Lock/Unlock DIP Switch Setting
(Factory Setting is Unlock)
• Lock/Unlock DIP switch is used to lock and unlock the access
level of the control
(See fig. a)
• In locked mode, access levels cannot be changed
• A small icon representing a padlock is shown in the bottom
right hand corner of the display, indicating if control is locked
or unlocked
(See fig. b)
• To change the access level, set the DIP switch to the
unlocked, or down position. The current access level of the
control is viewed in its Miscellaneous (Misc) Menu.
• While viewing the access level, use the “up” and “down”
buttons to select between the Limited (LTD), User (USER),
Installer (INST) or Advanced (ADV) access levels
• To lock the access level, select the appropriate access level in
the Miscellaneous (Misc) Menu and move the DIP switch
from unlocked position to the locked position
• As long as the DIP switch is in the locked position, the access
level of the control can no longer be viewed or adjusted in its
Miscellaneous (Misc) Menu
Snow Melting / Mixing Reset
(Factory Setting is Mixing Reset)
• The Snow Melting / Mixing Reset DIP switch sets the
operating mode of the mixing system
• When DIP switch is set to the Mixing Reset setting, the
mixing system is used to supply heat to a building’s heating
system
• The control uses a reset ratio method of outdoor reset that
matches the heating load
• When this setting is used, a desired indoor air setting, design
outdoor setting and a design supply setting must be entered
into the control to create the reset ratio curve
• When the DIP switch is set to the Snow Melting setting, the
mixing system is used to supply heat to a single zone snow
melting system
36
PROGRAMMING
PROGRAMMING - Step 1 - Programming the Control
Maxi
Melt
!
Stop
b
Snow Melting
Mixing Reset
Test
a
Summary of Contents for SYSTEMpro 311
Page 1: ...SYSTEMpro 311 Installation Manual...
Page 90: ...88 APPENDIX II APPENDIX II SYSTEMpro 311 Menu Tree...
Page 91: ...89 APPENDIX II APPENDIX II SYSTEMpro 311 Menu Tree...
Page 92: ...90 APPENDIX III APPENDIX III Application Drawings...
Page 93: ...91 APPENDIX III APPENDIX III Application Drawings...
Page 94: ...92 APPENDIX III APPENDIX III Application Drawings...
Page 95: ...93 APPENDIX III APPENDIX III Application Drawings...
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