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  #1   Report Post  
Rick
 
Posts: n/a
Default Condensate pump wiring

I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would like
to use the condensate pump's cutoff switch to shut down the A/C and the
humdifier water supply, but not the furnace, to avoid a freeze condition.
How can I wire the system to work? The alt.hvac guys were less than helpful.
Thanks.
--
Rick


  #2   Report Post  
Alan
 
Posts: n/a
Default Condensate pump wiring

On Sun, 19 Oct 2003 14:03:17 -0400, "Rick"
wrote:

I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would like
to use the condensate pump's cutoff switch to shut down the A/C and the
humdifier water supply, but not the furnace, to avoid a freeze condition.
How can I wire the system to work? The alt.hvac guys were less than helpful.
Thanks.


Maybe they weren't helpful because they didn't understand what you
want to do. I don't understand.

  #4   Report Post  
john williamson
 
Posts: n/a
Default Condensate pump wiring


Condensate pump wiring

Group: alt.home.repair Date: Sun, Oct 19, 2003, 2:03pm From:
(Rick)
I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would
like to use the condensate pump's cutoff switch to shut down the A/C and
the humidifier water supply, but not the furnace, to avoid a freeze
condition. How can I wire the system to work? The alt.hvac guys were
less than helpful. Thanks.
--
Rick
++++++++++++++++++

John wrote:

No problem Rick, but you will need to add a relay or two. if you are not
comfortable doing this I would advise getting help. Make sure the
additional relays are installed on a small chassis or enclosure so as
not to likely short any wires or connections. I am just telling you how
it can be done.

I can not remember if the 760A water solenoid is 120vac or 24vac. If it
is 24vac you can use one SPDT 24vac relay, here are the connections:

+ (hot) side of the 24vac transformer that will be going to RH and RC
of the thermostat will go to one side of the pump safety switch.
+ The other side of the safety switch will go to the coil of the 24vac
coil relay.
+ The other side of the relay coil will go to the common of the 24 vac
transformer.
+ The existing wire at the thermostat terminal (Y) will need to go to
the common or switching contact of the relay. A wire from the (NO)
contact will go where the previous wire went from (Y) to the
compressor. Confusing I know but you are just putting the wire at (Y)
through the contacts and then to the compressor.
+ Put one side of the 760A solenoid through the other (NO) contacts of
the relay.

* If the 760A Solenoid is 120vac, use two 24vac coil relays and
parallel the two coils. Use the second relay contacts (common) and (NO)
to break the solenoid. I don't like to mix low and high voltage on one
relay, also label second relay as having 120vac on contacts.

John Wiliamson

  #5   Report Post  
CBHvac
 
Posts: n/a
Default Condensate pump wiring

Rick, tell em the whole story...

Your local Rheem tech is a moron.


"Rick" wrote in message
...
I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would

like
to use the condensate pump's cutoff switch to shut down the A/C and the
humdifier water supply, but not the furnace, to avoid a freeze condition.
How can I wire the system to work? The alt.hvac guys were less than

helpful.
Thanks.
--
Rick






  #6   Report Post  
Rick
 
Posts: n/a
Default Condensate pump wiring

Yo, CBHvac, you're out of your hostile environment here. Slink back to your
alt. hvac ******** where you and your buddies all seem to enjoy flaming the
"homemoaner's" and your colleague's "professionally trained" butts with
insults instead of offering your valuable opinion.
At least this group tries to be helpful, unlike what my thread experienced
there. Who do you suggest I call that would be willing to visit and clean up
this oversight... the Trane guy? How about the Maytag repairman? He could
probably figure it out.
--
Rick

"CBHvac" wrote in message
...
Rick, tell em the whole story...

Your local Rheem tech is a moron.


"Rick" wrote in message
...
I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would

like
to use the condensate pump's cutoff switch to shut down the A/C and the
humdifier water supply, but not the furnace, to avoid a freeze

condition.
How can I wire the system to work? The alt.hvac guys were less than

helpful.
Thanks.
--
Rick






  #7   Report Post  
CBHvac
 
Posts: n/a
Default Condensate pump wiring


"HvacTech2" wrote in message
...


