Powerhouse PH2400PRi/E - Appendix A - Emission Control System; Emission Control System Components; Emission Source and Regulation; Maintenance and Air Quality Index

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Table of Contents
APPENDIX A - EMISSION CONTROL SYSTEM
Your generator has an engine that has been approved by the California Air Resources Board. Other than the tune up procedures specied in the
Maintenance Schedule in this Owner's Manual, no additional maintenance is required.
The emission control system has the following components:
1. Fuel System: The fuel tank, cap, indicator and hoses are specially designed and constructed to not allow fuel vapors to permeate
and be released to the atmosphere.
2. A carbon activated canister collects gasoline vapors from the fuel tank and returns them to the combustion chamber for burning.
3. A catalytic converter is built into the muer to further treat the engine exhaust.
4. A secondary air injection valve adds fresh air to ignite unburned fuel in the exhaust.
5. Contact your authorized POWERHOUSE® service center to obtain the correct replacement parts and service on this system.
Emission source
Exhaust gas contains carbon monoxide, nitrogen oxides (NOX), and hydrocarbons. It is very important to control the emissions of NOX and
hydrocarbons as they are a major contributor to air pollution. Carbon monoxide is a poisonous gas. The emission of fuel vapors is a source of
pollution as well. The POWERHOUSE® generator engine utilizes a precise air-fuel ratio and emission control system to reduce the emissions of
carbon monoxide, NOX, hydrocarbons, and evaporative fuel emissions.
Regulation
Your engine has been designed to meet current Environmental Protection Agency (EPA) and the California Air Resources Board (CARB) clean air
standards. The regulations dictate that the manufacturer provides operation and maintenance standards regarding the emission control system.
Tune up specications are provided in the Specications section and a description of the emission control system may be found in the appendix
to this manual. Adherence to the following instructions will ensure your engine meets the emission control standards.
Modification
Modication of the emission control system may lead to increased emissions. Modication is dened as the following:
• Disassembling or modifying the function or parts of the intake, fuel or exhaust system.
• Modifying or destroying the speed governing function of the generator.
Engine Faults That May Affect Emission
Any of the following faults must be repaired immediately. Consult with your authorized POWERHOUSE® service center for diagnosis and repair:
• Hard starting or shut down after starting
• Unstable idle speed
• Shut down or backre after applying an electrical load
• Backre or after re
• Black smoke and/or excessive fuel consumption
Replacement Parts and Accessories
The parts making up the emission control system applied to POWERHOUSE® engine have been specically approved and certied by the
regulatory agencies. You can trust that the replacement parts supplied by POWERHOUSE® have been manufactured to the same production
standard as the original parts. The use of replacement parts or accessories which are not designed by POWERHOUSE® may aect the engine
emission performance. The manufacturers of replacement parts and accessories have the responsibility to guarantee that their replacement
products will not adversely aect emission performance.
Maintenance
Maintain the generator according to the Maintenance Schedule in this Owner's Manual. Service items more frequently when used in dusty areas,
or under conditions of high load, temperature, and humidity.
Air Quality Index (only for California certified models)
CARB requires that an air quality index label be attached to every certied engine showing the engine
emission information for the emission duration period. The label is provided for the user to compare
the emission performance of dierent engines. The lower the air index, the better the engine emission
performance. The description of durability is helpful for the user to learn the engine emission duration
period and the service life of emission control system. Refer to the Warranty section of this owner’s
manual for more information.
The air quality index label is designed to be permanently axed to the generator and removal should
not be attempted.
(Example Label)