank requirements:
- The Red Jacket STP requires a secondary siphon assembly (P/N 410151-001).
- The Quantum STP comes with two siphons as standard equipment - no additional parts are required.
- FE pumps require a secondary siphon kit (FE P/N 402-507-930).
Available Vac Sensor Kits
Vac sensor kits are available in several configurations.
1, 2, 3 or 4 Vac Sensor/Vac Float Pre-Assembled Kits - includes mounting hardware, tubing/connections,
and cables (for one containment sump)
•1, 2, 3 or 4 Vac Sensor kit w/steel float
•1, 2, 3 or 4 Vac Sensor kit w/fiberglass 4’, 6’, 8’, or 10’ float (includes relief valve)
•1,2, 3 or 4 Vac Sensor kit w/o tank interstitial sensor
•1, 2, 3 or 4 Vac Sensor kits w/o tank float for EU installations (ATEX approved)
Individual Kits (requires Vac Sensor/Vac Float field assembly)
Individual kits require assembly of the Vac Sensor/Vac Float components in the field. V-R
recommends purchasing pre-assembled kits.
NOTICE
NOTICE

1 Introduction How To Use This Manual
1-6
•Mounting kit - one is required per containment sump.
•Secondary piping vacuum monitoring kit - one each is required for product line, vapor recovery line, or
containment sump interstice monitoring - includes mounting hardware, tubing/connections and cables.
•Interstitial sensor kit for steel tank - includes Vac Sensor, mounting hardware, tubing/connections, riser cap, 3-
way valve and cables.
•4’, 6’, 8’, or 10’ diameter fiberglass tank interstitial sensor kit - includes Vac Sensor, mounting hardware, tubing/
connections, riser cap, relief valve, 3-way valve and cables.
How To Use This Manual
The sections to follow in this manual when installing and setting up the Vac Sensor System depend on the console
being used.
Console Applicable Sections
TLS-350/350R Sections 1, 2, 3, 4 and Appendix A
TLS450PLUS Sections 1, 2, 5, 6 and Appendix A

2-1
2 Vac Sensor Installation
Overview
A simplified Veeder-Root vacuum sensor installation in an STP containment sump is shown in Figure 2-1. Vac
Sensor (VS) and Vac Float (VF) modules are assembled in a housing which is shown in Figure 2-2. A separate
mounting bracket (see Figure 2-2) is easily attached to the STP riser to support the Vac Sensor housing.
Approximately 12 inches (304.8mm) of clearance is required below the pump manifold for the Vac Sensor
components. Final vacuum connections are made once the housing and bracket are in place. A 1/4” NPT port into
the interstitial space of the double-wall vapor return line, double-wall product line, and/or double-wall containment
sump must be accessible in the containment sump. For installations requiring tank interstice monitoring, a riser
must be in the same containment sump for the tank interstitial sensor. Field wiring connections of the Vac Sensor
components are sealed in a customer supplied containment sump junction box (JB).
Figure 2-1.- Installation Example Of Four Vac Sensor W/Tank Interstitial Monitoring
Use only the materials specified in this manual during installation. Use of any other mate-
rials or lubricants may damage the SCVS system and will void warranty. Lubricate fittings
only with soapy water - do not use any other material.
Product line
vacuum fitting
Vapor return line
vacuum fitting
Double wall sump vacuum
fitting (If multiple ports are
provided in the sump wall,
install vacuum fitting in
lowest one.
Double wall tank
To console
Seal off
Tank interstitial
vacuum fittings Four Vac Sensor
Housing Assembly
bracketed to riser
STP
Wiring from sensor in
tank interstice connects
to vac sensor in J box
Barbed fitting in siphon
port for vacuum source
Dual weatherproof junction
boxes w/cord grip wiring
entries containing epoxy
sealed connections
CAUTION

