Biasi B3 Specification sheet

Page 1
WHAT TO DO IF YOU SMELL GAS
· Do not try to light any appliance
· Do not touch any electric switch; do not use any phone in your
building
· Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
· If you can not reach your gas supplier call the fire department
Installation and service must be performed by a qualified licensed
installer, service agency or the gas supplier.
Please Read Instructions Carefully
Save for Future Reference
Manufactured by:
Biasi S.p.A.
Verona, Italy
Distributed By:
QHT, INC.
QUINCY HYDRONIC TECHNOLOGY, INC.
3560 LAFAYETTE ROAD
BLDG. 2, UNIT A
PORTSMOUTH, NH 03801
PHONE: [phone]
FAX: [phone]
REV. 111011
If the information in this manual is not followed exactly, a fire or
explosion may result causing property damage, personal injury or loss of
life.
WARNING
DANGER
B10 SERIES BOILER
B3-B9
Boiler Manual And Installation
Instructions for Atmospheric Venting

Page 2
Dear Customer:
Thank you for buying a B10 Series Boiler from Quincy Hydronic Technology.
The B10 Series Boiler is a cast iron, oil or gas fired hot water boiler, using the famous
BIASI B10 (3-pass) design. The boiler is light, compact, simple, rugged and engineered
for maximum home heating efficiency. The B10 series boiler is Energy Star listed with
AFUE efficiencies up to 87% on oil and 85.5% on direct vent gas.
We realize that it is not possible to answer all questions about the B10 series boiler
system in this manual. Reading this installation manual does not make the reader an
expert in all aspects of installation and operation, and does not replace the need for a
qualified licensed heating contractor. We urge you to contact your installing
contractor ,dealer, or us if you have any question about any aspect of your boiler's
performance. Our main concern is that you are satisfied with the B10 installation and its
performance. We require your contractor complete efficiency tests using appropriate
instruments and record the burner performance on page 29.
The controls and accessories listed in this manual are intended to serve as guidelines
rather than specific recommendations. We realize other makes and models of the
specified devices are available and can be used as successfully as those we specify.
The installing contractor is the best judge of a system's specific requirements, as well as
the local availability of certain makes and models of controls and accessories. The
preceding does not apply, however, to the equipment that comes with every boiler, such
as the overheat control (L4006A, 7248, Hydrostat, or Aquasmart) and pressure relief
valve. The installation of the specific devices supplied with every boiler is
absolutely necessary to the safe operation of the boiler and protection of the
heating system.
All BIASI Boiler blocks are built in accordance with the ASME boiler and pressure
vessel code, and bear the "H" stamp. The entire range of applications for the B10
Series Boiler have been tested to CAN/CGA B149 and are ULC compliant.
This B10 Boiler block has a limited lifetime warranty (refer to back of manual), a copy of
which is provided with the boiler. Please be sure to return the warranty registration card
as the warranty will be void without your boiler's serial number (located on the plate on
the front leg of the boiler), date of installation and the name of your installer.
Thank you for purchasing our B10 Series Boiler. If you have questions or comments,
please don't hesitate to contact us immediately. Our goal is 100% customer satisfaction.
Sincerely,
JimQuincy
President
Quincy Hydronic Technology Inc.

Page 3
TABLE OF CONTENTS
QHT BIASI B10 Series Section Page
Important Information &
Warnings 4,5,6
General Information 1 7
Boiler Block Assembly &
Explosion Diagram 2 8
Boiler Location 3 9
Installation of Boiler
Trim Kit Components 4 10,11
Piping the Boiler 5 12
Intake Venting 6 13,14
Exhaust Venting 7 15
Common Exhaust Venting 7.1 16
Gas Venting 7.2 16
Burner Setup 8 17
Oil 8.1 18
Gas 8.2 19
Gas Line Piping 9 20
Boiler Jacket Assembly 10 21
Wiring 11 22-27
Oil Diagrams 11.1 23-25
Gas Diagrams 11.2 26-27
Commissioning the Boiler 12 28
Maintenance 13 28
Installer Notes 14 29
Warranty Inside back cover
This installation manual is for the basic installation of a B10 series boiler for
atmospheric venting of oil and gas. If you are installing a direct vent
system, please refer to its addendum to be used in conjunction with this
manual to insure the proper installation of the boiler system.

