Dunkirk Helix VLT Vertical Laser Tube, Wall Hung Modulating Condensing Boiler - Manual (Page 70)

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1.1 Introduction
Boiler is equipped with programmable electronic control
and user interface module.
1.2 Operation
• Display: 4 x 20 character LCD screen to show boiler
status.
• Function Keys
Operation with LCD character display module
1.3 Status Indication
The following status screens can be displayed:
S E R V I C E R e m i n d e r
Key Description
- Manual Lockout Reset
- Enter/Exit user menu
- Go to previous screen
- Select a menu item
- Confirm new parameter value
- Scroll up to next menu item
- Increase value
- Scroll down to next menu item
- Decrease value
Boiler Status Indicator
F = Flame Detected
P = Central Heating System pump On
B = Combustion Air Blower On
S = Safety Relay Check
G = Gas Valve Open
D = DHW Pump On
Service Reminder Indica tor
Boiler in Standby Mode
Boiler Supply Water
Temperature Indicator.
Boiler Running in Central
Heat mode
Combustion Air Blower
Speed Indicator
Boiler Running in DHW
mode
Lockout Alarm Indicator
Error code and short text
description is displayed
Press 'Reset" key for manual
reset.
Blocking Error
Error code and short text
description is displayed Boiler
automatically returns to
Standby Mode when condition is
eliminated.
APPENDIX A - CONTROL MODULE