Webasto HVH50 - Revision history

Tom91: Categories

2024-12-20T16:19:22Z

Jsimonkeller at 20:03, 3 March 2024

2024-03-03T20:03:15Z

← Older revision		Revision as of 20:03, 3 March 2024
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	[[File:Webasto HVH50.jpg\|thumb\|232x232px\|Webasto HVH50 water heater]]		[[File:Webasto HVH50.jpg\|thumb\|232x232px\|Webasto HVH50 water heater]]
	The Webasto HVH series are electrical water heaters typically used in popular PHEV.		The Webasto HVH series are electrical water heaters typically used in popular PHEV. They come in various models, such as the HVH50, HVH50plus, HVH70plus, HVH100 and in versions that run up to 400V and 800V.

	== Connectors ==		== Connectors ==
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	Some units allow control via a simple on off signal on Pin 3 (12V=heat up liquid to 85°C) and some units allow a strange PWM control between 50-100Hz where 25%-81% duty cycles allow setting various power levels. On my ebay unit this did not work. Only 12V and LIN needed to be connected, all else unconnected.		Some units allow control via a simple on off signal on Pin 3 (12V=heat up liquid to 85°C) and some units allow a strange PWM control between 50-100Hz where 25%-81% duty cycles allow setting various power levels. On my ebay unit this did not work. Only 12V and LIN needed to be connected, all else unconnected.

			A discussion of the various ways to program this heater can be found at https://openinverter.org/forum/viewtopic.php?t=1565

	[[Category:OEM]] [[Category:Webasto]] [[Category:HVAC]]		[[Category:OEM]] [[Category:Webasto]] [[Category:HVAC]]

Jsimonkeller at 19:57, 3 March 2024

2024-03-03T19:57:33Z

← Older revision		Revision as of 19:57, 3 March 2024
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	\|		\|
	\|}		\|}
	IDs in () are from the manual, the other ones are those I actually found. IDs in [] are from a 2017 Volvo XC90/XC60/S90 HVH50 heater.		IDs in () are from the manual in 19200 baud, the other ones are those I actually found in 9600 baud. IDs in [] are from a 2017 Volvo XC90/XC60/S90 HVH50 heater running at 19200 baud.

	Some units allow control via a simple on off signal on Pin 3 (12V=heat up liquid to 85°C) and some units allow a strange PWM control between 50-100Hz where 25%-81% duty cycles allow setting various power levels. On my ebay unit this did not work. Only 12V and LIN needed to be connected, all else unconnected.		Some units allow control via a simple on off signal on Pin 3 (12V=heat up liquid to 85°C) and some units allow a strange PWM control between 50-100Hz where 25%-81% duty cycles allow setting various power levels. On my ebay unit this did not work. Only 12V and LIN needed to be connected, all else unconnected.

	[[Category:OEM]] [[Category:Webasto]] [[Category:HVAC]]		[[Category:OEM]] [[Category:Webasto]] [[Category:HVAC]]

Jsimonkeller at 19:56, 3 March 2024

2024-03-03T19:56:17Z

← Older revision		Revision as of 19:56, 3 March 2024
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	== Communication & Control ==		== Communication & Control ==
	While there is a document describing the [https://~~www2.calact~~.org/~~assets~~/~~4d.%20Heater%20Info%20-%209035422C_II-OI_HVH_50_and_70_EN%2019-01%20PMC~~.~~pdf~~ LIN interface] , Webasto seems to have altered the interface for different OEMs. According to the document, LIN bus speed is 19200 but on a unit obtained from ebay it was 9600. So always try both.		While there is a document describing the [https://openinverter.org/forum/download/file.php?id=8774 LIN interface] , Webasto seems to have altered the interface for different OEMs. According to the document, LIN bus speed is 19200 but on a unit obtained from ebay it was 9600. So always try both.

	The data format found on one device is as follows. The scaling is identical to the document. The document is not clear on bit positions, so they may or may not be compatible		The data format found on one device is as follows. The scaling is identical to the document. The document is not clear on bit positions, so they may or may not be compatible
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	\|-		\|-
	\|Write power		\|Write power
	\|21 (35)		\|21 (35) [34]
	\|Power limit		\|Power limit
	1 digit=40W		1 digit=40W
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	\|-		\|-
	\|Read Meas		\|Read Meas
	\|22 (24)		\|22 (24) [39]
	\|Status		\|Status
	4=running		4=running
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	\|		\|
	\|}		\|}
	IDs in () are from the manual, the other ones are those I actually found.		IDs in () are from the manual, the other ones are those I actually found. IDs in [] are from a 2017 Volvo XC90/XC60/S90 HVH50 heater.

