Spec Sheet

G4-304 (30RCLA) 6/21
Application Data
Cooling
Radiator System 60 Hz 50 Hz
Ambient temperature, _C(_F)
45 (113)
Engine jack et water capacity, L (gal.) 2.65 (0.7)
Radiator system capacity, including
engine, L (gal.)
13.2 (3.5)
Water pump type Centrifugal
Fan diameter, mm (in.) qty. 3 @ 406 (16)
Fan power requirements (powered by
engine battery charging alternator)
12VDC, 18 amps each
Operation Requirements
Air Requirements 60 Hz 50 Hz
Radiator-cooled cooling air,
m
3
/min. (scfm)[
51 (1800) 51 (1800)
Combustion air, m
3
/min. (cfm) 1.6 (57) 1.3 (45)
Air over engine, m
3
/min. (cfm) 25 (900) 25 (900)
[ Air density = 1.20 kg/m
3
(0.075 lbm/ft
3
)
Fuel Consumption]
NaturalGas,m
3
/hr. (cfh) at % load 60 Hz 50 Hz
100% 12.0 (424) 10.0 (353)
75% 9.8 (345) 8.2 (289)
50% 7.6 (268) 6.3 (222)
25% 5.5 (196) 4.5 (159)
Exercise 3.4 (121) 2.8 (99)
LP Gas, m
3
/hr. (cfh) at % load 60 Hz 50 Hz
100% 4.7 (166) 3.9 (138)
75% 3.7 (132) 3.0 (105)
50% 2.8 (100) 2.3 (81)
25% 1.9 (69) 1.6 (56)
Exercise 1.2 (41) 1.0 (35)
] Nominal Fuel Rating: Natural gas, 37 MJ/m
3
(1000 Btu/ft
3
)
LP Vapor, 93 MJ/m
3
(2500 Btu/ft
3
)
LP vapor conversion factors:
8.58 ft.
3
=1lb.
0.535 m
3
=1kg.
36.39 ft.
3
= 1 gal.
Sound Enclosure Features
D Sound-attenuating enclosure uses acoustic insulation that
meets UL 94 HF1 flammability classification and repels
moisture absorption.
D Internally mounted critical silencer.
D Skid-mounted, aluminum construction with two removable
access panels.
D Fade-, scratch-, and corrosion-resistant Kohlerr cashmere
powder-baked finish.
Sound Data
Model 30RCLA 8 point logarithmic average sound levels are
53 dB(A) during weekly engine exercise and 61 dB(A) during
full-speed generator diagnostics and normal operation. For
comparison to competitor ratings, the lowest point sound levels
are 52 dB(A) and 59 dB(A) respectively. *
All sound levels are measured at 7 meters with no load.
* Lowest of 8 points measured around the generator . Sound levels at other points
around generator may vary depending on installation parameters.
RDC2 Controller
V oltage: 240 V
Freq: 60.0 Hz
The RDC2 controller provides integrated control for the
generator set, Kohlerr Model RXT transfer switch,
programmable interface module (PIM), and load management.
The RDC2 controller’s 2-line LCD screen displays status
messages and system settings that are clear and easy to read,
even in direct sunlight or low light.
RDC2 Controller Features
D Membrane keypad
d OFF, AUTO, and RUN push buttons
d Select and arrow buttons for access to system
configuration and adjustment menus
D LED indicators for OFF, AUTO, and RUN modes
D LED indicators for utility power and generator set source
availability and ATS position (Model RXT transfer switch
required)
D LCD screen
d Two lines x 16 characters per line
d Backlit display with adjustable contrast for excellent
visibility in all lighting conditions
D Scrolling system status display
d Generator set status
d Voltage and frequency
d Engine temperature
d Oil pressure
d Battery voltage
d Engine runtime hours
D Date and time displays
D Smart engine cooldown senses engine temperature
D Digital isochronous governor to maintain steady-state speed
at all loads
D Digital voltage regulation: ±1.0% RMS no-load to full-load
D Automatic start with programmed cranking cycle
D Programmable exerciser can be set to start automatically on
any future day and time, and to run every week or every two
weeks
D Exercise modes
d Unloaded exercise with complete system diagnostics
d Unloaded full-speed exercise
d Loaded full-speed exercise (Model RXT ATS required)
D Front-access mini USB connector for SiteTecht connection
D Integral Ethernet connector for Kohlerr OnCuer Plus
D Built-in 2.5 amp battery charger
D Remote two-wire start/stop capability for optional connection
of a Model RDT transfer switch
See additional controller features on the next page.