Thrush DSVE User Manual

Manual # OMAV2-SUMP1

(Vertical Model)

Semi-Instantaneous Water Heater

Steam to Water Design

Manual # 9636-0550 Rev. B

Operation&MaintenanceManual



340West8thStreet

Peru,IN46970

PH:765‐472‐3351

FX:765‐472‐3968

www.thrushco.com

COPYRIGHTTHRUSHCO.,INC.2014

Thrush Co.

Manual #9636-0550

Table of Contents

Section No.

Description Page No.
1
2
3
4
5
6
7

General Product Information

Safety Information/Warnings

Component and Operational Information

Installation, Initial Startup and Operation

Maintenance Information

Electrical Drawings

Parts Ordering/Contact Information

1

2-3

4-10
11-19
20-22
23-25

26

THIS DOCUMENT CONTAINS INFORMATION THAT THRUSH DEEMS CONFIDENTIAL AND PROPRIETARY.
THE BASIC THRUSH PRODUCT REVEALED IN THIS DOCUMENT IS PATENTED, AS ARE CERTAIN PRODUCT
COMPONENTS. IN CONSIDERATION FOR THE RECEIPT OF THIS DOCUMENT, RECIPIENT AGREES NOT TO
REPRODUCE, COPY, USE OR TRANSMIT THIS DOCUMENT OR THE INFORMATION CONTAINED HEREIN, IN
WHOLE OR IN PART, OR TO PERMIT OTHERS TO DO SO, FOR ANY PURPOSE WITHOUT FIRST OBTAINING
THE EXPRESS WRITTEN PERMISSION FROM THRUSH.

COPYRIGHT THRUSH CO., INC. 2014

Thrush Co.

Manual #9636-0550

1.1 Overview

The Thrush Hot-Pak
of trouble-free service. This manual provides information to allow the installer/operator to
install, operate, service and maintain the Hot-Pak. In this manual the installer/operator
will find that multiple Hot-Pak models are covered. Visually these different models will
look very similar. The main difference between models is the height and diameter of the
unit. The model number designates the size of the unit (Figure 1-1 Overview). Although a
standard configuration is shown throughout this manual, optional equipment is available.

Safety
Relief
Valve

Sensor Connection

Open Area of

Top B affle

Steam
Inlet

Section 1

General Product Information

® has been carefully assembled and factory tested to provide years

Water
Outlet

Shell
Top Baffle

Jacket

Insulati on

Tube Bundle

Water

Inlet

Model Designation
DSVE-642

No. of Tube Passes
Bundle Length (FT)
Bundle Diameter (IN)

Enhanced Surface Area (Optional)
Vertical Design

Condensate
Drain

Steam to Water
Double Wall Construction (Optional)

Figure 1-1 Overview

Manual #9636-0550

Section 2

Safety Information/Warnings

2.1 Safety Information

Practical safety features have been incorporated into the design and manufacture of the
Thrush
operation, and/or maintenance procedures are not clearly understood, contact your
Thrush representative before proceeding. Personnel qualified for use with steam
equipment must, at all times, observe all safety regulations while performing
maintenance or repairs.

All installation, operation, and maintenance procedures should be performed by
experienced, trained, personnel. The
temperature water under pressure as well as electricity. The potential exists for severe
personal injury or death if proper procedures are not followed.

Hot-Pak. If questions are not answered by this manual, or if specific installation,

Hot-Pak utilizes steam, boiler water, or high

Thrush Co.

Because this is an automatic valve, hot (potentially scalding) water could be

released without warning.

Water will be very hot, potentially scalding, causing serious bodily injury.

With any piece of equipment utilizing steam, boiler water, high temperature water

under pressure, and electricity, there is a potential for sever personal injury or

death if proper installation, operation and maintenance procedures are not

followed.

There is a potential for severe personal injury or death if proper rigging
procedures are not followed. Rigging should be done with proper
equipment and qualified personnel.

Thrush Co.

