SPX FLOW Votator II User manual

FPO
INSTRUCTION MANUAL
Votator® II
SCRAPED SURFACE HEAT EXCHANGER
FORM NO.: 95-03057 REVISION: 06/2023 READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT.

Information contained in this manual is subject to change
without notice and does not represent a commitment on the
part of SPX FLOW, Inc. No part of this manual may be
reproduced or transmitted in any form or by any means,
electronic or mechanical, including photocopying and
recording, for any purpose, without the express written per-
mission of SPX FLOW, Inc.
Copyright © 2019 SPX FLOW, Inc.
All Rights Reserved.
Revision Date: 06/2023
Publication: 95-03057
SPX FLOW, Inc.
611 Sugar Creek Road
Delavan, WI 53115 USA
Tel: [phone] or [phone]
Fax: [phone] or [phone]
E-mail: [email protected]
Web site: www.spxflow.com

Votator® II Scraped Surface Heat Exchanger Table of Contents
95-03057, 06/2023 Waukesha Cherry-Burrell®Page 3
Warranty ..................................................................................................................................... 6
Shipping Damage or Loss ..............................................................................................................6
Warranty Claim ...............................................................................................................................6
Safety .......................................................................................................................................... 7
Care of Component Materials ................................................................................................... 8
Stainless Steel Corrosion ...............................................................................................................8
Elastomer Seal Replacement Following Passivation .....................................................................8
Introduction ................................................................................................................................ 9
Models and Specifications ..............................................................................................................9
Cylinder Assembly ..........................................................................................................................9
Product Side and Jacket Pressure Ratings ....................................................................................9
Machine Serial Number ..................................................................................................................9
Votator II Media Configurations ....................................................................................................10
Special Considerations for Vertical Votator II ...............................................................................10
................................................................................................................................ Installation 11
Site Selection Considerations .......................................................................................................11
Foundation & Drainage ....................................................................................................11
Clearances ...................................................................................................................................11
Leveling the Unit ...........................................................................................................................11
Electrical Power Connections .......................................................................................................11
Mutator Rotation Check ................................................................................................................12
Mechanical Seals ........................................................................................................................12
Single Mechanical Seal ...................................................................................................12
Double Mechanical Seal ..................................................................................................12
2005 Mechanical Seal Design .........................................................................................13
2012 Mechanical Seal Design .........................................................................................13
Flush Fluid Requirements ................................................................................................14
Piping ............................................................................................................................................14
Guidelines for Piping .......................................................................................................14
Suggested Media Piping for Steam ..............................................................................................14
Suggested Media Piping for Water or Liquid ................................................................................15
Refrigeration Piping Installation ....................................................................................................16
Liquid Line Installation .....................................................................................................16
Suction Line Installation ...................................................................................................16
Hot Gas Line (if required) ................................................................................................16
Pressure Relief Line ........................................................................................................16
Refrigeration Valves .....................................................................................................................17
Liquid Feed Solenoid Valve .............................................................................................17
Dual Pressure Regulating Valve ......................................................................................17
Sporlan Level Master Control (LMC) or Level Switch ......................................................17
Refrigerant Return Valve .................................................................................................17
Flow Control Valves .........................................................................................................18
Hot Gas Pressure Regulating Valve ................................................................................18
Pressure Relief Valve ......................................................................................................18
Suggested Media Piping for Liquid Over Feed Refrigeration .......................................................19
Suggested Media Piping for Gravity Refrigeration .......................................................................20
Electrical Equipment .....................................................................................................................22
Refrigeration Wiring Schematics ..................................................................................................23
Freeze Protection Components .......................................................................................23
Gravity Refrigeration with Level Master Control (LMC) ...................................................24
Gravity Refrigeration with Level Switch ...........................................................................25
Liquid Overfeed Refrigeration System .............................................................................26
Media System Check ....................................................................................................................27
Special Considerations for Vertical Votator II ...............................................................................27
Minimum Height - Vertical Votator II ................................................................................27
Working Access – Vertical Votator II ...............................................................................27
Mounting Pole - Vertical Votator II ...................................................................................27

