Transcript Standard 206-2013

Overview of different standards for
measuring and calculating SPF – How far
apart are we really?
Roger Nordman
SP Technical Research Institute of Sweden
Understanding of comparable HP systems’ performance
SEER
ASHRAE
206
SCOP
EN14511/
EN14825/
EN16147
APF
JIS C 9612
EXTERNAL
FACTORS
INTERNAL
FACTORS
SWOT: EN 14511
HELPFUL
HARMFUL
To achieving the objectives
To achieving the objectives
STRENGTHS
 The standard covers not only
capacity measurement but also
safety in operation
 Different temperature levels on
sink side provided
WEAKNESSES
 Capacity controlled heat pumps
are not covered
 Nominal capacity of capacity
controlled HPs is not clearly
defined
 Circulation pumps are included in
the testing procedure
 Broadly accepted and used also as
a basis for quality assurance
schemes (e.g. EHPA, ErP)
 Broadly accepted for different
funding programs in Europe
 Might change to an ISO standard
OPPORTUNITIES
 Large effort to modify and adapt
because referenced within a
variety of other standards
THREATS
SWOT: EN 14825
HELPFUL
HARMFUL
To achieving the objectives
To achieving the objectives
EXTERNAL
FACTORS
INTERNAL
FACTORS
STRENGTHS
 Different climatic conditions (3) are
considered
 Different temperature levels on the
sink side are accounted for in heating
mode and source temperatures on the
source side, respectively
 Transparent calculation method
 Auxiliary el. heating included
 Basis for the calculation of ErP
 Continuous improvement by the CEN
Committee
 International standard
 In-line with a number of other EN
standards such as EN 14511, EN
12309
OPPORTUNITIES




WEAKNESSES
Mandatory test points are not
clearly defined
Missing default values for auxiliary
operating hours and power
Not clear how to apply
Only for heating applications
 Might be misleadingly applied
THREATS
Standard 206-2013 -- Method of Testing for Rating of Multipurpose Heat
Pumps for Residential Space Conditioning and Water Heating (ANSI
Approved)
Task 3 & 6 Deliverable –
Approach
Wayne Reedy chaired the committee and Bill Craddick acted as secretary.
Standard 206 Is an extension of and consistent with:
ANSI/ASHRAE Standard 37
ANSI/ASHRAE Standard 116 AHRI Standard 210/240
ANSI/AHRI/ASHRAE ISO Standard 13256-1
AHRI Standard 870
ANSI/ASHRAE Standard 118.2
Standard 206 replaced:
ANSI/ASHRAE Standard 137
and various waivers from DOEs Central Air Conditioner and Central Air
Conditioning Heat Pump Test Procedure
Status Task 3 & 6 Deliverable –
Approach, cont’d.
Standard 206 addresses air-source, water-source, ground water-source, groundsource closed loop, and direct geoexchange units for single-capacity, dualcapacity, and variable-capacity equipment.
Provides for up to 7 modes of equipment operation
Space conditioning only
Dedicated water heating
Dehumidification+space conditioning
Dehumidification
Space conditioning+water heating
Dehumidification+space conditioning+water heating
Dehumidification+water heating
Status Task 3 & 6 Deliverable –
Approach, cont’d.
The standard method of test supports metrics for integrated appliances that
allow easy comparison to metrics for individual appliances:
For Air Source Equipment:
SEERca; HSPFca; EFca
For Ground or Water Source Equipment:
EERca; COPca; EFca
“ca” = combined appliance, referring to values for the integrated appliance,
rather than the comparable metric for a standard appliance
Status Task 3 & 6 Deliverable
• Draft test standard completed and approved for public review by the
committee in December, 2012
• ASHRAE approved release for public review in January, 2013.
– Annex 39 members provided links to download copy of draft standard
• Review Period: 3/15 - 4/29/2013
– No comments received
– ASHRAE prepared Standard 206 for official release later 2013, nosw
released!
Status Task 3 & 6 Deliverable –
Standard 206 Next Steps and Future
Plans
The ASHRAE committee is required to respond to every
comment submitted during the public review period. In this
case since no comments were received the draft standard is
now being processed by ASHRAE for publication.
Efforts will then be made to engage and collaborate with
AHRI to generate a rating standard for multifunction (or
integrated) heat pump systems based on the test standard.
Harmonisation or local initiatives?
The work in annex 39 have showed that:
• The difference in test points in different regions doesn’t differ a lot, but
timing between revisions is a threshold to harmonisation
• Harmonisation could instead happen on ISO level,
• Harmonisation could be made on test points, but there must me room for
local variations, especially regarding climatic conditions and building
demand profiles.
THANK YOU!
WHO WILL HAVE THE FIRST QUESTION?