Trooper ADVANTAGE TR-100 User manual

NEGATIVE PRESSURE UNIT
TM
I.O.M. #08A 9/95 updated 11/13
INSTRUCTION MANUAL • INSTALLATION • OPERATION • MAINTENANCE
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, IN 46142
317-887-0729 fax: [phone]
Service Department fax: [phone]
www.AdvantageEnegineering.com
e-mail: [email protected]

INSTRUCTION MANUAL
TROOPER NEGATIVE PRESSURE
UNITS
TR-100 TR-200 TR-300 TR-350 TR-400 TR-500
COVERING
INSTALLATION
OPERATION
MAINTENANCE
NEGATIVE PRESSURE UNIT
TM
ADVANTAGE ENGINEERING, INC. 525 East Stop 18 Road Greenwood, IN 46142
317-887-0729 fax: [phone] Service Department fax: [phone]
www.AdvantageEnegineering.com e-mail: [email protected]

Page: 4
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
TABLE OF CONTENTS
1 GENERAL 6
1.1 Safety 6
1.2 Introduction 7
2 INSTALLATION 8
2.1 Connecting a power cord 8
2.2 Checking the phase monitor (3Ø units) 9
2.3 Connections to a mold 9
3 OPERATOR INSTRUCTIONS 10
3.1 Startup and adjustments 10
3.2 Gauge reading check 12
3.3 Pressure indicating lights 13
3.4 Shut down and storage 14
4 BASIC FUNCTION AND OPERATION 15
4.1 How an ADVANTAGE TROOPER works 15
4.2 Pressure drop across a mold 16
4.3 Mold leak simulation
(demo and operation check) 17
4.4 Using mold heaters with TROOPER units 18
4.5 Fixing problem leaks (multiple and cavity) 20
4.6 Using ADVANTAGE TROOPER as
a booster pump 21
5 TROUBLESHOOTING 22
5.1 Unit will not start - power light off -
pressure lights off 22
5.2 Unit will not start - power light on -
pressure lights off 22
5.3 Unit shuts on and off -
pressure lights on 22
5.4 Unit shuts on and off
pressure lights off 23
5.5 Low pressure switch check 24
5.6 High pressure switch check 24
5.7 Unit looses vacuum 25
5.8 Excessive air or foam in the return line 25
5.9 No coolant flow: higher mold temperature
on TROOPER line 25
5.10 Unit leaks at pump or motor housing 26
5.11 Hose collapses 26
5.12 Water drains constantly from vent line 26

Page: 5
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
6 APPENDICES 27
6.1 Maintenance procedures 27
6.2 Drain for storage 27
6.3 Specifications and performance data
(all units) 27
6.4 Operating temperature 27
6.5 Capacity 28
6.6 Weight / dimensions / port sizes 28
6.7 Changing voltage 28
6.8 Setting and resetting the overload 30
6.9 Parts failure - common causes 30
6.10 Replacement parts 32
6.11 Parts list - TR-100 33
6.12 Parts list - TR-200 34
6.13 Parts list - TR-300 35
6.14 Parts list - TR-400 36
6.15 Parts list - TR-500 37
6.16 Electronic float switch assembly
on TR-400 and TR-500 38
6.17 TROOPER flow diagram (all models) 39
6.18 TR-340, TR-400, TR-500 electrical
(pictorial) 40
6.19 TR-100, TR-200, TR-300 3Ø electrical
(pictorial) 41
6.20 TR-100, TR-200, TR-300 1Ø electrical
(pictorial) 42
6.21 TR-350, TR-400, TR-500 3Ø AC ladder
diagram 43
6.22 TR-100, TR-200, TR-300 3Ø AC ladder
diagram 44
6.23 TR-100, TR-200, TR-300 1Ø AC ladder
diagram 45
6.24 Boiling point of water at various pressures 46

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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
1.0 GENERAL
1.1 SAFETY
A. Failure to follow correct operating instructions may damage the unit.
B. Please read your manual.
C. CAUTION: the following conditions will damage this unit:
a. Running the unit at temperatures higher than 180°F
b. Using synthetic oils as a coolant fluid
c. Running with “drain” pressure less than 5 PSI below the
‘FROM MOLD’ pressure.
d. Reversing pump rotation
D. CAUTION: ‘DRAIN’ gauge must never show less than 5 PSI
pressure while unit is running or pump may be damaged.
(see troubleshooting section for more details).

