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i need to now the location the baterry charge on 17kw generac generator
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Customer questions and answers for
Generac Power Systems 20kW Whole House Switch

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

Question

Which oil should I use for year-round service in Chicago?

I have a Guardian Series 20 kW. I am coming up on 8 hours total run time so I am getting ready to change the oil for the first time. I am a little confused by the Owners Manual that states I should use 10W-30 for operation between -10°F and +40°F, and SAE-30 for operation above 40°F. I live in the Chicago area, so it rarely, if ever, goes below -10°F, so 5W-30 does not seem to be the best choice. I am hoping i don't have to change the oil twice per year even if the generator has only been exercised. Which oil should I use for year-round operation in Chicago?
State: IL - Illinois
Age: 55-64
This product will backup: Entire Home
 
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asked 1 year ago
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Gary
Chicago
on 20kW Whole House Switch
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answer 1
The chart that is shown below should provide guidelines for recommended oil. Please select the oil based on the coldest temperature that will be experienced throughout the year. The oil utilized for a cold temperature will be acceptable for use at warmer temperatures, but oil designated for warmer temperatures are not acceptable for use in colder temperatures. This is why a synthetic 5W-30 is the recommended oil for places with significant temperature changes, as it covers all temperature ranges.
For our automatic standby generators, if you expect the temperature to drop below freezing, we recommend utilizing a 5W-30 Synthetic oil, which can be used year round. We also recommend using a cold weather kit, which includes a battery warmer and a crankcase heater. Using the correct oil and cold weather kit will allow the generator to start and run in below freezing temperatures. There are no other heaters or accessories that would be required for cold weather starting, provided the cold weather kit is properly installed.
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answer 2
Gary,

This question will get you a wide range of different answers.

I have researched this question myself some time, and I have concluded that the best solution for me is to use the synthetic oil maintenance kit offered by Generac ( http://shop.generac.com/p/synthetic-kit-for-20kw-generac-generator ).

This comes with 2 quartz of fully synthetic 5w-30 oil. I figure that if Generac recommends this for wide temperatures fluctuations ( that on the low end go below freezing), then it is good enough for me. You may want to look into the heater kit if you routinely approach temps significantly below freezing.

Good luck,

David
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year ago
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Pinky
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Question

I bought the 20kw with the 200 amp ATS but I have a 225 amp Main Breaker panel is this a problem?

State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
asked 1 year ago
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DG
Hulmeville,PA
on 20kW Whole House Switch
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The 20kW automatic standby generator is compatible with the 200 amp Nexus Smart Switch, but may not be the appropriate switch depending on your particular installation. If the transfer switch will be utilized as the service disconnect, the transfer switch needs to meet or exceed your incoming utility service. We recommend contacting your local inspector for restrictions or sizing requirements if using the transfer switch as your service disconnect. In the event that the transfer switch will be used to power a subpanel, the transfer switch must meet or exceed the rating of the subpanel. The transfer switch rating should never be less than the amperage rating that is being fed through the switch. We recommend contacting a Generac certified dealer for sizing and compatibility assistance. To locate a certified dealer, search your postal code here: http://www.generac.com/Service/Deal....
answered 1 year ago
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Question

During weekly exercise engine shuts down at sets an undervoltage code. What is the cause and solution?

State: TX - Texas
Age: 45-54
This product will backup: Entire Home
asked 1 year ago
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Catfish
Amarillo
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A unit will show an alarm of “undervoltage” if the generator voltage falls below 60% of nominal for more than five (5) seconds, and the unit will then shut down. Essentially, the generator control panel is seeing that the unit is not putting out the correct voltage, and shuts down to protect your appliances. If you are experiencing an undervoltage alarm, we would recommend you contact your local certified servicing dealer. To find a certified servicing dealer in your area, search your postal code here: http://www.generac.com/Service/Deal....
answered 1 year ago
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Question

How noisey is Gaurdian Series 20KW. I am trying to decide how close/far it need to be placed from my home?

State: NY - New York
Age: 55-64
This product will backup: Entire Home
asked 1 year ago
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Mark S
Somers
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answer 1
Mark,

It is about as loud as a muffled lawn mower. The sound is very tolerable, but you will know that it is operating. I have it about 25' away from the side of my house. I am more concerned about CO than noise. Also, there have been reports of plants not surviving (due to heat) if they are in the direct path of the exhaust. The exhaust is rather forceful, as you would expect from a force aired system.

