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After adjusting parameter 3012 the following parameter should be reviewed and adjusted if needed.
These parameter can be found in the installers menu follow the steps below to access the installer menu.
To access the "Installers Menu" (see also section
16 in the IO manual to better understand the
several menus) proceed as follows:
1.
Press and hold together buttons RESET and
for 5 seconds until the
displayed;
2.
Release the two buttons;
3.
Press and release the
buttons to scroll through the list of the
parameters;
4.
Once the parameter has been displayed, it
can be changed by pressing and releasing the
RESET button (value start to blinking) and
using the
change the value;
Parameter Parameters description M.U.
2062
DHW post pump time
2063
DHW Max priority time
2067
DHW priority
When using the boiler for both DHW and heating a different wiring and controls setup is requied to
enable the boiler to have priority DHW. Follow the wiring and piping diagrams in this section and
NOT the wiring and piping in the installation manual, this will allow the boiler to operate with priority
DHW. When the boiler is setup for priority DHW a heating system circulator can no longer be pow-
ered and controlled by the boiler. Therefore a third party zoning control will also be required for sys-
tem heating circulator when using priorty DHW with the boiler.
When using a DHW circulator the neutral wires for both the DHW and boiler circulator must be
spliced together before they are conneted to the terminal strip inside the boiler. The two wires should
be spliced together in the junction box provided with the boiler. The boiler terminal block does not
accept multiple wires on a single terminal. Stranded wiring should be used to allow the control pan-
nel to open and close freely.
icon is
and
and
keys you can
sec
min
VSLII DHW Wiring Setup
5.
Press and release the reset button to confirm
the amended data before moving to the next
parameter.
6.
To exit the "Installers Menu", press and hold
RESET button for more than 5 seconds until
the
icon stops being displayed.
Notice! If no key is pressed for more than 60
seconds, the control automatically exits the
"Installers Menu". Any parameter change not
saved using the reset button, will be lost. The
next table lists each parameter for DHW, what
it affects and it's adjustment range.
Range
10 to 255
1 to 60
0= (TIME), DHW has priority to CH
during DHW max priority time (2063)
1= (OFF), CH always has priority to DHW
2= (ON), DHW always has priority to CH
Slant/Fin VSLII DHW Settings
Boilers factory
settings
120
30
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