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Customer questions and answers for
Generac Power Systems 20kW Whole House Switch

Customer questions and answers:
438 Questions
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490 Answers
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Customer questions and answers for Generac Power Systems 20kW Whole House Switch

Question

How much does installation cost?

State: FL - Florida
Age: 45-54
This product will backup: Entire Home
asked 2 years, 10 months ago
Customer avatar
by
Chuck
Fort Lauderdale
on 20kW Whole House Switch
+1point
8out of 15found 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 3 months, 2 weeks ago
Customer avatar
by
pete3
Houston
0points
0out of 0found this answer helpful.
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 6 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 10 months ago
Customer avatar
by
philsnj
NJ
+3points
3out of 3found 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, 2 months ago
Customer avatar
by
BayStateGenerator
Boston, MA
-15points
1out of 17found 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 2 years, 4 months ago
Customer avatar
by
hokie21
Hawthorn Woods
+9points
10out of 11found 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 2 years, 10 months ago
Customer avatar
by
GeneracPowerSystems
-4points
2out of 8found 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, 3 months ago
Customer avatar
by
sysdawg
on 20kW Whole House Switch
+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 2 months, 4 weeks ago
Customer avatar
by
gmax
Manalapan
0points
0out of 0found this answer helpful.
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, 3 months ago
Customer avatar
by
GeneracPowerSystems01
+1point
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, 3 months ago
Customer avatar
by
sysdawg
0points
0out of 0found this answer helpful.
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, 3 months ago
Customer avatar
by
sysdawg
0points
0out of 0found this answer helpful.
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, 3 months ago
Customer avatar
by
Pinky
+2points
2out of 2found 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, 1 month ago
Customer avatar
by
Scott
Commercial Point
on 20kW Whole House Switch
-4points
4out of 12found this question helpful.
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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 2 years, 10 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 2 years, 11 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, 1 month ago
Customer avatar
by
Generac
Waukesha
0points
5out of 10found 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 1 year, 9 months ago
Customer avatar
by
Diana & Lonnie
Maryville, TN
on 20kW Whole House Switch
+1point
1out of 1found this question helpful.
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3 answers
Answers
answer 1
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 1 year, 7 months ago
Customer avatar
by
Pinky
+5points
5out of 5found this answer helpful.
answer 2
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 1 year, 9 months ago
Customer avatar
by
GeneracPowerSystems01
-1point
2out of 5found this answer helpful.
answer 3
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 1 year, 9 months ago
Customer avatar
by
stevek
Galloway
-3points
0out of 3found this answer helpful.
Question

gas line

does the generator require a bigger meter installed.
State: MI - Michigan
This product will backup: Entire Home
asked 3 years, 1 month ago
Customer avatar
by
giovanni
on 20kW Whole House Switch
+4points
4out of 4found this question helpful.
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2 answers
Answers
answer 1
If you look closely at the meter you will see a rating for total CFH (Cubic Foot per Hour). The 200 KVa requires 290 CFH. If you have other gas appliances such as gas heat, etc you will need greater than a total of 290 CFH.

In Pennsylvania, PECO provides one of 3 meters, 270 CHF, 425 CHF, and 1000 CHF (this is a commercial meter). PECO upgraded me from a 270 to a 425 CHF meter and no cost.

I have attached a photo from my gas meter.
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
User submitted photo
answered 1 year, 7 months ago
Customer avatar
by
Pinky
+2points
2out of 2found this answer helpful.
answer 2
There are many factors that impact the sizing of the generator and appropriate fuel service. Most residential meters can accommodate 250,000 - 300,000 BTU. Accommodation must be made for additional NG appliances such as a hot water heater, dryer, etc. You might have to upgrade the meter to meet both the generator and other appliance demands.

Reference the fuel consumption on the 20kW spec sheet at http://www.generac.com/SpecSheets/0...
Contact the local utility, and an authorized Generac Dealer located near you for more detailed information.

Use our dealer locator at http://www.generac.com/Service/Deal...
State: WI - Wisconsin
answered 3 years, 1 month ago
Customer avatar
by
Generac
Waukesha
-2points
0out of 2found this answer helpful.
Question

What does a shining yellow LED light mean?

