23
V. 1.2-14-03-17
brookvent.co.uk
www.brookvent.co.uk
T: +44 (0) 28 9061 6505
6.2 Commissioning Fan Speeds
1.
Turn all 4 fan control spindles down fully to off (
Extract Trickle
,
Extract Boost
,
Supply Trickle, Supply Boost
).
2.
Turn the “Boost Over
-
run” to zero.
3.
Turn the Boost Switch on (or trigger the boost by other means provided, e.g.
bathroom light switch relay if applicable).
4.
Turn the
Extract Boost
spindle up until the minimum extract boost rate is
achieved in all the wet rooms (extract valves) as per the BPEC process for
commissioning.
5.
Turn boost switch off (or other if applicable).
6.
Turn the
Supply Trickle
up until the whole dwelling ventilation rate has been
achieved in all the habitable rooms (supply valves) as per the BPEC process for
commissioning.
NB:
The trickle rate cannot be higher than the boost rate.
7.
Turn the
Extract Trickle
up until the total airflow balances the total supply
trickle rate.
DO NOT ADJUST THE VALVES!
8.
Turn the Boost Switch on (or trigger the boost by other means provided, e.g.
bathroom light switch relay if applicable).
9.
Turn the
Supply Boost
up until the total airflow balances the total extract boost
rate.
DO NOT ADJUST THE VALVES!
10.
Ensure that the whole system is commissioned correctly following the
procedures laid out by BPEC and the Domestic Compliance Guide (England and
Wales)
–
Part F
–
Means of Ventilation.
Commissioning is carried out to ensure that the required air flows are achieved
throughout the property. The volume airflow at each point should be measured using a
suitably calibrated Airflow Meter (anemometer), this is should be fitted with an adapter/
hood to ensure all air is captured and measured by the device.
For the required airflow rates refer to the design specification for the property and or
refer to Building Regulations (Part F: Means of Ventilation, England and Wales) or relevant
equivalent dependent upon local guidelines.
If further guidance is required on the commissioning process, please contact Brookvent
directly.
