Stopping The Generator.9; Applying Loads To Generator.9; Summer/Winter Hear Riser System.9 - Generac Power Systems NP-50G Series Owner's Manual

Generac NP-50G Recreational Vehicle Generator
1. Turn OFF electrical loads, using whatever means provided
in your vehicle (such as a main line circuit breaker or trans¬
fer switch).
NOTE:
If starting from the generator control panel, turn OFF
loads by setting the generators main circuit breaker to "OFP
or "OPEN". If starting from a Remote Panel, turn OFF loads
using whatever means is provided in the vehicle (such as a
main circuit breaker). Electrical load circuits will be turned ON
after the generator has started, stabilized and warmed up.
2. If you have not started the engine in more than two weeks,
press the Fuel Pump Primer switch and hold it for about 30
seconds to prime fuel system. However, if the engine is
warm, skip Step 2.
3. Hold the engine Start/Stop Switch at START to crank engine.
Release the switch when the engine starts.
CAUTION: If the engine does not start after it has
been cranking for 15 seconds, release the
start/stop switch and try again. Holding the switch
for longer than 15 seconds can damage the starter
motor.
4. Let the engine run at no-load for a few minutes to stabilize
and warm up.
5. Turn ON electrical loads, using whatever means provided
(such as a main circuit breaker or transfer switch).
STOPPING THE GENERATOR
1. Turn OFF all electrical loads, using whatever means pro¬
vided (such as a main circuit breaker or transfer switch).
2. Let generator run at no-load for a few minutes, to stabilize
internal engine generator temperatures.
3. Place Start/Stop switch in its STOP position.
If electrical loads are applied at reduced operating speeds, such
loads imposed on the engine when sufficient power is not avail¬
able may shorten engine life. Never turn ON electrical loads
until after the generator engine has started and stabilized
ON-speed.
SUMMER/WINTER
HEAT RISER SYSTEM
Under certain weather conditions, it is possible for ice to form
in the venturi area of the carburetor. This condition can be
very dangerous because it can prevent the governor system
from functioning properly, which results in a "run-away" engine.
The most common weather conditions leading to this problem
are temperatures in the range of 25° to 35°F, along with high
humidity. This ice formation can also be attributed to the load
being applied during these weather conditions. Generators
running with no load or light loads applied usually have the
most problems. The operator is responsible for adjusting the
heat riser system for weather conditions.
■ CONSTRUCTION AND FUNCTION OF
HEAT RISER SYSTEM_
The system consists of the following components:
• Plastic collector box that is attached to the back side of the
air filter base.
• "Flapper" valve and lever assembly.
• Corrugated aluminum tube that goes from the above plas¬
tic box, through engine enclosure sheet metal and nestled
very close to exhaust manifold.
Place the lever in the "Summer" position (Figure 4), to draw
air into the filter box directly from the compartment through
the tube on the right side of the plastic box.
APPLYING LOADS TO GENERATOR
When applying electrical loads to the generator, observe these
guidelines:
• Before applying electrical loads, let the generator stabilize
• and warm up for a minute or two.
• DO NOT overload the generator.
■ LET ENGINE STABILIZE
The generator supplies correct rated voltage only at proper
governed speed. Some electrical appliances may be extremely
sensitive to voltage. Incorrect voltages can damage those
appliances.
Figure 4 — Adjustment Summer/Winter Lever
Recreational Vehicle Generator