Buffalo filter ViroVac VV120 User manual

ViroVac®
Surgical Smoke Evacuator
Service Manual
BUFFALO FILTER
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i
Copyright and Non-Disclosure
Buffalo Filter LLC asserts ownership and copyright, under all applicable law, over all designs, concepts,
ideas, drawings, software, and any other intellectual property described or referred to in this manual
(except where specifically identified otherwise). All or any part of this information may not be disclosed
under any circumstances to any other company or other party without the express written consent of
Buffalo Filter LLC.
REVISION DATE AUTHOR CHANGES
A 01/2018 Buffalo Filter LLC

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Table of Contents
Introduction..........................................................................................1-1
Purpose.............................................................................................1-1
Audience...........................................................................................1-1
Precautions.......................................................................................1-2
Warnings,Cautions,and Notices.........................................................1-3
Glossary............................................................................................1-5
Technical Support..............................................................................1-6
Product Return...................................................................................1-6
Disposable Part Orders.......................................................................1-6
Replacement Part Orders...................................................................1-6
System Overview..................................................................................2-1
General Description...........................................................................2-1
Product Layout...................................................................................2-1
Major Assemblies...............................................................................2-4
System Information..............................................................................3-1
System Specifications........................................................................3-1
System References............................................................................3-3
System Operation.................................................................................4-1
Installation......................................................................................4-1
Filter Instructions................................................................................4-3
System Maintenance............................................................................5-1
General Maintenance.........................................................................5-1
Cleaning............................................................................................5-1
Inspection..........................................................................................5-1
Troubleshooting..................................................................................6-1
Troubleshooting Table.......................................................................6-1
Repair....................................................................................................7-1
Precautionary Warnings.....................................................................7-1
Tools..................................................................................................7-2
Tests.................................................................................................7-3
Disassembly......................................................................................7-4
Reassembly....................................................................................7-11
Appendix A............................................................................................A-1
Parts List............................................................................................A-1
ii

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Chapter 1 | Introduction
1
Introduction
1-1
Purpose
The purpose of the ViroVac© Surgical Smoke Evacuator is to evacuate and filter surgical smoke and aerosols
created by the interface of the surgical tools with tissue (examples: lasers, electrosurgery systems, and ultrasonic
devices). The ViroVac© Surgical Smoke Evacuator has been designed to provide the appropriate suctioning
using one of the three motor speeds to manage surgical smoke. The ultra-quiet motor is used to draw the
surgical smoke from the surgical site through the vacuum tubing and into the filter where the surgical smoke is
processed through four (4) stages of filtration. A single, completely enclosed, disposable filter is used to simplify
installation and removal during filter changes to protect healthcare personnel from potential contamination during
filter changes.
1. The first-stage filtration utilizes a pre-filter to trap and remove gross particulate and casual fluid.
2. The second-stage filtration is an Ultra Low Penetration Air (ULPA) filter with a high-tech patented design that
captures particulates and micro-organisms from 0.1 to 0.2 microns at 99.999% peak efficiency.
3. The third-stage filtration uses the highest grade virgin activated carbon. The activated carbon is known to
remove toxic organic gases and may provide optimal odor removal.
4. The fourth-stage filtration is a woven fiberglass filtration media used to reduce the amount of activated
carbon fines from migrating out of the filters.
The intended use depends on the approval of the country. Refer to the instructions for use of the ViroVac© Surgical
Smoke Evacuator and its accessories.
Audience
This services manual is strictly for the use by a Buffalo Filter LLC trained technician.
This service manual contains essential information to safely and effectively service the ViroVac© Surgical Smoke
Evacuator. Instructions for the operation of the ViroVac© Surgical Smoke Evacuator and related dangers, warnings,
and cautions concerning electrosurgery are beyond the scope of this service manual. Before using and servicing,
thoroughly review this service manual and the instructions for use as well as service manuals of all equipment
which will be used during servicing. Use all equipment as instructed. Keep this service manual in a safe and
accessible location. Any questions or comments about any information in this service manual shall be directed to
Buffalo Filter LLC.

