Welcome to Motorhomefacts, we are a thriving motorhome community (Largest in Europe). Why Not JOIN NOW and get instant access to more of the website. It costs nothing to join and only takes a few minutes. We have 200,000 different people visiting our site monthly and this amount of motorhomers in one place guarantees a fast response to any questions you may have. We also have unique facilities not found elsewhere such as our Online Logbook, stopover tracker, Motorhome directory with Ebay type feedback and the largest repository of motorhome campsites reviews found anywhere
Hi Guy's
Just an enquirey that those with a Trauma Combi 4E/6E can answer, I'm struggling a bit.
We have just bought a sqeaky new A/T Dakota with one of these Trauma' s fitted. It has two control dials above the door.
Firstly am I correct in thinking that the r/h side dial with 1-5 in for the room temp?.
Secondly that the combi can only be run (water heating and room heating) can only be run on gas AND electricity not just electricity alone if this is the case, how much gas does this use...a better way of asking is this question is which is the main fuel gas or electricity.
If we are using the van in mid winter, so want maximum heat and hot water, what settings do I need to use.
I can't get my head around why I need to use both fuels not just EHU.
If on EHU then why should I need to use my gas as well?
I think you've got the same as us. Firstly, yes, the numbered dial is the 'stat. The outer ring controls whether you want heating, hot water, hotter water, or heating and hot water.
The dial underneath allows you to select gas only, electric (low power) only, electric (high power) only, or gas and electric.
Didn't you get a Truma manual with the van? It comes with a single sheet idiots' guide (I needed it).
quote: "If we are using the van in mid winter, so want maximum heat and hot water, what settings do I need to use.
I can't get my head around why I need to use both fuels not just EHU.
If on EHU then why should I need to use my gas as well? "
Firstly you do not need gas and electric at the same time but you can if you want a quick warm up. Gas will warm the boiler up quicker than electric only.
If you want maximum heat and hot water then what I do on my boiler is set the thermostat setting to maximum and select whatever power source I want e.g. electric only / gas only or electric+ gas. I then set the control for Heating only. This starts to heat the living space up without waiting for the water to get up to temperature first and even on electric only it only takes 30 minutes or so to raise the temperature by 15 degrees or so. The water gets hot in any event.
Last edited by rayc on Mon Nov 28, 2011 8:58 pm; edited 1 time in total
Hi Paul
Do you have a fire in the van or is it just warm air heating?
Whichever it is, both units can be run on gas or electric or both. The output on electric is about 1kw or 1.8 kw. The output on gas is about 3.2kw so with both on it is about 6kw of heat output.
tThe 2 knobs over the door. One of them determines the power supply, gas or electric, the second one is different if it is warm air or if you have a fire. Assuming it is a fire then on EHU leave the left knob a 3pm position and turn the right one one click. That heats the water to 40 or 2 clicks to 60. The the rotary dial in the centre is the thermostat for the heating via the fire.
If it has warm/blown air heating there is an excellent post here <MHF Truma Control instructions
Hope that helps.
______________________________________________________________ Be seeing you! No. 6
Paul,
Our Combi will heat the water and/or the motorhome on gas or mains electricity. The water heating works efficiently whichever fuel is used (although it's faster with gas) but the space heating is much better on gas then electricity.
I have the instruction booklet but it doesn't really explain the dual fuel setting - but my impression is that it heats the water using mains electricity and the space heating by gas.
Bill
Thanks for your replies
Gerald, this looks really bad cus I can't understand the idiots guide LOL.
What I cant get to grips with, is why when on EHU, do you have to use gas as well? It doesnt make sense, So if you run out of gas, you cant have your heating on, sorry for my stupidity! (It's my age)
Hi DJP, no there's no fire (although we do have a stand alone fan heater, which in Leeds last weekend was a godsend, but switched it off during the night and awoke cold and fed up. I think it was because I had it on , what I thought was electricity only, this seems to be the 'summer' setting ....water heater only. I don't think that I can run it on electricity only DJP.
Thanks rayc, Ive got the manuals, Its just that I cant interpret them or belive what I'm reading.
Thanks for your replies
What I cant get to grips with, is why when on EHU, do you have to use gas as well?
Paul
No you select which ever fuel source you want i.e. electric only, gas only or gas + electric. The only reason to select gas + electric is for a fast warm up. Gas will heat the boiler up quicker than electric and gas + electric will heat it even quicker. If you decide to use gas + electric to give fast warm up you can switch to electric only when it is warmed up
The water boiler and the space heating are dual power source so will work on electric, gas or both.
Note that you cannot heat water, i.e.the boiler, by gas and space heating by electric or vice versa. The power source you select will power both the heater and boiler.
In my experience the Combi 6 is superior to the Combi 4 as far as EHU only heating at low temperature as you would expect. If the MH manufacturer has been stingy and put a Combi 4 in a large MH then it could struggle at low temps with electric only.
Last edited by rayc on Mon Nov 28, 2011 9:25 pm; edited 1 time in total
Note that you cannot heat water, the boiler by gas and space heating by electric or vice versa. The power source you select will power both the heater and boiler.
But you can have the heating on EHU without water in the tank.
______________________________________________________________ Be seeing you! No. 6
Note that you cannot heat water, the boiler by gas and space heating by electric or vice versa. The power source you select will power both the heater and boiler.
But you can have the heating on EHU without water in the tank.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum You cannot download files in this forum
All times are GMT + 1 Hour Page 1 of 2Goto page 1, 2Next
UK
Waving in memory of Peter and Fiona
Fighting with Mavis´s MESO WARRIORS 
