Specifications

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APPENDIX I – IQ Control System (continued)
IQ Outdoor Reset Option Card: P/N 102723-01
Installing the IQ Outdoor Reset Option Card is the simplest way to maximize
the efciency of any boiler. The IQ Outdoor Reset Card is a microprocessor-
based control that regulates the water temperature of the heating system
based on the outdoor temperature. By modulating the water temperature of
the heating system, the boiler equipped with an IQ Outdoor Reset Option Card
will deliver annual fuel savings up to 16%, while increasing home comfort. The
IQ Outdoor Reset Option Card is simple to set up yet it includes a powerful list
of features that can be customized for any job.
IQ Oil Boiler Control Operating Setpoint is normally set to the High Limit Setpoint. However, when an IQ
Outdoor Reset Option Card is installed the Operating Setpoint may be reduced to the outdoor reset or
Domestic Hot Water (DHW) Setpoint. When an IQ Outdoor Reset Option Card is added the following user
dened setpoints are available:
• High Limit Setpoint - The High Limit becomes the upper limit for the operating setpoint. The
operating setpoint can not be set higher than this value. The High Limit is set to protect the boiler
and hydronic system from excessive temperature.
• DHW Setpoint - The Operating Setpoint is set to the DHW Setpoint when the Control or Outdoor
Reset Option Card DHW input is energized. This setpoint is set equal to the Indirect Water Heater
manufacturer's recommended water temperature.
• High Boiler Water Temperature - The High Boiler Water Temperature (also known as the "Boiler
Water Design Temperature") setpoint is set to the lowest boiler water temperature that will heat
the home on the home's design day. This adjustment typically depends on the type and quantity
radiation (heating element) installed in the home.
Major Features:
• Selectable DHWP
• Selectable/adjustable DHWP protection
• Selectable/adjustable boost feature
• Simple adjustment of reset curve
Kit Includes:
• IQ Outdoor Reset Option Card
• Outdoor temperature sensor w/mounting bracket & 60” lead
• Instructions
IQ LWCO Option Card (Auto Reset): P/N 102711-01
IQ LWCO Option Card (Manual Reset): P/N 102714-01
IQ LWCO Option Cards add a low water cut-off function to boilers. LWCO
Option Cards plug into the IQ Option Panel and connect to the system-mounted
sensor with a single-wire connection. IQ LWCO Option Cards feature built-in
diagnostics, probe signal strength display, and include a “Test” and “Reset”
feature in compliance with UL 353 and CSA 22.2 for CSD-1 Compliance in US
and Canada.
Kit Includes:
• IQ LWCO Option Card
• 3/4” NPT level sensor
• 36” wire sensor connector
• Instructions
Major Features:
• UL 353 approved
• Displays signal strength
• Warns when probe cleaning required