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RHI Training Voucher Scheme. Acknowledgements:. The Renewable H eat I ncentive T raining S upport S cheme gratefully acknowledges the help of BEAMA and in particular the following member companies: Daikin Glen Dimplex Vaillant - PowerPoint PPT Presentation

TRANSCRIPT

Page 1: RHI Training Voucher  Scheme

RHI Training Voucher Scheme

Page 2: RHI Training Voucher  Scheme

The Renewable Heat Incentive Training Support Scheme gratefully acknowledges the help of BEAMA and in particular the following member companies:

Daikin Glen Dimplex Vaillant

The following presentation slides highlight some important changes to the MCS standards and reinforce some areas that, whilst are not new, are areas that can be easily overlooked.

Acknowledgements:

Page 3: RHI Training Voucher  Scheme

Objective – CPD to ensure heat pump training is being delivered to the latest version of MIS3005

4.2 – Design and Installation• The following principles shall be met when designing, specifying and installing

heat pump systems• Trainers should be able explain the design calculation method used in

Appendix E and complete the MCS Heat Pump Compliance Certificate, taking particular note of the guidance notes

• Manufacturers tools may be used to provided the Compliance Certificate as an output from the MIS 3005 tool

• Trainers should be able to explain the importance of considering the effects of any up lift factors or considerations such as

MIS 3005 V4.0

Page 4: RHI Training Voucher  Scheme

Updates to MIS3005 V4.0

MIS Clause Trainer Candidate How

4.2.1/4.2.1b Shall demonstrate heat loss off one room to EN12831

Shall complete heat loss of one room to EN12831 and understand the effect of incorrect material and increase room temperatures

Use manufacturers heat loss tool and information from a drawing, three examples to be completeda) Cavity wall, double glazed and 21oCb) Solid wall, single glazed and 21oCc) Solid wall, single glazed and 23oC

4.2.1a Shall demonstrate the difference peak heat requirements when intermittent and night set back are applied

Shall be given heat loss of a property to EN12831 and apply intermittent heating and night set back and understand the increase in energy and cost

Use manufacturers heat loss tool to calculate increase in energy and costd) Add 3oC night set back ( 4 hour reheat)e) Modify example (d) to 1 hour reheat

4.2.13 Shall demonstrate the importance of using the water exiting from the heat pump and the value to use for the star rating

Shall be given heat loss of a property to EN12831 and modify the emitter systems and understand the increase in energy and cost (using HEG)

Use manufacturers heat loss tool to calculate increase in energy and costf) Calculate energy and cost with Radiator 50oC systemg) Calculate energy and cost with UFH 35oC systemh) Calculate energy and cost with mixed Radiator and UFH

4.2 Shall demonstrate journey through Appendix E

Shall use manufacturers tools cross referencing Appendix E and produce compliance certificate output

i)Use manufacturers heat loss tool to calculate to generate heat pump compliance certificate , input Appendix E f)Complete example of RHI calculations in Appendix E

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What are Permitted Development Rights?

Overview of Permitted Development Rights across the UK

MCS 020 – Planning Standard

Internal Use 5

Permitted Development Rights

Page 6: RHI Training Voucher  Scheme

What are Permitted Development Rights?

Internal Use 6

Permitted Development Rights allow homeowners to make certain types of minor changes to their house without needing

to apply for planning permission

Certain types of renewable energy technologies are covered

Different rules in the four Home Nations

Always consult your local planning authority for guidance

Permitted Development Rights (and planning permission) do not provide protection against enforcement action under other legislation

Page 7: RHI Training Voucher  Scheme

Permitted Development Rights – Wales and Northern Ireland

Internal Use 7

Currently – planning permission is required to install a domestic ASHP

In Wales: Welsh Government has sanctioned drafting of

legislation to extend permitted development rights to domestic ASHP

No decision made by National Assembly of Wales yet

Lobbying ongoing to promote a consistent approach to that in England

In Northern Ireland: No legislation is planned for the near future

Page 8: RHI Training Voucher  Scheme

Permitted Development Rights – Scotland

Internal Use 8

Only one ASHP can be installed

Must be >100m from the curtilage of another dwelling

If in a conservation area, ASHP must not be visible from a road

Must not be in a World Heritage Site or listed building

Must consult planning authority to see if approval is needed for the siting and appearance of the ASHP

