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Type: Posts; User: mark7

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    Carrier Water cooled unit

    I have a Carrier Water cooled unit model 50RHRO24SCC30130. It was freezing
    A bit on the bottom of the coil so I checked the suction and head pressure.It is a R-22 unit. The Coil is nice and clean...
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    1,560

    24 volt non-contact tester

    Can anyone tell me if someone makes a 24 volt non-contact volt sensor?I think it would help to troubleshoot quicker if one was available.Thanks for any and all replies.
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    1,390

    Thanks for the input.I really appreciate it.

    Thanks for the input.I really appreciate it.
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    1,390

    Thanks for the input.I realize we will have to...

    Thanks for the input.I realize we will have to have a controller to control the new dampers for a decent mixed air temp.That being said, why wont the cold outside air come into the space thru the...
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    Thanks very much for the reply.I thought that it...

    Thanks very much for the reply.I thought that it may be something similar to that,but that's why I thought I would ask.I wonder if I shut down the fan,would the outside air come(Just to prove that we...
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    fresh air to fan coil unit

    We need to get some fresh outside air to a fan coil unit in the ceiling of a clinic.There is a 14 x 14 duct with no damper of any kind connected to an outside air duct(about 36 x 36) on the roof of...
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    555

    Manitowoc counter nugget machine

    I have a model SN12AT serial# 110653443 manitowoc countertop ice machine. The girls say that every once in a while it spurts out a little ice and water out the chute. Now today over the course of...
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    874

    To Icemeister

    Thanks icemeister.
    I am not clear on something.Is the toal heat of rejection the same figure as the BTU rating of the coil?Or is it figured some other way?Thanks again.
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    cooling water requirements

    I am looking in my old Refrigeration and AirConditioning book(Goodheart/Wilcox) to see what the requirements are for a water cooled refrigeration system.(How much water/ton of refrigeration).We are...
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    wonderlic assesment

    My son is on a list for HVAC apprentice training.The union coordinator said he has to take a wonderlic test.My question is this a general IQ test or is it specific to HVAC work?He has a 2 year...
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    counter top cuber

    I am trying to find a countertop model cuber that would fit in a 18"x 18" spot.
    It has to be a cuber.The Scotsman CS60 undercounter would work,but the manager of the department thinks the bin is a...
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    Can anybody give me any details regarding a...

    Can anybody give me any details regarding a Remcor Model
    SID350W/35S 3701. Serial # 4378.We are not sure of the age of it and I am of the understanding the expected life of these units is about 10...
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    It seems to me that I read or learned somewhere...

    It seems to me that I read or learned somewhere that
    air at 100 degrees has x # of BTU's and the same amount
    of air has 80% of the amount of BTU's at 0 degrees.
    Is this a true statement?Thanks...
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    Thanks for the input,but I guess what I am asking...

    Thanks for the input,but I guess what I am asking is will they work in conjuction with one another?(power vents and the ridge vent)I am not too worried about noise as they will be a fractional...
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    750

    Can any one please tell me what they think about...

    Can any one please tell me what they think about adding power vents in an attic that has a ridge vent?The building
    (a large 3 story 75 unit) is 64 feet wide and over 500 feet long.The attic is...
  16. Thread: training videos

    by mark7
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    551

    I am looking to purchase some training videos.I...

    I am looking to purchase some training videos.I would like some in airconditioning troubleshooting and repair and also refrigeration.Can anyone please suggest any from personal experience?Thanks.
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    I should of mentioned I checked the service...

    I should of mentioned I checked the service valves.They are open.There isnt a expansion valve,it is a fixed orifice.Any other suggestions?
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    I have a problem that I cant figure.The suction...

    I have a problem that I cant figure.The suction line is in a vacuum as soon as the unit starts.I thought it must be low on refrigerant so I leak checked unit.Could not find anything,so I recovered...
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    Thanks for the reply.The reason we are thinking...

    Thanks for the reply.The reason we are thinking of going air cooled is to lower the sewage bills.They are incredibly high.
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    I have a York water cooled unit...

    I have a York water cooled unit Model#C2E0060A25A.
    Serial #NESM161843.We are considering replacing it with an air cooled unit.I have always believed this to be a 5 ton unit,but never researched it...
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    I would like to clean the condensing unit at my...

    I would like to clean the condensing unit at my part-time job location.The condensing units are located inside the parking garage. The solution I looked at for condensor coil cleaning said not to use...
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    Thanks for the replies.You've been helpful.

    Thanks for the replies.You've been helpful.
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    954

    I have a part time job at an apartment...

    I have a part time job at an apartment complex.The other day when I was changing filters on some units,I noticed that the condensate line off the a/c coil didnt have a trap
    and the 3/4" plug off the...
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    After leak checking unit with an electronic tif...

    After leak checking unit with an electronic tif detector and soap,I didnt find a leak.I opened up on the water controller valve and brought head pressure down to 175#.The suction pressure is at 47#...
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    Can someone please help me diagnose a carrier...

    Can someone please help me diagnose a carrier wastewater cooled heatpump.It locks out after running awhile and I dont want to mess it up any.I think someone else has been monkeying around,some of the...
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