My unit has both the green and yellow LED lights shining. Red light is dark. Service man says he recently changed the oil
State: NJ - New Jersey
Age: Over 65
This product will backup: Entire Home
asked 3 years, 1 month ago
Customer avatar
by
George
Boonton
on 20kW Whole House Switch
+5points
5out of 5found this question helpful.
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2 answers
Answers
answer 1
The yellow LED is a maintenance reminder light. To reset a maintenance reminder, press the Enter key on the control panel. The reminders will be displayed at the following intervals.

“Inspect Battery” 1 Year

“Change Oil & Filter” 200 hours or 2 years, 100 hours or 2 years on 20kW models

“Inspect Air Filter” 220 Hours or 2 years

“Change Air Filter” 200 Hours Or 2 years

“Inspect Spark Plugs” 220 Hours or 2 years

“Change spark Plugs” 400 hours or 10 years
State: WI - Wisconsin
answered 3 years, 1 month ago
Customer avatar
by
Generac
Waukesha
0points
3out of 6found this answer helpful.
answer 2
The yellow light means the unit needs servicing. If someone just serviced it they must of forgot to reset it in the control panel.

Scott
State: MI - Michigan
answered 3 years, 1 month ago
Customer avatar
by
SDSPARK58
South Lyon
+5points
5out of 5found this answer helpful.
Question

notification system

I have a friend that installed one of your generators on his country home and when I say country I mean way out in the country. He is only out there once a month and no one is there in between. He is concered about an outage, no one knowing and the generator running the propain tank dry. I have installed a full security system on the home. Is there anything on the gererator that can sent a signal to an alarm system that notifys when the generator starts and shuts off?
asked 2 years, 11 months ago
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by
lanceww
on 20kW Whole House Switch
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2 answers
Answers
answer 1
There is a contact that the generator pulls to ground to signal the transfer switch to activate. I wired this contact to a relay. The output of this relay I ran to my alarm system. I get a text message and an indication on the alarm keypads when the generator has transferred to backup power. While this isn't exactly the indication you are looking for, it's pretty close. I also wired the generator "trouble" contact closure to the alarm system. With the combination of these two signals to my home alarm system, I'm pretty confident of the state of the generator.
State: IL - Illinois
Age: 45-54
This product will backup: Entire Home
answered 2 years, 4 months ago
Customer avatar
by
hokie21
Hawthorn Woods
+1point
1out of 1found this answer helpful.
answer 2
At present, there is not a way to notify the user when the generator starts and stops. There are, however, two dry contacts that can be connected to an alarm that will trigger in the case of a generator failure.
answered 2 years, 11 months ago
Customer avatar
by
GeneracPowerSystems
0points
1out of 2found this answer helpful.
Question

Does the generator need to be installed a certain distance away from an adjacent structure?

State: CO - Colorado
Age: 35-44
This product will backup: Entire Home
asked 2 years, 6 months ago
Customer avatar
by
c
Boulder
on 20kW Whole House Switch
-6points
2out of 10found this question helpful.
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2 answers
Answers
answer 1
The 20kW automatic standby generator meets NFPA 37 in regards to installation near a structure. Please see the attached diagram for installation distances. We recommend consulting with your local inspector as local codes may vary and will supersede manufacturers recommendations.
User submitted photo
answered 2 years, 6 months ago
Customer avatar
by
GeneracPowerSystems
GeneracPowerSystems
+10points
11out of 12found this answer helpful.
answer 2
The distance would be regulated by your local codes.
State: MA - Massachusetts
Age: 45-54
This product will backup: Furnace
answered 2 years, 6 months ago
Customer avatar
by
NortheastTractor
Norfolk
+7points
7out of 7found this answer helpful.
Question

