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Recent Dehumidifier questions

I want to use my cooling system to reduce humidity in the

I want to use my cooling system to reduce humidity in the house. I have a Trane ser20 system with 2 stage cooling and variable speed blower. I have the prestige IAQ thermostat with red link and the EIM interface. I understand to wire one terminal from U1 to the RH terminal. My question is when it states wire other U1 terminal to low speed fan, do I just wire to terminal G and it will call for low speed fan or do I need to locate the low speed terminal of my fan motor and wire into that? Thanks. Steve

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BillyHvac

Journeyman Service Technician

State Licensed Mechanical Contractor

11,658 satisfied customers
Lennox Air Conditioner Model and Serial Numbers Compressor:

Lennox Air Conditioner Model and Serial NumbersCompressor:Model: XP16-048-230-08Serial Number: 5815D07536Air Handler:Model: CBX32MV-048-230-6-07Serial Number: 51615D07094I like my indoor humidity at around 46%. In the evenings, at night, and in the morning my system will maintain this. However in the afternoon from about noon till 7:pm I cannot get it lower than 48%. I'm located here in Ocala, Florida.

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Airheatman

Heating & Air Conditioning Contractor

6 years college

9,806 satisfied customers
Have A split unit Mitsubishi in a newly constructed room

Have A split unit Mitsubishi in a newly constructed room over the garage. It is hot summertime here in South Carolina with outside temperatures in the low 90s. We are not having any visitors presently so no one is using the room over the garage so we keep the temperature at about 78°.The room felt humid to me and I got a hygrometer which showed the humidity was 73%. I turned the mode on dry and left it that way for about 16 hours overnight. When I got up in the morning the temperature was 66 and the humidity was 54%. I turned the air conditioner back on cool mode and within an hour the humidity was back up to 70% although the temperature remained down for most of the morning. By noon, however I was back where I started with the temperature at 78 and the humidity at 71% in the room over the garage.I have tried reading about the "I feel" mode online but I still do not understand it. Should I be using it to maintain a comfortable atmosphere in that room? If so, how should I handle all the settings?The morning after I ran the dry mode I noted that one point that the room was quite comfortable with the temperature at 73 and the humidity at about 60%. Is there someway I couldset the unit so that it would maintain this comfortable atmosphere?

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

9,878 satisfied customers
I have a LAD504TDL Frigidare dehumidifier. I cleaned the

I have a LAD504TDL Frigidare dehumidifier. I cleaned the coils and the water pan. If I run it without the cover (so that air passes around the front coil rather than through it) the front coil ices up. But with the cover in place, the ice melts and the unit doesn't seem to be collecting any water. The compressor is very hot. The back coil seems to only heat into the very first pass of the copper through the exchanger. Is this consistent with low refrigerant? The Refrigerent is R410A; 7.94oz. Can I add this myself?JA: Did you double-check the thermostat's settings? And what about the filters?Customer: yesJA: What are all the symptoms of the problem (error codes, flashing lights, etc.)?Customer: no codes, no flashing lights. everything seems to be working, but the water is not condensing. the cooling coil is only slightly cool at the very bottom and the back side heat exchanger is only slightly warm up top.JA: What happened just before this problem started? What troubleshooting have you tried?Customer: cleaned the coils, cleaned the water pan. There was dust built up on the coils. The water pan outlet was partially clogged with something like mud. But it was running OK - the fan and the compressor seemed to kick in OK. Just not condensing and outputting waterJA: Anything else you want the HVAC tech to know before I connect you?Customer: no

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

9,878 satisfied customers
I have a heier dehumidifier. It runs but does not get any

I have a heier dehumidifier. It runs but does not get any water in the tank. I've been emptying it twice a day all summer.

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HVAC Guru

Service Technician

Associate Degree

25,572 satisfied customers
Humidity level of 81% inside my home (downstairs in a two

Humidity level of 81% inside my home (downstairs in a two story home). I have two heat pumps and the downstairs feels humid. Almost like living in Houston. I'm here in N.C. and the humidify setting on the control is 42% and the dehumidify is 45%. My crawlspace has 6 mil plastic and automatic vents. This summer has been hot and more humid than normal. It has rained almost every week. How can I decrease the inside humidity level? What settings should I have until this weather has passed on. I live in the piedmont area of N.C.

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HVAC Guru

Service Technician

Associate Degree

25,572 satisfied customers
My 1year and 10 month old Frigidaire dehumidifier failed.

My 1year and 10 month old Frigidaire dehumidifier failed. The fan and compressor are working but the coils don't cool. When i took the back off the unit the compressor measured 205deg F with IR gun . Twice before the unit shut down with an "EC" code which tells you to check line voltage and ambient operating temp between 40F and 95 the room was at 75F and the line voltage at 120. Power plug removal reset the faulty condition but this last time it doesn't produce any cooling to the coils. Coils look clean. Did it lose refrigerant?JA: Did you double-check the thermostat? And what about the unit's filters?Customer: Both checked okJA: Do you plan on doing the work yourself?Customer: i was up to this point checking compressoe resistance and checking cap. but tnow the compressor is running and there is no cooling so not sure I can do this any longer if it involves adding refrigerant or requires pumpdown i dont have this equipmentJA: Anything else we should know to help you best?Customer: It doesnt seem as if there are any authorized repair places near me for this so it look like i will have to buy new even though its only a year and 10 months old. its a pity because it worked well for that time. I was hoping for some other ideas to see if I missed something

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

9,878 satisfied customers
I am trying to install a nest with a trane tam 7 and need to

I am trying to install a nest with a trane tam 7 and need to know where to install the blue H wire? I am in florida, electric heatJA: Did you double-check the thermostat's settings? And what about the filters?Customer: not applicableJA: Do you plan on doing the work yourself?Customer: yesJA: Anything else we should know to help you best?Customer: no thank you

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BillyHvac

Journeyman Service Technician

State Licensed Mechanical Contractor

11,658 satisfied customers
My wet bulb in the house return is 60F, does it mean i have

My wet bulb in the house return is 60F, does it mean i have a low load and low humidity in the house?

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

9,878 satisfied customers
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