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 > ? Heat & Air on Ford Chassis?

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RLS7201

Beautyful Downtown Gladstone, MO

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Posted: 03/14/19 04:13pm Link  |  Quote  |  Print  |  Notify Moderator

Chum lee wrote:

RLS7201 wrote:

Chum lee wrote:

RLS7201 wrote:

dcmac214 wrote:

Does Ford motor provide enough heat/air for comfort or do you have to run the RV heat/air for comfort?


Ford does NOT provide HVAC in class A motorhomes. All Ford provides is the compressor, condenser & receiver/dryer. The rest of the components are provided by the coach builders.

Richard


In some (not all) cases Ford also provides the dash mounted control panel and some of the related wiring/vacuum system for the chassis HVAC on the F53 Class A.

Chum lee


Can you elaborate on which cases that Ford provides the controls on an F53 chassis. How would Ford controls interface with Evans Tempcon or Denso HVAC systems?
Inquiring minds want to know.

Richard


Hi. I have a 1999 Southwind F53. The HVAC controls (along with the other dash instruments) are supplied by Ford with the F53 stripped chassis package. I've worked on many Ford products over the years as well as working in a Ford (dealership) parts department so I am familiar with what the Ford parts "look" like as well as Fords part numbering system. Evans and Denso may buy their HVAC controls from the same manufacturer (I don't know) as Ford. As Doug has previously mentioned, various RV coach manufacturers throughout the years have used different HVAC systems so they may opt to use different dash controls so each application could vary. Suffice to say, if it looks like it came from a Ford automobile/truck, it probably was supplied by Ford. There are others out there. Delco for one was popular years ago. Sorry I cant be more specific to all applications, but if you look at the dash controls and find the part number, (usually embossed on the part) if it starts with a 4 digit prefix like "E9TZ" or a similar format with 4 digits, the first being a letter, the second being a number, the third being a letter, and the last usually being a "Z," usually its a Ford part. For the example E9TZ, the part number would mean that the part was originally designed for an E meaning 1980's decade, 9 meaning the year 1989, T meaning truck, and Z is usually an undifferentiated place holder. So a Ford typical part number would be the format WXYZ-77777-Z

It's more likely that the coach builders AC supplier builds their system components to interface with Ford (and the coach builder) rather than the other way around since Ford builds the base chassis in the case of the F53. Generally, the manufacturer with the most money makes the rules regarding the components. But not always, . . . . and times change. Remember when computers were all IBM compatible? Nobody gives a cr*p about IBM in the personal computer market anymore.

Chum lee


You 1999 Southwind has Denso HVAC. All electric servo motor control, no vacuum. Ford's vacuum controls would not interface with denso's servo motors.

At 2 minutes & 33 seconds into this video is a Southwind HVAC control, manufacture by Denso. Same as the controls in my 95 Bounder

Richard

* This post was edited 03/14/19 04:26pm by RLS7201 *


95 Bounder 32H F53
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Monkeyman_and_Lady

Severn, Maryland

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Posted: 03/21/19 02:28pm Link  |  Quote  |  Print  |  Notify Moderator

Last year on a trip to Atlanta for Spring Break we ran the dash heat. Was still a bit cold. My unit came equipped with an aux heating system that runs a radiator in the rear of the coach. I turned that on with low speed fan and the RV got very toasty. Had to cycle every now and then to keep from being too warm.


Monkeyman, Lady and little chimp
2018 Newmar Baystar 3414


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