Victor and Risa from Middletown, NJ have been Green Sun Energy Services clients since September of 2020. The machine is a Generac 7042-2 rated 22 kW on propane and 19.5 kW on natural gas, running on natural gas, on a 150-amp transfer switch. It was commissioned in August of 2021. At about 3,699 square feet the house is at the size where a 22 kW machine and a 150-amp switch is the sensible pairing: the switch carries the whole panel, and the machine is rated to hold it with the air conditioning running.
Project Facts
- Location
- Middletown, NJ
- Services
- Standby Generator Installation, Standby Generator Service
- Client since
- September 2020
- Manufacturer
- Generac Model # 7042-2
- Rated output
- 22 kW LP / 19.5 kW NG
- Fuel
- Natural Gas
- Home sized for
- 3,699 sq ft
- Electrical service
- 150 amp
- Transfer switch
- 150 amp
- Load management
- Managed Whole House
Excellent and professionally installed, respectful of homeowners property and priorities.
Standby generator questions from Middletown homeowners
Can a standby generator be installed in Middletown without natural gas?
Yes. Residential standby generators commonly run on liquid propane. A properly sized tank, regulator and piping system has to be designed to deliver adequate vapour flow and pressure for the machine.
Can a generator sit next to the air-conditioning condenser?
Potentially, provided the installation preserves the clearances required by both machines. The generator's hot exhaust should not be directed at the condenser, and neither unit should obstruct the other's airflow or service access. In practice that often means about three feet or more of separation, but the manufacturers' actual requirements decide it.
Can the generator stay connected during a pressure test?
The machine has to be protected from test pressures beyond what its fuel controls are built to withstand. The fuel-gas code sets out when appliances are disconnected or isolated for testing, and the plumbing contractor follows both that code and the generator's installation instructions.