QHT Air Compressor User manual

DO NOT store or use gasoline or other flammable vapors or liquids in the vicinity of this or
any other appliance.
WHAT TO DO IF YOU SMELL GAS VAPORS
• Do not try to light any appliance
• Do not touch any electric switch; do not use any phone in you r building
• Immediately call your gas supplier from a neighbors phone.
• 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
Save for Future Reference
QUINCY HYDRONIC TECHNOLOGY, INC.
3560 LAFAYETTE RD
PORTSMOUTH, NH 03801
PHONE: [phone]
FAX: [phone]
REV. F
Direct Venting Systems for B-10 and
SG Oil Fired Boilers From QHT INC.
If the information in this manual is not followed exactly, a fire explosion may
result causing property damage, personal injury or loss of life.
Direct Vent Addendum - Oil
For use in conjunction with B-10, or SG atmospheric venting manuals
DANGER
WARNING
QHT DV– OIL

TABLE OF CONTENTS
QHT INC. OIL DIRECT VENT PACKAGES Section Page
Important Info & Warnings 1-3
General Information & Installation
Explosions 1 4-5
Vent System Installation 2 6
ExternalClearances 6
ClearancestoCombustibles 7
DVH-5 System 2.1 8
Installation of Make-up Air 2.2 9
Burner Setup Installations 3 10
B-10 Burner Setup 3.1 11
SG Burner Setup 3.2 12
Wiring 4 13-17
System Start Up 5 18-19
Installation Inspection 6 19
Service and Maintenance 7 20
Installer and Customer Notes

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.
1
IMPORTANT INFORMATION
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. 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
F. CAN/CGA B149
The above codes are available from:
National Fire Protection Association (NFPA)
Battery March Park
Quincy, Massachusetts 02269
OR
http://www.nfpa.org
American Gas Association (AGA)
Pleasant Valley Road
Cleveland, OH 44134
OR HTTP://www.aga.org
Codes and Regulations:

• 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.
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. The homeowner should
never tamper with any part of the boiler.
• Thoroughly read and understand all instructions including the B-10 or SG atmospheric venting instructions
before beginning this installation.
• After installation place this manual in a safe place in plain view of the boiler. If the manual is no longer
legible contact QHT I NC. for a new manual.
• After the boiler is installed and in working order, it should be serviced once a year before each heating
season. Service on the boiler may only be done by an experienced installer or oil heating technician.
• These boilers may only be direct vented using approved venting systems supplied through QHT INC. For
the boiler warranty, please consult the B-10 or SG atmospheric venting manual.
• 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
WARNING
2

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. 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:
* 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.
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.
To reduce the risk of CO poisoning, have your heating system "tuned up" by a licensed heating contractor or
the gas company - preferably before each heating season. Also have the service company check your chimney
or vent pipes for blockage.
Your home should also be adequately ventilated, particularly if you have insulated your home.
ONLY QUALIFIED, LICENSED SERVICE CONTRACTORS SHOULD PERFORM WORK ON
YOUR B-10 OR SG BOILER.
3
WARNING

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. The last piece of the complete package is a direct vent specific
burner.
The Direct Vent Systems are a non-powered positive pressure vent hood system for
gas or oil fired appliances that provides an outlet for exhaust gases and an intake for
combustion air. The hood is designed to direct the hot exhaust gases away from the structure
without the aid of a motorized fan. All of the internal parts in contact with the flue gases are
made from corrosion resistant stainless steel.
4
1. General Information
All equipment should be inspected upon delivery, and any
damage or shortage should be reported to the supplier and
shipper immediately.
NOTICE:

5
DVH-5 Vent System
QHT DIRECT VENT OIL KITS
Apply 5” X 2’ insulation sleeve from hood
connection down over exhaust elbow
before attaching S.S. Flex pipe.
# DESCRIPTION PART #
# DESCRIPTION PART #
1 4” Tee D-4”TEE 9 5” 90° Vent Elbow D-5”ELBSS
2 4” Barometric Damper D-4”DAMP 10 5” Concentric Vent Hood D-5”CONHOOD
3 4” 90°Light Gauge Elbow D-4”ELB 11 5” X 2’ Insulation Sleeve for
Exhaust Hood Elbow D-INSULSLEEVE
4 4” X 8’ Aluminum Flex Duct D-4”ALUFLEX 12 1½ x ½ x 1½ Bull-Head Tee D-1006010
5 6” 90° Vent Elbow D-6”ELBSS 13 L4006A Aquastat D-4006A
6 6” to 5” Double Wall Flexible
Decreaser D-6-5FLEXADAP 14 1/2” Immersion Well D-1/2”WELL
7 5” X 8’Stainless Steel Double
Wall Flex Pipe D-5”SSDWFLEX 15 High Temp Sealant D-SEALANT
8 5” Double Wall Flex Adapter D-5”FLEXADAP
1
2
3
4 5
6
7
8
9

