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© 2018 - Best Purging Systems Corporation

Page 10 of 14 BPS YZ102 IOM-R1.0

Limitations of Liability

Limited Warranty Terms

WHEREBY

 Best Purging Systems Corporation, hereafter referred to as “Manufacturer,” is the sole manufacturer of this Product, Manufacturer 

herein states a portion of the limitations of liability incurred due to any sale or use of the Product.
Manufacturer accepts no liability for any affects or damages incurred by the installation or operation of the Product which is used on any 

enclosures, cases, containers or combinations thereof which are not constructed in complete accordance with the National Electric Code 

and all applicable sections of NFPA 496, or which are not specified as acceptable for use within the constraints of design requirements 

and information that may be contained within this Installation, Operation & Maintenance Manual.

Manufacturer and/or its Agents, Representatives, or Sub-Contractors accept no liability for PERSONAL INJURY, DISMEMBERMENT 

OR DEATH, or for any affects or damages incurred to any device, component, enclosure, equipment or area caused by use of Product, 

unless Product is installed, operated and maintained in complete accordance with this Manual and all applicable National Electric Code 

and NFPA 496 requirements and OSHA regulations.

These Limitations of Liability supersede any and all claims of liability responsibilities claimed by the User and/or its Agents or Subcontractors 

against Manufacturer and/or its Agents, Representatives, or Sub-Contractors regardless of their Terms of Purchase, surrendered hereto, 

and shall survive from the date of sale to the date of discontinued use of the Product. Questions concerning stated and unstated limitations 

to liability may be referred to the Corporate Management Group of the Manufacturer at 4725 Lawndale, La Marque, Texas 77568, USA.

Warranty & Liability Statements

ADVISEMENTS:

 This Warranty Statement is an excerpt for reference only, and is therefore superseded by any variance of Warranty 

Terms and Conditions supplied with the Quotation or Sales Order Documents provided for this particular Product.  All parts and services 

provided for this Product must be made with Best Purging Systems Corporation (hereafter referred to as BEST) furnished or authorized 

service parts and by BEST Technicians or by a BEST authorized service provider.  Reference Quotation and Sales Order Documents for 

complete Terms and Conditions, including clauses regarding warranty extensions, safety certifications, trade certifications and insurance, 

special safety equipment and tools, required working conditions, warranty registration requirements, eligibility, exclusions and legal terms.

WARRANTY CONDITIONS:

 Subject to all terms and conditions herein, BEST extends a limited warranty against manufacturing defects 

and workmanship for all Product that is installed and operated by the Purchaser and/or Client in complete accordance with all instructions 

in the BEST Installation, Operation and Maintenance Manual in the United States, Canada and Mexico.  

WARRANTY TERM:

 The Base Limited Warranty period for Product is effective for Twelve (12 Months) from date of BEST Factory shipment. 

Upon proper registration of the Product by the Purchaser or Client within no more than Ninety (90) Days after BEST Factory shipment, a 

Registered Limited Warranty shall become effective and extend the warranty period to Twenty-Four (24) Months after date of shipment. 

Regardless of registration, the Commencement Date for either warranty period shall be the date of BEST Factory shipment, or under prior 

special written agreement at time of Product purchase, no greater than Ninety (90) Days after the BEST Factory shipment date. 

WARRANTY EXTENSIONS:

 An extended warranty shall extend the effective warranty based on the terms and conditions as negotiated 

at time of purchase. The purchase of site start-up services or site acceptance testing from BEST and/or their authorized service provider 

under contract to BEST shall alter the warranty Commencement Date of the Basic, Registered or Extended Warranty period to begin on 

the day after Client Acceptance of site start-up services or site acceptance testing. 

TERM LIMITATION:

 The installation of Product replacement parts and/or the provision of any field service or troubleshooting services 

under this limited warranty shall not extend the effective warranty period. The warranty period for any supplemental installation of Product 

replacement parts and/or the provision of any field service or troubleshooting services under this limited warranty shall therefore be 

applicable only during the warranty period remaining under the effective Product Warranty. 

WARRANTY COVERAGE:

 The Base Limited Warranty covers all necessary parts and labor during the first Twelve (12) Months or up 

to Twenty-Four (24) Months after date of shipment if product is registered in accordance with this warranty.  Under either warranty term, 

the warranty shall be effective to resolve any validated defect in parts and/or workmanship and is provided exclusively for the Purchaser 

during integration and the Client upon delivery to the site of installation and use. Warranty is transferable from Purchaser to Client and 

shall be in full effect and force during any hold over, commissioning or factory acceptance testing of Product regardless of whether Product 

is operational or at installation site, except according to terms stated below under Registration Requirements.   

WARRANTY REPAIR SERVICES:

 BEST may request proof of Product purchase and/or installation in order to provide Product parts and 

service under this limited warranty. As BEST’s only responsibility and Purchaser and Client’s only remedy under this limited warranty, 

BEST will furnish all necessary labor and/or replacement parts in accordance with Warranty Coverage Terms above, whether provided 

by BEST or an authorized service provider acting on BEST’s behalf, without charge for the labor and/or parts, to repair any Product that 

fails due to a manufacturing defect under normal use and maintenance. If a replacement part is not available at time of warranty service, 

BEST may, at its option and sole discretion, provide a suitable replacement product. If Client selects unit repair at the BEST factory, the 

client shall be responsible for freight to BEST, and BEST shall be responsible for cost of standard non-expedited freight back to client, 

whereas client shall pay the difference for expedited freight if requested. 

