Temperature Adjust on F53 chassis

Dutch_12078 wrote:
By balancing the temperature control setting and fan speed, we've found our F53 heat to be relatively easy to maintain within our comfort level. Turning the temp control/coolant flow rate down for instance, while turning the fan up a notch or two, lowers the output temperature more effectively than just turning the temp control down. A blend door would certainly be more effective, but re-engineering the system is not something I'm about to jump into given the relatively short time we're traveling versus parked and living in the coach.

Some days I travel10-12 hours, so keeping the cockpit temp comfortable makes these long days easier. What I usually end up doing is turning the A/C or heater off when it gets to cold or hot, then back on again later. Shouldn't have to do it that way, but without good temp control, that's what I have to do.

dougrainer wrote:
RV212094

Single-Level Vacuum Motor

I assume this is what you mean and is on that link. Doug

Ok, found it. Didn't look down far enough on the page. Will order new one tomorrow. Thanks!

By balancing the temperature control setting and fan speed, we've found our F53 heat to be relatively easy to maintain within our comfort level. Turning the temp control/coolant flow rate down for instance, while turning the fan up a notch or two, lowers the output temperature more effectively than just turning the temp control down. A blend door would certainly be more effective, but re-engineering the system is not something I'm about to jump into given the relatively short time we're traveling versus parked and living in the coach.

My Fleetwood does not have a blend door. Temperature is adjusted by a control valve in the water line. It did not work very good until I changed it out to an H valve that bypasses the heater hoses rather then tries to shut it off.

RLS7201 wrote:

dougrainer wrote:

RLS7201 wrote:

dougrainer wrote:


That outside door you found is to allow fresh air in to the Evap and heater core. When you go to MAX AC, that door closes and it recirculates air from the cab interior. THERE IS NO BLEND DOOR. As I stated, Gas model Motorhomes do not have the fancier blend door systems Auto's have. I have and still am working on Motorhome Dash AC systems for the past 38 years. Doug

Except for Fleetwood, which used Denso HVAC with a blend air door, NOT a water control valve.

Richard

NOT talking about Fleetwood on this post. Tiffin also uses the Denso system which has Blend doors. Doug

But, but, but, you stated "As I stated, Gas model Motorhomes do not have the fancier blend door systems". Your statement included ALL MHs. So one would assume you was unaware of the Denso system. I can only read it as you wrote it.:(

Also, thanks for the tip on the Chrystal Clear DAP. Love it!


Richard

Are you stating 1995 Fleetwood uses the Denso system? Doug

PS. MORE Gas Motorhomes use a non blend door than the Denso system. The Denso system costs a lot more. Doug

dougrainer wrote:

RLS7201 wrote:

dougrainer wrote:


That outside door you found is to allow fresh air in to the Evap and heater core. When you go to MAX AC, that door closes and it recirculates air from the cab interior. THERE IS NO BLEND DOOR. As I stated, Gas model Motorhomes do not have the fancier blend door systems Auto's have. I have and still am working on Motorhome Dash AC systems for the past 38 years. Doug

Except for Fleetwood, which used Denso HVAC with a blend air door, NOT a water control valve.

Richard

NOT talking about Fleetwood on this post. Tiffin also uses the Denso system which has Blend doors. Doug

But, but, but, you stated "As I stated, Gas model Motorhomes do not have the fancier blend door systems". Your statement included ALL MHs. So one would assume you was unaware of the Denso system. I can only read it as you wrote it.:(

Also, thanks for the tip on the Chrystal Clear DAP. Love it!


Richard

I would go to a NAPA store that still has paper catalogs. Take yours with you and they maybe able to match it.RV212094
Doesn't really look like a variable opening blend door actuator. Looks more like one used in recirculation door.

RV212094

Single-Level Vacuum Motor

I assume this is what you mean and is on that link. Doug

Check on your assembly for any markings for who made it.

dougrainer wrote:

zigzagrv wrote:
Got the vacuum motor out. The rod was rusted off at the motor as well as the housing itself. Both bolts snapped off when I tried to remove the nuts.

Now to find a single port motor??

The Link I gave you has the various vacumm motors. Doug

Thanks dougtrainer for the help.

The vacuum motor I took out is not bi-level as shown in the parts book. Can you direct me to a single-level motor?

Again, thanks for the help