5
APPENDIX H – IQ CONTROL SYSTEM
IQ Control System overview
The “IQ Control System” consists of an IQ Boiler
Control and an IQ Option Panel with optional “plug
in” cards:
• Fully integrates both factory and field
installed components, simplifying installation
and troubleshooting.
• Efficiently operates the entire boiler system
to save energy.
The IQ Option Panel works together with the IQ Oil
Boiler Control to provide an easy and convenient
means to add factory-engineered auxiliary boiler
control features. When installed into the IQ Option
• Ensures adequate heat and supply of
domestic hot water.
• UL / CSA Listed or Recognized and tested
as part of a complete system.
•
Communicate with other EnviraCom
™
enabled components to provide a complete
system solution to maximize comfort and
energy efficiency.
The heart of IQ Control System is the IQ Boiler
Control. The IQ Boiler Control replaces the
traditional separate ignition control, primary boiler
aquastat, as well as the fan and circulator relays.
The IQ Boiler Control stores two boiler supply
temperature setpoints in its memory; one setpoint
is for the High Limit Setting and the second is for
the Operating Setpoint.
When the optional Outdoor Air Reset Card is
installed in the IQ Option Panel, the Operating
Setpoint temperature is automatically adjusted
according to the outdoor temperature. For
example, as the outdoor temperature increases
the Operating Setpoint temperature is reduced
from the High Limit Setting to save energy
while improving home comfort. By better
matching boiler heat supply to actual home
heat demand, room air temperatures are more
closely maintained. In addition, when there is
a domestic hot water (DWH) heat request, the
Operating Setpoint temperature is automatically
adjusted to a DHW Setpoint to satisfy the DWH
heating requirements. When the Outdoor
Air Reset Card is not installed the Operating
Setpoint equals High Limit Setting.
Panel, IQ Option Cards provide plug-'n-play high
temperature limit, low water cut-off and outdoor reset
controls. A separate 3-digit LED readout displays
settings, status and diagnostic information for all
installed IQ Option Cards making them simpler and
functionally superior to stand alone auxiliary controls.
IQ Option Cards are available for the following
features:
• Outdoor Air Reset with Domestic Hot Water
Demand
• Auxiliary High Temperature Limit (available in
auto reset or manual reset versions)
• Low Water Cut-off (available in auto reset or
manual reset versions)
IQ Boiler Control: P/N 102290-01
IQ option Panel: P/N 102291-01
Summary of Contents for ESC
Page 6: ... Figure S 1 Minimum Clearances to Combustibles SPECIFICATIONS continued ...
Page 30: ...30 Internal Wiring Figure IW 1 Wiring Diagram ...
Page 31: ...31 Internal Wiring continued Figure IW 2 Wiring Diagram ...
Page 37: ...37 APPENDIX B1 INTENTIONALLY OMITTED ...
Page 50: ...50 Figure D 0 Piping Schematic Symbols APPENDIX D System Piping continued ...
Page 62: ...62 SERVICE RECORD DATE SERVICE PERFORMED ...
