Pool Boiler Temperature Controller - Revision history

Matt Parnell: /* High Operator */

2022-01-04T16:37:09Z

High Operator

← Older revision		Revision as of 16:37, 4 January 2022
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	* All conditions for the [[#Low Operator\|low operator]] are met.		* All conditions for the [[#Low Operator\|low operator]] are met.
	* The main valve (MV) is active.
	* The boiler temperature is below the second stage threshold (timing rules apply).		* The boiler temperature is below the second stage threshold (timing rules apply).

Matt Parnell: /* High Operator */

2022-01-04T16:36:43Z

High Operator

← Older revision		Revision as of 16:36, 4 January 2022
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	=== High Operator ===		=== High Operator ===

	The high operator is activated when the following conditions are true:		The high operator is activated (the relay contact is closed) when the following conditions are true:

	* All conditions for the low operator are met.		* All conditions for the [[#Low Operator\|low operator]] are met.
	* The main valve (MV) is active.		* The main valve (MV) is active.
	* The boiler temperature is below the second stage threshold (timing rules apply).		* The boiler temperature is below the second stage threshold (timing rules apply).

Matt Parnell: /* Low Operator */

2022-01-04T16:36:12Z

Low Operator

← Older revision		Revision as of 16:36, 4 January 2022
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	=== Low Operator ===		=== Low Operator ===

	The low operator is activated when the following conditions are true:		The low operator is activated (the relay contact is closed) when the following conditions are true:

	* The RTD is producing valid feedback (not shorted or open-circuit).		* The RTD is producing valid feedback (not shorted or open-circuit).

Matt Parnell: /* Low Operator */

2022-01-04T16:35:38Z

Low Operator

← Older revision		Revision as of 16:35, 4 January 2022
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	* The RTD is producing valid feedback (not shorted or open-circuit).		* The RTD is producing valid feedback (not shorted or open-circuit).
	* The boiler temperature is below the high-temperature fault threshold (timing rules apply).		* The boiler temperature is below the high temperature fault threshold (timing rules apply).

	The low operator may be released when any of the prior conditions are no longer met. In addition, it may be released when:		The low operator may be released when any of the prior conditions are no longer met. In addition, it may be released when:

Matt Parnell: /* Low Operator */

2022-01-04T16:35:26Z

Low Operator

← Older revision		Revision as of 16:35, 4 January 2022
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	* The RTD is producing valid feedback (not shorted or open-circuit).		* The RTD is producing valid feedback (not shorted or open-circuit).
	* The boiler temperature is below the ~~over~~-temperature ~~shutdown~~ threshold (timing rules apply).		* The boiler temperature is below the high-temperature fault threshold (timing rules apply).

	The low operator may be released when any of the prior conditions are no longer met. In addition, it may be released when:		The low operator may be released when any of the prior conditions are no longer met. In addition, it may be released when:

Matt Parnell: /* Low Operator */

2022-01-04T16:33:32Z

Low Operator

← Older revision		Revision as of 16:33, 4 January 2022
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	The low operator is activated when the following conditions are true:		The low operator is activated when the following conditions are true:

	* A call for heat is present.
	* The RTD is producing valid feedback (not shorted or open-circuit).		* The RTD is producing valid feedback (not shorted or open-circuit).
	* The boiler temperature is below the over-temperature shutdown threshold (timing rules apply).		* The boiler temperature is below the over-temperature shutdown threshold (timing rules apply).

Matt Parnell: /* Threshold Adjustment */

2022-01-03T00:11:28Z

Threshold Adjustment

← Older revision		Revision as of 00:11, 3 January 2022
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	=== Threshold Adjustment ===		=== Threshold Adjustment ===

	Threshold adjustment is typically not necessary or recommended.		Threshold adjustment is typically not necessary or recommended. Instead, it is recommended that the system be evaluated for deficiencies.

