Model ICB 100-800 HP Boilers
valves, atomizing air proving switch, low oil pressure switch, and
pressure gauge all integrally mounted on the unit.
• 400 – 800 hp. Fuel oil piping on the unit shall include oil metering
system, one (1) solenoid oil shut-off valve, one (1) motorized oil
valve with proof of closure switch, pressure relief valve, atomizing air
proving switch, and low oil pressure switch all integrally mounted on
the unit.
e. Oil Atomization Type — Select one of the following:
1) 100 – 150 hp. Burner shall include a complete mechanical oil atomizing
system and be of the pressure atomizing type.
2) 200 – 800 hp. Burner shall be a low pressure air atomizing type,
including a “shipped loose” air compressor assembly.
3. FUEL SERIES 200 — LIGHT OIL OR GAS FIRED
a. Burner Type — Select one of the following:
1) 100 – 150 hp. The burner, mounted at the front of the boiler, shall be a
combination pressure atomizing type for oil and high radiant multi-port
type for gas. The burner shall be approved for operation with either
CS12-48 Commercial No. 2 oil or natural gas.
2) 200 – 800 hp. The burner, mounted at the front of the boiler, shall be a
combination of low pressure air atomizing type for oil and high radiant
multi-port type for gas. The burner shall be approved for operation with
either CS12-48 Commercial No. 2 oil or natural gas.
b. Gas Pilot — The gas pilot shall be premix type with automatic electric
ignition. An electronic detector shall monitor the pilot so that the primary fuel
valve cannot open until flame has been established. The pilot train shall
include one (1) manual shut-off valve, solenoid valve, pressure regulator, and
one (1) plugged leakage test connection (Canada only).
c. Oil Burner
1) Oil Pump — An oil pump with a capacity of approximately twice the
maximum burning rate shall be included. Pump shall be motor driven and
shipped loose to be field installed near the oil storage tank. Oil pump
motor starter shall also be provided.
2) Oil Burner Piping
• Four-Pass — Select one of the following:
a. 100 – 150 hp. Fuel oil piping on the unit shall include oil pressure
regulating device, oil metering controls, two (2) solenoid oil shut-
off valves, and pressure gauge all integrally mounted on the unit.
b. 200 – 250 hp. Fuel oil piping on the unit shall include oil pressure
regulating device, oil metering controls, two (2) solenoid oil shut-
off valves, atomizing air proving switch, low oil pressure switch
and pressure gauge all integrally mounted on the unit.
c. 300 – 800 hp. Fuel oil piping on the unit shall include oil metering
system, one (1) solenoid oil shut- off valve, one (1) motorized oil
valve with proof of closure switch, pressure relief valve,
atomizing air proving switch, and low oil pressure switch all
integrally mounted on the unit.
• Three-Pass — Select one of the following:
Section A4-34 Rev. 02-08
Model ICB 100-800 HP Boilers
a. 100 – 150 hp. Fuel oil piping on the unit shall include oil pressure
regulating device, oil metering controls, two (2) solenoid oil shut-
off valves, and pressure gauge all integrally mounted on the unit.
b. 200 – 350 hp. Fuel oil piping on the unit shall include oil pressure
regulating device, oil metering controls, two (2) solenoid oil shut-
off valves, atomizing air proving switch, low oil pressure switch
and pressure gauge all integrally mounted on the unit.
c. 400 – 800 hp. Fuel oil piping on the unit shall include oil metering
system, one (1) solenoid oil shut- off valve, one (1) motorized oil
valve with proof of closure switch, pressure relief valve,
atomizing air proving switch, and low oil pressure switch all
integrally mounted on the unit.
3) Oil Atomization Type — Select one of the following:
• 100 – 150 hp. Burner shall include a complete mechanical oil
atomizing system and be of the pressure atomizing type.
• 200 – 800 hp. Burner shall be a low pressure air atomizing type,
including a “shipped loose” air compressor assembly.
d. Gas Burner Piping — Select one of the following:
1) 100 hp. Gas burner piping on all units shall include two (2) manual shut-
off valves, gas pressure regulator, one (1) motorized gas valve with proof
of closure switch, two (2) plugged leakage test connections, and high
and low gas pressure switches. The gas valves shall be wired to close
automatically in the event of power failure, flame failure, low water, or
any abnormal shutdown condition.
2) 125 – 150 hp. Gas burner piping on all units shall include two (2) manual
shut-off valves, gas pressure regulator, one (1) solenoid and one (1)
motorized gas valve with proof of closure switch, two (2) plugged
leakage test connections, and high and low gas pressure switches. The
gas valves shall be wired to close automatically in the event of power
failure, flame failure, low water, or any abnormal shutdown condition.
