Security Seal Facebook Twitter GooglePlus Pinterest Newsletter Sign-up
The Wall
unclejohn

unclejohn

Joined on November 23, 2012

Last Post on March 21, 2014

Contact User

Recent Posts

1 2 3 4 5 ... 16 »

I was

@ March 21, 2014 10:42 PM in Freon leak vs. moisture

On a job many years ago at a Baush and Loam lab that made eye drops. The lab had to have a very low humidity. There were actually two A/C units and evaps were one in front of the other. The discharge of one into the supply of the other. Well the RH was still to high in the room and the job was done as specked. Some real smart guy came out and explain that even though the supply duct to the lab was pressurised moisture was entering the duct. We sealed the supply and the job ran as designed. And I don't see the difference between air pressure and refrigerant pressure.

Dear Professer

@ March 21, 2014 1:49 PM in Freon leak vs. moisture

I would think that vapor or moisture pressure would be the controlling pressure here and not system gas pressure, Since the system piping is dry and the outdoor air would normally have a higher moisture content I would think that moisture would enter the system even on the high side..

d

@ March 21, 2014 1:48 PM in Freon leak vs. moisture

Second

@ March 21, 2014 1:29 PM in Original Equipment

Picture date code may be 42 week of 1960. Still they got there monies worth.

If your talkin

@ March 19, 2014 10:17 PM in compressor

Tin cans your wasting your time,in fact if your under 50 tons your wasting your time.

Watch The

@ March 18, 2014 8:16 PM in Looking for some info.

Pilot burner flame when the main burner lites. Does it pull away from the bi metal sensor, or does the pilot flame diminish in anyway? It may just need a good cleaning of the pilot. Do not use any thing to poke into the pilot orifice. Use air pressure to clean orifice

I reckon

@ March 18, 2014 7:39 PM in Viega design?

You could do 1000' if it was all sized up good.

You have

@ March 12, 2014 10:14 PM in Raypak Boiler Low Temperature Reading

Not given a fountain of info with your post. So we have to start somewhere. Is the thermostat set in heat and higher then room temp?

Is the

@ March 11, 2014 5:44 PM in Mono Flow Issues

Pump installed correctly? Is it pumping the right direction?

Make

@ March 11, 2014 5:38 PM in Gas ignitor only lasts one heating system

And model would be helpful.

The way

@ March 11, 2014 5:23 PM in Pumping away ? I must have something messed up! Help

The extroll tank is piped on it's side like that that has to be a air trap if you are coming off the bottom of the air seperater like you said.

Yes it

@ March 9, 2014 4:56 PM in residential split system shuts down due to overheating

Could be a dirty condenser coil. It may also be low on refrigerant. Most newer outdoor unit 10 years or so have single row condenser coil and all you need is hose pressure and no chems are needed. Some older units have a split cond. coil and you need to remove the top of the unit and clean between the coils.

You are

@ March 9, 2014 4:50 PM in converting from oil furnace air heat to heat pump with furnace as my back-up

Making your life way to difficult. Since you already have a lennox furnace stick with a lennox heat pump. If you do not currently have a variable speed blower stick with a single speed HP.You will most likly need to run a new low voltage wire to both the outdoor unit and the indoor tstat. Carrier makes a two wire indoor stat that will work with your old and new Lennox equipment.

Must be

@ March 5, 2014 11:30 PM in Condensate drain trap question:

To keep critters and the like out because you are right. They would have to hold there breath for 20 feet before the could gain entry to your house because the line as you described it is full of water.

CPSC has

@ March 5, 2014 11:21 PM in Burnham recall?

Three recent boiler recalls all for pressure switch fails to shut down boiler. Burnham was not one of them. US Boiler, New York, and Crown boiler.

Seems Like

@ March 5, 2014 10:51 PM in Help needed on flame rollout switch keeping tripping

The pressure switch is sticking and not opening when the blower shuts off, hence the roll out.

Bradford White

@ March 5, 2014 10:39 PM in Hydronic off new DHW for Basement

Makes a water heater with a space heating loop through a internal heat exchanger. Model # c-dw2-504t10fbn. I'm sure others make them as well.

I thought

@ February 25, 2014 10:50 PM in Coil Material Opinions:

The fan moved the air not the duct.

Does it

@ February 25, 2014 10:38 PM in Janitrol Automatic pilot

Have a thermocouple attached to it? If it does you can still get a BASO control.

Is this a home

@ February 25, 2014 10:36 PM in multiple furnaces going off on flu limet

Or a business? Sounds like you have a sever negative pressure in the space.

Heres What

@ February 23, 2014 12:59 PM in Tim; New IFGC Question

I got from Lennox.
Dear Lennox Partners,
 
Please review the attached article from the WSSC Regulatory Services Group about Chimney Vent Restrictions taking affect December 1st in Maryland.  This will restrict the use if not totally eliminate the use of Chimney Adaptor Kits for 80% Furnace installations and require a Chimney Liner instead which will likely add $1,200 to $2,500 to the cost of the job.
 
Please contact the WSSC Regulatory Services Group for clarification.

 Attached was a PDF file That I can't copy and paste here because I don't know how. But it listed section 504.2.9 and table 504.3 and the 7 times area rule. My gut feeling is they are trying to get rid of 80% furnaces all together

It

@ February 22, 2014 5:10 PM in Forensic Investigation:

Broke.
1 2 3 4 5 ... 16 »