ClearFire-LC Brochure - Cleaver
LC
CLEARFIRE
®
CONDENSING FIRETUBE BOILER DESIGNED FOR
LARGE SCALE HIGH-EFFICIENCY HYDRONIC SYSTEMS
4,000 TO 12,000 MBTU/HR
Unprecedented Power for
Hydronic Applications
Cleaver-Brooks has raised the bar in condensing boilers with the ClearFire®-LC, with up to 12,000 MBTU/
hr capacity. Cleaver-Brooks engineers designed the highest capacity condensing firetube boiler available. By
combining our EX Technology with the ALUFER® condensing firetube, Cleaver-Brooks is able to deliver the most
versatile boiler available.
ClearFire®–LC
4,000–12,000 MBTU/hr
Features
• Full condensing with up to 99%
efficiency and 5:1 turndown
• Ultra-low emissions available to 9 ppm
• No minimum return water temperature
for maximum efficiency and reliability
• Dual temperature returns provide 6+%
efficiency gain
• Up-front capital cost is reduced by
installing fewer larger-capacity boilers
versus many smaller boilers
• Fully integrated system includes boiler,
burner and controls
• Built-in lead/lag control of up to eight
boilers
• Ideal for primary variable flow systems
Maximum Capacity — Unparalleled Efficiency
12,000
MBTU/HR
4,000
MBTU/HR
2
The revolutionary ClearFire®–LC (CFLC) line provides maximum flexibility for larger facilities
with enhanced efficiency. The larger capacity design allows the most effective installation
by using fewer units as opposed to banks of smaller boilers, thus reducing capital cost,
complexity and maintenance. With six different large capacity sizes available, starting at
4,000 up to 12,000 MBTU/hr, there’s a CFLC that’s right for your needs.
Flexible Solution for Condensing
and Hybrid Applications
Boilers
The ClearFire®–LC (CFLC) is the ideal hydronic boiler for new and retrofit opportunities to increase not only system
efficiency, but reliability. When used in condensing systems, the CFLC delivers the lowest total cost of ownership
and implementation. When used in a traditional non-condensing application, the CFLC eliminates the need for
piping, pumping and control compromises normally required to protect non-condensing boilers. The CFLC is the
perfect complement to hybrid applications, easily blending the benefits of condensing performance in applications
previously considered impractical.
Versatile Controls Solutions
The integrated Falcon lead/lag control is uniquely suited to sequence and modulate up to eight ClearFire–
LC boilers, or a combination of other Cleaver-Brooks models using the Falcon hydronic control platform,
providing simplicity, flexibility and maximum system operational efficiency.
For additional versatility across multiple boiler control platforms, Cleaver-Brooks Hydronic System Control
(HSC) is engineered to work with condensing, non-condensing and hybrid designs to optimize the
performance and efficiency of any hydronic system. For details on how the HSC can deliver performance,
flexibility and reliability to your facility, contact your local authorized Cleaver-Brooks representative at
cleaverbrooks.com/reps.
CONDENSING HEADER
TEMPERATURE
• • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • •
• • • •
•
CONDENSING HYDRONIC
NON-CONDENSING HYDRONIC
• • • • • • • •
• • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • •
• • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
•••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
OUTSIDE AIR
TEMPERATURE
PUMP
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • •
The Hydronic System Control
(HSC) allows facilities to maximize
operating efficiency and
minimize the operating cost of
hydronic systems. By measuring
outside air temperature along
with the temperatures of the
supply water, the condensing
boiler’s header and the return
water, the HSC determines the
most efficient operation of your
hydronic system. The HSC uses
an exclusive control strategy
to determine if it is best to
operate only condensing
boilers, only non-condensing
boilers or a combination of both
in a hybrid system. The HSC
can be implemented in primaryvariable flow, primary-secondary,
or combination pumping
arrangements (as shown) for
both new and existing systems.
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
TYPICAL HYBRID SYSTEM
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
RETURN WATER
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
TEMPERATURE
SUPPLY WATER
TEMPERATURE
SYSTEM
PUMPS
RETURN WATER IN
• • • • •
CONTROL
COMMUNICATION
RETURN WATER
SUPPLY WATER
SUPPLY WATER OUT
3
The Latest Boiler Design Technology
Superior Efficiency
SUPERIOR FIRETUBE
TECHNOLOGY
Our upper non-condensing heat exchanger zone
utilizes our exclusive EX spiral tube technology
proven in our CBEX boilers. The tube design
advancements allow for more heat transfer in a
more compact footprint.