Page: 7
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
A. The ADVANTAGE TROOPER
negative pressure unit is a fluid
circulating device utilizing a special
pump to create a negative pressure
inside the mold to stop any leak.
B. The above picture will give the reader
an overview of the major components
of the TROOPER system.
A- Gauge panel
B - Electrical panel door
C - Rocker switch and lights
D- Electrical panel
E- Air vent
F- Pump
G - Pump motor
H - Regulator (can’t be seen in
photograph)
1.2 INTRODUCTION
A
BC
D
E
G
H
F

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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
2.0 INSTALLATION
2.1 CONNECTING A POWER CORD
A. CAUTION: electrical connections should only be done by qualified
persons who are familiar with proper electrical safety procedures.
B. CHOOSING THE CORRECT WIRE
1. The voltage and phase of the ADVANTAGE TROOPER is
labeled at the power cord mounting hole at the back of the
terminal block.
2. For safety, ALWAYS use a
properly grounded cord.
3. 110/22/ VAC, 1Ø units: use
a standard THREE WIRE
cord, UL approved and rated
for 15 amps.
4. 230/460 VAC, 3Ø units: use
a standard FOUR WIRE
cord, UL approved and rated
for the amperage of the unit
being wired.
4. Electrical code requires
power cords to be rated
for 25% more than the Full
Load Amperage (FLA) of the
unit. FLA for every unit is
recorded on the motor serial
plate.
5. 14 Gauge wire is adequate
for all ADVANTAGE
TROOPER negative pressure
units.
6. The unit may also be wired directly to a fuse box. Always
be sure that the fuses used do not exceed the FLA rating of
the motor.
6. The power cord should be connected to the terminal block
located at the inside rear of the electrical box.
7. Mount the cord with the appropriate strain relief through the
hole provided.
8. Be sure that the ground wire of the power cord is connected
to the same position on the terminal block as the green
Terminal Block
Motor data plate

Page: 9
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
ground wire of the ADVANTAGE TROOPER.
2.2 CHECKING THE PHASE MONITOR (3Ø UNITS ONLY)
A. All three phase ADVANTAGE
TROOPERS units are equipped
with a phase monitor to protect the
pump against damage caused by
phase loss, low voltage and phase
reversal.
B. After connecting the power cord,
leave the electrical box cover open
so that the phase monitor is in view.
C. Plumbing connections are
unnecessary at this point. Be sure
that ADVANTAGE TROOPER power
switch is in the “off” position. Running the unit without fluid will
damage the stator. Connect the power supply, leave the unit “off”.
The indicator LED on the top of the phase monitor should glow.
D. If the indicator LED does not light, turn the power off and disconnect
the power supply. Swap any two (2) of the three (3) input wires at
the terminal block (DO NOT REMOVE THE GROUND).
E. Reconnect the power supply and turn the power on. The LED will
now glow, indicating that the unit is wired to the phase sequence
required for correct motor rotation.
F. NOTE: it may be necessary to slightly lower the adjustment dial
of the phase monitor to prevent nuisance tripping. CAUTION:
lowering the adjustment dial setting more than 10-12 degrees below
the precise setpoint may interfere with the proper operation of the
phase monitor.
G. Turn the power off. tighten down the screws on the electrical box
cover. The ADVANTAGE TROOPER is now protected against
phase reversal, phase loss and low voltage power faults.
2.3 CONNECTIONS TO A MOLD
A. For maximum efficiency and life of the ADVANTAGE TROOPER
unit, use hoses that are the same diameter as the ports to which
they are connected.
B. “Quick Release” fittings that are not vacuum rated, are not
recommended, as they will severely impair the use of the
ADVANTAGE TROOPER as a leak stopper and when using “water
transfer”.
Phase monitor