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IMPORTANT INFORMATION
Please read this page carefully.
 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 licensed heating contractors,
and only persons knowledgeable in the layout and installation of heating
systems should attempt the installation of the B10 boiler. It is the
responsibility of the installing contractor to see that all controls are correctly
installed and operating properly when the installation is completed.
 Do not burn volatile garbage, gasoline, naphtha or other flammable liquids
other than No. 2 fuel oil. All flammable liquids (especially gasoline), chemicals,
rags, paper, wood scraps, debris, etc., should be kept away from the boiler at
all times. Keep the boiler area clean and free of all fire hazards.
 Please read the literature and warranties supplied by the manufacturers of the
various accessory equipment. This equipment is warranted by the respective
manufacturers, not by Quincy Hydronic Technology, Inc. Each piece of
equipment must be installed and used according to the recommendations of
the manufacturer.
Codes and Regulations:
Installation of the boiler, burner, oil tank and related equipment must conform to
national, state and local regulating agencies and codes applicable to the installation of
the equipment. In the absence of local requirements, the following codes apply:
A. NFPA - #31 Installation of Oil Burning Equipment
B. NFPA - #70 National Electric Code
C. NFPA - #211 Chimneys and Vents
D. ANSI - #Z223.1 National Fuel Gas Code
E. ANSI - Domestic Gas Conversion Burner
F. CAN/CGA - B149 Installation Codes
G. ANSI - CSD-1
H. CSA -C22.1 Canadian Electrical Code, Part1
The above codes are available from:
National Fire Protection Association
(NFPA)
Battery March Park
Quincy, MA 02269
http://www.nfpa.org
CSA International
8501 East Pleasant Valley Road
Cleveland, OH 44134
http://www.csa-international.org

Page 5
Any appliance that burns natural gas, propane gas, fuel oil, 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. CO is lighter than air and thus
may travel throughout the building.
BRIEF EXPOSURE TO HIGH CONCENTRATIONS OF CO, OR
PROLONGED EXPOSURE TO LESSER AMOUNTS OF CO MAY
RESULT IN CARBON MONOXIDE POISONING. EXPOSURE CAN
BE FATAL AND EXPOSURE TO HIGH CONCENTRATIONS MAY
RESULT IN THE SUDDEN ONSET OF SYMPTOMS INCLUDING
UNCONSCIOUSNESS.
Symptoms of CO poisoning include the following:
dizziness vision problems shortness of breath
headache loss of muscle control unclear thinking
nausea weakness unconsciousness
The symptoms of CO poisoning are often confused with those of influenza, and the
highest incidence of poisoning occurs at the onset of cold weather or during flu
season. A victim may not experience any symptoms, only one symptom, or a few
symptoms. Suspect the presence of carbon monoxide if symptoms tend to
disappear when you leave your home.
The following signs may indicate the presence of carbon monoxide:
IF ANY OF THE SYMPTOMS OCCUR, OR IF ANY OF THE SIGNS OF CARBON
MONOXIDE ARE PRESENT,VACATE THE PREMISES IMMEDIATELY AND
CONTACT A QUALIFIED HEATING SERVICE COMPANY, THE GAS COMPANY
OR THE FIRE DEPARTMENT.
ONLY QUALIFIED, LICENSED SERVICE CONTRACTORS SHOULD PERFORM
WORK ON YOUR B10 BOILER.
WARNING
 Hot gasses from appliance, venting
system pipes or chimney, escaping
into the living space.
 Flames coming out around the appli-
ance.
 Yellow colored flames in the
appliance.
 Stale or smelly air.
 The presence of soot or carbon in or
around the appliance.
 Very high unexplained humidity
inside the building.