	Some units allow control via a simple on off signal on Pin 3 (12V=heat up liquid to 85°C) and some units allow a strange PWM control between 50-100Hz where 25%-81% duty cycles allow setting various power levels. On my ebay unit this did not work. Only 12V and LIN needed to be connected, all else unconnected.		Some units allow control via a simple on off signal on Pin 3 (12V=heat up liquid to 85°C) and some units allow a strange PWM control between 50-100Hz where 25%-81% duty cycles allow setting various power levels. On my ebay unit this did not work. Only 12V and LIN needed to be connected, all else unconnected.

	[[Category:OEM]] [[Category:Webasto]] [[Category:HVAC]]		[[Category:OEM]] [[Category:Webasto]] [[Category:HVAC]]

Jsimonkeller at 14:46, 23 December 2023

2023-12-23T14:46:58Z

← Older revision		Revision as of 14:46, 23 December 2023
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	The HV connector is a Tyco HVA280 connector with A-key (might be different on other devices). Part # HVA 280 / TE Internal #: '''4-2103177-2''' / TE Internal Description: PLUG ASSY, KEY B, FA,CPA, HVA280-2PHI XE<ref>https://www.te.com/usa-en/product-4-2103177-2.html</ref>.		The HV connector is a Tyco HVA280 connector with A-key (might be different on other devices). Part # HVA 280 / TE Internal #: '''4-2103177-2''' / TE Internal Description: PLUG ASSY, KEY B, FA,CPA, HVA280-2PHI XE<ref>https://www.te.com/usa-en/product-4-2103177-2.html</ref>.

	The small center pins are for interlock (detect that the connector is seated). The right pin (with tab facing upwards) is HV+, the left one HV-		The small center pins are for interlock (detect that the connector is seated). The right pin on the connector (FIG 16 / with tab facing upwards) is HV+, the left one HV-

	The LV connector is best found by the VW part number 1J0973714		The LV connector is best found by the VW part number 1J0973714

Jsimonkeller at 14:37, 23 December 2023

2023-12-23T14:37:07Z

← Older revision		Revision as of 14:37, 23 December 2023
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	[[File:Webasto1.jpg\|left\|thumb\|Low Voltage Connector Pin Layout]]		[[File:Webasto1.jpg\|left\|thumb\|Low Voltage Connector Pin Layout]]
	[[File:Webasto2.jpg\|thumb\|Pin Layout For HV Connector]]		[[File:Webasto2.jpg\|thumb\|Pin Layout For HV Connector]]

Jsimonkeller at 14:36, 23 December 2023

2023-12-23T14:36:38Z

← Older revision		Revision as of 14:36, 23 December 2023
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	[[File:Webasto1.jpg\|left\|thumb\|Low Voltage Connector Pin Layout]]		[[File:Webasto1.jpg\|left\|thumb\|Low Voltage Connector Pin Layout]]
	[[File:Webasto2.jpg\|thumb\|Pin Layout For HV Connector]]		[[File:Webasto2.jpg\|thumb\|Pin Layout For HV Connector]]

Jsimonkeller: /* Communication & Control */

2023-12-23T14:36:00Z

Communication & Control

← Older revision		Revision as of 14:36, 23 December 2023
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	~~----~~

Jsimonkeller at 14:35, 23 December 2023

2023-12-23T14:35:25Z

← Older revision	Revision as of 14:35, 23 December 2023
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		----

Jsimonkeller at 14:34, 23 December 2023

2023-12-23T14:34:14Z

← Older revision		Revision as of 14:34, 23 December 2023
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	[[File:Webasto1.jpg\|left\|thumb\|Low Voltage Connector Pin Layout]]		[[File:Webasto1.jpg\|left\|thumb\|Low Voltage Connector Pin Layout]]
	[[File:Webasto2.jpg\|thumb\|Pin Layout For HV Connector]]		[[File:Webasto2.jpg\|thumb\|Pin Layout For HV Connector]]

← Older revision		Revision as of 16:19, 20 December 2024
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	A discussion of the various ways to program this heater can be found at https://openinverter.org/forum/viewtopic.php?t=1565		A discussion of the various ways to program this heater can be found at https://openinverter.org/forum/viewtopic.php?t=1565
			[[Category:Webasto]]
	~~[[Category:OEM]]~~ [[Category:Webasto]] [[Category:~~HVAC~~]]		<references />
			[[Category:Heater Coolant]]