® MODELS

JW6H-UFADF0 JW6H-UFAD80
JW6H-UFADJ0 JW6H-UFAA60
FIRE PUMP ENGINES JW6H-UFAD70 JW6H-UFAA80

FM-UL-cUL APPROVED RATINGS BHP/KW

RATED SPEED US-EPA
JW6H (NSPS)
MODEL Available
1760 1900 2100 2350 until


UFADF0 327 244 311 232 No Expiration
UFADJ0 350 261 332 247.5 No Expiration
UFAD70 376 280 399 297.5 No Expiration
UFAD80 422 315 400 298 400 298 No Expiration
UFAA60 360 268 NA 
UFAA80 422 315 400 298 NA 
 USA EPA (NSPS) Tier 3 Emissions Certified Off-Road (40 CFR Part 89)
and NSPS Stationary (40 CFR Part 60 Sub Part llll). Meet EU Stage IIA
emission level
Picture represents JW6H-TRWA Power Tech E Engine Series
 N/A = Not Applicable / Non-Emissionized
 All Models are available for Export

SPECIFICATIONS
JW6H MODELS
ITEM UFADF0 UFADJ0 UFAD70 UFAD80 UFAA60 UFAA80
Number of Cylinders 6
Aspiration TRWA
Rotation* CW
Overall Dimensions – in. (mm) 66.9 (1699) H X 61.1 (1553) L X 38.2 (971) W
Crankshaft Centerline Height – in. (mm) 17.7 (449)
Weight – lb (kg) 2094 (948)
Compression Ratio 16.0:1
Displacement – cu. in. (L) 549 (9.0)
Engine Type 4 Stroke Cycle – Inline Construction
Bore & Stroke – in. (mm) 4.66 x 5.35 (118 x 136)
Installation Drawing D627 D636
Wiring Diagram AC C07651
Wiring Diagram DC C072146, C071361, C071369

Engine Series John Deere 6090 Series Power Tech E

Speed Interpolation N/A

Abbreviations: CW – Clockwise TRWA – Turbocharged with Raw Water Aftercooling N/A – Not Available L – Length W – Width H - Height

*Rotation viewed from Heat Exchanger / Front of engine ENGINE RATINGS BASELINES

CERTIFIED POWER RATING • Engines are to be used for stationary emergency standby fire pump service only. Engines
are to be tested in accordance with NFPA 25.
• Each engine is factory tested to verify power and performance.
• Engines are rated at standard SAE conditions of 29.61 in. (752.1 mm) Hg barometer and
• FM-UL power ratings are shown at specific speeds, Clarke engines can be 77°F (25°C) inlet air temperature [approximates 300 ft. (91.4 m) above sea level] by the
applied at a single rated RPM setting ± 50 RPM. testing laboratory (see SAE Standard J 1349).
• A deduction of 3 percent from engine horsepower rating at standard SAE conditions shall
be made for diesel engines for each 1000 ft. (305 m) altitude above 300 ft. (91.4 m)
• A deduction of 1 percent from engine horsepower rating as corrected to standard SAE
conditions shall be made for diesel engines for every 10°F (5.6°C) above 77°F (25°C)
FM ambient temperature.
 ® MODELS
JW6H-UFADF0 JW6H-UFAD80
JW6H-UFADJ0 JW6H-UFAA60
FIRE PUMP ENGINES JW6H-UFAD70 JW6H-UFAA80