Table of Contents Votator® II Scraped Surface Heat Exchanger
Page 4 Waukesha Cherry-Burrell®95-03057, 06/2023
Mounting Scrape Cylinders - Vertical Votator II .............................................................. 28
Hydraulic System - Vertical Votator II ............................................................................. 28
Gravity Refrigeration System - Vertical Votator II ........................................................... 30
Typical Dimensional Data and Hydraulic Lift System 31
Votator II General Assembly ........................................................................................... 31
Horizontal Refrigeration Assembly .................................................................................. 32
Vertical Refrigeration System .......................................................................................... 33
Horizontal Frame Options ............................................................................................... 34
Vertical Mounting Suggestions ........................................................................................ 35
Vertical Cylinder Mounting .............................................................................................. 36
Vertical Mounting Pole/Hydraulics .................................................................................. 37
Vertical Hydraulic Schematic .......................................................................................... 38
Operation .................................................................................................................................. 39
Pre-Startup Check ........................................................................................................................ 39
For Refrigeration Units Only ............................................................................................ 39
Pre-production Run Setup ............................................................................................................ 39
Startup Procedure ........................................................................................................................ 40
Heating/Liquid Cooling Applications ................................................................................ 40
Refrigeration Applications - Pumped and Gravity Systems ............................................ 40
Shutdown Procedure .................................................................................................................... 41
Preventing Tube Scoring .............................................................................................................. 41
Maintenance ............................................................................................................................. 42
Routine Maintenance - Horizontal Votator II ................................................................................ 42
Routine Maintenance - Vertical Votator II .................................................................................... 43
Scheduled Maintenance ............................................................................................................... 49
Preventive Maintenance ............................................................................................................... 49
Mutator Shaft Bearing .................................................................................................................. 50
Extra Heavy Duty Votator II Shaft Bearing ...................................................................... 50
Shafts ........................................................................................................................................... 50
Gear Drive .................................................................................................................................... 50
Blades .......................................................................................................................................... 51
Mechanical Seals ......................................................................................................................... 51
Tubes ........................................................................................................................................... 51
Care of Heat Exchanger Tube ..................................................................................................... 51
Product Side ................................................................................................................................. 52
Inspection of Chrome Plated Nickel or Stainless Steel Tubes ..................................................... 53
Inspection of Stainless Steel Tubes ............................................................................................. 53
Jacket Side ................................................................................................................................... 53
For Units Using Steam, Water, Or Liquid ........................................................................ 53
For Units Using Refrigerant ............................................................................................. 53
Cleaning the Flanges ................................................................................................................... 53
Leak Testing ................................................................................................................................. 54
Scraper Blade Maintenance ......................................................................................................... 54
Blade Inspection .............................................................................................................. 54
Scraper Blade Removal & Replacement ......................................................................... 54
Scraper Blade Wear ........................................................................................................ 54
Blade Sharpening ............................................................................................................ 54
Maintenance of Horizontal Votator II ............................................................................................ 55
Shaft Removal - Horizontal Unit ...................................................................................... 55
Shaft Installation - Horizontal Unit ................................................................................... 56
Heat Exchanger Tube Removal - Horizontal Unit ........................................................... 58
Heat Exchanger Tube Installation - Horizontal Unit ........................................................ 59
Maintenance of Vertical Votator II ................................................................................................ 60
Shaft Removal - Vertical Unit .......................................................................................... 60
Shaft Installation - Vertical Unit ....................................................................................... 61
Heat Exchanger Tube Removal -Vertical Unit ................................................................ 62
Mechanical Seal Maintenance ..................................................................................................... 64
Single Mechanical Seal ................................................................................................................ 64

Votator® II Scraped Surface Heat Exchanger Table of Contents
95-03057, 06/2023 Waukesha Cherry-Burrell®Page 5
Seal Head Insert Removal and Installation .....................................................................64
Seal Body Insert (Rotating Seal Face) Used Before 2012 ..............................................64
Single Mechanical Seal Installation .................................................................................65
One-Piece Single and
Double Mechanical Seals 66
Primary/Secondary Seal Head Insert Removal and Installation ......................................66
2012 Primary/Secondary Seal Head Insert Removal and Installation .............................66
One-Piece Primary Seal Body (Rotating Seal Face) .......................................................67
Removable Seal Body Insert (Rotating Seal Face) .........................................................67
Assembly of Removable Primary Seal Body ...................................................................67
Assembly of 2012 Primary Seal Body .............................................................................68
Seal Assembly Installation on Shaft ................................................................................68
Servicing Mechanical Seals - Vertical Votator II ..............................................................70
Parts Lists ................................................................................................................................. 72
Latch .............................................................................................................................................72
Product Heads ..............................................................................................................................72
Votator II Blades ...........................................................................................................................73
Labels ...........................................................................................................................................73
Cylinder Assembly ........................................................................................................................74
Cylinder Assembly - Shaft ............................................................................................................76
Cylinder Assembly - Removable Tube 77
2012 Single and Double Mechanical Seal ....................................................................................79
One-Piece Single & Double Mechanical Seal, 2005-2012 ...........................................................81
Two-Piece Single & Double Mechanical Seal, 2000-2004 ...........................................................83
Two-Piece Single Mechanical Seal (with flushing lip seal), 1997-2004 ........................................85
Two-Piece Single Mechanical Seal
(Retrofit of the One-Piece Design - 2005) .......................................................................87
Two-Piece Double Mechanical Seal
(Retrofit of the One-Piece Design - 2005) .......................................................................89
Vertical Refrigeration Piping .........................................................................................................90
Vertical Frame/Hydraulics ............................................................................................................92
Shaft Heater (Optional) .................................................................................................................94
Troubleshooting ....................................................................................................................... 95
Unthawing A Frozen System ........................................................................................................98
Water and Air in Refrigeration System .........................................................................................98