The condensing zone utilizes our ALUFER
technology and is constructed from an inner
(fireside) aluminum alloy finned surface, die-
The ClearFire®–LC integrates Cleaver-Brooks leading heat
exchanger, burner and control technologies into a large
capacity condensing boiler solution. The CFLC’s integrated
premix burner and linkageless control work together to
provide full modulation, ultra-low emissions and optimum
turndown. By combining our proven extended heating
surface tube designs, our patented ALUFER® tubes and
exclusive EX spiral tubes in a true counter flow arrangement,
the CFLC delivers the capacity, efficiency and reliability
previously considered unattainable.
HEAT EXCHANGER
fitted within an outer duplex stainless steel
Every aspect of the true counter flow design is engineered to
tube, providing exceptional heat exchange
ensure the maximum effective heat transfer possible. Nobody
characteristics. The corrosion-resistant properties
knows firetube boilers like Cleaver-Brooks, and our proven firetube
of the ALUFER tube assure long life and reliability
arrangement ensures reliability and longevity. The large water
of the boiler.
volume and low pressure drop inherent in our firetube design make
it ideal for primary variable flow pumping applications.
EX SPIRAL FIRETUBE
MODULATING PREMIX BURNER
The modulating venturi premix
4 85% more heat transfer than
a straight tube design
burner and linkageless control
automatically adjust the air/gas
4 Keeps hot flue gas in
turbulent flow throughout
profile
mixture for maximum efficiency and
optimum turndown. A symmetrical,
360° even-temperature heat output is
achieved from the burner, providing
clean combustion with ultra-low NOx
emissions of less than 20 ppm
as standard and less than 9
ALUFER FIRETUBE
ppm as optional.
4 Thermal conductivity is 10
times greater than
stainless alone
4 Provides the maximum
effective heating surface
where it is needed the most
4 Heating surface up to five
times larger than other
condensing boilers
4
EFFECTIVE HEAT TRANSFER INCREASE
Straight Firetube = 1.0
EX Spiral Tube Technology = 1.85
ALUFER Firetube Technology = 4.0
The above shows the “Relative Heat Transfer Effectiveness
Coefficient.” This means that just 3" of the ALUFER® firetube
will transfer as much heat from the flue gas to the water as
12" of the same diameter straight firetube.
Boilers
DUAL RETURN ADVANTAGE
The ClearFire®-C and ClearFire®-LC’s Dual Return Advantage offers more opportunity to improve system efficiency. Most
hydronic systems blend returns from different loops, compromising the performance of your condensing boiler system.
The combination of our counterflow heat exchanger and ALUFER® firetube design allows you to connect a cold (less than
130°F) return to the lower inlet connection and connect the high-temperature (greater than 140°F) return to the upper inlet
connection. This results in a 6%+ gain in efficiency by achieving true condensing performance even in applications with hightemperature heating loops.
6
1
3
2
8
7
4
9
5
10
11
Components
1
Exhaust connection
6
Hot water supply outlet
2
Premix modular venturi/
blower assembly
7
Metal fiber premix burner for
ultra-low NOx emissions
3
Gas train UL/CSD-1 compliant
4
5
User-friendly Falcon control
with color touch screen
interface
Flue and condensation
collection chamber
8
9
Spiral tubes with EX
technology for increased heat
transfer versus plain tube
Large water volume, ideal for
primary variable flow
10
11
Patented ALUFER tubes
for maximum condensing
efficiency
Low- and high-temperature
return connections for 6+%
efficiency gain
5
Intelligent Integrated Controls
Coordinated control of your hydronic boiler room is the key to providing reliable operation that maximizes system efficiency.
Cleaver-Brooks provides several integrated and/or stand-alone control solutions that offer the flexibility to reduce not only the
fuel costs, but the total energy and maintenance costs of the system.
Integrated Falcon Control
For ease of installation and reduction of commissioning and start-up time, use the
integrated Falcon control system that comes standard on every ClearFire® boiler.
