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Spence

Spence

Joined on April 16, 2013

Last Post on September 15, 2014

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Puppies and Pencils

@ September 15, 2014 7:13 PM in heat gain

I wonder if Paul found a load program to his liking. I e-mailed him. Didn't hear from him.

Knowing

@ September 11, 2014 11:39 AM in heat gain

Hence, the wall.

Meeces?

@ September 11, 2014 8:32 AM in odor from duct board

The off-gassing usually is not the fiberglass, but the bonding agent, especially if it has been wet. This can cause allergic reactions in some people. If the ducts were poorly installed, it might be a good time to put in a properly installed system.

Manual P

@ September 11, 2014 7:24 AM in heat gain

Can you imagine a person who doesn't have a clue about our industry actually working in it?

You will always have the incredible value of your knowledge, skills, and willingness to learn as a gift to your customers. All they have is a pencil.

Doing it Right

@ September 9, 2014 8:53 PM in heat gain

Without knowing the size of the two cooling loads and the heating load, you can never have the ducts sized properly, because you will not know what blower will deliver the air needed to neutralize the three loads. Without the blower specs, you won't know what pressure will deliver the air required.

Traps

@ September 8, 2014 3:34 PM in Refrigerant line traps and R410a

I don't believe this is an issue with a blanket response. My own comfort level was contacting the makers of several units that were popular in my area for their answers.

Loads

@ September 8, 2014 7:17 AM in heat gain

Look at Wrightsoft. Great program based on ACCA. If they like it, you can't do better!

Remotes

@ September 8, 2014 7:14 AM in Remote Switch

Try www.smarthome. com.

Blue Wire

@ September 6, 2014 1:14 PM in Ownert

If the blue wire is the common leg of the 24 VAC side, you usually don't need common to the thermostat unless you have lights or a digital screen.

Sizing

@ September 5, 2014 8:17 AM in Furnace to small service call

Yes, it certainly does say something about how equipment is sized. Usually over sized.

Warranty

@ September 4, 2014 9:03 PM in HELP: Any A/C condenser coil repair experts near Bergen county NJ???

Remember that your warranty begins when the unit was commissioned and not when it was manufactured or installed.

Dust Up

@ September 4, 2014 7:32 AM in HELP: Any A/C condenser coil repair experts near Bergen county NJ???

Ah, yes. The infamous tail light warranty.

Leaking Coil

@ September 3, 2014 9:24 PM in HELP: Any A/C condenser coil repair experts near Bergen county NJ???

I sure would like to know how it was determined that you're one month out of warranty.

Over 3 Storeys

@ September 3, 2014 9:12 PM in Manual J Heat loss for a 5 story Building

Use ACCA commercial loads.

North Bergen

@ September 3, 2014 7:32 AM in HELP: Any A/C condenser coil repair experts near Bergen county NJ???

Check with Thatcher; JStar on the wall. You'll get something unusual; an honest opinion.

Tyvek

@ September 2, 2014 9:42 PM in Venting Gas Insert + Tyvek?

You will have no issues provided you maintain the factory prescribed clearances to all combustibles. Tyvek is the least of your worries.

Too Thin for Brazing?

@ September 2, 2014 9:29 PM in HELP: Any A/C condenser coil repair experts near Bergen county NJ???

I wonder what they did at the factory, then.

Advice

@ September 2, 2014 2:28 PM in Code or Best Practice for connecting 2-appliances to Chimney Liner

Nice.

Venting

@ September 1, 2014 9:27 AM in Code or Best Practice for connecting 2-appliances to Chimney Liner

Advice on sizing without knowing the common vent height, appliance connector rise, length of connector, and BTUH of appliances; how is this possible?

Testing Opened System

@ August 25, 2014 6:42 PM in AC Question?

R-410A oil is a sponge, if that hints at what you're up against. The sections that were open to the atmosphere will have to be purged with nitrogen, then triple evacuated with more nitro in between. You most likely will never get out all of the moisture; have your factory tech rep recommend an oversized liquid line drier as well.

Since you're most likely able to float a boat with the moisture, try to get your triple evacuation to 300 microns or below. If you can't, here's a guideline: after each evac, change your pump oil. If you can get to 500 microns, for example, and you don't rise over 750 within a minute or two, you're probably at the best you can get under the circumstances.

Please understand this is not without risk. The system has to be hooked up to do this, or you'll be doing 9 evacuations. And the system may not run or live long anyway. If it does run😢 (that darned yellow guy again), keep your eye on that drier!

DO NOT use the stupid vacuum section on your compound gauge! Use a quality micron gauge. Best of luck!

Drain Line

@ August 23, 2014 10:33 AM in condensate drain ?

I wonder why they did not install the secondary.

Drain

@ August 21, 2014 6:19 AM in condensate drain ?

If the blower is upstream from the coil you should have an air relief. If the blower is downstream there should be a trap. The 3/4" minimum condensate line should have a 1/4"/ft. drop toward the drain.

You're holding water. It's not the equipment design, unless the factory missed something we can't see. Something in the installation; coil position perhaps. You're also making lots of water, so I would calculate your air flow to make sure you don't have restrictions that make more water than the drain can handle. The photo makes your could look 20 years old, so the issue was most likely there from the first day.
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