Placement of 20KW Propane generator

What is the minimum distance to a wooden deck with the 20KW generator - propane fuel. Unit will not be placed under deck.
State: NY - New York
Age: Over 65
This product will backup: Entire Home
asked 2 years, 5 months ago
Customer avatar
by
range_rider
Poughkeepsie, NY
on 20kW Whole House Switch
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2 answers
Answers
answer 1
The 20kW automatic standby generator meets NFPA 37 in regards to installation near a structure. Minimum distance from a combustible surface, such as wood, is 5 feet. Please see the attached diagram for installation distances. We recommend consulting with your local inspector as local codes may vary and will supersede manufacturers recommendations.
User submitted photo
answered 2 years, 5 months ago
Customer avatar
by
GeneracPowerSystems
GeneracPowerSystems
-2points
0out of 2found this answer helpful.
answer 2
The location of the generator and the propane tank(s) must be in accordance with state and local building codes in your area. I would suggest to consult an electrical contractor for proper installation.
State: NJ - New Jersey
Age: Over 65
answered 2 years, 5 months ago
Customer avatar
by
papacheese
Glen Gardner
0points
0out of 0found this answer helpful.
Question

Do you have installation guidelines for areas where high snow accumulation may occur?

Looking for information on installation recomendations where snowfall may reach or exceed the height of the unit. Are there accessories to address this?
State: CT - Connecticut
Age: 45-54
This product will backup: Entire Home
 
Products related to my question
 
asked 2 years, 5 months ago
Customer avatar
by
jualwatt
New Hartford
on 20kW Whole House Switch
-1point
0out of 1found this question helpful.
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answer 1
During times where snowfall is expected, you will want to ensure that snow and/or ice is cleared off of, and away from, the enclosure. There should be no snow piles or large accumulations of snow within three feet of the unit to ensure proper air flow if the unit were needed in an outage. If necessary, due to local codes or in areas with high precipitation, the unit may be installed on a structural steel base to elevate the unit. The base for the unit must be level, and meet all spatial recommendations in the manual, as well as comply with local and national codes.
answered 2 years, 5 months ago
Customer avatar
by
GeneracPowerSystems01
0points
0out of 0found this answer helpful.
answer 2
You really want to keep the area around the unit free of snow as this is an 'air cooled' unit. I see you are from CT but I have the idea this is in the mountians somewhere. Perhaps you could put a snow fence around the unit to limit some of the snow, but you really need to clear around it.
State: MA - Massachusetts
Age: 45-54
This product will backup: Furnace
answered 2 years, 5 months ago
Customer avatar
by
NortheastTractor
Norfolk
+1point
2out of 3found this answer helpful.
Question

WHERE CAN I PURCHASE A REMOTE MONITORING KIT AND HOW MUCH DOES IT COST?

asked 2 years, 3 months ago
Customer avatar
by
BUSTER
on 20kW Whole House Switch
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answer 1
I got mine through Lowes model # 5951.cost $308.00 nice unit. start and stop or start and transfer power from sitting in my family room. monitor everything on the generator easy to install and well worth the money.
State: NJ - New Jersey
Age: 45-54
answered 1 year, 10 months ago
Customer avatar
by
stevek
Galloway
0points
0out of 0found this answer helpful.
answer 2
The wireless remote monitors can be purchased through your local certified dealer. To locate a dealer in your area to assist with pricing and availability, search your postal code here: http://www.generac.com/Service/Deal....
answered 2 years, 3 months ago
Customer avatar
by
GeneracPowerSystems01
0points
0out of 0found this answer helpful.
Question

