LAB1283R, Issue 2, Apr 2017
Page 18
5.2 Pre-commissioning
The following steps inhibit automatic functions that could affect the commissioning
process and need to be carried out prior to commissioning:
Set the time and date – see 1
From the home screen, press “
PROG
”
Use the “
+
” and “
-
“ buttons to set the programme number to ‘P9’ (Factory default is P9)
Press
“SET”
From the home screen, press and hold “
SET
” and “
COPY
” simultaneously for 3 seconds
This action allows access to the ‘Installer’ programming level (opens at menu 1)
Press “
COPY
” twice to move to ‘Menu 3’ ‘Bypass tEnp’
Use the “
+
” or “
-
“ button to set to ‘off’ (OF)
This action inhibits the automatic bypass operation
Press “
COPY
” four times to move to ‘Menu 7’ ‘IhuN’
Use the “
+
” or “
-
“ button to set to ‘off’ (OF)
This action inhibits the automatic humidity controlled boost operation
Press “
SET
” to return to the home menu
5.3 Commissioning (see also section 4.0
Ventilation Commissioning)
Use the “
+
” or “
-
“ button to set speed function to ‘Boost’
From the home screen, press and hold “
SET
” and “
COPY
” simultaneously for 3 seconds
to open the installer level
Press “
COPY
” once to move to ‘Menu 2’ ‘Fan 1 Low’
Press “
PROG
” once to ‘Fan 1 Boost’ (Extract/Exhaust fan)
Use the “
+
” or “
-
“ button to set the desired speed (Factory default speed is 50%)
Note:
The installer level access will time out after 1 minute of inactivity but will record any
changes made to the settings
Press “
SET
” to
record
the settings and return to the home screen
Press “
ESC
” to
discard
the settings and return to the home screen
LAB1283R, Issue 2, Apr 2017
Page 15
4.0 Commissioning
4.1 Overview
4.1.1
IMPORTANT: Ensure that the protective covers have been removed from the filters
4.1.2 When the wiring connections have been checked, switch on 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 Ventilation Compliance Guide to balance the system. Airflow measurements
should be performed using a calibrated airflow measuring device. The most common
method uses a vane anemometer, placed in a hood which completely covers the air-valve
to measure the extract or supply airflow rate. The instrument should be calibrated annually
by returning the instrument to a UKAS accredited calibration centre and be capable of
achieving an accuracy of ±5%
4.1.4 Each room airflow rate will need to be recorded on an Inspection Checklist and Airflow
Measurement Test Sheet. A completed copy must accompany these instructions and be
handed over to the dwelling owner upon completion of the installation
4.2 System balancing
•
Ensure that the pre-commissioning checks have been carried out and that frost
protection is not engaged
•
Fully open all of the air-valves
•
Switch the system to boost using the user interface
•
Close all internal and external doors and windows
•
Measure the total air volume of the extract valves (wet rooms)
•
Using the user interface control, adjust the ‘boost’ speed to achieve the total design
extract boost rate
•
Adjust individual wet room air-valves to achieve the individual room design extract
rates
•
Switch the system to low using the user interface
•
Measure the total air volume of the supply valves (habitable rooms)
•
Using the user interface control, adjust the ‘low’ speed to achieve the total design
supply rate
•
Adjust individual habitable room air-valves to achieve the individual room design
supply rates
•
Double check all of the valve flow rates and record the readings
•
Using the lock nuts fitted to the air-valves, lock in position
V E N T I L A T I O N
V E N T I L A T I O N
