Boiler Control: Internal Wiring & Operation; Control Overview - RBI IEW-199 Installation And Operation Instructions Manual

8. BOILER CONTROL: INTERNAL
WIRING & OPERATION
A. CONTROL OVERVIEW
The Infinite Energy boiler control is one of the primary
safety devices for the boiler. It controls the ignition
sequence, temperature limits, pumps and gas flow to the
boiler. It also provides many unique features.
Table 8.1: Domestic Hot Water (DHW) Modes
DHW
Display Text
Mode
1 DHW Tank with Sensor
2 DHW Tank with Thermostat
3 External DHW Setpoint Control
Table 8.2: Control Features
Feature
DHW Tank Prevents boiler from ramping up to high power if the DHW demand is only to keep the tank warm.
Warm Hold This feature is only available if the tank sensor is used.
The control will allow the installer to operate the boiler at low power, high power and ignition input
System Test
for setup and troubleshooting purposes.
Flow Switch The "Add'l Safety Functions" feature allows the installer to choose between a low water cutoff and
Capability a flow switch for water level safety shutdown.
Restore This feature allows the installer or service person to restore all of the factory parameters to the
System Defaults factory defaults if desired. The site settings can also be stored and reset.
If enabled, the Infinite Energy control will display a service notification after an installer defined num-
Service Notification
ber of hours or cycles. It can also display a notification based on a date of the installers choosing.
The Infinite Energy control allows service personnel to access the last 15 Blocking Errors and the
Fault History
last 15 Lockout Errors in addition to records of the interval between Errors.
Vent Temperature Reduces the firing rate if the vent temperature approaches the maximum limit of the vent material.
Safety Limit If the vent temperature continues to climb, the Infinite Energy control will shut down the boiler.
Adjustable This feature allows the installer to increase the blower postpurge to counteract the effects of high
Blower Postpurge winds or unusual wind currents.
This troubleshooting tool captures the flame signal at four increments during the two second flame
Flame Signal Log proving period. This can help the installer or service person to quickly diagnose problems with
flame rectification.
Activates pumps if temperatures fall below the specified value. If the temperatures continue to fall,
Freeze Protection
the boiler is activated at a minimum firing rate.
BOILER CONTROL: INTERNAL WIRING & OPERATION
Brief Description
The domestic hot water tank is equipped with a temperature sensor. The
Infinite Energy control modulates the boiler firing rate based on supply water
and tank temperatures.
The domestic hot water tank is equipped with a thermostat. The Infinite
Energy control responds to a demand from the thermostat and modulates the
boiler firing rate targeting the boiler supply setpoint.
An external 0-10 VDC analog input (ie. from a Building Management System)
is supplied to adjust the domestic hot water tank setpoint temperature.
(Additional hardware is required.)
Brief Description
The control provides 3 domestic hot water modes and
can be adapted to several different piping schemes.
To provide maximum flexibility, several special features
are also included
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