The Exhaust Hood must be installed on the leeward side of house and conform to the
following guidelines:
1. The Vent hood shall be installed 12” above ground level or 12” above nominal snow level of the region of
the installation.
2. The Vent hood shall not be less than 3 feet above any forced air inlet to the house.
3. The Vent hood shall not be less than 4 feet below, 4 feet horizontally, or 1 foot above any door, window
or gravity inlet into any building.
4. The Vent hood shall not be less than 2 feet from an adjacent building.
5. The Vent hood shall be not less than 7 feet above grade when located adjacent to public walkway.
6. The Vent hood shall be located so that flue gasses are not directed to jeopardize people, overheat
combustible structures, materials or enter buildings.
7. Minimum of 4’ horizontal clearance from electric meters, gas meters, regulators and relief equipment.
8. All joints in system are to be sealed to prevent leakage of products of combustion in the building.
9. Avoid installing exhaust hood on North, West, or prevailing wind side of the house.
6
2. Installation of DV Hood
EXTERNAL VENT SURFACES ARE HOT.
CAUTION:
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.
NOTE:
W
S E
N

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 ac-
cumulation 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. Clearance Sealant Required
Vent Kit Horizontal Vertical
Single Wall Rigid 16” (25 mm) 16” (400 mm) G.E. 108
Dow Corning 732
Z-Flex Z-Vent
Sealant
Double Wall Flexible 1” (25 mm) 1” (100 mm) G.E. 106
Z-Flex Z-Vent
Sealant
Note: Clearances are based on an installation of Z-Flex OIL VENT COMPONENTS .
Routing of vent pipe can be planned after the termination location is determined.
7
NOTE

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.
The venting system should be installed and supported in accordance with the National Fuel Gas Code, ANSI
Z223.1, CAN/CGA B149 or in accordance with any local codes.
The Exhaust Kit consists of:
Installation of DVH Exhaust:
1. Begin by locating a suitable location for the exhaust to breech the wall. This location should be at least 12”
above ground level or the expected snow level, and on the leeward side of the house. Consult page 6 for
required distances from windows, doors, etc.. The hood location must also allow for a upward slope of a 1/4”
per foot for the exhaust piping.
2. Once the hood location has been determined, cut a 7 1/2” hole through the wall for the vent terminal. Using
2” X 2”, Frame a box around the hole on the outside of the house so the flange is mounted away from the
siding. Attach the hood to the outside of the house using appropriate screws to support the hood. Use one
screw through each of the predrilled holes on the trim plate of the hood. Do not drill or screw through the
hood at all.
3. Once the hood is secure, mock up the rest of the vent kit. First put the stainless steel elbow on the hood, then
install the stainless steel flex pipe between the elbow and the reducer on the breeching of the boiler. Be sure
that there is always an upward slope of at least 1/4” per foot of the vent pipe. If at any point the vent pipe is
not able to support itself it should be supported from the ceiling.
4. Once you are satisfied with the fit of the exhaust, seal each joint inside and out with high temperature silicone.
Secure each joint with three screws and seal the screws as well.
5. When installation is complete, inspect each joint and apply more sealant to any possible leaks.
DVH-5 System
1 - 6” to 5” Z-Vent Reducer 1 - 5” x 8’ Length of stainless flex pipe
1 - 5” 90 degree elbow 1 - 5” Concentric exhaust
2.1 Exhaust Pipe System
8

