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Most Recent Questions
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problem with battery
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Will the snap-on fascia fit on a 20kw generator?
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Are there specific lift points and what is the best way to attach to them?
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Are these units rodent proof?
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Can the 22kw whole house Gaurdian with the transfer switch model #6551 be used if my electrical service is 400 amp?
Questions with Most Recent Answers
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Are there specific lift points and what is the best way to attach to them?
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Will the snap-on fascia fit on a 20kw generator?
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Are these units rodent proof?
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Can the 22kw whole house Gaurdian with the transfer switch model #6551 be used if my electrical service is 400 amp?
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What is the typical life of the battery used to start a 20k generator. Live on ms gulf coast with hot tempt urea and have had it for 4 years

Customer questions and answers for
Generac Power Systems 20kW-6730

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Customer questions and answers for Generac Power Systems 20kW-6730

Question

First Oil Change

The oil should be changed "after the first 8 hours" but what if the first time it runs is during a hurricane and that will be way more than 8 hours??
State: TX - Texas
Age: 45-54
This product will backup: Entire Home
asked 2 years, 7 months ago
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by
Molly
on 20kW-6730
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answer 1
It is recommended to change your oil as close to the 8 hour mark as possible, as the oil included with the unit is a break in oil. The break in oil will assist with proper engine break in, and may contain particles left from the manufacturing process, which should be removed from the system as soon as possible. If you are in an area that experiences frequent extended power outages due to weather events, we recommend having a maintenance kit on hand in the event that an outage occurs and you approach the next oil change interval. Maintenance kits are available either online by visiting our home page at www.generac.com and choosing the “Buy Accessories” link, or through your local certified dealer. To locate a certified dealer in your area, search your postal code here: http://www.generac.com/Service/Deal....
answered 2 years, 7 months ago
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by
GeneracPowerSystems01
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Question

How much does installation cost?

State: FL - Florida
Age: 45-54
This product will backup: Entire Home
asked 3 years, 6 months ago
Customer avatar
by
Chuck
Fort Lauderdale
on 20kW-6730
+1point
9out of 17found this question helpful.
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6 answers
Answers
answer 1
For a 20kw with 20' of gas and a max of 20' to your panel.....approx. $7 - 8K . This is in Houston, Tx. If you sub plumbing and elec. out...and pull your own permit you can save some $.
State: TX - Texas
Age: Over 65
answered 11 months ago
Customer avatar
by
pete3
Houston
0points
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answer 2
In the neighborhood of $10,000 +\- $1,000 depending on your specific home/layout. Great piece of mind for the next storm!
State: FL - Florida
Age: 55-64
answered 1 year, 2 months ago
Customer avatar
by
Stevie Ray
Pensacola
+1point
1out of 1found this answer helpful.
answer 3
I live in NJ and it ended up costing about $10,500 total including the price of the generator/transfer switch ($4500 through amazon). I poured concrete slab $30, Permits were $268, Electrician was $2650, Plumber $1500, and PSEG $1400 for new gas meter because my old one wouldn't supply enough fuel for all appliance and generator. I assume the price could vary significantly based on location of generator relative to utilities, materials, trenching, and any applicable utility upgrades needed such as meter or new gas service lines.
State: NJ - New Jersey
Age: 25-34
This product will backup: Entire Home
answered 1 year, 6 months ago
Customer avatar
by
philsnj
NJ
+4points
4out of 4found this answer helpful.
answer 4
This is a difficult question to answer but we get it all the time. The equipment itself is a standard price. Installation is sometimes very simple depending on the location of the generator. We found that using the load centers can save customers a lot of money for time and materials for the electrical install. If the unit is propane, many times the propane company will install the piping for a lower price in order to gain you as a customer to buy fuel from. There are many variables with every installation. We usually can give customers a range on what it will cost based on previous installs. Best thing to do is call and have us come out to give you a more accurate price on the entire job. We offer turn key installation and back it up with certified tech's to handle any service/warranty work. We always have someone ready to answer your call and answer any questions you may have. - John - Bay State Generator
State: MA - Massachusetts
Age: 35-44
This product will backup: Entire Home
 