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Chapter 1 | Introduction
1-2
Precautions
NOTE: All Warnings, Cautions, and Notices should be read and understood before servicing
the ViroVac© Surgical Smoke Evacuator.
• Read this service manual thoroughly and be familiar with its contents prior to servicing the ViroVac© Surgical
Smoke Evacuator.
• Confirm the operational setup of the ViroVac© Surgical Smoke Evacuator prior to a servicing procedure.
• Disconnect the ViroVac© Surgical Smoke Evacuator from the grounded electrical outlet prior to inspecting the
ViroVac© Surgical Smoke Evacuator components.
• The ViroVac© Surgical Smoke Evacuator produces a strong vacuum, therefore, check the Motor Speed
Indicator setting before activating.
• The filter and single-use accessories are completely disposable. Dispose according to the local codes or
regulations and facility policy.
• Route the power cord to prevent a tripping hazard or crimping of cords, which could cause unreliable operation
or electric shock.
• Route the pneumatic footswitch and any other attached accessories to prevent a tripping hazard or crimping
of tubing, which could cause unreliable operation or electrical shock.
• Do not service or operate the ViroVac© Surgical Smoke Evacuator in the presence of flammable or explosive
gases.
• The ViroVac© Surgical Smoke Evacuator may cause radio interference or may disrupt the operation of nearby
equipment. It may be necessary to take mitigation measures, such as reorienting or relocating the ViroVac©
Surgical Smoke Evacuator or shielding the location.
• The use of accessories, other than those specified by the manufacturer, as replacement parts for internal
components may result in increased emissions or decreased immunity of the ViroVac© Surgical Smoke
Evacuator.
• If adjacent or stacked use is necessary, operation of the ViroVac© Surgical Smoke Evacuator may be affected.
Normal operation should be verified.
• Review the routine servicing by the qualified facility’s biomedical technical personnel.
• To avoid risk of electric shock, the ViroVac© Surgical Smoke Evacuator must only be connected to a supply
with a grounded electrical outlet.
• Using any other filter or accessory, not specified by the manufacturer, may cause damage and/or cause the
ViroVac© Surgical Smoke Evacuator to be inoperable.
• Care must be exercised in the installation of tubing, adapters, and fluid collection devices. Failure to follow the
procedures outlined in this service manual may result in overheating of the motor and may void the warranty.
• The ViroVac© Surgical Smoke Evacuator is not intended for evacuation of fluid. If fluid is expected to be
aspirated, a fluid collection device must be installed onto the filter. Failure to install a fluid collection device
could cause filter blockage and electrical damage.

Chapter 1 | Introduction
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1-3
Precautions (continued)
• The filter should be changed according to the filter life Indicator. The filter should not be used for more than
the filter life specified. Failure to change the filter may result in decreased efficiency and possible internal
contamination.
• Do not block either the tubing or the filter during operation. An occlusion or significant restriction may cause
the motor to overheat and the ViroVac© Surgical Smoke Evacuator to stop working.
• Installation of the ViroVac© Surgical Smoke Evacuator must be performed such that the intake and exhaust
vents located on the bottom of the system are not obstructed. Failure to properly install the ViroVac© Surgical
Smoke Evacuator may cause reduced performance, damage, and/or cause the ViroVac© Surgical Smoke
Evacuator to be inoperable.
• The ViroVac© Surgical Smoke Evacuator must be located so there is 6 to 8 in. (15.24 to 20.32 cm) of clearance
between the rear of the unit and any obstruction.
• Use only the power cord provided with the ViroVac© Surgical Smoke Evacuator and always connect it to a
grounded electrical outlet.
• The ambient temperature during the operation of the ViroVac© Surgical Smoke Evacuator must be kept
between 50 to 104°F (10 to 40°C).
• The relative humidity during operation of the ViroVac© Surgical Smoke Evacuator must be kept between 10%
to 75%.
• An atmospheric pressure range of the ViroVac© Surgical Smoke Evacuator must be kept between 700 hPa
to 1,060 hPa.
• Storage environmental ambient temperature of the ViroVac© Surgical Smoke Evacuator should be kept
between 14 to 140°F (–10 to 60°C).
• Storage environmental relative humidity of the ViroVac© Surgical Smoke Evacuator should be kept between
10% to 75%.
Warnings, Cautions, and Notices
Indicates an IMMINENTLY hazardous situation which, if not avoided, WILL result in death or
serious injury.
DANGER
Indicates a POTENTIALLY hazardous situation which, if not avoided, CAN result in death or
serious injury.
WARNING
Indicates a POTENTIALLY hazardous situation which, if not avoided, MAY result in minor or
moderate injury.
CAUTION
Indicates additional helpful information.
NOTE
NOTE:

