Eberspacher wiring. Help my husband is driving us crazy!

[Colinkilner]

I recently bought a D1LC off ebay as a gift (better than socks!) which has been gratefully received! Trouble is most of the wiring connects up together beautifully with purpose made blocks. This has left us with two wires left coming out of the heater, one brown and one green & red, and the only remaining thing to connect up is the pump which has two green wires?? Can anyone tell me if it matters which you connect to which? I have been searching manuals and internet for answers for him and would really rather open a bottle of wine and make dinner! Sally Kilner

 

[ksutton]

Open the bottle of wine and print this attachment off, wiring diagram with wire colours start from page 12 www.eberspacher.com/files/pdfs/air_pdf/airB1LC%2BD1LC_technical.pdf

 

[Colinkilner]

Thanks for that. Have had a look, but it appears that the two green wires from pump (item 2.2) go to other greens? I wonder if just connected up wrong the pump will run backwards whcih can be checked on the bench? Wine is open and in glass!

 

[pvb]

The pump isn't polarity-sensitive. Otherwise, it'd have wires of different colours.

 

[Landale]

As I recall the glass isn't polarity sensitive either /forums/images/graemlins/laugh.gif

 

[Heckler]

doesnt matter which way you connect the pump, it is a DC solenoid type pump and the electronics in the heater provide a pulse which energises a coil which then moves a piston. the coil is not polarity sensitive. by the way be aware that eber in their germanic way use brown for the negative wire!! red is more sensible as the positive.
stu

 

[Heckler]

another tip, when it is in place ready for the first firing, disconnect the pump, get a length of wire, temp connection to the battery and "flash" the terminals of the pump (or other way round) and make it "tick" use a scratching motion, this will suck the fuel from your supply, watch the pipe until the fuel reaches the heater, then start it, if you just switch it on it will fail to start and if you are unlucky and the failed starts reach ten it will lock out! better to prime it and avoid this situation.
stu

 

[Colinkilner]

Thanks for that...very helpful and explains how the unit talks to the pump. Can now stop worrying about whether he's going to blow it (and us!) up.

 

[Heckler]

yes!!!
make sure the exhaust is gas tight and also make sure that the outlet isnt somewhere where the gases can seep into the living quarters, its no big deal but something you need to be aware of, mine exits the transom above the sugar scoop and i was wondering about what would happen when the wind came from astern but in reality the distance is such that any gases would be dispersed before they hit the hatch.
stu

 

[macd]

Does he know how gratefull he should be? And do you have any sisters? /forums/images/graemlins/wink.gif

 

[Colinkilner]

No sisters...just one brother and he's a bit hairy!! /forums/images/graemlins/wink.gif
Many thanks to all...case of wine in the post. Sally