Hi john, hope you are having a nice day

On 19-Oct-03 At About 08:33:36, john williamson wrote to All
Subject: Condensate pump wiring

jw 0006b33 From: (john williamson)

jw Condensate pump wiring Group: alt.home.repair Date: Sun, Oct 19,
jw 2003, 2:03pm From:
(Rick) I have a newer Rheem
jw RGRA gas furnace with a Rheem A/C controlled by a Honeywell T8600D
jw thermostat, and an Aprilaire 760A humidifier. I would like to use
jw the condensate pump's cutoff switch to shut down the A/C and the
jw humidifier water supply, but not the furnace, to avoid a freeze
jw condition. How can I wire the system to work? The alt.hvac guys were
jw less than helpful. Thanks. --Rick ++++++++++++++++++

jw John wrote:

jw No problem Rick, but you will need to add a relay or two.

Actually he can do it without adding any relays. lets see if you can

figure
it out John. can you tell me how he can do this without adding any relays?



We all over in hvac had a nice e-mail discussion about that...its so
hard...ummm....ahhh...wait...I am in the learning stages according to John,
the ever powerful 40 year retired MechEng....hummmm....I am sure he can make
it work on paper with about 30 more parts than needed, but any tech worth
his salt can do it with the wires that are there existing.....kinda like
most do now....its such haRd work.


-= HvacTech2 =-


.. "A friend of mine is in jail for counterfeiting pennies..."- s.w.

___ TagDude 0.92á+[DM]
++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++
spam protection measure, Please remove the 33 to send e-mail



  #8   Report Post  
CBHvac
 
Posts: n/a
Default Condensate pump wiring

Not sure about the freeze condition, but we all didnt tell him that you dont
need 2 relays, but the freeze thing gets me...but...if he would simply wire
that R line up, he would be hokey fine..

"Alan" wrote in message
...
On Sun, 19 Oct 2003 14:03:17 -0400, "Rick"
wrote:

I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would

like
to use the condensate pump's cutoff switch to shut down the A/C and the
humdifier water supply, but not the furnace, to avoid a freeze condition.
How can I wire the system to work? The alt.hvac guys were less than

helpful.
Thanks.


Maybe they weren't helpful because they didn't understand what you
want to do. I don't understand.



  #9   Report Post  
Rick
 
Posts: n/a
Default Condensate pump wiring

I was thinking of the more complicated relay route, but how about breaking
the tied common side of the humidifier and the outside A/C unit with the
cutoff switch? Would that work?
The only helpful comment from the "professionals" at alt.hvac, one said that
the furnace condensate is acidic and per some codes, the pump should always
shut the furnace down. Since I am away usually only a few days, maybe the
risk of frozen pipes is minimal.
--
Rick

"john williamson" wrote in message
...

Condensate pump wiring

Group: alt.home.repair Date: Sun, Oct 19, 2003, 2:03pm From:
(Rick)
I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would
like to use the condensate pump's cutoff switch to shut down the A/C and
the humidifier water supply, but not the furnace, to avoid a freeze
condition. How can I wire the system to work? The alt.hvac guys were
less than helpful. Thanks.
--
Rick
++++++++++++++++++

John wrote:

No problem Rick, but you will need to add a relay or two. if you are not
comfortable doing this I would advise getting help. Make sure the
additional relays are installed on a small chassis or enclosure so as
not to likely short any wires or connections. I am just telling you how
it can be done.

I can not remember if the 760A water solenoid is 120vac or 24vac. If it
is 24vac you can use one SPDT 24vac relay, here are the connections:

+ (hot) side of the 24vac transformer that will be going to RH and RC
of the thermostat will go to one side of the pump safety switch.
+ The other side of the safety switch will go to the coil of the 24vac
coil relay.
+ The other side of the relay coil will go to the common of the 24 vac
transformer.
+ The existing wire at the thermostat terminal (Y) will need to go to
the common or switching contact of the relay. A wire from the (NO)
contact will go where the previous wire went from (Y) to the
compressor. Confusing I know but you are just putting the wire at (Y)
through the contacts and then to the compressor.
+ Put one side of the 760A solenoid through the other (NO) contacts of
the relay.

