I solved my air flow problems
Here's the problem. When the kitchen air handler was turned on, the air would skip over the kitchen vents and come out the ends at the living room and bathroom. The kitchen would call for cooling bu...
Forum Discussion
holstein13 wrote:dougrainer wrote:I've been thinking about this a little bit and can't see any situation where you would want one A/C to split air between the living room and the bathroom.
As the other poster stated, you have made your unit a true 3 zone separate system. As he pointed out, you HAVE to have each AC running for your blocked off Zone for that zone to supply cool/heat.
Between the load shedding feature and the thermostats, you can direct a zoned A/C to any area of the coach you would like. If you are limited to one A/C, that means you can direct the air to the part of the coach you are using, i.e, kitchen / living room during the day and bedroom during the night.
Have you actually lived in one of these coaches with the single ductwork? Having a freezing bathroom during the middle of the night and having the kitchen A/C running constantly is not very practical. I realize that you said this is not normal, but you didn't say how effective the "normal" operation is for cooling the zones.
I base my comments on extensive work on Newmar ducting and roof AC/HP for over 20 years. In HOT climates(North Texas), I have never had a complaint on the common duct system Newmar uses(almost all motorhome ducts ARE common and not separate, I have never seen one with separate ducted zones but there may be some out there), other than customers that are NOT on 50 amp service or have the Intellitec EMS and want to use 1 roof AC to cool the entire RV (38 to 45 foot) and complain it will not do that when Newmar did NOT design 1 or 2 AC units to cool the entire RV unless you had the 2 or optional 3rd AC on. The 40 foot and smaller Newmar's will cool the complete RV with 2-15k AC un its. You need the 3rd for units longer than 40 foot. The nice thing about the common duct is, For quiet, you can run the front or middle on COOL/hi fan and then have the bedroom on lo fan and this will pull cold air to the bedroom without the noise of the bedroom compressor. What I am telling you is, your system should NOT need those block offs in the duct. If you are happy with it ,OK, but it is NOT correct. Doug