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answered 2 years, 10 months ago
Customer avatar
by
BayStateGenerator
Boston, MA
-16points
1out of 18found this answer helpful.
answer 5
My cost of installation by a professional Generac dealer was roughly equivalent to the cost of the generator. Contact a local Generac dealer for a quote.
State: IL - Illinois
Age: 45-54
This product will backup: Entire Home
answered 3 years ago
Customer avatar
by
hokie21
Hawthorn Woods
+10points
11out of 12found this answer helpful.
answer 6
Installation really varies, due to the specific needs of every customer, as well as local building codes and requirements. We recommend contacting a local Generac dealer to find out the particular cost of an installation at your home. Many dealers will not charge for a site visit to discuss your needs and provide you with an estimate. To find one near you, please visit http://www.generac.com/Service/Deal...
answered 3 years, 6 months ago
Customer avatar
by
GeneracPowerSystems
-5points
2out of 9found this answer helpful.
Question

Guardian model 6244 transfer switch load shedding

Let's say I have two A/C units (call them A and B, in that priority) and the Generac gets overloaded...do both A/C compressors get dropped, or just the B unit first, and the A unit if necessary to get under 18kW (on natural gas)?

If both compressors get dropped, and it adds back the A unit after a few minutes, will it always automatically add back the B unit, or will it only add the B unit if it knows (does it store the startup amp data?) that it can handle it?

I want to avoid a scenario where it adds back both units and can't actually handle everything (including the startup needs for one at a time) and drops them both right away (rather than just the B unit), so that I basically would never get cooling.
State: CT - Connecticut
Age: 45-54
This product will backup: Other
asked 1 year, 11 months ago
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by
sysdawg
on 20kW-6730
+3points
3out of 3found this question helpful.
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5 answers
Answers
answer 1
Take a look at GenMax load shedding controller.

The load shedding is based on a priority order set of loads with user preset current inputs, i.e. you enter the current (ex. 17 amperes) of the loads and the system only turns the loads on if there is available current. If not, it waits until there is available current.

If an overload occurs then it sheds loads in reverse priority order until satisfied. If it cannot satisfy the overload fast enough by shedding one-by-one, it drops all the loads to save the generator.
State: NJ - New Jersey
Age: 45-54
answered 10 months ago
Customer avatar
by
gmax
Manalapan
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answer 2
The 20kW automatic standby, when paired with a Nexus Smart Switch transfer switch, will have load shedding capabilities. The Nexus Smart Switch has a load shed module that will handle up to six larger loads with the use of the pre-designated contacts, two of which are designated for air conditioner units. The (2) air conditioner contacts will be connected via the 24v low voltage thermostat wires for your air conditioner. These (2) contacts automatically come ready to use in the switch. If additional load management/shedding is required, we offer load management modules as individual accessories. Up to 4 load management modules can be used with each switch to monitor and shed additional large motor loads like your hot water heater, well pump, etc.

When the generator starts up, these 6 non-priority loads will remain off for 5 minutes. After 5 minutes, these non-priority loads will stagger start based on priority to ensure the most efficient generator use. First AC contact 1 and DLM Priority 1, thirty seconds later it will start AC2 and P2, then P3, then P4. This eliminates the huge surge of these large motors all at the same time, which allows a smaller generator to power more by running more efficiently.

The load shedding module will monitor the generator while it is operating to ensure it is not overloaded. If the generator becomes overloaded, (if the engine frequency drops) the load shed module will shed all of the connected loads, reducing the demand on the generator. The load shed module will then begin a five minute timer, after which, each load will be brought on in priority order. Typically via 30 second stagger start. Each time the generator becomes overloaded, the load shed module will intervene and shed all of the connected loads to prevent the unit from shutting down.
answered 1 year, 11 months ago
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GeneracPowerSystems01
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1out of 1found this answer helpful.
answer 3
Thanks for the input, David/Pinky. What you quoted refers to the RTS switch...I'm not so sure that the 6244 uses that switch, and if doesn't, I'm hoping it doesn't work the same way. If the 6244's switch sheds both A and B in the event of an overload (rather than B first, and A only if necessary) the load-shedding isn't really a worthwhile feature (in my situation) and maybe I wouldn't hook up condenser B to the generator at all (I could hook up the furnace fan but not the condenser, so that unit would produce heat but not a/c).

Hopefully Generac can shed some light here.
answered 1 year, 11 months ago
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by
sysdawg
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answer 4
Thanks for the input, David/Pinky. What you quoted refers to the RTS switch...I'm not so sure that the 6244 uses that switch, and if doesn't, I'm hoping it doesn't work the same way. If the 6244's switch knocks both A and B out in the event of an overload (rather than B first, and A only if necessary) the load-shedding isn't really a worthwhile feature for me and maybe I wouldn't hook up condenser B to the generator at all.