Symbols
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1-4
DANGER – HIGH VOLTAGE
CAUTION – ELECTRICAL SHOCK HAZARD. DO NOT REMOVE COVER.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING
DANGER
CAUTION – RISK OF EXPLOSION IF USED IN THE PRESENCE OF FLAMMABLE
ANESTHETICS.
CAUTION
TYPE CF APPLIED PART
PROTECTION AGAINST INGRESS OF WATER AS DETAILED IN IEC 60529
IPX1
ALTERNATING CURRENT
PROTECTIVE EARTH GROUND
EQUIPOTENTIALITY
DENOTES THE DATE THE EQUIPMENT WAS MANUFACTURED
DENOTES THE MANUFACTURER OF THE DEVICE
NON-IONIZING RADIATION
CONSULT INSTRUCTIONS
REMOTE ACTIVATOR
Chapter 1 | Introduction
Warnings, Cautions, and Notice (continued)

Chapter 1 | Introduction
Glossary
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1-5
Name Description
A Ampere, unit of electric current.
Automatic Activation Device Device used to remotely operate the ViroVac© Surgical Smoke
Evacuator to control the suction on/standby modes in conjunction
with ESU activation saving filter life (sold separately).
CISPR International Special Committee on Radio Interference
EMC Electromagnetic Compatibility
ESD Electrostatic Discharge
Filter Completely enclosed device where surgical smoke is processed
through four (4) stages of filtration.
Filter Life Indicator A visual status indication of the life of filter in use.
Grounded Electrical Outlet An electrical outlet that, in addition to the current-carrying contacts,
has a third contact that serves for connection to a grounding
conductor. Devices and equipment which are to benefit from this
safety feature must have an appropriate three-prong plug which is
inserted into this outlet. There are other possible arrangements for
such outlets, including the use of lateral grounding contacts which
make contact with metallic strips on the side of the plug. Also called
by various other names, including grounding outlet, ground outlet,
grounded receptacle, grounding receptacle, grounded socket,
safety outlet, or three-prong outlet.
IEC International Electrotechnical Commission
LED Light-emitting diode (LED) is a two-lead semiconductor light source
which emits light when activated.
Pneumatic Footswitch Device used to remotely operate the ViroVac© Surgical Smoke
Evacuator to control suction on/standby modes.
Power Cord A cable used to connect the ViroVac© Surgical Smoke Evacuator to
a grounded electrical outlet.
RF A frequency or band of frequencies in the range 104to 1011 or 1012
Hz, suitable for use in telecommunications.
Suction On/Standby Button Button to shift between two (2) modes of suction control: on and
standby.
Surgical Smoke Evacuator Device with one or more filters designed to evacuate surgical smoke
and aerosol from the operative site, filter out the contaminants,
and return filtered air to the operating room.
V(ac) Volts Alternating Current

Chapter 1 | Introduction
Technical Support
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1-6
Customer/Technical Services:
+1 800.343.2324 (United States)
+1 716.835.7000 (International)
Buffalo Filter LLC
5900 Genesee Street
Lancaster, New York 14086 USA
www.buffalofilter.com
Product Return
Disposable Part Orders
1. Record the ViroVac© Surgical Smoke Evacuator model name and serial number.
2. Contact Customer/Technical Services at 1.800.343.2324, extension 266 (United States) or email at
[email protected], and describe the problem.
3. If the problem cannot be resolved over the phone and the ViroVac© Surgical Smoke Evacuator must be
returned for repair, a Return Material Authorization (RMA) number must be obtained from Customer/
Technical Services before returning the ViroVac© Surgical Smoke Evacuator. The customer must print,
fill out, and sign the return instructions form located at http://buffalofilter.com/service-support/return-
policy/.
4. Use the original packaging material to return the ViroVac© Surgical Smoke Evacuator whenever
possible. If the original packaging material is not available, ask Customer/Technical Services for
advice on how to pack the ViroVac© Surgical Smoke Evacuator for return shipment.
5. A ship to address will be supplied by Customer/Technical Services.
Perform the following procedures if the ViroVac© Surgical Smoke Evacuator is required to be returned to Buffalo
Filter LLC:
To order parts or accessories for the ViroVac© Surgical Smoke Evacuator, contact Customer Service.
Available accessories:
• Replacement Filters
• Fluid Trap
• Automatic Activation Device
• Tubing
• Reducer Fittings
• Electrosurgical Smoke Pencils & Adapters
Replacement Part Orders
To order replacement parts for the ViroVac© Surgical Smoke Evacuator, contact Technical Services.

