| Author |
Message |
MC - Iv (24.83.235.106)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, March 11, 2002 - 4:07 am: | |
I'm sure this has been asked before but what do you do with the original bus heat? We have an MC9 in the planning stage and there is a heater core in the front which supplies driver's heat and defrost. What about the main heater core? I would like to remove the channels that run along the floor on either side but I have to supply heat to my co-pilot.(Or else!)
Iv. |
Steven Gibbs (12.148.43.8)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, March 11, 2002 - 7:17 am: | |
Iv,
First, if you haven't already, get yourself a manual since the system is very well docuemnted.
You can remove the main heater core, evaporator, and motor/blowers. These have resale value if they are in good shape and you can find the right buyer (typically a bus or charter outfit still running MC-9's. If you have an R12 system, the refrigerant is worth alot of money so don't just cut a line and dump it.
Once the main heater core is removed, sweat some caps on the supply and return (at the core). This will leave your front heater core intact and operational. The pointer valve handle at your left next to the driver's seat controls the flow of heat and the fan switch controls the airflow.
Everything else can be removed.
Good Luck and have fun,
Steve Gibbs |
Cory Danes RTS N/E (198.29.191.147)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, March 11, 2002 - 11:35 am: | |
I chose to keep the heating system. It is a lot more efficient than any alternate heat source and it can keep up with any air leaks when you are moving down the highway. I did remove the Air Con as it was not working when I bought the bus.
Just a thought / cd |
FAST FRED (209.26.87.93)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, March 11, 2002 - 3:13 pm: | |
Simplest is to keep the dash heat / defroster.
It will do loads of front heating.
A box heater will do the rear , if you need to travel in very cold weather.
FAST FRED |
J.Meyers (208.169.40.38)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, March 11, 2002 - 11:10 pm: | |
Hello everybody,
This is a little off the thread but what about the dash units that have the ac, heater, and defroster? How well do they work to keep the driver and co-driver cool? I have one from a 4905 that I would like to install in our 4107. I have heard of some doing this and installing a GM automotive type A-6 compressor. But what could you do about a condenser coil? Could you still use the one from the bus air? If this would work looks like the best of both worlds, heat and cool, in the drivers area while going down the road.
Thanks in advance
Jeff |
MC - Iv (24.83.235.106)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, March 12, 2002 - 2:44 am: | |
I agree with Fred to keep it as simple as possible but what are the down sides to keeping the coach heat? As Cory says it is a very efficient system and what alternate source can give enough heat to the entire coach? |
FAST FRED (209.26.87.29)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, March 12, 2002 - 4:58 am: | |
The Down side to some is keeping those long distribution ducts that run on both sides of the coach.
I kept mine , on one side it feeds heat with a propane furnace , the other provides a duct for the air cond return.
Advantage of dumping system is OLD system was huge to de humidify coach , Both Air cond & heat were on at same time.
You also get the space from the old HUGE radiator , blowers , air cond compressor , evaporator and condenser , if youtoss it all.
How you will provide the HVAC should decide what you toss & what you save.
FAST FRED |
Tom Caffrey (Pvcces) (12.146.32.247)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, March 31, 2002 - 11:58 pm: | |
We take fall, winter and spring trips in our coach, which we store in WA. We have been in below freezing weather plenty of times without enough heat.
This last trip, I got to digging around in what was left of our coach heating system. I couldn't see how to get the evaporator out without a lot of work, but one of the two big heating blowers was still installed and working.
We could get very little heat out of it. After removing a bunch of insulation blocking some of the ducts, and the existing blower, I found that the other blower had simply been taken out and the hole left behind.
I plugged that hole with a 7" tapered plastic bucket, reinstalled the blower that I had removed and now we've got all the heat we want when underway.
By the way, our ducts are only about five feet long on each side, and there are six registers installed for changing the airflow when we wish.
No furnace we could install would even come close to producing as much heat. Next, I'll work on a thermostat control for the blower, so we can just set it and forget it.
We also still have the driver heater and defroster and I don't plan on doing anything to it besides using it as needed.
Tom Caffrey PD4106-2576 |
RJ Long (Rjlong) (24.127.8.58)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, April 01, 2002 - 12:08 am: | |
Tom -
You might consider installing an HVAC dash unit out of a 4905.
That way you'd also have A/C out of the defroster vents goin' down the road. . .
RJ
PD4106-2784
Fresno CA |
Tom Caffrey (Pvcces) (12.146.33.16)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, April 02, 2002 - 12:52 am: | |
That's a thought, RJ. I hadn't considered it because I haven't spent enough time in hot weather yet to really need it and I supposed it would be difficult to set it up.
What is needed to convert from our heater to the unit you are talking about?
PS Would you look up our coach number and let me know what you find? Thanks.
Tom Caffrey PD4106-2576 |