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Aquastat IQ Option Card – Instruction Sheet
ORDERING INFORMATION
Part Number
Description
Aquastat Limit Control IQ Option Card, 130-220 Deg F, Manual Reset for use with
102720-01
Option Control Panel, temperature sensor, well, sensor clip, instructions, Unit Pack
Aquastat Limit Control, IQ Option Card, 130-220 Deg F, 15 Deg F Adjustable
102717-01
Differential, Auto Reset, for use with Option Control Panel, temperature sensor, well, sensor clip,
instructions, Unit Pack
Aquastat Limit Control IQ Option Card, 130-220 Deg F, Manual Reset for use with
102292-01
Option Control Panel, Less well, Less Sensor, Unit Pack
Aquastat Limit Control, IQ Option Card, 130-220 Deg F, 15 Deg F Adjustable
102293-01
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
Err
18
Internal Failure
Err 119
Sensor Failure
Lockout, manual reset
Err
25
required
Page 7 of 7
Boiler / Control Action(s)
Replace Control
Temperature sensor or interface failure (open or short connection or
increased connection resistance, dual sensor mismatch) or control
hardware failure
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
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