* If the 760A Solenoid is 120vac, use two 24vac coil relays and
parallel the two coils. Use the second relay contacts (common) and (NO)
to break the solenoid. I don't like to mix low and high voltage on one
relay, also label second relay as having 120vac on contacts.

John Wiliamson



  #10   Report Post  
Rick
 
Posts: n/a
Default Condensate pump wiring

To define my "freeze condition," meaning being away for a week during
possible 0 deg weather, and the heater is shut down because of a $50
condensate pump failure. Since it is on a concrete basement floor, I'd
rather that the furnace keep going, but again, I dont know how much
condensate it generates. The Aprilaire, I know uses lots of water.

What is the opinion out there? Is it better to shut the furnace down to
avoid acidic condensate from a high efficiency gas furnace, or put up with
repairing burst pipes?
By breaking the R line, I can shut down the furnace, humidifier, and AC
unit, but not just the humidifier and AC unit.
--
Rick

"CBHvac" wrote in message
...
Not sure about the freeze condition, but we all didnt tell him that you

dont
need 2 relays, but the freeze thing gets me...but...if he would simply

wire
that R line up, he would be hokey fine..

"Alan" wrote in message
...
On Sun, 19 Oct 2003 14:03:17 -0400, "Rick"
wrote:

I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would

like
to use the condensate pump's cutoff switch to shut down the A/C and the
humdifier water supply, but not the furnace, to avoid a freeze

condition.
How can I wire the system to work? The alt.hvac guys were less than

helpful.
Thanks.


Maybe they weren't helpful because they didn't understand what you
want to do. I don't understand.







  #12   Report Post  
CBHvac
 
Posts: n/a
Default Condensate pump wiring


"Rick" wrote in message
...
To define my "freeze condition," meaning being away for a week during
possible 0 deg weather, and the heater is shut down because of a $50
condensate pump failure. Since it is on a concrete basement floor, I'd
rather that the furnace keep going, but again, I dont know how much
condensate it generates. The Aprilaire, I know uses lots of water.


Condensing units CAN generate alot more water than you think...


What is the opinion out there? Is it better to shut the furnace down to
avoid acidic condensate from a high efficiency gas furnace, or put up with
repairing burst pipes?


Profitts advice about dual pumps should be seriously considered.

By breaking the R line, I can shut down the furnace, humidifier, and AC
unit, but not just the humidifier and AC unit.


And if the pump fails, you WANT the furnace to shut down, unless you dont
mind the few possible gallons of water that the furnace could produce in a
week..
Altho, its better than a few thousand gallons of broken pipes.

BTW, relays fail about as often as the pump...so its a coin toss..

--
Rick

"CBHvac" wrote in message
...
Not sure about the freeze condition, but we all didnt tell him that you

dont
need 2 relays, but the freeze thing gets me...but...if he would simply

wire
that R line up, he would be hokey fine..

"Alan" wrote in message
...
On Sun, 19 Oct 2003 14:03:17 -0400, "Rick"
wrote:

I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by

a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I

would
like
to use the condensate pump's cutoff switch to shut down the A/C and

the
humdifier water supply, but not the furnace, to avoid a freeze

condition.
How can I wire the system to work? The alt.hvac guys were less than

helpful.
Thanks.

Maybe they weren't helpful because they didn't understand what you
want to do. I don't understand.







  #15   Report Post  
john williamson
 
Posts: n/a
Default Condensate pump wiring


Condensate pump wiring

Group: alt.home.repair Date: Mon, Oct 20, 2003, 12:06am From:
(Rick)
To define my "freeze condition," meaning being away for a week during
possible 0 deg weather, and the heater is shut down because of a $50
condensate pump failure. Since it is on a concrete basement floor, I'd
rather that the furnace keep going, but again, I don't know how much
condensate it generates. The Aprilaire, I know uses lots of water.
What is the opinion out there? Is it better to shut the furnace down to
avoid acidic condensate from a high efficiency gas furnace, or put up
with repairing burst pipes?
By breaking the R line, I can shut down the furnace, humidifier, and AC
unit, but not just the humidifier and AC unit.
--
Rick
"CBHvac" wrote in message
...
Not sure about the freeze condition, but we all didn't tell him that you
don't need 2 relays, but the freeze thing gets me...but...if he would
simply wire that R line up, he would be hokey fine..