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Permitted Development Rights – England

Internal Use 9

Came into force on 1st December 2011

Installation must comply with MCS 020

Only one ASHP can be installed

No wind turbine at the property

Heat pump used solely for heating (and DHW)

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Permitted Development Rights – England

Internal Use 10

Outdoor unit must not be: > 0.6m³ in volume Within 1m of property boundary or the

edge of a flat roof On a pitched roof On a site designated as a scheduled

monument or a listed building On a wall that fronts the highway Above the level of ground storey

Additional rules for conservation area and World Heritage Site

Contact your local planning authority

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MCS 020 Planning Standard

Internal Use 11

Must be complied with if ASHP is to be permitted development

Installation company has the responsibility to ensure compliance with MCS 020

Calculations can be checked by the MCS Certification Body and the local planning authority

Both the product and the installer must be MCS accredited

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MCS 020 Planning Standard

Internal Use 12

Calculation procedure to determine whether the permitted development noise limit of 42 dB LAeq,5mins is met at the assessment position

Installer needs to know: A-weighted sound power level of the heat pump Number of reflecting surfaces within one metre of the

heat pump Distance from heat pump to the assessment position If there is a solid barrier between the heat pump and

the assessment position

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Habitable room is a room other than a bathroom, shower room, water

closet or kitchen

MCS 020 – Assessment position

Internal Use 13

Keep detailed notes of the assessment position e.g. address, sketch, etc.

Assessment position is 1m away from the centre point of any doors/windows in the neighbour’s nearest habitable room

1m

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MCS 020 – Calculation Procedure

Internal Use 14

Obtain the A-weighted sound power level of the heatpump from the manufacturer

The highest sound power level specified should be used (“low noise mode” should not be used)

STEP 1

Example: Manufacturer’s data states the sound power

level is 55 dB(A)

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MCS 020 – Calculation Procedure

Internal Use 15

Establish the directivity “Q” of the heat pump noise i.e. how many reflective surfaces (including the ground) are within 1 metre of the heat pump

STEP 2

Directivity ‘Q’ = Reflective Surfaces

2 = Freestanding4 = One Surface8 = Two Surfaces

Example: Heat pump is to be installed on the ground against a single wall => the

directivity (Q) of the heat pump noise is Q4

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MCS 020 – Calculation Procedure

Internal Use 16

Measure distance from heat pump to the assessment position

STEP 3

Assessment positionA position one metre external to the centre point of any door or

window to a habitable room of a neighbouring property measured perpendicular to the plane of the door or window

Example: Distance between heat pump and assessment

position is 4 metres

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MCS 020 – Calculation Procedure

Internal Use 17

Obtain dB reduction value (relative to distance and reflective surfaces)

STEP 4

Example: At 4 metres, Q4 =

Distance from Heat Pump (metres) (STEP 3 RESULT)

1 1.5 2 3 4 5 6 8 10 12 15 20 25 30

Q (Step 2 Result)

2 -8 -11 -14 -17 -20 -21 -23 -26 -28 -29 -31 -34 -36 -37

4 -5 -8 -11 -14 -17 -19 -20 -23 -25 -26 -28 -31 -33 -34

8 -2 -5 -8 -11 -14 -16 -17 -20 -22 -23 -25 -28 -30 -31

-17 dB

-17

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MCS 020 – Calculation Procedure

Establish whether there is a solid barrier between the heat pump and the assessment position to obtain an attenuation value

STEP 5

a) For a solid barrier (e.g. brick wall or fence) that completely obscures an installer’s vision of an assessment position from the top edge of the ASHP

-10

b) Where a solid barrier completely obscures an installer’s vision of an assessment position from the top or side edges of the ASHP, but moving a maximum distance of 25cm in any direction to the ASHP allows an assessment position to be seen

-5

a) For a solid barrier (e.g. brick wall or fence) that completely obscures an installer’s vision of an assessment position from the top edge of the ASHP

0

Internal Use 18

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MCS 020 – Calculation Procedure

Internal Use 19

Calculate the sound pressure level from the heat pump at the assessment position

STEP 6

Example:

Sound pressure level at assessment position = (STEP 1) + (STEP 4) + (STEP 5)