I am in the process of purchasing a generac 20kw should arrive Aug. 23, 2012

My neighbor and I both have two electrical boxes in our basement. He told me the electrician moved evertything into one box and leaving the heat pump circuits in the otherelectrical box. The electrican told my neighbor it would be easier for connecting the "transfer switch" and assistance with the "whole house conecting". Wanted to know if this true or not.
A second question what if I wanted to connect the heat pump later how would this occur and would we need to upgrade to a larger kw unit?
State: MD - Maryland
Age: 55-64
This product will backup: Entire Home
asked 2 years, 1 month ago
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by
James
Bowie
on 20kW Whole House Switch
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answer 1
The 20kW unit can cover a wide range of household appliances and items, however the exact items it can cover will vary for each application. We are unable to determine if there are other installation options for you or your neighbor, as we are unable to see your existing set up. The 20kW automatic standby generator is rated for a continuous output of 20,000 watts when utilizing propane, with a rated amperage of 83.3 amps at 240 volts. When utilizing natural gas, the unit is rated for a continuous output of 18,000 watts, with a rated amperage of 75 amps at 240 volts. You will want to ensure that all of the items you intend to run will not exceed this rating. We recommend contacting your local certified Generac dealer, or local certified electrician for sizing and installation assistance.
answered 2 years, 1 month ago
Customer avatar
by
GeneracPowerSystems01
0points
0out of 0found this answer helpful.
answer 2
You electrician can tell you the best approach to connect the unit based on amperage draw etc. I suggest you contact your electrician and go over your panel system before the unit arrives. We do not make wiring recomendations they are up to your electrician.
State: MA - Massachusetts
Age: 45-54
This product will backup: Furnace
answered 2 years, 1 month ago
Customer avatar
by
NortheastTractor
Norfolk
0points
0out of 0found this answer helpful.
Question

I have a 20kw Guardian, is there a comparable automotive oil filter I can use on this unit.

State: OH - Ohio
Age: 55-64
This product will backup: Entire Home
asked 1 year, 11 months ago
Customer avatar
by
Jim S.
Blanchester
on 20kW Whole House Switch
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answer 1
You can use any automotive filter that meets Generac's specifications. If Generac says that NOT using a Generac filter will void your warrenty, Generac must provide their filters free of charge. Magnuson–Moss Warranty Act (P.L. 93-637). I will check to see if Generac deletes this post.
answered 1 year, 3 months ago
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MISteve
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answer 2
The recommended oil filter part number will vary depending on the particular model and serial number for your unit. The specifications for your particular model can be found in your owner’s manual under the “Specifications” section. To locate a copy of your owner’s manual online, search your model number here: http://www.generac.com/Service/Manu....
The correct oil filter and other maintenance parts for this unit can be purchased through your local certified dealer. To locate a certified dealer, search your postal code here: http://www.generac.com/Service/Deal.... We do not recommend to cross reference to non-Generac parts, as damage to the unit caused by non-Generac parts will void the unit’s warranty.
answered 1 year, 11 months ago
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GeneracPowerSystems01
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Question

What can I expect the pressure at the gas valve to drop to when the unit starts?

I have 7" of water column at my generator then when it starts to turn over it drops to 5.5" then when it starts up it dips down to 2.5" for a split second then runs at 6.5". Is this typical or is my gas line undersized?
State: MI - Michigan
Age: 35-44
This product will backup: Entire Home
asked 1 year, 11 months ago
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blackjake
on 20kW Whole House Switch
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answer 1
From my gas meter to the generator I am running 1.5" flex pipe. I get a static reading of 6.5 inches of water with the generator off, and it drops to 6.2 with the generator running in test mode.

I have yet to test it under full load conditions.
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year, 6 months ago
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Pinky
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answer 2
For a 20kW automatic standby generator on natural gas it will require 5-7” water column, and when utilizing propane it will require 10-12” water column. The pressure should never drop below 5” water column for natural gas, or 10” water column for propane. There should be no more than a 1” change in water column from the generator being static, to cranking, and to running. Any change larger than 1” water column will indicate an improper fuel supply to the unit.
answered 1 year, 11 months ago
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GeneracPowerSystems01
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Question

There is only one hole for conduit in the rear of the 20kw unit. Can I cut an additional hole in the unit for the second conduit?

State: OH - Ohio
Age: 55-64
This product will backup: Entire Home
asked 1 year, 10 months ago
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Chaz
Coshocton
on 20kW Whole House Switch
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answer 1
Hello Chaz:
Same problem
I wanted to keep the AC and DC wiring seperate from the same conduit and spoke to the electrician that was about to wire the unit up for me and he agreed that they should be kept separate. I let him drill another hole for the DC wiring. I agree there should be another knockout.
State: NJ - New Jersey
Age: 45-54
This product will backup: Entire Home
answered 1 year, 10 months ago
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stevek
Galloway
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answer 2
The 20kW automatic standby unit has only one knockout provided in the enclosure, 1 inch in diameter, as if a pre-wired switch is utilized, all of the necessary wiring will be contained within a single conduit. If a non-wired switch is used, your local codes will dictate if two separate conduits are required, but in the event a second conduit is necessary, a second hole can be made within the unit’s enclosure. If the provided knockout diameter is not large enough to accept your wiring, you can make that hole larger. The reason we do not provide additional knockouts is to prevent entry points for moisture, rodents or insects, and for on units with a metal enclosure, will help prevent rust points as well.
answered 1 year, 10 months ago
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GeneracPowerSystems01
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Question

