What Roof AC to replace 1995 Duo Therm 620215

[deandec]

Alas, it appears my salon AC has failed after 20 years of service.

What replacement 13,500 btu with heat pump AC unit has been used with success?

I sure would like to use the old wiring from Wall Thermostat to Roof AC.

[SrFox]

I am in the same position. What I have found is the Dometic Penguin II will plug into all the wiring but you will also have to change the thermostat. If like me you have a second ac you either have to replace it as well or change the control panel in the unit as well. I think I will pull the trigger on two new units as I just know the second will fail soon after.

[deandec]

Thanks for the info.

I guess I will do the Penguin low profile with heat pump to replace the features of the old one.

Our roof AC's are single zone items so can do one at a time.

Next chore will be getting all 110 lbs on the roof.

[SrFox]

Okay, I have just done a lot of research (about 6 hours on phone calls yesterday) and have ordered two new Penguin II units to replace mine. They say I can use my old wiring. They said I could even use my old 5 button thermostat but I would have to tell them I wanted to do this so they can install the right control unit in the AC on the roof. Call Dometic Factory Support 800-544-4881 and give them your Model number of the old unit and they will give you the exact replacement number.
Then call Dawn at Dyers with these numbers and she will give you an exact quote.
For our Mobile Suites, this is what it cost me:
New Salon
15K Heat Pump
Mod #DOMETIC 651816CXX1C0 White
SKU 88074
$1100

New Bedroom
AC only 13.5K
SKU #89402
Mod #PENGUIN AC, HIGH CAPACITY,WHITE, CCC2 T-STAT REQ'D
$887.90

New Thermostat
3314082.011 White
SKU 83657
Dometic CCC2 Polar White Comfort Control Center II Thermostat
$97.98

Shipping $125
Total: $2210.88

[deandec]

Great info. You are further along in the process than I am.

I also found some info at this thread.

http://www.irv2.com/forums/f103/repl...-244262-2.html

And this one:

http://www.irv2.com/forums/f115/repl...er-260730.html

[deandec]

I see PPL has the 13.5 BTU unit 651815.CXX1C0 with heat pump for $894 plus $120 shipping.

Staying with the 13.5 unit may still allow me to run two AC on my generator.

Guess I will give PPL a call since that is the cheapest price I have found. Dyers is $140 more expensive

[SrFox]

When I talked to the PPL lady she told me the price did not include the control panel in the unit and I think she told me it was right at $140 extra.
The lady at Dyers went the extra mile for me and got all the details. Best to call Dometic first to get the right numbers. I was fooled by the low price of PPL as well.

[deandec]

Well, I learned from PPL and Dometic that my application can only be done with the 651916.cxx1c0 model which is the only ducted, heat pump unit that can be driven by a dedicated thermostat.

Of course that is the most expensive model.

Dyers does not have it in their catalog.

I am hoping for cool weather in the interim.

[SrFox]

They did not have the one I needed listed either however the lady at Dyers spent the better part of a day getting me the right info and pricing.

[TQ60]

Go with the 15 KBTU unit as last time I looked the ac power requirements were almost same.

When compared to the old unit maybe a little less.

Compare power requirements of new to existing for better results.

[deandec]

Originally Posted by TQ60

Go with the 15 KBTU unit as last time I looked the ac power requirements were almost same.

When compared to the old unit maybe a little less.

Compare power requirements of new to existing for better results.

Yes, the Dometic chart shows that all their new Penguins need a 5.0K generator to run two units. Same as the spec on my 1995 units. So no change in 20 years.

Unless I rewire the rig for a centrally controlled multi zone thermostat, I have to buy the 15,000 btu version. Only one of the heat pump/ducted versions will operate with a single zone thermostat.

[SrFox]

I wonder if you can not just use the two zone thermostat and only hook up one? I know on my two zone, I can shut one zone off and not use it as my Salon ac is currently not working.

[deandec]

Well I could go to the multi zone, but would save me it appears about $150 premium for the high capacity unit and more options for sourcing the new unit plus it cost more for the controls.

Yes, I am complaining for little reason.

I guess single zone AC is on its way out.

[deandec]

A slight twist.

I have zeroed in on the Atwood Air Command unit 15k btu, ducted with heat pump.

The complete package will cost about $850 vs $1350 for the Penguin at PPL.

Not as attractive as the Low Profile Dometic.

But.....Atwood is owned by Dometic.

Decisions ......Decisions.