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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
3.0 OPERATING INSTRUCTIONS
3.1 START UP & ADJUSTMENTS
A. A simplified version of the following instruction are silkscreened on
the ADVANTAGE TROOPER cabinet for easy reference.
B. Make all hose connections to the appropriate ports at the back of
the ADVANTAGE TROOPER.
C. Begin with the ‘POWER’ switch in the ‘OFF’ position.
‘FROM MOLD
connection ‘RETURN’
connection
‘SUPPLY’
connection
‘TO MOLD’
connection
C. When using the ADVANTAGE TROOPER as a leak stopper you
will have maximum coolant flow when the “TO MOLD” line is

Page: 11
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
D. STEP 1: Back out regulator screw
(original set-up only).
a. At the top of the
ADVANTAGE TROOPER,
the regulator is on the left
side, connected to the ‘TO
MOLD’ port.
b. Back the regulator screw all
the way out (counter clock-
wise).
c. Then turn the screw in
(clockwise) until you feel it just touch the internal diaphram.
d. In this position, the regulator is off (maximum vacuum) and
is ready for adjustments to a new molding set-up.
E. STEP 2: open ‘DRAIN’ line.
a. The ‘RETURN/DRAIN’ line should always be opened first.
Because the pump is positive-displacement, if it is run
without the return line open, excessive pressure will build
up and possibly rupture the drain line hose or cause internal
pump damage.
b. After waiting a moment for internal pressure to balance, you
can read your system drain pressure in the ‘DRAIN’ gauge
at the front of the ADVANTAGE TROOPER.
F. STEP 3: open the ‘SUPPLY’ line.
G. STEP 4: turn the unit on.
a. The rocker power switch
will light to indicate that
there is power supplied to
the unit.
b. The ADVANTAGE
TROOPER will run now,
even though the mold
lines are closed. All
ADVANTAGE TROOPER
units are equipped with
an internal supply-to-pump
by-pass line to protect the
pump from running dry.
c. The ‘FROM MOLD’ gauge on the front of the unit will show
maximum vacuum, about minus (-)24, which is, 24 inches
of mercury.
Regulator
Rocker power switch

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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
H. Step 5: open the ‘FROM MOLD’ line.
a. This will place your mold lines under a vacuum so that
the mold will not pressurize when the ‘TO MOLD’ line is
opened.
I. Step 6: open the ‘TO MOLD’ line.
a. At this point there will be little or no flow through the mold
because the regulator is off.
J. Step 7: adjust the regulator (original set-up only).
a. Watch the mold at the leak point and slowly turn the
regulator screw in (clock-wise) until water begins to leak
out.
b. Now, slowly turn the regulator screw out (counter clock-
wise) until the leak stops and continue an additional
one-half turn.
c. The ADVANTAGE TROOPER is now adjusted for the
maximum coolant flow through the mold. Continuing to back
out the regulator screw will reduce flow until the regulator is
completely shut off.
K. NOTE: (original set-up only): the regulator only needs to be
adjusted once for a particular mold. After initial set-up the unit may
be shut down and restarted without having to readjust the regulator.
3.2 GAUGE READING CHECK
A. NOTE: internal dampeners are used in all ADVANTAGE
‘TO MOLD’ ‘DRAIN’ ‘FROM MOLD’