Is there a way to tell how much power I am consuming (without using the remote - sold separately). I would like to make sure that I do not overload.

The Quietsource 20KW generator is a lifesaver. We just had it installed a few months ago. We got hit with the hurricane last week and our neighborhood has already been without power for almost 5 days. The local utility has said that it could be another 5 days for restoration. I forgot to buy the remote to monitor operation. I wIll be adding that. In the meantime, I would like to know if there is a way to see how much power I am drawing so I do not overload the unit. In other words, is there a way to see it on the screen on the generator unit itself ? We are big fans of Generac and have probably recommended it to 2 dozen people already . Thanks
State: NY - New York
This product will backup: Entire Home
 
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asked 1 year, 10 months ago
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Dan
Westchester
on 20kW Whole House Switch
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answer 1
The unit ATS has load shedding capabilities... your fine my friend..
State: NJ - New Jersey
Age: 45-54
This product will backup: Entire Home
answered 1 year, 9 months ago
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stevek
Galloway
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answer 2
Currently Generac does not offer an option for monitoring the load on the residential or the commercial series generators.
answered 1 year, 10 months ago
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GeneracPowerSystems01
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Question

Oil change on new 20KW unit?

I will get a brand new 20KW the next days. I live in CT and it winter time is approaching, expecting temperatures below 32 degrees for an extended period of time. The unit comes from the factory shipped with the standard oil that does not seem to work well in the winter. However I read that it is recommended to keep the oil for 8 hours to break the engine in. Should I manually run the unit for 8 hours and then change to synthetic 5W-30 for the winter? Or can I change to synthetic 5W30 right away?
State: CT - Connecticut
asked 1 year, 10 months ago
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awolf
Stamford
on 20kW Whole House Switch
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answer 1
Wolf

Baby it's cold outside and you like others want the best for the investment.. let it run on the oil it came shipped with for 10 hrs...engine run time that is... then do a swap with the oil filter and synthetic oil..you can't go wrong..everyone is talking about the same issue that we both have...I know it's alot $ we have invested..Synthetic is the way to go..relax palomine just do it..I'm on the same coast as you.. Baby it's cold outside...
State: NJ - New Jersey
Age: 45-54
This product will backup: Entire Home
answered 1 year, 9 months ago
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stevek
Galloway
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answer 2
The appropriate intervals for oil changes and other maintenance items will be located in the owner’s manual in the Maintenance Schedule. Current production models do not require the 8 hour break in, so if the manual indicates you do not need the 8 hour break in you could change the oil and filter and switch to synthetic 5W-30 right away. If your manual recommends the 8 hours run time prior to the first oil change, we would advise against switching to synthetic until that time is up. The generator can either be allowed to run its exercises to meet the necessary hours, or you can manually run the unit more often than the pre-set 12 minute weekly tests to meet the 8 hour requirement.
answered 1 year, 10 months ago
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GeneracPowerSystems01
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Question

Display reads Battery Low / Yellow LED but battery appears OK when tested

Generac 5875 Display reads low battery warning and yellow LED on. Battery tested good when removed. New battery installed just to be safe. Now this battery also showing low battery warning on the display after just a day.