Warranty Votator® II Scraped Surface Heat Exchanger
Page 6 Waukesha Cherry-Burrell®95-03057, 06/2023
Warranty
LIMITED WARRANTY: Unless otherwise mutually agreed to in writing, (a) SPX FLOW US, LLC (SPX FLOW)
goods, auxiliaries and parts thereof are warranted to the Buyer against defective workmanship and material for
a period of twelve (12) months from date of installation or eighteen (18) months from date of delivery, which-
ever expires first, and (b) SPX FLOW services are warranted to Buyer to have been performed in a workman-
like manner for a period of ninety (90) days from the date of performance. If the goods or services do not
conform to the warranty stated above, then as Buyer’s sole remedy, SPX FLOW shall, at SPX FLOW’s option,
either repair or replace the defective goods or re-perform defective services. If Buyer makes a warranty claim
to SPX FLOW and no actual defect is subsequently found, Buyer shall reimburse SPX FLOW for all reason-
able costs which SPX FLOW incurs in connection with the alleged defect. Third party goods furnished by SPX
FLOW will be repaired or replaced as Buyer’s sole remedy, but only to the extent provided in and honored by
the original manufacturer’s warranty. Unless otherwise agreed to in writing, SPX FLOW shall not be liable for
breach of warranty or otherwise in any manner whatsoever for: (i) normal wear and tear; (ii) corrosion, abrasion
or erosion; (iii) any good or services which, following delivery or performance by SPX FLOW, has been sub-
jected to accident, abuse, misapplication, improper repair, alteration (including modifications or repairs by
Buyer, the end customer or third parties other than SPX FLOW), improper installation or maintenance, neglect,
or excessive operating conditions; (iv) defects resulting from Buyer’s specifications or designs or those of
Buyer’s contractors or subcontractors other than SPX FLOW; or (v) defects resulting from the manufacture,
distribution, promotion or sale of Buyer’s products; (vi) damage resulting from the combination, operation or
use with equipment, products, hardware, software, firmware, systems or data not provided by SPX FLOW, if
such damage or harm would have been avoided in the absence of such combination, operation or use; or (vii)
Buyer’s use of the goods in any manner inconsistent with SPX FLOW’s written materials regarding the use of
such product. In addition, the foregoing warranty shall not include any labor, dismantling, re-installation, trans-
portation or access costs, or other expense associated with the repair or replacement of SPX FLOW goods.
THE WARRANTIES CONTAINED HEREIN ARE THE SOLE AND EXCLUSIVE WARRANTIES AVAILABLE
TO BUYER AND SPX FLOW HEREBY DISCLAIMS ANY OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, ANY PERFORMANCE OR PROCESS OUTCOME DESIRED BY THE
BUYER AND NOT SPECIFICALLY AGREED TO BY SPX FLOW. THE FOREGOING REPAIR, REPLACE-
MENT AND REPERFORMANCE OBLIGATIONS STATE SPX FLOW’S ENTIRE AND EXCLUSIVE LIABILITY
AND BUYER’S EXCLUSIVE REMEDY FOR ANY CLAIM IN CONNECTION WITH THE SALE AND FURNISH-
ING OF SERVICES, GOODS OR PARTS, THEIR DESIGN, SUITABILITY FOR USE, INSTALLATION OR
OPERATIONS.
Shipping Damage or Loss
If equipment is damaged or lost in transit, file a claim at once with the delivering carrier. The carrier has a
signed Bill of Lading acknowledging that the shipment has been received from SPX FLOW in good condition.
SPX FLOW is not responsible for the collection of claims or replacement of materials due to transit shortage or
damages.
Warranty Claim
Warranty claims must have a Returned Material Authorization (RMA) from the Seller or returns will not be
accepted. Contact 800-252-5200 or 262-728-1900.
Claims for shortages or other errors must be made in writing to Seller within ten (10) days after delivery. This
does not include transit shortage or damages. Failure to give such notice shall constitute acceptance and
waiver of all such claims by Buyer.

