AFRC Overview - Revision history

Thomas Peterson: /* Overview */

2023-08-22T21:18:16Z

Overview

← Older revision		Revision as of 21:18, 22 August 2023
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	\| 20235 \|\| AFRC-Dual Richburn \|\| 1 or 2 \|\| 0		\| 20235 \|\| AFRC-Dual Richburn \|\| 1 or 2 \|\| 0
	\|-		\|-
	\| ~~20320~~ \|\| AFRC-Dual Rich or Leanburn \|\| 1 or 2 \|\| 1 or 2		\| 20230 \|\| AFRC-Dual Rich or Leanburn \|\| 1 or 2 \|\| 1 or 2
	\|}		\|}

Thomas Peterson: /* AFRC Documents and Guides */

2023-05-26T19:56:07Z

AFRC Documents and Guides

← Older revision		Revision as of 19:56, 26 May 2023
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	[[Spare_Parts_Reference#AFRC\|AFRC Parts]]		[[Spare_Parts_Reference#AFRC\|AFRC Parts]]

			[[AFRC to EIM Wiring Diagrams]]

	=== Minor Topics ===		=== Minor Topics ===

Thomas Peterson: /* AFRC Documents and Guides */

2022-12-01T19:00:09Z

AFRC Documents and Guides

← Older revision		Revision as of 19:00, 1 December 2022
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	[[AFRC Map Setup]]		[[AFRC Map Setup]]

			[[Spare_Parts_Reference#AFRC\|AFRC Parts]]

	=== Minor Topics ===		=== Minor Topics ===

Thomas Peterson at 15:59, 18 August 2022

2022-08-18T15:59:43Z

← Older revision		Revision as of 15:59, 18 August 2022
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			See the bottom part of this page for a general overview, or the articles below for specific topics.
	==AFRC Documents and Guides==		==AFRC Documents and Guides==

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	[[File:20230-AFRCA assembly ISO.jpg\|500px]]		[[File:20230-AFRCA assembly ISO.jpg\|500px]]

	The EMIT air/fuel ratio controller (AFRC) is available in ~~two~~ offerings: ~~the~~ AFRC ~~Advanced Single bank~~ (20360~~) and~~ AFRC ~~Advanced~~ Dual ~~bank (20230). Both~~ controllers are designed to control turbocharged or naturally aspirated carbureted stationary natural gas or propane engines for either rich-burn or lean-burn applications. The AFRC Advanced Dual is equipped to control a dual or single-bank engine with multiple options available for sensory monitoring, multi-setpoint control, and an optional control algorithm, Auto Control. The AFRC Advanced Single bank offers the same setpoint, multi-setpoint, and Auto control as the AFRC Advanced Dual but only covers single bank and narrowband applications. Unless otherwise noted, ~~both~~ controllers will be referred to simply as “AFRC” through the remainder of the manual.		The EMIT air/fuel ratio controller (AFRC) is available in several offerings:

			{\| class="wikitable" style="margin:auto"
			\|+ AFRC Item Numbers
			\|-
			! Item Number !! Description !! Richburn (Narrowband) Banks !! Leanburn (Wideband) Banks
			\|-
			\| 20360 \|\| AFRC-Single Richburn \|\| 1 \|\| 0
			\|-
			\| 20235 \|\| AFRC-Dual Richburn \|\| 1 or 2 \|\| 0
			\|-
			\| 20320 \|\| AFRC-Dual Rich or Leanburn \|\| 1 or 2 \|\| 1 or 2
			\|}

			All controllers are designed to control turbocharged or naturally aspirated carbureted stationary natural gas or propane engines for either rich-burn or lean-burn applications. The AFRC Advanced Dual is equipped to control a dual or single-bank engine with multiple options available for sensory monitoring, multi-setpoint control, and an optional control algorithm, Auto Control. The AFRC Advanced Single bank offers the same setpoint, multi-setpoint, and Auto control as the AFRC Advanced Dual but only covers single bank and narrowband applications. Unless otherwise noted, the controllers will be referred to simply as “AFRC” through the remainder of the manual.

	Use of the AFR controller with an appropriate catalytic converter can result in dramatic reductions in exhaust gas pollutants, particularly Oxides of Nitrogen (NOx), Carbon Monoxide (CO), and Hydrocarbons (HC). Rich-burn NSCR catalytic converters require a constant oxygen content of less than 0.5% from the engine in order to work effectively – the AFRC provides the control needed to maintain that constant oxygen concentration. In lean burn applications, the use of the AFRC with an oxidation catalyst can result in dramatic reductions in exhaust gas pollutants of Carbon Monoxide (CO), Hydrocarbons (HC) and Volatile Organic Compounds (VOC).		Use of the AFR controller with an appropriate catalytic converter can result in dramatic reductions in exhaust gas pollutants, particularly Oxides of Nitrogen (NOx), Carbon Monoxide (CO), and Hydrocarbons (HC). Rich-burn NSCR catalytic converters require a constant oxygen content of less than 0.5% from the engine in order to work effectively – the AFRC provides the control needed to maintain that constant oxygen concentration. In lean burn applications, the use of the AFRC with an oxidation catalyst can result in dramatic reductions in exhaust gas pollutants of Carbon Monoxide (CO), Hydrocarbons (HC) and Volatile Organic Compounds (VOC).