= (55) + (-17) + (-5)= 55 - 17 - 5= 33dB (A) Lp

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MCS 020 – Calculation Procedure

Internal Use 20

Determine the background noise level

STEP 7

For MCS 020, the background noise level in all locations is always assumed to be 40 dB(A) Lp

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MCS 020 – Calculation Procedure

Internal Use 21

Calculate the difference between background noise level (Step 7) and the heat pump sound pressure level at the assessment position (Step 6)

STEP 8

Difference:

= (STEP 7) – (STEP 6)

Example: = 40 dB(A) – 33 dB(A) = 7dB(A)

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22

MCS 020 – Calculation Procedure

STEP 9

Obtain the decibel correction figure based on result from Step 8 Add this to whichever is the higher dB figure from STEP 6 and STEP 7Round this number up to the nearest whole number

Difference between the two noise levels (dB) (+/-)

Add this correction to the higher noise level

0 31 2.52 2.13 1.84 1.55 1.26 17 0.88 0.69 0.5

10 0.411 0.312 0.313 0.214 0.215 0.1

Example:

Step 8 = 7dBa Decibel correction = 0.8 dB Step 6 = 33dbA Step 7 = 40 dB(A) Corrected noise = 40.8 dB(A) Round up to 41 dB(A)

Internal Use 22

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MCS 020 – Calculation Procedure

Is the FINAL RESULT (step 9) lower than the permitted development noise limit of 42 dB(A)?

STEP 10

YESThe ASHP will comply with the permitted development noise limit for this assessment position and may be permitted development (subject to compliance with other permitted development limitations/conditions and parts of this standard). NOTE - Other assessment positions may also need to be tested.

NOThe ASHP will not be permitted development. Installation may still go ahead if planning permission is granted by the local planning authority.

Internal Use 23

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Sound calculation tools are available from many manufacturers

Internal Use 24

Designed to assist installers to assess the noise level from a

given manufacturers ASHP

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Summary

Internal Use 25

Planning permission is required for ASHP in Wales and Northern Ireland

Permitted Development Rights exist in Scotland and England Different assessment criteria in both countries If the criteria is met, planning permission is not

required

In England, MCS installer must calculate noise limit based on MCS 020 Calculated at a specified assessment position – 1m

away from the window/door of a neighbouring property

Calculated figure must be less than 42 dB LAeq, 5mins

Always check with the local planning office

Page 26: RHI Training Voucher  Scheme

Insert title herePresented by: XXXXXX

Heat Emitter Guide MCS 021

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Heat Emitter Guide is an integral component of the MCS assessment and forms the basis for estimating RHI income

Officially an MCS document [MCS 021]

Originally created by joint trade associations for use with MIS 3005

Can be used for existing emitter systems and new installations

Introduction

27

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A tool to aid installers and end users to understand the relationship between flow temperature and SPF

MCS heat pump installer must communicate with the heat emitter designer to optimise the design of both systems

HEG is not a detailed design tool. Intended to stimulate a proper review of the dwelling-specific heat load and heat emitter design, leading to optimised performance and low running costs

The “Heat Emitter Guide” is not a substitute for accurate site-specific design carried out in accordance with national standards

Heat Emitter Guide [HEG]

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Before the customer signs the contract, the installer shall, in writing:• Make the customer aware of all specific room heat losses (in W/m2);• Identify the type of emitter(s) to be used in the system;• Make the customer aware of the design emitter temperature based on the

worst performing room;• Agree with the customer the “Temperature Star Rating” for the design

emitter temperature, also making clear the maximum achievable “Temperature Star Rating”.

Additionally, before the customer signs the contract, the installer should:• Show the customer a relevant extract of the Heat Emitter Guide;• Explain the Heat Emitter Guide, including how it is possible to achieve a

higher system SPF;• Explain how the design emitter temperature will be achieved using the type of

emitter selected.

Important notes for MCS installers

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Always design for the water flow temperature to be as low as possible to:• Achieve the highest possible SPF• Achieve the lowest possible running costs and CO2 emissions

New build properties – heating distribution system can be designed to work efficiently at the low water flow temperatures produced by a heat pump

Existing building – will existing heat emitters output sufficient heat at the lower flow temperature of the heat pump?• Check by calculation and by using the Heat Emitter Guide• Reduce the heat losses. It might then be possible to run heat emitters at a

lower temp• Change heat emitters e.g. increase size of radiators, install fan coil units/heat

pump convectors• If heat loss cannot be reduced and heat emitters cannot be changed, consider

a bivalent heat pump / boiler system instead

Selecting heat emitters for heat pump systems

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1. For every room calculate the heat loss.