Votator® II Scraped Surface Heat Exchanger Safety
95-03057, 06/2023 Waukesha Cherry-Burrell®Page 7
Safety
READ AND UNDERSTAND THIS MANUAL PRIOR TO INSTALLING, OPERATING, OR
SERVICING THIS EQUIPMENT
SPX FLOW recommends users of our equipment and designs follow the latest Industrial Safety Standards. At
a minimum, these should include the industrial safety requirements established by:
1. Occupational Safety and Health Administration (OSHA)
2. National Fire Protection Association (NFPA)
3. National Electrical Code (NEC)
4. American National Standards Institute (ANSI)
WARNING
Severe injury or death can result from electrical shock, burn, or unintended actuation of equipment.
Recommended practice is to disconnect and lockout industrial equipment from power sources, and release
stored energy, if present. Refer to the National Fire Protection Association Standard No. NFPA70E, Part II and
(as applicable) OSHA rules for Control of Hazardous Energy Sources (Lockout-Tagout) and OSHA Electrical
Safety Related Work Practices, including procedural requirements for:
• Lockout-tagout
• Personnel qualifications and training requirements
• When it is not feasible to de-energize and lockout-tagout electrical circuits and equipment before working
on or near exposed circuit parts
Before putting SPXFLOW equipment into operation, the operator shall analyze the application for all foresee-
able risks, their likelihood to occur and the potential consequences of the identified risks as per ISO 31000 and
ISO/IEC 31010 in their actual current version.
Locking and Interlocking Devices: These devices should be checked for proper working condition and capa-
bility of performing their intended functions. Make replacements only with the original equipment manufac-
turer’s OEM renewal parts or kits. Adjust or repair in accordance with the manufacturer’s instructions.
Periodic Inspection: Equipment should be inspected periodically. Inspection intervals should be based on
environmental and operating conditions and adjusted as indicated by experience. At a minimum, an initial
inspection within 3 to 4 months after installation is recommended. Inspection of the electrical control systems
should meet the recommendations as specified in the National Electrical Manufacturers Association (NEMA)
Standard No. ICS 1.3, Preventative Maintenance of Industrial Control and Systems Equipment, for the general
guidelines for setting-up a periodic maintenance program.
Replacement Equipment: Use only replacement parts and devices recommended by the manufacturer to
maintain the integrity of the equipment. Make sure the parts are properly matched to the equipment series,
model, serial number, and revision level of the equipment.
Warnings and cautions are provided in this manual to help avoid serious injury and/or possible damage to
equipment:
DANGER
Immediate hazards which WILL result in severe personal injury or death.
WARNING
Hazards or unsafe practices which COULD result in severe personal injury or death.
CAUTION
Hazards or unsafe practices which COULD result in minor personal injury or product or property damage.

Care of Component Materials Votator® II Scraped Surface Heat Exchanger
Page 8 Waukesha Cherry-Burrell®95-03057, 06/2023
Care of Component Materials
NOTE: SPX FLOW recommends the use of an FDA-approved anti-seize compound on all threaded
connections.
WARNING
Failure to comply with the Care of Component Materials could lead to bodily injury.
Stainless Steel Corrosion Corrosion resistance is greatest when a layer of oxide film is
formed on the surface of stainless steel. If film is disturbed or
destroyed, stainless steel becomes much less resistant to corro-
sion and may rust, pit or crack.
Corrosion pitting, rusting and stress cracks may occur due to
chemical attack. Use only cleaning chemicals specified by a repu-
table chemical manufacturer for use with stainless steel. Do not
use excessive concentrations, temperatures or exposure times.
Avoid contact with highly corrosive acids such as hydrofluoric,
hydrochloric or sulfuric. Also avoid prolonged contact with chlo-
ride-containing chemicals, especially in presence of acid. If chlo-
rine-based sanitizers are used, such as sodium hypochlorite
(bleach), do not exceed concentrations of 150 ppm available
chlorine, do not exceed contact time of 20 minutes, and do not
exceed temperatures of 104°F (40°C).
Corrosion discoloration, deposits or pitting may occur under prod-
uct deposits or under gaskets. Keep surfaces clean, including
those under gaskets or in grooves or tight corners. Clean immedi-
ately after use. Do not allow equipment to set idle, exposed to air
with accumulated foreign material on the surface.
Corrosion pitting may occur when stray electrical currents come
in contact with moist stainless steel. Ensure all electrical devices
connected to the equipment are correctly grounded.
Elastomer Seal Replace-
ment Following Passiva-
tion
Passivation chemicals can damage product contact areas of this
equipment. Elastomers (rubber components) are most likely to be
affected. Always inspect all elastomer seals after passivation is
completed. Replace any seals showing signs of chemical attack.
Indications may include swelling, cracks, loss of elasticity or any
other noticeable changes when compared with new components.

Votator® II Scraped Surface Heat Exchanger Introduction
95-03057, 06/2023 Waukesha Cherry-Burrell®Page 9
Introduction
Models and Specifications The Votator II can be furnished for horizontal or vertical installa-
tion, available in the following models:
This manual covers the Horizontal and Vertical Votator II. Special
considerations for the installation and maintenance of each
model are noted.
Cylinder Assembly The cylinder assembly consists of a rotating shaft inside of two
concentric tubes. The outer tube is called the jacket, and contains
working fluid to heat or cool the contents of the inner, product
tube. The product tube provides a heat exchange surface for the
product.
Standard materials of construction for product tubes are:
• Pure nickel with a hard chrome plated interior surface.
• Stainless steel with a hard chrome plated interior surface.
• Stainless steel with no plating.
• Carbon steel with a hard chrome plated interior surface.
• Duplex steel with a hard chrome plated interior surface.
• Duplex steel with no plating
Product Side and Jacket
Pressure Ratings
Check the data plate attached to the cylinder for the exact pres-
sure rating specification of the unit.
Machine Serial Number The machine serial number is stamped on a serial number name-
plate located on the machine side as shown in Figure 1. On verti-
cal units (not shown), the nameplate is on the cylinder. Include
the machine model and serial number with each parts order.
Model Heat Transfer Area Jacket Type
6 x 84 11 ft2 (1.0 m2 ) Steam/Liquid Refrigeration
6 x 72 9 ft2 (0.84 m2 ) Steam/Liquid Refrigeration
6 x 48 6 ft2 (0.56 m2 ) Steam/Liquid Refrigeration
6 x 36 4.2 ft2 (0.39 m2 ) Steam/Liquid Refrigeration
6 x 24 3.0 ft2 (0.28 m2 ) Steam/Liquid Refrigeration
Figure 1 - Machine Serial Number
Location

