Installation manual

16
Figure 27: Water Flow Check
NOTE: It is possible to use space heating without
completing the DHW setup. This can be done by
selecting ‘N’ on the DHW setup screen where it asks
if the cylinder is connected (see figure 29).
When the cylinder is ready, it will be necessary to
return to this step of the commissioning and select
‘Y’ instead to set up domestic hot water.
If there is no flow at all, a high pressure fault will
appear on the UI screen and the commissioning will
be aborted. Once the test is completed, you will see
one of three messages:
1. No flow detected
2. Flow too low
3. Flow detected
If you see message 1 or 2, you must carry out the
changes recommended on the screen and repeat the
test. There will be a time delay before you can restart
the test. When you see the screen shown in figure 28,
with the pump highlighted in green, flow has been
detected and the compressor test is complete.
You will receive the status ‘Waterside is OK’ when the
waterside checks are completed. Selecting ‘Next’
brings you to the Electrical Connections menu.
If carrying out start up in cold weather, start by
heating the buffer. Once it reaches the required
temperature open each zone slowly and in series,
especially for under floor heating.
If you have selected Schematic 1 or 3 (Space heating
only or Bivalent space heating), move now to section
7.1.9 ‘Heating Curves’ to complete the commissioning
process.
7.5 DHW setup
Before commissioning the DHW, a number of checks
must be carried out, as shown in figure 29. When you
have ticked each box to confirm each DHW check,
‘Next’ will bring you back to the installer menu, where
you can now select ‘Electrical Connections (DHW)’.
7.5.1 Electrical connections (DHW)
This menu provides a list of electrical connections that
should be made prior to commissioning the domestic
hot water cylinder. You must check and confirm all
connections in order to make the ‘DHW Test’ available
in the installer menu.
NOTE: If you leave the commissioning menu before
you successfully complete commissioning, all
previous information entered will be saved and
completed menus will be highlighted in green.
NOTE: Once you have completed the Electrical
connections (SH) checklist, you can access the
following menus by escaping to the upper level
Installer menu:
 Message log
 Operating data
 Output tests
 History
Figure 28: Successful Compressor Test
Figure 30: Electrical Connections screen (DHW)
Figure 29: DHW Set-up screen
NOTE: for safety reasons, if the pressure exceeds
38 bar/temperature exceeds 60°C, the
commissioning will also be aborted.