Dettson AMP098SD Assembly instructions

AMP098SD
AMP098SV
c us
DNS-1082A
MULTIPOSITION
OIL-FIRED FURNACE
Models:
Installation Instructions
and Homeowner’s Manual
Printed in Canada on 100% recycled paper 2013-03-02 X40185 Rev. C
3400, Industrial Boulevard
Sherbrooke, Qc, Canada, J1L 1V8
Manufactured by:
Dettson Industries Inc
Attention
Do not tamper with the unit
or its controls. Call a
qualified service technician.
INSTALLER / SERVICE TECHNICIAN :
Use the information in this manual for the installation / servicing of the
furnace and keep the document near the unit for future reference.
HOMEOWNER :
Please keep this manual near the furnace for future reference.
www.dettson.ca

2
TABLE OF CONTENTS
1. SAFETY REGULATIONS..........................................3
1.1 SAFETY LABELING AND WARNING SIGNS........................3
1.2 IMPORTANT INFORMATION ..................................................3
1.3 DETECTION SYSTEMS..............................................................3
1.4 DANGER OF FREEZING............................................................3
2. INSTALLATION..............................................................4
2.1 POSITIONING THE FURNACE.................................................4
2.1.1 Installation in an enclosure .................................................4
2.2 CONFIGURATIONS....................................................................4
2.2.1 Upflow Installation .............................................................4
2.2.2 Downflow Installation.........................................................5
2.3 ELECTRICAL SYSTEM..............................................................5
2.4 INSTALLATION OF THE THERMOSTAT...............................5
2.5 INSTALLATION OF THE BURNER..........................................6
2.5.1 Nozzles................................................................................6
2.5.2 Air and Turbulator Settings.................................................6
2.5.3 Post purge delay adjustment ...............................................6
2.6 VENTING .....................................................................................6
2.6.1 Masonry chimney................................................................7
2.6.2 Factory Built Chimneys ......................................................7
2.6.3 Draft Regulator....................................................................7
2.7 BLOCKED VENT SHUT-OFF DEVICE (BVSO) FOR
CHIMNEY VENTING .................................................................7
2.8 COMBUSTION AIR SUPPLY AND VENT...............................7
2.8.1 Contaminated Combustion Air ...........................................7
2.8.2 Burner with Outdoor Combustion Air Kit..........................8
2.9 OIL TANK ....................................................................................8
2.10 DUCTING.....................................................................................8
2.11 SUPPLY AIR ADJUST. (4 SPEED MOTORS) ..........................8
2.12 SUPPLY AIR ADJUST.(ECM VAR.SP. MOTORS)..................9
2.13 INSTALLATION OF ACCESSORIES........................................9
2.13.1 Humidifier (HUM)..............................................................9
2.13.2 Electronic Air Cleaner (EAC).............................................9
2.13.3 Air Conditioner (or Heat Pump) .......................................10
3OPERATION..............................................................10
3.1 START-UP..................................................................................10
3.2 OPERATING SEQUENCE OIL HEATING MODE.................10
3.3 CHECKS AND ADJUSTMENTS..............................................10
3.3.1 Purging the oil line............................................................10
3.3.2 Pressure adjustment...........................................................10
3.3.3 Combustion Check............................................................11
3.3.4 Draft Regulator adjustment...............................................11
3.3.5 Overfire pressure test ........................................................11
3.3.6 Vent Temperature Test......................................................11
3.3.7 Supply Air Temperature Rise Test....................................11
3.3.8 Limit Control Check .........................................................11
3.3.9 Restart after Burner Failure...............................................11
4MAINTENANCE........................................................12
4.1 CLEANING THE HEAT EXCHANGER..................................12
4.2 CLEANING THE BLOCKED VENT SHUT-OFF DEVICE
(BVSO)........................................................................................12
4.3 CLEANING OF THE BURNER HEAD.....................................12
4.4 CHANGING THE NOZZLE......................................................12
4.5 CHANGING THE OIL FILTER ................................................12
4.6 CHANGING THE AIR FILTER ................................................12
5FURNACE INFORMATION....................................13
TABLES
Table 1: Blower speed adjustments (4-speed motors)........................8
Table 2: Supply air adjustments, ECM variable speed motors,
heating mode.............................................................................9
Table 3: Supply air adjustments, ECM variable speed motors,
air conditioning mode ...............................................................9
Table 4: CFM adjustments, all modes ...............................................9
Table 5: Delay adjustments - heating mode.......................................9
Table 6: Technical Specifications....................................................14
Table 7: Airflow data, models with 1/2 HP ECM motors................15
Table 8: Airflow data, models with 1/3 HP PSC motors .................16
Table 9: Minimum clearances from combustible materials.............16
Table 10: Parts list with 4-speed motor (PSC).................................21
Table 11: Parts list with variable speed motor (ECM).....................23
FIGURES
Figure 1: Location and dimensions of ventilation air
openings in a closet door ................................................4
Figure 2: Upflow installation..................................................4
Figure 3: Downflow installation.............................................5
Figure 4: Horizontal installation.............................................5
Figure 5: Thermostat wiring, heating and air conditioning
with 4-speed motor .........................................................5
Figure 6: Thermostat wiring heating and air conditioning
with ECM variable speed motor.....................................6
Figure 7: Thermostat wiring, heating and air cond. heat
pump with ECM v. speed motor.....................................6
Figure 8: Blower start/stop delays..........................................9
Figure 9: Furnace dimensions...............................................17
Figure 10: Wiring diagram, 4-speed motor (PSC)................18
Figure 11: Wiring diagram, variable speed motor (ECM)....19
Figure 12: Parts list with 4-speed motor (PSC)....................20
Figure 13: Parts list with variable speed motor (ECM)........22

