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LAB1283R, Issue 2, Apr 2017

 

 

 

Page 24 

Press the “

+

” and “

-

“ buttons to move along the timeline at the bottom of the screen; a 

block will be 

added

 to each position.   

 

 

To remove a block, remove the word “

BYPASS

” from the screen by pressing “

BYPASS

” 

and press the “

+

” and “

-

“ buttons to move along the timeline at the bottom of the screen; a 

block will be 

removed

 from each position. 

 

Daily ‘timeline patterns’ can be 

copied

 to another day or multiple days to avoid 

programming each day individually. 

 

From the home screen, press “

COPY

” 

 

Select the day to copy by pressing “

PROG

” (the day number will be displayed) and then 

the day to copy-to by pressing the “

+

” and “

-

“ buttons (the day number will flash).  When 

the two correct days have been selected, press “

COPY

” and the timeline pattern will copy 

across. 

 

Press 

“SET”

 to record 

 

 

5.14  Filter reminder  

 

The word ‘Filter’ will appear on the home screen after the set time has elapsed. When this 

occurs, clean the filters (see section 6) 

 

Note: The figure at the bottom of the screen indicates elapsed operating time in hours. 

When the numbers are 

not

 flashing, they indicate the elapsed time since the last filter 

reset. If “

DAY

” is pressed, the numbers will flash and indicate the total elapsed operating 

time in hours.  

 

To reset the filter elapsed time reminder following cleaning, press and hold “

SET”

 for 5 

seconds. 

 

 

 

 

 

LAB1283R, Issue 2, Apr 2017

 

 

 

Page 9 

 

 

 

2.0  Installation 

 

2.1  Overview 

 

2.1.1  The following instructions are intended to help prevent hazards. Installation should only be 

carried out by a qualified electrician and competent persons in clean, dry conditions where 

dust and humidity are at minimum levels 

 

 

Note: we advise installers to fix all mains, switch and sensor wiring (in accordance with the 

latest edition of the Wiring Regulations) prior to fixing the HRX2D unit in position 

 

2.2  Preparation

 

 

2.2.1  When accepting delivery of the appliance, inspect for transit damage. If in doubt, call our 

Customer Services team on 03443 715523 

 

2.2.2  The HRX2D unit must be fitted horizontally in a portrait orientation to a vertical and solid 

flat surface using the fixing bracket provided 

 

2.2.3  Appropriate screw fixings to suit the support medium will need to be supplied by the 

installer. The built-in mounts suit 4 x 4mm (No.8) pan head screws 

 

2.2.4 

Important:

 Ensure that there is sufficient space for access to the wiring centre (cover 

removal), the condensation fittings and ductwork 

 

2.2.5  Ensure that there is sufficient space below the appliance to access the filters and for 

carrying out any future maintenance on the appliance 

 

2.2.6  To wall mount the unit, firstly decide on the correct handing (left or right) based on the 

most convenient duct routing to inside and outside the property.  Once established, lift up 

the 2 folded away mounting brackets which will be at the back of the unit into an upright 

position.  Drill 2 holes at 460mm centres and level with each other onto the surface to 

which the unit will be mounted.  Using suitable fixings, securely attach the unit to the wall. 

 

 

 

 

 

 

 

 

 

 

460mm 

V E N T I L A T I O N

V E N T I L A T I O N

Summary of Contents for HRX2D

Page 1: ...DO NOT SWITCH OFF THE UNIT it is designed to run continuously If the unit is switched off indoor pollutants and moisture levels may increase which could endanger your health or damage your home It is...

Page 2: ...ing Regulations BS7671 The electrical installation should be inspected and tested by a suitably qualified person after completion 4 The appliance should be provided with a local double pole fused spur...

Page 3: ...lations 11 A condensate drain should be installed from the appliance to an appropriate drain location Domus recommend the Domus 297 dry trap and condensate drain kit 12 The condensate drain and associ...

Page 4: ...sible either repair or replace the product during its usual working hours or at Domus discretion provide you with a refund of the purchase price which you paid for the product If you need to make a cl...

Page 5: ...ttle or no air is extracting or supplying through the room valves Check that the filters have been removed from the pre commissioning protective covers Check that the filters are not blocked Check tha...

Page 6: ...el and data fiche 1 1 7 Ancillary items as required Domus 220x90mm rectangular rigid duct system or Domus 150mm rigid duct system or Domus Radial duct system Domus Thermal duct insulation Domus 297 dr...

Page 7: ...LAB1283R Issue 2 Apr 2017 Page 26 LAB1283R Issue 2 Apr 2017 Page 7 DOMUS HRX2D MVHR UNIT USER CONTROL INTERFACE Bluebrain controller V E N T I L A T I O N V E N T I L A T I O N...

Page 8: ...the fresh air supply fan will automatically reduce in speed to approximately 20 of its commissioned setting to reduce the load on your heating system and avoid possible freezing of the heat exchanger...

Page 9: ...to help prevent hazards Installation should only be carried out by a qualified electrician and competent persons in clean dry conditions where dust and humidity are at minimum levels Note we advise in...

Page 10: ...he and buttons to view the selected programme number Factory default is P9 The pre programmed Thermal bypass programmes are shown in the diagram on page 18 Note Each square has a time value of 30 minu...

Page 11: ...ow the health and safety and user instructions supplied with the solvent weld This is particularly important when working in confined spaces 2 3 2 When the threaded socket is secure fit and hand tight...

Page 12: ...a Domus 4411 4411T universal roof terminal should be fitted or a proprietary roof terminal designed for mechanical ventilation with a free area of at least 10 000mm 2 4 10 The stale extract air must...

Page 13: ...he home screen 5 7 Frost protection trigger temperature adjustment From the home screen press and hold SET and COPY simultaneously for 3 seconds Press COPY as required to move to Menu 4 T5 Menu T5 set...

Page 14: ...to a maximum of 99 Factory default 80 Note Low speed cannot be set higher than Boost speed and Boost speed cannot be set higher than Max speed Press SET to record or ESC to discard the settings and re...

Page 15: ...the mains supply and check that the system is operating correctly See also 5 0 User interface 4 1 3 Airflow rates will need to be set at each room s air valve in accordance with the 2010 Domestic Vent...

Page 16: ...the system From the home screen Press DAY The hour text will flash Use the and buttons to set the hour Press DAY The minute text will flash Use the and buttons to set the minute Press DAY The day will...

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