Type: Posts; User: ac/dc
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Yes there was a mistake, The guy at the parts counter got something wrong.
His manager got the right price and it was reasonable. Im glad I posted because when he told me that I asked him to double...
We condemned the heat exchanger in a 13 yr old 10 ton Voyager. I called Trane parts to get a price to send a quote to our customer, They want over
$10,000 for it. I cant believe what Im hearing....
I would use the process of elimination. Maybe its the in the economiser and
trips on cool mornings. Have you checked economiser operation? I have found
shorts in the bundle of wire running through...
I would use the Lennox oem replacment parts to save time and to be sure its repaired to factory specification. But you will likley need the heat package M# if you call Lennox
Is it Columbus Ohio? Col. Temperature Control on 5th ave should be able to get you the Viconics control you need. You can have it next day shipped
I dont see anything wrong with the idea of a splt system with 6 zones. If the
load calc. calls for 2.5 tons so be it. A good zone system installed properly
will serve well in this application. It...
I would measure the cfm at supply defusers to see what is being delivered.
I would also traverse the supply duct to see what the air handler is actually
putting out. I would assure the filters and...
What are the problems your having. Is the supply air staying around 55 ?
I assume you need to dehumidify the rooms. Is there adequate ducted returns for these rooms? I would consider a stand alone...
Thanks for the replies guys. I spent some more time investigating this. Using
a sheet of paper from my note pad and smoke I determined the exact place
the water is getting in. The door gaskets are...
Water leaking indoors was the complaint. These are 15 and 20 ton L Series.
I determined the water is being drawn into the blower compartment (durring
heavy rain) around the door. These units are...
Yes I have! I have replaced at least 6 all within the 1 yr warranty. Its a
stupid engineering mistake that will cost building owners and tennants alot
of money. And I get to be the guy in front...
I thought gas would not flow unless there is a negitive pressure at the outlet
of the valve. That is why they dont need a saftey switch to prove the comb-
ustion fan is running. If its not...
I would use one of the AH's xfmer to power the stat and a relay in each of the other 3 pieces of equip. Each cond. and AH would use thier own xfmer
Much simpler than trying to paralell xfmers which...
You might be able to just install eggcrate grills in the drop ceiling to solve the return air problem. the area above the ceiling serves as the return air plenum.
No sheet metal needed. Many of the...
Yes a/c is correct but what does that have to do with
the heat not working. Did you try heat op. in test mode?
By the stephen, where the expansion tank is connected
to the system is the point of no pressure change. The pump cannot change the pressue at this point. So it is desirable
to pump away from the...
What size is the unit?? That 12x27 is actually 10x25
because of the isulation liner. That looks like a 7.5 ton
or maybe 10.My ductulator is in the truck but Im pretty
sure 10x25 wont even handle...
Caulk where the cap meets the liner? That makes sense
I got up there and chipped away all the loose stuff which
was alot more than I thought. I noticed all the damage was
around the flue cap. So i think is is due to the moisture
in the heat...
Yes there is a ceramic liner. The chimney is for a gas
fire place only. I found a place that has a polymer
compound for repairing the cap. I thought I would reskim
the entire cap and then use a...
I noticed several cracked bricks on the top 3 ft of my
chimney and a couple brick have lost the entire outer face.
A roofer told me that water is penetrating the brick & morter and freezing causing...
We're a non union co. and we provide all of our own tools
except torch.,vac. pump,recovery,pwer tools,shop vac &
hoses. They also cover repairs like new gauge or hoses etc
I believe I have at...
On some Carrier package unit models there is a stainer screen on the outlet of the condenser coil. I would check
for a temp. drop there and throughout the circuit before
concluding the metering...
That makes sense to me. But is there a special flange with one side metal and one pvc? Seems that would work good.
Why should it be Schedule 80? Im guessing it can tollerate
more vibration and...
Its a problem that occurs durring econo. operation. Not when ventilating(min position). It seems we've lost Fonzy
anyway. I would agree excessive fresh air
would add to the problem and it should...