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Chapter 2 | System Overview
2
System Overview
General Description
The ViroVac© Surgical Smoke Evacuator is designed to evacuate and filter surgical smoke and aerosols created
by the interface of surgical tools with tissue (examples: lasers, electrosurgery systems, and ultrasonic devices).
There are three (3) system models of the ViroVac© Surgical Smoke Evacuator:
Product Layout
The external instrument layout is the same for all the ViroVac© Surgical Smoke Evacuator models. See page 2-2
for the layout of the instrument from the front view ( Figure 2-1 ) and the rear view ( Figure 2-2 ). Descriptions of
the instruments, which are located on the front and rear panels of the ViroVac© Surgical Smoke Evacuator, are
denoted on page 2-3, and accessories are noted in ( Figure 2-3 ) on page 2-4 .
2-1
MODEL DESCRIPTION
VV120 ViroVac©120V Surgical Smoke Evacuator
VV220 ViroVac©220V Surgical Smoke Evacuator
DKVV220 ViroVac©220V Surgical Smoke Evacuator with exhaust capture port

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2-2
Chapter 2 | System Overview
Product Layout (continued)
Suction
On / Standby
Button
Service Indicator
LED
Pneumatic
Footswitch Port Filter Life
Indicator
LED
Motor Speed
Indicators
Low / Medium / High
LED
Motor On Indicator
LED
Standby Indicator
LED
Three-Port Filter
with
Hidden Male Ports
Motor Speed
Control Button
Low / Medium / High
CONTROL PANEL
Figure 2-1
Automatic Activation
Device Port
Power Receptacle
Equipotential
Grounding Terminal
Figure 2-2
Front View
Rear View

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2-3
Chapter 2 | System Overview
Front and Rear Panel Instrument Descriptions
POWER ON/OFF
To power on the ViroVac© Surgical Smoke Evacuator, connect the supplied power cord to a grounded electrical
outlet and the power receptacle at the rear of the ViroVac© Surgical Smoke Evacuator. Once power has been
applied, the Standby LED illuminates the color yellow. Turn the ViroVac© Surgical Smoke Evacuator main power
off, by unplugging the power cord ( Figure 2-3 ) on page 2-4 from the power receptacle on the ViroVac© Surgical
Smoke Evacuator or the grounded electrical outlet.
SUCTION ON/STANDBY BUTTON
Press the Suction On/Standby Button on the ViroVac© Surgical Smoke Evacuator to shift between the two (2)
modes: On or Standby. The Suction On LED illuminates the color green and the Standby LED illuminates the
color yellow.
MOTOR SPEED CONTROL
Press the Motor Speed Control Button on the ViroVac© Surgical Smoke Evacuator to adjust between the three
(3) motor speed settings: low, medium, and high. The motor speed should be set at the lowest practical setting
to effectively remove the surgical smoke from the operative site.
FILTER LIFE INDICATOR
The Filter Life Indicator on the Control Panel of the ViroVac© Surgical Smoke Evacuator provides a visual
indication of the status of the life of the filter in use and will automatically adjust according to the motor speed
setting selected.
Low motor speed setting = up to 35 hours of Filter Life
Medium motor speed setting = up to 24 hours of Filter Life
High motor speed setting = up to 18 hours of Filter Life
Install an unused filter into the ViroVac© Surgical Smoke Evacuator as per the installation instructions. When
the Motor On LED is illuminated, the Filter Life Indicator will light up the uppermost green LED indicating 100%
filter life. The indicator will progress through subsequent green LEDs to a yellow LED as time elapses and begin
flashing RED to indicate the filter has expired and requires replacement.
When the maximum filter life has expired and the ViroVac© Surgical Smoke Evacuator is not powered off for
greater than six (6) hours or if the main power is disconnected, a new filter is required to activate the ViroVac©
Surgical Smoke Evacuator and to make it operational.
PNEUMATIC FOOTSWITCH PORT
The ViroVac© Surgical Smoke Evacuator is equipped with a pneumatic footswitch ( Figure 2-3 ) on page 2-4 as
an alternative method to using the Suction On/Standby Button. The pneumatic footswitch may be inserted by
plugging it into the pneumatic footswitch port located on the front of the ViroVac© Surgical Smoke Evacuator. The
pneumatic footswitch may be controlled by depressing the footswitch pedal to shift between the Suction On and
Standby modes.
AUTOMATIC ACTIVATION DEVICE PORT
The Automatic Activation Device (sold separately) may also be installed by plugging it into the Automatic
Activation Device port located on the rear of the ViroVac© Surgical Smoke Evacuator. For directions on using
the Automatic Activation Device, please see the instructions that accompany the Automatic Activation Device.
NOTE: The Control Panel contains the following LED indicators: Motor On, Standby, Motor
Speed, Filter Life, and Service. Read all instructions before servicing or operating the ViroVac©
Surgical Smoke Evacuator or installing accessories.