Hopefully Generac can shed some light here. Also, I'm wondering if in an overload ONLY A, B, etc are shed or is EVERYTHING shed (like my lights).
answered 1 year, 11 months ago
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sysdawg
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answer 5
The below information has been gleamed from Appendix C, page 20 of the Generac Installation manual and from page 2 and 3 of the RTS Installation Manual.

Air #A and Contractor 1 are handled as a Priority 1 load.
Air #B and Contractor 2 are handled as a Priority 2 load.
Contractor 3 is handled as a Priority 3 load.
Contractor 4 is handled as a Priority 4 load.

When an overload is detected all loads are shed.

After 5 minutes Priority 1 load is re-established (or AC #A).

If no additional overload is detected within 30 seconds then Priority 2 load is re-established (AC #B).

If after another 30 seconds no overload is detected Priority Load #3 is re-established.

Again after 30 seconds in no overload is detected Priority 4 is re-established.

Please be aware that if an overload condition is detected at any point after any of the loads are re-established all loads will be shed and the 5 minute timer starts again, and the entire load re-established process begins again.

So yes, under the scenario that you propose, it is possible to get caught on a load shed/load re-establishment cycle. A couple of ideas; do not use Contractor 1 or Contractor 2 so you do not further tax those Priority Loads.

If you are home, turn off AC #B so that it will not trip an overload condition.

But I can find no other documented way for the LSM (Load Shedding Module) to "know" that it will overload by adding AC B and therefore decide not to add it.

I will be interested to hear what Generac says.

Good Luck

David
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year, 11 months ago
Customer avatar
by
Pinky
+2points
2out of 2found this answer helpful.
Question

How often should you run a loss of power simulation if your utility company doesn't have a power failure over a long time period?

I understand that the generator will run its weekly 12 minute engine tests if set up to do so, but this only tests the engine... the electrical generating capacity and the automatic transfer switch will not be tested

If I don't experience a utility power outage for a long period of time, should I run a loss of power "simulation" by tripping the Generac 200 amp breaker on the ATS to test both the electrical portion of the generator and the Automatic Transfer Switch mechanism?

If yes, how often would you recommend running this test ?
State: TN - Tennessee
Age: 45-54
This product will backup: Entire Home
asked 2 years, 5 months ago
Customer avatar
by
Diana & Lonnie
Maryville, TN
on 20kW-6730
+1point
1out of 1found this question helpful.
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4 answers
Answers
answer 1
Doesn't look like anyone answered the question of how often to load test the Generac units.

Working in an industry where we perform maintenance on backup generators all the time, we schedule these types of tests based on how critical the load is. In my house, I'm testing my 20KW unit once per quarter. We have several children and can't afford for the unit to not work when we need it.

I don't think there is a hard and fast answer to the question. The city building inspector came by to look over the finished install and he recommended load testing it once per month. There's something to be said for reliability of these units, and I feel like Generac has a good product so once per month seemed more than necessary. But if that puts your mind at ease, it's a simple test to perform.

I know it's an old question, but wanted to post an answer in case anyone was still looking for one.
State: TX - Texas
Age: 35-44
answered 3 months, 1 week ago
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by
usnleonard
East Texas
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answer 2
Like yourself, I want to be able to disaster test the generator.

After speaking with my professional installer, I determined that the best way for me to simulate a loss of utility power was to kill the utility power by opening the 200 amp breaker at the top of the Transfer Switch.

By opening the breaker I interrupt the utility power to my house,

As soon of the utility power is interrupted the generator will start. It will take about 30 seconds for the generator to come up to speed. At this point will will hear a chunking sound from the transfer switch as the internal power relay is thrown.

After this sound your house power will be running from the generator.

I would test for at least 15 minutes (to properly exercise the generator). To complete the test, close the 200 amp breaker in the transfer switch to simulate the return of utility power. The generator will run for a few minutes after utility power has been returned and then the generator will turn off.

