The MCS Standards Management Group (SMG) has prepared a guidance document (found below) to assist installers and the wider industry in understanding the intent of how the thresholds, set within each MCS Installation Standard for the heat technologies, shall be practically applied to design, installation and commissioning work under the MCS scheme.
This document has been prepared by the MCS SMG, taking into account the views of the industry to ensure that systems can be adequately designed and installed under the scheme, whilst reinforcing with installation companies the need to ensure they have the relevant competencies to undertake the tasks associated with these systems.
An MCS certified Installation Company should ensure they follow this guidance, and MCS reserves the right to amend the guidance as necessary through periodic review without prior notice.
The 70kWth threshold was noted by the Scheme as a threshold which aligns with the existing competency criteria set out by the Scheme, and other industries such as oil and gas.
The guidance document can be found here.
MCS periodically issues consultations. This usually takes place when developing or updating the MCS scheme documents. A summary of previous consultations is listed below. Please click on the relevant link in the table to view a summary of the responses.
|Date||Description of Consultation||Summary of responses|
|October 2013||16 MCS standards went out for public consultation. The changes centered on improving the robustness of the Scheme in preparation for the launch of the domestic RHI in Spring 2014.||Please click here|
|April/May 2014||MIS 3005 and MCS 007 (heat pump standards) went out for consultation following proposed changes regarding the following three technology types were: Hot Water Heat Pumps, Very High Temperature Heat Pumps and Solar Assisted Heat Pumps.||Responses to follow|
|April/May 2014||MCS 001 went out for consultation following proposed changes to Appendix A, Clause 8 (contracts and customer requirements).||Responses to follow|
|Feb 2015||MIS 3005, MCS 007, MCS 021 and MCS SCOP Calculator (heat pump standards) went out for consultation after intergrating ErP requirements.||Responses to follow|
|October 2015||Scheme Threshold Consultation||Responses to follow|
|November 2015||MCS 008 Biomass Cookers Annex||Responses to follow|
|November 2015||CB Requirements Document||Responses to follow|
|March 2016||Defined Scope Criteria||Responses to follow|
|August 2016||MCS published a six week consultation on extending the scope of MCS 014, MCS 015, MIS 3007 and MIS 3007-2 as well as the Micro-Cogeneration Add-On Calculator and Micro-Cogeneration Add-On-Test Package: Test methodology based on PAS 67:2013.Supporting Note||Responses to follow|
|June 2017||MCS published a one month consultation on a number of changes to MCS 012||Responses to follow|
Solar PV Reference Materials
The following reference materials have been approved for use alongside MIS 3002:
|New PV Guide||1.0||07.02.2013|
|Blank Horizon Chart||1.0||21.02.2013|
|The MCS Shade Evaluation Procedure 1||1.0||16.07.2013|
|The MCS Shade Evaluation Procedure 2||1.0||16.07.2013|
|FAQs for MIS 3002 v3.1||1.0||16.07.2013|
Heat Pump Reference Materials
Grid connection forms
The following forms should be submitted to the relevant Distribution Network Operator (DNO) before connecting a heat pump to the elecricity grid. Please contact the product supplier for all product data required to complete the forms and the DNO for further information on the forms.
|Form A – Word||Click here|
|Form A – PDF||Click here|
|Form B – Word||Click here|
|Form B – PDF||Click here|
|Form C- Word||Click here|
|Form C – PDF||Click here|
Heat Pump Software
Installer companies may use any heat pump calculation software that complies with EN12831. Alternatively, installer companies may use the spreadsheet New Build house using BS EN 12831 simplified method v 1 2 which can be downloaded below.
DECC Heat Pump Training Road Show Webinars
Following the DECC Heat Pump Training road shows in 2011, we have published a series of comprehensive webinars that have been produced. The webinars cover all of the topics from the training day.
The training webinar has been broken down into 19 parts to enable the sections to be viewed in bite sized chunks. Please view the webinar sections in the order listed below.
|DECC Roadshow Presentations|
|MIS 3005 Presentation 1||Introduction and Scope|
|MIS 3005 Presentation 2||Motivation and Common Issues|
|MIS 3005 Presentation 3||BS EN 12831 and Sizing|
|MIS 3005 Presentation 4||MIS 3005 v3 Presentation 4 – Tables and Spreadsheet Outputs|
|MIS 3005 Presentation 5||Hot Water and Controls|
|MIS 3005 Presentation 6||Heat Emitter Guide|
|MIS 3005 Presentation 7||Discussion on Heat Loss Calculators|
|MIS 3005 Presentation 8||Info on Ground Collectors|
|MIS 3005 Presentation 9||Table 3 and Look-up Tables|
|MIS 3005 Presentation 10||Reynold’s No, 2.5 percent, Purging and Testing|
|MIS 3005 Presentation 11||Documentation and Summary|
|MIS 3005 Spreadsheet 1||Spreadsheet 1|
|MIS 3005 Spreadsheet 2||Spreadsheet 2|
|MIS 3005 Spreadsheet 3||Spreadsheet 3|
|MIS 3005 Spreadsheet 4||Spreadsheet 4|
|MIS 3005 Spreadsheet 5||Spreadsheet 5|
|MIS 3005 Spreadsheet 6||Spreadsheet 6|
|MIS 3005 Spreadsheet 7||Spreadsheet 7|
|MIS 3005 Section 4.3||System Performance|
|Supplementary Spreadsheets and Documents|
|DECC Roadshow FAQs||Download here|
|DHDG sizing spreadsheet @ 19&21 v1.1 start||Download here|
|DHDG sizing spreadsheet @ 19&21 v1.1 finish||Download here|
|Domestic HW cyl selection guide||Download here|
|Guidance on designing a heat pump system to MIS3005 v3.1a issue 1.0 FINAL||Download here|
|MCS Hydraulics Design – Pressure Drop Charts v1_0||Download here|
|GSHP Hydraulics Design Guide v1.0||Download here|
|GSHP Hydraulics Worksheet v1.0||Download here|
|MIS 3005 a practical example||Download here|
|New Build house using BS EN 12831 simplified method v 1 2||Download here|
|U-Values from Domestic Heating Design Guide v1.0||Download here|