ENGINE EQUIPMENT
EQUIPMENT STANDARD OPTIONAL
Air Cleaner Direct Mounted, Washable, Indoor Service with Drip Shield Disposable, Drip Proof, Indoor Service Outdoor Type, Single or
Two Stage (Cyclonic)
Alarms Overspeed Alarm & Shutdown, Low Oil Pressure, Low & High Low Coolant Level, Low Oil Level, Oil Filter Differential Pressure,
Coolant Temperature, Low Raw Water Flow, High Raw Water Fuel Filter Differential Pressure, Air Filter Restriction
Temperature, Alternate ECM Warning, Fuel Injection Malfunction,
ECM Warning and Failure with Automatic Switching
Alternator 12V-DC, 42 Amps with Poly-Vee Belt and Guard 24V-DC, 40 Amps with Poly-Vee Belt and Guard
Coupling Bare Flywheel UL Listed Driveshaft and Guard, UFADD0/F0/J0/70-CDS50-SC;
UFAD80 – CDS50-SC AT 2100 RPM only
Electronic Control Module 12V-DC, Energized to Stop, Primary ECM always Powered on 24V-DC, Energized to Stop, Primary ECM always Powered on
Engine Heater 230V-AC, 2500 Watt
Exhaust Flex Connection SS Flex, 150# ANSI Flanged Connection, 6” SS Flex, 150# ANSI Flanged Connection, 8”
Exhaust Protection Metal Guards on Manifolds and Turbocharger
Flywheel Housing SAE #3
Flywheel Power Take Off 11.5” SAE Industrial Flywheel Connection
Fuel Connections Fire Resistant, Flexible, USA Coast Guard Approved, Supply and SS, Braided, cUL Listed, Supply and Return Lines
Return Lines
Fuel Filter Primary and Secondary Filter with Priming Pump
Fuel Injection System High Pressure Common Rail
Governor, Speed Dual Electronic Control Modules
Heat Exchanger Tube and Shell Type, 60 PSI (4 BAR), NPT(F) Connections – Sea
Water Compatible
Instrument Panel Multimeter to Display English and Metric, Tachometer, Hourmeter,
Water Temperature, Oil Pressure and One (1) Voltmeter with
Toggle Switch, Front Opening
Junction Box Integral with Instrument Panel; For DC Wiring Interconnection to
Engine Controller
Lube Oil Cooler Engine Water Cooled, Plate Type
Lube Oil Filter Full Flow with By-Pass Valve
Lube Oil Pump Gear Driven, Gear Type
Manual Start Control On Instrument Panel with Control Position Warning Light
Overspeed Control Electronic, Factory Set, Not Field Adjustable
Raw Water Cooling Loop Galvanized Seawater, All 316SS, High Pressure
w/Alarms
Raw Water Cooling Loop Automatic from Fire Pump Controller and from Engine Instrument Not Supplied (for Vertical Turbine Fire Pump Applications)
Solenoid Operation Panel (for Horizontal Fire Pump Applications)
Run – Stop Control On Instrument Panel with Control Position Warning Light
Starters One (1) 12V-DC with Two (2) Start Contactors One (1) 24V-DC with Two (2) Start Contactors
Throttle Control Adjustable Speed Control by Increase/Decrease Button, Tamper
Proof in Instrument Panel
Water Pump Centrifugal Type, Gear Driven
Abbreviations : DC – Direct Current, AC – Alternating Current, SAE – Society of Automotive Engineers, NPT(F) – National Pipe Tapered Thread (Female), NPT(M) –
National Pipe Tapered Thread (Male), ANSI – American National Standards Institute, SS – Stainless Steel

Fire Protection Products, Inc. UK, Ltd.

100 Progress Place, Cincinnati, Ohio 45246 Grange Works, Lomond Rd., Coatbridge, ML5-2NN
United States of America United Kingdom
Tel +1-513-475-FIRE(3473) Fax +1-513-771-8930 Tel +44-1236-429946 Fax +44-1236-427274
www.clarkefire.com www.clarkefire.com

C133422 revT Specifications and information contained in this brochure subject to change without notice.
01FEB18
 FIRE PUMP MODEL: JW6H-UFAD70
Heat Exchanger Cooled
Raw Water Charge Cooling
T ier 3 Emissions Certified
Brake Horsepow er - BHP (kw )

ENGINE SPEED - RPM

RESTRICTED:
Use only for Stand-By Fire Pump Applications

NAMEPLATE BHP (MAXIMUM PUMP LOAD)

ENGINE PERFORMANCE:
STANDARD CONDITIONS: (SAE J1349, ISO 3046)
77°F (25°C) AIR INLET TEMPERATURE
29.61 IN. (752.1MM) HG BAROMETRIC PRESSURE
#2 DIESEL FUEL (SEE C13940)
THIS DRAWING AND THE INFORMATION CREA TED DA TE CREA TED
HEREIN ARE OUR PROPERTY AND MAY
BE USED BY OTHERS ONLY AS 02/06/09
AUTHORIZED BY US. UNPUBLISHED --
ALL RIGHTS RESERVED UNDER THE
COPYRIGHT LAWS.
ENGINE MODEL JW6H-UFAD70
DRA WING NO . REV
Kevin Kunkler 06FEB09 C132973 A
 JW6H-UFAD70 Page 1 of 2
C 133106 Rev L
INSTALLATION & OPERATION DATA (I&O) DSP 16APR21