For DVH kits:
4. 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.
5. 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.
6. Install the supplied vacuum relief damper in the branch of the tee making sure that it is mounted with all
labeling right side up and perfectly horizontal.
7. Off of the last leg of the tee install the 4” duct elbow, and then the aluminum flex pipe.
8. Finally attach the other end of the flex pipe to the intake hood or intake port on the concentric hood.
9. Inspect the intake system and make sure all connections are secure and then seal each joint with silicone or
aluminum tape.
2.2 Installation of Make-up CombustionAir
NOTICE
Do not operate the burner with air intake disconnected.
9
Vent Connector
Must Be Sealed Design
Air Boot
Exhaust
Combustion
Air
Positive
Pressure
Oil Fired
2.3 Vent System Diagram
DVH-5
2” X 2” Frame
Direct Vent
System
Terminal
Vacuum Relief Valve
(w/ RC-4 Damper)

10
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. Making careful/tight flare connections without couplings on oil suction line.
4. Checking fuel pump pressure.
5. Checking draft at the breeching to insure it is adequate to overcome flue
gas resistance.
6. Setting the air band properly with well maintained instruments. A good
target is 11% to 12.5% of (CO2) or 6.5% to 3.8% of (O2).
To ensure proper burner setup, gauges should be used to check things such as the pump pressure, CO2levels,
etc...
3. Burner Setup

11
3.1 B-10 Burner Setup
Boiler Model B10-3 B10-4 B10-5 B10-6
Burner Model BF-3 BF-3 BF-5 BF-5
Firing Rate 0.55 0.80 1.00 1.25
Insertion Depth 3.0” 3.0" 3.0" 3.0"
Nozzle .4 X 80 .65 X 80 .85 X 60 1.00 X 60
Spray Pattern W W W W
Pump Pressure 180 psi 175 psi 150 psi 175 psi
Turbulator 2 3 2 3
Air Gate 3.2 4.7 3.4 5
BURNER MANUFACTURER Riello
BF3 and BF5
BURNER MANUFACTURER Heat Wise
Pioneer
Boiler Model B-13 B-14 B-15 B-16
Burner Model P-1 KFV* P-1 KA P-1 KA P-2 KA
Firing Rate 0.55 0.90 1.00 1.25
Insertion Depth 3.5” 3.5” 3.5” 3.5”
Nozzle 0.40 X 80 0.65 X 70 0.85 X 70 1.00 X 80
Spray Pattern Solid Solid Semi Solid Hollow
Pump Pressure 200 200 150 190
Head Setting 1 1 1 3.75
Air Setting 0 9.5 16.5 6
*120mm Fan Needed
BURNER MANUFACTURER Beckett
AFII - 150 (NEC 301, 302, 303) , NX (NEC 1101, 1102, 1103)
Boiler Model B10 - 4* B10 - 5*
Burner Model NEC - 301 NEC - 1101 NEC - 302 NEC - 1101 NEC - 303 NEC - 1103
Firing Rate 0.80 0.90 1.00 1.00 1.25 1.20
Insertion Depth 2.75” 6.0” 2.75” 6.0” 2.75” 6.0”
Nozzle .65 X 60o.65 X 60o.85 X 60o.75 X 60o1.00 X 60o.90 X 60o
Spray Pattern hollow solid solid solid solid W
Pump Pressure 160 psi 180 psi 140 psi 180 psi 160 psi 180 psi
Head Type 6 slot 9 slot 6 slot 9 slot 9 slot 9 slot
Head Position 3 3 4 4 5 4.25
Air Setting 3 N/A 3.75 N/A 6 N/A
B10 - 6*B10 - 3*
NEC - 1102
0.55
3.5”
.40 X 60o
hollow
180 psi
6 slot
1.25
N/A
* - These burners may not be used in Canada on Biasi equipment