NON-WARRANTY SERVICES:

 All non-warranted parts provided and/or non-warranted services incurred during a warranty serviced 

event at the request of the Purchaser or Client shall be provided at Purchaser or Client’s sole cost and expense.  BEST reserves the right 

to require a Purchase Order from the Purchaser or Client prior to accommodating any non-warranty services, and will require binding 

estimates for services from all BEST certified contractors where and when possible or required. 

Summary of Contents for YZ102

Page 1: ...ual BPS YZ102 IOM R1 0 9 18 Copyright 2018 Best Purging Systems Corporation All Rights Reserved Model YZ102 CI W or B V With Pressure Switch shown w Mounting Flange Model YZ102 CI W or B H With Pressure Switch shown w Mounting Flange Model YZ102 CI L U Less Pressure Switch shown w Mounting Flange ...

Page 2: ...NOT intended for dilution applications Please consult factory for more information A copy of this manual must be read and retained by the operator of this unit User s agent s are responsible for transferring this manual to the user prior to installation and start up This unit must be installed and operated per this manual The Authority Having Jurisdiction should be advised before installation of t...

Page 3: ...fying Your Unit Major Components List Filter Regulator Enclosure Pressure Valve Purge Valve Purge Press Indicator Enclosure Press Indicator Optional Pressure Loss Alarm Enclosure Warning Label EWL 1 General Information All electrical connections of the protected enclosure and purge unit must be performed by trained and knowledgeable personnel In addition all connections must be installed in accord...

Page 4: ...e 5 Multiple Protected Enclosures must be purged in series and should be connected from the smallest to the largest enclosure 6 Enclosure Supply connections between multiple enclosures must be at least the diameter of the Purge vent exhaust 3 4 1 Protective Gas Supply Header Purge Unit Unit Supply 1 4 Tubing Protected Enclosure Purge Vent Model PV 2 Enclosure Supply 1 4 Tubing Enclosure Reference ...

Page 5: ...rol Valve Venturi Orifice Model YZ102 CI L U Universal Mount Less Pressure Switch Rear View Model YZ102 CI W or B V Vertical Mount With Pressure Switch Rear View Typical Pneumatic Flow Diagram Denotes Customer Supplied Tubing Required Purge Vent Enclosure Pressure Gauge Optional EXP Pressure Switch Purge Injection Pressure Gauge Enclosure Warning Label Protected Enclosure Enclosure Supply Enclosur...

Page 6: ...nt Purge Vent 2 5 6 5 Model YZ102 CI W or B Side View C L 4 3 5 Model YZ102 CI W or B Mounting Flange YZ102 CI L U Side View C L 4 1 75 12 Universal Mounting Flange Model YZ102 CI W or B V Front View Model YZ102 CI L U Front View 12 11 5 11 5 12 0 25 Typ 8 0 5 6 6 12 11 5 15 75 0 5 16 25 8 125 0 25 Typ 6 15 75 8 125 11 11 5 0 5 16 25 0 25 Typ 6 0 625 12 4 0 3 375 0 25 Typ 8 11 375 10 3125 1 6875 0...

Page 7: ...nting flange dimensions and unit layout 5 Based on Enclosure Connection Requirements on page 4 drill and ream a 29 64 hole in protected enclosure install 1 4 Enclosure Supply Bulkhead fitting NOTE Protected Enclosure Supply should be installed at extreme opposite corner from part PV 2 Purge Vent and 8 from the Enclosure Reference Connection 6 Next drill and ream a 29 64 hole in protected enclosure...

Page 8: ...um 60 psi reading on Purge Injection Pressure Gauge adjust regulator if required 8 Close Purge Control Valve fully The Enclosure Pressure Indicator should return to a Safe 0 25 w c reading 9 Calculate total protected enclosure volume when empty Determine Purge Time required 5 minutes minimum Required Exchange Time Enclosure Volume 4 Volumes 1 minute per 1 0 cf 5 Volumes 1 minute per 0 8 cf 10 Mark...

Page 9: ...o off scale to the high side this is normal 6 Confirm a Min 60 psi on Purge Injection Pressure Gauge 7 Allow unit to purge protected enclosure for the required time marked on the Unit Start Up Instructions 5 minutes minimum Required Exchange Time Enclosure Volume 4 Volumes 1 minute per 1 0 cf 5 Volumes 1 minute per 0 8 cf 8 Upon completion of the required purge time close the Purge Control Valve f...

Page 10: ... to Twenty Four 24 Months after date of shipment Regardless of registration the Commencement Date for either warranty period shall be the date of BEST Factory shipment or under prior special written agreement at time of Product purchase no greater than Ninety 90 Days after the BEST Factory shipment date WARRANTY EXTENSIONS An extended warranty shall extend the effective warranty based on the terms...

Page 11: ... repair shipping damage or any other reason Please note that shipping damage must be claimed promptly with the carrier and is the responsibility of the recipient To procure an RMA number please contact Best Purging Systems Customer Service at 1 844 PURGE IT 787 4348 A Best Purging Systems Customer Service Associate will then work with you to resolve any problems with the Unit if at all possible an...

Page 12: ...onal Electrical Code NEC ANSI NFPA 70 2017 edition Standard for Purged And Pressurized Enclosures for Electrical Equipment ANSI NFPA 496 2017 edition Recommended Practice for the Classification of Flammable Liquids Gasses or Vapors and of Hazardous Classified Locations for Electrical Installations in Chemical Process Areas NFPA 497 2017 edition ANSI American National Standards Institute 11 West St...

Page 13: ...BPS YZ102 IOM R1 0 Page 13 of 14 2018 Best Purging Systems Corporation Maintenance Service Notes ...

Page 14: ...____ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Unit Identification Information Date of Installation __________________...

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