You have then successfully battle tested the generator.
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 2 years, 3 months ago
Customer avatar
by
Pinky
+6points
6out of 6found this answer helpful.
answer 3
The 20kW automatic standby generator is designed to test itself weekly for 12 minutes when installed properly; this exercises the engine and produces electrical output. During the exercise time, you will not see a transfer of power, but the unit is still producing electricity. If you would like to simulate a power outage situation, you will want to contact your installing electrician, as they will be able to provide you safe instructions on how to simulate an outage. Another way to test the system is with our Advanced Wireless Remote Monitor, which will allow you to run the generator and transfer function while you still have utility present.
answered 2 years, 5 months ago
Customer avatar
by
GeneracPowerSystems01
-1point
2out of 5found this answer helpful.
answer 4
I have purchased the remote monitor display..Lowes for $308.00. I do a once a month start and transfer for 30 mins from the comfort of my family room ..I would say this is sufficient..But the Generac folks will be more knowledgeable on this subject..hope this helps..
State: NJ - New Jersey
Age: 45-54
This product will backup: Entire Home
answered 2 years, 5 months ago
Customer avatar
by
stevek
Galloway
-2points
1out of 4found this answer helpful.
Question

Can I Mount a 20kw to Concrete?

I want to mount the 20kw to a concrete pad.
Is this possible?
How do you mount it to the pad?
Will the vibration hurt anything?

Thanks Scott
State: OH - Ohio
Age: 25-34
This product will backup: Entire Home
asked 3 years, 9 months ago
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by
Scott
Commercial Point
on 20kW-6730
-4points
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3 answers
Answers
answer 1
Scott, our installer poured a concrete pad and bolted our 20Kw Guardian to it. We just had a five-day outage, and cannot say enough good about this unit. It seamlessly kicked in, and just as seamlessly shut off when power was restored. It's much quieter than our old unit too. We're on a well, and our unit is hooked up to our LP tank, underground. No worries.
State: NH - New Hampshire
This product will backup: Entire Home
answered 3 years, 6 months ago
Customer avatar
by
Grins
0points
3out of 6found this answer helpful.
answer 2
The previous 'answer' states the info about mounting too concrete is located in the Owner's Manual. I have Owner's Manual Rev A (06/01/11). Read the book from cover too cover and the only thing specified about concrete base slab is:

Reference page 11 Para 1.12.1

Special attention should be given to the concrete base slab which should exceed the length and width of the generator by a minimum of six (6) inches (0.152 meters) on all sides.
State: MD - Maryland
This product will backup: Entire Home
answered 3 years, 8 months ago
Customer avatar
by
platoonDaddy
Home
-4points
3out of 10found this answer helpful.
answer 3
Yes, it is possible to mount all automatic standby generators to a concrete pad. This is commonly done in areas where code requires a concrete pad. The generator can either be mounted directly to a concrete pad after the composite pad is removed or with the composite pad in place, as well. There are 4 mounting holes that are inside the generator for this purpose This information can be located in the owner’s manual.

For additional assistance please find an authorized Generac dealer by using our dealer locator at http://www.generac.com/Service/Deal...
State: WI - Wisconsin
answered 3 years, 9 months ago
Customer avatar
by
Generac
Waukesha
0points
5out of 10found this answer helpful.
Question

Why isn't there any way to remotely start and stop the generator?

Why isn't there any way to remotely start and stop the generator?
State: NJ - New Jersey
Age: 35-44
This product will backup: Entire Home
asked 2 years ago
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by
DanTran
Newfield
on 20kW-6730
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2 answers
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answer 1
Dan

Generac does sell a a Nexus Advanced Wireless Remote (approx $300). This allows you to remotely control:
1. The exercise day/time
2. Test the generator in an "off-line" mode.
3. Test the generator/switch on an on-line mode. This will start the generator and in 30 seconds activate the transfer switch and you home is now running on the generator.

I had the Nexus unit installed when I purchased the generator and I highly recommend it.

The unit does come with the transmitter device that needs to be connected to the generator; not difficult as the connectors are present, but it does require some minor disassembly of the control panel. I had my installer to the work.

Good Luck,

David
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year, 11 months ago
Customer avatar
by
Pinky
0points
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answer 2
While remote monitors are available that will allow you to monitor your generator's status from indoors, it is not possible at this time to remotely start and stop your generator during a power outage, for safety and performance reasons. You can manually start and stop the unit, but you must interact with the control panel on the generator itself as well as the transfer switch to do this. Please follow the procedure in your owner’s manual to perform this function safely. To locate a copy of the owner’ manual, search the model or serial number for the unit here: http://www.generac.com/Service/Deal....
answered 2 years ago
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GeneracPowerSystems01
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Question

Can the generator be installed directly on the ground ?