Introduction Votator® II Scraped Surface Heat Exchanger
Page 10 Waukesha Cherry-Burrell®95-03057, 06/2023
Votator II Media
Configurations
The Votator II is available in the following configurations:
• BWS-Brine/Water/Steam: For liquid and steam heating and
cooling applications.
• LIQUID: For water or glycol.
• VAPOR: For steam or refrigeration.
Special Considerations for
Vertical Votator II
The Vertical Votator II cylinder assembly is shipped for on-site
installation on the mounting pole. When receiving the shipment,
check for the following, shipped separately in their own crate or
crates:
• Scraped Surface Heat Exchanger.
• Frame poles (including attached hydraulic cylinder) with
hydraulic pump & reservoir assembly(s).
• Accumulators, Refrigeration Valves and Piping, if furnished.
• Mount plates, nuts & bolts, and interconnecting product
piping.

Votator® II Scraped Surface Heat Exchanger Installation
95-03057, 06/2023 Waukesha Cherry-Burrell®Page 11
DANGER
Installation
Site Selection
Considerations
Foundation & Drainage
The Votator II should be located on a firm foundation, an
gled to allow liquids to drain away from the unit.
Clearances • The rear and sides of the unit, or unit cluster, should have
adequate clearance to provide easy access for main
tenance.
• The front of the Horizontal unit should have the following
minimum clearances to allow for removal of the mutator
shaft:
6 x 84 Votator II - 102 in (259 cm)
6 x 72 Votator II - 90 in (230 cm)
6 x 48 Votator II - 71 in (180 cm)
6 x 36 Votator II - 59 in (150 cm)
6 x 24 Votator II - 40 in (102 cm)
• The bottom of the Vertical unit should have the following
minimum clearances to allow for removal of the mutator
shaft:
6 x 84 Votator II - 96 in (244 cm)
6 x 72 Votator II - 84 in (214 cm)
6 x 48 Votator II - 66 in (168 cm)
6 x 36 Votator II - 54 in (137 cm)
6 x 24 Votator II - 48 in (122 cm)
Leveling the Unit The Horizontal Votator II should be leveled lengthwise (along the
length of the cylinder) and crosswise by adjusting the feet on the
legs.
For units that will perform CIP, set the level for a forward pitch of
0.3 degrees (1/16 inch per foot).
If CIP is not required, set the level to a pitch that will give the best
drainage for the cylinder.
Electrical Power
Connections
The following electrical components for the Votator II require con-
nection in accordance with the electrical schematics in this man-
ual, tagged vendor specifications, and local regulations:
The Votator II operates with high
voltage. Electrical work should be
performed by a Licensed Electrician in
accordance with local regulations.
• Drive Motor
Each cylinder is furnished with a 3-phase, multi-voltage gear
motor with a horsepower rating per the application:
Standard Votator II accepts 7-1/2 HP (5.5 kW), 10 HP (7.5
kW), 15 HP (11kw) or 20 HP (15 kW); Extra Heavy Duty Vota-
tor II accepts 25 HP (18.8 kW), 30 HP (22.5 kW) or 40 HP (30
kW). The motor is fixed speed and suitable for use with a
variable frequency controller.
• Hydraulic Pump Motor (Vertical units only)
A 1.0 (0.75 kW) horsepower, fixed speed motor. A variable
frequency controller should not be used for this motor. It is
recommended that an emergency shut off switch be installed
for this unit.