Do the 6 precidents have power ex. or barometric relief dampers? What if you add power exhaust to the Voyagers?
The relief dampers wont work if the return air duct poses
more restriction to leaving...
I have to repair a leak in a building loop where the
chiller PVC piping ties into the building loop. It leaks
at the threads of a 3in. pvc male adaptor. It is screwed into a brass body valve. With...
Wiz, The econo. was not set up for IAQ. I agree mua would still be needed if a EF was used. The min pos. could be used to provide some mua but you cant count on the unit fan to be always on.
Thats very possible Ralph, There has been a hood over the oven at every other WG Grinders Ive been to and there certainly should be a hood over this one. That would serve them much better than a...
Found out we only did the shell installation.So the problem isnt ours and I wont get the oppurtunity to
No there isnt an Ex fan or MUA.
I dout if the door mechinism is the culprit....
I agree a power ex would solve the problem but all the facts must be in order before you throw it back to the engineer. You know how they are never wrong.
Core, I checked the door with the unit off...
I checked the fan, The sheave was not adjusted for max
airflow and I will slow it down. The thing is Im not positive if we did the tennant finish and air bal. yet.
Ill find out Mon. when I can get...
Ran a warranty call friday to a strip mall space occupied
by a w.g. grinders sandwich shop. The doors would not close. Arriving I found excessive space pressure to be the problem. Checked the rtu (...
Is it possible to reloate the Freshair intake? Charcoal
may help the odor problem to some degree but wont stop co
or co2 Fresh Air is important for indoor air quality and
is required by code so I...
Is it possable the metering device used in heat mode has problems? The metering device for cooling is ok. I agree with weighing in the r22 and looking at water flow. Should be 10deg diff.in and out....
I agree.. the vp8000 is my favorite. The residential one is
much cheaper. However I thought I read in its manual that
it is powered by batteries even though it has a common.
we got them from Marvair in North Carolina
All good advice...but I feel compelled to repeat this...
Pack a sensible set of tools in a pouch or backpack or pull
them up with a rope but ALWAYS use both hands for climbing.
I have never fallen...
Ive serviced and installed dozens of Bard and Marvair on
these cell tower structures and have never seen a fire damper requirement. I dont remember ever seing a F.D.in an
outside wall of any...
Carriers 48HG or 50HG units (I forget which)have that option. We've installed several of them in vav applications
They are Carriers higher end units with "comfortlink" controls. Nice units but...
We have a great relationship with our Trane office,We sell
alot of Trane. We recently had a flat refrig circuit.Found
leak in cond coil.I asked about labor reimbersment and I got a flat NO. Carrier...
I agree with wannabe,The pulse is probably the best 90%+
out there. Shame they stopped making them. I would like to have one in my house. Ive serviced and installed dozens and
it beats the other...
I agree with James, The pump will run constant in 30F temps
and below. Since you have gas aux heat I would set the bal
point at 45F or so. At this temp the pump will lock out
and the furn. will...
BBUCH, I agree both fans should be on in heat mode always.
Last I checked Trane doesnt use fan cycling for low ambiant
cooling. The board uses the outdoor air sensor and cycles off the compressor...
Isthe space cold? The fan will cycle in this case if it was temp. operated only but if the switch has a heater and 24V at heater the switch should stay closed. The wiring diagram symbols may show...
Cant say I have a solution except warmer indoor temp so
the heat exch. isnt so cold. Is this moisture causing any
problems aside from corrosion? Does it have the oem comb. blower in...
I was thinking lack of combustion air/maninifold presure.
I can understand low return temp causing condensation but
how does it cause sooting? havent seen that on this type of burner. Just curious ...
Sounds like maybe flue gas is condensatingon on the heat
exch. before being exhausted. Does this rtu have a combustion blower? Is the indoor temp low? Is the manifold gas pres correct,
Did the time delays have that popular label on them...MADE IN CHINA?
Tom, crab is right, there likley is 2 transformers in this
application and you would jump rh and rc. sorry about that