We had a custom unit built to fit the curb and duct layout, although the new units are multi zone they will be hot deck cold deck as opposed to multiple furnaces and evap coils. We have 2 more going...
Type: Posts; User: finest
We had a custom unit built to fit the curb and duct layout, although the new units are multi zone they will be hot deck cold deck as opposed to multiple furnaces and evap coils. We have 2 more going...
[QUOTE=sockwalker;21801971]Finest,
I realize this thread is now nearing 4 years old, but I've got a similar 48MA034- unit (2000 model-year) with two failed auto-pilot flame sensors. Of course my...
E-bay has been my source for the last 2 years, must have missed them this time, you have 4 dollor signs ($$$$) does that mean the bidding is starting at $1000.00? thats some mark up!
Funny, Nesbit makes a replacement for this machine at three times the cost of a standard RTU of that size,.....
Costony, i will check johnstone , but if my memory serves me correctly that...
Actually i have close to a dozen of these in the northern NJ area. They have been around a long time and there is no easy replacement as of this date.
I wish it would Glenn but it doesnt allow for energizing the 110v gas valve after the pilot has proven, nice kit though.
Guys, thanks for all the help, very much appriciate.
The Y86 was my first thought but these are tight burner compartments with 12 110V gas valves, imagine the logistical issues with trying to mount all those modules and XFMRS not to mention the cost.
This is a multizone with with easily replacable heat exchangers, great for service $ but getting harder to find parts. Very hard unit to replace and very expensive.
Having trouble finding the W/R 3049-5 re-light mercury autopilots for these RTU"S, is anyone having the same issues? Carrier is shrugging there shoulders and have no solutions other than replace the...
sorry i didnt read 15 amp breaker anywhere, only 15 amp fused disconnect
you must protect that 12gauge wire that you put in with the properly sized breaker
Anyone have any info on blazer units? I have 5 units and would like to get manuals, models 906, 704, 202,and 804 . I believe blazer was out of paterson nj and is now out of business .
We put them in ,Id love to know what problems you are having
stainless is better, fresh air is better, jmho
The pressure test is a great way to find the leaking part of the system but is usually very expensive, who is paying for that? Also a leak in the first year should be covered, if they say they found...
Your clean out tee should be capped, your unit will not drain properly like that, p traps are not normally installed in the pan, i usually install tees, unions, and vents for proper draining and...
OK so a flexable duct connector is a "canvas collor" thanks wrangler.
BT please explain the difference between a flexable duct connector and a flex duct, I know there is a difference. Also we limit our flex to 15 foot run outs max.
Sounds about right although many areas have different rules. In my area you would need stairs, a plywood path to the a/h and a lighted attic. In addition flex duct is not allowed to be covered with...
That was great reading heartman.
Had one last week, it was a bad breaker, but the unit i was working on also megged bad.
Not sure what carrier actually specs for re-using old linesets when going from r-22 to r-410a/ puron, but standard practice for most is to flush with rx-11 and blow out with nitrgen and pull a good...
He sais blow out l/s with nitrogen? should replace l/s or flush with rx1.1
84,790
I havent seen the set up yet, so i dont know how the head pressure is controlled , all the info that i have was related to me by the tech. who set it all up. Ill relay what new info i have and hope...
Thanks for the quick response, i was thinking along the same exact lines but needed a confirmation. Have a great new year.
I dont do any refrigeration but i was asked a question, i dont have many details but any help would be appreciated. Walk in box with outdoor c/u,R-12,pressure switch operating control cuts in @34#,...
Yes i mean insulation, the entire length of the suction line should be insulated.
Kinks are excusable and repairable, but no armaflex on the entire suction line outside the house is inexcusable.
A performance test or a proper balance sounds good, if its doing what its designed to do then id say your as good as its going to get, but if air flow is lacking then get it fixed.
This guys good
This is one serious disaster.
You need a load calc but 60k sounds just a bit light for 1296 square ft, id lean more towards the 65 k.
Styrofoam blocks are sold in the supply houses in my area for attic installs, however this install is horrid,the clearences to combustables must be adhered to, and it appears that in one photo the...
A properly installed and insulated attic system will work great,i would suggest completely replacing the entire system.
Great work,Great pics, ive also wondered about all those rtu's out there , just doesnt make any sense, you have a good argument about the basements, but what about splits, with a closet or attic a/h,...
Motor speed should not matter because its an open compresor, just change the pulleys so that you have the proper rpm at the comp.
Most likely means some type of head pressure control along with a crankase heater, if its a rtu than a economizer setup should suffice.
I wasnt thinking crawl space, great idea to hang in there, i was thinking attic jobs where we normally use styrofoam pads or blocks, 1 set under the aux. pan and one in the pan to get a total of 8...
What is a no-name mini split? Never heard of that brand. Are you talking about a thermal overload? Its very hard to imagine the mistake that you made, 1 pound verses 1 oz is a huge error in a system...
There are no givens or guarentees, there are conditions (usually service related ) that a LL can sweat or that extreme conditions can warrent the LL being insulated, i suggest having a profesional...
Why hang units to begin with?
The LL is not commonly insulated ,however i have heard of some guys doing it in extreme conditions.
canvas collor for the last 21 years, before that i dont know
We fired a guy once for masterbating during an install, the homeowner caught him and wasnt very happy.
OMG shut that thing off and follow up on the repair before somebody dies.
A low ambiant control will allow the unit to operate in colder weather in the " cooling mode ", it will not give a heat pump the ability to provide more heat in the winter.
Sorry, i see your back pressure is 90#, looks overcgarged from here.
How did you charge this and what is your suction pressure?