I would also recommend that you invest in the Nexus remote control (about $300). This is money well spent, it allows you to control all of the major operations (change exercise time/start/history, etc) all from the comfort of your home.

Also, consider swapping out the oil that came with the unit for 5W-30 fully synthetic oil. The oil that comes with is SAE 30 and is not rated below freezing. You can purchase an oil kit (with filter) from Generac.

Enjoy your new generator.

Take care,

David
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year ago
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Pinky
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Question

Engine cranking time?

On the Guardian 20KW I have it installed using natural gas. 1.5 inch black pipe going direct from the gas main...Unit was installed by a quailified company and inspected by the town for electrical and plumbing. I happen to be outside when th eunit was starting up for its weekly test. The engine cranked for about 7-8 seconds before it started. is this normal? How long should it crank before it starts? After it was installed and the contractor shut the main on the transfer box after a shot period the unit went to start and it cranked for about 2 seconds and then started. the unit was warm and had gone through a few start and stops to test before I came home to meet up with the installers...Please reply back with the normal cranking time.

Thank you,
Aaron
State: NJ - New Jersey
Age: 45-54
This product will backup: Entire Home
asked 1 year, 1 month ago
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Aaron
Newfoundland
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answer 1
The amount of time an automatic standby generator will crank varies, as environmental factors, such as temperature, can affect both the generator and the fuel source. We would recommend contacting your gas line installer to ensure that the fuel pressure is correct, and also to ensure there are no leaks in the installed line. Much like with any other engine, once it has started and fuel has been successfully delivered, shutting the unit down and restarting fairly soon after will typically allow a much quicker start.
If the fuel supplied to the unit is adequate and there are no leaks in the line, then we would recommend contacting your local certified service technician. To locate a certified service technician in your area, search your postal code here: http://www.generac.com/Service/Deal.... We recommend contacting your gas line installer first, as ensuring correct fuel pressure is the first step in the troubleshooting process, and if applicable, would fall under improper installation under the warranty statement.
answered 1 year, 1 month ago
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answer 2
Aaron,

Do not put too much confidence in the town inspections. For the most part, they do only a cursory examination of the installation; and they will detect only the grossest of defects.

The only time that I had an "extended" cranking time was the initial start of the unit, despite having "burped" the gas line just before the unit.

Since then it cranks in 1-2 seconds.

It sounds like your extended cranking time maybe due to a gas delivery issue. This would explain why it takes longer to crank when it is cold (when there maybe a delivery issue), as compared to when it has been running and the gas delivery is good.

Also, I would check your gas pressure. How large is your gas meter; I would recommend at least a 400 rated unit. The rating is listed on the gas meter; it is often contained in the model number, ie 290, 400, 725, etc

I would try a couple of cold starts to see if it always takes this long. If it continues with the long crank time I would contact your dealer.

I would recommend that you consider purchasing the Nexus advanced wireless remote. Despite the $300 (approx) price tag, this unit is well worth the money of being able to test/run/transfer/change exercise time/track history all from the comfort of your living room.

Good luck,

David
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year, 1 month ago
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Pinky
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Question

Gas LIne

I would like to connect by generator to my gas service with a flexible metal gas line, would this eliminate the need to use the supply rubber line?
State: NJ - New Jersey
Age: 35-44
This product will backup: Entire Home
asked 1 year, 1 month ago
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cklehr
Millstone
on 20kW Whole House Switch
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answer 1
Your proposed situation of running a flexible gas line (without the supplied rubber line), is exactly how my licensed plumber ran my gas line. The flexible metal gas line is sufficient to serve as a shock absorber.

However, be advised that you do need some rigid metal gas pipe connecting into the generator. I am running about 2' of metal gas pipe, then into some reducers, then into a gas valve, then into the 1.5" flexible metal gas pipe.

I hope this helps.