2 Vac Sensor Installation Field Assembling Vac Sensor/Vac Float modules
2-2
Figure 2-2.- Vac Sensor Assembly Dimensions
Field Assembling Vac Sensor/Vac Float modules
If you are field assembling the Vac Sensor/Vac Floats into the Vac Sensor housing continue to Step 1. If you are
installing the pre-assembled 2, 3, or 4 Vac Sensor kit go to “Installing Vac Sensor Housing Support Bracket” on
page 2-5.
1. Get the Vac Sensor modules and brackets from each of the secondary piping vacuum monitoring kits. If a tank
interstice is being monitored, also get the Vac Sensor module and bracket from that kit.
2. Get the Vac Sensor housing from the mounting kit and attach each of the Vac Sensors (up to 4) to the top of
the housing using #10 x 3/8” self-tapping screws as shown in Figure 2-3. Mount the Vac Sensors with the
‘STP Siphon’ labeled port facing the front of the housing.
3. For Vac Sensors requiring Vac Floats, continue to Step 4. For the Vac Sensor monitoring the tank interstice
skip to step.
4. Get the Vac Floats, support brackets, plastic valves and #10 x 1/2” self-tapping screws from the secondary
piping vacuum monitoring kits.
If you are not monitoring a tank interstice, there is a maximum of two left-hand Vac Sensor/Float mounting posi-
tions and two right-hand Vac Sensor/Float mounting positions in the Vac Sensor Housing (Figure 2-3). If a tank
interstice is being monitored, then one of the four Vac Sensors will have no Vac Float attached.
5. Get the plastic valves, barbed elbows, tapered bushings and cord grip nuts from the Vac Float kits. Insert
bushings and screw cord grip nuts into the two ports of the Vac Float. Insert a valve into one port and a barbed
STP
Vac Sensor
housing 6.25''
(158.8mm)
9''
(228.6mm)
Support bracket
vacsendimen.eps
Tensionclamp
Riser
Sump
Front View Side View
9.625''
(244.5mm)12''
(304.8mm)

2-3
2 Vac Sensor Installation Field Assembling Vac Sensor/Vac Float modules
elbow into the other port of each Vac Float. Orient elbow and valves in Vac Floats as shown in Figure 2-4 then
tighten nuts to secure the fittings.
6. Get the angled support brackets from each Vac Float kit. Depending on the Vac Float’s position in the housing,
orient the bracket so that when you slip the large hole in the front of the bracket over the valve handle, the two
holes in the side of the bracket are in line with the two holes in the side of the Vac Float body as shown in
Figure 2-3. Secure the Vac Float assembly to the housing using two #10 x 1/2” self-tapping screws which
screw into the two holes in the side of the Vac Float.
Figure 2-3.- Attaching Four Vac Sensors/floats To The Housing
7. Get barbed elbows, tapered bushings and cord grip nuts (1 each for each Vac Sensor) from the secondary
piping vacuum monitoring kits. Insert a tapered bushing and barbed elbow in the bottom port labeled VAC
TEST (embossed on cover) of one of the Vac Sensors. Orient the elbows as shown in the Figure 2-4, then
tighten the cord grip nut.
8. From the kit’s 1/4” tubing, cut a piece of the 1/4” tubing and connect the VAC TEST port in one of the Vac
Sensors to the rear elbow fitting in one of the Vac Floats (preferably the one under it). Keep the connection kink
free and as short as possible (see Figure 2-4). Repeat this procedure for each additional Vac Sensor/Vac Float
pair. Skip to Step 10.
9. If the tank interstice is monitored, get a barbed elbow, tapered bushing and cord grip nut (1 each) from the Vac
Sensor tank interstice monitoring kit. Insert a tapered bushing and barbed elbow into the bottom port labeled
VAC TEST (embossed on cover) of the Vac Sensor without a Vac Float. Orient the elbow as shown in the
Figure 2-5, then tighten the cord grip nut.
10.Get the barbed tees, tapered bushings, cord grip nuts and one barbed elbow from the vacuum monitoring kits.
11.Looking at the front of the Vac Sensor housing, insert the elbow in the side vacuum port bushing labeled ‘STP
Siphon’ (on the Vac Sensor cover) in the Vac Sensor closest to the side of the housing. Orient the elbow so
that the open half is horizontal and pointing to the other Vac Sensors (see Figure 2-6). Insert a tee in the same
vacuum port in each of the other Vac Sensors. Orient the tees in the horizontal position, except the Vac Sensor
closest to the other side of the Vac Sensor housing. Remove this tee and orient it so that one end points
(2) #10 x 1/2" self-tapping
screws (typ. ea. valve/vac
float ass'y.)
#10 x 3/8" self-tapping screws
(2 each Vac Sensor)
Vac Sensor
housing - back
Vac Sensor housing - front
Vac Sensor - STP
Siphon port (typ.)
Left hand ass'y Right hand ass'y

