Nuaire Group MRXBOX95AB-WM2QA11179 Installation And Maintenance Manual Download Page 12

Standard Assessment Procedure 2005 – Appendix Q MVHR Installation Guide 

Page 4 of 6 

   Figure 2 

Sample Mounting Positions 

 

         

      

 

 

 
 

3.  Electrical Connection 

Decision 

Yes, No or 

N/A

 

Has the rating label been verified to establish suitability for the 
installation strategy and whether an earth is required (e.g. voltage, 
class I or II product status)? 
 

 

Has a local isolator been provided to enable the unit to be isolated 
for maintenance purposes? 
 

 

Has the unit been fused in accordance with its power rating? 
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SECTION 2:

   

COMMISSIONING GUIDANCE 

Summary of Contents for MRXBOX95AB-WM2QA11179

Page 1: ...ng the warmer months 2 0 Installation Installation must be carried out by competent personnel in accordance with the appropriate authority and conforming to all statutory governing regulations All mai...

Page 2: ...nded Ideally 150mm diameter or 204 x 60mm rectangular ducting should be used Refer to dwelling design drawing figure 7a and 7b on page 4 for further information Ducting joints must be sealed with sili...

Page 3: ...boost should be at least the greater of step 1 and step 2 Note that the maximum individual room extract rate should be at least those given in table 1 for minimum high rate n the minimum air supply ra...

Page 4: ...Minimum 300mm Air supply to lounge via Air Valve Part no VS125 in ceilings Extract air from kitchen bathroom via Air Valve Part no VS125 in ceilings Air supply to bedrooms via Air Valve Part no VS125...

Page 5: ...0Hz Room lights Light switches Double Pole N L 3 Pole isolator 3 Pole isolator Kitchen switch Kitchen switch Blue Brown Black Optional summer boost switch Supply cord from unit Green yellow Blue Brown...

Page 6: ...cked in place to prevent further adjustment 6 Once commissioned the home owner tenant should be informed that the unit should not be adjusted as it will have a detrimental effect on the indoor air qua...

Page 7: ...ated before carrying out any work Note The supply cable must be replaced by an electrically competent person When ordering spare parts please quote the serial number of the unit and the ARC number of...

Page 8: ...have no adverse effect on the fan The speed will return to normal once the interference has subsided 5 0 INSTALLATION REQUIREMENTS In addition to the particular requirements given for the individual...

Page 9: ...ings assessed under The Building Regulations 2010 specifically SAP 2009 and Approved Documents L and F Completion of this document is therefore only required for dwellings assessed by SAP 2005 Custome...

Page 10: ...r to overcome particular obstructions If flexible ducting has been used has it been pulled taut to minimise system resistance Has the number of duct bends been minimised to ensure adequate air flow an...

Page 11: ...y unit been fixed to a stable element of the building fabric e g wall or floor using manufacturer recommended supplied fixing brackets Has the condensation drain been fitted and the pipe insulated Hav...

Page 12: ...or N A Has the rating label been verified to establish suitability for the installation strategy and whether an earth is required e g voltage class I or II product status Has a local isolator been pro...

Page 13: ...tion grilles been locked where possible to minimise unapproved occupant adjustment Figure 3 Ensure all external and internal windows and doors are closed Set fan speed using manufacturer data table Se...

Page 14: ...e customer been advised that opening windows is not recommended during normal use in order to ensure the energy efficient operation and performance of the balanced system Has the customer been advised...

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