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Type: Posts; User: dave sulz

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  1. Replies
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    Thanks for all the replies. I posted yesterday...

    Thanks for all the replies. I posted yesterday that the distributor is sending a guy to swap the motor on the pump they sent. I was looking to confirm if the motor would burn out like the guy said....
  2. Replies
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    very true

    very true
  3. Replies
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    thanks everyone. this is a basic issue for me but...

    thanks everyone. this is a basic issue for me but the guy told me the motor would burn out. It is only 1/3 hp motor and I did not post the amp draw or hp. lesson here is I always write down volts...
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    to clarify the pump they sent is 1ph not 3ph. the...

    to clarify the pump they sent is 1ph not 3ph. the blower motor I describe has 3ph coming in 3ph compressor but 220v1ph blower. not unusual
  5. Replies
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    Thanks. I checked the amps. In this case 3 pH ...

    Thanks. I checked the amps. In this case 3 pH 230v is 1.4 amp 1ph 230v is 3.5amp. Just a note the flange is the same as hoffman.
  6. Replies
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    The motor is attached to the pump. The old motor...

    The motor is attached to the pump. The old motor is 3ph and the new one is 1ph. The motor is available seperate but I ordered it as one assembly. The distributor told me this morning they will send a...
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    I like them twisted and cut neatly then wire nut....

    I like them twisted and cut neatly then wire nut. With 3 wires they sometimes fall out not twisted. I have made many hot connections in the ceiling say for the new outlet on a RTU change out . If not...
  8. Replies
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    1,487

    3 phase/ single phase pump motor

    Hey all. We have a Shipco condensate return tank with 2 pumps. The motors are 230 volt three phase. They sent a single phase pump. Can I connect 2 legs for 230 v 1phase or will damage to the motor...
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    788

    1 &2 is the start cap contacts on the relay.run...

    1 &2 is the start cap contacts on the relay.run cap was OK. I jumped it for a second or two.
  10. Replies
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    Thank you for that good info.

    Thank you for that good info.
  11. Replies
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    788

    The start cap was dead. I checked it. I replaced...

    The start cap was dead. I checked it. I replaced it with a new one of same specs. I tested it too. Comp started but I shut it off to test it and it didn't start. 1 and 2 had continuity.power again...
  12. Replies
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    788

    Hey thanks for answering. I spoke to Tecumseh...

    Hey thanks for answering. I spoke to Tecumseh tech this am. He said a supper boost will kill the start winding. Also your start cap should always have a bleed resistor for that compressor.
  13. Replies
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    788

    Sorry model aja7465axa

    Sorry model aja7465axa
  14. Replies
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    788

    small walkin box compressor 3/4 hp

    Hey now. Has anyone seen a super boost on a comp.already having a start cap and relay? It was on the run cap. Will this kill the start winding? Thanks all
  15. Replies
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    honeywell w7753A2002 control

    Hi everyone. This control is used a lot in the 5 schools I work in. This is a 5 ton RTU. The cooling relay energizes for 5-7 min. then turns off. The space not cooling to 70 set point. Can I test ...
  16. Replies
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    377

    I should have taken an amp draw.opened lpc.

    I should have taken an amp draw.opened lpc.
  17. Replies
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    377

    compressor not pumping

    Hey now this 40ton aeon has comp. #1 hpc and contactor wire off. The unit is new a year or two old. R410 200 Psi on each gauge comp#1 on brrrr and no press.change . LL same temp.oil in sight glass...
  18. Replies
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    Thank you for this responce.

    Thank you for this responce.
  19. Replies
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    1,028

    He Mr me plumber I'm posting my new experiences...

    He Mr me plumber I'm posting my new experiences for me and the newbies. I'm 45 yes old with 25 yes exp. When I see a control a finally get my meter on I learn it . What are your qualification? You...
  20. Replies
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    351

    The control on the boiler is a Mc don miller...

    The control on the boiler is a Mc don miller 157s. The schematic is showing a drop in water opens the pump and solenoid. It looks like it will never fill. Also each boiler has a pump. The middle pump...
  21. Replies
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    Shipco condensate pump

    This is a shipco mn. Shem 2 steam boilers. The pump controller on each boiler turns on a pump with drop in level.middle pump of 3 backs up either side with more drop opening a solenoid on Esther side...
  22. Replies
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    We had a soft solder joint blow out last...

    We had a soft solder joint blow out last summer.we did 2 systems in the attic. The first knight the customer called and said they heard a loud bang. The liquid line blew on a joint in the middle on...
  23. Replies
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    1,028

    I have 25 years of up to 400000btu. I took a...

    I have 25 years of up to 400000btu. I took a black seal class many years ago but unfortunately at the end the wouldn't let me take the test because I didn't work for a place with the boiler...
  24. Replies
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    I have used the flush kit numerous times for a...

    I have used the flush kit numerous times for a few years.usually a townhouse where line set can't go outside.follow instructions cover eyes
  25. Replies
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    662

    There is an air switch in line with a comp oat...