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1.SAFETY REGULATIONS g) Before calling for service, be sure to have the
information page in section 5 of your manual close
by in order to be able to provide the contractor
with the required information, such as the model
and serial numbers of the furnace.
1.1 SAFETY LABELING AND
WARNING SIGNS WARNING
The words DANGER, WARNING AND CAUTION are used to
identify the levels of seriousness of certain hazards. It is
important that you understand their meaning. You will notice
these words in the manual as follows:
Installations and repairs performed by unqualified
persons can result in hazards to them and to others.
Installations must conform to local codes or, in the
DANGER absence of same, to codes of the country having
jurisdiction.
Immediate hazards that WILL result in death, serious The information contained in this manual is intended
bodily injury and/or property damage. for use by a qualified technician, familiar with safety
procedures and who is equipped with the proper tools
WARNING and test instruments.
Failure to carefully read and follow all instructions in
this manual can result in death, bodily injury and/or
Hazards or unsafe practices that CAN result in death, property damage.
bodily injury and/or property damage.
CAUTION 1.3 DETECTION SYSTEMS
Hazards or unsafe practices that CAN result in bodily injury
and/or property damage. It is recommended that carbon monoxide detectors be
installed wherever oil or gas fired heaters are used.
Carbon monoxide can cause bodily harm or death. For
this reason, agency approved carbon monoxide detectors
should be installed in your residence and properly
maintained to warn of dangerously high carbon monoxide
levels.
1.2 IMPORTANT INFORMATION
WARNING
There are several sources of possible smoke and flames
in a residence. Smoke and flames can cause bodily harm
or death. For this reason, agency approved smoke
detectors should be installed in your residence and
properly maintained, to warn early on, of a potentially
dangerous fire. Also, the house should be equipped with
approved and properly maintained fire extinguishers.
Non-observance of the safety regulations outlined in this
manual will potentially lead to consequences resulting in
death, serious bodily injury and/or property damage.
a) It is the homeowner’s responsibility to engage a
qualified technician for the installation and subsequent
servicing of this furnace;
Your unit is equipped with safety devices that can prevent it
from functioning when anomalies are detected such as a
blocked venting system.
b) Do not use this furnace if any part of it was under
water. Call a qualified service technician immediately
to assess the damage and to replace all critical parts
that were in contact with water; 1.4 DANGER OF FREEZING
c) Do not store gasoline or any other flammable
substances, such as paper, carton, etc. near the
furnace; CAUTION
If your furnace is shut down during the cold weather
d) This furnace is designed for use with #1 or #2 heating
oil only. The use of gasoline, motor oil or any other oil
containing gasoline is prohibited;
season, water pipes may freeze, burst and cause serious
water damage. Turn off the water supply and bleed the
pipes.
e) Never block or otherwise obstruct the filter and/or
return air openings;
If the heater is left unattended during the cold weather
season, take the following precautions:
f) Ask the technician installing your furnace to show and
explain to you the following items: Close the main water valve in the house and purge the
pipes if possible. Open all the faucets in the house;
a.
b.
i) The main disconnect switch;
ii) The shut-off valve on the oil tank; Ask someone to frequently check the house during the
cold weather season to make sure that there is
sufficient heat to prevent the pipes from freezing. Tell
this person to call an emergency number if required.
iii) The oil filter and how to change it (once a year);
iv) The air filter and how to change it (check monthly
and clean or replace if necessary.)

4
2. INSTALLATION The unit must be installed in an area where the ambient
and return air temperatures are above 15°C (60°F). In
addition, the furnace should be installed as closely as
possible to the vent, so that the connections are direct and
kept to a minimum. The heater should also be located
close to the centre of the air distribution system.
This furnace is a true multi-position unit, in that it will function
in an upflow, downflow or horizontal configuration to the left or
the right. Only a few modifications are required during
installation to change from one position to another. The unit is
shipped in the upflow configuration and instructions as to how
to change to the other positions are included in this manual. 2.1.1 Installation in an enclosure
The unit can be installed in an enclosure such as a closet.
However, 2 ventilation openings are required for
combustion air. The openings should be located in front of
the furnace approximately 15 cm (6") above the floor and
15 cm (6") below the ceiling. Figure 1 indicates the
minimum dimensions required and the location of the
openings.
It requires an 115VAC power supply to the control panel and
thermostat hook-up as shown on the wiring diagram, one or
more oil line connections, suitable ductwork and connection to
a properly sized vent.
All local and national code requirements governing the
installation of oil burning equipment, wiring and the flue
connection MUST be followed. Some of the codes that may
apply are: Figure 1: Location and dimensions of ventilation air
openings in a closet door
CSA B139: Installation code for oil burning equipment.
ANSI/NFPA 31: Installation of oil burning equipment.
ANSI/NFPA 90B: Warm air heating and air conditioning
systems.
ANSI/NFPA 211: Chimneys, Fireplaces, Vents and solid fuel
burning appliances.
ANSI/NFPA 70: National Electrical Code.
CSA C22.1: Canadian Electrical Code.
or CSA C22.10:
Only the latest issues of these codes may be used.
2.1 POSITIONING THE FURNACE
WARNING
Fire and explosion hazard. 2.2 CONFIGURATIONS
The furnace must be installed in a level position, never
where it will slope toward the front. 2.2.1 Upflow Installation
Do not store or use gasoline or any other flammable The return air opening may be located on either side of
the furnace. Care should be taken not to damage the
wires inside, while cutting the opening. Install the filter
rack supplied with the unit according to the instructions
provided with it. It is also recommended to install the
blower door before handling or moving the unit. Refer to
figure 2 for additional details.
substances near the furnace.
Non-observance of these instructions will potentially result
in death, bodily injury and/or property damage.
CAUTION
This furnace is not watertight and is not designed for outdoor Figure 2: Upflow installation
installation. It must be installed in such a manner as to protect
its electrical components from water. Outdoor installation will
lead to a hazardous electrical condition and to premature
failure of the equipment.
The minimum clearances from combustible material for
each of the positions are specified in Table 9.
If the furnace is installed in a basement or on a dirt floor, in a
crawl space for example, it is recommended to install the unit
on a cement base 2.5 cm to 5.0 cm (1" to 2") thick.
Burner position
Filter 20" x 20"
Combustible or non-
combustible floor

