Marathon MAGNUM ROUTER Betreibershandbuch PDF herunterladen (Seite 34)

DERATING FOR ALTITUDE

All units are subject to derating for altitude and temperature; this will reduce the available power for operating tools

and accessories connected to the receptacles. Typical reductions in performance are 2-4% for every 1000 ft (305

m) of elevation and 1% per 10ºF (5.6ºC) increase in ambient air temperature over 72ºF (22ºC).

WET STACKING

The unit is powered by a diesel engine. Diesel engines are susceptible to wet stacking if lightly loaded. Wet stacking

occurs when an engine is run at less than 30% of its full load capacity, causing unburned fuel to accumulate in the

exhaust system. Wet stacking can be detected by continuous black exhaust when the unit is under a constant load.

It can also cause fouling of injectors and buildup on engine valves. Diesel engines operate properly when applied

loads are between 30% and 100% capacity. Appropriate generator sizing is determined by the anticipated load. If

the unit is in a wet stack condition, load the unit heavily for five hours or until the exhaust is clear.

Wet stacking in the exhaust system is less likely to occur in iT4-certified engines because of regeneration of the

Diesel Particulate Filter (DPF). During the regeneration process, exhaust temperatures are increased to burn off

accumulated particulate, and in the process also removes any un-burned diesel fuel or engine oil in the exhaust

system. Wet stacking may still be present in the engine due to low cylinder temperatures.

Note: If the unit has a 15% or less load for 10 minutes, “Wet Stacking Alarm” will pop up. The unit will still run but

the controller will be inaccessible. The alarm needs to be acknowledged in order to allow the controller to be accessible

again by pressing the Alarm Mute button.

CONTROL PANEL RECEPTACLES

The generator is equipped with five receptacles. The

large receptacles are 240/120VAC twist-lock recep-

tacles rated at 50A each. The smaller duplex recep-

tacles are 120VAC rated at 20A each with ground fault

circuit interrupt (GFCI) protection. These receptacles

are not routed through the main circuit breaker. Each

receptacle has its own circuit breaker, located directly

above or next to the receptacle. Each breaker is sized

to the maximum rating of the corresponding recepta-

cle.

Power to the receptacles is

available any time the generator

is running, EVEN IF THE MAIN

CIRCUIT BREAKER IS IN THE

OFF (O) POSITION. MAKE

SURE THAT ANY EQUIPMENT

CONNECTED TO THE

RECEPTACLES IS TURNED

OFF BEFORE TURNING THE

BREAKERS ON. Make sure that

the voltage selector switch is in

the proper position and that the

output voltage is correct for the

equipment that is connected to

the receptacles. Improper voltage

may cause equipment damage or

malfunction.

120V GFCI

Receptacles

50A Circuit

Breakers

20A Circuit

Breakers

120/240V

Twist-Lock

Receptacles

00453

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