Installation Votator® II Scraped Surface Heat Exchanger
Page 12 Waukesha Cherry-Burrell®95-03057, 06/2023
• Refrigeration Valves:
liquid feed solenoid valve
dual pressure regulating valve
level switch
hot gas pressure regulating valve
hot gas solenoid valve
• Freeze Protection Components (if furnished):
current sensing relay
instrument current transformer
digital current indicator
Mutator Rotation Check Correct mutator shaft rotation is counterclockwise when looking
down the unit from the drive end (indicated by a sticker located
near the motor). To check for correct rotation, momentarily start
the drive motor and observe the rotation of the shaft in the back
of the unit.
If the rotation of the shaft is incorrect, the drive motor is wired
incorrectly. Have a Licensed Electrician change the wiring so the
rotation of the shaft is correct.
Mechanical Seals The Votator II is furnished with either a single or double mechani-
cal seal on both ends of the mutator shaft. Units furnished before
2005 were installed with either a single or double mechanical seal
configuration. On page 13, “2005 Mechanical Seal Design”
describes seals for units furnished between 2005 and 2012, and
“2012 Mechanical Seal Design” describes seals for standard
units finished from 2012 to the present. Certain Votator II units
have also been supplied with a special "Ball-lock Mechanical
Seal" or a "Packing Gland" instead. Consult your order documen-
tation to verify the specific seal configuration for each Votator II
unit.
Single Mechanical Seal
The single mechanical seal is normally not flushed, but it can be.
It is shipped with a lip seal (See Figure 2) designed to contain
water or a liquid flush. The spring in the seal must be removed
and the seal reinstalled with the lip in the relief position to allow
flushing. This will minimize any damage to the contact surface on
the stub end of the shaft.
When the single mechanical seal is rotating, there must be prod-
uct or water flow to provide cooling to the rotating surfaces to
avoid permanent damage to the seal assembly.
If the seal is flushed, the fluid flow should be in the range of 5 to
10 gallons per hour and not exceed 5 psig. Piping to seals should
be in the bottom of head and out the top and with parallel flow,
never in series.
Double Mechanical Seal
The double mechanical seal is furnished with a primary seal for
product and a secondary seal to contain a steam or water flush.
Figure 2 - Single Mechanical Seal
Figure 3 - Double Mechanical Seal

Votator® II Scraped Surface Heat Exchanger Installation
95-03057, 06/2023 Waukesha Cherry-Burrell®Page 13
2005 Mechanical Seal Design
Units furnished between 2005 and 2012 have a one-piece
chrome-oxide coated rotating body running against a stationary
ceramic head insert. It can easily be converted to a double
mechanical seal by adding secondary components to contain a
steam or water flush.
2012 Mechanical Seal Design
Standard units furnished starting in 2012 have removable rotary
seal faces in solid carbon, silicon carbide, tungsten carbide, and
narrow-face tungsten carbide materials. The stationary seal faces
are made of solid ceramic or silicon carbide. Like the 2005
design, the 2012 single mechanical seal can be converted to a
double mechanical seal by adding secondary components to con-
tain a water or steam flush.
Figure 4 - Single Mechanical Seal
Figure 5 - Double Mechanical Seal
Figure 6 - 2012 Single Mechanical
Seal
HE100-117
Figure 7 - 2012 Double Mechanical Seal (shown with Narrow-
Face Rotary)
HE100-118

Installation Votator® II Scraped Surface Heat Exchanger
Page 14 Waukesha Cherry-Burrell®95-03057, 06/2023
Flush Fluid Requirements
The double mechanical seal must be flushed using the threaded
flush ports, anytime the mutator shaft is rotated. Failure to do this
will result in rapid seal failure due to excessive contaminate and
heat buildup.
The fluid flow should be in the range of 5 to 10 gallons per hour,
at a typical temperature of 80°F - 120°F (25°C - 49°C). Fluid com-
position and temperature should be selected to dissolve or sus-
pend any product leakage and cool the mechanical seal faces,
and should also be compatible with the sealing O-ring material.
Piping to seal cavities for horizontal units should be in the bottom
of head and out the top, piped with parallel flow, never with multi-
ple seal cavities in series flow.
Piping Guidelines for Piping
Refer to the general assembly drawings in this manual for jacket
connection sizes and locations, and suggested media piping
drawings.
• Support ALL piping independently.
• Provide for line expansion and contraction.
• Install a safety valve to protect jacket.
• Provide temperature indicators on both sides of Votator II
unit.
• Provide pressure gauge on discharge side of pump.
• When using liquid coolant, provide a method to introduce
heating media into the jacket to thaw overcooled product.
• Provide a liquid coolant system bypass line around the unit to
allow the coolant system to be brought down to operating
temperature without circulating coolant through the jacket.
Suggested Media Piping
for Steam
The steam solenoid is opened, which lets pressure-controlled
steam from the boiler into the jacket. A temperature sensor moni-
tors the temperature of the product and regulates the steam flow
to achieve the required temperature. Heating of the product takes
place when the steam condenses into water from the transfer of
heat through the jacket.
CAUTION
The safety valve should be installed on
the discharge side of product pump for
safety and equipment protection.
DANGER
Do not install any positive shutoff
valves downstream of the Votator II
unit.
WARNING
Do not allow a volume of liquid to
become isolated in the jacket without
relief protection. Thermal expansion
created as liquid warms can generate
enough force to crush tube, causing
damage to internal components and
drive system.