5
2.2.2 Downflow Installation Figure 4: Horizontal installation
When the furnace is installed in the downflow position on a
combustible floor, the clearances from combustibles must be
adhered to. The downflow base DFB-102 or KLASB0801DET
can be used to ensure these clearances. Refer to Figure 3 and
the installation instructions provided with the base.
In cases where the return air enters through the floor, the floor
return base FRB-101 or KLARB0101DET must be used.
The burner must always be installed in the same manner,
regardless of the discharge position of the furnace. Refer to
Figure 3 for additional details.
The protection plate (B03789) must be installed on the plastic
cover of the Beckett NX burner to protect it from vent.
Figure 3: Downflow installation
2.2.3 Horizontal Installation
When the furnace is installed in the horizontal position, either
suspended or on a combustible floor with a choice of right or
left discharge, the clearances from combustible material must
be adhered to. If the unit is installed on a combustible floor, the
horizontal floor base HFB-101 or KLASB0701DET can be
used to ensure these clearances. Refer to the instructions
supplied with the base.
In cases where the return air enters through the floor, the floor
return base FRB-101 or KLARB0101DET can be installed as
per the supplied instructions.
The burner must always be installed in the same manner,
regardless of the discharge position of the furnace. Refer to
Figure 4 for additional details.
2.3 ELECTRICAL SYSTEM
CAUTION
The exterior of the unit must have an uninterrupted ground
to minimize the risk of bodily harm, if ever an electrical
problem develops. A green ground screw is supplied with
the control box for that purpose.
The appliance must be installed in accordance with the
current ANSI/NFPA 70 National Electrical Code, CSA
C22.1 Canadian Electrical Code Part 1 and/or local codes.
The control system depends on the correct polarity of the
power supply. Connect “HOT” wire (H) and “NEUTRAL”
wire (N) as shown in figures 10 and 11.
A separate line voltage supply should be used, with fused
disconnect switch or circuit breaker, between the main
power panel and the unit.
Only copper wire may be used for the 115V circuit on this
unit. If wires need to be changed, the replacements must
have the same temperature resistance as the originals.
2.4 INSTALLATION OF THE THERMOSTAT
A thermostat must be installed to control the temperature
of the area to be heated. Follow the instructions supplied
with the thermostat. Also refer to the wiring diagrams
provided with the heating/air conditioning unit. The
connections must be made as indicated on the following
diagrams and the wiring diagrams, figures 10 and 11.
Figure 5: Thermostat wiring, heating and air
conditioning with 4-speed motor
Filter rack 20" x 20"
Floor Return Base
Downflow base is
required for
combustible floor
Floor Return
Burner
Horizontal floor base
required for
combustible floo
r
Filter rack 20" x 20"
Burner position

6
5. Make the electrical connections;
Figure 6: Thermostat wiring heating and air conditioning
with ECM variable speed motor 6. Complete oil line connections.
2.5.1 Nozzles
The burner comes equipped with an appropriate nozzle.
However, if another size or a replacement nozzle is
required, use the manufacturer’s recommended spray
angle and type as shown in Table 6 and based on a pump
pressure of 100 psi.
Always select nozzle sizes by working back from the
desired flow rate at operating pressure and not the nozzle
marking.
2.5.2 Air and Turbulator Settings
Before starting the burner for the first time, adjust the air
and turbulator settings to those listed in this manual, Table
6. Once the burner becomes operational, final
adjustments will be required. Refer to section 3 of this
manual.
2.5.3 Post purge delay adjustment
The post purge delay on the oil-fired burners is factory set
to zero second. This delay is applicable for all installations
with chimney venting. For heating units installed with side
wall venting and a burner equipped with this feature, the
post purge delay must be set to 15 seconds. No delay is
required for Riello burners. Refer to the burner control
instruction manual and markings for proper adjustment of
the post purge delay.
Figure 7: Thermostat wiring, heating and air cond. heat
pump with ECM v. speed motor
2.6 VENTING
WARNING
Poisonous carbon monoxide gas, fire and explosion
hazard.
Read and follow all instructions in this section.
Failure to properly vent this furnace can result in in
death, bodily injury and/or property damage.
To ensure the safe and proper functioning of an oil
furnace, it must always be connected to a flue with
sufficient draft or to an approved side-wall venting system.
In addition, it is strongly recommended to perform a
complete inspection of all the existing venting systems.
Note : On units with 2 stage cooling or heat pump, terminal Y1
must be used. When Y1 on the electronic control receives a 24
VAC signal, the air flow is reduced by 20%. Do not use
terminal Y1 with a single stage cooling or heat pump.
WARNING
Poisonous carbon monoxide gas hazard.
Never install a hand operated damper in the vent pipe.
2.5 INSTALLATION OF THE BURNER However, any Underwriters Laboratories listed,
electrically operated automatic type vent damper may
Refer to the burner manufacturer’s instructions. Also, the
burner must be installed always in the same way
independently of the furnace orientation. be installed if desired. Be sure to follow the
instructions provided with vent damper. Also, read
and follow all instructions in this section of the
1. Position the mounting gasket between the mounting
flange and the burner mounting plate. Align the holes in
the burner mounting plate with the studs on the mounting
flange and bolt securely in place.
manual.
Failure to properly vent this furnace or other
appliances can result in death, bodily injury and/or
property damage.
2. Remove the burner drawer assembly or the air tube
assembly;
3. Install the nozzle, refer to Technical Specifications Table
6;
4. Check the electrode settings;