Manual #9636-0550

2.1 Safety Information continued

Before making any piping connections, assure that all piping is clean and free of

any foreign material such as debris or scale. Foreign material in the piping can
cause damage to the unit and/or affect the performance and operation. Manual

shutoff valves should be installed upstream/downstream from all connections to

act as an isolation device. These valves should be in the closed position and

remain so until the installation is complete.

Any temperature control valve installed on the Hot-Pak should be of the fail-closed

design.

When starting up, always introduce the cold fluid first. Introduce the hot side fluid

slowly. Bring the unit from ambient temperature up to operating temperature

gradually. Do not introduce hot or cold fluids suddenly, which could damage the

unit and void the warranty. A qualified electrician should make all electrical

connections.

To protect the tube bundle from damage, the unit must be filled with water before

allowing steam to enter.

When shutting down, always shut off the hot fluid first.

Thrush Co.

Manual #9636-0550

Section 3

Component and Operational Information

3.1 Component Identification

The following paragraphs contain functional descriptions for each of the major
components of a standard Thrush

Hot-Pak. This manual provides information for multiple

Hot-Pak models. All the components listed have the same functional purpose throughout

each model. Although a standard

Hot-Pak will be used for illustrations, optional

equipment will also be shown for reference.

SAFETY RELIEF

VALVE

SOLENOID

VALVE

TEMPERATURE

GAUGE

TEMPERATURE

AQUASTAT

CONTROL PANEL

(STANDARD)

CIRCULATOR

PUMP

VACUUM

BREAKER

PRESSURE

GAUGE ASSEMBLY

Figure 3-1 Components

Thrush Co.

Manual #9636-0550

3.1.1 Safety Relief Valve

The safety relief valve is a valve that automatically relieves pressure on the inside of the
shell (also known as the water side). If the temperature or pressure inside the shell
exceeds a specified setting, the valve will open. Field installation is required for the
safety relief valve and also requires an adequate drain be piped to the discharge side of
the valve. (Figure 3-2)

Because this is an automatic valve, hot (potentially scalding) water could be

released without warning.

Figure 3-2 Safety Relief Valve

3.1.2 Temperature Gauge

The temperature gauge is a visual representation of the temperature inside the shell
(or water side). It can be used as a reference when setting the temperature aquastat.
(Figure 3-3)

Figure 3-3 Temperature Gauge

Manual #9636-0550

3.1.3 Temperature Aquastat

The temperature aquastat limits the temperature of water inside the shell. The aquastat
must be set 15 degrees higher than the maximum operating temperature. If the water
temperature exceeds this limit, the aquastat sends a signal to the solenoid valve to dump
the overheated water. (Figure 3-4)

Figure 3-4 Temperature Aquastat

3.1.4 Solenoid Valve

The solenoid valve is an electrically actuated valve that dumps overheated water. The
solenoid valve must be piped to an adequate drain. If water inside the shell exceeds a
predetermined set point on the temperature aquastat, the aquastat sends a signal to this
valve telling it to open. The valve will then discharge the overheated water to a drain.
(Figure 3-5)

Thrush Co.

Water will be very hot, potentially scalding, causing serious bodily injury.

Figure 3-5 Solenoid Valve

Thrush Co.

Manual #9636-0550

3.1.5 Circulator Pump

The circulator pump circulates heated water from the top of the shell into the water inlet. This
action helps to maintain a constant temperature of water inside the shell. The circulator pump
must be on at all times to ensure proper operation and prevent damage to the unit. (Figure 3-6)

Figure 3-6 Circulator Pump

3.1.6 Vacuum Breaker

The vacuum breaker prevents a vacuum from forming in the steam side of the unit. As
steam cools it condenses, resulting in a reduction of pressure. If the pressure continues
to reduce, a vacuum begins to form. At this point, the vacuum breaker will engage and
allow atmospheric air to enter the unit thus equalizing pressure. (Figure 3-7)

Figure 3-7 Vacuum Breaker

Thrush Co.