Votator® II Scraped Surface Heat Exchanger Installation
95-03057, 06/2023 Waukesha Cherry-Burrell®Page 15
Suggested Media Piping
for Water or Liquid
The media piping should flow counter-current to the product flow,
and should be circulating at a rate of 50 gpm. The suggested
arrangement automates the source flow to the actual heat
exchange requirements to provide maximum control of the pro-
cess.
Table 1: Call Outs For Figure 8
1. Steam IN
2. Strainer
3. By-Pass Line
4. Steam Pressure Regulator
5. Steam Solenoid
6. Temperature Regulator
7. I/P
8. Temperature Control
9. Product OUT
10. Product IN
11. Drain Valve
12. Condensate Trap
Figure 8 - Suggested Media Piping, Steam
S
PI
TC
TY
TE
PI
PI
1
24
3
5
6
7
9
8
10
11 12
HE100-056
Table 2: Call Outs For Figure 9
1. Media IN
2. Product OUT
3. Product IN
4. Temperature Regulator
5. Media OUT
6. I/P
7. Temperature Control
Figure 9 - Suggested Media Piping, Water or Liquid
TC
TY
TE
TI
TI
PI
MS
TI
PI
TI
1
2
3
4
567
HE100-057

Installation Votator® II Scraped Surface Heat Exchanger
Page 16 Waukesha Cherry-Burrell®95-03057, 06/2023
WARNING
CAUTION
DANGER
CAUTION
Refrigeration Piping
Installation
Analyze plant refrigeration load capacity thoroughly. The system
must be sized to adequately support the additional capacity of
this cylinder. All pipes must be clean and free of oil, chips and
sealant residue. Excessive residue in plant piping can foul and
clog cylinder refrigeration valves and components, causing costly
delays in start-up. Refer to the appropriate piping schematic in
this manual for Liquid Overfeed (LOF) (page 19) or Gravity
Refrigeration System (page 20).
Ammonia or Freon lines should be
installed by fully trained and qualified
Refrigeration Piping Specialists.
Liquid Line Installation
The liquid line should be installed to provide a constant and
steady flow of liquid. Check with system requirements and plant
capacities to ensure that refrigeration piping is sized properly.
A suction trap or auxiliary receiver
should be installed in the line to prevent
carry-over back to compressor.
Suction Line Installation
All Votator II refrigeration units operate best when provided with
constant suction pressure. To ensure constant pressure, do the
following:
• Size the suction header for at least 50% above rated capacity
of cylinder.
• Do not connect to a header already in use by other
equipment with widely varying loads.
• Insulate any suction line that passes through a cold room to
prevent condensate formation. Install a trap or auxiliary
receiver in the line.
• Keep the suction pressure at the compressor as low as
possible. (Lower pressure allows greater cooling capacity.)
Hot Gas Line (if required)
Review the following guidelines when connecting a hot gas line to
the system:
• Connection of a hot gas line should be from the compressor
high side of the line past an oil trap or separator, to minimize
drawing in oil.
• DO NOT run line through a cold room or beside a cold
suction line.
• Slope the line away from the equipment at 1/8 inch per foot (1
mm per 100 mm) minimum.
• Install a strainer or filter in addition to the recommended
shutoff valves and pressure gauge.
Never install a shutoff valve on this line.
Never vent or connect relief line back to
suction line.
Pressure Relief Line
The pressure relief line MUST be exhausted to the outside of the
building.
The relief valve is factory set for
appropriate pressure and never needs
adjusting.
Never cap the relief line or tie it back to the suction line.

Votator® II Scraped Surface Heat Exchanger Installation
95-03057, 06/2023 Waukesha Cherry-Burrell®Page 17
Refrigeration Valves Liquid Feed Solenoid Valve
The Liquid Feed Solenoid Valve is for on/off control of liquid
refrigerant flow. The valve is closed when de-energized.
Dual Pressure Regulating Valve
The Dual Pressure Regulating Valve is shipped loose for installa-
tion in the vapor line on the discharge side of the refrigeration pip-
ing. The valve regulates high pressure for internal relief and low
pressure with an on/off solenoid valve for process control. It can
be furnished for manual regulating; pneumatic control with clean,
dry, and oil free air from 0-60 psig; or with a 115 volt motor
mounted on the regulating pilot that responds to a 4-20 milliamp
electrical signal. When using air, a decrease in pressure will
lower the inlet pressure, producing a lower temperature.
Sporlan Level Master Control (LMC) or Level
Switch
Gravity Systems with Accumulator are furnished with a Sporlan
Level Master Control (LMC) or a Level Switch.
The LMC is a thermostatic expansion valve with a 15-watt heater
element. As the level in the accumulator drops, the electrically
added heat increases the pressure within the thermostatic ele-
ment and opens the valve. As the liquid level rises, the electrical
input is balanced by the heat transfer from the bulb to the liquid
refrigerant and modulates or shuts off the liquid flow. Minor
adjustments in the level response can be made by adjusting the
spring tension of the expansion valve seat.
If a refrigerant level float switch is provided (single or double
depending upon specifications), it is used to control the accumu-
lator level by opening or closing a solenoid operated refrigeration
valve. These systems contain that valve and an expansion valve
with a flow indicating scale.
Refrigerant Return Valve
Some Horizontal Votators have a solenoid operated Refrigerant
Return Valve that is in the closed position when the solenoid is
de-energized. This valve is used to stop the cooling process and
is closed if hot gas is applied.
High capacity freon systems have two solenoid valves: one for
hot gas to activate the return valve, the other to bleed the gas to
the suction line.