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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
TROOPER gauges to protect them from extreme pressure
oscillations. Gauge readings will lag slightly behind actual line
pressures.
B. ‘TOMOLD’GAUGE: this gauge should show positive pressure. If
this gauge reads negative it means that the entire mold circuit is
under vacuum, you may not have optimum coolant flow.
C. ‘SUPPLY’GAUGE: when the unit is running, this gauge will show
supply pressure to the pump. When the unit is turned off the
reading becomes inaccurate as internal pressures balance.
D. ‘DRAIN’GAUGE: when the unit running, this gauge will show the
return pressure the unit is pumping against. When the unit is turned
off, the reading becomes inaccurate as internal pressures balance.
E. CAUTION: ‘DRAIN’ gauge should never show less than five (5)
PSI below ‘TO MOLD’ pressure while unit is running or pump may
be damaged. (See appendix - ‘Parts Failure - Stator’).
F. Static pressure readings of house system may be obtained by
turning the unit off. Shut off the ‘DRAIN’ and leave the ‘SUPPLY’
open to read the supply pressure. Shut off the ‘SUPPLY’ and leave
the ‘DRAIN’ open to read the drain pressure.
G. ‘FROMMOLD’GAUGE: this gauge should show negative
pressure when the ADVANTAGE TROOPER is running. If you
have no leaks you may open the regulator (clock-wise) as much
as possible without this gauge reading positive pressure, this is the
maximum flow.
H. CAUTION: ‘FROM MOLD’ gauge must always be less pressure
than the ‘DRAIN’ while unit is running or pump may be damaged.
(See appendix - ‘Parts Failure - Stator’).
3.3 PRESSURE INDICATOR LIGHTS
A. These lights warn of pressures outside of acceptable limits. They
‘SUPPLY PRESSURE
TOO LOW’
‘DRAIN PRESSURE
TOO HIGH’

Page: 14
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
are off during normal operation.
B. Pressure switches on all ADVANTAGE TROOPER units are preset
to prevent pump damage and extend the life of the unit. DO NOT
ADJUST OR DISABLE PRESSURE SWITCHES.
C. ‘SUPPLYPRESSURETOOLOW’: this indicator light will come on
when the unit has shut down because the supply pressure is less
than 8 PSI. All ADVANTAGE TROOPER units have a low pressure
shut off switch connected to the supply plumbing to prevent the
pump from being damaged by running dry.
D. ‘DRAINPRESSURETOOHIGH’: this indicator light will come on
when the unit has shut down because the drain pressure is greater
than the pumping capacity of the unit. The high pressure shut off
switch protects the motor from being damage by excessive strain.
E. FOR ADDITIONAL INFORMATION OR PROBLEM SOLVING
REFER TO THE TROUBLESHOOTING GUIDE.
3.4 SHUT DOWN & STORAGE
A. The following instructions are silk-screened on the top of the unit for
easy reference.
B. Step 1: shut off “TO MOLD’ line.
C. Step 2: To purge mold completely, allow air to enter ‘TO MOLD’
hose until all water is out.
D. Step 3: Shut off ‘FROM MOLD’ line.
E. Step 4: Turn off unit.
F. Step 5: Shut off ‘SUPPLY’ line.
G. Step 6: Shut off “DRAIN’ line.
H. Step 7: Drain unit for storage.
I. It is important to drain the unit when no in use for extended periods.
This will prevent sediments and mineral deposits from building up
inside the pump and causing damage.

Page: 15
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
4.0 BASIC FUNCTION AND OPERATION
4.1 HOW AN ADVANTAGE TROOPER WORKS
A. The reason that water leaks out from inside of anything is because
the pressure of the water has overcome the pressure of the air
holding it in. If you had a small hole on the hose for example, and
the pressure of the air pushing in on it was strong enough, it would
keep the water inside the hose. Since it is impossible to increase
the pressure of the atmosphere, an ADVANTAGE TROOPER
decreases the pressure of the water to the point where the air holds
the water in.
B. There are three factors involved in creating or controlling leaks:
incoming water pressure, atmospheric pressure and outgoing
pressure. The available draw or vacuum capability of the pump,
outgoing pressure, remains constant. Atmospheric pressure also
remains constant. Therefore, the control we have for stopping
leaks is the incoming pressure. The pressure regulator inside
the ADVANTAGE TROOPER is used to limit the incoming water
pressure to the leak.
C. When using an ADVANTAGE TROOPER, the water is pulled
through a mold to lower pressure. In all other circulating systems,
the water is pushed through, which increases pressure.
D. Regulating the flow to a mold does not necessarily reduce the
flow when using an ADVANTAGE TROOPER. Because the
ADVANTAGE TROOPER draws a vacuum on the ‘FROM MOLD’
line, the over all pressure drop remains the same or even increases.
This means that in many cases there is no loss of cooling flow and
in some cases it may even be improved.
E. The ADVANTAGE TROOPER unit uses a progressive cavity pump
because it can pump both water and any air that may be drawn in
from a leak. The air is then vented from the system before the water
leaves the unit.
Positive displacement pump

