Specifications

LCD Touch Screen Display
The IQ Touch Screen Display Kit offers the option of adding a state-of-
the-art 3.5” multi-color LCD touch screen display to the ES2 boiler. The
display mounts in a special knock-out in the plastic hood above the front
door of the ES2 boiler and communicates with the IQ Boiler Control and
IQ Option Cards. All boiler settings, status and errors are displayed in
full text on the bright backlit display. The display features easy-to-follow
full-text explanations of all control settings, as well as help screens with
comprehensive diagnostics and troubleshooting information. In the event of
a boiler error or lock-out, the touch screen display turns red and ashes. The
display connects to the IQ control through a simple plug-in connection.
IQ Aquastat Option Card
An additional temperature sensing device that will disable the boiler if
it exceeds the built-in temperature limit. Required by local code in some
areas, the Aquastat Option Card plugs easily into the IQ Option Panel
and connects to the temperature sensor with a single plug-in connection.
IQ Aquastat cards feature built-in diagnostics, adjustable setpoint &
differential, and manual reset versions are compliant with CSD-1 in the
U.S. and Canada.
The IQ Boiler Control System
Available EXCLUSIVELY from
IQ Low Water Cut-Off (LWCO)
Option Card
A safety device designed to disable the boiler if it senses that the
water level has dropped below safe operating limits. In some areas
this device is required by code to be on every new boiler installation.
Available in auto and manual reset versions, the IQ LWCO Option Card
plugs easily into the IQ Option Panel and feature a one-wire connection
to the 3/4” sensor probe which is mounted in the near boiler system
piping. These cards feature built-in diagnostics, adjustable setpoint &
differential, and manual reset versions are compatible with CSD-1 in
the U.S. and Canada.
Burnham IQ Option
card; Low Water
Cutoff with
Manual Reset
Burnham IQ Option card;
Low Water Cutoff with
Automatic Reset
Burnham IQ Option
card; Aquastat with
Manual Reset
Burnham IQ Option
card; Aquastat with
Automatic Reset
Part Number Description
102723-01 IQ Outdoor Reset Option Card
102771-01 IQ LWCO Option Card - Auto Reset
102714-01 IQ LWCO Option Card - Manual Reset
102717-01 IQ Hi Limit (Aquastat) Option Card - Auto Reset
102720-01 IQ HI Limit (Aquastat) Option Card - Manual Reset
IQ Option Card List