++++++++++++++=

John wrote:

I have seen pipes freeze in conditions you described, it is not pretty.
You can destroy personal belongings, ceilings can fall down, or have to
be torn down, walls and flooring replaced. Varying degrees of damage
can occur. The worst one I have seen was a boiler system that froze,
they were not able to occupy the house for months.

You could put the pump in a plastic pan, the larger, the longer before
it flowed on the concrete floor. Personally, I would worry less about
a basement concrete floor than the rest of the house from what I have
seen on the subject.

your call
John Williamson



  #16   Report Post  
mark Ransley
 
Posts: n/a
Default Condensate pump wiring

Dont you have a floor drain or sump pump in your basenent, so when
something springs a leak , and IT will , you will end up with a
swimming pool , ruining everything. That must be addressed first.
You are worried about a measly 50 gallons on the floor , when shuting
down the furnace , bursting a pipe, could dump 50000 gallons in a week
and cost you tens of thousands.. Gee Ask your ins co, Ill bet they
dump you for your stupid ideas. Put in a house Sump . Put in 2
condensate pumps, Leaving when its zero out you need your furnace to
run, not plan a shutoff, I would not wire a shutoff.

  #17   Report Post  
mark Ransley
 
Posts: n/a
Default Condensate pump wiring

I misread your post thinking you wanted the furnace shut off

  #19   Report Post  
MLD
 
Posts: n/a
Default Condensate pump wiring

Snip
"Since I am away usually only a few days, maybe the risk of frozen pipes is
minimal."
Over a few days I imagine the amount of water generated would not be
excessive so why on earth would you ever want to take such a risk? I decided
not to have my pump shut off in the event of a condensate system failure.
I'll be away for as long as a month in the middle of winter and would,
obviously, rather have water on the floor vs having to face frozen/busted
pipes when I get home. I am currently going through the aftermath of a water
damage problem that has so far resulted in approx $35,000 in
rebuilding.remodeling costs. Happened while I was away, came home to
running water from an over-flowing toilet and it's no fun.
MLD

"Rick" wrote in message
...
Since I am away usually only a few days, maybe the
risk of frozen pipes is minimal.
--
Rick

"john williamson" wrote in message
...

Condensate pump wiring

Group: alt.home.repair Date: Sun, Oct 19, 2003, 2:03pm From:
(Rick)
I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would
like to use the condensate pump's cutoff switch to shut down the A/C and
the humidifier water supply, but not the furnace, to avoid a freeze
condition. How can I wire the system to work? The alt.hvac guys were
less than helpful. Thanks.
--
Rick
++++++++++++++++++

John wrote:

No problem Rick, but you will need to add a relay or two. if you are not
comfortable doing this I would advise getting help. Make sure the
additional relays are installed on a small chassis or enclosure so as
not to likely short any wires or connections. I am just telling you how
it can be done.

I can not remember if the 760A water solenoid is 120vac or 24vac. If it
is 24vac you can use one SPDT 24vac relay, here are the connections:

+ (hot) side of the 24vac transformer that will be going to RH and RC
of the thermostat will go to one side of the pump safety switch.
+ The other side of the safety switch will go to the coil of the 24vac
coil relay.
+ The other side of the relay coil will go to the common of the 24 vac
transformer.
+ The existing wire at the thermostat terminal (Y) will need to go to
the common or switching contact of the relay. A wire from the (NO)
contact will go where the previous wire went from (Y) to the
compressor. Confusing I know but you are just putting the wire at (Y)
through the contacts and then to the compressor.
+ Put one side of the 760A solenoid through the other (NO) contacts of
the relay.

* If the 760A Solenoid is 120vac, use two 24vac coil relays and
parallel the two coils. Use the second relay contacts (common) and (NO)
to break the solenoid. I don't like to mix low and high voltage on one
relay, also label second relay as having 120vac on contacts.