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TO START UP THE APPLIANCE
1. STOP! Read the safety information on the side of the boiler. DO NOT START
THE BOILER UNLESS ALL CLEANOUT DOORS ARE SECURED AND
SEALED. (Skip to step 9 for oil burning boilers)
2. Set thermostat to lowest setting
3. Turn off all electric power to the appliance
4. Do not attempt to light the burner by hand
5. Turn the manual shut off on the combination gas
valve clockwise to the off position.
6. Wait five minutes to clear out any gas.
Then smell for gas, including near the floor.
If you smell gas, STOP!
 Do not try to light any appliance
 Do not touch any electric switch; do not use any phone in your building
 Immediately call your gas supplier from a neighbor’s phone. Follow the
gas supplier’s instructions.
 If you can not reach your gas supplier call the fire department
7. If you don’t smell gas, go to the next step.
8. Return the manual valve on the combination gas valve to the on position by
reversing step “5”.
9. Turn on all electric power to the appliance.
10.Set thermostat to the desired setting.
11.If the burner fails to light you may press the reset button once. If the appliance
will not operate, follow the instructions “To Turn Off Gas To Appliance” and call
your service technician or gas supplier. DO NOT ATTEMPT TO START THE
BURNER WHEN EXCESS GAS HAS ACCUMULATED, WHEN THE UNIT IS
FULL OF VAPOR, OR WHEN THE COMBUSTION CHAMBER IS VERY HOT.
NOTE: ALWAYS KEEP THE MANUAL FUEL SUPPLY VALVE SHUT OFF IF THE
BURNER IS SHUT DOWN FOR AN EXTENDED PERIOD OF TIME.
TO TURN OFF GAS APPLIANCE
1. Set the thermostat to the lowest setting.
2. Turn off electric power to the appliance if service is to be performed.
3. Turn the gas control valve to the off position.
Homeowner Information for Gas

Page 7
The B10 series boilers are wet base design, sectional, cast-iron boilers for
forced hot water heating systems. The boilers are shipped pre-assembled from the
factory in lengths from three to nine sections. They are designed for firing with oil or
gas power burners, which are packed separately along with the jacket and controls
for shipping purposes.
When the boiler is received, check the contents to ensure that there is no
shortage or damage to any part of the boiler system. With every boiler you should
receive a boiler block, jacket, trim kit and a burner (oil or gas).
Trim Kit Components
USE ONLY THE UL LISTED BOILER COMPONENTS AND
UL/CSA LISTED OIL OR GAS BURNER COMPONENTS SUPPLIED WITH
THE VEGA B10 BOILER SYSTEM.
1 - Honeywell L4006A, 7248,
Hydrostat or Aquasmart high
limit
1 – Immersion well
1 – ¾” X 3” Nipple
1 – Combo pressure/temp gauge
1 – 30 PSI Pressure relief valve
1 – ¾” Boiler drain
1 – Cera-fiber Pad for floor of
combustion chamber
2 – ¾” Plugs
1 – ¼” X ½” Bushing
1 – ¾” 90° Elbow
1 - Double acting barometric
damper with manual reset
spill switch
(Gas systems only)
1. General Information
All dimensions are in inches. L 18 3/4
29 3/4
Boiler
Model Heating Capacity Flue Gas Resistance Oil AFUE Efficiency Water Content Length (L) Weight
MBH GPH- Oil MBH- Gas OIL GAS IN. W.C. % Chim D.V. GALS. IN. LBS
B-3 67 0.55 80 58 60 0.03 86.6 84.4 85.5 3.5 15.5 249
B-4 110 0.90 115 96 84 0.04 86.5 84.0 85.5 4.7 19.5 308
B-5 124 1.00 140 108 103 0.06 87.2 83.8 85 5.7 23.5 367
B-6 153 1.25 175 133 129 0.07 86.7 83.6 85.5 6.7 27.5 427
B-7 185 1.50 215 161 157 0.08 86.8 83.0 NA 7.7 31.5 486
B-8 211 1.80 257 183 189 0.10 86.8 83.6 NA 8.8 35.5 546
B-9 257 2.10 298 223 219 0.12 86.5 83.5 9.9 39.5 606
Maximum Water Working Pressure 58 psi Maximum Relief Valve is 30 psi at 500 MBH
Gross Input Burner
Capacity Net Output Gas AFUE Efficiency

