Perkins 402C-05 Project Requirements, etc.

[RVC-1]

I purchased a couple of used Perkins 402C-05 2-cylinder diesel engines this fall and should use one to build a small generator for the house.  Is there a typical list of parts builders use to accomplish this posted here somewhere?  My loads I need to consider for this are: 1) air-air heat pump & propane gas forced furnace HVAC system, 2) Grundfos pump in well, 3) two refrigerators and one freezer and house lights as needed.

Please advise.

Thanks,

Rick

[Henry W]

With the stuff listed you will need load management. You cannot run all the items listed at once. Those engines should pull 6.5 kW at full rated rpm's. It all depends on the build. What are you looking to build?

Henry

[Carlb]

how large is that air to air heat pump as it may require quite a bit to get it started.

[Henry W]

To find out how much starting amps a HVAC unit requires:

Find the label on the compressor unit and look for LRA. LRA is the abbreviation for locked rotor amps. For example, a 2.5 ton outdoor unit might have an LRA of 73 amps. To be safe with the LRA number I listed hear I would figure 17,520 watts for the HVAC.

Another thing that is important is:
How many watts is the emergency heating element. My heating element for my air handler is about 7000 watts.

The generator head wattage is where I would not skimp on. Make sure you size it properly for your application. Most of the better higher wattage units will have a good surge rating. For example, 8000 watt gen head could have a surge rating of 13,000 watts.

If you are thinking of an ST generator head and you need 12,000 watts than I would look at a  15,000 or 20,000 watt head. It is always better to oversize some on ST generator heads. They do not have much surge capacity.

Henry

[RVC-1]

Guys,

My sincere apologies...life gets over busy too easily these days.  Henry was close to the specs:

Compressor: 1 Phase/RLA 14.1/LRA 73.0
Fan Motor: 1 Phase/FLA 2.0/0.25 Hp

This is optional but, would be nice to have if the Perkins can handle it.  It appears it can drive a 10 kW ST head fairly well and will certainly overpower a 7.5 kW. If there is a better head for me to consider I will do so but, the ST is cost effective.  I am aware of the poor surging of these because, I own a 20 kW ST head I have yet to build.  I want the 2o kW but, the 402C-05 system will be less expensive to build and will sip fuel relative to the Isuzu 4fb1 I have for the 20 kW head.

What else can you tell me?  Should I be purchasing parts I need from Rigmaster?  That is, radiator and other cooling system components.

Rick