	The air fuel ratio of the engine is maintained by setting the appropriate oxygen sensor target setpoint that corresponds with the desired emissions reduction. The controller automatically targets and maintains the setpoint by adjusting the valve position which allows or restricts the amount gas streamed into the mixer which then richens or leans the engine. The valve is moved and stabilized using a finely-tuned Proportional Integral Derivative (PID) control loop that automatically adjusts the correct valve position quickly with little overshoot or error. If desired, multiple setpoints can be used to automatically change the target setpoint based on sensor readings through the AFRC’s mapping feature. In addition to this “Setpoint” control type, the AFRC Advanced offers optional “Auto Control” configuration for single bank or dual bank rich burn engines that can efficiently find and maintain the optimum target setpoint automatically for maximum emissions reduction. No setpoint adjustment or multi-setpoint mapping is required.		The air fuel ratio of the engine is maintained by setting the appropriate oxygen sensor target setpoint that corresponds with the desired emissions reduction. The controller automatically targets and maintains the setpoint by adjusting the valve position which allows or restricts the amount gas streamed into the mixer which then richens or leans the engine. The valve is moved and stabilized using a finely-tuned Proportional Integral Derivative (PID) control loop that automatically adjusts the correct valve position quickly with little overshoot or error. If desired, multiple setpoints can be used to automatically change the target setpoint based on sensor readings through the AFRC’s mapping feature. In addition to this “Setpoint” control type, the AFRC Advanced offers optional “Auto Control” configuration for single bank or dual bank rich burn engines that can efficiently find and maintain the optimum target setpoint automatically for maximum emissions reduction. No setpoint adjustment or multi-setpoint mapping is required.

Thomas Peterson: /* AFRC Documents and Guides */

2022-08-04T15:32:57Z

AFRC Documents and Guides

← Older revision		Revision as of 15:32, 4 August 2022
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	[[AFRC Map Setup]]		[[AFRC Map Setup]]

			=== Minor Topics ===

			[[20360 O2 Heater Pin Issue]]

	== Overview ==		== Overview ==

Thomas Peterson: /* AFRC Documents and Guides */

2022-08-04T15:23:45Z

AFRC Documents and Guides

← Older revision		Revision as of 15:23, 4 August 2022
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	[[AFRC Map Setup]]		[[AFRC Map Setup]]

	~~[[AFRC Run Signal Trigger and System Temperature Units]]~~

	== Overview ==		== Overview ==

Thomas Peterson: /* AFRC Documents and Guides */

2022-08-04T15:22:54Z

AFRC Documents and Guides

← Older revision		Revision as of 15:22, 4 August 2022
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	[[AFRC Controlling the Engine]]		[[AFRC Controlling the Engine]]

	~~[[AFRC Engineering Adjustments]]~~

	[[AFRC Map Setup]]		[[AFRC Map Setup]]

Thomas Peterson: /* AFRC Documents and Guides */

2022-08-04T15:02:11Z

AFRC Documents and Guides

← Older revision		Revision as of 15:02, 4 August 2022
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	[[AFRC Setup]]		[[AFRC Setup]]

	[[AFRC ~~Auto Control Range Alarm~~]]		[[AFRC Controlling the Engine]]

	[[AFRC Engineering Adjustments]]		[[AFRC Engineering Adjustments]]

Thomas Peterson: /* Overview */

2022-08-04T14:39:31Z

Overview

← Older revision		Revision as of 14:39, 4 August 2022
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	[[File:20230-AFRCA assembly ISO.jpg\|500px]]		[[File:20230-AFRCA assembly ISO.jpg\|500px]]

	The EMIT air/fuel ratio controller (AFRC) is available in two offerings: the AFRC Advanced Single bank (20360) and AFRC Advanced Dual bank (~~20320~~). Both controllers are designed to control turbocharged or naturally aspirated carbureted stationary natural gas or propane engines for either rich-burn or lean-burn applications. The AFRC Advanced Dual is equipped to control a dual or single-bank engine with multiple options available for sensory monitoring, multi-setpoint control, and an optional control algorithm, Auto Control. The AFRC Advanced Single bank offers the same setpoint, multi-setpoint, and Auto control as the AFRC Advanced Dual but only covers single bank and narrowband applications. Unless otherwise noted, both controllers will be referred to simply as “AFRC” through the remainder of the manual.		The EMIT air/fuel ratio controller (AFRC) is available in two offerings: the AFRC Advanced Single bank (20360) and AFRC Advanced Dual bank (20230). Both controllers are designed to control turbocharged or naturally aspirated carbureted stationary natural gas or propane engines for either rich-burn or lean-burn applications. The AFRC Advanced Dual is equipped to control a dual or single-bank engine with multiple options available for sensory monitoring, multi-setpoint control, and an optional control algorithm, Auto Control. The AFRC Advanced Single bank offers the same setpoint, multi-setpoint, and Auto control as the AFRC Advanced Dual but only covers single bank and narrowband applications. Unless otherwise noted, both controllers will be referred to simply as “AFRC” through the remainder of the manual.