2. For a system with radiators, determine the rated output at mean water to air temperature difference of 50°C using Tables of Heat Emitter Outputs (available separately).

3. Divide the rated output by room heat loss.

4. Determine the radiator Oversize Factor for each room.

5. Determine the Temperature Star Rating for each room.

6. For every room:• check the room specific heat loss

(W/m2); • use the Guidance Table and colour

coding to check that the emitter and flow temperature is suitable.

HEG – procedure for existing systems

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For every room, divide the radiator rated output by the room heat loss to determine the Oversize Factor

For every room, use this table to determine the Temperature Star Rating

Oversize Factor for each room heated by radiators

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The Temperature Star Rating indicates the likely system efficiency based on the worst performing room and flow temperature from the heat pump prior to any blending valves

HEG – Temperature Star Rating

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Achieving a higher Temperature Star Rating

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Heat pump operating SPF is limited by the worst performing room

For the worst performing room, use the Temperature Star Rating to confirm the GSHP or ASHP likely space heating SPF

• This is the likely performance of the whole system

The likely space heating SPF is used for RHI PURPOSES

For RHI, the likely SPF must be 2.5 or over. For ASHP, this equates to minimum SPF 2.7 with a maximum flow temperature of 50°C

HEG – likely space heating SPF for RHI purposes

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Guidance Table

For every room - - check the room specific heat loss

(W/m2)- use the Guidance Table to check that

the emitter and flow temperature is suitable

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Flow temp at peak design conditions

Nominal SPF assumes weather compensation and excludes DHW provision

< 30 W/m2

30-50 W/m2

50-80 W/m2

80-100 W/m2

100-120 W/m2

120-150 W/m2

Temperature Star Rating indicates efficiency – 6 stars is most efficient

Oversize factor x room heat loss = required emitter output at (MWT – AT) of 50

Typical UFH pipe spacing for screed systems

Typical UFH pipe spacing for aluminium panel systems

37

Guidance Table in detail

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Colour coding

Page 39: RHI Training Voucher  Scheme

HEG calculation example #1

An example of a poorly-insulated room is assumed to be in London (design outside air temperature = -1.8°C) with single glazing. The heating is assumed to be used continuously

Room heat loss: 1671W Size of existing radiator: 1600mm L, 700mm H, 103mm D (double panel) Existing radiator rated output at MW-AT at 50°C = 1938W Calculate the Oversize Factor and look up the Temperature Star Rating on the chart Oversize factor: 1938/1671 = 1.2 Temperature Star Rating: [no stars] Radiator flow temperature: > 60°C

Note that this system would not be eligible for RHI

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HEG calculation example #2 – Reduce the energy losses

Reducing the fabric and ventilation heat loss is an efficient way of increasing the Temperature Star Rating. It reduces energy consumption and improves the system efficiency. Always consider reducing heat losses when making changes to a house.

In this example, external walls have cavity wall insulation added, windows are replaced with A-rated double glazing, 50mm of underfloor insulation is added, and the room is carefully draught-proofed to reduce the heat loss.

Improved room heat loss: 976W New oversize factor: 1938/976 = 2.0 New Temperature Star Rating: 2 stars Radiator flow temperature: 55°C Likely GSHP heating SPF: 3.1 Likely ASHP heating SPF: 2.4

Note that an ASHP in this system would not be eligible for RHI

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HEG calculation example #3 – Upsize the radiators

Upgrading the existing radiator to one that has a higher rated output is another way of increasing the Temperature Star Rating:

Size of new radiator: 1600mm L, 700mm H, 135mm D (this is a double convector with the same frontal area as the existing radiator)

New radiator rated output: 3269W New oversize factor: 3269/1671 = 2.0 New Temperature Star Rating: 2 stars Radiator flow temperature: 55°C Likely GSHP heating SPF: 3.1 Likely ASHP heating SPF: 2.4

Note that an ASHP in this system would not be eligible for RHI

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HEG calculation example #4 – reduce heat losses and upsize radiators