7
2.6.1 Masonry chimney
1. Start up the burner;
2. Remove the three-pole plug from the BVSO outlet on
the furnace;
This furnace can be vented into an existing masonry chimney.
However, the unit must not be vented into a chimney into
which a solid fuel burning furnace is already being vented. 3. The burner must shut-off immediately, while the
blower continues to run to the end of the cool-down
cycle.
Before venting this furnace into a chimney, its condition must
be checked and repairs made, if necessary. Also, the chimney
lining and dimensions must conform to local and national
codes.
If the test is not in line with the above, call a QUALIFIED
SERVICE TECHNICIAN.
2.6.2 Factory Built Chimneys
2.8 COMBUSTION AIR SUPPLY
AND VENTILATION
Oil fired furnaces are approved for use with “L” type vents. The
unit may also be used with an approved chimney of proper
dimensions and temperature ratings as specified in the
installation code. Refer to chimney manufacturer’s instructions
for proper installation.
WARNING
Poisonous carbon monoxide gas hazard.
2.6.3 Draft Regulator
Comply with NFPA 31 (U.S.) and CSA B139 (Canada)
standards for the installation of Oil Burning
It is recommended that a draft regulator be installed in cases
where the draft is either high or variable due to external
conditions. Follow the instructions provided with the regulator. Equipment and applicable provisions of local building
codes to provide combustion and ventilation air.
Failure to provide adequate combustion and
2.6.4 Side-wall Venting ventilation air can result in death, bodily injury and/or
property damage.
The heating unit is approved for side-wall venting. This system
is comprised of a model VTK-54 / VTK-098 / KLAVT0101DET
side-wall venter and a 4” insulated vent pipe, model IFV-410 /
IFV098-10 / KLAFV0101DET, IFV-420 / IFV098-20 /
KLAFV0201DET. Refer to the installation instructions provided
with the venting system.
Oil furnaces must have an adequate supply of combustion
air. It is common practice to assume that older homes
have sufficient infiltration to accommodate the combustion
air requirement for the furnace. However, home
improvements such as new windows, doors, and weather
stripping have drastically reduced the volume of air
infiltration into the home.
2.7 BLOCKED VENT SHUT-OFF DEVICE
(BVSO) FOR CHIMNEY VENTING
Refer to oil furnace installation codes relative to
combustion and ventilation air requirements. Consult
Section 2.1 in this manual, specifically for units installed in
an enclosed space.
CAUTION
It is imperative that this device be installed by a qualified service
technician.
Home air exhausters are common. Bathroom and kitchen
fans, power vented clothes dryers and water heaters all
tend to create a negative pressure condition in the home.
Should this occur the chimney becomes less and less
effective and can easily downdraft. In certain cases,
mechanically supplied air, by way of a blower, interlocked
with the unit, is necessary. It is the installer’s responsibility
to check that.
A positive pressure venting system (Sealed Combustion System
or Direct Vent) MUST NOT uses the BVSO. Follow the
instructions supplied with the venting system.
This device is designed to detect the insufficient evacuation of
combustion gases in the event of a vent blockage. In such a
case the thermal switch will shut down the oil burner. The
device will then need to be re-armed MANUALLY. 2.8.1 Contaminated Combustion Air
Refer to the detailed instructions and wiring diagrams supplied
with the BVSO for the installation and wiring procedures. The
length of wires supplied with the unit is such that the safety
device must be installed between the flue outlet of the
appliance and the draft regulator, as indicated in the
instructions.
Installations in certain areas or types of structures will
increase the exposure to chemicals or halogens that may
harm the furnace. These conditions will require that only
outside air be used for combustion.
The following areas or types of structures may contain or
be exposed to certain substances, potentially requiring
outside air for combustion:
It is also essential that the BVSO be maintained annually. For
more details refer to the instructions supplied with the device
itself, as well as Section 3 of this Manual.
a. Commercial buildings;
b. Buildings with indoor pools;
c. Furnaces installed near chemical storage areas.
2.7.1 BVSO Performance Test
Exposure to the following substances:
The purpose of the following test is to check that the electrical
outlet on the furnace, designated to the BVSO, is functional.
a. Permanent wave chemicals for hair;
b. Chlorinated waxes and cleaners;
c. Chlorine based swimming pool chemicals;
d. Water softening chemicals;
e. De-icing salts or chemicals;
f. Carbon tetrachloride;

8
g. Halogen type refrigerants; 2.10 DUCTING
h. Cleaning solvents (such as perchloroethylene);
i. Printing inks, paint removers, varnishes, etc. ; WARNING
j. Hydrochloric acid;
k. Solvent based glue; Poisonous carbon monoxide gas hazard.
l. Antistatic fabric softeners for clothes dryers;
DO NOT draw return air from inside a closet or utility
m. Acid based masonry cleaning materials. room. Return air MUST be sealed to the furnace
casing.
2.8.2 Burner with Outdoor Combustion Air Kit
Failure to properly seal ducts can result in death,
Some burners are designed to function with combustion air
taken directly from the outside. Follow the instructions provided
with the burner, the fresh-air supply kit or the side-wall venting
kit.
bodily injury and/or property damage.
The ducting must be designed and installed according to
approved methods, local and national codes as well as
good trade practices.
2.9 OIL TANK
When ducting supplies air to a space other than where the
furnace is located, the return air must be sealed and also
be directed to the space other than where the furnace is
located.
WARNING
Fire and explosion hazard.
2.10.1 Air filter
Use only approved heating type oil in this furnace.
DO NOT USE waste oil, used motor oil, gasoline or A properly sized air filter must be installed on the return air
side of the unit. Refer to the Technical Specifications,
table 6, for the correct dimensions. Also refer to Section
2.2 and the instructions supplied with the filter.
kerosene.
Use of these will result in death, bodily injury and/or
property damage.
2.11 SUPPLY AIR ADJUSTMENTS
(4 SPEED MOTORS)
CAUTION
When a 0.75 USGPH or smaller nozzle is used, a 10 micron or On units equipped with 4-speed blower motors, the supply
air must be adjusted based on heating/air conditioning
output and the static pressure of the duct system. For the
desired air flow refer to the following table as well as the
air flow tables 7 and 8, based on static pressure.
finer filter, must be installed on the oil supply line to the
furnace inside the building where the unit is located.
This is a requirement in order for the heat exchanger warranty
to remain in force.
Check your local codes for the installation of the oil tank and
accessories. Table 1: Blower speed adjustments (4-speed motors)
At the beginning of each heating season or once a year, check
the complete oil distribution system for leaks. FURNACE HEATING OR A/C RECOMMENDED
APPLICATION OUTPUT BLOWER SPEED
Ensure that the tank is full of clean oil. Use No.1 or No.2
Heating Oil (ASTM D396 U.S.) or in Canada, use No.1 or No.2
Furnace Oil.
0.50 USGPH MED-LOW
A manual shut-off valve and an oil filter shall be installed in
sequence from tank to burner. Be sure that the oil line is clean
before connecting to the burner. The oil line should be
protected to eliminate any possible damage. Installations
where the oil tank is below the burner level must employ a two-
pipe fuel supply system with an appropriate fuel pump. A rise
of 2.4 m (8') and more requires a two stage pump and a rise
greater than 4.9 m (16') an auxiliary pump. Follow the pump
instructions to determine the size of pipe needed in relation to
the rise or to the horizontal distance.
0.60 USGPH MED-HIGH
HEATING 0.70 USGPH HIGH
2.0 TONS MED-LOW
2.5 TONS MED-HIGH
A/C 3.0 TONS HIGH
To effect the adjustment, the RED (for heating) and BLUE
(for cooling and heat pump) wires can be changed on the
motor. Also, refer to the position of the wires on the
electronic board of the unit and consult the wiring
diagrams. If the heating and air conditioning speeds are
the same, the RED wire must be moved to “UNUSED
LEADS” on the electronic board and the jumper provided
with the BLUE wire must be used between the “HEAT”
and “COOL” terminals.
The blower start/stop delays can be adjusted by
positioning the DIP switches on the electronic board as
shown in the following figures. The recommended blower
ON delay is 60 seconds and the blower OFF delay is 2
minutes.