Manual #9636-0550

3.1.7 Pressure Gauge Assembly

The pressure gauge is a visual representation of pressure level in the steam side of the
unit. A gauge cock and pigtail siphon is included. (Figure 3-8)

Figure 3-8 Pressure Gauge Assembly

3.1.8 Control Panel (Standard)

The standard Hot-Pak control panel is an electrical connection panel only. The circuit
breaker (located on the center of the panel) only shuts down the circulator pump. Wiring
and 120 Volt power to the panel should come from a properly sized breaker or fused
disconnect. Local and state codes apply. (Figure 3-9)

SYSTEMONCIRCULATOR PUMPONHIGH TEMP

ON

OFF

ALARM

Figure 3-9 Control Panel (Standard)

Thrush Co.

Manual #9636-0550

3.2 Optional Equipment

Although the standard Hot-Pak was designed to meet customer requirements, the need
for optional equipment may apply. Thrush can provide many various options to ensure
that our

Hot-Pak meets your needs. Listed below, but not limited to, are some of the

common requests for optional equipment. For more detailed lists and descriptions,
please contact your representative.

3.2.1 Control Panel (Electronic)

The electronic control panel includes everything in our standard panel with the addition
of a Factory Reset/AutoTune key switch and a Watlow Digital PID Controller. Autotune
Mode allows the user to easily set the Watlow Digital PID Controller to operate
compatible control valves. Factory Reset mode resets the digital PID controller to the
original factory settings. (Figure 3-10)

SYSTEM

ON

FACTORY

AUTOTUNE

RESET

MODE

Thrush

CIRCULATOR PUMP

ON

HIGH TEMP

ALARM

®

Figure 3-10 Control Panel (Electronic)

Manual #9636-0550

3.2.2 Temperature Control Valves

A temperature control valve is required for the Hot-Pak to operate. These valves regulate
the amount of steam that enters the unit. Various temperature control valves can be
used with the
offers a variety of temperature control valves to meet system requirements. (Figure 3-11)

Hot-Pak such as pneumatic, self-contained or electrically operated. Thrush

Thrush Co.

Figure 3-11 Temperature Control Valve

Thrush Co.

Manual #9636-0550

4.1 Pre-Installation Assembly

The following procedures are to aid the operator in installing, operating and maintaining
the Thrush

Hot-Pak. All procedures are to be performed by experienced, trained, and

certified personnel only.

With any piece of equipment utilizing steam, boiler water, high temperature water

under pressure, and electricity, there is a potential for sever personal injury or

death if proper installation, operation and maintenance procedures are not

1. The Hot-Pak is shipped in multiple containers. A large crate houses the Hot-Pak
itself and the safety relief valve. Smaller containers house the components of the
stand and any other optional equipment. For easier installation, Thrush
recommends that the installer place the crated
operation before unpacking the unit. The unit should be located on a level surface
capable of supporting the total weight of the unit when filled to capacity.

2. After the unit has been set in place, it should be inspected to ensure that all parts
are present and in good condition. If any parts are missing or damaged, please
contact your representative.

3. Once the unit has been inspected, assemble the Hot-Pak stand as shown in
Figure 4-1. For models with a 6” or 10” diameter bundle, use the inner most set of
holes. For models with an 8” or 12” diameter bundle, use the second set of holes.

Section 4

Installation, Initial Start-Up and Operation

followed.

Hot-Pak in the intended area of

(4)LEG

(1)BASE

(4)BOLT,5/8‐11X1.5"

Figure 4-1 Stand Assembly #1

Manual #9636-0550

4.1 Pre-Installation Assembly (Continued)

4. Unbolt shipping bracket (Figure 4-2) from base of crate. Use provided lift lugs to
slowly lift the unit from the crate. Once cleared from the crate continue to raise the

Hot-Pak to a vertical position. While lowering unit onto legs (Figure 4-3) align

mounting tabs on the
supplied bolts to attach the

Hot-Pak with mounting holes on the stand assembly. Use

Hot-Pak to the stand. Remove shipping bracket and lift

lugs.