The two previous examples can be combined to produce a more efficient installation

Improved room heat loss: 976W New radiator rated output: 3269W New oversize factor: 3269/976 = 3.4 New Temperature Star Rating: 4 stars Radiator flow temperature: 45°C Likely GSHP heating SPF: 3.7 Likely ASHP heating SPF: 3.0

Note that an ASHP in this system would be eligible for RHI

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Typical flow temperature ranges

Low temperature ASHP 25°C-55°C

Typical boiler 55°C-80°C

Radiators typical design mean water temperature of 70°C

Flow temperatures and radiators

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Mean Water Temperature MWT = (flow temperature + return temperature)/ 2• Note : For many heat pump systems, the difference between flow and return

temperature is often 5°C• For a typical heat pump system with a design flow temperature of 45°C, the

return temperature would be 40°C and the Mean Water Temperature would be 42.5°C

The Heat Emitter Guide asks installers to calculate output of radiators at a Mean Water to Air Temperature difference of 50°C

Mean Water to Air Temperature difference = MWT – room air temperature• For a typical heat pump system as above, with design room air temperature

of 21°C• Mean Water to Air Temperature difference = 22.5°C

What is Mean Water Temperature?

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Radiator Correction factors

MWT-AT Factor

5°C 0.050

10°C 0.123

15°C 0.209

20°C 0.304

25°C 0.406

30°C 0.515

35°C 0.628

40°C 0.748

45°C 0.872

50°C 1.000

Typical radiator data is given at 75/65/20 (flow/return/room air temps) Table shows radiator sizing factors at different MWT-AT with AT at 20°C Mean Water Temperature = 70°C The difference between the mean water temperature and the room air

temperature dT = 50°C (i.e. 70°C-20°C=50°C). The correction factor is 1

For a heat pump, the typical water flow temperature is up to about 55°C. Table below shows correction factors for typical conditions with heat

pump. A higher water flow temperature increases the correction factor and

reduces the size of radiator required BUT will reduce heat pump efficiency. The correction factor for the chosen operating conditions is then applied to

the manufacturers data at 75/65/20 to give the output of the radiator at the lower water flow temperature.

Design condition dT (MWT-AT) Correction factor

55/50/20 32.5 0.572

50/45/20 27.5 0.461

45/40/20 22.5 0.355

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46

1

2

3

Radiator Correction factors

46

Design condition dT (MWT-AT) Correction factor Output needed (W)

55/50/20 32.5 0.572 1748 [1]

50/45/20 27.5 0.461 2169 [2]

45/40/20 22.5 0.355 2817 [3]

Example – room heat loss is 1000W. Existing radiator provides 1028W at 75/65/20. Room heat loss is divided by correction factor to size radiator at each flow condition.

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Example table of Heat Emitter Outputs

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If it is possible to use the existing radiators then always consider:

• Flushing and cleaning the entire heating distribution system to remove as much sludge deposits as possible e.g. power flushing, chemically cleaning– Be aware that this may now expose small holes in the pipework of

old systems

• Installing an additional dirt separator / filter on the return to the heat pump to reduce the amount of sludge entering the heat exchanger

Radiators – using existing system

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Underfloor heating – design considerations

Factors affecting the heat output from underfloor heating include:• Type of floor construction e.g. solid concrete or timber suspended• Amount of insulation installed underneath the pipework – as much as possible!• Floor covering e.g. tiles conduct heat better than carpet which acts as an insulator

To maximise performance of the heat pump:• Keep flow temperatures as low as possible• Ensure delta T between flow and return is in line with the heat pump requirements

Typically with a heat pump running at 40°C, the maximum output from the UFH in a room with a fitted carpet is 53W/m²

Pump mixing sets on underfloor heating manifolds:• Try and avoid blending valves and mixing sets with low temperature heat pumps • Where installed, the pump will need to be interlocked with the integral circulation

pump to ensure simultaneous operation, or a low loss header/buffer tank must be installed

Recommend that a detailed system design is carried out by the underfloor heating manufacturer

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Example Heat loss Calculations and the application of intermittent use factors

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a) Cavity wall, double glazed and 21oC

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b) Solid wall, single glazed and 21oC

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c) Solid wall, single glazed and 23oC

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MIS 3005 V4.0 - 4.2.1aIntermittent and night set back effects

Heat loss calculation should be completed to using a method that complies with EN 12831. The following should be considered-

• Intermittent and continuous heating

• Using MIS 3005 a living room of a pre 2000 property has a heat loss of 1564W.