9
Figure 8: Blower start/stop delays
Board # 1158
Table 5: Delay adjustments - heating mode
SW4 – Delay
2.12 SUPPLY AIR ADJUSTMENTS
(ECM VARIABLE SPEED MOTORS)
On units equipped with ECM variable speed blower motors,
the air supply must be adjusted based on heating/air
conditioning output. The start/stop delays of the blower must
also be adjusted by positioning the DIP switches on the
electronic board. Refer to the following tables, air flow table 7
and the wiring diagram, figures 10 and 11 in this manual for
the proper settings:
Table 2: Supply air adjustments, ECM variable speed
motors, heating mode
SW1 – HEAT
DIP Switch Positions
1 2 POSITION
Input
USGPH
OFF OFF A 0.70
ON OFF B 0.60
OFF ON C 0.50
ON ON D ALL
Table 3: Supply air adjustments, ECM variable speed
motors, air conditioning mode
SW2 – COOL
DIP Switch Positions
1 2 POSITION
Output
Tons
OFF OFF A 3.0
ON OFF B 2.5
OFF ON C 2.0
ON ON D 1.5
Table 4: CFM adjustments, all modes
SW3 – ADJ (Adjustment)
DIP Switch Positions
1 2 POSITION
CFM HTG.
% increase
or decrease
CFM A/C
% increase
or decrease
OFF OFF A 0% 0%
ON OFF B +10% +10%
OFF ON C -10% -10%
ON ON D N/A 0%
DIP Switch Positions Input
1 2 POSITION
USGPH
OFF OFF A 0.70
ON OFF B 0.60
OFF ON C 0.50
ON ON D ALL
2.13 INSTALLATION OF ACCESSORIES
WARNING
Electrical shock hazard.
Turn OFF electrical power at the fuse box or service
panel before making any electrical connections and
ensure a proper ground connection is made before
connecting line voltage.
Failure to do so can result in death or bodily injury.
2.13.1 Humidifier (HUM)
The 120 VAC HUM terminal on the electronic board of the
blower is tied directly to terminal 8 of the 9-terminal
connector of the electronic board. It supplies 120 VAC
electric power when the burner is in operation.
A 24 VAC signal can also be supplied from the W and C
terminals on the blower electronic board to activate a
switching relay.
Also refer to the instructions supplied with the accessory.
2.13.2 Electronic Air Cleaner (EAC)
The EAC terminal on the electronic board supplies 120
VAC when the blower is operating in the heating or air
conditioning mode. This signal can be used to activate an
electronic air cleaner that is not equipped with an air flow
switch. If the cleaner is equipped with an air flow switch,
the S terminal on the electronic board or one of the 120
VAC terminal on the ECM electronic card can be used to
provide a constant supply of 120 VAC.
Also refer to the instructions supplied with the accessory.

10
2.13.3 Air Conditioner (or Heat Pump) 3.2 OPERATING SEQUENCE
OIL HEATING MODE
An air conditioning coil may be installed on the supply air side
ONLY. 1. The W-R contact closes;
2. The burner motor starts up to pre-purge the
combustion chamber for a period of 10 to 15
seconds. During that time a spark is established on
the electrodes;
WARNING
Poisonous carbon monoxide gas hazard.
3. The solenoid valve opens and a flame is established.
Shortly after, the electrodes cease to spark;
Install the evaporator coil on the supply side of the
furnace ducting ONLY. 4. Then the blower runs up to full speed. The delay
depends on the adjustments that were made on the
electronic board, which controls the blower motor.
Refer to Sections 2.11 and 2.12, as well as the CFM
tables 7 and 8 for more details.
An evaporator coil installed on the return air side of the
ducting can cause condensation to form inside the heat
exchanger, resulting in heat exchanger failure. This in
turn, can result in death, bodily injury and/or property
damage. 5. When the call for heat is satisfied, the solenoid valve
closes, the flame goes out and the burner motor
stops (after post purge delay, if applicable).
A clearance of 15 cm (6") is required between the bottom of
the coil drain pan and the top of the heat exchanger. If a heat
pump is installed, a “dual-energy” thermostat, or other control
is recommended, in order to prevent the simultaneous
operation of the furnace and the heat pump. It also prevents a
direct transition from heating by way of the heat pump to
heating with oil. Refer to the thermostat instructions or those of
another control used for the proper wiring.
6. The blower stops shortly after the burner. The delay
depends on the adjustments that were made on the
electronic board that controls the blower. Refer to
Sections 2.11 and 2.12, as well as the CFM tables 7
and 8 for more details.
Note: A detailed operating sequence of the oil burner is
outlined in the instructions provided with the burner.
3.3 CHECKS AND ADJUSTMENTS
3 OPERATION
3.3.1 Purging the oil line
3.1 START-UP Open the bleed port screw and start the burner. Allow the
oil to drain into a container for at least 10 seconds. The oil
should flow absolutely free of white streaks or air bubbles
to indicate that no air is being drawn into the suction side
of the oil piping and pump. Slowly close and tighten the
bleed screw. Once closed, the flame will light up.
Before starting up the unit, be sure to check that the following
items are in compliance:
1. The electrical installation, the oil supply system, the
venting system, combustion air supply and ventilation;
2. The blower access door is in place and the blower rail
locking screws are well tightened; 3.3.2 Pressure adjustment
3. The Blocked Vent Shut-Off (BVSO) is installed according
to instructions (for chimney venting);
The oil pressure must be adjusted according to the
Technical Specifications of this manual. An adjustment
screw and a connection for a pressure gauge are located
on the oil pump for that purpose. Also refer to the burner
instruction manual.
4. The oil supply valve is open;
5. The burner ‘’Reset’’ button is well pushed in or re-armed;
6. The preliminary air adjustments on the burner comply
with the technical specifications in this manual;
7. The blower speed adjustments for heating and air
conditioning are appropriate and according to the
specifications in this manual;
8. The blower start/stop delays are satisfactory;
9. The thermostat of the room is in the heating mode and is
set higher than the ambient temperature.
To start the unit, turn the main electrical switch on.

