Dunkirk Helix VLT Vertical Laser Tube, Wall Hung Modulating Condensing Boiler - Manual (Page 6)

6
A6. Set The Stainless Condensing Boiler CH
6-1. Set stainless Condensing boiler to be Master boiler
in Cascade mode. Change S4-switch to ON posi-
tion, (away from S4 mark on control board). See
Figure A5.
6-2. Change boiler address to Cascade 1 following
procedure below.
• Press down and hold “Enter” button and
immediately press down and hold “Menu” button
for 5 seconds to enter into Installer Menu.
• Use arrow keys to go to “Boiler Config”
• Press “Enter” key
• Press “Enter” key again. The number after
“Boiler Address:” will be flashing.
• Use arrow keys to change this number to 1.
• Press “Enter” key, number will stop flashing.
• Press “Menu” key twice to exit Installer Menu.
• CASCADE 1 should appear on user interface.
6-3a Set System Temperature Setting for Stainless
Condensing boiler. If outdoor reset is activated
(CH Mode 1 or CH Mode 2) and if heating system
requires a reset curve different from the default
curve.
• Change Outdoor Reset curve. Detailed
instructions can be found in boiler Installation,
Operation and Maintenance Manual (IOM).
• Set “Boiler Max” parameter to about 20°F lower
than setting point of Additional Heating Device,
i.e. 150°F.
6-3b If outdoor reset function is deactivated (CH
mode 0), follow procedure below to set System
Temperature Setting point.
• Press “Menu” button.
• Scroll down to “Setting” using arrow keys.
• Press “Enter” key.
• Press “Enter” key again. The number after
“Cascade CH Setting” will be flashing.
• Use arrow keys to change this number to about
20°F lower than setting point of Additional
Heating Device, i.e. 150°F.
• Press “Enter” key. Number will stop flashing.
• Press “Menu” key twice to exit setting mode.
A7. Set The Stainless Condensing Boiler DHW Setting
7-1 Set DHW supply temperature setting of stainless
condensing boiler to temperature about 10°F lower
than corresponding DHW setting point on Additional
Heating Device, i.e. 170°F.
A8. Create CH call for heat and verify system works
as intended.
A9. Create DHW call for heat, if applicable, and verify
system works as intended.
SECTION A - STAINLESS CONDENSING BOILER OPERATING WITH HIGH TEMPERATURE HEATING DEVICE