NuAire MRXBOX95B-WM2 Installation And Maintenance Manual Download Page 11

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 MRXBOX95B-WM2

Page 1: ...the installed unit to allow the cover to be removed and provide sufficient access for maintenance such as filter change Please allow a minimum of 350mm in front of the unit The fan must be installed...

Page 2: ...le valve types not supplied External grilles to have a minimum free area of 12 250 sq mm 2 3 Ducting Before commencing ducting installation reference should be made to building regulations document Do...

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 the minimum air supply rate...

Page 4: ...ated supply duct Insulated supply duct Minimum 300mm Air supply to lounge via Air Valve Part no V125S in ceilings Extract air from kitchen bathroom via Air Valve Part no V125S in ceilings Air supply t...

Page 5: ...Pole isolator 3 Pole isolator Kitchen switch Kitchen switch Blue Brown Black Optional summer boost switch Supply cord from unit Green yellow Blue Brown Black Supply cord from unit Optional summer boos...

Page 6: ...ot be adjusted as it will have a detrimental effect on the indoor air quality and could result in condensation and mould growth The label covering the control has an adhesive panel which should be rem...

Page 7: ...nge speed This is normal and will 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 requi...

Page 8: ...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 9: ...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 10: ...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 11: ...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 12: ...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 13: ...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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