There is a potential for severe personal injury or death if proper rigging

procedures are not followed. Rigging should be done with proper

equipment and qualified personnel.

LIFTLUG

MOUNTING

TABS(4)

Thrush Co.

5. Once the
(Figure 4-3).

LIFTLUG

SHIPPING
BRACKET

Figure 4-2 Crated Assembly

Hot-Pak is attached to the stand, the unit can be bolted to the floor.

(4)BOLT,5/8‐11,1.5"

FLOOR

MOUNTINGHOLES

Figure 4-3 Stand Assembly #2

Thrush Co.

Manual #9636-0550

4.1 Pre-Installation Assembly (Continued)

6. With the
in the upper left side of the shell (Figure 4-4). This valve should be piped to an
adequate drain.

7. Now that the
network. A visual check of components is recommended before installation.

4.2 Installation

Using Figure 4-4 below, follow the steps outlined to install piping for the Hot-Pak.

Before making any piping connections, assure that all piping is clean and free of

any foreign material such as debris or scale. Foreign material in the piping can
cause damage to the unit and/or affect the performance and operation. Manual

shutoff valves should be installed upstream/downstream from all connections to

act as an isolation device. These valves should be in the closed position and

Hot-Pak assembled, attach the safety relief valve to the open connection

Hot-Pak is assembled, the unit can be installed in the piping

remain so until the installation is complete.

Figure 4-4 Piping Installation

Thrush Co.

Manual #9636-0550

4.2 Installation (Continued)

1. Connect the cold water source to the water side connection port. Be sure the
upstream manual shutoff valve is in the closed position. If an in-line check valve
or back flow preventer is used, a suitable expansion tank must be installed in the
hot water outlet side of the unit. (Figure 4-4)

2. Connect the hot water outlet piping to the hot water outlet port located in the top of

Hot-Pak. Be sure the downstream manual shutoff valve is in the closed

the
position. (Figure 4-4)

3. Connect the steam piping to the steam inlet port (Figure 4-4).

Any temperature control valve installed on the Hot-Pak should be of the

fail-closed design.

The temperature control valve should be installed per the valve manufacturer’s
instructions. A 1 ¼” NPT connection for the temperature sensing element is
located beneath the relief valve connection.

A safety solenoid should be installed on the temperature control valve pilot or
pneumatic control and connected to the control panel. Terminal connections for a
safety solenoid are provided on the terminal strip of the control panel. For a direct
acting temperature control valve, a normally closed solenoid valve is usually
used. For a pneumatic type control valve, a three-way solenoid is usually used.

A strainer and drip leg should be installed on the inlet side of the temperature
control valve. The strainer should be oriented such that condensate cannot
puddle in the body.

4. Connect a properly sized steam trap to the condensate drain of the Hot-Pak. The
trap should be installed with an isolation valve for maintenance purposes. A
strainer and a dirt leg should also be installed on its inlet side. Float and
thermostatic steam trap assemblies can be ordered from Thrush. A float and
thermostatic type steam trap is recommended for a modulating type of service for
use as a water heater. If the condensate is under pressure or sufficient height is
not available to allow condensate drainage, a pumping trap or another form of
condensate removal may be required.

5. Once all connections outlined above have been performed, the unit is ready for
the initial startup procedure.

4.2.1 Water Quality

Thrush recommends a water test to ensure adequate water hardness levels between
17 ppm and 103 ppm (1 grain and 6 grains per gallon). Do not use deionized water.
Damage to the

Hot-Pak caused by water quality is not covered by warranty.

Thrush Co.

Manual #9636-0550

4.3 Initial Startup Procedure

Before starting the Hot-Pak, all equipment should be inspected for proper installation.
Any equipment that appears to be damaged or any installation errors should be
corrected before any water, steam or electricity is supplied.

