Got it installed tonight with a buddy's help! Just running off the toggle switch for the time being, ran out of time for the command start stuff. It's all interior work from here.
Webasto install HDJ81 (2 Viewers)
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So here's a weird question: as I've only got this hooked up to a toggle switch for the time being, is there any reason you couldn't run the webasto with the engine running, while I'm driving, to allow the engine to warm up quicker? The stop and go traffic I experience leaving downtown do not allow the engine to generate much heat of its own.
Edit: should have just googled it 1st.
Can Webasto heaters be operated while driving?
Yes! Heating while driving is allowed worldwide for all our heaters! This way you can have a cozy and warm interior already when arriving at your holiday destination.
Edit: should have just googled it 1st.
Can Webasto heaters be operated while driving?
Yes! Heating while driving is allowed worldwide for all our heaters! This way you can have a cozy and warm interior already when arriving at your holiday destination.
So I am curious about plumbing through the heater core the way you have it. Does the coolant get hot enough to open the thermostat and heat the coolant in the rad, or is it just heating the block and core?
Ian, I see a piece of solid corrugated plastic in front of your rad. Do you have a hole/holes in it to allow a bit
of airflow? I was led to believe that solid blocking of the rad can cause the airflow over the clutch fan to
be uneven resulting in clutch fan failure. I have a webasto in my 60 with a 12HT, and travel to Yukon.
Right now I have just a canvas cover in front and second canvas behind.
I do in fact drive with my webasto running all the time, I had found out they are made to.
Just curious as to how you cover up for the cold. J
of airflow? I was led to believe that solid blocking of the rad can cause the airflow over the clutch fan to
be uneven resulting in clutch fan failure. I have a webasto in my 60 with a 12HT, and travel to Yukon.
Right now I have just a canvas cover in front and second canvas behind.
I do in fact drive with my webasto running all the time, I had found out they are made to.
Just curious as to how you cover up for the cold. J
It's a piece of signboard (plastic cardboard), and it covers roughly 85% of the rad surface area. I don't currently have any holes in it, and my engine is still slow to get up to operating temp. When I get around to installing my trans cooler I'll cut it out to allow airflow through that section.
I have a similar "winter front" on the wife's GX470, but it is cut out to allow airflow through the trans cooler, so roughly 60% coverage I'd guess. It does make a real difference in getting up to temp on that vehicle.
Nice to hear from someone who has actually used their webasto while driving! Lots of people seem to be under the assumption it wouldn't be good for it.
As I just got it in last night, I can't really speak to this just yet. My assumption is that it would not open the t-stat, and there's really no point in heating the rad as that heat would be lost as quickly as it was generated. A buddy with a webasto on his Cummins says it doesn't get up to operating temp, but that's an engine roughly 1.5X the displacement as mine, so we'll see.
I use mine while driving, hasn't caused me any issues yet. Someone I know installed theirs opposite to natural coolant flow and burned up the Webasto pump in short order.
You might want to consider moving your Webasto fuel filter to be before the pump. Low risk of any issues, but I believe that's where it's supposed to be installed.
Good catch! I'll have to revisit that.
Nice clean install, BTW. My 12HT should run warmer, but I've been told they are a cool running engine so at colder
temps, -15C and colder I absolutely need a winter front of some kind. Just FYI to others, my install is the same.
Hot coolant from the Webasto runs through the cabin heater first, then exits into the engine block to provide warmest
effect through cabin initially. The Webasto heats to 170 F / 76 C and I am fairly certain my thermostat is either the
82 C or 88 C. Therefore it will not open the thermostat. I think I have a defective heater core, as my cabin does not
heat the interior as well as others with a 12HT. I will be looking at looking at that this next couple of months.
temps, -15C and colder I absolutely need a winter front of some kind. Just FYI to others, my install is the same.
Hot coolant from the Webasto runs through the cabin heater first, then exits into the engine block to provide warmest
effect through cabin initially. The Webasto heats to 170 F / 76 C and I am fairly certain my thermostat is either the
82 C or 88 C. Therefore it will not open the thermostat. I think I have a defective heater core, as my cabin does not
heat the interior as well as others with a 12HT. I will be looking at looking at that this next couple of months.
DanS HJ-45
SILVER Star
FWIW, our 12HT will just about smoke us out of the cab. Even at around zero freedom degrees this week we had to turn the blower way down.
We've got an 88 C thermostat, and I didn't even clean out the heater cores when I put the 12HT in, but the truck was pretty clean in general. And I have flushed the engine, radiator and heater cores a couple times to clean it out.
No webasto in that truck. The 12HT does run cool, so it takes a LONG time for it to warm up, but once it's up to temperature our heater is all kinds of hot.
Dan
Dan, I envy you. You are telling me what many other have. Yet I have to wear ski pants in mine. So the
heater core comes out next.
heater core comes out next.
I'm trying to figure out how to wire the Webasto to be triggered off the aux/trunk function on my Compustar 2-way command start, and every time I find reference they are using it in conjunction with one of the timer controls for the Webasto, and I get the impression that it's required to do this. I've currently just got the supplied toggle switch, no timer control. I'm not a wiring guy, so I'm hoping someone familiar can clear this up for me.
My command start guy was talking about "latching" the webasto to the command start, some sort of procedure so the command start maintains a signal on the wire you'd use to trigger the Webasto, but said there was a limit to how long the command start would maintain the "latch" before it would kill the signal, and presumably the Webasto would shut off. This would be fine, but I got the impression the max "latch" time on the Compustar units was something like 20 min, not long enough for what I'm trying to accomplish.
Has anyone done this that could help clear up what needs to be done?