2 Vac Sensor Installation Field Assembling Vac Sensor/Vac Float modules
2-4
toward the other tees and one end points out at you then insert the inlet end into the bushing. Measure and cut
a piece of the tubing approximately 1-3/4” (44.5mm) long to connect each of the tees and elbow as shown in
Figure 2-6. Once the tubing pieces are cut, remove the barbed elbows and tees to push on the tubing pieces,
then reinsert this connected assembly back into the Vac Sensor bushings and tighten the nuts.
Figure 2-4.- Vac Sensor/Vac Float Tubing Connections
Figure 2-5.- Vac Sensor /Tank Interstice Tubing Connections
Vac
float
Vac Sensor
Cable connector
(TLS port)
3-way ball valve - Valve handle shown
in operating position (down). To vent
monitored interstice rotate handle up.
Vent port
Tapered bushing/nut
Tapered bushing/nut
Tubing connects to interstitial
space being monitored
Cable pair to
junction box
Barbed elbow (VAC TEST port)
Barbed elbow
Barbed tee
(STP SIPHON port)
Front of housing
Vac Sensor
Cable connector (TLS port) Tapered bushing/nut
Tubing connects to Tank Interstice
3-way valve
Cable pair to
junction box
vacsensors/fig6a.eps
Barbed elbow (VAC TEST port)
Barbed tee
(STP SIPHON port)
Front of housing

2-5
2 Vac Sensor Installation Installing Vac Sensor Housing Support Bracket
Figure 2-6.- Attaching Vacuum Tubing Between Vac Sensors
Installing Vac Sensor Housing Support Bracket
Get the Vac Sensor housing support bracket and the curved tensioning clamp from the mounting kit. Hold the
bracket against the STP riser. Place the curved clamp around the back of the riser and hook the four notches in the
clamp over the four barbs in the top of the bracket (see Figure 2-7). Position the bracket so the top of bracket is at
least 12 inches (304.8mm) above the containment sump floor and hand tighten the tension adjust knob on the
back of the clamp until the assembly is secure.
Figure 2-7.- Attaching Vac Sensor Housing Support Bracket
Barbed elbow
Orient the barbed
tee on this end so
one of the ends
is facing front
Piece of tubing (typ.)
Barbed tee
Curved clamp
Tensionadjust knob
slots (4) - positionover
barbs onbracket
STP Riser
VAC Sensor
housing support
bracket
Sump
12'' (304.8mm)
Minimum

2 Vac Sensor Installation Attaching Vac Sensor Cables and Tagging Vac Sensor/Vac Float Pairs
2-6
Attaching Vac Sensor Cables and Tagging Vac Sensor/Vac Float Pairs
1. Next get the Vac Sensor cables (with connectors on one end) from the kit(s) and attach the connector of each
cable to each of the Vac Sensor ports labeled TLS (on the Vac Sensor cover). Uncoil each of the Vac Float
cables. Notice that each Vac Sensor, except the one for the tank interstice, has a short piece of tubing
connecting it to a Vac Float beneath it (Figure 2-8). A Vac Sensor/Vac Float tubing connected pair must be
wired together in the junction box.
2. Use a felt pen and write on the top of the Vac Sensor housing to what device each of the Vac Sensors below
will be attached (see Figure 2-9). For example, P = product line, S = containment sump interstice, V = vapor
line, and T = tank interstice. NOTE: If the mark you wrote on the housing over the first Vac Sensor was ‘P’,
locate the cable ends of this Vac Sensor/Vac Float pair, tape them together about every foot along their length
and at their ends, and tag the end of this cable pair ‘P’ or ‘Product Line Vac Sensor’. Repeat this taping and
tagging for each of the Vac Sensor/Vac Float pairs. The Vac Sensor marked ‘T’ will only have one cable, so tag
the end of this cable ‘T’ for ‘Tank Vac Sensor’.
Figure 2-8.- Identifying Vac Sensor/Vac Float Pairs
Installing Vac Sensor Housing onto Support Bracket
Route all of the cables through the opening in the mounting bracket and attach the Vac Sensor housing to the
bracket by pushing the four hooks on the rear of the housing into the four slots in the bracket (see Figure 2-9)
Product
line
Vacuum
input from
STP
Vapor
line
SumpTank

