Nuaire Group MRXBOX95B-LP1 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-LP1

Page 1: ...the appropriate standards Ensure that the mains supply Voltage Frequency and Phase complies with the rating label Please note a clear working space is required around the installed unit to allow the c...

Page 2: ...uld be adjustable 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 regulati...

Page 3: ...the whole dwelling ventilation supply rate from Table 2 0 04 x gross internal volume of the dwelling heated space m3 Step 2 Calculate the whole dwelling extract ventilation rate by summing the individ...

Page 4: ...n ceilings Exhaust air from kitchen bathroom to outside via air brick Part no PVC505NS Supply and extract ducts from external air bricks to the unit needs to be insulated Minimum 300mm Top of ceiling...

Page 5: ...rey Green yellow Unit serving kitchen and bathroom Unit serving kitchen and two bathrooms Figure 8 Figure 9 For good EMC engineering practice any sensor cables or switched live cables should not be pl...

Page 6: ...nt 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 quality and could result...

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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