John Wiliamson





  #21   Report Post  
Stormin Mormon
 
Posts: n/a
Default Condensate pump wiring

Well, from what I read of this snarl, it sounds like you don't want the
humidifier draining water into the condensate pump if the funace is dead,
and the house is cold.

On the humidifiers I've wired, the water valve is controlled in part by the
blower fan of the furnace. So, if the furnace isn't running, the humidifier
won't get any water. In short, it's a non issue. If the furnace isn't warm,
it won't be blowing. If it's not blowing, the water won't be flowing.

You can switch the AC, if you want. That's easy enough. But I wouldn't
bother to leave the central AC turned on if I wasn't home. Another non
issue.

Have I been a bit reassuring? Hope so!

--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.org
..
..

"Rick" wrote in message
...
I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would like
to use the condensate pump's cutoff switch to shut down the A/C and the
humdifier water supply, but not the furnace, to avoid a freeze condition.
How can I wire the system to work? The alt.hvac guys were less than helpful.
Thanks.
--
Rick



  #22   Report Post  
Stormin Mormon
 
Posts: n/a
Default Condensate pump wiring

I've wondered in my quiet moments how CBH manages to stay in business? I
mean, in the couple years I was on alt.hvac he was consistently rude. Does
anyone else wonder?

--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.org
..
..

"Rick" wrote in message
news Yo, CBHvac, you're out of your hostile environment here. Slink back to your
alt. hvac ******** where you and your buddies all seem to enjoy flaming the
"homemoaner's" and your colleague's "professionally trained" butts with
insults instead of offering your valuable opinion.
At least this group tries to be helpful, unlike what my thread experienced
there. Who do you suggest I call that would be willing to visit and clean up
this oversight... the Trane guy? How about the Maytag repairman? He could
probably figure it out.
--
Rick

"CBHvac" wrote in message
...
Rick, tell em the whole story...

Your local Rheem tech is a moron.


"Rick" wrote in message
...
I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would

like
to use the condensate pump's cutoff switch to shut down the A/C and the
humdifier water supply, but not the furnace, to avoid a freeze

condition.
How can I wire the system to work? The alt.hvac guys were less than

helpful.
Thanks.
--
Rick







  #23   Report Post  
john williamson
 
Posts: n/a
Default Condensate pump wiring


Condensate pump wiring

Group: alt.home.repair Date: Sun, Oct 20, 2003, 4:23pm From:
(HvacTech2)
Hi john, hope you are having a nice day
On 19-Oct-03 At About 21:15:50, john williamson wrote to All Subject:
Condensate pump wiring
=A0=A0jw From:
(john williamson)
=A0=A0jw Condensate pump wiring Group: alt.home.repair Date: Sun,
Oct 20, jw 2003, 5:23am From:
(HvacTech2) Hi
john, jw hope you are having a nice day On 19-Oct-03 At About 18:18:47,
jw john williamson wrote to All Subject: Condensate pump wiring
=3DA0=3DA0jw 0006b3d From:
(john williamson) I gave h=
im
the =3DA0=3DA0jw answer to the question he asked. Now you tell me how to=

do it the w =3DA0=3DA0jw he asked the question
=A0=A0with out j any relays. =3DA0 On topic, be specific. Tell me.
=3DA0=3DA0jw John Williamson
=A0=A0jw Are you telling me you don't know how to do it? =3DA0=3DA0-=3D3D=

HvacTech2 =3D3D-
=A0=A0jw=A0++++++++++++++++++++
=A0=A0jw John wrote:
=A0=A0jw No I don't know how I would do it without any relays, tell me.
Just jw remember he asked that it not affect the heating capabilities
if the jw condensate pump failed.
=A0=A0jw almost done John Williamson

+++++++++++++++++++

Hcac Tech2 wrote:

Well, there are 2 different ways you can do it. first you could just
break the commons to the humidifier and a/c
++++++++++++
John wrote

To do the above, the Aprilaire would have to be using the same
transformer as the furnace/ac and have to be 24vac of course. This I do
not know but If that is true, you could do it that way. I would not
prefer to do it this way but granted you could and be acceptable.