• The figure is calculated using continuous heating.

• If a 3oC night set back is applied and a reheat of 4 hours the peak heat demand increases to 1795W - an increase of 13%.

• If the reheat time is now one hour then the peak heat demand is 2365W and total increase of 34%

• On a property of 80m2 this can increase the space heating power from 6.1kW to 9.7kW and the kWh from 15601 to 24884

• Increasing electrical energy used from 5200kWh to 8295kWh (using SPF of 3)

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Heat Pump Compliance Certificate 2. Purpose of installationMIS 3005 V4.0 - 4.2.1a

• Total energy required by the house 24884kWh (with 1 hour reheat and 3oC night set back)

• Using MCS021 MIS3005 4.2.10 – 4.2.12

• 35oC temperature 6 star system an AWHP will give a SPF of 3.6• Electrical energy used 6912kWh (using SPF of 3.6)• £898 (13p)

• 45oC temperature 4 star system an AWHP will give a SPF of 3• NB. 2 star systems are not eligible for RHI as SPF is less than RES 2.5• Electrical energy used 8295kWh (using SPF of 3)• £1078 (13p)

• 50oC temperature 3 star system an AWHP will give a SPF of 2.7• NB. 2 star systems are not eligible for RHI as SPF is less than RES 2.5• Electrical energy used 9216kWh (using SPF of 2.7)• £1198 (13p)

• If a mixed radiator and UFH system is used and the radiator requires 50oC and the UFH is mixed down to 45oC, then the temperature leaving the heat pump will be 50oC therefore SPF is 2.7 and the system reduced to 3 stars

• Electrical energy used 9216kWh (using SPF of 2.7)• £1198

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Effects of not considering uplift

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Appendix E RHI calculation

12,000kWh

3,00kWh

1

1

12,000 x 1 + 3,000 x 1 = 15,000

2.7 9444

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DHW Calculator – Adjusting volume to suit lower thantypical storage temperatures

65°C 8°C

FINAL TEMP

35°C

FINAL VOLUME

380ltr

VOL DELIVERED @ OUTLET TEMP

STORED COLD FEED65°C 8°C

180ltr• Stored DHW temperature• Cylinder or requirement

volume• Inlet cold water temperature• Required delivery

temperature

• The final delivery volume will be calculated

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At storage temperature of 65 C ⁰and inlet temperature is 8 C⁰• Based on BS EN 3900• DHW required is based on

number of bedrooms + 1 • For a 3-bedroom property• 3 + 1 = 4• From BS EN 3900 and based

on rooms, 45ltrs is required @ 65 C ⁰

• 4 x 45ltr = 180ltrs required• Delivery temperature of, say,

35 C⁰• Total volume available would

be 380ltrs

DHW 65 C Example⁰

65C 8C

35C

8C

180LTR

65C

Delivery Volume380 ltr

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DHW 45 C Example ⁰

45C 8C

35C

8C

280LTR

If heat pump can only achieve DHW storage temperature of 45 C and inlet temperature is ⁰8 C. ⁰End user would still require 380lts to meet with the standard.

• DHW required based on number of bedrooms + 1

• For a 3-bedroom property• 3 + 1 = 4• Total volume available needs

to be approximately the same as at 65 C = 380ltrs⁰

• 280ltr of stored DHW water is required at 45 C to delivers ⁰384ltrs @ 35 C⁰

Delivery Volume384 ltr

45C

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DHW Comparisons

45°C 8°C

FINAL TEMP

35°C

FINAL VOLUME

384ltr

VOL DELIVERED @ OUTLET TEMP

STORED COLD FEED45°C 8°C

280ltr

65°C 8°C

FINAL TEMP

35°C

FINAL VOLUME

380ltr

VOL DELIVERED @ OUTLET TEMP

STORED COLD FEED65°C 8°C

180ltr

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Controls Handover and Label

Ensuring costs are transparent

Customers should be made aware of the estimated annual cost of electricity to operate the heat pump.

This means:

Where the number of collectors or emitter circulation pumps exceeds two or the run hours of the heat pump, the electricity costs associated with the operation of the collector and emitter pumps should be calculated.