Basic Engine Description

Engine Manufacturer ......................................................................................................................................................
John Deere C o.
Ignition Type ......................................................................................................................................................
C ompression (Diesel)
Number of C ylinders ......................................................................................................................................................
6
Bore and Stroke - in (mm) ......................................................................................................................................................
4.66 (118) X 5.35 (136)
Displacement - in³ (L) ......................................................................................................................................................
549 (9)
C ompression Ratio ......................................................................................................................................................
16.0:1
Valves per cylinder
Intake ......................................................................................................................................................
2
Exhaust ......................................................................................................................................................
2
C ombustion System ......................................................................................................................................................
Direct Injection
Engine Type ......................................................................................................................................................
In-Line, 4 Stroke C ycle
Fuel Management C ontrol ......................................................................................................................................................
Electronic, High Pressure C ommon Rail
Firing Order (C W Rotation) ......................................................................................................................................................
1-5-3-6-2-4
Aspiration ......................................................................................................................................................
Turbocharged
C harge Air C ooling Type ......................................................................................................................................................
Raw Water C ooled
Rotation, viewed from front of engine, C lockwise (C W) ......................................................................................................................................................
Standard
Engine C rankcase Vent System ......................................................................................................................................................
Open
Installation Drawing ......................................................................................................................................................
D627
Weight - lb (kg) ......................................................................................................................................................
2094 (950)

Power Rating 1760 2100

Nameplate Power - HP (kW) ¹ ......................................................................................................................................................
376 (280) 399 (297.5)

Cooling System 1760 2100

Engine C oolant Heat - Btu/sec (kW) ......................................................................................................................................................
86 (90.7) 97.6 (103)
Engine Radiated Heat - Btu/sec (kW) ......................................................................................................................................................
25.6 (27) 27.4 (28.9)
Heat Exchanger Minimum Flow - [C 051387]
60°F (15°C ) Raw H2O - gal/min (L/min) ......................................................................................................................................................
24 (90.8) 26 (98.4)
100°F (37°C ) Raw H2O - gal/min (L/min) ......................................................................................................................................................
30 (114) 33 (125)
Heat Exchanger Maximum C ooling Raw Water - [C 051387]
Inlet Pressure - psi (bar) ......................................................................................................................................................
60 (4.1)
Flow - gal/min (L/min) ......................................................................................................................................................
80 (303)
Typical Engine H2O Operating Temp - °F (°C ) ......................................................................................................................................................
180 (82.2) - 195 (90.6)
Thermostat
Start to Open - °F (°C ) ......................................................................................................................................................
180 (82.2)
Fully Opened - °F (°C ) ......................................................................................................................................................
201 (93.9)
Engine C oolant C apacity - qt (L) ......................................................................................................................................................
25.9 (24.5)
C oolant Pressure C ap - lb/in² (kPa) ......................................................................................................................................................
15 (103)
Maximum Engine C oolant Temperature - °F (°C ) ......................................................................................................................................................
221 (105)
Minimum Engine C oolant Temperature - °F (°C ) ......................................................................................................................................................
160 (71.1)
High C oolant Temp Alarm Switch - °F (°C ) ......................................................................................................................................................
235 (113) - 241 (116)

Electric System - DC Standard Optional

System Voltage (Nominal) ......................................................................................................................................................
12 24
Battery C apacity for Ambients Above 32°F (0°C )
Voltage (Nominal) ......................................................................................................................................................
12 {C 07633} 12 {C 07633}
Qty. Per Battery Bank ......................................................................................................................................................
1 2
SAE size per J537 ......................................................................................................................................................
8D 8D
C C A @ 0°F (-18°C ) per J537 ......................................................................................................................................................
1200 1200
Reserve C apacity - Minutes per J537 ......................................................................................................................................................
430 430
Battery C able C ircuit, Max Resistance - ohm ......................................................................................................................................................
0.0017 0.0017
Battery C able Minimum Size
0-120 in. C ircuit Length ² ......................................................................................................................................................
00 00
121-160 in. C ircuit Length ² ......................................................................................................................................................
000 000
161-200 in. C ircuit Length ² ......................................................................................................................................................
0000 0000
C harging Alternator Maximum Output - Amp, ......................................................................................................................................................
40 {C 071363} 55 {C 071365}
Starter C ranking Amps, Rolling - @60°F (15°C ) ......................................................................................................................................................
440 {RE520634} 326 {C 07820}
 JW6H-UFAD70 Page 2 of 2
C 133106 Rev L
INSTALLATION & OPERATION DATA (I&O) DSP 16APR21