2-7
2 Vac Sensor Installation Vacuum Connections within Containment Sump
Figure 2-9.- Attaching Vac Sensor Housing To Support Bracket
Vacuum Connections within Containment Sump
VACUUM CONNECTIONS TO A DOUBLE-WALL PRODUCT LINE
1. Get a 1/4” NPT/ barbed adapter and spring clamp from the Vac Sensor install kit.
2. Apply an adequate amount of fresh, UL classified for petroleum, non-setting thread sealant (herein after
referred to as sealant) to the threads of the 1/4” NPT barbed fitting and screw it into the 1/4” NPT port in the
vacuum termination fitting of the product line (Figure 2-10).
In some installations, the double-walled piping is equipped with one or more Schrader
valves. You can connect the vacuum tubing directly to the Schrader valve using the Schrader
fitting (P/N 576008-672 for North American installations; P/N 576008-504 for EU installa-
tions). Any unused Schrader fittings must be capped to avoid leaks.
3. Get the 1/4” ID tubing from the install kit and measure a piece that will reach the barbed fitting on the bottom
of the plastic valve (see Figure 2-4) that is connected to the Vac Sensor/Vac Float pair you labeled ‘P’. Plan
enough tubing so that it isn’t stretched between fittings or have any sharp bends/kinks in it. Cut and install this
tubing and secure tubing ends with spring clamps.
VACUUM CONNECTIONS TO A DOUBLE-WALL VAPOR RETURN LINE
Repeat steps 1 - 2 of the Product Line connection instructions for the vapor return line connection, except:
•Install the 1/4” NPT barbed fitting in the vacuum termination port of the vapor return line (see Figure 2-10),
•Connect one end of the tubing to the vapor return line barbed adapter and the other end to the barbed fitting on
the bottom of the plastic valve that is connected to the Vac Sensor/Vac Float pair you labeled ‘V’. Plan enough
tubing so that it isn’t stretched between fittings or have any sharp bends/kinks in it. Cut and install this tubing
and secure tubing ends with spring clamps.
STP Riser
Vac Sensor housing
support bracket
Route cables through
opening in back of
bracket
Vac Sensor housing
Vac sensor device
connection guide
(use felt pen)
NOTICE

2 Vac Sensor Installation Vacuum Connections within Containment Sump
2-8
VACUUM CONNECTIONS TO A DOUBLE-WALL CONTAINMENT SUMP
Repeat steps 1 - 2 of the Product Line connection instructions for the sump interstice connection, except:
•Install the 1/4” NPT barbed fitting in the interstitial space access port provided in the sump’s wall (if multiple
ports are provided, select the lowest one).
•Connect one end of the tubing to the sump interstice barbed fitting and the other end to the barbed fitting on
the bottom of the plastic valve that is connected to the Vac Sensor/Vac Float pair you labeled ‘S’. Plan enough
tubing so that it isn’t stretched between fittings or have any sharp bends/kinks in it. Cut and install this tubing
and secure tubing ends with spring clamps.
Figure 2-10.- Example Vacuum Termination Fitting - Double-wall Pipe
VACUUM CONNECTIONS TO A DOUBLE-WALL STEEL TANK
Double-walled tanks must provide access for installation of a liquid sensor at the lowest
point of the interstice.
1. Get the tank’s interstitial riser cap, interstitial sensor, cord grip components, 3-way ball valve, 1/4” NPT close
nipple, 1/4” NPT/barbed adapter fitting, and spring clamps from the kit.
2. Assemble the cord grip components and apply sealant to its threads. Screw it into the 1/2” NPT hole in the
cap.
3. Slowly lower the steel tank interstitial sensor into the tank riser until it rests on the bottom of the riser. Push the
end of the sensor’s cable through the loosened cord grip in the cap - being careful not to lift the sensor off
bottom. Apply sealant to the threads of the riser pipe and screw on the cap until tight. Tighten the cable cord
grip.
4. Apply sealant onto the threads of one end of the nipple and screw it into the 1/4” NPT port in the cap. Apply
sealant to the other end of the nipple and screw on the 3-way ball valve. Apply sealant to the threaded end of
the barbed adapter and screw it into the side port of the 3-way ball valve. (see Figure 2-11).
5. Measure a length of 1/4” ID tubing to connect the VAC TEST port on the Vac Sensor (labeled ‘T’) to the tank’s
interstitial 3-way ball valve. Plan enough tubing to avoid sharp bends in it or stretching it. Cut and install this
tubing and secure tubing ends with spring clamps.
6. The Vac Sensor labeled ‘T’, and which is connected to the 3-way ball valve in the tank interstice riser cap, must
be wired together with the tank interstice liquid sensor in the junction box. Locate the ends of the Vac Sensor
cable labeled ‘T’ and the tank interstitial liquid sensor cable, tape them together, and tag them ‘Tank Vac
Sensor’.
TO STP
Double wall
product line
to dispensers
1/4" NPT port invacuumline
terminationfitting (may contain
Schradervalve)
NOTICE