I reset display by pulling 7.5 amp fuse. Yellow LED goes off and "Ready to Run" appears on display. A day later, it will show low battery warning again and yellow LED on. I have done this reset a couple times with same result. Unit appears OK in "Ready to Run" mode for about 12 hrs, then begins to show low battery warning again.
State: NJ - New Jersey
This product will backup: Entire Home
asked 1 year, 10 months ago
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Ralph
on 20kW Whole House Switch
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answer 1
The 20kW automatic standby generator will monitor the battery to ensure it is capable of starting the engine. If the generator is displaying a Low Battery alarm, this will indicate that the battery will not be able to allow the engine to start. A Low Battery alarm is typically accompanied by a red LED. If the generator is displaying an Inspect Battery warning, it will be accompanied by a yellow LED. To reset the Inspect Battery alarm at the control panel, navigate to the Edit menu, and to the Reset Maintenance option. Once at Reset Maintenance, choose Yes and hit the ENTER key. The maintenance reminder will reappear in 1 year’s time. Please see the attached menu map for assistance.
If the generator is in fact displaying Low Battery, we recommend to remove the battery and have it tested, either on a separate charger or at an automotive supply store. If the battery is determined to be low, or in poor condition, replace the battery. If the battery is determined to be in good condition, we would recommend to contact a local certified servicing technician for service on the generator. To locate a certified servicing technician, search your postal code here: http://www.generac.com/Service/Deal....
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answered 1 year, 10 months ago
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GeneracPowerSystems01
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answer 2
Hello Ralph:

Try this ...Just to let you know the PCB needs to be reset.. At the control panel turn rocker switch to off..Pull the 7.5 amp fuse..disconnect the positive lead off the battery...WAIT 5 to 7 minutes.. Reconnect Battery..Install fuse..Time and Date will need to be reset. ( disconnecting the battery is the key.. ) if you can't reset faults ,alarms using the enter button as stated in the owners manual...Go for a start see what happens.. if no joy.. the PCB may be in question..then call an Authorized Generac Sales/Service Tech Rep....hope this helps..
State: NJ - New Jersey
Age: 45-54
This product will backup: Entire Home
answered 1 year, 10 months ago
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stevek
Galloway
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Question

What is the min distance from the 20KW unit and the RTS switch when mounted outdoors

I am mounting the switch next to the meter on the back of the house - how close can I mount the generator to this RTS switch - can it be right next to it to one side (assuming the generator is proper distance from the structure and the switch is mounted on the structure)
 
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asked 1 year, 10 months ago
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Greg in MD
on 20kW Whole House Switch
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answer 1
The minimum distance the automatic standby generator can be placed from a structure or the transfer switch is 18” from the back side where fuel and wiring connections are made. Please see the attached placement guide for assistance. We recommend speaking to your inspector to verify installation distances, as local and state codes vary.
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answered 1 year, 9 months ago
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GeneracPowerSystems01
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answer 2
Greg;

I assume you mean the ATS...the closer the better to your meter and if you can mount the ATS as close to your 200 amp circuit breaker panel the better..Generator should be on your slab or within 10 ft for conveinece if you can do it .. I have pics if you would like to see how i have mine set up.. this works and let Generac know you can contact me..
State: NJ - New Jersey
Age: 45-54
This product will backup: Entire Home
answered 1 year, 9 months ago
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stevek
Galloway
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Question

What is average cost per hour to run 20kw unit on natural gas?

State: NJ - New Jersey
Age: 35-44
This product will backup: Entire Home
asked 1 year, 9 months ago
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Michael
on 20kW Whole House Switch
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answer 1
23 hrs at a time with a break for an hour.. to check oil level in the unit ...I calculate at the current price for NG. To be $32.00 and change a day..not a bad price for piece of mind .. Wife and kids are happy.. The Utility Company could care less if you have power at their convienyence.... Those crews love the overtime and trust me they take their time to get power restored to your home... So do you really care how much when you have you and your family taken care of??
State: NJ - New Jersey
Age: 45-54
This product will backup: Entire Home
answered 1 year, 9 months ago
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stevek
Galloway
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answer 2
You will want to contact your fuel supplier directly to discuss the cost of operation based on the consumption rates. The volume and pressure required for the 20kW unit at full load utilizing natural gas is 294,000 BTU/hr with 5-7” of water column. When operating at half load, natural gas consumption is 206,000 BTU/hr.
answered 1 year, 9 months ago
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GeneracPowerSystems01
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