Rod Speed wrote:
Abby Normal wrote
Rod Speed wrote
Abby Normal wrote
Rod Speed wrote

Corse it will work fine. No reason why the secondary
system cant have a slightly lower than normal temperature
set so it recovers from the setback in a decent time and
then stops and leaves the primary system to get the temp
back up to normal. Thats going to happen fine since the
temp difference is well within its capabilitys.

If you shut the booster off before the central area
gets up to temp and rely on the primary system
then bringing it up to temperature then, this central
area catches up quick compared to the rest of the house.

Wrong. The primary system which keeps the house at a uniform
temp when setback isnt used keeps doing that fine when you
use anything to get the central area back off setback.

Okay, the setback period ends, the primary system is running
steady trying to bring the whole house back up to temperature.
Maybe has to try and bring the whole house up by 5 degrees.

But a second system only serving in the central area also turns on.

So perhaps in one half hours time, the primary system has brought
the whole house temperature up by a degree and the secondary
system has brought up the central area by another 3 degrees.

The secondary system cycles off,

No it doesnt, it hasnt got the central area up to the normal temp, stupid.

and the primary system runs for another hour
has fianlly recovered the 5 degrees of set back.

You are setting the secondary system lower than the primary system, so
the secondary system cylces off first.

Wrong again, the new central temp is distributed to the other rooms
by the secondary system and the whole system gets back to the
normal temp as fast as the secondary system can get it back.

The new central temp, that is approaching 70F is distributed to the
other rooms by the ductless secondary system. Hey that sure works. 70F
air to a cold room teleported magically ought to just recover great.
Anyone with enough brains to cash a welfare cheque can't be that
stupid, you are just trying to steal the fishing rod from me.


This was done by the primary system supplying two degrees of
reheat and the secondary system providing 3 degrees of reheat.

Wrong, as always.

But now, you need to think about where
that primary system thermostat is.

Nope.

If that primary system thermostat is in the central area,
it is satisified. That means the rest of the house gets
no more heat until the central area cools off.

Wrong, it circulates the normal temp air from the central area
to the other rooms while the central area is recovering from
the setback. It just isnt adding much heat to that circulated air.

Well I guess you could run the fan steady when the primary thermostat
was satisfied, the room temps will slightly rise and this helps cool
down the central area to the point that the primary system comes back
on. But the problem is this is a mickey mouse amount of heat and will
be at a lower rate than what the room loses due to the outdoor ambient.


Then the primary system comes on central area hits 70 and it shuts off
again, repeats over and over until finally, until long after everyone
froze their ass off in the shower, went to work, the outdoor ambinet
rises, the sun starts shining and the house finally recovers.

The central booster is worse than Zeno's paradox or is it Xeno? You got
a dead dog rocket.


The WHOLE HOUSE will come back off the setback at a rate
which is determined by how quickly the secondary system can
provide the heat required to come off the setback.

The secondary system by your own description is set to shut off before
the primary system does. So you have recovered the temperature in the
central area. Not doing much of anything in the rooms tho.

So the rooms have recovered two degrees of
heat (actually probably a slight amount more)

The WHOLE HOUSE comes back off the setback
because the central air is still circulated by the
primary system, just like it is when no setback is used.

and the primary system is off.

I'll tell you what, if you want a piping hot wood stove or the
fireplace in the central area and you crank up the heat in that central
area, then by running the fan of a 'primary system' you are going to
get some heat into the rooms. The central area is going to be quite
warm for this to happen.

So maybe you have some scrap wood or dried up kangaroo dung to burn and
get some free heat and an elevated temp in the central area hey, you
have proven you can circulate air and warm up rooms. You want to get
the same elevated temperature using a ductless heat pump in a central
area and you are using more power than a heat strip.

Really if you have enough brains to fill out a form to apply for
welfare, how can you even think this.

Man oh man, I thought I was trolling the troll. Now the fish is
fighting back. I think I am just going to have to reel it in and club
it now.

No it isnt.

So you really need to think, of a better way to control the primary
system it is a doomed system to have the stat in the central area.

That wont give a uniform temp in the house with no setback used, stupid.

You also need to think about how to get extra heat above what the primary
system can normally supply to the rooms to assist them in recovery.

Nope, that comes from the secondary system, circulated by the primary system.

Doesnt matter if thats a ductless split system,
solar, a wood stove, or even a furnace etc.

Hey could be an electric heater in that
room, will not work as well as the strips.

Well enough.

Solar will help after your scheme fails, it
would warm up the east rooms anyways.

The primary system has to be able to handle the
inevitable that the rooms on the sunny side will get
solar and the rooms on the other side wont, stupid.

I will translate it for you then. Your set back scheme does not work so
they freeze their asses of in the morning. However after the sun
finally rises the east side of the house may recover.

Not much heat from that booster trickling
into the rooms in that time frame.

Complete pig ignorant drivel.

When the primary system is running and the central
area has recovered, the average return air temperature
to the primary system will elevate slightly.

Lot more than slightly because its the central area, stupid.

Sure can be a lot more if you crank up the secondary system to get it
up to 80 in the central area. You are trying too hard to get that
fishing rod back.

This results in a slightly elevated supply temperature
to the cool rooms and marginally helps them recover.

The primary system keeps the temperature uniform,
just like it does with no setback used, stupid.

Try a code system

assign numeric values to strings such as "primary", "uniform", "pig"
etc, then use a random number generator. Write a little program to
convert the random numbers back to strings and you have more sensible
sounding responses.

If you can't access a random number generator maybe do like the old
'numbers' gambling system. A good source of numbers to use and later
convert to strings could be the cheque numbers on your welfare cheques.

You spell with the Queen's English down there right?

Reams of your pathetic excuse for a troll flushed where it belongs.

No wonder the best you have ever been able to
manage is drunken unemployable HVAC ape.