IBC EBX Series, Installation And Operation Manual, Page: 58 / 68

11.2.1 Temperature issues
Temperature issues
Issue Diagnosis Fix
Low heat Operating temperature
too low. Increase temperature target.
Load configuration
improperly set up. Review load configuration parameters.
Boiler undersized. Refer to Load Calculation vs. Boiler
Output.
Air trapped within
system. Bleed system as required.
Improper system
piping. Refer to recommended piping guidelines
for the respective boiler model.
System pump
undersized. Check pump manufacturer’s data.
Defective thermostat. Refer to manufacturer’s instructions.
Boiler cycling on
operating/ safety
controls. Check operation with
Ohmmeter/Voltmeter.
System radiation
undersized. Check manufacturer’s rating tables for
capacity per foot.
Temperature exceeds
mercury thermostat setting Incorrect anticipator
setting. Check with Ammeter.
Thermostat not level. Check level.
One or more zones do not
heat properly Air trapped within zone
(s) piping Vent system/zone as required.
Low radiation/
excessive heat loss. Check actual length of pipe using
radiation / heat loss calculation.
Low flow rate to zone
(s). Check temperature drop across zone.
Defective zone valve/
zone circulator. Check operation per manufacturer’s
instructions.
58
Section: Troubleshooting