Fig. 6
Operating the generator at low altitudes with a high altitude setting can cause power loss, poor
starting, overheating and engine damage. Always reset the high altitude adjustment when returning to
lower altitudes.
Operating in Cold Weather
Pay particular attention to the following when operating the generator in cold weather.
1. Make sure the engine oil viscosity is appropriate for the ambient temperatures. Change the oil if
there is a sudden drop in temperature. See Engine Oil Recommendations.
2. Perform spark plug maintenance. See Spark Plug Maintenance.
3. Perform starting battery maintenance. See Battery Maintenance.
Operating in Hot Weather
Generators, similar to any engine system, need cool air while running. Flex Power generators are designed to
manage airflow across all components to maintain a cool running temperature. Many factors go into the
design of a generator to ensure proper airflow. Components like the enclosure, service door placement, base
pan geometry, and blower wheel design play large roles in ensuring proper ventilation inside the generator.
Generator sets must be well ventilated to ensure proper operation. A well-designed ventilation path will:
· Provide combustion air that meets generator inlet air parameters
· Remove heat dissipated by the alternator and engine
· Limit recirculation of hot exhaust gases into the inlet air stream
While the generator has been optimized for cooling internally, there is one key factor that cannot be
controlled: the environment. Where the generator lives can play a big role in how the generator’s cooling
system performs. This environment includes both the immediate vicinity of the RV, as well as external
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