    There is an air switch in line with a comp oat lockout in hood. With computer forced override small relays pulled in but comp oat and air Sw.are controlling a relay coil to turn on comp contractors. ...
  26. I'm in union cty big roof tops 40 ton 31 ton aeon...

    I'm in union cty big roof tops 40 ton 31 ton aeon metays systems univents airdell
  27. Replies
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    662

    Thank you .used aid tool for geothermal equip...

    Thank you .used aid tool for geothermal equip before the metayas system is new to me. I am new to computer controlled stuff. I'm going to get that this spring.
  28. Replies
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    Sorry that is an ir scanner

    Sorry that is an ir scanner
  29. draining a large hot water system in the summer.

    It is spring time and there are repairs to be made on some large hot water systems but what if not really necessary. One set of pumps 15hp. The other two 7 HP. I'm new to over 400000 btu...
  30. Replies
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    I spoke to fireye tech.this is an is scanner. It...

    I spoke to fireye tech.this is an is scanner. It displays on the screen 0-80. I was confused that I needed to check the s s terminals with my meter. Not with this ir scanner. It is reading 10 and the...
  31. Replies
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    power flame burner

    The model is cr3-co-25 an 089050995 what proves the pilot flame? I read a fireye booklet in the boiler room. I saw terminals to check flame.how do I verify pilot and main flame signal.?I'm glad the...
  32. Replies
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    aaeon 40 ton rtu

    The unit is controlled w metays system. I over rode 4 stages of compressors. Never came on. Lowered oat lock out to 45. Erv wheels on exhaust wheel on no comp. Fuses good . Raining so boards getting...
  33. I'm now in charge of 2 approx.2 million btu...

    I'm now in charge of 2 approx.2 million btu boilers in a high school . The boiler psi is 27. New feeder.25-75 psi 1 in. Set for 27 psi water 170 deg. The tops are teed together to 4 huge expansion...
  34. Replies
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    I was on a ton of Navien installs in the past 5...

    I was on a ton of Navien installs in the past 5 years.we also used the fb38 reducing valve. I went back 5 times out of 30 or do with a 9 lb lock out
  35. Thread: Leak on HP

    by dave sulz
    Replies
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    1,047

    I found a leak last summer w/ dye.the ez trap was...

    I found a leak last summer w/ dye.the ez trap was green.I sprays out green if you don't have low loss fittings on hoses.it hits the house easily.I use rags.
  36. Replies
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    I have learned a lot about these wacky units from...

    I have learned a lot about these wacky units from this site.thanks to all for sharing info.
  37. Replies
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    unit ventilator

    This is a trane mn. vuvc15011e0fac000001210 the blower MTR has a black jumper wire. Also why is black and red both on the same terminal on the relay? What is the transformer doing to the blower...
  38. Replies
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    371

    Thanks for the response.my phone won't open the...

    Thanks for the response.my phone won't open the attached. I'll go on my computer tomorrow.
  39. Replies
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    371

    a350p johnson controls

    This control is in a steam unit ventilator in a school. What does this control do and how does it work?
  40. Johnstone ordered thst for a york unit

    Johnstone ordered thst for a york unit
  41. Replies
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    Im old enough to have worked on that control 20...

    Im old enough to have worked on that control 20 plus years ago. The purpose of the heater in the fan control is when you start up heat in morning with cold ra temp the fan control will cool off...
  42. Oil needs 2 in above at least. Gas or hp the coil...

    Oil needs 2 in above at least. Gas or hp the coil needs 1 in. The case coil usually ralised pan 1in inside case. Uncased coil i make a pan inside plenum with 1in bends. Oil is higher.some of the...
  43. Replies
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    navien boiler

    We install the ch240 ng all the time. A few after a few weeks make a loud whistling noise when the burner ramps up. With tech support checked air to gas reading ok. New air sw i had this time. They...
  44. Replies
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    When the air gets behind the water the 3/8 tubing...

    When the air gets behind the water the 3/8 tubing sounds like a goose. Wooldlodoooss.
  45. Replies
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    Put a tee under a sink before the trap. Thats why...

    Put a tee under a sink before the trap. Thats why i do carpentry too so i can open walls and sheetrock. Makes me more money.
  46. Replies
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    I installed one recently. Came with...

    I installed one recently. Came with router.instructions were good.
  47. Replies
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    The AOP forums/Ask Our Pro's forums, are...

    The AOP forums/Ask Our Pro's forums, are restricted to only Pro members that have been vetted by the AOPC can post advise, questions or commentary in a thread created by someone else. You need to...
  48. Replies
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    The equalizer tube on txv is installed correctly

    The equalizer tube on txv is installed correctly
  49. Replies
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    I went back and the guy left it on all day.comp....

    I went back and the guy left it on all day.comp. off on overload. Very hot. The standing press. Was 150 low and 265 hi. Pressure never equalized. I stayed for 45 min. Has spp6. Condenser tcgd36s41s3a...
  50. Replies
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    An over charge doesnt make the suction gauge...

    An over charge doesnt make the suction gauge plumit and high side blast to 550 at the same time
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