Exhaust System (Single Exhaust Outlet) 1760 2100

Exhaust Flow - ft.³/min (m³/min) ......................................................................................................................................................
1867 (52.9) 2214 (62.7)
Exhaust Temperature - °F (°C ) (corrected to 77°F) ......................................................................................................................................................
842 (450) 826 (441)
Maximum Allowable Back Pressure - in H2O (kPa) ......................................................................................................................................................
30 (7.5) 30 (7.5)
Minimum Exhaust Pipe Dia. - in (mm) ³ ......................................................................................................................................................
6 (152) 6 (152)

Fuel System 1760 2100

Fuel C onsumption - gal/hr (L/hr) ......................................................................................................................................................
18.8 (71.2) 20 (75.7)
Fuel Return - gal/hr (L/hr) ......................................................................................................................................................
45 (170) 45 (170)
Fuel Supply - gal/hr (L/hr) ......................................................................................................................................................
63.8 (241) 65.0 (246)
Fuel Pressure - lb/in² (kPa) ......................................................................................................................................................
2 (13.8) - 9 (62.1)
Minimum Line Size - Supply - in. ......................................................................................................................................................
.50 Schedule 40 Steel Pipe
Pipe Outer Diameter - in (mm) ......................................................................................................................................................
0.848 (21.5)
Minimum Line Size - Return - in. ......................................................................................................................................................
.375 Schedule 40 Steel Pipe
Pipe Outer Diameter - in (mm) ......................................................................................................................................................
0.675 (17.1)
Maximum Allowable Fuel Pump Suction Lift
with clean Filter - in H2O (mH2O) ......................................................................................................................................................
80 (2)
Maximum Allowable Fuel Head above Fuel pump, Supply or Return - ft (m) ......................................................................................................................................
6.6 (2)
Fuel Filter Micron Size ......................................................................................................................................................
2 (Secondary)

Heater System Standard

Engine C oolant Heater
Wattage (Nominal) ......................................................................................................................................................
2500
Voltage - AC , 1 Phase ......................................................................................................................................................
230 (+5%, -10%)
Part Number ......................................................................................................................................................
{C 122195}

Air System 1760 2100

C ombustion Air Flow - ft.³/min (m³/min) ......................................................................................................................................................
770 (21.8) 971 (27.5)
Air C leaner ......................................................................................................................................................
Standard Optional
Part Number ......................................................................................................................................................
{C 03244} {C 03330}
Type ......................................................................................................................................................
Indoor Service Only, C anister,
with Shield Single-Stage
C leaning method ......................................................................................................................................................
Washable Disposable
Air Intake Restriction Maximum Limit
Dirty Air C leaner - in H2O (kPa) ......................................................................................................................................................
14 (3.5) 14 (3.5)
C lean Air C leaner - in H2O (kPa) ......................................................................................................................................................
7 (1.7) 7 (1.7)
Maximum Allowable Temperature (Air To Engine Inlet) - °F (°C ) .....................................................................................................................................................
130 (54.4)

Lubrication System
Oil Pressure - normal - lb/in² (kPa) ......................................................................................................................................................
37 (255) - 41 (283)
Low Oil Pressure Alarm Switch - lb/in² (kPa) to ......................................................................................................................................................
21 (145) - 41 (283)
In Pan Oil Temperature - °F (°C ) ......................................................................................................................................................
190 (87.8) - 220 (104)
Total Oil C apacity with Filter - qt (L) ......................................................................................................................................................
30.1 (28.5)

Lube Oil Heater Optional

Wattage (Nominal) ......................................................................................................................................................
150
Voltage ......................................................................................................................................................
240V (+5%, -10%)
Part Number ......................................................................................................................................................
{C 04431}

