| Author |
What makes a heat-pump click?
|
|
| victoria 2005-10-19, 2:21 am |
| I was doing a routine filter change/inspection on 6 R/T H/P's today and
noticed that one unit was making a clicking noise about every two seconds.
It was running in the cooling mode and doing the job OK but continuously
made this click...click...click, loud enough to hear from across the roof.I
pulled the wire connector off of the R/V forcing it into heat mode and the
clicking stopped. Reversed back to cooling and clicking started again
immediately and continuously.Going to go back tomorrow and put the gages on
and check it more closely but thought I would ask if anyone had come across
this problem before. 1997 Carrier 50TJQ006 Thanks
| |
| Noon-Air 2005-10-19, 2:21 am |
|
"victoria" <t6420262@telus.net> wrote in message
news:xXj5f.43225$ir4.5076@edtnps90...
>I was doing a routine filter change/inspection on 6 R/T H/P's today and
>noticed that one unit was making a clicking noise about every two seconds.
>It was running in the cooling mode and doing the job OK but continuously
>made this click...click...click, loud enough to hear from across the roof.I
>pulled the wire connector off of the R/V forcing it into heat mode and the
>clicking stopped. Reversed back to cooling and clicking started again
>immediately and continuously.Going to go back tomorrow and put the gages on
>and check it more closely but thought I would ask if anyone had come across
>this problem before. 1997 Carrier 50TJQ006 Thanks
There's your problem.... its a Carrier
| |
|
| Sorry if this gets posted twice, dont see the first one..
I had this problem before, was the check valves. Theres a ball bearing
inside the check valves that gets unseated/seated during cooling.
Carrier had a fix for this, was a clamp with a magnet that held the
ball bearing with magnetism. Check with your local Carrier Service
advisor, the kits used to be free...
Ed
| |
|
|
victoria wrote:
> I was doing a routine filter change/inspection on 6 R/T H/P's today and
> noticed that one unit was making a clicking noise about every two seconds.
> It was running in the cooling mode and doing the job OK but continuously
> made this click...click...click, loud enough to hear from across the roof.I
> pulled the wire connector off of the R/V forcing it into heat mode and the
> clicking stopped. Reversed back to cooling and clicking started again
> immediately and continuously.Going to go back tomorrow and put the gages on
> and check it more closely but thought I would ask if anyone had come across
> this problem before. 1997 Carrier 50TJQ006 Thanks
I've had Carrier HP's making this noise where the check valve was
seating/unseating. The click is a ball bearing inside the valve that is
supposed to stay seated but often doesn't. Carrier had a fix for this
problem, it was basically a clamp with a magnet that clamped on the
line to help the ball bearing stay seated with magnetism. Talk to your
Carrier field service advisor, the kits used to be free...
Ed
| |
| victoria 2005-10-19, 11:21 am |
|
"Ed" <austin1880@aol.com> wrote in message
news:1129698299.211070.65960@g14g2000cwa.googlegroups.com...
>
> victoria wrote:
>
>
> I've had Carrier HP's making this noise where the check valve was
> seating/unseating. The click is a ball bearing inside the valve that is
> supposed to stay seated but often doesn't. Carrier had a fix for this
> problem, it was basically a clamp with a magnet that clamped on the
> line to help the ball bearing stay seated with magnetism. Talk to your
> Carrier field service advisor, the kits used to be free...
>
> Ed
>
Thanks Ed ,I will check with Carrier.That sounds like the problem.A magnet
fix sounds a lot easier than replacing the check valve.
| |
| PrecisionMachinisT 2005-10-19, 5:21 pm |
|
"victoria" <t6420262@telus.net> wrote in message
news:6ms5f.34341$Io.13990@clgrps13...
>
> "Ed" <austin1880@aol.com> wrote in message
> news:1129698299.211070.65960@g14g2000cwa.googlegroups.com...
continuously[color=darkred]
gages[color=darkred]
> Thanks Ed ,I will check with Carrier.That sounds like the problem.A magnet
> fix sounds a lot easier than replacing the check valve.
>
>
Should be able to easily isolate said noise source using ultrasonics.
--
SVL
| |
| victoria 2005-10-20, 1:21 am |
|
"PrecisionMachinisT" <precisionmachinist@hotmail.com> wrote in message
news:r5GdndLRAN_5AcveRVn-rQ@scnresearch.com...
>
> "victoria" <t6420262@telus.net> wrote in message
> news:6ms5f.34341$Io.13990@clgrps13...
> continuously
> gages
>
> Should be able to easily isolate said noise source using ultrasonics.
>
> --
>
> SVL
>
Ed was right on target with the check valve suggestion. It was easy enough
to isolate using my finger on the tubing entering the outdoor coil. I knew
that it was the check valve making the clicking noise but I didn't know why.
I have never seen that happen before.(I should have been more clear in my
original post) I didn't get back to the unit today as more urgent problems
took priority.
