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Type: Posts; User: Ed Janowiak

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1. Thread: How much oil must reside in a scroll?

by Ed Janowiak
Replies
11
Views
486

How do you know there was 38 oz of oil in the...

How do you know there was 38 oz of oil in the compressor to start with, that number sounds like way too much, Resi compressors oil charge is usually expressed in CC's.
2. Thread: Real quick motor question

by Ed Janowiak
Replies
13
Views
541

^ ohms law stuff. I agree with the guy who...

^ ohms law stuff.

I agree with the guy who pointed out the transformer issue, the system should have never run.

by Ed Janowiak
Replies
29
Views
657

If my economic balance point is well below a temp...

If my economic balance point is well below a temp where I'll get frost on the outdoor coil why would you want to set the heat pump to shut off if defrost cycles are required? That seems to defeat...
4. Thread: Newbie help analyzing system

by Ed Janowiak
Replies
32
Views
1,281

Target SH = [(3 x indoor wb) - 80 - ambient] / 2...

Target SH = [(3 x indoor wb) - 80 - ambient] / 2 (°F)

by Ed Janowiak
Replies
26
Views
1,216

Then what is your next move? 17 degree split...

Then what is your next move?

17 degree split low load low SH the unit is low on capacity, dry bulb split should be way higher. If there is a hint of low airflow problem the split should have been...

by Ed Janowiak
Replies
26
Views
1,216

Or do CFM x TD x .317 = watts output Divide...

Or do
CFM x TD x .317 = watts output

Divide by watts input to calculate COP 😁

by Ed Janowiak
Replies
26
Views
1,216

BTUH/ (TD x 1,08 ) = CFM Amps x volts x 3.412=...

BTUH/ (TD x 1,08 ) = CFM
Amps x volts x 3.412= BTUH

The 1.08 and 3.412 cancel out to 3.16

by Ed Janowiak
Replies
26
Views
1,216

if you question the airflow why not just measure...

if you question the airflow why not just measure it?

Run elec strips at same fan speed as comp runs -
amps x volts / TD x 3.16 = CFM

Quantify and stop guessing :cheers:
9. Thread: Figure it out BTU's needed to heat a room

by Ed Janowiak
Replies
3
Views
341

Why would you need to know what direction the...

Why would you need to know what direction the room faces? The largest heat loss would happen in the dark wouldn't it?

by Ed Janowiak
Replies
4
Views
345

www.eh-cc.org Too bad I didn't see this till...

www.eh-cc.org

Too bad I didn't see this till now, I'm doing a 608 review and test tomorrow in Pleasantville. If all you want to do is test, call the office and you can test on line at your...

by Ed Janowiak
Replies
52
Views
3,867

I think you'll miss the snow :putergreet:

I think you'll miss the snow :putergreet:

by Ed Janowiak
Replies
22
Views
1,145

I believe the 80 / 20 mix with the oil will...

I believe the 80 / 20 mix with the oil will result in zero problems. Flushing to get rid of contaminants is good, flushing to rid the piping of oil is a scam. I like 407C more and more every day.
...

by Ed Janowiak
Replies
15
Views
818

A "tight" shaft on a motor with permanent magnets...

A "tight" shaft on a motor with permanent magnets is normal. Ohm the motor out like any 3 phase motor to see if it's good. A spin test on the shaft with a comparison to a PSC motor is not a a good...
14. Thread: Manual J / D

by Ed Janowiak
Replies
13
Views
724

Cool, that's why I asked :-). Gunslinger, yes...

Cool, that's why I asked :-).

Gunslinger, yes the new version will be out soon.
15. Thread: Manual J / D

by Ed Janowiak
Replies
13
Views
724

Can you clarify what you mean there? Manual S...

Can you clarify what you mean there?

Manual S is not a guess at anything, it's a procedure to select equipment and recommend airflow based on the SHR and BTUH loss provided by Manual J.

by Ed Janowiak
Replies
3
Views
393

thanks for the help fellas, i looked for a while...

thanks for the help fellas, i looked for a while and came up blank on both glad i asked.

by Ed Janowiak
Replies
3
Views
393

AHRI cert #

I'm having a difficult time finding AHRI reference numbers for these combo's, can anyone lend a hand please.

Goodman:
OUTDOOR model SXC180361AC

INDOOR ARUF36C14BB

Goodman:
OUTDOOR...

by Ed Janowiak
Replies
10
Views
712

So you want split hairs about this but ball parking the actual selection is ok, I'm sorry I said I was done before but this was too good not to mention, have a good night.

by Ed Janowiak
Replies
10
Views
712

Highly technical ? I call that doing it correct and not ball parking, LOL, you win I'm done.

by Ed Janowiak
Replies
10
Views
712

Fan speed affecting SHR is covered in Manaul S,...

Fan speed affecting SHR is covered in Manaul S, what you are leaving out is the total capacity will start to drop as latent work disappears. If you can produce application data with the high airlfows...

by Ed Janowiak
Replies
10
Views
712

Show me application data for a 2 ton split unit...

Show me application data for a 2 ton split unit running 600 CFM per ton. I've never seen a resi split over 500 per ton. If this info doesn't exist what might happen theoretically is moot.

I have...

by Ed Janowiak
Replies
10
Views
712

If you install a 2 ton system on a 22k gain with...

If you install a 2 ton system on a 22k gain with a SHR of .98 you just installed a unit that does not have enough capacity to meet the gain.

SHR is sencible gain divided by total gain. With this...
23. Thread: hot water heater hot on top

by Ed Janowiak
Replies
16
Views
1,003

http://i591.photobucket.com/albums/ss352/EdJanowiak/null_zps4d3970c5.jpg
24. Thread: hot water heater hot on top

by Ed Janowiak
Replies
16
Views
1,003

Close all the windows in the house, close all the...

Close all the windows in the house, close all the doors and turn on all the fans in the house (furnace / air handler/ kitchen / fart etc) and see if the water heater is still drafting, my guess is...
25. Thread: Why would a unit specify overcurrent protection?

by Ed Janowiak
Replies
42
Views
1,513

Yes, yes it is. St Louis was the best standard...

Yes, yes it is. St Louis was the best standard air discussion I witnessed.

Didn't know I could subscribe without making a post.
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