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2-4
Accessories
Operator’s Manual
Bedienungsanleitung
Manual del operador
Manuel d'utilisation
Manuale dell'operatore
Brugervejledning
Bedieningshandleiding
Manual do operador
Operatørhåndbok
Användarhandbok
Návod k obsluze
ViroVac®
Surgical Smoke Evacuator
BF P/N: 901837REVC
BUFFALO FILT ER
120 Power Cord 220 Power Cord Pneumatic Footswitch CD Electronic Manual
Chapter 2 | System Overview
Figure 2-3
Major Assemblies
Fascia Assembly
Figure 2-4

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Chapter 2 | System Overview
Major Assemblies (continued)
Body Assembly
Figure 2-5
2-5

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Chapter 2 | System Overview
Major Assemblies (continued)
Bottom Assembly
Figure 2-6
2-6
Models VV120 and VV220
Model DKVV220

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Chapter 2 | System Overview
Major Assemblies (continued)
Motor Block Assembly
2-7
Figure 2-7
Model DKVV220
Models VV120 and VV220

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Chapter 2 | System Overview
2-8

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Chapter 3 | System Information
3
System Information
System Specifications
• Both the 100/120 V(ac), 50/60 Hz and the 220/240 V(ac), 50/60 Hz ViroVac© Surgical Smoke Evacuator
models comply with IEC 60601-1 electrical specifications.
• Type of protection against electrical shock (UL 60601-1, Clause 5.1): Class I
• Degree of protection against electric shock (UL 60601-1, Clause 5.2): Type CF Applied Part
• Degree of protection against ingress of water (UL 60601-1, Clause 5.3): IPX1
• Method of sterilization or disinfection recommended (UL 60601-1, Clause 5.4):
• Degree of safety of application in the presence of flammable anesthetic mixture with air, oxygen, or
nitrous oxide (UL 60601-1, Clause 5.5): Not Suitable
• Mode of operation (UL 60601-1, Clause 5.6): Continuous
• The fuses on the circuit board are to be serviced by an authorized technician.
> 100/120 V(ac), 50/60 Hz use 10 A 250 Volt Fuse (Slo-Blo), (F1, F2)
> 220/240 V(ac), 50/60 Hz use 8 A 250 Volt Fuse (Slo-Blo), (F1, F2)
• The ViroVac© Surgical Smoke Evacuator requires special precautions regarding electromagnetic
compatibility (EMC) and needs to be installed according to EMC information found in this manual.
• The ViroVac© Surgical Smoke Evacuator utilizes mobile radio frequency (RF) communications equipment
that can affect medical electrical equipment.
Specifications pertain to the use of the ViroVac© Surgical Smoke Evacuator, both domestically and
internationally:
3-1