Exhaust Requirements; Air Requirements - Kohler 18TRES Installation Manual

1.4.1

Exhaust Requirements

WARNING
Carbon monoxide.
Can cause
fainting, or death.
The exhaust
leakproof and routinely inspected.
Generator set operation. Carbon monoxide can cause
severe nausea, fainting, or death. Carbon monoxide is an
odorless, colorless, tasteless, nonirritating gas that can cause
death if inhaled for even a short time. Avoid breathing exhaust
fumes when working on or near the generator set. Never
operate the generator set inside a building. Never operate the
generator set where exhaust gas could seep inside or be
drawn into a potentially occupied building through windows, air
intake vents, or other openings.
The exhaust system is complete for generator sets
installed outdoors. Do not install this generator set
indoors.
Figure 1-9 gives the exhaust flow and temperature at
rated load. The engine exhaust mixes with the
generator set cooling air at the exhaust end of the
enclosure. Mount the generator set so that the hot
exhaust does not blow on plants or other combustible
materials. Maintain the clearances shown in Figure 1-3
or Figure 1-6.
Exhaust System
Exhaust flow at rated kW,
3
m /min. (cfm)
8.5 kW
12 kW
17/18 kW
Exhaust gas exiting the enclosure
at rated kW, _C (_F)
Figure 1-9 Exhaust Flow and Temperature
TP-6514 9/09
severe nausea,
system must be
60 Hz 50 Hz
3.3 (115) 2.7 (96)
3.8 (135) 3.2 (113)
5.3 (187) 4.4 (155)
216 (420)
1.4.2

Air Requirements

The generator set requires correct air flow for cooling
and combustion. The inlet and outlet openings in the
sound enclosure provide the cooling and combustion
air. Figure 1-10 shows the locations of the cooling air
intake and exhaust vents. Inspect the air inlet and outlet
openings inside and outside the housing to ensure that
the air flow is not blocked.
1
2
1. Exhaust outlet
2. Alternator air intake (both sides)
3. Engine air intake
Figure 1-10 Cooling Air Intake and Exhaust, Typical
Air Requirements,
Cooling
Air
Model Hz
60 26.9 (950)
8.5 kW
50 22.4 (790)
60 26.9 (950)
12 kW
50 22.4 (790)
60 28.0 (989)
17/18 kW
50 22.6 (798)
Figure 1-11 Air Requirements
3
3
tp6195
3
m /min. (cfm)
Combustion Total
Air Inlet Air
0.94 (33.4) 27.8 (980)
0.8 (28.0) 23.2 (820)
1.1 (39.2) 28.0 (990)
0.9 (32.6) 23.4 (825)
1.62 (57.3) 29.6 (1045)
1.42 (50.1) 24.0 (848)
Section 1 Installation 21