State: NY - New York
Age: Over 65
This product will backup: Entire Home
asked 1 year, 11 months ago
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RR
East Hampton
on 20kW-6730
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answer 1
RR,

I do not recommend mounting the generator on an unprepared surface for several reasons:

1. The unit vibrates when it runs so you do do not want the ground to "settle" underneath the generator.

2. Most importantly you want the generator well above any water run-off or local flooding level. In my location I have it elevated on a 8" bed of stones with a 4" concrete pad poured on top of my rock base. Such a configuration allows water to run underneath the generator; and not build up against the base. Further I wanted to make sure that the generator was elevated well above local flooding levels.

I hope this helps.

Take Care,

David
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year, 11 months ago
Customer avatar
by
Pinky
Fort Washington
0points
0out of 0found this answer helpful.
answer 2
Our automatic standby generators will require either a bed of pea gravel or a concrete pad below the unit. The composite mounting pad is a part of the unit, and this mounting pad will be in direct contact with either the gravel or concrete. For installation information, you can locate a copy of the manual and install guide online at http://www.generac.com/Service/Manu... by searching the model number for your unit.
answered 1 year, 11 months ago
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by
GeneracPowerSystems01
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Question

6244 manual?

I tried entering 6244 here: http://www.generac.com/Service/ManualSearch/
and didn't turn up anything.

Please help. Thanks.
State: CT - Connecticut
Age: 45-54
This product will backup: Entire Home
asked 1 year, 11 months ago
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by
sysdawg
on 20kW-6730
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Answers
answer 1
When searching for an owner’s manual online, ensure that the full seven (7) digit model number, or full serial number, is utilized. Searching “6244” will not yield results, as it is a partial model number. To locate the generator’s model or serial number, please reference the Locate Your Generator Serial Number document here: http://www.generac.com/genMedia/Pro....
answered 1 year, 11 months ago
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GeneracPowerSystems01
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answer 2
CT,

Have you tried entering the serial number? Originally the only way you could get the manuals from that location was to enter the serial number from the generator in question.

Good Luck,

David
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year, 11 months ago
Customer avatar
by
Pinky
0points
0out of 0found this answer helpful.
Question

Minimum distance from left side of 6244 to wooden garden shed

1) The building inspector in my village says he will accept whatever is the manufacturer's recommendation. You have generally said it should be 3 feet and employed a diagram that shows 3 feet clearance on each side and the front and 18 inches in the back. However, in one response you say it should be 5 feet from a deck. Which is it?
2) Assuming you know the National Electric Code as it pertains to your own machine, what is the minimum distance the NEC requires from the left side to a wooden shed? Several Generac dealers/installers who are electricians or employ them have been here. Some have said 5 feet and others 3 feet. Which is it?
Thank you!
State: NY - New York
Age: Over 65
This product will backup: Entire Home
asked 1 year, 11 months ago
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Neil
Long Island
on 20kW-6730
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answer 1
The current models of the Guardian Series automatic standby generators feature a one hour fire rated enclosure, and are in compliance with NFPA 37 Article 4.1.4 Condition 2 for clearance from combustible construction. This means that the back side of the generator can be installed a minimum of 18” from a surface. The intake and exhaust, which are the short ends of the generator, and the front side of the generator require a minimum clearance of 36” from a wall. However, the distance required from the unit to any window, vent, door, opening into the home, an overhang, and trees, plants or shrubs over 12” in height is a minimum of 60”. Further information on proper installation can be found in the installation guidelines. A copy of the installation guidelines can be located by searching the model or serial number for the generator here: http://www.generac.com/Service/Manu....
Please note that prior models or other series units may not meet these exceptions. Utilizing the unit’s model or serial number to locate the owner’s manual or installation guidelines will ensure that the correct distances are followed.
We recommend contacting your local inspector, as state and local codes may vary, and will supersede manufacturer recommendations for installation near a structure.
answered 1 year, 11 months ago
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GeneracPowerSystems01
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answer 2
Neil,

As you are facing the front of the generator, the left side is the forced air exhaust. It can be quite forceful. Aside from minimum distance requirements you should consider two things:
1) heat from forced air exhaust
2) CO being vented from forced air exhaust.

You want to make sure that there is sufficient room to dissipate both the heat and the CO.

I know that the heat from the forced air exhaust can kill plants/vegetation directly in its path. So there maybe a concern about "cooking" the finish on your deck.

Page 12 of the Installation Guide indicates that the rear of the generator should be at least 18 inches away from the nearest wall, and that the right and left side need at least 3 feet of unobstructed space. Also you need 3 feet of clearance from the front on the unit.

Further, you need 5 feet of clearance in all directions from any opening to the house or shrubs over 1 foot high. The diagram on page 12 shows this 5 foot clearance being measured from the corners of the generator (as if you were drawing an arc).