Take Care,

David
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year, 1 month ago
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Pinky
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answer 2
The actual flexible fuel line supplied with the automatic standby generators does not have to be utilized if it does not meet your local or state code; however, a minimum one (1) foot flexible fuel line must be utilized for proper installation. The flexible fuel line prevents the vibration and movement of the generator from damaging the rigid fuel line, the internal regulator of the unit, and any other connection from the fuel source.
answered 1 year, 1 month ago
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Question

Generac 5875 Initial Oil Level

Does the Generac 5875 come in the box with the required amount of oil, or should oil be added before the initial start up?
State: CT - Connecticut
Age: 35-44
This product will backup: Entire Home
asked 1 year, 1 month ago
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Edward J
Stamford
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answer 1
The 20kW automatic standby generator is shipped from factory with SAE 30 non-synthetic oil. The oil level should be full when shipped, however, it should still be checked prior to initial start up to ensure a proper operating level.
answered 1 year, 1 month ago
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Question

How to reset exercise function after fuse is replaced.

The manual is not clear on the exact steps to reset the exercise function after fuse is replaced. Generac Guardian 20KW.
Thank you
State: NJ - New Jersey
Age: Over 65
This product will backup: Entire Home
asked 1 year, 1 month ago
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Computer guy
Monmouth County
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To reset the current time and date you will navigate the control panel to the Edit Menu, and select the Time/Date option. To reset the exercise time and day, navigate to the Edit Menu and select the Exercise Time option. Please see the attached menu map for assistance.
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answered 1 year, 1 month ago
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Question

Do you have 50 Hertz or 50/60 Hertz of this model 5875, or another model with similar specifications?

Age: 45-54
This product will backup: Entire Home
asked 1 year, 1 month ago
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Khaled
Egypt
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answer 1
The 20kW Guardian Series automatic standby generator, model 5875, is a 120/240V 60 hertz product. Currently Generac does not offer a 20kW unit in a 50hz option. Any product currently offered is displayed on our website, which is updated immediately following any product release. If you are looking for a generator for non-domestic use, we recommend considering our 50 hertz Guardian series generators; information for these units can be located here: http://www.generac.com/Residential/....
answered 1 year, 1 month ago
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GeneracPowerSystems01
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Question

What is the new model number of the new 20KW, and when is it available?

Are there any written materials on this new model? If so, can you email me them?
State: NJ - New Jersey
Age: Over 65
This product will backup: Entire Home
asked 1 year, 1 month ago
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Mark
Wall
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The current Guardian Series 20kW units are a model 5875-1 and 5887-1. The new 20kW Guardian Series units that will be released later this year will feature different model numbers which will be available after the release of the new product. Please continue to monitor our website, as it is updated immediately following product release. Documentation for any new product will also be available on the website immediately following the product release.
answered 1 year, 1 month ago
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GeneracPowerSystems01
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Question

I have a 200 amp service that runs my house and 1.5 horse deep well pump and heat pump. will this unit have any trouble running all this?

What type of transfer switch would you recommend to safely run this? Would it be better to use a smart transfer of one that only powers essential loads?
State: VA - Virginia
Age: 45-54
This product will backup: Entire Home
asked 1 year, 1 month ago
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DBN
Suffolk
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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. 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.
Our automatic standby generators and transfer switches can be set up into multiple configurations, including configurations where multiple transfer switches can be utilized, provided the installation meets all local, state, and national codes. Keep in mind that if you would like to use a load center option with a 20kW, you may want to utilize a sub-panel that contains all of the circuits deemed necessary for use in an outage situation, and protect the sub-panel with a single transfer switch, as our EZ Switches that include a load center option are not designed for use with a 20kW unit. We recommend speaking with your local certified dealer to determine the best generator and transfer switch set up for your application. To locate a certified dealer, search your postal code here: http://www.generac.com/Service/Deal....
answered 1 year, 1 month ago
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GeneracPowerSystems01
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Question

How far from a opening in the home, ie; window or door must the unit be located.

State: NJ - New Jersey
Age: 45-54
This product will backup: Entire Home
asked 1 year, 1 month ago
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Rene
Burlington
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The distance required from the Guardian Series automatic standby generator to any window, vent, door, opening into the home, and trees, plants or shrubs over 12” in height is a minimum of 60”. Please see the attached installation diagram which includes clearance information. 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....
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Question

Are the Guardian Series UL Listed?