When starting up, always introduce the cold fluid first. Introduce the hot side fluid

slowly. Bring the unit from ambient temperature up to operating temperature

gradually. Do not introduce hot or cold fluids suddenly, which could damage the

unit and void the warranty. A qualified electrician should make all electrical

Initial startup procedures are as follows:

1. Assure that all manual shutoff valves on the water and heat sources are closed.

Verify that electricity is off as well.

2. Slowly open the manual shutoff valve or valves on the cold water side of the Hot­Pak and check for any leaks. Repair any leaks before proceeding. Allow the tank

to fill completely with water. Opening the safety relief valve to vent the air out of
the shell will speed up this process.

3. Open the circulator pump isolation valves. (Figure 4-5)

connections.

Circulator Pump

Isolation Valves

A-A

A-A

Figure 4-5 Circulator Pump Isolation Valves

4.3 Initial Startup Procedure (Continued)

4. Turn on the electrical power and place the control panel in the ON position.

5. Open all isolation valves in the condensate line, downstream from the hot water

outlet and then slowly open the steam supply valves.

6. Slowly open the steam supply and create a load or demand situation on the Hot­Pak of approximately half of the system design and check for any leaks.

7. Using the valve manufacturer’s instructions set the temperature control valve to

produce the desired water temperature. If using an electronic control panel, insert
the provided key into the key switch located on the front of the control panel
labeled FACTORY RESET/AUTOTUNE MODE. Turn the key to the right to
engage Autotune Mode. This feature will automatically set the digital controller
settings to operate the electrically actuated valve. This process may take a few
minutes. Then use the Up/Down arrows on the digital controller to adjust the
temperature set points.

8. As the water temperature rises, check the accuracy of the temperature control

valve and make any adjustments using valve manufacturer’s instructions.

9. Once the temperature control valve has been properly adjusted, the simulated

demand can be shut down.

10. Lower the temperature setting of the aquastat to a temperature lower than the

desired water temperature. The aquastat should open the water side safety
solenoid and water should dump to a drain. The steam pressure should shut off,
and the High Temp Alarm light should illuminate. If the steam pressure does not
shut off, the safety system should be fixed before proceeding.

11. Once the aquastat has been tested, set it to the maximum water temperature

desired. This should be about 15 degrees above the control valve setting.

12. Check the stud bolts on the head and shell of the Hot-Pak to ensure proper bolt

torque requirements. Refer to Section 5 for sequence and torque settings.

Once all startup procedures have been finished, set points have been properly adjusted,
and the stud bolts have been checked, the

4.4 Factory Reset

The electronic control panel has a feature that allows the user to reset the digital
controller setting to Thrush factory defaults. This feature can be used in the event a
temperature control valve is changed or replaced on the unit, or if settings within the
digital controller get modified. To engage the Factory Reset feature simply insert the
provided key into the key switch labeled Factory Reset/Autotune Mode and turn the key
to the left. The unit will now be back to default factory settings.

Hot-Pak can be placed into normal operation.

Manual #9636-0550

Thrush Co.

Thrush Co.

Manual #9636-0550

4.5 Operation

The Thrush
shell and tube heat exchanger and industry standard controls to provide a constant
source of hot water for an open system. Figures 4-6, 4-7 and 4-8 show the
various stages of the operation sequence. A standard
configuration may vary.

To protect the tube bundle from damage, the unit must be filled with water before

With the unit full of water, and control panel set to the “ON” position, it will begin to
circulate the water inside the shell. Tubes and baffles are omitted for clarity. (Figure 4-6)

HOT-PAK is an indirect fired semi-instantaneous water heater. It utilizes a

Hot-Pak in

Hot-Pak is shown, actual

allowing steam to enter.

Figure 4-6 Operating Sequence (Circulated Water Flow)

Manual #9636-0550

4.5 Operation (Continued)

With the temperature setting on the control valve set to the specified value, the control
valve will allow steam to enter the tube bundle. (Figure 4-7). As steam flows through the
tube bundle, the temperature of the steam will drop causing it to condense. The steam
condensate will exit through the head of the unit to a properly sized steam trap. The
steam trap should be piped to an adequate drain. For proper operation, the steam
condensate must be removed.