Refer to section 4.3.1

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Controls Handover and Label

Compliance Certificate Requirements

The Contractor should explain how the controls have been set to ensure the system operates at a temperature no higher than TFSH

(ie the temperature of the water leaving the heat pump to supply space heating)

Record the controls used and the control settings

Attach a label (close to the heat pump) to show the water temperature TFSH and required control settings

This label is featured in MIS3005 v.4 and

can be marked by the installer

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MIS 3005 v.4 (section 4.2.9)The Contractor shall ensure that supply is adequate and ensure that the necessary permissions to connect to the electricity grid are obtained by the client.

NOTE: Where relevant heat pump connection forms are available from the MCS website www.microgenerationcertification.org.

MCS 3007 (section 8.3.1)Manufacturers shall make available to Installers and the Certification Body the completed heat pump Distribution Network Operator (DNO) connection forms with all relevant product data.

Notifying the Distribution Network Operator

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Notifying the Distribution Network Operator

Why Notify?

The DNO is required to ensure the integrity of local supply and this can be compromised if a ‘disturbing load’ is connected to the network

There are 3 forms (A, B and C) Form A is the highest level of harmonic, flicker performance, tested

to a high level of standard (EN 61000 -3-2 and EN 61000 – 3-3) Form B requires additional scrutiny by the DNO and is a level below

the highest standard Form C means the product has not been tested against harmonic

and flicker standards and may not be approved for connection

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Notifying the Distribution Network Operator

• The installer completes the form with the customer, noting other heat generating electrical capacity in the installation (e.g. Immersion)Note that this form attracts the fastest turnaround time for approval

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Notifying the Distribution Network Operator

• The manufacturer will be required to provide MCS with the relevant data for harmonics and flicker to complete this more complex formNote that this form attracts a longer turnaround time for approval

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Notifying the Distribution Network Operator

Important Points To Remember

• Do not connect a heat pump before approval as there may be a network upgrade charge which may in turn be passed to the customer

• Every DNO is now committed to using these forms and any other forms have been phased out

• The manufacturer will ALWAYS be able to help you with the required data but the installer will need to complete the form due to installation site variables

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Notifying the Distribution Network Operator

• The most complex of the 3 forms requiring power fluctuation data.Note that this form attracts the same turnaround time for approval as form B

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Metering – 3 types of metering

1 Meter ready

All installations must be meter ready

2Metering for

Payment

Bi-valent and hybrid systems, and

second homes must be metered

3 Monitoring

and Metering Service Package

Optional service provided by a third

party to householder

Internal Use Only

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All new systems must be ‘meter-ready’

Some installations will have DECC’s own metering equipment fitted.

‘Meter-ready’ includes: • Leaving sufficient space for heat meters• Installing isolation valves to avoid draining systems• Leaving pipework accessible• Providing information about the installation

Legacy installations do not have to be meter ready

1. Meter ready

Internal Use Only

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Required where a heat pump or biomass boiler is installed….

…Alongside another fossil fuel system; or

…In a property that has been defined as a second home Also required for hybrid heat pump systems Number and location of meters will depend on the system

2. Metering for Payment

Objective: Measure the total heat output from the renewable heating system, including whatever components are practical to measure, and measure the energy input to the same components

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Heat Meters – Requirements • A flow meter, matched pair of temperature sensors

and a calculator• Within accuracy Class 3 or better

Electricity meters – Requirements• Within accuracy Class A

All meters must:-• Comply with Annex I of 2004 Measuring Instruments

Directive • Be installed by a competent, qualified and

registered person • Not be tampered with to affect meter readings

3. Requirements for meters

Internal Use Only

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This is optional A high-frequency (2-minute), high-resolution remote

metering service package Payment of £230 / year for heat pumps Package is assembled, installed and monitored by

installer, manufacturer or a third party (not DECC) to a defined specification

Purpose:- Provide customers with peace of mind their system is

working well; or evidence that it isn’t Enable installers to review their work To provide DECC with data as well

4. Monitoring and Metering Service Package

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Presentation complete!

Thank you for taking the time to go through this presentation.

We hope that you have found it useful and it aides you in the successful training of installers or installation of Heat pumps under the Domestic Renewable Heat Incentive scheme