Slant/Fin VSL Series User manual

VSL II DHW Settings
Use the following step to adjust parameter 3012, this parameter enables and controls
how DHW is controlled on the boiler. The table below lists all the possible settings for
parameter 3012. When setting up the boiler for use with the Slant/Fin DAWG parameter
3012 should be programmed to 2.
1. Turn the main electrical supply Off;
2. Press and hold, at the same time,
the RESET button and button;
3. Keeping the two buttons pressed,
turn the power on;
4. Wait until the word “init” is displayed
or until display start to show the
3000 parameters;
5. Let go of the RESET button and
after the button;
6. Parameters 3000 start to be
displayed;
7. Press and release and
buttons to scroll through the list of
parameters;
8. Once the parameter has been selected,
it can be changed pressing the RESET
button (value start to blinking) and using
the and buttons you can
change the value;
9. Press RESET button to save the
changed parameter;
10. Wait 10 seconds;
11. Turn the main electrical supply Off;
12. Turn the main electrical supply On to
leave the Factory menu.
3012 DHW mode
0 = no DHW
1 = DHW store with sensor
2 = DHW store with thermostat
3 = N/A
4 = N/A
5 = N/A

Slant/Fin VSLII DHW Settings2
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 icon is
displayed;
2. Release the two buttons;
3. Press and release the and
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 and keys you can
change the value;
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.
Parameter Parameters description M.U. Range Boilers factory
settings
2062 DHW post pump time sec 10 to 255 120
2063 DHW Max priority time min 1 to 60 30
2067 DHW priority
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
2
VSLII DHW Wiring Setup
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.

Slant/Fin VSLII DHW Settings 3
VSL II Water Connections
Heating system
supply
Heating system
return
Gas inlet
Cold water
make-up
Return from a
DHW indirect
water heater
)if needed)
This is a concept drawing
only. It is up to the system
design or to determine the
necessary components,
including the additional
equipment and any safety
devices which in the
judgment of the designer
are appropriate, in order to
properly size, configure and
design that system and to
ensure compliance with
local and national code.
CAUTION!!!
1 = Boiler
2 = Air separator
3 = Ball valve
4 = Drain valve
5 = Filling valve
6 = Expansion tank
7 = Filter
8 = Check valve
9 = Boiler circulator
10 = Manual gas shut-off valve (Install manual
shuttle valve 5ft (1.5m) above floor)
11 = Ground joint union
12 = Condensate drain
13 = Relief valve drain
14 = Indirect water heater pump (DHW pump)
(If needed)
15 = Heating circulator (Controlled by
third-party control)
16 = ASME relief valve

24Vdc VOLTAGE TERMINALS |0,+61 Imo-c
TOTAL TERMINAL LOAD FOR PUMPS IS MAX.3A
120 Yac VOLTAGE TERMINALS
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Electrical Connections when using DHW
u.s.A.
SlanVFin Corporation . 100 Forest Drive
Greenvale. NY 1 1548 . 516-484-2600
www.slantf in.com
Canada
SlanVFin LTD/LIEE .400 Ambassador Drive,
Mississauga, Ontario LsT 2J3. 905-677'8400
www.slantfin.ca
t'tr"eunai[irorracomtofi @2016 Slant/Fin Corp.. Publication VSLII-DHW , Printed in U.S.A. 0116