3.2 SG Burner Setup
Boiler Model SG-2 SG-3 SG-4
Burner Model BF-3 BF-5 BF-5
Firing Rate 0.65 1.00 1.30
Insertion Depth 5.0" 5.0" 5.0"
Nozzle .55 X 70 .85 X 60 1.10 X 80
Spray Pattern solid solid solid
Pump Pressure 145 psi 145 psi 145 psi
Turbulator 0 0 2
Air Gate 4.5 4.0 5.6
BURNER MANUFACTURER Riello
BF3 and BF5
BURNER MANUFACTURER Heat Wise
Pioneer
Boiler Model SG-2 SG-3 SG-4
Burner Model P-1 FV P-1 KA P-2 KA
Firing Rate .65 1.00 1.30
Insertion Depth 3.5” 3.5” 3.5”
Nozzle 0.5 X 80 0.75 X 70 1.00 X 80
Spray Pattern solid solid Semi Solid
Pump Pressure 200 200 200
Head Setting 6 3 3
Air Setting 12.0 11.5 11.5
12
Boiler Model SG-2* SG-3* SG-4*
Burner Model NEC - 1201 NEC - 1202 NEC - 1202
Firing Rate 0.65 1.00 1.30
Insertion Depth 3.5” 6.0” 6.0”
Nozzle .50 X 60o.75 X 60o1.00 X 60o
Spray Pattern hollow solid solid
Pump Pressure 180 psi 180 psi 180 psi
Head Type 6 slot 9 slot 9 slot
Head Position 1.50 3.50 4.25
BURNER MANUFACTURER Beckett
NX (NEC 1201, 1202)
* - These burners may not be used in Canada on Biasi equipment

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. Wiring done in
the field between devices not attached to boiler shall conform with the temperature limitations for type T wire
(63F/35C) or other specified wire as applicable when installed in accordance to manufacturer's instructions and
wiring diagrams.
If an external electrical source is utilized, the boiler, when installed, must be electrically bonded to
ground in accordance with the requirements of the authority having jurisdiction or , in the absence of such re-
quirements, with the National Electrical Code, ANSI/NFPA 70 or Canadian Electrical Code Part I,CSA C22.1,
Electrical Code.
The L4006A Post Purge Aquastat is installed to ensure that if the boiler exceeds 200° F all power is
disconnected to the burner. The aquastat should be mounted on the supply side of the boiler into the supplied
bullhead tee. To wire the post purge aquastat please refer to the schematics for your specific burner on the fol-
lowing pages.
13
POST PURGE and HIGH LIMIT CONTROL
The post purge control (L4006A) must be mounted on the immersion well in 11/2x 1/2x 1 1/2
tee supplied with DVH Trim Kit.
4. Wiring
Operating Aquastat
Set at 180° F
30° F Diff
Post Purge
Set at 200° F
15° F Diff
11/2x 1/2x 11/2Tee
PRV

4. Wiring
Note 2: All wiring must be done in accordance with applicable state, local and national codes.
Use only copper conductors.
14
OPTIONAL:CHECKLOCALCODES
LO-WATERCUTOFF
FIRE-O-MATIC
SR301T1TT2TT3T
GND
L1NL2NL3N
L2CFL1
X1
X2
L1(HOT)
L2(NEUTRAL)
120VAC
15AMPBreaker
ON/OFF
SWITCH
GWRB GWRB
L4006A
Postpurge
safetylimitset
to210witha
10Fdiff.
TTDHW
CONTROL
T
T
F
F
G
W
Red
B
Honeywellburner
controlmodel7184p
L4006A
Operatinglimit
setat180F
30FDiff.

4. Wiring
15
Riello Burner without post-purge control multi-zone, control wiring
OPTIONAL: CHECK LOCAL CODES
LO-WATER CUTOFF
FIRE-O-MATIC
SR 301 T 1 T T 2 T T 3 T
GNDL1 N L2 N L3 N
L2 CF L1X1X2
L1 (HOT)
L2 (NEUTRAL)
120 VAC
15 AMP Breaker
G W R B G W R B
L 4006A
N X (ALARM) L GGround on
Riello Chassis
Aux terminal requires
constant 120V power for
electric air damper
T T DHW
CONTROL
ON/OFF
SWITCH

4. Wiring
16
Riello Burner with post-purge control multi-zone, control wiring

4. Wiring
Note 2: All wiring must be done in accordance with applicable state, local and national codes.
Use only copper conductors.
17
OPTIONAL:CHECKLOCALCODES
LO-WATERCUTOFF
FIRE-O-MATIC
SR301T1TT2TT3T
GND
L1NL2NL3N
L2CFL1
X1
X2
L1(HOT)
L2(NEUTRAL)
120VAC
15AMPBreaker
ON/OFF
SWITCH
GWRB GWRB
L4006A
Postpurge
safetylimitset
to210witha
10Fdiff.
TT
DHW
CONTROL
T
T
F
F
G
W
Red
B
Honeywellburner
controlmodel7184p
L4006A
Operatinglimit
setat180F
30FDiff.