Good Luck

David
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year, 11 months ago
Customer avatar
by
Pinky
0points
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Question

what is the gas pipe line on the Generac 20kw generator

State: NJ - New Jersey
Age: Over 65
asked 11 months ago
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by
Ovar
on 20kW-6730
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answer 1
The gas meter and gas line should be sized by a independent authorized dealer, based on the volume and pressure required for the generator, as well as the volume and pressure required for existing appliances. We, as the manufacturer, are unable to make these recommendations due to the fact that there are many variables that come into play. The volume and pressure required for the 20kW unit, model number 6244, utilizing natural gas is 308,000 BTU/hr with 3.5-7” of water column, and when utilizing propane is 350,000 BTU/hr with 10-12” of water column. To obtain further specifications or information regarding this unit, please use the product’s model or serial number via the following link: http://www.generac.com/service-supp.... To locate an independent authorized dealer in your local area, please use your postal code for searching purposes here: http://www.generac.com/dealer-locat....
answered 11 months ago
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by
GeneracPowerSystems02
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answer 2
The gas meter and gas line should be sized by a Generac dealer or a certified plumber, based on the volume and pressure required for the generator, as well as the volume and pressure required for existing appliances. We, as the manufacturer, are unable to make these recommendations due to the fact that there are many variables that come into play. The volume and pressure required for the 20kW unit, model number 6244, utilizing natural gas is 308,000 BTU/hr with 3.5-7” of water column, and when utilizing propane is 350,000 BTU/hr with 10-12” of water column. To obtain further specifications or information regarding this unit, please use the product’s model or serial number via the following link: http://www.generac.com/service-supp....
answered 11 months ago
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by
GeneracPowerSystems02
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Question

Re 20K smart switches

I must have the switch located outside. Is the enclosure designed for outside installation and if so what are the requirements?
State: PA - Pennsylvania
Age: Over 65
asked 11 months ago
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roadrunner
Northeast
on 20kW-6730
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answer 1
Generac has switches available for interior use or exterior use. The spec of enclosure regardless of model you want to use is a nema 3 enclosure which is specifically design to withstand outdoor climate conditions. For your info interior enclosures will have a nema 1 rating . I hope this has answered your question.
State: TX - Texas
Age: 35-44
answered 11 months ago
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Ferezco
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answer 2
Generac’s automatic standby generators and associated transfer switches are typically recommended to be installed as close to the fuel source and incoming utility meter as possible. The Smart Switch included with the 20kw Guardian Series automatic standby generator, model number 6244, can be installed outdoors; it features a NEMA 3R enclosure, making it suitable for both indoor and outdoor installations. Your fuel line installer and certified electrician will be able to appropriately size the fuel line and wiring for installation to ensure there are no loss in fuel pressure or voltage drop due to the distances. The unit can also be installed as far away as necessary, provided that the proper wire gauge and fuel pipe size is utilized. Depending on your existing set up and backup power needs, the installing electrician will be able to determine the best location for the transfer switch. Further information on proper installation can be found in the installation guidelines provided with the unit. We recommend discussing the installation with your electrician or installer, as state and local codes may vary, and will supersede manufacturer recommendations for installation. To locate an independent authorized dealer for installation assistance, please use your postal code for searching purposes via the following link: http://www.generac.com/dealer-locat.... If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 11 months ago
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GeneracPowerSystems02
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Question

what is the ammount of fuel used per hr? propane fuel

State: TN - Tennessee
Age: 55-64
asked 10 months ago
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chuck
thorn hill
on 20kW-6730
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answer 1
The 20kw Generator specification's state that @ half load generator will use an average of 1.64 gallons per hour. Generator being used at @ 100 percent load will use an average 2.95 gallons per hour. Keep in mind that many factors can cause these numbers to vary due to different loads. One Example : If a house is poorly insulated generator even though it may not be used at full load may affect the fuel consumption due to A/C inrush current duty cycles are higher than a house that is well insulated . I hope this gives you an idea of what to expect from a 20 kw generator.
State: TX - Texas
Age: 35-44
answered 10 months ago
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Ferezco
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answer 2
When operating at full load on a liquid propane vapor fuel source, Generac’s 20kw Guardian Series automatic standby generator, model number 6244, will require 350,000 btu/hr, and 10-12” of water column. If you are interested in obtaining further specifications regarding this unit, they can be obtained by either contacting us directly at 888-GENERAC (436-3722), or using the model or serial number of the product in question via the following link: http://www.generac.com/service-supp....
answered 10 months ago
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GeneracPowerSystems02
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Question