Performance 1760 2100

BMEP - lb/in² (kPa) ......................................................................................................................................................
308 (2120) 274 (1890)
Piston Speed - ft/min (m/min) ......................................................................................................................................................
1569 (478) 1873 (571)
Mechanical Noise - dB(A) @ 1m ......................................................................................................................................................
C 133357 - Reference Noise data on Engine Page at www.clarkefire.com
Power C urve ......................................................................................................................................................
C 132973 - Reference Power Curve on Engine Page at www.clarkefire.com

NOTE: This engine is intended for indoor installation or in a weatherproof enclosure. ¹ Derate 3% per every 1000 ft. 304.8m above 300 ft. 91.4m and derate 1%
for every 10°F 5.55 °C above 77°F 25°C. ² Positive and Negative Cables Combined Length. ³ Minimum Exhaust Pipe Diameter is based on: 15 feet of pipe, one
90° elbow, and one Industrial silencer. A Back-pressure flow analysis must be performed on the actual field installed exhaust system to assure engine maximum
allowable back pressure is not exceeded. See Exhaust Sizing Calculator on www.clarkefire.com. { } indicates component reference part number.
 JW6H
ENGINE MATERIALS AND CONSTRUCTION
Air Cleaner Cylinder Block
Type…………..………….. .. .. Indoor Usage Only Type……………………………….One Piece with Non-Siamese Cylinders
Oiled Fabric Pleats Material…………………………….
Cast Iron Alloy
Material……..…..…….………. Surgical Cotton, Aluminum Mesh
Cylinder Head
Air Cleaner - Optional Type…………………………….…..
………………………..
Slab 2 Valve
Type…………………………. Canister Material………….………………….
Cast Iron
Material……………………… Pleated Paper
Housing………………..……… Enclosed Cylinder Liners
Type…………………………….…..
………………………..Centrifugal Cast, Wet Liner
Camshaft Material………...……………..….…
Alloy Iron Plateau, Honed
Material………….…………...… Cast Iron, Chill Hardened
Location…………...….……..… In Block Valves
Drive……………….………..… Gear, Spur Type…………………………….…..
……………………….. Poppet
Type of Cam…………..…......… Ground Arrangement…………….………… ……………
Overhead Valve
Number/Cylinder…………………. 1 intake/1 exhaust
Charge Air Cooler Operating Mechanism…………… Mechanical Rocker Arm
Type……………… Jacket RawWater
WaterCooled-JW6H-30, 38 (06WA)48, 50, Type of Lifter……...……………..Large Head
Cooled - JW6H-40(06WR),
58, H8, 60, AAM8, AA80, ADB0, ADD0, ADF0, ADJ0, AD70, Valve Seat Insert…...……………Replaceable
AD80
Materials (in contact with raw water)
Tubes………………. ……………………….. 90/10 CU/NI Fuel Pump
Headers ………………………..
36500 Muntz Type…………….
………………………..
Piston
Covers ………………………..
83600 Red Brass Drive……………………………….
Cam Lobe
Plumbing ………………………..
316 Stainless Steel/ Brass
90/10 Silicone Heat Exchanger
Type……………………………….. Tube & Shell
Coolant Pump Materials
Type………… .………………………..Centrifugal Tube& Headers…………………..Copper
Drive………… ……………..
………….. Gear Shell……………….
………………………..
Copper
Electrode………………………….Zinc
Coolant Thermostat
Type……………………………….Full Blocking Injection Pump
Qty…………………………………2 Type……………………….. In-Line
Drive…………………………… Gear
Cooling Loop (Galvanized)
Tees, Elbows, Pipe……………………………….
Galvanized Steel Lubrication Cooler
Ball Valves………………………………… Brass ASTM B 124 Type……………………………….Plate
Solenoid Valve……………………………….
Brass
Bronze
Pressure Regulator………………………………… Lubrication Pump
Strainer………………………………. Cast Iron (1/2"- 1" Loops) Type……………………………….Gear
or Bronze (1.25" - 2" Loops) Drive……………………………….
Gear