Thrush Co.

Figure 4-7 Operating Sequence (Steam Flow)

Thrush Co.

Manual #9636-0550

4.5 Operation (Continued)

The circulated water inside the shell is forced to flow across the hot tubes, transferring
heat to the water (Figure 4-8). This will continue until the desired temperature is reached.
Once the desired temperature is reached, the control valve will close. To maintain the
temperature inside the shell and pre-heat incoming water, the circulator pump continues
to cycle. When there is a demand for heated water, the heated water will exit the hot
water outlet. As hot water exits the unit, cold water will enter. This will cause the
temperature of water in the shell to fall and trigger the temperature control valve to open
again, thus heating the water to the desired temperature again. This cycle will repeat as
needed to keep up with demand.

Hot Water O ut

Cold Water In

(Shell Side)

Figure 4-8 Operating Sequence (Hot Water Out)

Manual #9636-0550

Section 5

Shutdown and Maintenance Procedures

5.1 Shutdown Procedure

The following sequence outlines the proper procedure for shutting down a Thrush

Hot-Pak.

When shutting down, always shut off the hot fluid first.

1. Close off valves in the steam supply line.

2. Turn the control panel on/off switch to the off position and shut-off all electrical
power.

3. Relieve all pressure from the steam or heating medium supply.

4. Close off all remaining valves in the following order:

a. Hot water outlet line.
b. Cold water inlet line.
c. Condensate return line.

5. Drain the water from the shell side of the Hot-Pak. Opening the pressure relief
valve to vent the air into the shell will speed up this process.

6. After completing the required maintenance or repairs, return the Hot-Pak to

Thrush Co.

5.2 Maintenance

normal operation by following the initial startup procedure.

The information in this section details the proper maintenance procedures for the
components of the

Hot-Pak. Because this manual serves multiple models of Hot-Paks,

the information may be general in some instances. If there are any questions concerning
maintenance procedures that are not clearly explained in this manual, contact your local
representative.

Maintenance procedures may require the unit to be taken off-line before the procedure is
performed. It is recommended that personnel performing these procedures review the
startup and shutdown procedures, detailed in this manual, before attempting any
maintenance procedures. The shell should be drained or blown down periodically to flush
out any sediment. This should be done through the drain connection on the unit. A drain
valve may be installed on the drain connection to facilitate this process. (Figure 4-3)

Thrush recommends regular cleaning of the heat exchanger tube bundles. The bundles
should be removed periodically and any scale or deposits should be cleaned from the
tube bundle surface. Frequency of cleaning is dependent upon water quality and is the
responsibility of the owner. Be sure to take care when cleaning the tubes. If the tubes
become punctured, steam can enter the process water and cause personal injury or
damage to the unit. When re-installing the tube bundle, position the bundle so that the
open area across from the top baffle is located on the same side as the sensor
connection. (Figure 1-2)

Thrush Co.

Manual #9636-0550

5.2 Maintenance (Continued)

Thrush Co. offers an optional Double Wall configuration for leak detection. This option
utilizes tubes with an additional tube inside each of them. If the outer tube becomes
punctured for any reason, the inner tube maintains the separation of steam and process
water. The space between the inner and outer tubes will then start to fill with water and
leak out of the Leak Detection Grooves at the bottom of the unit (Figure 5-1). If water is
detected in this area, the tube bundle must be replaced. Contact your representative for
replacement tube bundles.

LEAK DETECTION GROOVES

Figure 5-1 Leak Detection

Please note that new gaskets are required for startup each time the unit is disassembled.
Never try to re-use old gaskets.

Thrush Co.

Manual #9636-0550

5.2 Maintenance (Continued)

Gasket Creep is inherent to most gasket joints, and retorquing is required. The greater
the operating temperature, and pressure, the greater the problem can become. It is
imperative that the head bolts be torqued after installation, after initial startup, and
inspected seasonally to be sure the bolts are torqued correctly. The bolts should be
torqued incrementally to 30%, 60% and then to 100% of the appropriate value shown in
Figure 5-2. They should be torqued in the sequential order of the appropriate pattern
shown. Bolt holes in the tubesheet are threaded; therefore, the nuts on both the top and
bottom of the flange must be torqued.