my generator runs but no power to house whats the problem

State: IL - Illinois
Age: 45-54
asked 10 months ago
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by
Ike
on 20kW-6730
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answer 1
check the breaker on the generator is not tripped or in the OFF position, if the breaker is tripped or OFF the generator will not output power to the house
State: NJ - New Jersey
Age: 45-54
answered 10 months ago
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gmax
Manalapan
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answer 2
Three simple steps
1rst is the transfer switch lever in the emergency position?
2nd is the generator breaker on the side of the housing tripped?
3rd are their any faults being logged on gen display?
If any of these yes correct. If all of the answers are no. Then call 1 888 generac and ask for your nearest dealer. Problem may have to be diagnosed by a certified technician . Which will be the safest and most efficient way to correct issue.
State: TX - Texas
Age: 35-44
answered 10 months ago
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Ferezco
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Question

Can the unit go with you after sale of house?

I'm currently renting, but will be purchasing a house within the next year or two. How easy and non destructive is being able to remove the unit and take it to the next residence?
State: CA - California
Age: 45-54
asked 10 months ago
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JonnieJJ
Camarillo
on 20kW-6730
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answer 1
Best answer is to have it wired up with a generator inlet box . Allowing the customer to have the ability to use a portable and not having to change back any electrical changes that were made previously . Then when you get your house you can purchase an ats and set it up for standby.
State: TX - Texas
Age: 35-44
answered 8 months ago
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Ferezco
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answer 2
While the unit can in fact be removed for transportation, any damage due to uninstallation and/reinstallation would not be covered. Furthermore, the generator’s warranty coverage is applied only to the original installation site. Once removed from that original installation site, the unit’s warranty will be voided. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 10 months ago
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GeneracPowerSystems02
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Question

20kw NG pipe thru-put / distance from NG source

I want to put a Generac 20kw unit 70' from the NG utility source. I have a 1.25 or 1.50 inch supply line and the city NG flow is 275 CFH. I also have a gas range, hot water heater and furnaces. Will I have enough THRU-PUT for the 20kw unit at 70' (feet) ? If not, is there a smaller unit that would work? Thank you.
State: IL - Illinois
Age: 45-54
asked 10 months ago
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Ghram
Chicago
on 20kW-6730
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answer 1
The most economical way would be to install a higher psi primary regulator . And then 2 individual secondary ; one for house and one for generator. Please refer to professional gas plumber to see if your meter has proper office to handle your needs.
State: TX - Texas
Age: 35-44
answered 8 months ago
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Ferezco
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answer 2
Unfortunately, we are unable to size the appropriate unit for your back-up power needs via online correspondence. In order to properly determine the unit that will not only cover your needed power in the event of an utility outage, but also enable you to follow the specifications put in place by local codes, we would recommend working with an independent authorized dealer in your local area. Furthermore, we would recommend working with your local gas company, to ensure that your unit’s fuel source is appropriately configured for optimal use. To locate an independent authorized dealer closest to you, please use your postal code for searching purposes here: http://www.generac.com/dealer-locat....
answered 10 months ago
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GeneracPowerSystems02
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Question

Proper transfer switch

I have two150AMP services to the meter coming into my home. I purchased a 20Kw Generic Generator for home back up. What is the correct transfer switch to use?
State: FL - Florida
Age: 55-64
asked 10 months ago
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by
Al
Home
on 20kW-6730
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answer 1
You can use a 300 amp service entrance installed before both panels. Or use the 2 150 amp switches to match panels before each individual panel ether way will work . Generac offers both. Get a bid to install both ways to see what is more economical .
State: TX - Texas
Age: 35-44
answered 8 months ago
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Ferezco
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answer 2
The automatic transfer switch that should be utilized in conjunction with your automatic standby generator depends upon your home’s configuration, main panel, and back-up power needs. In order to properly determine the specific transfer switch model most applicable for your personal set up and emergency power needs, we would recommend working with an independent authorized dealer in your local area. To locate an independent authorized dealer closest to you, please use your postal code for searching purposes here: http://www.generac.com/dealer-locat....
answered 10 months ago
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GeneracPowerSystems02
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Question

On a 20KW automatic whole house generator, the 14-2 wire used as control and sensing can this wire be solid or strand or it doesn't matter.

