WANTED - Webasto fuel burning heater FBH - Page 6

CDTi · 31st March 2008, 19:01

Quote:

Originally Posted by Raistlin

I should really get a circuit diagram of it and paste it into my manual

I always strive to keep good records, but sadly I often fail i.e. "there is no need to keep a note of that - I'll remember it if I need to go at it again"

If I do have to revisit some past work, I usually then have to spend ages trying to figure out how I did it in the first place

.

Keith · 31st March 2008, 20:07

yep pin 4 drives the DPDT relay that switches your ATC panel just nip down to Maplins and buy a timer (probably less than £5) and use the wire from pin 4 to drive it probably plenty of room in the relay box as well.

Raistlin · 31st March 2008, 20:11

Thanks Keith

Does Pin 4 go positive or negative please?

Lat question - Promise

CDTi · 31st March 2008, 21:54

Quote:

Originally Posted by Keith

just nip down to Maplins and buy a timer (probably less than £5) and use the wire from pin 4 to drive it

But won't it have to be a delay timer i.e. switches on after a predetermined time delay? Most timers start the timing cycle after activation and then stop.

I hope I'm making sense :lol:

CDTi · 1st April 2008, 17:52

Quote:

Originally Posted by Keith

Paul the earlier FBH firmware works properly ATC comes on after a few minutes once the water is warm enough

Yep, did a few tests today with my 66232C ECU and pin 4 goes positive after about 4 minutes. Obviously this will vary with the coolant temp i.e. on a cold morning it will take a lot longer to activate.

The IPK temp needle was at about 7 o clock when it switched on.

This means that I don't need the delay timer

Raistlin · 1st April 2008, 18:00

Quote:

Originally Posted by CDTi

Yep, did a few tests today with my 66232C ECU and pin 4 goes positive after about 4 minutes. Obviously this will vary with the coolant temp i.e. on a cold morning it will take a lot longer to activate.

The IPK temp needle was at about 7 o clock when it switched on.

This means that I don't need the delay timer

I think the other route for me might be a Kenlowe thermostat switching the output of terminal 4.

CDTi · 1st April 2008, 18:12

Quote:

Originally Posted by Raistlin

I think the other route for me might be a Kenlowe thermostat switching the output of terminal 4.

Sounds like a better idea than a timer, Paul.

Raistlin · 1st April 2008, 18:18

Quote:

Originally Posted by CDTi

Sounds like a better idea than a timer, Paul.

Crikey - a bit flipping expensive though, just having checked fleabay prices - £35.

Anybody got one they don't want please?

CDTi · 1st April 2008, 18:20

Quote:

Originally Posted by Raistlin

Crikey - a bit flipping expensive though, just having checked fleabay prices - £35.

Anybody got one they don't want please?

Probably best to start a new thread in the "Wanted" section. You might get a bit more exposure.

Raistlin · 1st April 2008, 18:22

Quote:

Originally Posted by CDTi

Probably best to start a new thread in the "Wanted" section. You might get a bit more exposure.

I intend to Eammon - that was just a knee-jerk reaction whilst waiting for my heart to stop fibrillating

31st March 2008, 20:11	#53
Raistlin Banned 75 CDT Connoisseur SE Auto Join Date: Nov 2006 Location: Wolverhampton Posts: 8,450 Thanks: 0 Thanked 3 Times in 3 Posts	Thanks Keith Does Pin 4 go positive or negative please? Lat question - Promise Last edited by Raistlin; 31st March 2008 at 20:14..

31st March 2008, 20:07	#52
Keith This is my second home ZT400 Join Date: Oct 2006 Location: Ellesmere Posts: 5,948 Thanks: 0 Thanked 43 Times in 29 Posts	yep pin 4 drives the DPDT relay that switches your ATC panel just nip down to Maplins and buy a timer (probably less than £5) and use the wire from pin 4 to drive it probably plenty of room in the relay box as well.