+++++++++++++++++++
Hvactech wrote:

or you could put the switch between RC and R
or RH whichever is needed and feed the humidifier from RC.
=A0=A0-=3D HvacTech2 =3D-
++++++++++++++++++++++

John wrote:
I would not even consider this due to the transits and current draw of
the solenoid. It could damage the thermostat or the cooling anticipator
circuit. It might work one time or a hundred times, depending on the
thermostat circuit. I would put this approach in the "jerry rig"
category. It would be very confusing for the service people down the
road also.

Not bad though HvacTech2, not bad

John Williamson

  #24   Report Post  
Rick
 
Posts: n/a
Default Condensate pump wiring

So, if I twist the 24v commons from the humidifier and the outside unit
together, and run them thru the switch to the C terminal, it would work? If
the loads are truly isolated and not bonded to ground somewhere in the
humidifer or condenser, I can see no reason why it would not. Thanks.
I dont have an RC or RH terminal.
--
Rick

"HvacTech2" wrote in message
...


snip....

Well, there are 2 different ways you can do it. first you could just break
the commons to the humidifier and a/c or you could put the switch between

RC
and R or RH whichever is needed and feed the humidifier from RC.


-= HvacTech2 =-


.. "After they make styrofoam, what do they ship it in?" - s.w.

___ TagDude 0.92á+[DM]
++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++
spam protection measure, Please remove the 33 to send e-mail



  #25   Report Post  
Rick
 
Posts: n/a
Default Condensate pump wiring

I dont have a floor drain or sump pump. The sewer pipe exits 3 ft off the
floor.
The house is 100 yrs old, in fact, a part of the floor where the coal bin
was is dirt, the rubble walls are river rock. The rest of the floor is so
uneven, I would have a hard time finding the lowest point to install a sump
pump.
No need to resort to calling people foul names, mark.
--
Rick

"mark Ransley" wrote in message
...
Dont you have a floor drain or sump pump in your basenent, so when
something springs a leak , and IT will , you will end up with a
swimming pool , ruining everything. That must be addressed first.
You are worried about a measly 50 gallons on the floor , when shuting
down the furnace , bursting a pipe, could dump 50000 gallons in a week
and cost you tens of thousands.. Gee Ask your ins co, Ill bet they
dump you for your stupid ideas. Put in a house Sump . Put in 2
condensate pumps, Leaving when its zero out you need your furnace to
run, not plan a shutoff, I would not wire a shutoff.





  #26   Report Post  
CBHvac
 
Posts: n/a
Default Condensate pump wiring

Correct.

"Rick" wrote in message
...
So, if I twist the 24v commons from the humidifier and the outside unit
together, and run them thru the switch to the C terminal, it would work?

If
the loads are truly isolated and not bonded to ground somewhere in the
humidifer or condenser, I can see no reason why it would not. Thanks.
I dont have an RC or RH terminal.
--
Rick

"HvacTech2" wrote in message
...


snip....

Well, there are 2 different ways you can do it. first you could just

break
the commons to the humidifier and a/c or you could put the switch

between
RC
and R or RH whichever is needed and feed the humidifier from RC.


-= HvacTech2 =-


.. "After they make styrofoam, what do they ship it in?" - s.w.

___ TagDude 0.92á+[DM]
++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++
spam protection measure, Please remove the 33 to send e-mail





  #27   Report Post  
Rick
 
Posts: n/a
Default Condensate pump wiring

The A/C contactor and humidifier solenoid share the same 24vac transformer.
They are both ac relay coil loads, zero-crossing would snuff any serious
transients.
--
Rick

snip...........
Hcac Tech2 wrote:
Well, there are 2 different ways you can do it. first you could just
break the commons to the humidifier and a/c
++++++++++++
John wrote
To do the above, the Aprilaire would have to be using the same
transformer as the furnace/ac and have to be 24vac of course. This I do
not know but If that is true, you could do it that way. I would not
prefer to do it this way but granted you could and be acceptable.

++++++++++++++++++++++
John wrote:
I would not even consider this due to the transits and current draw of
the solenoid. It could damage the thermostat or the cooling anticipator
circuit. It might work one time or a hundred times, depending on the
thermostat circuit. I would put this approach in the "jerry rig"
category. It would be very confusing for the service people down the
road also.

