This webinar is an overview of the addition of Cooling Methodology / calculation in DEAP and timeline of event.

2. This event is being recorded
WebEx Housekeeping Slide
2 www.seai.ie
Attendees are muted with cameras off
Questions submitted by clicking Q&A bubble
Questions will be answered at end of event
An FAQ will be created from all questions submitted and shared
A recording and slides will be distributed after the event

3. Including BER publication process and other DEAP4 interface changes.
April 26th 2022
Antonella Uras
David Bevan
Marcin Badurek
Cooling calculations in
Domestic BER and
DEAP4 inputs.

4. Speaker
Antonella Uras
Cooling calculations in
Domestic BER

5. • Primary energy and CO2 emissions from cooling equipment
• Required by the EPBD
“The energy performance certificate should also provide information
about the actual impact of heating and cooling on the energy needs of
the building, on its primary energy consumption and on its carbon
dioxide emissions.”
• Already present in Non-Domestic (SBEM)
• Risk of overheating depending on design
Air-tightness
Heat gains (e.g. uninsulated DHW pipes, etc)
• Improved design rather than air-conditioning
Cross-ventilation
Windows free area
Orientation
Glazing
Shading
Thermal mass
MV
Cooling calculations in Domestic BER - Background
5 www.seai.ie
Source: SEAI Energy in the Residential Sector

6. • Air-conditioning installations still uncommon in dwellings
• Avoiding multiple inputs
• Existing information, data and calculations
• Summer months (Jun-Aug)
• Assumes house is cooled intermittently (6 hours a day)
• Monthly calculations
Heat loss rate
Internal gains
Space cooling load
• Energy for cooling based on SEER*
• 𝑆𝐸𝐸𝑅 =
𝐶𝑜𝑜𝑙𝑖𝑛𝑔 𝑜𝑢𝑡𝑝𝑢𝑡 𝑜𝑓 𝑎𝑖𝑟 𝑐𝑜𝑛𝑑𝑖𝑡𝑖𝑜𝑛𝑖𝑛𝑔 𝑒𝑞𝑢𝑖𝑝𝑚𝑒𝑛𝑡
𝐸𝑛𝑒𝑟𝑔𝑦 𝑖𝑛𝑝𝑢𝑡
*As provided in Ecodesign Product Information for air conditioners
Cooling calculations in Domestic BER - Outline
6 www.seai.ie
Source: The Guardian 2020

7. Cooling calculations in Domestic BER - Examples
7 www.seai.ie
Dwelling example
Impact on BER result (additional
kWh/m2/yr) after adding cooling
system
SEER = 2.16 SEER = 5.1
A2 rated newly built bungalow, well insulated,
very good air tightness, MHRV, south facing
windows
1.81 0.77
C3 rated regular mid floor apartment, built 1998 0.82 0.35
F rated pre-1977 uninsulated semi-detached
house, poor air tightness
0.05 0.02

8. Cooling calculations in Domestic BER - Timeline
8 www.seai.ie
Date
1st March 2022 Notification of upcoming changes to the DEAP methodology
Publication of draft DEAP Manual and Survey updates
Publication of draft DEAP Workbook
4th May 2022 DEAP methodology software is updated to include cooling
Updates to DEAP Manual, Survey and DEAP Workbook published
From this date, BER assessments can be published with cooling
From this date, DEAP can be used to check the impact of cooling on
BERs and Part L indicators
23rd September 2023 From this date on, when cooling is present, it must be accounted for when
publishing BERs
Where the construction of a new dwelling will be completed after this date,
cooling, if present, will need to be included in the Part L compliance
report.

9. Speaker
David Bevan
Identification of Cooling
Systems & Documentation

10. DEAP4 changes - overview
10 www.seai.ie
Identification of “–to-Air” systems
System types that can provide cooling
Non-default data - documentation

11. • …-to-Air heat pump systems
• e.g. an air-to-air heat pump
• These systems are assumed to be reversible and capable of providing Cooling
• Cooling can only be discounted for these systems where,
• Designer/Installer Form states that there is no Cooling function
and,
• The Designer/Installer specifies how Cooling has been disabled
• See DEAP Manual for more detail
Systems capable of Cooling
11 www.seai.ie

12. • …-to-Water heat pump systems
• i.e. systems using radiators and/or underfloor to distribute heat
• For these systems it is assumed there is no Cooling function
• Cooling should be included for these systems where,
• Designer/Installer Form states that there is a Cooling function
• See DEAP Manual for more detail
Systems capable of Cooling
12 www.seai.ie

13. • Multi-split system
• One external unit
• Multiple internal units
Identification of “…–to-Air” Systems
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14. • External unit
• Drawing heat from the surrounding air (for heating)
• Emitting heat to the surrounding air (cooling)
• Model identification important
Identification of “…–to-Air” Systems
14 www.seai.ie