Installation Votator® II Scraped Surface Heat Exchanger
Page 18 Waukesha Cherry-Burrell®95-03057, 06/2023
DANGER
Flow Control Valves
Liquid Overfeed (LOF) or Pumped Refrigeration Systems have a
manually adjusted Flow Control Valve with setting scale for refrig-
erant flow to each Votator cylinder. This valve maintains a con-
stant flow of liquid to the Votator and can serve as a check valve
to prevent back flow of liquid during hot gas.
The indicator scale on the valve corresponds to the refrigeration
tonnage. The regulator is set by multiplying the tonnage load by
the desired re-circulation rate. For example, if the refrigeration
load is 10 tons and 200% (3:1) overfeed is desired, set the valve
at 30 on the scale reading.
Hot Gas Pressure Regulating Valve
Systems with hot gas include a solenoid-operated Pressure Reg-
ulating Valve for introducing and maintaining constant down-
stream pressure for a hot gas inlet.
Pumped Refrigeration Systems include a solenoid operated Hot
Gas Purge Valve for each Votator hot gas discharge line.
Never install a shutoff valve in a relief
line.
Pressure Relief Valve
This valve is located on the accumulator and should be
exhausted to outside the building. The valve is factory-set to
relieve at the Votator II jacket design pressure, or the accumula-
tor design pressure, if that is lower (some accumulators supplied
in earlier years were only rated for 150 psig).

Votator® II Scraped Surface Heat Exchanger Installation
95-03057, 06/2023 Waukesha Cherry-Burrell®Page 19
Suggested Media Piping
for Liquid Over Feed
Refrigeration
The liquid feed solenoid valve, when opened, allows liquid refrig-
erant to flow into the jacket of the heat exchanger. The flow is
regulated by a manually set flow control valve. Cooling is
achieved when the pressure control valve is opened, causing the
pressure in the jacket to be reduced. This causes the liquid refrig-
erant to change phase, absorbing heat from the heat exchanger
tube and product. The cooling rate is controlled by the back pres-
sure on the system and stops when the valve is closed. Hot gas
is used to push all of the remaining liquid from the system into the
low pressure receiver and quickly warm the system. The low
pressure receiver in the compressor room is designed to sepa-
rate the liquid from the vapor before re-compressing.
Figure 10 - Suggested Media Piping, Liquid Over Feed or Pumped Refrigeration
23
4
5
6
7
8
9
10
11
12
13
13
14
15
16
1
1
17
S
S
PI
S
S
S
HE100-053a
18
or
Table 3: Call Outs For Figure 10 (on page 19)
1. Safety Relief Valve
2. Product IN
3. Product OUT
4. Low Pressure Solenoid Valve, see Item 10
5. Hot Gas
6/7. Electric Control Signal or Instrument Air
Regulated to 60 PSI
8. Low Pressure Regulating Valve, see Item 10
9. High Pressure Regulating Valve, see Item 10.
10. Dual Pressure Regulating Valve (includes Items
4, 8 and 9)
11. To Refrigerant Low Pressure Receiver
12. Hot Gas Purge Valve
13. Flow Control Valve
14. Liquid Feed Solenoid Valve
15. Liquid Refrigerant from Low Pressure Receiver
16. Hot Gas Reducing Valve
17. Hot Gas Solenoid Valve
18. Hot Gas Pressure Regulating Valve

Installation Votator® II Scraped Surface Heat Exchanger
Page 20 Waukesha Cherry-Burrell®95-03057, 06/2023
Suggested Media Piping
for Gravity Refrigeration
Liquid refrigerant from the receiver is stored in a surge drum
located above the Votator II. The level in the surge drum is auto-
matically controlled by the level system provided with the equip-
ment. Gravity forces the refrigerant into the cooling jacket where
it comes into contact with the heat transfer tube. The warm prod-
uct causes a portion of the liquid refrigerant to change phase,
causing the heat transfer tube and the product to be cooled. The
cooling rate is controlled by the refrigerant back pressure, and hot
gas can be used to push the liquid refrigerant from the Votator
cylinder and rapidly warm the system.
NOTE: Set the high pressure regulating valve 5 to 10 psi higher
than the outlet pressure of the hot gas pressure reducing valve
and lower than the relief setting.
Figure 11 - Suggested Media Piping, Gravity Refrigeration - HORIZONTAL
PI
1
10 12
11
11 13
PI
S
S
S
S
PI
5
6
2
3
20
1
7
14
4
15
16
17
13
10 11
12
19
9
18
21
22
HE100-061a
Level Switch Control
OR
Level Master Control