Techman
Joined on December 30, 2005
Last Post on December 3, 2011
Recent Posts
York
@ December 3, 2011 8:33 AM in York Technical Site?
I would like that link also! Hi Mike T.Air Bound
@ December 3, 2011 7:52 AM in air problem - want to pump away
The "boiler" is air bound? Do you have heat on the on any of the floors? W/ your #2- Is the "supply side of the circulator" the water into the circ or the water out of the circ? And as Eric said !, w/ a temporary screw on gauge, flush out the boiler drain valve before putting on the temporary gauge or debris can block your test reading.And as icesailor said !!!!ModCon Books I & II &
@ December 2, 2011 12:38 PM in ModCon Books I & II &
Troubleshooting Gas Electric Ignition Systems arrived today. Thank You Tim!Transformer or
@ December 2, 2011 12:25 PM in Beckett transformer keeps burning out
electronic igniter ? What brand were the replacement xformers?ModCon Books
@ December 2, 2011 12:16 PM in ModCon Books
Hay, Tim McElwain,My NEW BOOKS arrive today. ModCon I & II & Troubleshooting Gas Electric Ignition Systems .I'll be busy for more than a few hours for sure! Studying and drinking coffee and maybe a Yukon Jack or 2!!!!!! Thank's to you Tim for your expertize .Size of zones
@ December 2, 2011 6:57 AM in Furnace blows too much air into small zone.
What is the zone by zone sizing and use? With your 4ton unit ,do you mean, besides the "furnace" you also have a 4t AC system ? The AC needs more CFM then the heating does. With ECM motors the CFM is usually controlled by "dip switches" or terminal boards . The "damper " and "damper ducting " should be bypass air directly from the supply duct trunk to the return duct trunk when needed.no heat?
@ December 2, 2011 6:37 AM in gas furnace is keeping us cold
How does the heat come back on? Make? Mn#? What efficiency is the furnace? I'm assuming here , the furnace starts ,the indoor blower runs an you get cold. You heard the sound of the gas flame or the sound of a inducer fan motor supplying /exhausting air for the fire ?Solenoid valve.
@ November 27, 2011 10:55 AM in Beckett AFG Oil Burner Issues
What is the voltage reading for the coil/time delay device? What is the actual vacuum reading at the oil pump? That reading will help in determining 1 or 2 stage.Warm t'stat
@ November 22, 2011 7:07 AM in Heating unit kicks circuit breaker
Make & model of t'stat?Fan runs
@ November 22, 2011 7:05 AM in Fan keeps running
How long did you wait for the fan to shut off ,after the t'stat was satisfied?For Christmas ?
@ November 18, 2011 6:25 PM in Mod/Con Boilers Volume III is in print
Why not? Good idea Tim! Especially since I recently ordered Vol #1 & # 2 ..........................For Thanksgiving! I Thank You !T'stat wire
@ November 18, 2011 5:25 PM in thermostat wire
for regular thermostats ,like you have,can be either.As JDB said ,watch out for loose strands. So strip back the insulation and twist the strands a few times real good . I think the volt rating is 85v or 90v.Antisapation of Antisipator Setting
@ November 16, 2011 10:09 PM in thermostat problem?
Remove the t'stat from the subbase, remove the "w" wire from the subbase, have a pre-formed piece of wire ( 18-16-14-12-10-8-6 gauge ) with 10 loops, with your AMP Meter(everyone has one ,right?) on the 10 loops ,connect one end of the "multiplier" to the "w" wire,connect the other wire of the "multiplier" to the subbase "w" screw terminal. The AMP reading is ,say, 6amp,then set the antisipator to .6. Some systems may have a higher "start" amps ,then it goes down to the normal amps. Then fine tune!Two tests
@ November 16, 2011 5:32 PM in Honeywell V8204 buzzing?
Check the voltage on start-up and then running volts.Which way to go?
@ November 16, 2011 5:20 PM in 1 unit or 2 on New Construction?
