Tobin - Revision history

Tim: /* Metropolitan Ave */

2023-09-02T21:54:20Z

Metropolitan Ave

← Older revision		Revision as of 17:54, 2 September 2023
Line 34:		Line 34:
	*set the mixing valve at 115-120		*set the mixing valve at 115-120
	*start with a default superstor aquastat diff of 8F and tune from there		*start with a default superstor aquastat diff of 8F and tune from there

			The hypothesis is that the boiler shouldn't come on right away. Less cold water should be required to refill the superstor since the 150 degree water is being mixed down to 115. It will take longer to drop to the differential setpoint delaying the call for heat to the boiler. the hot water temperature at the faucet should be more stable.

	===[http://goo.gl/atwwhw dong]===		===[http://goo.gl/atwwhw dong]===

Tim: /* Metropolitan Ave */

2023-09-02T21:46:50Z

Metropolitan Ave

← Older revision		Revision as of 17:46, 2 September 2023
Line 21:		Line 21:
	36" 107		36" 107

	Every time a hw faucet is turned on (@2g/m) the boiler kicks on. So the boiler is on whenever the how water dips below ~113. The boiler operation seems normal, running whenever there is a call for heat, cycling between its hilimit of 170 and low limit of 140 until the call for heat is satisfied.		What is unsatisfactory about this? Is the water not hot enough?

			Every time a hw faucet is turned on (@2g/m) the boiler kicks on in 0-3min. So the boiler is on whenever the how water dips below ~113. The boiler operation seems normal, running whenever there is a call for heat, cycling between its hilimit of 170 and low limit of 140 until the call for heat is satisfied.

	When all is off and satisfied the boiler shouldn't go on as soon as you turn on the hot water. It defeats the purpose of the superstor tank. The boiler cannot and should not need to keep up with the demand.		When all is off and satisfied the boiler shouldn't go on as soon as you turn on the hot water. It defeats the purpose of the superstor tank. The boiler cannot and should not need to keep up with the demand.

	The differential ~~controller on~~		The superstore aquastat has a hi limit and a differential. The differential is either factory set at something like 8F or is adjustable ~ 5-20F. Since you don't have a mixing valve you have to keep the temperature of the tank at 114 so nobody gets scalded. It doesn't take long to drop that temperature and then it is left to the boiler to continue its normal cycling yet never really catching up. The differential is not really a factor here.

			proposal:
			*add a mixing valve
			*raise the superstor aquastat hi limit to 150
			*set the mixing valve at 115-120
			*start with a default superstor aquastat diff of 8F and tune from there

	===[http://goo.gl/atwwhw dong]===		===[http://goo.gl/atwwhw dong]===
	The .. $10 billion-a-year behemoth ..eyes a North American expansion from its new office in Boston’s Financial District. “[DONG has] more experience than pretty much anybody in the world at this point,” said James Manwell, a professor at the University of Massachusetts Amherst and director of its wind energy center. Samuel Leupold, the head of DONG’s wind operations, ~~said~~ the company recognized that the offshore wind industry was starting to develop in the United States..[and] acquire[d] development rights for 187,500 acres 15 miles south of Martha’s Vineyard. [In UK] its workforce grew from 10 in 2009 to 725 today, and hope that success can be replicated in the United States.		The .. $10 billion-a-year behemoth ..eyes a North American expansion from its new office in Boston’s Financial District. “[DONG has] more experience than pretty much anybody in the world at this point,” said James Manwell, a professor at the University of Massachusetts Amherst and director of its wind energy center. Samuel Leupold, the head of DONG’s wind operations, salid the company recognized that the offshore wind industry was starting to develop in the United States..[and] acquire[d] development rights for 187,500 acres 15 miles south of Martha’s Vineyard. [In UK] its workforce grew from 10 in 2009 to 725 today, and hope that success can be replicated in the United States.

	=4505 N Haight Ave 97217 (NE)=		=4505 N Haight Ave 97217 (NE)=

Tim at 21:18, 2 September 2023

2023-09-02T21:18:39Z

← Older revision		Revision as of 17:18, 2 September 2023
Line 1:		Line 1:
			=Metropolitan Ave=
			Test#2 2gal/min
			3" 112deg water since 1", boiler thermostat calls HW, boiler starts
			6" 112 deg, furnace reaches 140deg, HW heating/zone light on
			9" 103.5deg, furnace 160
			11" 107deg, furnace reaches 170 and turns off, HW still zone on/circulator running
			14" 108deg, furnace restarts @ 140deg
			16" 109
			17" 110
			18.5" 112, furnace off @170, zone on
			19" water off
			20" thermostat call-off, circulator on
			21" 114deg after 1min
			25" 114deg after 1min thermostat off, circulator off
			28" 114 all off
			Water on
			30.5" 114, boiler thermostat calls HW, boiler starts
			31.5" 114 circulator on, furnace 140
			33.5" 109
			35" 106
			36" 107

			Every time a hw faucet is turned on (@2g/m) the boiler kicks on. So the boiler is on whenever the how water dips below ~113. The boiler operation seems normal, running whenever there is a call for heat, cycling between its hilimit of 170 and low limit of 140 until the call for heat is satisfied.

			When all is off and satisfied the boiler shouldn't go on as soon as you turn on the hot water. It defeats the purpose of the superstor tank. The boiler cannot and should not need to keep up with the demand.

