QUINCY HYDRONIC TECHNOLOGY SG-3 Guida all'installazione
Biasi SG Pro Series 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 installer, service
agency or the gas supplier.
Please Read Instructions Carefully
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Distributed By:
QUINCY HYDRONIC TECHNOLOGY, INC.
3560 LAFAYETTE RD
PORTSMOUTH, NH 03801
PHONE: 603-334-6400
FAX: 1-877-334-6401
WWW.QHTINC.COM
REV. 011117
If the information in this manual is not followed exactly, a fire explosion may
result causing property damage, personal injury or loss of life.
WARNING
DANGER
SG Pro Series
Packaged Boiler
SG/3 - SG/5
Boiler Manual And Installation
Instructions for Atmospheric Venting
BIASI SG Pro
Page 2 Biasi SG Pro Series
Biasi SG Pro Series Page 3
Dear Customer:
Thank you for buying a BIASI SG boiler.
The BIASI SG Pro is a cast iron, oil or gas fired hot water boiler, using the famous 3-pass design.
The boiler is light, compact, simple, rugged and engineered for maximum home heating efficiency.
We realize that it is not possible to answer all questions about the SG Pro-series boiler 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 or distributor if you are in question
about any aspect of your boiler's performance. Our main concern is that you are satisfied with your
boiler and its performance. We require that your contractor complete efficiency tests using
instruments.
The controls and accessories listed in this manual are intended to serve as guidelines rather than
specific recommendations. We realize that other makes and models of such 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 (Hydrolevel 3250) 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 SG Pro-series boilers are built in accordance with the ASME boiler and pressure vessel code,
and bear the "H" stamp. The BIASI SG Pro boiler has been tested to CSA standard 4.9.
This BIASI SG Pro boiler 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 or register on-
line at www.qhtinc.com/support/online-warranty-registration. The warranty will be void without your
boiler's serial numbers (located on the plate on the leg of the boiler), date of installation and the
name of your installer being on record in our files.
Thank you for purchasing our BIASI SG Pro series boiler. If you have questions or comments,
please don't hesitate to contact us immediately. Our goal is 100% customer satisfaction.
QHT inc.
Page 4 Biasi SG Pro Series
This installation manual is for the basic installation of a SG Pro series boiler for atmospheric
venting for oil and gas. If you are installing a direct vent system or please refer to its addendum in
conjunction with this manual to insure the proper installation of the boiler.
BIASI SG Pro-Series Section Page
Important Information &Warnings 5-6
General Information 17
Boiler Block Assembly &Explosion Diagram 28
Boiler Location 39
Installation of Boiler Trim Kit Components 410-12
Piping the Boiler 513
Intake Venting 614-15
Exhaust Venting 716
Common Exhaust Venting 7.1 16-17
Block Flue Switch 7.2 17
Gas Venting 7.3 18
Burner Setup 818
Oil 8.1 19
Gas 8.2 20
Gas Line Piping 921
Boiler Jacket Assembly 10 22
Control Panel 11 23
Control Panel Operation 11.1 23
Wiring 12
Wiring 12.1 24
Oil Diagrams 12.2 24-26
Gas Diagram 12.3 27-28
Priority Wiring 12.4 29
Commissioning the Boiler 13 30
Maintenance 14 31
Installer Notes 15 32
Homeowner Information 16 33
Notes: 34-36
Warranty Back Cover
Table of Contents
Biasi SG Pro Series Page 5
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 contractors, and only persons
knowledgeable in the layout and installation of heating systems should attempt the
installation of any 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 Technologies, 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:
National Fire Protection Association (NFPA)
Battery March Park
Quincy, Massachusetts, 02269
http://www.nfpa.org
American Gas Association (AGA)
Pleasant Valley Road
Cleveland, OH 44134
http://www.aga.org
A. ANSI/NFPA - #31 Installation of Oil Burning Equipment
B. ANSI/NFPA - #70 National Electric Code
C. ANSI/NFPA - #211 Chimneys and Vents
D. ANSI/NFPA - #Z223.1 National Fuel Gas Code
E. ANSI/NFPA - Domestic Gas Conversion Burner
Page 6 Biasi SG Pro Series
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. 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 of CO occur, or if any of the signs of carbon monoxide are present,
VACATE THE PREMISES IMMEDIATELY AND CONTACT A QUALIFIED HEATING
SERVICE COMPANY OR THE GAS COMPANY OR THE FIRE DEPARTMENT.
