Domus Ventilation HRXE-H Інструкція з монтажу Посібник з монтажу - Сторінка 7
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6.0 COMMISSIONING
The filters fitted inside the unit are protected with a plastic film.
Prior to commissioning remove the covers (see figures 19 & 20),
take off the film and replace.
• For the required air flow rates please refer to the design specification
for the property, follow section 2.9, or refer to building regulations ADF
2010.
• The unit is supplied with independent control for both normal and
boost airflows (see figure 17).
• Correct commissioning is essential to ensure the ventilation air flow
rates are met. It also ensures the unit is not over ventilating and causing
excessive power consumption.
• Commissioning should be carried out in accordance with building
regulations document "Domestic ventilation compliance guide"
www.planningportal.gov.uk/building regulations/approved
documents/partf/associated
A calibrated moving vane anemometer and hood will be required to
carry out commissioning.
• Adjustment valves should be locked in place to prevent further
adjustment.
• 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 in condensation and mould
growth. The clear panel covering the control has an adhesive panel
which should be exposed and sealed post commissioning to prevent
tampering.
• Speed 1 is limited to never exceed speed 2, when commissioning
speed 2 should always be set first.
6.1 Speed 3
The unit is designed to extract air from all wet rooms e.g. bathroom,
kitchen, en suite, utility room (with sink). WC's do not need to be
ventilated if open-able windows are fitted.
Supply air should be to all habitable rooms e.g. bedrooms and lounge.
Extract / input grilles should be adjustable valve types (not supplied).
External grilles are to have a minimum free area of 12,250 mm
6.2 Humidity Adjustment
This product contains an internal humidity sensor fitted into the airflow
extracting from the wet rooms. When the unit senses that the humidity
exceeds the set point the unit will boost to that set by the commissioned
boost speed. The set point can be found on the front of the unit (see
figure 17) and is at its least sensitive when turned fully clockwise.
The sensor is measuring humidity from all the wet rooms at the
same time and should not be relied on to solely boost the unit.
Additional switch should be used local to the wet rooms (see
wiring diagrams).
17
Speed 1
Unit Control Detail
LAB1355R | SEPTEMBER 2018
Speed 2
Speed 1
Speed 2
(Standard Configuration Only)
7.0 STATUS INDICATION
The status of the unit is indicated by a series of LED's on the front cover,
the variants of which are shown below.
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8.0 INTEGRAL AUTOMATIC HX BYPASS
Intake and extract temperatures are monitored at the point the
airflows enter the unit, if the range falls within the set parameters the
bypass damper is opened automatically to target an indoor comfort
temperature all year round.
The extract temperature is an average from all wet rooms. If this
exceeds 25°C the unit may go into bypass depending on outside
temperatures.
8.1 Frost Protection
In the event of the intake air temperature at the unit dropping below
the predetermined set point (-5°C as standard) the supply fan will
2
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reduce to minimum speed, once the temperature rises above the set
point the fan will return to its commissioned speed.
This mode will only activate after ten days of continuous run
time. If commissioning of the unit is outside of this timeframe
please notify the after sales department prior to site visit.
9.0 MAINTENANCE
Isolation - Before commencing work make sure that the unit,
switched live and control are electrically isolated from the mains
supply and switched live supply.
We recommend that the two filters are inspected after 6 months and
replaced every 12 to 18 months. The filters can be removed from the
unit by removing the two filter covers on the front panel of the unit.
Take hold of the two circular tabs either end of the filter covers and pull
out.
The filter can now be extracted by pulling the removal loop on the front
edge of the filter. Once the filters have been inspected return or replace
them as necessary. Inspect the heat exchanger every 5 years. Generally
check for damage and security of components. Refit cover.
Humidity
adjustment.
(H unit only).
Code for a set of filters - SPR428
Speed 1
Speed 2
Speed 3
Supply Fan Fault
Extract Fan Fault
Frost Protection
Filter Change
HX Bypass
(H units only)
LED Status Indication
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