Page: 16
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
4.2 PRESSURE DROP ACROSS A MOLD
A. To prevent coolant from leaking out, the fluid pressure must be zero
PSI or less at the point of the leak. In the “incorrect hook-up” (see
figure), coolant enters the mold near the leak and the incoming
pressure must be adjusted close to zero PSI to prevent leakage into
the damaged area.
-12 PSIG
FROM MOLD
0 PSIG
TO MOLD
-9 PSIG
-3 PSIG
-6 PSIG
LEAK
INCORRECT HOOKUP
Pressure differential of only 12 PSI with no leak, minimum coolant flow.
B. The ADVANTAGE TROOPER in this example can pull a maximum
vacuum of about -12 PSI on the ‘FROM MOLD’ line. This
determines the overall pressure differential on only 12 PSI.
C. The coolant pressure must be zero only at the point of the leak.
Therefore, by having the coolant enter the mold at the point farthest
from the leak, much of the pressure drop can take place before
the leak. This means that a much higher incoming pressure can be
used. In the “correct hook-up” (see figure), the incoming pressure
is +36 psi, which drops as it flows through the mold, becoming zero
psi just before the leak. Since the ADVANTAGE TROOPER in this
example can still pull -12 PSI on the ‘FROM MOLD’ side, there is
now a total pressure differential of 48 PSI. Maximum coolant flow
with no leak. compare this to only 12 PSI in the “incorrect hook-up”
and you will see the importance of flow direction in relation to leak
position.

Page: 17
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
4.3 MOLD LEAK SIMULATION (DEMO & OPERATION CHECK)
A. Begin with the ‘POWER’ switch turned off and the regulator screw
back out.
B. Connect a jumper hose from the ‘TO MOLD’ port to the ‘FROM
MOLD’ port. (Clear hose is ideal for this purpose).
C. Connect ‘SUPPLY’ and ‘DRAIN’ ports as you would to run a mold.
D. Open the ‘DRAIN’ line first.
E. Then open the ‘SUPPLY’ line.
F. Turn the power on.
G. With a jumper hose between the ‘TO MOLD’ and ‘FROM MOLD’
ports, the suction of the pump may draw some fluid through the
regulator even through it is closed. Pinch the jumper hose closed.
The ‘FROM MOLD’ gauge should show a vacuum of more that 24
inches of mercury.
H. Be sure the regulator screw is backed out. If you wish, you may
now disconnect the jumper hose from the ‘TO MOLD’ port and only
a tiny amount of water will drip out. If you place your finger over the
open end of the jumper hose you will feel the suction of the pump.
+36 PSIG
TO MOLD
-12 PSIG
FROM MOLD
+24 PSIG
0 PSIG
+12 PSIG
LEAK
CORRECT HOOKUP
Pressure differential of 48 PSI with no leak, maximum coolant flow.

Page: 18
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
I. Reconnect your jumper hose.
J. To simulate a mold leak, cut about half way through the diameter of
the jumper hose. Notice that no water leaks from the hose.
K. Open the regulator (turn screw clockwise) until water begins to leak
from the cut in the jumper hose. The farther you open the regulator,
the more water will leak from the hose. Slowly close the regulator
(turn screw counter clock-wise) until the leak stops. The farther you
close the regulator, the more air will be drawn in. (If you are using
a clear jumper hose, you will be able to see the amount of air being
sucked in at the leak.)
L. When adjusting an ADVANTAGE TROOPER to a mold the
regulator should not be closed more than is necessary to stop the
leak. This procedure will maximize the pressure differential across
the mold and provide the maximum coolant flow in the mold.
M. CONCLUSION:
a. You have thoroughly checked the operation of the
ADVANTAGE TROOPER negative pressure unit.
Following and understanding the procedure outlined ‘how
an ADVANTAGE TROOPER works’ will help in the future
when dealing with negative pressure cooling.
b. Remember that a mold is much more complex than the
simple jumper hose used in the ‘Mold Leak Simulation’. Yet
in general, the same procedure should be followed.
c. RECAP: start with the regulator adjusting turned out, for
maximum vacuum, then turn it in (clockwise) until you
notice a leak, then back the screw out one-half turn more.
Each time you make an adjustment, pause for a few
seconds to allow the system come to equilibrium before
making another turn.
4.4 USING MOLD HEATERS WITH TROOPER UNITS
A. Temperatures higher than 180° will damage pump. See appendices:
“Parts failure - stator” and “Boiling Points of Water”.
B. Preventing boiling: water boils at 212°F (100°C) at sea level. The
term “sea level” means air pressure at seal level which is 14.7 PSI
(1 bar). At higher altitudes (lower pressure) water boils at lower
temperatures. The TROOPER unit is a negative pressure system,
in essence creating an artificial higher altitude. When using the
TROOPER as a leak stopper, the absolute pressure of the water
may be as low a 3 PSI, which will cause water to boil at slightly