Hot-Pak

Diameter

Bolt

Size

Number of Bolts

Torque Ft/Lb

(150# Flgs.)

6” .75 8 50

8” .75 8 50
10” .87 12 80
12” .87 12 80

Hot-Pak

Diameter

6” .75 12 100

8” .87 12 160
10” 1.00 16 245
12” 1.12 16 390

Bolt

Size

Number of Bolts

Torque Ft/Lb

(300# Flgs.)

1

1

8

4

6

5

12

3

8

4

7

10

2

1

6

5

9

3

7

11

2

12 Bolt8 Bolt 16 Bolt

12

4

14

6

16

89

5

13

3

11

10

2

7

15

Figure 5-2 Bolt Torque Requirements

Thrush Co.

Manual #9636-0550

6.1 Electrical Drawings

The following electrical drawings are for reference only. Each unit is shipped with a set of
electrical drawings specific to that model.

Section 6

Electrical Drawings

TERMINAL STRIP

F

F

U

U

1

2

INCOMING

POWER

66

5

215NNNN NL1

7

AQUASTAT

USED ONLY WHEN

THRUSH SUPPLIES THE

STEAM CONTROL VALVE

RARELY USED, CONSULT

WIRING SCHEMATIC FOR

SPECIFIC CONTROLLER

OPENS RED TO
BLUE ON INCREASE

Figure 6-1 Electrical Drawing (Terminal Strip Standard Panel)

CIRCULATOR

RED-COMMON
BLUE-OPENS HIGH
YELLOW-OPENS LOW

(WATER) SOLENOID

STEAM VALVE SOLENOID

TEMPERATURE / PROCESS

CONTROLLER (IF REQUIRED)

AQUASTAT

SHELL/TANK

(IF REQUIRED)

1

2

3

OR

G

OR

G

6.1 Electrical Drawings (Continued)

CONTROL LOGIC

NOTE:
SOLID LINE REPRESENTS FACTORY WIRING
DASHED LINE REPRESENTS FIELD REQUIRED WIRING

INCOMING

L1

OFF

DS

ON

120V / 1PH / 60Hz

POWER SUPPLY

SWITCH TURNS OFF

CIRCULATOR ONLY !

Thrush Co.

Manual #9636-0550

G

N

L1

1

2

FU2

2.8A

FU1

2.8A

AQUA-

STAT

7

120V / 1PH / 60Hz

TO CIRCULATOR

GREEN

PL2

WHITE

2

PL1

RED

5

PL3

55

6 6

120V / 1PH / 60Hz

TO PROCESS CONTROLLER

(IF REQUIRED)

NG

PUMP ON

POWER ON

OVER
TEMPERATURE

SOLENOID (1" N/C)

N

FOR SHELL/TANK

SOLENOID (

N

FOR STEAM VALVE

NG

1

4

" N/C)

Figure 6-2 Electrical Drawing (Control Logic Standard Panel)

Thrush Co.

Manual #9636-0550

6.1 Electrical Drawings (Continued)

NOTE

Figure 6-3 Electrical Drawing (Electronic Panel Schematic)

Manual #9636-0550

Thrush Co.

Section 7

Parts Ordering/Contact Information

7.1 Contact Information

Any additional information not supplied in this manual can be given by your
representative.

If your representative cannot be reached, please contact our customer service
department:

Thrush Co., Inc.
PO Box 228

th

340 West 8

Street
Peru, IN 46970
Attention: Customer Service Group

Phone: [phone]

[phone]
Fax: [phone]
E-mail: [e-mail]

When calling or writing to place a parts order to your representative, it is recommended
to have the following items for reference:

1. Part number(s).

2. Description of product(s).

3. Quantity required.

4. National Board Number.