			The differential controller on

	===[http://goo.gl/atwwhw dong]===		===[http://goo.gl/atwwhw dong]===
	The .. $10 billion-a-year behemoth ..eyes a North American expansion from its new office in Boston’s Financial District. “[DONG has] more experience than pretty much anybody in the world at this point,” said James Manwell, a professor at the University of Massachusetts Amherst and director of its wind energy center. Samuel Leupold, the head of DONG’s wind operations, said the company recognized that the offshore wind industry was starting to develop in the United States..[and] acquire[d] development rights for 187,500 acres 15 miles south of Martha’s Vineyard. [In UK] its workforce grew from 10 in 2009 to 725 today, and hope that success can be replicated in the United States.		The .. $10 billion-a-year behemoth ..eyes a North American expansion from its new office in Boston’s Financial District. “[DONG has] more experience than pretty much anybody in the world at this point,” said James Manwell, a professor at the University of Massachusetts Amherst and director of its wind energy center. Samuel Leupold, the head of DONG’s wind operations, said the company recognized that the offshore wind industry was starting to develop in the United States..[and] acquire[d] development rights for 187,500 acres 15 miles south of Martha’s Vineyard. [In UK] its workforce grew from 10 in 2009 to 725 today, and hope that success can be replicated in the United States.

Tim: /* heating-beta-2019 */

2019-12-14T15:36:58Z

heating-beta-2019

← Older revision		Revision as of 11:36, 14 December 2019
Line 187:		Line 187:

	==heat and hot water==		==heat and hot water==
	~~===~~heating-~~beta-2019===~~		{{:heating-beta2019}}
	~~https://www.builditsolar.com/Projects/SpaceHeating/Manual_of_Modern_Hydronics_Appendix.pdf~~
	~~https://sitebuilt.net/files/tobin/haight2019-11.jpg~~
	~~====questions from tim====~~
	* why 2 coils in the storage tank
	~~====narrative====~~
	*



	~~<img src="https://sitebuilt.net/files/tobin/haight2019v2%20copy.jpg" width="760"/>~~

	===temporary heat===		===temporary heat===

Tim: /* heating-beta-2019 */

2019-12-14T15:35:36Z

heating-beta-2019

← Older revision		Revision as of 11:35, 14 December 2019
Line 197:		Line 197:


	<img src="https://sitebuilt.net/files/tobin/haight2019v2%20copy.jpg"/>		<img src="https://sitebuilt.net/files/tobin/haight2019v2%20copy.jpg" width="760"/>

	===temporary heat===		===temporary heat===

Tim: /* heating-beta-2019 */

2019-12-14T15:34:55Z

heating-beta-2019

← Older revision		Revision as of 11:34, 14 December 2019
Line 197:		Line 197:


	<img ~~href~~="https://sitebuilt.net/files/tobin/haight2019v2%20copy.jpg"/>		<img src="https://sitebuilt.net/files/tobin/haight2019v2%20copy.jpg"/>

	===temporary heat===		===temporary heat===

Tim: /* heating-beta-2019 */

2019-12-14T15:33:48Z

heating-beta-2019

← Older revision		Revision as of 11:33, 14 December 2019
Line 197:		Line 197:


	https://sitebuilt.net/files/tobin/haight2019v2%20copy.jpg		<img href="https://sitebuilt.net/files/tobin/haight2019v2%20copy.jpg"/>

	===temporary heat===		===temporary heat===

Tim: /* heating-beta-2019 */

2019-12-14T15:32:43Z

heating-beta-2019

← Older revision		Revision as of 11:32, 14 December 2019
Line 194:		Line 194:
	====narrative====		====narrative====
	*		*
	~~https://sitebuilt.net/files/tobin/haight2019v2.jpg~~


	~~[[File:~~https://sitebuilt.net/files/tobin/haight2019v2.jpg~~\|border\|500px]]~~		https://sitebuilt.net/files/tobin/haight2019v2%20copy.jpg

	===temporary heat===		===temporary heat===

Tim: /* narrative */

2019-12-13T18:21:36Z

narrative

← Older revision		Revision as of 14:21, 13 December 2019
Line 194:		Line 194:
	====narrative====		====narrative====
	*		*
	~~<img href="~~https://sitebuilt.net/files/tobin/haight2019v2.jpg~~" width=400 />~~		https://sitebuilt.net/files/tobin/haight2019v2.jpg


	[[File:https://sitebuilt.net/files/tobin/haight2019v2.jpg\|border\|500px]]		[[File:https://sitebuilt.net/files/tobin/haight2019v2.jpg\|border\|500px]]

	===temporary heat===		===temporary heat===
	http://sitebuilt.net/images/tobin-temp-heat.JPG		http://sitebuilt.net/images/tobin-temp-heat.JPG

Tim: /* heat and hot water */

2019-12-13T18:21:02Z

heat and hot water

← Older revision		Revision as of 14:21, 13 December 2019
Line 196:		Line 196:
	<img href="https://sitebuilt.net/files/tobin/haight2019v2.jpg" width=400 />		<img href="https://sitebuilt.net/files/tobin/haight2019v2.jpg" width=400 />


			[[File:https://sitebuilt.net/files/tobin/haight2019v2.jpg\|border\|500px]]
	===temporary heat===		===temporary heat===
	http://sitebuilt.net/images/tobin-temp-heat.JPG		http://sitebuilt.net/images/tobin-temp-heat.JPG