BOILER MINIMUM RETURN TEMPERATURE
(BOIL MIN)
(See fig. i)
Most boilers require a minimum return water temperature in
order to prevent flue gas condensation. The BOIL MIN
adjustment is set to the boiler manufacturer’s recommended
minimum return temperature. Only when a boiler sensor is
installed on the boiler return can the proMIX 101 provide
boiler protection. In this case, when the boiler is firing and the
boiler return water temperature is below the BOIL MIN setting,
the proMIX 101 turns on the BOIL MIN segment in the LCD.
The control will then reduce the heating load on the boiler by
limiting the output of the floating action 3-way valve. Once the
return temperature raises above the BOIL MIN setting, the
segment light will extinguish and the floating action 3-way
valve will return to normal operation. If the installed boiler is
designed for low temperature operations, set the BOIL MIN
adjustment to OFF.
NOTE:
Boiler protection is only possible if a boiler sensor is
mounted on the return of the boiler and connected to the
Com (13) and the BRet S3 (14) terminals on the control.
WARM WEATHER SHUT DOWN – OCCUPIED
(WWSD OCC)
(See fig. j)
When the outdoor air temperature rises above WWSD OCC
setting, the proMIX 101 turns on the LCD's WWSD pointer.
When control is in Warm Weather Shut Down, Mix Demand
pointer is still displayed if there is a demand. The control will
not respond to any Mixing Demand with pump or boiler
output activity. The default setting for this screen is 68°F.
WARM WEATHER SHUT DOWN – UNOCCUPIED
(WWSD UNOCC)
(See fig. k)
When the outdoor air temperature rises above WWSD
UNOCC setting, the proMIX 101 turns on the LCD's WWSD
pointer. When control is in Warm Weather Shut Down, Mix
Demand pointer is still displayed if there is a demand. The
control will not respond to any Mixing Demand with pump or
boiler output activity. The default setting for this screen is 60°F.
TEMPERATURE DISPLAY UNITS
(See fig. l)
Set to either Fahrenheit (°F) or Celsius (°C) for the units of
measurement in which all temperatures are to be displayed in
the control’s LCD.
39
CONTROL FUNCTION
OVER
VIEW
CONTROL FUNCTION OVERVIEW - Section B - Mixing Zone
i
k
j
l
Summary of Contents for proMIX 101
Page 1: ...proMIX 101 Installation Manual...
Page 4: ...2 INTRODUCTION INTRODUCTION Control Overview...
Page 46: ...44 APPENDIX I proMIX 101 Menu Tree APPENDIX I...
Page 47: ...45 APPENDIX I proMIX 101 Menu Tree APPENDIX I...
Page 48: ...46 APPENDIX II Application Drawings APPENDIX II...
Page 49: ...47 APPENDIX II Application Drawings APPENDIX II...
Page 50: ...48 APPENDIX II APPENDIX II Application Drawings...
Page 51: ...49 APPENDIX II APPENDIX II Application Drawings...
Page 55: ......