ONLY QUALIFIED, LICENSED SERVICE CONTRACTORS SHOULD PERFORM WORK ON
YOUR BIASI SG PRO SERIES BOILER.
WARNING
Hot gasses from appliance, venting system
pipes or chimney, escaping into the living
space.
Flames coming out around the appliance.
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.
Biasi SG Pro Series Page 7
The BIASI SG Pro-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 seven 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 LISTED BOILER SYSTEM COMPONENTS AND SPECIFIED OIL
AND GAS BURNER COMPONENTS SUPPLIED WITH THE BIASI SG BOILER.
1. General Information
Boiler
Model
Heating
Capacity
Gross Input Burner
Capacity Net Output Efficiency Water
Content Length (L) Weight
MBH GPH MBH NET MBH %GALS. IN. LBS
SG-3108.8 .91 125.0 94.6 87.0 7.7 21.8 341
SG-4146.2 1.22 168.0 127.1 87.0 9.6 26.9 418
SG-5182.7 1.52 210.0 158.9 87.0 11.3 32.1 506
Maximum Water Working Pressure 50 psi Maximum Relief Valve is 50 psi at 500 MBH
1—Control panel with temperature
and pressure gauges and Hydrostat
touch panel limit control
1—Immersion well
1—30 PSI pressure relief valve
1—¾” Boiler drain
1—¾” X 3” Nipple
1—¾” 90° Elbow
1—Hinge Assembly
1—12”x12” Cera-fiber Blanket
1—Burner mounting hardware
1—Double acting barometric damper
(gas systems only)
Page 8 Biasi SG Pro Series
The SG Pro Series packaged boilers are shipped from the factory as an assembled
boiler. If the block needs to be split into sections for ease of delivery, please order a standard
knocked down SG Pro Series boiler and request it to be split:
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 scraping the port very lightly. Wipe the push nipples and nipple ports with
a clean cloth. Apply a film of sealing compound to both the nipple and port. Install the nipple in
the port and then seat it by hitting with a hammer cushioned with a block of wood. Apply boiler
mastic to one section only and slide sections together. Install the four draw rods and draw the
sections together evenly (measure with ruler or tape measure). 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
After assembly of boiler block, seal all joints with boiler gasket and remove boards. NOTE:
When cutting off excess length of draw rods, allow enough length to install boiler jacket on the
draw rods.
2. Boiler Block Assembly
BIASI SG-Series Components & Parts
2) Door Alignment Pin 9) Lower Front Bushing
21) Hinge Stud, Nut and Washer 10) Front Tapping Gasket
3) Upper Hinge Element 11) Upper Front Bushing
19) SG Front Block Section 12) Lower Rear Bushing
5) SG Rear Block Section 13) Draw Rod
6) SG Intermediate Block Section 19) SG Door
Biasi SG Pro Series Page 9
If the boiler is to be installed in "direct vent" configuration, please refer
to the QHT Direct Vent Addendum supplied with the Direct Vent Kit
available at www.qhtinc.com.
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, ANSIZ223.1, 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 clearance 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” inches 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. The length of the
chimney connector may not exceed a distance of chimney height less ten feet. If 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
Page 10 Biasi SG Pro Series
USE ONLY THE LISTED BOILER SYSTEM COMPONENTS AND
SPECIFIED OIL AND GAS BURNER COMPONENTS SUPPLIED WITH
THE BIASI SG PRO BOILER.
Please refer to figures below for Barometric Damper location (gas burners only) and to the
right for the proper location of the trim components.
Barometric Damper w/
Manual Reset Spill Switch
(Gas Burner Only)
BIASI SG
T-handle
Gas Cock
Alternative
Location
Drip Leg
Gas Train Positive Pressure
Gas Fired
4.1 Boiler Trim Components
Union
Trim Kit Components:
1 — Control panel with temperature
and pressure gauges and
Hydrolevel Touch Panel control
1 — Immersion well
1 — 30 PSI pressure relief valve
1 — ¾” Boiler drain
1 — 12”x12” Cera-fiber blanket
1 — Burner mounting hardware
1 — ¾” X 3” Nipple
1 — ¾” 90° Elbow
1 — Double Acting Barometric
Damper with Manual Reset Spill
Switch (Gas systems only)
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