11
2. The total
CAUTION
Low flue gas temperatures increase the risk of
condensation. Adjust the total temperature at or higher
then 204°C (400°F) in order for the heat exchanger
warranty to remain in force.
3.3.3 Combustion Check vent temperature should be between 204
and 302°C (400 and 575°F). If not, check for improper
air temperature rise, pump pressure, nozzle size or a
badly soothed heat exchanger.
IMPORTANT
The heat exchanger metal surfaces may have oil and the
baffle insulation also contains binders. These products will 3.3.7 Supply Air Temperature Rise Test
burn or evaporate when the unit operates for the first time. 1. Operate the burner for at least 10 minutes;
Because of that, the smoke reading may be skewed during the
first minutes of operation. Therefore, the unit must operate
during at least 60 minutes before taking any readings to adjust
the combustion quality. Let the unit cool down before making
any adjustments.
IMPORTANT
The combustion check verification MUST be performed after
the nozzle replacement or the burner cleaning. After these 2. Measure the air temperature in the return air plenum;
manipulations, the combustion parameters are necessarily 3. Measuring the air temperature in the largest trunk
coming off the supply air plenum, just outside the
range of radiant heat from the heat exchanger. 0.3 m
(12") from the plenum of the main take-off is usually
sufficient;
modified. Refer also to the burner instruction manual.
1. Pierce a test hole in the flue pipe, approximately 18 inches
from the furnace breech. Insert the smoke test probe into
the hole. For installation using a sidewall venting, use the
orifice provided on the breech plate; 4. The temperature rise is calculated by subtracting the
return air temperature from the supply air
temperature;
2. From a cold start, let the unit operate for about 5 minutes;
3. Set the burner air setting until you have between 0 and 1
on the Bacharach Scale (or a ‘’trace’’); 5. If the temperature rise is lower or exceeds the
temperature specified in Table 6, change to the next
lower or higher blower speed tap, until the
temperature rise falls to the target. If the excessive
temperature rise cannot be increased or reduced by
changing fan speed, investigate for ductwork
obstructions, dirty or improper air filter, improper firing
caused by improper pump pressure or nozzle sizing.
4. Take a CO2sample at the same test location where the
#1 smoke reading was taken and make note of it.
Example: 13.8% of CO or 2.5% of O ;
2 2
5. Adjust the burner air setting to obtain a CO2 reading 1.5%
lower (or a O2reading 2.0% higher) than the reading
associated with the ‘’trace’’ of smoke. Example: 12.3% of
CO or 4.5% of O ;
2 2 3.3.8 Limit Control Check
6. This method of adjusting the burner will result in clean
combustion (Bacharach smoke scale between 0 and a
‘’trace’’) and ensure the proper functioning of the system.
The optimum CO
After operating the furnace for at least 15 minutes, restrict
the return air supply by blocking the filters or the return air
register and allow the furnace to shut off on High Limit.
The burner will shut off but the blower will continue to run.
2level is around 12% to 13% (or 3.5% to
5.0% of O ).
2
Remove the obstruction and the burner should restart
after a few minutes. The time required for the restart also
depends on the adjustment of the blower “OFF” delay.
3.3.4 Draft Regulator adjustment
On chimney installations only, a barometric draft regulator
(supplied with the furnace) must be installed, in order to ensure
proper draft through the furnace. The barometric damper must
be mounted with the hinge pins in a horizontal position and the
face of the damper vertical for proper functioning (see
instructions included with the damper.) After the furnace has
been firing for at least five minutes, the draft regulator should
be set to between -0.025" and -0.060" W.C.
3.3.9 Restart after Burner Failure
1. Set the thermostat lower than room temperature;
2. Press the reset button on the burner primary control
(relay);
3. Set the thermostat higher than room temperature;
4. If the burner motor does not start or ignition fails, turn
off the disconnect switch and CALL A QUALIFIED
SERVICE TECHNICIAN.
3.3.5 Overfire pressure test
The overfire draft that is taken through the observation port,
located above the burner, is a measurement necessary to
determine if there is a blockage in the heat exchanger or the
flue pipe. Refer to the Technical Specifications in this manual
for overfire pressure values. A high pressure condition may be
caused by excessive combustion air, due to the air band being
too wide open, or a lack of flue draft (chimney effect) or some
other blockage, such as soot in the secondary section of the
heat exchanger or the use of an oversize nozzle input or high
pressure pump.
CAUTION
Do not attempt to start the burner when excess oil has
accumulated, when the furnace is full of vapour or when
the combustion chamber is hot.
3.3.6 Vent Temperature Test
1. After having adjusted the burner combustion, insert a
thermometer into the test hole in the breech pipe;

12
4.2 CLEANING THE BLOCKED VENT
SHUT-OFF DEVICE (BVSO)
4 MAINTENANCE
For continuous safe operation, the Blocked Vent Shut-off
device (BVSO) must be inspected and maintained annually
by a qualified service technician.
WARNING
Electrical shock hazard. 1. Disconnect power to the appliance;
Turn OFF power and fuel to the furnace before any 2. Remove the two screws holding on the BVSO
assembly cover;
disassembly or servicing.
Failure to do so can result in death, bodily injury and/or 3. Remove the cover;
property damage. 4. Remove the two screws holding the control box to the
heat transfer tube assembly. Sliding the control box in
the appropriate direction will unlock it from the heat
transfer tube assembly;
Preventive maintenance is the best way to avoid unnecessary
expense and inconvenience. Have your heating system and
burner inspected by a qualified service technician at regular
intervals. 5. Carefully remove any build-up from the thermal switch
surface;
To maintain the reliability and optimal performance of the
furnace, have a complete combustion check done after the
annual maintenance call. Do not attempt to repair the furnace
or its controls. Call a qualified service technician.
CAUTION
Do not dent or scratch the surface of the thermal switch. If
the thermal switch is damaged it MUST be replaced.
Before calling for repair service check the following points: 6. Clean and remove any build-up or obstruction inside
the heat transfer tube;
1. Check the oil tank gauge and make sure that the valve is
open; 7. Re-mount, lock and fasten the control box with the 2
screws removed in step 4;
2. Check fuses and the circuit breaker;
3. Check if the main disconnect switch is ON ; 8. Re-attach the assembly cover with the screws removed
in step 2;
4. Set the thermostat above room temperature; 9. Re-establish power to the unit.
5. If ignition does not occur, turn off the disconnect switch
and call a qualified service technician.
4.3 CLEANING OF THE BURNER HEAD
When ordering replacement parts, please specify the
complete furnace model number and serial number. Once annually, remove the retention head and electrodes
from the drawer assembly and remove all foreign matter, if
necessary. Also clean the extremity of the burner tube, if
necessary.
4.1 CLEANING THE HEAT EXCHANGER
It is not generally necessary to clean the heat exchanger or
flue pipe every year, but it is advisable to have the oil burner
service technician check the unit before each heating season
to determine whether the cleaning or replacement of parts is
necessary.
4.4 CHANGING THE NOZZLE
Change the nozzle once a year with the one specified in
Table 6.
If a cleaning is necessary, the following steps should be
performed: 4.5 CHANGING THE OIL FILTER
1. Turn OFF all utilities upstream from the furnace; Tank Filter
2. Disconnect the flue pipe; The tank filter should be changed as required. Follow the
manufacturer’s instructions.
3. Remove the flue collar panel located at the front of the
furnace;
Secondary Filter
4. Remove the heat exchanger baffles; The 10 micron, or finer, filter cartridge should be changed
annually. Follow the manufacturer’s instructions.
5. Disconnect the oil line and remove the oil burner;
6. Clean the secondary tubes and the primary cylinder with a
stiff brush and a vacuum cleaner; 4.6 CHANGING THE AIR FILTER
7. Before re-assembling the unit, the heat exchanger and
combustion chamber should be inspected to determine if
replacement is required;
Dirty filters have an impact on the efficiency of the furnace
and increase fuel consumption.
Air filters should be changed at least once a year. Very
dusty conditions, the presence of animal hair and the like
will require more frequent changing or cleaning.
8. After the cleaning replace the heat exchanger baffles, flue
collar plate and oil burner;
9. Readjust the burner for proper operation.