I find ( over years) that zoned compressors fail pretty consistantly. This is due to ,say, a 5ton single speed compressor, trying to cool the 1st floor (which is 35% - 50% of the total BTU load) w/ the 2nd floor satisfied.Then, in the reverse order the 5ton comp is still being damage while it is running. This may take a week or a decade,my heart is with the comp that lasts 20 or more years.Now,adays, there are 2 stage compressors that operate at 66% or 100% so the odds improve. And kinda new on the market is a Variable Frequency Drive( Speed ) compressor. Single speed indoor blower motors are subjected to the same % of duct .But no damaged,but costing more to run with any one zone calling for cooling. Variable speed blowers ( ECM ) are good. NOT EVERY MFRG ALLOWES THEIR EQUIPMENT TO BE HOOKED UP TO ZONED DUCT SYSTEMS . And hardly any, of residential ducted zoned systems have a "pressure relief bypass damper". Most ducted zoned dampered ducting is NOT sized properly according to the "Zoned Duct Sizing Rules" But, I have serviced alot of ducted zoned systems that made me say WOW! WHAT A NICE JOB !Air Flow
@ November 15, 2011 6:40 PM in 392 sq.inches versus 201 sq. inches?
You are going from 20" x 20" to 16"round . Is the round duct ,flex duct? How long? Straight run or turns in the round duct? As above, more info is needed, Rheem mn#, AC?What size is the supply trunk? Maybe the round is the correct size and the square is slightly oversized ? Temp rise across the UNIT ,not temp rise from return grill to supply register.?MC / BX
@ November 12, 2011 7:00 PM in Electrical : wire in conduit
Pssst ! ChrisJ ! Ask about MC / BX connectors!MC vs BX
@ November 11, 2011 5:26 PM in Electrical : wire in conduit
The MC cable has a different wire inside the metallic jacket. The MC wire is our every day, common, THHN wire. And there is a Green ground wire. Do you use Greenfield ? That's empty BX, just the jacket. We carry THHN ,put it in the Greenfield and Presto ,MC cable ,but we carry some MC anyway.Just recently the newer BX has been with made with THHN ,but,no ground.THAT DEPENDS !
@ November 11, 2011 5:08 PM in Electrical : wire in conduit
Do I KNOW what's what? NO WAY!!!!!!!!!!!!!!!!!! I work with an ELECTRICIAN , and I do as he does.! And then when I'm doing my HVACR thing for my customers I still do as he does. And ,yes. I did say that! Kinda Sorta ! Check your LOCAL codes. In 1990 I took the BOCES -Master Electrican, 60 hour course to learn how and why they do what they do for my HVACR stuff .I AM NOT a Master Electrician. I'm a continuing learner. The fitting is only available in 1/2"EMTx Romex ,I think.Conduit/Romex
@ November 11, 2011 3:57 PM in Electrical : wire in conduit
Regular Romex is NOT allowed to be run thru conduit? Either way ,if using EMT conduit an EMT x Romex fitting MUST be used at the top of the EMT. You are not supposed to just put the Romex into the EMT. And file the inside of the end cuts of the EMT ,those burrs will cut into the Romex.Hang on, my electrician buddy [ here in N.Y.] just informed me that what you have is called " a wiring change method" which requirers the" Romex x EMT" fitting and technically the outter jacket should be removed due to the heat dissapation concern. And some kind of conduit MUST be used on any wiring that is upto 8' from the floor. But "LOCAL CODES PREVAIL".Booster
@ November 9, 2011 6:15 PM in Need help with a booster pump.
The "tank fitting "on the left should be the return line and it goes down hill all the way back to the tank, NO low spots are allowed . This transfer pump is NOT a "J" pump as my poor memory remembered. NO valves of any kind are allowed in the return line because this "transfer pump" developes upto 300psi !! Lift is limited to 25', if not ,consult w/ the factory. Copper tubing of the 1/2" o.d. size is required. There is no pressure adjustment or a bypass.The pressure switch should be replaced every three years.So I think if that pressure switch stays closed there could be some serious problems. My setup is on an above ground tank w/ a 100% berm wall . I got my setup thru Sid Harvey's ,Riverhead N.Y. Dave Thomas ,manager.631.727.3225.Part #-P239-1 Supply Pumper. I found my paper work!