	Use of the ~~AFRC~~ controller with an appropriate catalytic converter can result in dramatic reductions in exhaust gas pollutants, particularly Oxides of Nitrogen (NOx), Carbon Monoxide (CO), and Hydrocarbons (HC). Rich-burn NSCR catalytic converters require a constant oxygen content of less than 0.5% from the engine in order to work effectively – the AFRC provides the control needed to maintain that constant oxygen concentration. In lean burn applications, the use of the AFRC with an oxidation catalyst can result in dramatic reductions in exhaust gas pollutants of Carbon Monoxide (CO), Hydrocarbons (HC) and Volatile Organic Compounds (VOC).		Use of the AFR controller with an appropriate catalytic converter can result in dramatic reductions in exhaust gas pollutants, particularly Oxides of Nitrogen (NOx), Carbon Monoxide (CO), and Hydrocarbons (HC). Rich-burn NSCR catalytic converters require a constant oxygen content of less than 0.5% from the engine in order to work effectively – the AFRC provides the control needed to maintain that constant oxygen concentration. In lean burn applications, the use of the AFRC with an oxidation catalyst can result in dramatic reductions in exhaust gas pollutants of Carbon Monoxide (CO), Hydrocarbons (HC) and Volatile Organic Compounds (VOC).

	The air fuel ratio of the engine is maintained by setting the appropriate oxygen sensor target setpoint that corresponds with the desired emissions reduction. The controller automatically targets and maintains the setpoint by adjusting the valve position which allows or restricts the amount gas streamed into the mixer which then richens or leans the engine. The valve is moved and stabilized using a finely-tuned Proportional Integral Derivative (PID) control loop that automatically adjusts the correct valve position quickly with little overshoot or error. If desired, multiple setpoints can be used to automatically change the target setpoint based on sensor readings through the AFRC’s mapping feature. In addition to this “Setpoint” control type, the AFRC Advanced offers optional “Auto Control” configuration for single bank or dual bank rich burn engines that can efficiently find and maintain the optimum target setpoint automatically for maximum emissions reduction. No setpoint adjustment or multi-setpoint mapping is required.		The air fuel ratio of the engine is maintained by setting the appropriate oxygen sensor target setpoint that corresponds with the desired emissions reduction. The controller automatically targets and maintains the setpoint by adjusting the valve position which allows or restricts the amount gas streamed into the mixer which then richens or leans the engine. The valve is moved and stabilized using a finely-tuned Proportional Integral Derivative (PID) control loop that automatically adjusts the correct valve position quickly with little overshoot or error. If desired, multiple setpoints can be used to automatically change the target setpoint based on sensor readings through the AFRC’s mapping feature. In addition to this “Setpoint” control type, the AFRC Advanced offers optional “Auto Control” configuration for single bank or dual bank rich burn engines that can efficiently find and maintain the optimum target setpoint automatically for maximum emissions reduction. No setpoint adjustment or multi-setpoint mapping is required.

Thomas Peterson: /* Overview */

2022-08-04T13:57:26Z

Overview

← Older revision		Revision as of 13:57, 4 August 2022
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	== Overview ==		== Overview ==

	[[File:20230-AFRCA assembly ISO.jpg]]		[[File:20230-AFRCA assembly ISO.jpg\|500px]]

	The EMIT air/fuel ratio controller (AFRC) is available in two offerings: the AFRC Advanced Single bank (20360) and AFRC Advanced Dual bank (20320). Both controllers are designed to control turbocharged or naturally aspirated carbureted stationary natural gas or propane engines for either rich-burn or lean-burn applications. The AFRC Advanced Dual is equipped to control a dual or single-bank engine with multiple options available for sensory monitoring, multi-setpoint control, and an optional control algorithm, Auto Control. The AFRC Advanced Single bank offers the same setpoint, multi-setpoint, and Auto control as the AFRC Advanced Dual but only covers single bank and narrowband applications. Unless otherwise noted, both controllers will be referred to simply as “AFRC” through the remainder of the manual.		The EMIT air/fuel ratio controller (AFRC) is available in two offerings: the AFRC Advanced Single bank (20360) and AFRC Advanced Dual bank (20320). Both controllers are designed to control turbocharged or naturally aspirated carbureted stationary natural gas or propane engines for either rich-burn or lean-burn applications. The AFRC Advanced Dual is equipped to control a dual or single-bank engine with multiple options available for sensory monitoring, multi-setpoint control, and an optional control algorithm, Auto Control. The AFRC Advanced Single bank offers the same setpoint, multi-setpoint, and Auto control as the AFRC Advanced Dual but only covers single bank and narrowband applications. Unless otherwise noted, both controllers will be referred to simply as “AFRC” through the remainder of the manual.