13
5 FURNACE INFORMATION
Model: Serial number:
Furnace installation date:
Service telephone #-Day: Night:
Dealer name and address:
START-UP RESULTS
Nozzle: Pressure: Lb/in2
Burner adjustments: Primary air
Fine air
Drawer Assembly
CO2:
% Smoke scale: (Bacharach)
Gross stack temperature: °F
Ambient temperature: °F
Chimney draft : " W.C.
Overfire draft : " W.C.
Test performed by:

14
Table 6: Technical Specifications
Firing rate (USGPH) * 0,50 0,60 0,70 0,50 0,60
Input (BTU/h) * 70 000 84 000 98 000 70 000 84 000
Maximum Heating capacity, (BTU/h) * 59 000 70 000 81 000 59 000 70 000
Heating temperature rise (Degr. F) *
Flue draft with chimney (inch of w.c.)
Overfire pressure with chimney (inch of w.c.)
Flue pressure with direct vent (inch of w.c.)
Overfire pressure with direct vent (inch of w.c.)
BECKETT BURNER; MODEL AFG (Chimney)
Burner tube insertion length (inches)
Head type
Nozzle (Delavan) ** 0.40 - 60A 0.50 60A 0.60 - 60A 0.40 - 60A 0.50 - 60A
Pump pressure (PSIG)* 175 150 140 175 150
Head/Air setting 4/0 8/0 5/0 (Note 1) 4/0 8/0
AFUE % (From CSA B212 standard and Canadian regulation) *** 85,6% 85,6% 84,3% 85.6% ‡ 85.6% ‡
AFUE % (From ASHRAE 103 standard and US regulation) *** 85,2% 85,1% 83,9% 85.2% ‡ 85.1% ‡
BECKETT BURNER; MODEL NX (Chimney or DV)
Burner tube insertion length (inches)
Head type
Nozzle (Delavan) ** 0.40 - 60W 0.50 60W 0.60 - 60W 0.40 - 60W 0.50 60W
Pump pressure (PSIG) * 155 145 135 155 145
Head/Air setting 2,0 2,75 2.5 (Note 2) 2,0 2,75
AFUE % (From CSA B212 standard and Canadian regulation) *** 86,7% 85,7% 85,0% 86.7% ‡ 85.7% ‡
AFUE % (From ASHRAE 103 standard and US regulation) *** 86,1% 85,4% 84,5% 86.1% ‡ 85.4% ‡
RIELLO BURNER; MODEL 40-F3 (Chimney)
Burner tube insertion length (inches)
Nozzle (Delavan) ** 0.40 - 70A 0.50 - 70A 0.60 - 70A 0.40 - 70A 0.50 - 70A
Pump pressure (PSIG) * 155 145 135 155 145
Combustion air adjustment (turbulator/damper) 0 / 1.5 0 / 2.5 1 / 3.5 0 / 1.5 0 / 2.5
AFUE % (From CSA B212 standard and Canadian regulation) *** 87,0% 86,3% 84,9% 87.0 ‡ 86.3 ‡
AFUE % (From ASHRAE 103 standard and US regulation) *** 86,4% 85,9% 84,5% 86.4% ‡ 85.9% ‡
RIELLO BURNER; MODEL 40-BF3 (Direct vent DV)
Burner tube insertion length (inches)
Nozzle (Delavan) ** 0.40 - 70A 0.50 - 70A 0.60 - 70A 0.40 - 70A 0.50 - 70A
Pump pressure (PSIG) * 155 145 135 155 145
Combustion air adjustment (turbulator/damper) 0 / 1.50 0 / 2 1 / 2.25 0 / 1.50 0 / 2
AFUE % (From CSA B212 standard and Canadian regulation) *** 85,6% 85,3% 84,0% 85.6% ‡ 85.3% ‡
AFUE % (From ASHRAE 103 standard and US regulation) *** 85,1% 85,0% 83,3% 85.1 ‡ 85.0% ‡
Volts - Hertz - Phase
Rated current (Amps)
Minimum ampacity for wire sizing (Amps)
Max. fuse size (Amps)
Control transformer (VA)
External control power available Heating (VA)
Cooling (VA)
Heating blower speed at 0.25" W.C. SP MED-LOW MED-HIGH HIGH
Heating blower speed at 0.50" W.C. SP MED-LOW MED-HIGH HIGH
Motor (HP) / number of speeds
Blower size (diam. x width)
Overall dimensions (width x depth x height)
Supply air opening (width x depth)
Return air opening (width x depth)
Filter size (depth x hieght x thickness)
Shipping weight Lbs/Kg
Air conditioning, maximum output (tons) at 0.5 SP
Note 1: Without Low Firing Baffle # 5880
Note 2: Without Low Firing Baffle # 32229
* INPUT & OUTPUT ADJUSTMENT
- Pump pressure can be adjusted to maintain proper firing rate
- Increase pump pressure if flue gases temperature is under 400oF.
- Adjust the total flue gas temperature between 400oF and 575oF ((330oF and 505oF)net approximately)
** Default Installed Nozzle in bold characters.
*** AFUE values established after minimum 20 hours of operation.
BF3 BF3
2 3/4'' 2 3/4''
2,5 3.0
20'' x 20'' 20'' x 20''
125 / 57 125 / 57
16'' x 19'' 16'' x 19''
19'' x 19'' 19'' x 19''
10'' x 8'' 10'' x 8''
16.875'' x 20 1/8'' x 40 3/4'' 16.875'' x 20 1/8'' x 40 3/4''
30 30
See the ECM air flow table
1/3 HP / 4 speeds 1/2 HP / ECM
40 40
40 40
13.7 12.2
15 15
115 - 60 - 1 115 - 60 - 1
12.2 10.3
F3 WITH AIR INLET DAMPER F3 WITH AIR INLET DAMPER
2 3/4'' 2 3/4''
1 3/4'' 1 3/4''
6 - Slot LQ head 6 - Slot LQ head
2 - Slot L2 head 2 - Slot L2 head
NX56LQ NX56LQ
AFG70MQSS AFG70MQSS
1 3/4'' 1 3/4''
+0.05 à +0.20 +0.05 à +0.20
+0.03 à +0.15 +0.03 à +0.15
-0.06 à -0.025 -0.06 à -0.025
-0.035 à +0.010 -0.035 à +0.010
55 - 85 Degr. F 55 - 85 Degr. F
RATING AND PERFORMANCE
ELECTRICAL SYSTEM
BLOWER DATA
GENERAL INFORMATION
‡ =

