Direct Venting Systems for B-10 and SG Oil Fired Boilers From QHT INC. Direct Vent Addendum - Oil For use in conjunction with B-10, or SG atmospheric venting manuals QHT DV– OIL Please Read Instructions Carefully Save for Future Reference WARNING If the information in this manual is not followed exactly, a fire explosion may result causing property damage, personal injury or loss of life.
TABLE OF CONTENTS QHT INC. OIL DIRECT VENT PACKAGES Important Info & Warnings General Information & Installation Explosions Section Page 1-3 1 4-5 2 Vent System Installation External Clearances Clearances to Combustibles DVH-5 System Installation of Make-up Air 2.1 2.2 6 6 7 8 9 Burner Setup Installations B-10 Burner Setup SG Burner Setup 3 3.1 3.
IMPORTANT INFORMATION ALL BOILERS MUST BE INSTALLED IN ACCORDANCE WITH NATIONAL, STATE AND LOCAL PLUMBING, HEATING AND ELECTRICAL CODES AND ORDINANCES, AS WELL AS THE REGULATIONS OF THE SERVING ELECTRICAL, WATER AND GAS UTILITIES. All systems should be designed by competent contractors, and only persons knowledgeable in the layout and installation of heating systems should attempt the installation of any boiler.
WARNING • • • • • • • • ALL BOILERS MUST BE INSTALLED IN ACCORDANCE WITH NATIONAL, STATE AND LOCAL PLUMBING, HEATING AND ELECTRICAL CODES AND ORDINANCES, AS WELL AS THE REGULATIONS OF THE SERVING ELECTRICAL, WATER AND GAS UTILITIES. Improper installation, adjustment, or maintenance of this boiler can cause property damage, personal injury or death. Due to this fact only experienced technicians and installers may install or adjust BIASI boilers.
WARNING Any appliance that burns natural gas, propane gas, fuel oil, wood or coal is capable of producing carbon monoxide (CO). Carbon Monoxide (CO) is a gas which is odorless, colorless and tasteless but is very toxic. If your BIASI boiler is not working properly, or is not vented properly, dangerous levels of CO may accumulate. CO is lighter than air and thus may travel throughout the building.
1. General Information The QHT Direct Vent components have been designed and packaged so that the Biasi B-10 and SG boilers can be directly vented to the outside. Properly maintained, these boiler systems are unsurpassed in efficiency and will provide years of trouble-free operation. In addition to the standard Biasi boiler package, the Direct Vent Package is supplied with a kit containing the standard make-up air and appropriate exhaust system piping and hoods for your application.
QHT DIRECT VENT OIL KITS DVH-5 Vent System Apply 5” X 2’ insulation sleeve from hood connection down over exhaust elbow before attaching S.S. Flex pipe.
2. Installation of DV Hood CAUTION: EXTERNAL VENT SURFACES ARE HOT. NOTE: USE ONLY LISTED COMPONENTS SUPPLIED WITH THE BOILER. SURFACE DISCOLORATION OF THE BUILDING MAY OCCUR DUE TO IMPROPER BOILER/BURNER ADJUSTMENT. QHT WILL NOT ACCEPT RESPONSIBILITY OR LIABILITY FOR SUCH DISCOLORATION. W S N E The Exhaust Hood must be installed on the leeward side of house and conform to the following guidelines: 1.
NOTE The boiler shall be placed so that the vent pipe is as short as practical. The VENT HOOD must be installed at least one foot above ground level or normal snow accumulation level in an area which is free of obstruction at all times. The Vent hood should be installed on the leeward side of the house out of the wind. Outside air must be ducted directly to the burner through the hood unit supplied. The Direct Vent System must be gas tight. CLEARANCES TO COMBUSTIBLES SYSTEM OPERATING TEMP.
2.1 Exhaust Pipe System The B10/SG Direct Vent Systems must be installed where provisions do not exist for the ducting of combustion by products to the outside. The direct vent connector shall not pass through any floor or ceiling. The burner exhaust must be ducted directly to the vent hood through listed exhaust pipes provided. The exhaust pipe throughout it's entire length must be readily accessible for inspection, cleaning and replacement.
2.2 Installation of Make-up Combustion Air NOTICE Do not operate the burner with air intake disconnected. For DVH kits: 4. 5. 6. 7. 8. 9. Use 4 inch diameter flex pipe that is provided in the kit or a comparable single wall metal pipe. The maximum allowable length of intake pipe is ten feet not including elbows. Begin installing the 4” tee to the burner (Riello and Heat Wise require the supplied 3” to 4” increaser to be installed first). Secure all joints on the intake with three screws each.
