Tubing, Condensate............................. .. 191746 20.. .. Tubing, Pressure.................................. .. 191562 21 .. .. U-Bolt Assembly.................................. .. 191938 22.. .. Valve Drain........................................... ... 26273 23 .. .. Vent Assembly..................................... .. 210494 24 .. .. Vent Flange.......................................... .191685-5 25 .. .. Washer, Plain....................................... .76820-18 26 .. ..

When desired adjustments are complete, reinstall the cap on the gas valve. CO readings should be less than 200 ppm. Start Up Note: There will be a time delay between adjustments on the gas valve and the response of the CO2 measuring instrument. Adjust the settings in small increments and allow the combustion readings to stabilize for at least 3 minutes before readjusting. High Fire CO2 Settings NATURAL GAS 8.5 - 9.0% CO2 PROPANE GAS 9.5 - 10.5% CO2 Low Fire CO2 Settings NATURAL GAS 6.5 - 7.5% CO

WC, and is self-adjusting for altitudes up to 6,000 feet all while providing low NOx emissions that meet or exceed the most stringent standards Heavy-duty ASME 160 psi copper finned tube heat exchanger—Vertical, straight tube, multi-pass design surrounds the burner with a 360° wall of copper finned tubing, making the entire heat exchanger immune to thermal shock The sealed heat exchanger flue collection system is constructed of AL29-4C stainless steel that is immune to corrosive flue gases C D B

5510 (1/01) BRYAN STEAM Compact Boiler Feed Systems Capacities from 20 to 80 boiler HP for 15 through 150 PSI boilers The Bryan compact boiler feed system requires a minimal amount of boiler room space while providing many of the same rugged features as competitive stand-mounted feed systems. Performance Features • Designed to feed 15 through 150 PSI design boilers • Atmospheric tank built from heavy 1/4" minimum steel thickness • Tank sizes from 20 to 80 gallons • Designed to feed 20 t

NO.: FORM NO.: 2178 BRYAN BOILERS DR SERIES FORCED DRAFT STEAM BOILERS REVERSE CONSTRUCTION Form # >> 2178 Date >> 2/20/04 BOILER MODEL DR250 DR350 DR450 DR650 DR850 INPUT MBH 250 350 450 650 850 (KW) 73.2 102.5 131.8 190.4 249.0 OUTPUT MBH 200 280 360 520 680 (KW) 58.6 82.0 105.5 152.4 199.2 BOILER HORSEPOWER HP 6 8 10 15 20 (KW) 58.6 82.0 98.0 147.0 196.0 TUBE DIAMETER INCHES 1.00 1.00 1.00 1.00 1.00 (CM) 2.54 2.54 2.54 2.54 2.54 NUMBER OF TUBES 18 18 18 29 29 PRESSURE VES

WARNING THE MAIN MANUAL GAS SHUT-OFF VALVE MUST HAVE BEEN CLOSED FOR AT LEAST FIVE (5) MINUTES BEFORE LIGHTING. This waiting period is an important safety step. Its purpose is to permit gas that might have accumulated in the combustion chamber to clear. IF YOU DETECT GAS AT THE END OF THE PERIOD DO NOT PROCEED WITH LIGHTING. RECOGNIZE THAT GAS ODOR, EVEN IF IT SEEMS WEAK, MAY INDICATE PRESENCE OF ACCUMULATED GAS SOMEPLACE IN THE AREA WITH A RISK OF FIRE OR EXPLOSION. WARNING THERE IS A RISK IN U

Ensure there is the proper amount of air to the burner. Flame lifting from the burner is caused by too much air to the burner. The burners must be inspected by a qualified service technician at least once a year. DO NOT STORE COMBUSTIBLE MATERIALS, GASOLINE, OR OTHER FLAMMABLE VAPORS, LIQUIDS IN THE AREA OF THE APPLIANCE. NONCOMPLIANCE MAY RESULT IN FIRE OR EXPLOSION. DO NOT OBSTRUCT THE FLOW OF COMBUSTION OR VENTILATION AIR TO THE APPLIANCE. CHEMICAL VAPOR CORROSION Boiler corrosion and compone

CONSULT FACTORY FOR CERTIFIED DIMENSIONS. 5. ALL FLANGES ARE 150# UNLESS OTHERWISE NOTED, FLANGES TO STRADDLE CENTER LINE. PLAN VIEW FR°NT VIEW RIGHT SIDE VIEW REAR VIEW 1. PROBE TYPE AUX. L.W.C.O. 6. JACKET ACCESS PANELS 11. DRAIN/ BLOWDOWN - 1" NPT 16. HEIGHT OVER JACKET 2. FORCED DRAFT BURNER 7. PRESSURE GAUGE 12. BURNER CENTER LINE 17. HEIGHT OVER SUPPLY 3. RELIEF VALVE 8. CLNOUT./INSP. OPNG.-1 1/2"NPT 13. OIL PUMP LOCATION 18. MINIMUM SAFE WATER LEVEL 4. ASME NAMEPLATE 9. ELEC. ENCLO

Chili Ave., Peru, Indiana 46970 U.S.A. Phone:765-473-6651 • Internet:Fax:765-473-3074 • E-mail: bryanboilers@iquest.net ©2000 Bryan Steam LLC 50-2517D

Chili Ave., Peru, Indiana 46970 U.S.A. Phone:765-473-6651 • Internet:Fax:765-473-3074 • E-mail: bryanboilers@iquest.net ©2000 Bryan Steam LLC 50-2517D