Aquastat IQ Option Card – Instruction Sheet
Page 7 of 7
ORDERING INFORMATION
Part Number
Description
102720-01
Aquastat Limit Control IQ Option Card, 130-220 Deg F, Manual Reset for use with
Option Control Panel, temperature sensor, well, sensor clip, instructions, Unit Pack
102717-01
Aquastat Limit Control, IQ Option Card, 130-220 Deg F, 15 Deg F Adjustable
Differential, Auto Reset, for use with Option Control Panel, temperature sensor, well, sensor clip,
instructions, Unit Pack
102292-01
Aquastat Limit Control IQ Option Card, 130-220 Deg F, Manual Reset for use with
Option Control Panel, Less well, Less Sensor, Unit Pack
102293-01
Aquastat Limit Control, IQ Option Card, 130-220 Deg F, 15 Deg F Adjustable
Differential, Auto Reset, for use with Option Control Panel, Less well, Less
Sensor, Unit Pack
TROUBLSHOOTING
Aquastat IQ Option Card Error Codes
The following errors are reportable via both EnviraCOM and the IQ Option Panel Display. Errors will be displayed in
view mode.
Display
Status
Boiler / Control Action(s)
Err
18
Internal Failure
Replace Control
Err
119
Sensor Failure
Temperature sensor or interface failure (open or short connection or
increased connection resistance, dual sensor mismatch) or control
hardware failure
Err
25
Lockout, manual reset
required
When a lockout occurs the boiler will shut down. The boiler will not
automatically restart once the temperature has decreased below the High
Limit. To Reset the control follow “Aquastat Reset Pushbutton procedure
described above.
U.S. Boiler Company, Inc.
P.O. Box 3079
Lancaster, PA 17604