State: MD - Maryland
Age: 55-64
asked 9 months ago
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by
DA
Annapolis
on 20kW-6730
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answer 1
Depending on code. Stranded wire typically has a higher ampacity than solid. However, on the sensing circuit, this shouldn't matter that much unless the distance is extreme.
Kirk
State: CO - Colorado
Age: 45-54
answered 9 months ago
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by
kirk
Durango
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answer 2
While stranded wire should be utilized, we would recommend checking with your local inspector, to ensure that this requirement is acceptable within your local codes; local ordinances will always supersede our recommendations as the unit’s manufacturer. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
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GeneracPowerSystems02
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Question

20KW Guardian -- Detect Run and Disable Unnecessary Loads

I have a 20KW Guardian backing up full utility power to our mountain house. Fuel source is a propane tank. One of the loads on the system is a roof snow melt panel. During a power outage, I would like to disable the snow melt so that it doesn't unnecessarily drain the fuel on the generator. I need advice on how to do this with your system. I see two possibilities:
1) Detect a run indication from your system and use a relay to disable the snow melt. To date, I have been unable to locate a dry contact in either the transfer switch or the generator that indicates when the system running.
2) Use the "load shed" terminals in the transfer switch with a relay to disable loads. Unfortunately, from reading the manual, the load shed terminals do not disable loads, only turn them off temporarily when a "overload" occurs.
Can you advise on a good path forward?
Kirk
State: CO - Colorado
Age: 45-54
asked 9 months ago
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kirk
Durango
on 20kW-6730
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answer 1
You can add an AC sensing relay. Hook it up at the lugs of the generator source lugs. Whenever you have generator source input . the relay energizes and can open or close a circuit . Depends on what you need to turn off your load. This will keep you from having to interfere into gen and ats circuitry
Hope this helps
State: TX - Texas
Age: 35-44
answered 8 months ago
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Ferezco
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answer 2
If you are interested in locking out specific loads when the generator is operating, we would recommend considering the use of an Auxiliary Transfer Switch Contact Kit. This product allows the transfer switch installed with the generator to lock out a single large electrical load that you may not need during an utility power outage. Further information on this kit can be located online, by visiting the following link: http://www.generac.com/all-products.... To obtain this kit and have it properly installed, we would recommend working with an independent authorized dealer in your local area. To locate an independent authorized dealer in your local area, please use your postal code for searching purposes via the following link: http://www.generac.com/dealer-locat.... If you have any other comments, questions, or concerns, please contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
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GeneracPowerSystems02
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Question

Stop Generator after extended time

I have a 20KW Guardian that is fueled by a 500gal propane tank. I would like to have the ability to disable the system after a certain run-time has elapsed (e.g. 2 days) to ensure that the generator does not drain the tank. Is there a method to turn the machine off automatically after an extended time?
Kirk
State: CO - Colorado
Age: 45-54
asked 9 months ago
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by
kirk
Durango
on 20kW-6730
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answer 1
An easy way that this can be done is by having your propane company install a level sensor that can give you the ability to monitor fuel level and give you the ability to take action at different settings set at you discretion .for example when it reaches 25 % fuel it can send a message to supplier by email that you will need a fill up... Or you to allow you to take action..
State: TX - Texas
Age: 35-44
answered 8 months ago
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by
Ferezco
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answer 2
Generac brand automatic standby generators will perform as long as the unit is in the AUTO position, and utility power is absent; there is not a way to set up the system to be disabled after a specified period of time. Furthermore, we recommend stopping the unit after every 24 hours of continuous operation, for maintenance-related purposes described in the unit’s owner’s manual. Please note that any damage incurred to the unit when the unit is utilized for a period of time beyond these recommendations, or damage incurred due to a lack of proper maintenance is not covered under the product’s warranty. If you do not want the unit to run after a specified period of time, we would recommend turning the unit off via the unit’s control panel, and starting the unit back up once you would like to receive back-up power once again. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
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GeneracPowerSystems02
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Question

What should be on the digital screen after activation, "Ready to run and hours of protection"?

State: WV - West Virginia
Age: 25-34
asked 9 months ago
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Generac365
Huntington
on 20kW-6730
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answer 1
That is correct. Unit will not work in auto function if unit has not been registered.
State: TX - Texas
Age: 35-44
answered 8 months ago
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Ferezco
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answer 2
When Generac’s 20kw Guardian Series automatic standby generator, model number 6730, has been activated and prepared for operation, the control panel should in fact read, “Ready to Run” with a listing for the hours of protection since activation. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
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GeneracPowerSystems02
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