	If a parameter must be adjusted, press the scroll button (left of the down arrow) to move the up/down cursor to the desired parameter. Press the up/down keys to adjust the temperature. Internal bounds limit how high or low a parameter may be adjusted. Use extreme caution in adjusting each parameter, as each could have significant impacts upon boiler operation.		If a parameter must be adjusted, press the scroll button (left of the down arrow) to move the up/down cursor to the desired parameter. Press the up/down keys to adjust the temperature. Internal bounds limit how high or low a parameter may be adjusted. Use extreme caution in adjusting each parameter, as each could have significant impacts upon boiler operation.

Matt Parnell: /* LCD Display */

2022-01-03T00:10:36Z

LCD Display

← Older revision		Revision as of 00:10, 3 January 2022
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	=== LCD Display ===		=== LCD Display ===

	An LCD display on the front of the controller indicates the measured temperature of the boiler manifold (top-most value). A graphical bar shows the value relative to the typical minimum and maximum operating ~~thresholds~~. Temperature thresholds for a [[#Low Temperature Fault\|Low Temperature Fault]], [[#Stage 2\|Stage 2]] operation, and a [[#High Temperature Fault\|High Temperature Fault]] are displayed on the subsequent lines. All temperatures are displayed in degrees Fahrenheit.		An LCD display on the front of the controller indicates the measured temperature of the boiler manifold (top-most value). A graphical bar shows the value relative to the typical minimum and maximum operating bounds. Temperature thresholds for a [[#Low Temperature Fault\|Low Temperature Fault]], [[#Stage 2\|Stage 2]] operation, and a [[#High Temperature Fault\|High Temperature Fault]] are displayed on the subsequent lines. All temperatures are displayed in degrees Fahrenheit.

	The <tt>OP1</tt> and <tt>OP2</tt> indicators (beacons) indicate that [[#Stage 1\|Stage 1]] and/or [[#Stage 2\|Stage 2]] operation is active, respectively. An <tt>ALM</tt> indicator is associated with a fault condition; user intervention may be required to restore boiler operation. Blinking <tt>H</tt> and/or <tt>J</tt> indicators indicate communication port activity.		The <tt>OP1</tt> and <tt>OP2</tt> indicators (beacons) indicate that [[#Stage 1\|Stage 1]] and/or [[#Stage 2\|Stage 2]] operation is active, respectively. An <tt>ALM</tt> indicator is associated with a fault condition; user intervention may be required to restore boiler operation. Blinking <tt>H</tt> and/or <tt>J</tt> indicators indicate communication port activity.

Matt Parnell: /* As-Shipped Configuration */

2022-01-02T20:45:34Z

As-Shipped Configuration

← Older revision		Revision as of 20:45, 2 January 2022
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	\|LO		\|LO
	\|Isolated Single Logic Output		\|Isolated Single Logic Output
	\|		\|May not be used.
	\|-		\|-
	!IO Slot 2		!IO Slot 2
	\|D4		\|D4
	\|DC Control		\|DC Control
	\|Will not be used.		\|Will not be used; see modifications below.
	\|-		\|-
	!IO Slot 3		!IO Slot 3
	\|TK		\|TK
	\|Triple Contact Input		\|Triple Contact Input
	\|		\|May not be used.
	\|-		\|-
	!H Comms Slot		!H Comms Slot
	\|PD		\|PD
	\|Profibus with D-type Connector		\|Profibus with D-type Connector
	\|Module is an AH026222U002.		\|Module is an AH026222U002 (visually identified).
	\|-		\|-
	!J Comms Slot		!J Comms Slot

Matt Parnell: /* As-Shipped Configuration */

2022-01-02T20:44:00Z

As-Shipped Configuration

← Older revision		Revision as of 20:44, 2 January 2022
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	=== As-Shipped Configuration ===		=== As-Shipped Configuration ===

			When shipped from the factory, a long configuration code is printed on the side of the controller to identify the configuration. The code on the installed controller is decoded below:

	{\| class="wikitable"		{\| class="wikitable"