Table 7: Airflow data, models with 1/2 HP ECM motors
SW1- HEAT
DIP switch position HEAT INPUT (USGPH) CFM with SW3-ADJ DIP switch position A CFM with SW3-ADJ DIP switch position B CFM with SW3-ADJ DIP switch position C
A (1=OFF, 2=OFF) 0,70 1260 1385 1135
B (1=ON, 2=OFF) 0,60 1050 1155 945
C (1=OFF, 2=ON) 0,50 850 935 765
D (1=ON, 2=ON)
SW2- COOL
DIP switch position A/C size (TON) CFM with SW3-ADJ DIP switch position A CFM with SW3-ADJ DIP switch position B CFM with SW3-ADJ DIP switch position C
A (1=OFF, 2=OFF) 3,0 900 1035 765
B (1=ON, 2=OFF) 2,5 750 860 635
C (1=OFF, 2=ON) 2,0 600 690 510
D (1=ON, 2=ON) 1,5 450 515 380
SW2- COOL
DIP switch position A/C size (TON) CFM with SW3-ADJ DIP switch position A CFM with SW3-ADJ DIP switch position B CFM with SW3-ADJ DIP switch position C
A (1=OFF, 2=OFF) 3,0 1200 1320 1080
B (1=ON, 2=OFF) 2,5 1000 1100 900
C (1=OFF, 2=ON) 2,0 800 880 720
D (1=ON, 2=ON) 1,5 600 660 540
SW4- DELAY
DIP switch position HEAT INPUT (USGPH) PreRun On-Delay CFM Level - Time ShortRun On-Delay CFM Level - Time Off-Delay CFM Level - Time
A (1=OFF, 2=OFF) 0,75 13% - 45 sec. 19% - 30 sec 38% - 3 min.
B (1=ON, 2=OFF) 0,65 13% - 45 sec. 19% - 60 sec 38% - 3 min.
C (1=OFF, 2=ON) 0,50 13% - 60 sec. 13% - 60 sec 38% - 3 min.
D (1=ON, 2=ON) All 13% - 30 sec. 100% - 30 sec 100% - 2 min.
No adjustment
required A/Csize PreRun On-Delay
CFM Level - Time ShortRun On-Delay CFM Level - Time Off-Delay CFM Level - Time
- All No delay No delay 100% - 90 sec.
PreRun and ShortRun are the periods of time when the blower starts at very low CFM to minimize the
distribution of cool air in the system and then runs up to normal speed.
Off Delay is the time required to cool down the coil (heating mode) with low CFMs, to minimize cool draft
in the air distribution system.
DELAY PROFILE FOR COOLING OR HEAT PUMP HEATING MODE
PreRun and ShortRun are the periods of time when the blower starts at very low CFM to minimize the
distribution of cool air in the system and then runs up to normal speed.
Off Delay is the time required to cool down the heat exchanger with low CFMs, to minimize cool draft in the
air distribution system.
DELAY PROFILE FOR OIL HEATING MODE
OIL HEATING MODE
24 VAC input (R) on W only
Same value as DIP switch position
A
CONTINUOUS FAN
24 VAC input (R) on G only
COOLING OR HEAT PUMP HEATING MODE
24 VAC input (R) to G, Y/Y2 and O (for cooling)
In Cooling - Dehumidification mode, with no 24 VAC input to DH, the CFMs are reduced by 15%.
The CFMs shown are reduced by 20% if there is 24 VAC input to Y1 (first stage of 2-stage cooling unit)
15

Table 8: Airflow data, models with 1/3 HP PSC motors
0,10,20,30,40,50,60,70,80,9
HIGH 1230 1185 1150 1095 1050 990 920 810 595
MED-HIGH 1090 1055 1005 970 925 875 810 700 550
MED-LOW 865 860 860 845 795 740 695 600 460
LOW 675 680 690 680 665 640 565 480 390
External Static Pressure ("W.C.)
Speed
Table 9: Minimum clearances from combustible materials
UPFLOW HORIZONTAL DOWNFLOW
FURNACE12.54 cm (1") N/A 2.54 cm (1")
PLENUM AND WARM-AIR DUCT WITHIN 6 ft. OF FURNACE 15.08 cm (2") 2.54cm (1") 5.08 cm (2")
BOTTOM FURNACE2Ø2.54 cm (1")35.08cm (2")4
BACK FURNACE (OPPOSITE SIDE OF THE BURNER) 17.62 cm (3") 2.54cm (1") 7.62 cm (3")
PLENUM OR HORIZONTAL WARM-AIR DUCT WITHIN 6ft.OF FURNACE 25.08 cm (2") 5.08 cm (2") 5.08 cm (2")
FURNACE2N/A 5.08 cm (2") N/A
FLUE PIPE AROUND FLUE PIPE 22.86 cm (9") 22.86 cm (9") 22.86 cm (9")
FRONT FURNACE(BURNER SIDE) 145.72 cm (18") 45.72 cm (18") 45.72 cm (18")
1These are horizontal dimensions
2These are vertical dimensions
3Thisdimension can beobtainedbyusingHorizontalFlow Base# HFB-101or KLASB0701DET
4This dimension can be obtained by using Downflow Base # DFB-102 or KLASB0801DET
LOCATION
SIDES
TOP
16

Figure 9: Furnace dimensions
17

Figure 10: Wiring diagram, 4-speed motor (PSC)
18

Figure 11: Wiring diagram, variable speed motor (ECM)
19

Figure 12: Parts list with 4-speed motor (PSC)
20
B50064H