Edit: looks like the timer would provide an auto-shutdown after 2 hours, which would not be present with the toggle switch, and also eliminates the need to have a constant "latched" signal from the command start for the entire time you want the unit to be operating. Looks like a much more simple install with the timer unit.
My command start guy was talking about "latching" the webasto to the command start, some sort of procedure so the command start maintains a signal on the wire you'd use to trigger the Webasto, but said there was a limit to how long the command start would maintain the "latch" before it would kill the signal, and presumably the Webasto would shut off. This would be fine, but I got the impression the max "latch" time on the Compustar units was something like 20 min, not long enough for what I'm trying to accomplish.
Has anyone done this that could help clear up what needs to be done?
Edit: looks like the timer would provide an auto-shutdown after 2 hours, which would not be present with the toggle switch, and also eliminates the need to have a constant "latched" signal from the command start for the entire time you want the unit to be operating. Looks like a much more simple install with the timer unit.
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I initially set my Webasto up with a cheap remote system. I later switched over to the timer and am much happier. The ideal setup would be to have both.
If the remote doesn't latch, you could use a latching relay to turn the heater on for a predetermined amount of time. I think using the Webasto timer with the remote would still be preferable as it would allow you to easily set the amount of time you want the heater to run for and it also allows you to have the heater come on at a preset time when you are out of range or unavailable to activate the heater via remote.
If the remote doesn't latch, you could use a latching relay to turn the heater on for a predetermined amount of time. I think using the Webasto timer with the remote would still be preferable as it would allow you to easily set the amount of time you want the heater to run for and it also allows you to have the heater come on at a preset time when you are out of range or unavailable to activate the heater via remote.
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I would make sure that you can indeed still use an external manual switch or trigger (via remote) with the Webasto timer installed. I can't remember if I saw that in the diagrams or not, it's been a couple years.
I think this is the same conclusion I'm coming to. Next question would be which controller to get.
There's the old style rectangular unit that a lot of people seem to use:
And the newer oval style unit:
It seems really difficult to determine which controllers are compatible with which heaters online. I'm not even 100% sure the oval unit pictured above works with the TSL-17.
Found during my travels on the internet:
"Run a wire from the remote start to pin 7 on the 7 day timer. It requires a negative pulse ! Piece of cake ! "
It's very easy to do a clean install of the old style timer. Not sure about the new one.
I bought a spare console to cut up.
I bought a spare console to cut up.
Spent some time going back and forth with Webasto Tech Support today, turns out the Thermo Top C (TSL-17) that I have is compatible with the Smartemp FX, Smartemp FX 2.0, 1531 (old rectangular style), and 1533 (new oval style, pic attached) timers.
I'm looking for a 1531 (old rectangular style), but they are discontinued. If anyone knows of a source for these, please send it my way.
Edit: Does anyone know if the Espar digital timers are EXACTLY the same as the old Webasto ones? They look the same, but it's what's inside that I'm concerned with.
I'm looking for a 1531 (old rectangular style), but they are discontinued. If anyone knows of a source for these, please send it my way.
Edit: Does anyone know if the Espar digital timers are EXACTLY the same as the old Webasto ones? They look the same, but it's what's inside that I'm concerned with.
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I really like these webasto additional control features. how ever im just saying if you have a existing alarm system you could simply hook these up with a relay to one of your aux ports on the alarm and start it from one of your remote start aux features.
I currently have mine hooked up to one of my aux ports on the alarm with a switch in the dash for manual override to turn the webasto on and off as i wish. also to note as soon as I flick the ignition the webasto it self cancels and goes into shutdown mode. I also have a "viper alarm with Smart start module" and as a bonus I can also start the webasto from my cell phone.
just saying theres many ways to skin a cat.
I currently have mine hooked up to one of my aux ports on the alarm with a switch in the dash for manual override to turn the webasto on and off as i wish. also to note as soon as I flick the ignition the webasto it self cancels and goes into shutdown mode. I also have a "viper alarm with Smart start module" and as a bonus I can also start the webasto from my cell phone.
just saying theres many ways to skin a cat.
Revisiting this, as fall has arrived around here, and I could use the webasto to speed up warm up time, so it was time to try and hook up the 7 day timer. I bought what I THOUGHT was the right old-style 7 day timer, but couldn't figure out the wiring to get it to activate the webasto. What I have doesn't match the wiring diagrams for some reason.
Some further digging, and it looks like what I've got is a 1529 timer, looks almost identical to the 1531, but has a smooth face whereas the 1531 has a circle shape of lines on the upper right of the timer face, and the wiring harness on the back is different, I think what I've got is intended for the interior heaters, rather than for the coolant heaters. Doh!
Called Webasto tech support, I think I've got the wiring figured out to make it work, but the 1529 is not capable of being triggered by a remote start, which was the whole point of the 7-day timer for me. Double doh!
Webasto tech support guy steered me over to Patriot Auto @ 517-548-9851, looks like he bought up a lot of the old stock of these timers, and is selling them for about $150US shipped! Get them while you can, these have been discontinued for a few years now!
Some further digging, and it looks like what I've got is a 1529 timer, looks almost identical to the 1531, but has a smooth face whereas the 1531 has a circle shape of lines on the upper right of the timer face, and the wiring harness on the back is different, I think what I've got is intended for the interior heaters, rather than for the coolant heaters. Doh!
Called Webasto tech support, I think I've got the wiring figured out to make it work, but the 1529 is not capable of being triggered by a remote start, which was the whole point of the 7-day timer for me. Double doh!
Webasto tech support guy steered me over to Patriot Auto @ 517-548-9851, looks like he bought up a lot of the old stock of these timers, and is selling them for about $150US shipped! Get them while you can, these have been discontinued for a few years now!
