100
Error Messages (cont.)
The control is no longer able to read the mix return sensor due to a
short circuit. The control continues to operate without
∆
T protection
of the slab. Locate and repair the problem as described in
Installation - Step 7 (page 29). To clear the error message from the
control after the sensor has been repaired, press either the Menu or
Item button.
(See fig. j)
The control is no longer able to read the mix return sensor due to an
open circuit. The control continues to operate without
∆
T protection
of the slab. Locate and repair the problem as described in
Installation - Step 7 (page 29). If the mix return sensor was
deliberately not installed, set the
∆
T MAX item to OFF. To clear the
error message from the control after the sensor has been repaired,
press either the Menu or Item button.
(See fig. k)
The control is no longer able to read the boiler sensor due to a short
circuit. If the Boil MIN item is set higher than 100°F (38°C), the control
closes the Boiler contact when there is a call for heat in the system.
The boiler temperature is limited by the operating aquastat. If the
Boil MIN is set lower than 100°F (38°C), the control does not operate
the Boiler contact. Locate and repair the problem as described in
Installation - Step 7 (page 29). To clear the error message from the
control after the sensor has been repaired, press either the Menu or
Item button.
(See fig. l)
The control is no longer able to read the boiler sensor due to an
open circuit. If the Boil MIN item is set higher than 100°F (38°C), the
control closes the Boiler contact when there is a call for heat in the
system. The boiler temperature is limited by the operating aquastat.
If the Boil MIN is set lower than 100°F (38°C), the control does not
operate the Boiler contact. Locate and repair the problem as
described in Installation - Step 7 (page 29). To clear the error
message from the control after the sensor has been repaired, press
either the Menu or Item button.
(See fig. m)
The control is no longer able to read the Mix 10K input because of a
short circuit. The control continues to operate as if nothing is
connected to the Mix 10K input. Locate and repair the problem as
described in Installation - Step 7 (page 29). To clear the error
message from the control after the problem has been corrected,
press either the Menu or Item button.
(See fig. n)
APPENDIX IV
APPENDIX IV - Error Message Overview
j
k
l
m
n
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...
Page 96: ...94 APPENDIX III APPENDIX III Application Drawings...
Page 97: ...95 APPENDIX III APPENDIX III Application Drawings...
Page 98: ...96 APPENDIX III APPENDIX III Application Drawings...
Page 99: ...97 APPENDIX III APPENDIX III Application Drawings...
Page 106: ......