A 50lb. light fixture complete with transformer and ballast fell from the
ceiling into one of our public swimming pools while more than 70 people were
in it. Luckily it didn't hit anyone.What a close near disaster. Anyhow I
spent the day installing secondary support cables on the remaining 29
fixtures so that we can reopen the pools to the public.
The pool complex is only 5 years old and corrosion had eaten through the
1/8th stainless steel cable. We installed new 3/8th S.S. cables to back up
the originals. Pool air is an amazingly corrosive environment. Hopefully I
will get back to the heat pump in a day or so.
| |
| ~^Johnny^~ 2005-10-21, 10:21 am |
| I've known a few women who made me click.
--
-john
wide-open at throttle dot info
| |
| New Directions In Building Services \(Australia\) 2005-10-22, 8:21 am |
|
"victoria" <t6420262@telus.net> wrote in message
news:KBE5f.21183$y_1.196@edtnps89...
>
> "PrecisionMachinisT" <precisionmachinist@hotmail.com> wrote in message
> news:r5GdndLRAN_5AcveRVn-rQ@scnresearch.com...
> Ed was right on target with the check valve suggestion. It was easy enough
> to isolate using my finger on the tubing entering the outdoor coil. I knew
> that it was the check valve making the clicking noise but I didn't know
> why.
> I have never seen that happen before.(I should have been more clear in my
> original post) I didn't get back to the unit today as more urgent problems
> took priority.
>
> A 50lb. light fixture complete with transformer and ballast fell from the
> ceiling into one of our public swimming pools while more than 70 people
> were in it. Luckily it didn't hit anyone.What a close near disaster.
> Anyhow I spent the day installing secondary support cables on the
> remaining 29 fixtures so that we can reopen the pools to the public.
>
> The pool complex is only 5 years old and corrosion had eaten through the
> 1/8th stainless steel cable. We installed new 3/8th S.S. cables to back up
> the originals. Pool air is an amazingly corrosive environment. Hopefully I
> will get back to the heat pump in a day or so.
Yep - that's what happens when you over chlorinate and don't reduce indoor
humidity.
While you're at it you'd better get a structural evaluation done...
| |
| victoria 2005-10-22, 2:21 pm |
|
"New Directions In Building Services (Australia)" <ndibsNO@SPAMndibs.com>
wrote in message news:dIo6f.3463$96.144230@nasal.pacific.net.au...
>
> "victoria" <t6420262@telus.net> wrote in message
> news:KBE5f.21183$y_1.196@edtnps89...
[color=darkred]
> Yep - that's what happens when you over chlorinate and don't reduce indoor
> humidity.
> While you're at it you'd better get a structural evaluation done...
>
Chlorine is generated on site and maintained at required safe levels (1.5-
2.00ppm) Humidity is maintained around 75% RH by a large air handler c/w
outdoor dampers and heating and cooling(dehumidifying) coils . Chilled water
coil is cooled by two compressors that reject their heat back into the pools
(water cooled with pool water) Heating coil is supplemented with heat from a
desuperheater heat exchanger on the 220HP ammonia system that makes the ice
in one of the arenas.
All systems are computer controlled by a Delta DDC system within required
parameters.
Can you suggest any improvements that would be benificial? I am open to any
ideas.
| |
| New Directions In Building Services \(Australia\) 2005-10-25, 6:21 am |
|
"victoria" <t6420262@telus.net> wrote in message
news:ceu6f.31383$yS6.12618@clgrps12...
>
> "New Directions In Building Services (Australia)" <ndibsNO@SPAMndibs.com>
> wrote in message news:dIo6f.3463$96.144230@nasal.pacific.net.au...
>
>
> Chlorine is generated on site and maintained at required safe levels (1.5-
> 2.00ppm) Humidity is maintained around 75% RH by a large air handler c/w
> outdoor dampers and heating and cooling(dehumidifying) coils . Chilled
> water coil is cooled by two compressors that reject their heat back into
> the pools (water cooled with pool water) Heating coil is supplemented with
> heat from a desuperheater heat exchanger on the 220HP ammonia system that
> makes the ice in one of the arenas.
> All systems are computer controlled by a Delta DDC system within required
> parameters.
> Can you suggest any improvements that would be benificial? I am open to
> any ideas.
>
Victoria,
It sounds like a system that someone's actually thought through.
I'm not familiar with the climate conditions or energy costs where you are,
so don't know if outside air, desiccant wheel pre-conditioning and other
techniques that may help. I'd try to reduce indoor RH below the 70%
(corrosion threshold).
Today I just went to a funeral for a superb engineer who had designed some
great sport centres (swimming pool/ice combination) and the operating costs
were significantly reduced and corrosion rates minimised by the way the
exhaust flues as well as conditioned supply and OA supply diffusers were
placed.
The Delta DDC's are pretty good but to be effective, every sensor needs to
be located correctly and calibrated regularly (each summer and winter in mid
season until stability is assured, then 50% each year as a minimum)
Materials were also selected to minimise corrosion and coils were bligold
coated.
Regards,
Ian
|
|
|
|