3. Burner Setup In all boilers, regardless of fuel being burnt or configuration, a 10” X 10” Cerafiber pad should be installed under the flame. This pad is not for acoustic purposes, it is to keep the area under the nozzle warm to prevent flame out. Good, reliable operation with a minimum of service starts with attention to the small details: 1. Setting the nozzle position and electrodes "by the book" using the manufacturer's gauges. 2. Installing a quality micron filter at the burner. 3.
3.1 B-10 Burner Setup BURNER MANUFACTURER Beckett AFII - 150 (NEC 301, 302, 303) , NX (NEC 1101, 1102, 1103) Boiler Model Burner Model Firing Rate Insertion Depth Nozzle Spray Pattern Pump Pressure Head Type Head Position Air Setting B10 - 3* NEC - 1102 0.55 3.5” .40 X 60o hollow 180 psi 6 slot 1.25 N/A BURNER MANUFACTURER BF3 and BF5 Boiler Model Burner Model Firing Rate Insertion Depth Nozzle Spray Pattern Pump Pressure Turbulator Air Gate B10-3 BF-3 0.55 3.0” .4 X 80 W 180 psi 2 3.
3.2 SG Burner Setup BURNER MANUFACTURER NX (NEC 1201, 1202) Boiler Model Burner Model Firing Rate Insertion Depth Nozzle Spray Pattern Pump Pressure Head Type Head Position SG-2* NEC - 1201 0.65 3.5” .50 X 60o hollow 180 psi 6 slot 1.50 BURNER MANUFACTURER BF3 and BF5 Boiler Model Burner Model Firing Rate Insertion Depth Nozzle Spray Pattern Pump Pressure Turbulator Air Gate SG-2 BF-3 0.65 5.0" .55 X 70 solid 145 psi 0 4.5 BURNER MANUFACTURER Pioneer Boiler Model SG-2 Burner Model P-1 FV .
4. Wiring The electricity to the boiler shall come from a dedicated breaker in the electric service box. A service switch should be mounted on the side of the boiler so the burner technician can service the burner and controls. The electrical wiring should be routed so as not to interfere with normal servicing of the boiler.
GWRB GWRB G T T F F 14 Postpurge safety limit set to 210 with a 10 F diff. L 4006A L 4006A Operating limit set at 180 F 30 F Diff. X1 L2 CF OPTIONAL: CHECK LOCAL CODES LO-WATER CUTOFF X2 SR 301 L1 L2 N T2T T L3 N FIRE - O - MATIC L1 N T1T T L2 (NEUTRAL) L1 (HOT) GND T3T 120 VAC 15 AMP Breaker DHW CONTROL Note 2: All wiring must be done in accordance with applicable state, local and national codes. Use only copper conductors.
4.
Riello Burner with post-purge control multi-zone, control wiring 4.
4. Wiring GWRB GWRB G Red W B T T F F Honeywell burner control model 7184 p L 4006A Operating limit set at 180 F 30 F Diff. L 4006A Postpurge safety limit set to 210 with a 10 F diff. ON/OFF SWITCH X2 X1 LO-WATER CUTOFF CF SR 301 L2 OPTIONAL: CHECK LOCAL CODES L1 T T2T T L2 N T1T L1 N L3 N FIRE - O - MATIC T3T GND L1 (HOT) L2 (NEUTRAL) DHW CONTROL 120 VAC 15 AMP Breaker Note 2: All wiring must be done in accordance with applicable state, local and national codes.
5. System Start-up “For Your Safety Read Before Operating” WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. WARNING: Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Refer to the user’s information manual provided with this boiler.
5. System Start-up Cont. 5) Smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information above on this label. If you don’t smell gas, go to the next step. 6) Turn on all electric power to the appliance. 7) Set thermostat to the desired setting. 8) Once the system is lit, inspect the entire installation. 9) Make sure the pressure in the boiler is stable. 10) Test both 4006A high limits by lowering their set points below the temperature of the boiler one at a time.
7. Service & Maintenance In order to ensure that the boiler is operating properly, it should be inspected annually at the beginning of the heating season by a qualified service technician. Failure to do regular maintenance on the boiler, could result in a loss of system efficiency as well as equipment failure. 1) Turn off all electrical power to the boiler before servicing any part of the boiler. 2) During the inspection process, the technician should inspect and correct problems that the owner has noted.
