U.S. Boiler Company SERIES 3, Инструкция по установке, эксплуатации и обслуживанию

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APPENDIX I – IQ CONTROL SYSTEM
IQ Control System Overview
The “IQ Control System” consists of a 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.
• 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 Intelligent
Hydronic Control. The control replaces the
traditional separate ignition control, primary boiler
aquastat, as well as the fan and circulator relays.
The 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.
Control: P/N 103660-01
The IQ Option Panel works together with the control to
provide an easy and convenient means to add factory-
engineered auxiliary boiler control features. When
installed into the IQ Option 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 Option Panel: P/N 102291-01