15. • Wall unit – usually located high on the wall
• Capable of producing warm or cold air, depending on the season
• Fans to distribute the air efficiently
Identification of “–to-Air” Systems – Indoor units
15 www.seai.ie

16. • Wall unit – usually located low on the wall, like a radiator
• Capable of producing warm or cold air, depending on the season
• Fans to distribute the air efficiently
Identification of “–to-Air” Systems – Indoor units
16 www.seai.ie

17. • Cassette unit –located in the ceiling
• Very common in non-domestic scenarios – offices, shops – but can be found in dwellings too
• Capable of producing warm or cold air, depending on the season
• Fans to distribute the air efficiently
Identification of “–to-Air” Systems – Indoor units
17 www.seai.ie

18. • Example 1
Air-to-air as main heating system
• External heat pump unit
• Heating/cooling is being supplied to the dwelling
• Multiple internal units
• Providing heating/cooling to individual rooms
• No evidence of a wet system
• No radiators present
• None of the pipework associated with underfloor heating
Identification of “–to-Air” Systems
18 www.seai.ie

19. • Example 2
Wet system + Air-to-Air system
• An existing dwelling with a wet-system, e.g. boiler/heat pump heating radiators, and an air-
conditioning blower unit in one or more rooms, e.g.
• This is usually in a retrofit or an extension and may be intended to provide heating to a room(s)
• In this scenario, the unit can provide cooling, which would now be accounted for in the BER
Identification of “–to-Air” Systems
19 www.seai.ie

20. • The systems considered in DEAP are covered by
EU Regulation 206/2012: Ecodesign requirements for air conditioners and comfort fans,
EU Regulation 626/2011: Energy labelling of air conditioners
• The data required is the Seasonal Energy Efficiency Ratio of the cooling system -
SEER.
• Manufacturers/Suppliers must provide the following when placing the product on the
market
• Energy Label
• Product Fiche
• Technical Data
Non-default Data for Cooling Systems
20 www.seai.ie

21. • States Manufacturer & Model
• States SEER
• References EU Regulation
626/2011
Energy Label
21 www.seai.ie

22. • Normal rules apply regarding Ecodesign data,
e.g. Ecodesign data must reference the relevant EU Regulation, e.g. 626/2011
Product Fiche
22 www.seai.ie

23. Speaker
Marcin Badurek
Cooling Calculation entries
in DEAP4
Including BER publication process and other DEAP4 interface
changes.

24. DEAP4 changes - overview
24 www.seai.ie
Changes to the BER publication process
Cooling Calculation in DEAP4
Other changes to the DEAP4 interface

25. Cooling calculation
in DEAP4
- Can be added as a heat pump function
- Can be added as a separate system
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New “Cooling” icon added

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Cooling system added as a heat pump function

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Seasonal Energy Efficiency Ratio default value for “-to Air” heat pumps

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“Provides Cooling” check box

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Cooling systems tab

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Cooling added as a separate system

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Cooling added as a separate system – delete item

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Cooling in the Results

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Cooling system in the Dwelling Report

35. Questions?

36. Speaker
Marcin Badurek
Cooling Calculation entries
in DEAP4
Including BER publication process and other DEAP4 interface
changes.

37. Changes to the BER
publication process
- No need to log in to NAS
- BER published directly from DEAP4
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BER Publication process - overview

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Survey progress – 78% is required to unlock the AR

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Evidence added – progress to 89%

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BER Validation & Send to NAS. Status changed to “NYP”

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“NYP” Status could be reverted back to “In Progress” if needed

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Generate Advisory Report

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Generate Advisory Report

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Final publishing

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Final publishing

47. Download AR & BER Cert
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Allowing automatic downloads of multiple files in Chrome

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Allowing automatic downloads through Chrome settings:
Chrome settings -> Privacy and security -> Site settings, scroll down to Additional
permissions -> Automatic downloads

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Download button

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Changes in NAS – “Proceed” and “Discard” buttons removed

52. Other changes to DEAP4
interface
- View Assessment icon removed
- Assessment moved to Results
- “Include in compliance” check box added for floors and roofs
- MPRN and BER shown on the top ribbon
- “Remove all evidence” function added
- Changes to survey status
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Assessment moved to Results

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Assessment moved to Results

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Assessment moved to Results

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“Include in compliance” check box for roofs and floors

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MPRN and BER number added to the top ribbon

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Delete multiple or all items from the Evidence

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Changes to survey status
“In Progress” – can edit survey. “NYP”, “Published”, “Revoked” or “Withdrawn” – can copy survey

60. Thank you.
60