Heating Help

Control

@ September 16, 2011 2:55 AM in How would you

Doing well Terry, trying to stay busy.  I guess this is one of those scenarios in that you have to be there to actually see what they have, load requirements, product or space to be maintained at a given temp.  Sorry, I have no quick answer, but you are on the right track.  I to provide a customer with research to back up my plan of action in the presentation. 
Keep me posted as to your progress and final set up of your plan.  Good luck and remember you and I know the right place to go with questions or opinions,....."The Wall" of course

Mike T.

Staging

@ September 15, 2011 5:38 AM in How would you

There could be a number of options depending on how it was designed.  Are they using half of the 15 ton and 2 or 3 30 ton to control load?  Maybe they are Controlling using Lead /Lag scenario.   There is some major power consumption happening and I'm sure they try to keep it to a minimum.

Just some thoughts

Mike T.

Effects of water on regulators.....

@ September 8, 2011 5:41 AM in Flooded Appliances

Natural gas regulators work on the principal if the differential of atmospheric pressure on the bellows or diaphragm, which is a thin membrane and the spring tension that is applied to the assembly.  Just add a little water and it WILL NOT WORK as designed!.  Look at Maxitrol sites or any dedicated regulator manufacturer and you will find that any contamination call for replacement if the Combination valve in your case or a dedicated step regulator.  Notice that almost all adjustment screws for valves have a tiny pin hole in the screw head.  This is to alleviate air that builds up atop the diaphragm.  If air is trapped and cannot be relieved, the bellows or diaphragm cannot properly self adjust to accommodate the flow of the gas. 
   I personally would not take the chance of putting back into service any valve or regulator that has been saturated with, water, Ice, or any liquid which can alter the operation of the part.
Just an opinion.  Consult you local gas supplier and they will tell you the same.

Mike T.

Unusual, but doable........

@ September 3, 2011 9:27 PM in Hot yoga studio heat source

Solve all of your problems with a MUA unit.  Although the temps are rather outside of the box, you can at least cover your heat and fresh air issues.  As far a latent concerns, I'd be more concerned with Sensible load since The environment is what you will address with or with out bodies. 
What area of the country?
Are you actually going to try to dehumidify this space?
Unfortunately the bank you don't want to break, is best served with the proper equipment.  That will up the price.
If they want to maintain this 104*f space temp, I would think the 40%F/A should take care of your cooling needs since it should never be called for.......at these temps.

Interesting scenario, but keep us posted as to what your thoughts are and any concerns.  I did not read anything about RH% in the structure

Mike T.

Is it time?

@ August 26, 2011 8:04 AM in Pulling down a system help..,

I think it's time for new hoses Terry....lol  I cannot even tell what color they are any more..

Peace

Mike T.

Q?: 3 to 5 psi???

@ August 15, 2011 9:09 PM in Boiler Manifold Pressure

Something is wrong with that number.  Chances are there is a decimal point somewhere in that #.  3 to 5 will blow out that regulator on the boiler.

What do ya think Tim?

Mike T.

Ahhhhhhhhhhhhhh.

@ August 10, 2011 6:39 PM in Air handler sizing

I do REPENT to the fullest extent of "THE WALL"

"T", you will ot believe this BUT.......

@ August 10, 2011 6:32 PM in Condenser Fan Motors and Blades

I do have the pitch gauge and it has not been crushed or damaged while ridding around in the back shelf of the truck.  I'm not sure how this happens, but I think it's Divine intervention........;-)  Everything else in the back that shakes, rattles and rolls seem to get dinged up....Go figure.
   Things been well in Buffalo, been the hottest summer is recent memory.

Mike T.

Is it me or is Wiring diagrams getting smaller in print???

@ August 10, 2011 6:26 PM in Is it me or is Wiring diagrams getting smaller in print???

OK 46 now, been in the service field for 27 years and I know my eyes need the occasional reading glasses,....BUT  The print is dang small and I'm not sure the reason besides more info and I was wondering how the rest of the Service field thinks about this?

Mike T.

Agreed, need info.

@ August 9, 2011 2:46 PM in Trane chiller trips on excessive condenser pressure

Water cooled cond or air cooled ? Chime bach in so we can try to help.

Mike T.

So,....So ......TRUE.

@ August 9, 2011 2:33 PM in Condenser Fan Motors and Blades

They go hand in hand.

