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Old 07-20-2018, 07:43 AM   #11
ChuckS
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A/C Question (Impact 332)

So they installed this single zone thermostat and wired both control board 12 volts lines to one thermostat.

https://cdn.ltvdns.com/leisurevans.c...Thermostat.pdf

I donít see why you could not upgrade to CCC2 multi zone thermostat and replace that single control unit with multi zone and wire control wires accordingly for each unit.

It would beat option of trying to install another single zone thermostat for other unit and fish the wires

I also wonder if your unit has TWO remote room temperature sensors mounted? One in bedroom and other in living room areas

If not then you have two issues to deal with... and if RV donít have the two separate remote temp sensors this explains why they installed a single zone thermostat.
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Old 07-20-2018, 10:00 AM   #12
Frank G
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First of all Welcome

A couple of thoughts, was this a dealer installed option?

I noticed the second unit gets installed in the garage and from the Keystone Literature showing one AC in the main living area the thermostat is located in the garage. Are there any issues about running a AC in the garage and the possibility of pumping deadly fumes to the living area?

Personally, I think the multi unit thermostat is in order.

Lastly, not all AC units are created equal, some are nosier than others. In our last THTT there was no TV with the AC running. sad

In our present unit we have 2 AC units and operate them as described in the OP's first post.
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Old 07-20-2018, 12:50 PM   #13
chuckster57
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Quote:
Originally Posted by Frank G View Post
In our present unit we have 2 AC units and operate them as described in the OP's first post.

What your saying is if you turn in one AC unit, both operate? You canít turn one off?
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Old 07-20-2018, 04:51 PM   #14
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Switching to the Multi-Zone thermostat CCC II is not just a matter of changing thermostats. The Single Zone has three wires running to it...+12VDC, -12VDC, and the Comm or communication wire which is orange. The CCC II uses a 4 wire setup involving telephone type connectors....probably the RJ11 type connectors...plus the control boxes in the A/C units are different.
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