3) 300 – 350 hp. Gas burner piping on all units shall include two (2) manual
shut-off valves, gas pressure regulator, one (1) solenoid and one (1)
motorized gas valve with proof of closure switch, main gas vent valve,
two (2) plugged leakage test connections, and high and low gas pressure
switches. The gas valves shall be wired to close automatically in the
event of power failure, flame failure, low water, or any abnormal
shutdown condition.
4) 400 – 800 hp. Gas burner piping on all units shall include two (2) manual
shut-off valves, gas pressure regulator, two (2) motorized gas valves and
one (1) valve with proof of closure switch, main gas vent valve, two (2)
plugged leakage test connections, and high and low gas pressure
switches. The gas valves shall be wired to close automatically in the
event of power failure, flame failure, low water or any abnormal
shutdown condition.
E. Control Panel and Flame Safeguard Controller
1. Control Panel
A factory prewired control panel shall be supplied with the boiler/burner package.
Panel may be mounted on the burner or boiler.
Section A4-35 Rev. 02-08
Model ICB 100-800 HP Boilers
2. The panel will have a NEMA 1A rating and contain the flame safeguard
controller, burner motor starter, air compressor motor starter, oil metering pump
motor starter, control circuit transformer and fuses, selector switches, indicating
lights and terminal strips. Lights shall indicate load demand, flame failure, low
water, and fuel valve open.
3. The panel shall contain fuse protection for the burner motor, air compressor
motor, and oil metering pump.
4. The flame safeguard controller shall be a CB110 flame monitor with EPD170
program module. Flame detector shall be ultra-violet type.
2.4 Efficiency Guarantee
A. The boiler must be guaranteed to operate at a minimum fuel-to-steam efficiency of
_____ percent at 100 percent of rating when burning natural gas and _____ fuel-to-
steam efficiency at 100% firing rate when burning oil (Contact your local Cleaver-
Brooks Authorized Representative for efficiency details).
2.5 Warranty
A. All equipment is to be guaranteed against defects in materials and/or workmanship
for a period of 12 months from date of start-up or 18 months from date of shipment,
whichever comes first.
PART 3 EXECUTION
3.1 Shop Tests
A. The packaged boiler must receive factory tests to check the construction, controls,
and operation of the unit. All tests may be witnessed by the purchaser, if desired.
B. Start-Up Service
1. After boiler installation is completed, the manufacturer shall provide the services
of a field representative for starting the unit and training the operator at no
additional costs.
a. A factory approved and authorized start-up report shall be submitted to the
customer/user at the time of start-up.
Section A4-36 Rev. 02-08
Model ICB 100-800 HP Boilers
PART 1 GENERAL
Model ICB Hot Water Boiler (100 – 800 hp, 30 psig, 125 psig)
1.1 Boiler Characteristics (Hot Water)
A. The Hot Water Boiler shall be Cleaver-Brooks Model ICB, Fuel Series _____ (100,
200, 700), _____ hp designed for _____ psig (30, 125, or other psig hot water). The
maximum water temperature will be _____ degree F, and the maximum system
temperature drop will be _____ degree F.
B. The boiler shall have a maximum output of _____ Btu/hr, or _____ horsepower when
fired with CS 12-48 No. 2 oil and/or natural gas, _____ Btu/cu-ft. Electrical power
available will be _____ Volt _____ Phase _____ Cycle and 115/1/60 for the control
circuit.
PART 2 PRODUCTS
2.1 General Boiler Design
A. Number of Passes — Select one of the following:
• (Four-Pass) The boiler shall be a four-pass intercooled horizontal
firetube updraft boiler. It shall be mounted on a heavy steel frame with
forced draft burner and burner controls.
• (Three-Pass) The boiler shall be a three-pass intercooled horizontal
firetube updraft boiler. It shall be mounted on a heavy steel frame with
forced draft burner and burner controls.
1. Approvals: The complete burner/boiler package shall be approved as a unit by
Underwriters Laboratories Inc. and bear the UL/cUL label.
2. The boiler shall be completely preassembled and fire tested at the factory. The
unit shall be ready for immediate mounting on floor or simple foundation and
ready for attachment of water, steam, fuel, electrical, vent and blowdown
connections.
B. Boiler Shell (Hot Water)
1. The boiler shell must be constructed in accordance with ASME Boiler Code and
must receive authorized boiler inspection prior to shipment. A copy of the
inspection report shall be furnished to the purchaser.
2. The hot water return and outlet connections shall be located on the top center
line of the boiler. The boiler shall be designed to rapidly mix the return water with
the boiler water. Forced internal circulation shall be used.
3. A dip tube shall be included as an integral part of the water outlet.
4. Two lifting eyes shall be located on top of the boiler.
5. Front and rear doors on the boiler shall be davited.
6. The rear door shall be insulated with a blanket material and a steel covering to
give the surface a hard durable finish.
7. The boiler tubes shall not include turbulators, swirlers or other add-on
appurtenances.
Section A4-37 Rev. 02-08