Page 8
All B10 Series Boilers are shipped from the factory in assembled boiler
blocks. If, however, the block needs to be split into sections for ease of delivery,
please read the following:
To assemble split blocks, move sections into parallel and facing each other.
Sections may be slid along boards placed underneath the sections. Inspect nipple
ports for damage or burrs. Remove any burrs by sanding the port very lightly. Wipe
the push nipples and nipple ports with a clean cloth. Apply a film of nipple compound
to both the nipple and port. Install the nipple in the port and then seal by tapping with
a hammer cushioned with a block of wood. Apply section sealant to grooves in one
section only and slide sections together. Install the four draw rods and draw the
sections together evenly (measure with yardstick). Draw the sections together until
sections make iron-to-iron contact at a point around the top and bottom ports of each
section. DO NOT OVER TIGHTEN DRAW RODS
NOTE: When cutting off excess length of draw rods, allow enough length to install
boiler jacket on the draw rods.
2. Boiler Block Assembly
Boiler Components & Parts
B 10 Series
Boiler Block Assembly:
1 Front Section
2 Rear Section
3 Intermediate Section
4 Steel Push Nipples
5 Tie Rod
6 Tie Rod Nut
7 Tie Rod Washer
8 3/4” X 1 1/4" Bushing
9 Bushing gasket
10 1/2" X 1 1/4" Bushing
11 Boiler Swing Door
12 Upper Cleanout Plate Insulation
13 Upper Cleanout Plate Gasket
14 Upper Cleanout Plate Backing
15 Burner Door Insulation
16 Door/Cleanout Stud (Qty 7)
17 Burner Door Gasket
18 3/4" Plug (Sight Hole)
19 Boiler Door Hinge (4 pieces)
20 Hinge Pin (Qty 6)
21 Boiler Body Hinge Bolts (Qty 2)
22 Door Hinge Mounting Bolts (Qty 2)
23 6“ Boiler Breeching
24 Upper Cleanout Plate

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If the boiler is to be installed in a "direct vent" configuration, please refer to the
B10 Direct Vent Addendum supplied with the Direct Vent Kit.
PROVISIONS FOR COMBUSTION AIR AND VENTILATION AIR MUST BE IN
ACCORDANCE WITH SECTION 5.3, “AIR FOR COMBUSTION AND
VENTILATION”, OF THE NATIONAL FUEL GAS CODE, ANSI Z223.1, OR
APPLICABLE PROVISIONS OF THE LOCAL BUILDING CODES. DO NOT
INSTALL THE BOILER UNTIL PROPER COMBUSTION AIR HAS BEEN
ARRANGED.
3. Boiler Location
The following are the minimum clearances to construction or combustible materials:
1. 9” from the top, sides,
and rear of the boiler.
2. 18” from the flue pipe in
any direction.
3. 24” from the front of the
boiler.
DANGER
The boiler must be located on a non-combustible floor. A smooth, level
concrete floor is recommended. Locate the boiler as close as possible to the
chimney. If the boiler is installed on combustible flooring, consult local authorities for
proper method of covering floor. The boiler must not be installed on carpeting.
Caution: Do not store or use flammable materials, chemicals or
flammable liquids, especially gasoline, in the vicinity of this heating
appliance.
WARNING
Boiler is certified as an indoor appliance. Do not install boiler outdoors or locate
where it will be exposed to freezing temperatures or in a unconditioned/unheated
space.
24”
FRONT
9” TOP
9”
SIDE 9”
REAR

Page 10
USE ONLY THE ULC LISTED BOILER COMPONENTS AND
UL/CSA LISTED OIL OR GAS BURNER COMPONENTS SUPPLIED WITH
THE B10 SERIES BOILER SYSTEM.
Please refer to the figure below for Barometric Damper location for either oil or
gas and to the next page for the proper location of the trim components.
4. Installation of Boiler Trim Components
NOTE: See Page 19 for
available gas burners in
North America
BIAS
Heat Wise
BAROMETRIC DAMPER
WITH MANUAL RESET
SPILL SWITCH
ALTERNATIVE
DAMPER LOCATION
BIASI B10
POWER GAS
BURNER
GAS COCK
DRIP LEG
UNION
GAS TRAIN
Trim Kit Components
1 - Honeywell L4006A, 7248,
Hydrostat or Aquasmart high
limit
1 – Combo pressure/temp gauge
1 – ¾” X 3” Nipple
1 – 30 PSI pressure relief valve
1 – ¾” Boiler drain
1 – Cera-fiber Pad for bottom of the
combustion chamber
1– ¼” X ½” Bushing
2 – ¾” Plugs
1 – ¾” 90° Elbow
1 – Immersion well
1- Double acting barometric
damper with manual reset spill
switch (Gas systems only)