Page: 19
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
above 180°F (82°C). For comparative temperatures and pressure,
see Appendix “Boiling points of water”.
C. For proper operation with a mold heater, it is essential to make all
connections as shown in this diagram.
D. Mold heaters are pressurized by their open supply line, the drain
remains closed except for cooling. Therefore, the incoming supply
pressure becomes the minimum pressure of the system. In this
situation, if the system pressure exceeds the back-pressure
pumping capabilities of the unit, then the supply pressure must be
reduced.
E. As shown in the diagram, the purpose of the external regulator on
the mold heater supply line is to control the total pressure in the
system. The flow control valve allows a constant relief of pressure
downstream of the regulator even when the mold heater does not
need cooling or the drain is shut off.
F. Start up procedure - mold heater with TROOPER
1. Set the TROOPER regulator to maximum vacuum (screw
backed out).
2. Adjust the mold heater regulator as high as possible without
over loading the TROOPER.
3. Fully open the flow control by-pass valve.
4. Open the supply and drain valves on the mold heater.
5. Open the ‘DRAIN’ line on the TROOPER. ALWAYS OPEN
THE‘DRAIN’LINEBEFORETHE‘SUPPLY’ONTHE
TROOPER.
6. Open the ‘SUPPLY’ line on the TROOPER.
7. Turn power on to TROOPER.
8. Turn power on to mold heater. If necessary, increase
pressure delivered by mold heater supply regulator until
there is sufficient pressure to start the mold heater.
9. Adjust the TROOPER regulator for minimum vacuum
required to stop the mold leak. Do not over adjust.
10. Slowly close the flow control by-pass for the minimum
amount that allows the TROOPER to run continuously.
Never leave the flow control completely closed.

Page: 20
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317-887-0729 Fax: [phone] Service Fax: [phone]
web site: www.AdvantageEngineering.com
Service Department email: [email protected]
TROOPER : Negative Pressure System
4.5 FIXING PROBLEM LEAKS (MULTIPLE AND CAVITY)
A. MULTIPLE LEAKS ON A SINGLE MOLD CIRCUIT
1. If there are two or more leaks on one moldcircuit and they
are grouped toward one end, they should be treated as a
single large leak.
2. However, if they are distributed almost evenly throughout
the circuit, then the flow cannot be maximized for flow
in one direction or another. See section 4.1 - How a
TROOPER works.
B. LEAKS INTO MOLD CAVITY
1. In a few cases, if the leak is directly into the cavity or core,
the draw of the part when the mold opens or upon ejection
CONNECTIONS FOR ADVANTAGE TROOPER UNIT
USED WITH MOLD HEATER
DO NOT RUN UNIT WITH WATER OVER 180°F
NOTES:
A. When supply pressure is greater than 45 PSI, use regulator valve,
as noted. It must be set so that coolant pressure, downstream of
regulator, is greater than system back pressure at the return line.
B. The purpose of the sight glass is to check for air in the return line. If
the leak is very large, the logic seal unit may not be able to expel all
the air. If this is the case an extra air vent should be placed at the
return port of the ADVANTAGE TROOPER as air returned to the
mold heater could cause pump cavitation and, possibly, damage the
heaters.