Spec Sheet
Gillette Generators, Inc. •
••
• 2921 Thorne Dr. •Elkhart, IN • 46514 • Ph: 574-264-9639 • Fax: 574-262-1840 • Web: www.gillettegenerators.com • spc4-190104 
3
COOLING SYSTEM   
Type of System ................................ Pressurized, closed recovery 
Coolant Pump ..................................... Pre-lubricated, self-sealing 
Cooling Fan Type (no. of blades) ............................... Pusher (12) 
Fan Diameter inches (mm) ............................................. 38" (965) 
Ambient Capacity of Radiator °F (°C) .......................... 125 (51.6) 
Engine Jacket Coolant Capacity Gal (L) ........................ 5.5 (21.0) 
Radiator Coolant Capacity Gal. (L) .............................. 30.6 (116) 
Maximum Restriction of Cooling Air Intake 
and discharge side of radiator in. H
2
0 (kpa) ..................  0.5 (.125) 
Water Pump Capacity gpm (L/min) ..............  ................. 75 (284) 
Heat Reject Coolant: Btu/min (kw) ..............  .............. 8100 (142) 
Low Radiator Coolant Level Shutdown………………...Standard 
Note: Coolant temp. shut-down switch setting at 230°F (110°C) with 50/50 
(water/antifreeze) mix. 
AIR REQUIREMENTS   
Combustion Air, cfm (m
3
/min) ....................  ............... 448 (12.7) 
Radiator Air Flow cfm (m
3
/min)…………… ....…18,000 (510) 
Heat Rejected to Ambient: 
  Engine: kw (btu/min) .............................  ............. 60.3 (3430) 
  Alternator: kw (btu/min) ........................  ................. 16 (910) 
EXHAUST SYSTEM   
Exhaust Outlet Size .................................................................... 5" 
Max. Back Pressure, in. hg (KPA). ................................ 3.0 (10.2) 
Exhaust Flow, at rated kw: cfm (m
3
/min) .....  ..... ……1425 (40.3) 
Exhaust Temp., at rated kw: °F (ºC) ……………..….1382 (750) 
Engines are EPA certified for Natural Gas. 
Deep Sea 7420 
The  “7420”  controller  is  an 
auto  start  mains  (utility) 
failure  module  for  single 
gen-set  applications.  This 
controller  includes  a  backlit 
LCD  display  which 
continuously  displays  the 
status  of  the  engine  and 
generator at all times. 
The  “7420”  controller  will  also  monitor  speed,  frequency, 
voltage,  current,  oil  pressure,  coolant  temp.,  and  fuel  levels. 
These modules have been designed to display warning and shut 
down  status.    It  also  includes:  (11)  configurable  inputs  •  (8) 
configurable  outputs  •  voltage  monitoring  •  mains  (utility) 
failure  detection  •  (250)  event  logs  •  configurable  timers  • 
automatic shutdown or warning during fault detection  • remote 
start (on load) • engine preheat • advanced metering capability • 
hour meter • text LCD displays • protected solid state outputs • 
test buttons  for:  stop/reset  •  manual  mode  •  auto  mode  •  lamp 
test  •  start  button  •  power  monitoring  (kWh,  kVAr,  kVAh, 
kVArh)  
SOUND LEVELS MEASURED IN dB(A)   
  Open    Level 2 
   Set    Encl.
Level 2, Critical Silencer ......................... 90............  ........... 75 
Note: Open sets (no enclosure) has (2) optional silencer system choices 
due  to unknown job-site applications.   Level 2  enclosure has  installed 
critical  silencer  with  upgrade  to  hospital  silencer.  Sound  tests  are 
averaged from several test points and taken at 23 ft. (7 m) from source 
of noise at normal operation. 
DERATE GENERATOR FOR ALTITUDE   
3% per 1000 ft.(305m) above 3000 ft. (914m) from sea level 
DERATE GENERATOR FOR TEMPERATURE   
2% per 10°F(5.6°C) above 85°F (29.4°C) 
DIMENSIONS AND WEIGHTS 
  Open    Level 2 
    Set    Enclosure
Length in (cm) ......................... 132 (335) .....  ................ 174 (442) 
Width in (cm) ........................... 52 (132) ......  ................. 52 (132) 
Height in (cm) .......................... 65 (165) ......  ................. 80 (203) 
1 Ø Net Weight lbs (kg) ........ 5300 (2404) ...  ............ 6570 (2980) 
1 Ø Ship Weight lbs (kg) ...... 5575 (2529) ...  ............ 6915 (3137) 
3 Ø Net Weight lbs (kg) ........ 5175 (2347) ...  ............ 6445 (2923) 
3 Ø Ship Weight lbs (kg) ...... 5450 (2472) ...  ............ 6790 (3080) 
This  controller  includes  expansion  features  including  RS232, 
RS484  (using  MODBUS-RTU/TCP),  direct  USB  connection 
with  PC,  expansion  optioned  using  DSENet  for  remote 
annunciation and remote relay interfacing for a distance of up to 
3300FT.    The  controller  software  is  freely  downloadable  from 
the internet and allows monitoring with direct USB cable, LAN, 
or by internet via the built in web interface. 
Further  expansion  is  available  by      
adding  the  optional  “WebNet“  gateway  
interface  module.    This  device  will  allow 
comprehensive  monitoring  of  the  generator 
via  the  cloud  including  identification, 
location, and status. Some advantages of this 
module  include:  reduced  site  visits  and 
maintenance costs • remote fuel management 
•  fault  analysis  •  asset  tracking  •  automatic 
system alerts • maximized system up-time. 
APPLICATION AND ENGINEERING DATA FOR MODEL PR-1000-60 HZ 
DEEP SEA 7420 DIGITAL MICROPROCESSOR CONTROLLER 