2-9
2 Vac Sensor Installation Vacuum Connections within Containment Sump
Figure 2-11.- Example Tank Interstitial Sensor Riser Cap Connections - Steel And Fiberglass Tanks
VACUUM CONNECTIONS TO A DOUBLE-WALL FIBERGLASS TANK
1. Get the tank’s interstitial riser cap, interstitial sensor, cord grip components, 3-way ball valve, 1/4” NPT close
nipple, 1/4” NPT/barbed adapter fitting, spring clamps, and relief valve from the kit.
2. Assemble the cord grip components and apply sealant onto its threads. Screw it into one of the 1/2” NPT
holes in the cap.
3. Install the fiberglass tank interstitial sensor into the tank riser following the instructions accompanying the
sensor (manual P/N 576013-617). Once installed, push the end of the sensor’s cable through the loosened
cord grip in the cap - being careful not to alter the sensor’s position. Apply an adequate amount of sealant to
the threads of the riser pipe and screw on the cap until tight. Tighten the cable cord grip.
4. Apply sealant onto the threads of one end of the nipple and screw it into the 1/4” NPT port in the cap. Apply
sealant to the other end of the nipple and screw on the 3-way ball valve. Apply sealant to the threaded end of
the barbed adapter and screw it into the side port of the 3-way ball valve. (see Figure 2-11).
5. Apply sealant onto the threads of the relief valve and screw it into the other 1/2” NPT hole in the cap.
You must install the relief valve in the fiberglass tank riser cap or damage to the tank may
occur!
6. Measure a length of 1/4” ID tubing to connect the VAC TEST port (ref. Figure 12) on the Vac Sensor labeled
‘T’ to the tank’s interstitial 3-way ball valve. Plan enough tubing to avoid sharp bends in it or stretching it. Cut
and install this tubing and secure tubing ends with spring clamps.
7. The Vac Sensor labeled ‘T’, and which is connected to the 3-way ball valve in the tank interstice riser cap, must
be wired together with the tank interstice liquid sensor in the junction box. Locate the ends of the Vac Sensor
cable labeled ‘T’ and the tank interstitial liquid sensor cable, tape them together, and tag them ‘Tank Vac
Sensor’.
Relief valve
(1/2" NPT)
1/4" NPT close nipple
Sensorcable
to junctionbox
Cord grip
Risercap
FIBERGLASS TANK
Sensorcable
to junctionbox
1/4" ID tubing
to Vac SensorCord grip
Risercap
STEEL TANK
1/4" NPT
close nipple
3-way ball
valve
3-way ball
valve
1/4" NPT
barbed fitting
Spring clamp
FLOW
1/4" ID tubing
to Vac Sensor
1/4" NPT
barbed fitting
Spring clamp
FLOW
CAUTION

2 Vac Sensor Installation Vacuum Connections within Containment Sump
2-10
VACUUM CONNECTIONS TO SIPHON PORT OF THE PUMP
1. Figure 2-12 is an example diagram of the vacuum connection at the The Red Jacket STP.
It is recommended that you replace the Siphon Jet assembly on FE Petro pumps used with
the Vac Sensor.
Figure 2-12.- Example Vacuum Source Connection At The Red Jacket STP
2. Measure a length of 1/4” ID tubing to connect 1/4” ID barbed tubing fitting in the siphon cartridge port and the
vacuum input open tee of the Vac Sensor (see Figure 2-13). Plan enough tubing to avoid sharp bends in it or
stretching it. Cut and install this tubing and secure tubing ends with spring clamps.
Figure 2-13.- Connecting Vacuum Tubing From Pump Siphon Port To Vac Sensor
NOTICE
1/4" NPT male to 1/4" barbed adapter
Spring clamp
STP siphoncartridge
1/4"ID tubing connects
to opentee fitting in
Vac Sensorvacuum
manifold
Siphoncartridge
ID mark*
*NOTE: For STP siphoncartridges which have the ID Mark circle,
anexternal siphoncheck valve is not required.
1/4 " ID tubing
to STP
Spring clamp
Spring clamp
'STP Siphon' port open tee