Falcon provides a wide range of flexibility to control up to eight boilers in a leadlag operation. Modulate outside air dampers and control boiler pumps or isolation
valves. Lead/lag control is configured to modulate only the correct number of
boilers in the most efficient manner possible while eliminating short cycling.
Features
} Lead lag up
} Intuitive color
} Building Management
} Extensive trending and
} Outdoor reset
} Burner management
} Boiler Pump/Valve
} Damper interlock control
to eight boilers
touchscreen interface
System (BMS) interface
control
alarm diagnostics
Hydronic System Control
For systems requiring a more comprehensive control strategy, look no further
than Cleaver-Brooks Hydronic System Control (HSC). The HSC is an expandable,
multi-faceted control solution specifically engineered to handle any type of
heating system. This includes low-temperature (condensing), high-temperature
(non-condensing) or hybrid systems designed to leverage the advantages of
both technologies. The HSC can be applied to new or existing systems from any
manufacturer’s hot water boiler. The HSC is great for retrofit applications with an
existing non-condensing boiler where the customer can integrate condensing
technology for dramatic energy savings at a lower initial cost. It is also ideal for any
customer looking for the best return on investment, including a new installation.
Features
} Dual Independent PID
temperature setpoint
control
} Alarm history and
data logging
6
} Manages up to
} Interlock dampers, draft
} Variable Speed Drive (VSD) control
} Outdoor reset
} Building Management System
} Compatible with any
20 boilers
controls and isolation valves
(BMS) communication interface
of system and boiler pumps
manufacturer’s boilers
ClearFire®–LC Boiler Dimensions
and Ratings
Left Side View
Boilers
Front View
BOILER MODELS
ITEM
DIMENSIONS (inches)
Input Max. (BTU/hr)
CFLC4000
CFLC5000
CFLC6000
CFLC8000
CFLC10000
CFLC12000
4,000,000
5,000,000
6,000,000
8,000,000
10,000,000
12,000,000
A
Overall Height
96”
96”
106”
106”
126”
126”
B
Overall Width
48”
48”
57.5”
57.5”
70”
70”
C
Overall Depth
118”
118”
132”
132”
148”
148 ”
D
Casing Height
89”
89”
99”
99”
119”
119”
CONNECTIONS (inches)
AA
Water Return, 150# RF Flg
6”
6”
6”
6”
8”
8”
BB
Water Supply, 150# RF Flg
6”
6”
6”
6”
8”
8”
EE
Flue Gas, Nominal OD
14”
14”
16”
16”
20”
20”
FF
Combustion Air (Direct Vent)
10”
10”
12”
14”
16”
16”
GG
Gas Connection, NPT
2”
2”
2.5”
2.5”
2.5”
2.5”
HH
Condensate Drain, FPT
1.25”
1.25”
1.25”
1.25”
1.5”
1.5”
JJ
Relief Valve Outlet @ 160# Setting
2”
2”
2”
2”
2”
2”
MAWP (PSI)
160
160
160
160
160
160
MAWT (°F)
250
250
250
250
250
250
RATINGS
Weight w/o Water (Shipping) (lbs.)
7,450
7,800
9,800
10,500
15,300
16,100
Operating Weight (lbs.)
10,743
10,918
14,460
14,760
22,562
22,928
* For detailed dimensions and ratings, go to cleaverbrooks.com/CFLC
Total Integration goes far
beyond boilers.
For more than 80 years, Cleaver-Brooks has built a reputation for
innovation in the boiler solutions industry. We remain committed to
introducing technology and products that enable a more energy-efficient
and environmentally friendly generation of steam and hot water.
When you come to us for a condensing boiler solution, you can know
that each element is created to the highest standards and all will work
together seamlessly to give you a highly efficient and reliable solution for
protecting your boiler system. To learn more, please call or visit us online.
Packaged Boiler Systems
221 Law Street • Thomasville, GA 31792 USA
800-250-5883 • info@cleaverbrooks.com
cleaverbrooks.com
Boiler system icons are copyrights of Cleaver-Brooks, Inc.
Printed in the USA
©2013 Cleaver-Brooks, Inc
CB-8505
01/14
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising