Updates to ANSI/ASHRAE/ASHE Standard 170-2013 …ahcaseminar.com/AHCA 2015 PDF For Flash...
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Updates to ANSI/ASHRAE/ASHEStandard 170-2013Ventilation of Health Care Facilities
Chris P. Rousseau, PE, LEED AP
31st Annual AHCA Seminar and 53rd Annual FHEA Meeting Orlando, Florida October 12, 2015
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2008 Edition vs. 2013 Edition
• 2013 Edition addenda letters will start over with a
• Addenda to both editions are still available on the ASHRAE website
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Addenda – Overall Status
• 5 Addenda approved (a,b,d,e,ae)
• 5 Addenda in progress (ad,c,f,g,h)
• https://osr.ashrae.org/default.aspx
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Addendum ad
Status: Issued for 3rd public review
Topic: Exam rooms
a. Applies only to non-emergency department exam rooms.
b. Identifies two types of exam rooms:i. General – reduction in total air
change rate to 4.ii. Special – maintains total air
change rate of 6.
c. Special exam rooms are intended for spaces that might encounter persons with undiagnosed gastrointestinal, respiratory, or skin symptoms.
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Addendum c
Status: Issued for 3rd public review
Topic: Laboratory work areasa. Terminology coordinated with FGI –
“Laboratory Work Areas” vs. “Laboratories”
b. Reduction allowed via ANSI Z9.5 risk assessment or active sensing of contaminants or appropriate surrogates approach
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Addendum f
Status: Pending 2nd Public Review
Topic: Operating Room Air Distributiona. Provides a specific definition of the
primary supply diffuser array.
b. Clarifies that no more than 30% of the Primary Supply Diffuser Array may be used for non-diffuser items.
c. Additional diffusers may be located outside of the Primary Supply Diffuser Array if needed to achieve required environmental conditions or air change rates.
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Addendum g
Status: Pending PublicationTopic: Definitions of Operating & Procedure Rooms
a. Continues re-definition of ORs & Procedure Rooms included in the 2014 FGI Guidelines.
b. Deletes Class A, B, and C terminology and replaces with:
- Operating Room - Procedure Room
c. New definition of Operating Room is equivalent to Class B and C ORs previously.
d. New definition of Procedure Room is equivalent to Class A ORs previously.
e. Definition are included from 2014 FGI Guidelines for these spaces:
- Operating Room - Procedure Room- Invasive Procedure - Restricted Area
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Addendum h
Status: Pending Public Review
Topic: Temperature in Sterile Processing Department (SPD)
a. Disagreement between design (ASHRAE) and operational (AAMI) standards.
b. Joint meeting with ASHRAE, AAMI, FGI, ASHE, AORN, and APIC April 2015.
c. Agreed on temperature ranges for 3 spaces:Decontamination Room 60°F-73°FClean Workroom 68°F-73°FSterile Storage Max 75°F
d. Reference to AAMI ST-79.
e. Published joint interim guidelines.
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Republication
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• November 2017
• Part of 2018 Guidelines
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Coordination Efforts
Coordination Efforts – Paul Ninomura
• Standard 55
• Standard 62.1
• Standard 90.1
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• Joint ASHRAE/ASHE/FGI Literature Analysis
• Alternate compliance approach
• Walt Vernon• Michael Sheerin
FGI Research
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New FGI Guidelines Approach
• FGI 2018 will be three books:• Hospital• Outpatient• Residential
• 170 will be included in its entirety in each book
• Work underway to identify and organize requirements for each occupancy
• Outpatient – John Dombrowski• Residential – Steve Friedman
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Current Issues
• Clarification of inpatient and outpatient filtration requirements• Reduction of outpatient occupancy requirements• Reduction of air changes in unoccupied spaces• Clarification of “Recirculating Room HVAC Units”• Terminology and space name coordination with FGI• Residential healthcare requirements• Natural ventilation
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Future Issues
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• Patient room air distribution
• Air change rate reductions
• Outside air intake separation from exhaust
• Pharmacy requirements (USP 797 & 800)
• Anesthesia exhaust
• Air distribution terminology
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Updates to ANSI/ASHRAE/ASHEStandard 170-2013
Ventilation of Health Care Facilities
Chris P. Rousseau, PE, LEED AP
31st Annual AHCA Seminar and 53rd Annual FHEA Meeting Orlando, Florida
October 12, 2015