Not bad though HvacTech2, not bad

John Williamson


  #28   Report Post  
kjpro
 
Posts: n/a
Default Condensate pump wiring

"Stormin Mormon" wrote in message
...
I've wondered in my quiet moments how CBH manages to stay in business? I
mean, in the couple years I was on alt.hvac he was consistently rude. Does
anyone else wonder?

--
Christopher A. Young


No, why???

He knows his ****!! Unlike most in the trade.

The knowledgeable always have work fixing the equipment screwed by hacks!!

That's why the competent HVAC techs are in HIGH DEMAND!

--
kjpro
_-~-__-~-__-~-__-~-__-~-__-~-__-~-__-~-__-~-__-~-__-~-_

( kjpro @ starband . net ) remove spaces to e-mail

Want it done yesterday? Or done right today, to save money tomorrow!!

_________________________ __





  #29   Report Post  
Rick
 
Posts: n/a
Default Condensate pump wiring

Your logic is partially correct. I would leave the ac on a higher temp for a
weekend, shut it down on longer trips.
I dont go down the basement daily, and my old system had flooded a bit
before I discovered the problem. It wasnt a big deal.
As for the furnace,
If I cut off the furnace with the overflow switch, you are right, the
humidifier wont run either, but I risk frozen pipes.
If I cut off the humidifier solenoid, and the pump fails, the furnace will
continue to run, generating condensate and cause a minor acidic flood.
Right, we've beaten this thread to a pulp.
--
Rick

"Stormin Mormon" wrote in message
...
Well, from what I read of this snarl, it sounds like you don't want the
humidifier draining water into the condensate pump if the funace is dead,
and the house is cold.

On the humidifiers I've wired, the water valve is controlled in part by

the
blower fan of the furnace. So, if the furnace isn't running, the

humidifier
won't get any water. In short, it's a non issue. If the furnace isn't

warm,
it won't be blowing. If it's not blowing, the water won't be flowing.

You can switch the AC, if you want. That's easy enough. But I wouldn't
bother to leave the central AC turned on if I wasn't home. Another non
issue.

Have I been a bit reassuring? Hope so!

--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.org
.
.

"Rick" wrote in message
...
I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would

like
to use the condensate pump's cutoff switch to shut down the A/C and the
humdifier water supply, but not the furnace, to avoid a freeze condition.
How can I wire the system to work? The alt.hvac guys were less than

helpful.
Thanks.
--
Rick





  #30   Report Post  
kjpro
 
Posts: n/a
Default Condensate pump wiring

"Stormin Mormon" wrote in message
...
Well, from what I read of this snarl, it sounds like you don't want the
humidifier draining water into the condensate pump if the funace is dead,
and the house is cold.

On the humidifiers I've wired, the water valve is controlled in part by

the
blower fan of the furnace. So, if the furnace isn't running, the

humidifier
won't get any water. In short, it's a non issue. If the furnace isn't

warm,
it won't be blowing. If it's not blowing, the water won't be flowing.

You can switch the AC, if you want. That's easy enough. But I wouldn't
bother to leave the central AC turned on if I wasn't home. Another non
issue.

Have I been a bit reassuring? Hope so!

--
Christopher A. Young


As I just replied to your previous post, this is exactly why we are in
DEMAND!!

Below is the OP, re-read the post and see if you can comprehend the question
he actually asked.

Competent techs :

1.) to be able to read and follow directions
2.) to be able to find the problem and be able to solve it

--
kjpro
_-~-__-~-__-~-__-~-__-~-__-~-__-~-__-~-__-~-__-~-__-~-_

( kjpro @ starband . net ) remove spaces to e-mail

Want it done yesterday? Or done right today, to save money tomorrow!!

_________________________ __

"Rick" wrote in message
...
I have a newer Rheem RGRA gas furnace with a Rheem A/C controlled by a
Honeywell T8600D thermostat, and an Aprilaire 760A humidifier. I would

like
to use the condensate pump's cutoff switch to shut down the A/C and the
humdifier water supply, but not the furnace, to avoid a freeze condition.
How can I wire the system to work? The alt.hvac guys were less than

helpful.
Thanks.
--
Rick






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