State: MI - Michigan
Age: 45-54
asked 1 year, 1 month ago
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Sal
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The Guardian Series generators are UL Listed. The UL Listed logo can be found on the spec sheet for each unit by selecting the size generator on the left of the page here: http://www.generac.com/Residential/....
answered 1 year, 1 month ago
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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, 6 months ago
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blackjake
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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, 1 month ago
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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, 6 months ago
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Question

what is required clearance from housejjk

State: NY - New York
Age: 55-64
This product will backup: Other
asked 1 year, 1 month ago
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jjk
long island
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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. Please see the attached installation diagram which includes clearance information. 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.... We recommend contacting your local inspector, as state and local codes may vary, and will supersede manufacturer recommendations for installation near a structure.
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Question

confirmation of a weekly self test for a 20kw generator

i installed a 20kw 2 months ago and understand that there will be a weekly 12 minute self test i have never heard the generator go on. I do
I do have a green light but how can I confirm that the self test is being performed?
State: CT - Connecticut
Age: 45-54
This product will backup: Entire Home
asked 1 year, 1 month ago
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Marc
Greenwich,
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An automatic standby generator, when set to the AUTO mode, will exercise once a week for 12 minutes. To determine that the unit has performed this test, you will navigate the control panel to the History Menu, and select the Run Log option. This will show the last 50 run events, and will display the date at time as well as a brief description of the event. Please see the attached menu map for assistance.
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Question

What is the average fuel (LP gas) consumption of the 20 KW unit during weekly test?

I have just had a Guardian 20 KW unit installed at my home to provide emergency backup power.
State: MD - Maryland
Age: Over 65
This product will backup: Entire Home
asked 1 year, 1 month ago
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Joe
Walkersville
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All of our automatic standby generators have fuel consumption information for full and half load. It is difficult to determine fuel consumption for other loads as environmental and operational factors may affect the fuel consumption.
The volume and pressure required for the 20kW unit operating at full load utilizing natural gas is 294,000 BTU/hr with 5-7” water column, and while utilizing liquid propane is 267,120 BTU/hr with 10-12” of water column. The unit operating at half load while utilizing natural gas will need 206,000 BTU/hr, and while utilizing liquid propane will need 173,880 BTU/hr. The fuel consumption will continue to decrease as the load decreases.
If there are times during an outage where running the unit is not necessary, it can be shut down to conserve fuel by following the instructions in the owner’s manual under the section titled “Checking Engine Oil Level.” To locate a copy of the owner’s manual, search the model or serial number for the unit here: http://www.generac.com/Service/Manu....
answered 1 year, 1 month ago
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Question

Generac; 20Kw; Natural Gas fuel

Lots of publicity on potential EMP solar flare storms.
Publicity addrsses power service, etc.
EMP impact to a Home Generac Generator?
State: TX - Texas
Age: Over 65
This product will backup: Entire Home
asked 1 year, 1 month ago
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Tom
Mansfield
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We are unable to state if the unit will survive an EMP burst as we do not test the units for the affects of EMP’s.
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Question

Can the Guardian 5875 be easily mounted to a truck or trailer?

State: TX - Texas
Age: 35-44
This product will backup: Other
asked 1 year, 1 month ago
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FullerATX
Austin
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The Guardian Series, and other automatic standby generators, are to be mounted to a stationary location only. They are not designed to be mounted to a mobile platform such as a truck or trailer. Mounting to a mobile location will void warranty, and may cause damage to the unit during continual transport. In the event a mobile generator is required, please consider our Mobile Power series, which can be found here: http://www.generac.com/Industrial/I....
answered 1 year, 1 month ago
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Question

use of menu-hours used

I read manual. How do you tell how many hours used. Manual not clear on exactly how to access menu to do different functions
I would like step by step use of menu. Manual is too general for me.
State: NJ - New Jersey
Age: Over 65
This product will backup: Entire Home
asked 1 year, 1 month ago
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West Long Branch
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The 20kW Guardian Series automatic standby generator has an hour meter that can be viewed on the generator’s control panel. To determine the hours of run time on the unit, you will navigate the control panel to the Status Menu, select the Display option, and choose Engine Hours. This will show the total run time of the engine in hours. Please see the attached menu map for assistance. The menu map is also located in the owner’s manual for the unit. To locate a copy of the owner’s manual, search the model or serial number for your unit here: http://www.generac.com/Service/Manu....
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