All in the #'s

@ August 9, 2011 2:30 PM in Air handler sizing

This is where all thoes books I USED to throw away come into play.  Lot's of info and in hind site, i usually regret throwing them out but now keep EVERYTHING......

Mike T.

A learning experience....

@ July 28, 2011 6:38 PM in wiring question

Yes the system started and ran great, but in affect, the start winding of the compressor was burned out!..  The run cap has 1 job and 1 job only to for a brief second, assist the start winding to crank the compressor over.  Once it starts and runs, no assistance required.  The caps essentially charged upon call than plays a minor roll for operation.  Since the leads were reversed,  the problem is that the start winding is CONSTANTLY engaged.  Surprised that it lasted as long as it did.  Chuck it up to "Seen that, now I know".......:-)  Remember the run cap only stores electrical energy.  Basically it kicks the start winding in then ........out of the circuit.

Hope this helped.
Mike T.
One thought:  Remember how when troubleshooting , say condenser fan motor?  Will not start by itself, but if I give it a twirl,,...................Runs great.................?  Ring a bell?

Gene, did you Boot me out?

@ July 28, 2011 5:55 PM in wiring question

I was trying to explain this wiring and BAM,,,,,,  I was out of the pool........:-)

Just wondering if it was you or something on my end...

Mike T.

Agree.

@ July 27, 2011 5:19 PM in Chiller Temp

I usually shoot for 10*F, But not a rule.   Every system is different and assuming that the pipe sizing is correct, I am looking for my chilled water to handle the design flow.  When you go outside of recommended range, "Say too small or too large of pipe, your delta "T^" may not work the way the manual Say's.  It's all about flow of the medium/water or glycol.  Can you emagine having 4" pipe?  Yea you have your 10 diff, but the water volicity does not match your chiller. 
B&G has a nice system sizer that gets you in the ball park abd is very useful for calculations, volicity noised etc.....  B&G.COM

Mike T.

Wholy COW???

@ July 27, 2011 4:57 PM in Averaging sensors for thermostats

Mark:
   At first I had to take a double take on your figures, but all is goo with you......:-)  Not being a math major, I used the all powerful calculator and I get your result and your thinking........
So I'm not going crazy......

Mikie T.

Gene, Great points.

@ July 27, 2011 4:50 PM in Icing indoor coil

As you know by the time we get there it has been cycling for 1 billion years........Exaggerating,.... So the info you give will only result from a somewhat fresh start.  The ice will build and compound itself due to the remaining coil area not yet frozen and result in the beer cooler scenario. 
     Air flow is also important and can play a roll in this problem, but let's see what other facts can be provided.

Great to talk to you again Geno.......

Mike T
Empire Mech.

This sounds like a test......:-)

@ July 25, 2011 9:08 PM in TXV capacity

I'll say Orifice size in valve, Delta" P" between hi and lo side and The temp and state of the liquid entering the valve...........

I took a shot.  It's been a while since theory racked my brain......

Peace

Mike T.............

22 YEARS?

@ July 25, 2011 8:28 PM in rheem ac noise

Wow, count you blessings and not to sound consenting, but the average life of ANY system is roughly 12 to 15 years before you can expect problems like you are experiencing.  Yes, I know this does not help, but the HVAC does not owe the church anything.  It has served you somewhat well.  Now a decision has to be made as the HVAC community can only put on so many band aids before you start saying I will try another contractor".  Unfortunatly, these service calls cost a lot of money and in the end of things you will never be happy.  This syste3m is crying out, "I cant do it any more".  Just an opinion.

Mike T.

Hey Terry, how have you been?
    

Evap coil

@ July 18, 2011 5:21 AM in return,filter,comfort air blower,coil and supply trunk

Not unusual and sometimes it is where it is due to limited space.  You will also notice that the condensate is trapped or should be trapped because of the neg. draw.  The only problem is the filter.  Should be doing its job before the A/C coil.

Mike T.

Wow.........

@ June 15, 2011 4:37 PM in The Demise of Hallowell International

Nice explanation.  As soon as I'm finished with my Chess match,.....I will comment.  :-)


Mike T.

Tragic...

@ May 14, 2011 2:39 AM in Landlord Charged with Reckless Homicide in Tenants’ Carbon Monoxide Deaths

Could have been prevented, but the all mighty dollar prevailed.....Allegedly........

Peace....

Mike T.