Cooling Loop (Sea Water) Main Bearings

Tees, Elbows, Pipe……………………………….
316 Stainless Steel Type………………………………… Precision Half Shells
Ball Valves………………………………… 316 Stainless Steel Material……………………………Steel Backed-Aluminum Lined
Solenoid Valve………………………………. 316 Stainless Steel
Pressure Regulator/Strainer…………………………………
Cast Brass ASTM B176 C87800 Piston
Type and Material………………..Aluminum Alloy with Reinforced
Cooling Loop (316SS) Top Ring Groove
Tees, Elbows, Pipe……………………………….
316 Stainless Steel Cooling……………………………. Oil Jet Spray
Ball Valves………………………………… 316 Stainless Steel
Solenoid Valve………………………………. 316 Stainless Steel Piston Pin
316 Stainless Steel
Pressure Regulator/Strainer………………………………… Type………………………………..
Full Floating - Offset

Connecting Rod Piston Rings

Type……………………………….I-Beam Taper 3
Number/Piston……………………..
Material…………………………….Forged Steel Alloy Top………………………………… Keystone Barrel Faced -
Plasma Coated
Crank Pin Bearings Second……………………………Tapered Cast Iron
Type……………………………….Precision Half Shell Third……………………………….. Chromium Faced
Number…………………………….1 Pair Per Cylinder
Material……………………………Wear-Guard

Crankshaft
Material……………………………Forged Steel
Type of Balance……………………..
Dynamic

C13616 revF
 Rating Specific Emissions Data

Nameplate Rating Information

Clarke Model JW6H-UFAD70

Power Rating (BHP/kW) 376/280
Certified Speed (RPM) 1760

Refer to Rating Data section on page 2 for emissions output values

Rating Specific Emissions Data - John Deere Power Systems

Rating Data

Rating 6090HFC47A
Certified Power(kW) 315
Rated Speed 1760
Vehicle Model Number OEM (Clarke Fire Pump-
Emergency)
Units g/kW-hr g/hp-hr
NOx 3.54 2.64
HC 0.12 0.09
NOx + HC N/A N/A
Pm 0.14 0.11
CO 0.9 0.7

Certificate Data

Engine Model Year 2022

EPA Family Name NJDXL09.0114
EPA JD Name 450HAB
EPA Certificate Number NJDXL09.0114-007

CARB Executive Order

Parent of Family 6090HFG84A
Units g/kW-hr
NOx 3.80
HC 0.05
NOx + HC N/A
Pm 0.11
CO 0.9

* The emission data listed is measured from a laboratory test engine according to the test
procedures of 40 CFR 89 or 40 CFR 1039, as applicable. The test engine is intended to represent
nominal production hardware, and we do not guarantee that every production engine will have
identical test results. The family parent data represents multiple ratings and this data may have
been collected at a different engine speed and load. Emission results may vary due to engine
manufacturing tolerances, engine operating conditions, fuels used, or other conditions beyond
our control.

This information is property of Deere & Company. It is provided solely for the purpose of
obtaining certification or permits of Deere powered equipment. Unauthorized distribution of this
information is prohibited.

Emissions Results by Rating run on Apr-05-2022

 JW6H-UFAD70
FIRE PUMP DRIVER

NOISE DATA
Mechanical Engine Noise *
Octave Band

RPM BHP OVERALL 31.5 Hz 63 Hz 125 Hz 250 Hz 500 Hz 1k Hz 2k Hz 4k Hz 8k Hz 16k Hz

dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A)
1760 376 109.80 69.60 74.10 86.10 98.80 98.80 101.00 105.10 103.20 102.70 99.30
2100 399 109.80 70.10 76.90 88.10 94.30 99.90 101.90 104.90 102.30 100.70 96.20

Raw Exhaust Engine Noise **

Octave Band

RPM BHP OVERALL 31.5 Hz 63 Hz 125 Hz 250 Hz 500 Hz 1k Hz 2k Hz 4k Hz 8k Hz 16k Hz

dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A)
1760 - 2100 376 - 399 114.20 0.00 103.90 108.30 103.00 105.20 104.80 107.50 104.70 94.40 88.00

* Values above are provided at 3.3ft (1m) from engine block and do not include the raw exhaust noise.
** Values above are provided at 23ft (7m), 90° horizontal, from a vertical exhaust outlet and does not include noise created mechanically by the engine.
The above data reflects nominal values for a typical engine of this model, speed and power in a free-field environment, tested at a no-load condition.
Installation specifics such as background noise level and amplification of noise levels from reflecting off of surrounding objects, will affect the overall noise
levels observed. As a result of this, Clarke makes no guarantees to the above levels in an actual installation.

C133357 Rev D 23Jan18 DSP