Dettson COMFORT SUPXX-C120D12 Quick start guide

INSTALLATION INSTRUCTIONS AND HOMEOWNER’S
MANUAL: ELECTRIC FURNACE
Models:
COMFORT & ADVANTAGE COMFORT
(PSC MOTOR)
SUPXX-C120D12
SUPXX-C240D12
SUPXX-C120D20
SUPXX-C240D20
MULTI-POSITION ADVANTAGE
SUPXX-A120D12
SUPXX-A240D12
SUPXX-A120D20
SUPXX-A240D20
INSTALLER / SERVICE TECHNICIAN:
Attention:
Do not tamper with the unit or its controls.
Call a qualified service technician.
USE THE INFORMATION IN THIS MANUAL FOR THE IN-
STALLATION AND SERVICING OF THE FURNACE AND
KEEP THE DOCUMENT NEAR THE UNIT FOR FUTURE
REFERENCE.
HOMEOWNER: Manufactured by: Dettson Industries Inc.
PLEASE KEEP THIS MANUAL NEAR THE FURNACE FOR
FUTURE REFERENCE. Sherbrooke, Qc, Canada
www.dettson.com
Printed in Canada on
100% recycled paper
2017-08-22 X40232 Rev.F

Use or to change
Fan ON speed
Use or to adjust
the balance point
Use or to
change the CFM
per TON in heating
Use or to
change the CFM
per TON in cooling
Use or to
change the
max power ratio
Use or to
activate/deactivate
autobackup
Use or to
change the temperature
rise in autobackup mode
Use or to
change the temperature
rise in electric
heat mode
Use or to
change the CFM
per TON in
de-humidification
SUP modulating quick configuration flowchart
X00485

Table of content
1 SAFETY 3
1.1 DANGER,WARNINGANDCAUTION .................................................. 3
1.2 IMPORTANTINFORMATION ........................................................ 3
1.3 DANGEROFFREEZING ........................................................... 3
2 INSTALLATION 4
2.1 POSITIONINGTHEFURNACE....................................................... 4
2.2 CLEARANCESTOCOMBUSTIBLEMATERIAL ........................................... 4
2.2.1 Heatingunit ................................................ 4
2.2.2 Supplyairducts .............................................. 4
2.3 CONFIGURATIONS ............................................................... 4
2.3.1 Upflowinstallation ............................................. 4
2.3.2 Downflowinstallation............................................ 4
2.3.3 Horizontalinstallation ........................................... 5
2.3.4 Suspendedinstallation........................................... 5
2.4 ELECTRICALSYSTEM ............................................................ 5
2.4.1 Conversion from two wires to one wire supply for models 27kW and more . . . . . . . . . . . . . . 5
2.5 INSTALLATIONOFTHETHERMOSTAT ................................................ 6
2.5.1 Anticipator adjustment (if required) on thermostat equipped with heat anticipator adjustment . . . . 6
2.5.2 Airducts................................................... 7
2.6 SUPPLYAIRADJUSTMENTS........................................................ 7
2.7 INSTALLATIONOFACCESSORIES.................................................... 7
2.7.1 Humidifier and electronic air cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.7.2 Useofaheatpump ............................................ 7
3 OPERATION 8
3.1 START-UP....................................................................... 8
3.2 USE OF MANUAL FURNACE CONTROLS ON ADVANTAGE FURNACE . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 OPERATINGSEQUENCE........................................................... 8
3.3.1 Heatingmode................................................ 8
3.3.2 CoolingMode................................................ 8
3.3.3 Continuousfanspeed ........................................... 8
3.4 AIRFLOWVERIFICATION........................................................... 8
3.4.1 Supply Air Temperature Rise Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4.2 Highlimitverification............................................ 9
4 MAINTENANCE 9
1

4.1 AIRFILTER...................................................................... 9
4.2 MOTORLUBRICATION............................................................. 9
5 FURNACE INFORMATION 10
6 TECHNICAL SPECIFICATIONS 11
List of figures
Figure1: UpflowConfiguration ........................................... 4
Figure2: DownflowConfiguration.......................................... 5
Figure3: HorizontalConfiguration.......................................... 5
Figure 4: Conversion from two to one supply wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 5: 1-stage thermostat, electric heating only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 6: 2-stage thermostat, electric heating only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 7: 1-stage thermostat with outdoor control for 2-stage function, electric heating only . . . . . . . . . . 6
Figure 8: 1-stage thermostat, electric heating and air conditionning . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 9: 2-stage thermostat, electric heating and air conditioning . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure10: Advantagefurnacecontrols........................................ 8
Figure 11: Parts list, SUPREME AdvantagePSC................................... 14
List of tables
Table 1: Supply air adjustment on cooling mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 2: Technical specifications (120V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 3: Technical specifications(240V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 4: Airflow (CFM) - SUPREME with 1/3 HP motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 5: Airflow (CFM) - SUPREME with 1HP motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 6: Parts list, SUPREME AdvantagePSC................................... 15
2

1 SAFETY
1.1 DANGER, WARNING AND
CAUTION
The words DANGER, WARNING and CAUTION are
used to identify the levels of seriousness of certain haz-
ards. It is important that you understand their meaning.
You will notice these words in the manual as follows:
DANGER
Immediate hazards which WILL result in death or
serious bodily and/or material damage.
WARNING
Hazards or unsafe practices which CAN result in
death or serious bodily and /or material damage.
CAUTION
Hazards or unsafe practices which CAN result in
minor bodily and /or material damage.
1.2 IMPORTANT INFORMATION
WARNING
Non-observance of the safety regulations out-
lined in this manual will potentially lead to conse-
quences resulting in death, serious bodily injury
and/or property damage.
WARNING
Installation and repairs performed by unqualified
persons can result in hazards to them and to oth-
ers. Installations must conform to local codes or,
in the absence of such codes, to codes of the
country having jurisdiction.
The information contained in this manual is in-
tended for use by a qualified technician, familiar
with safety procedures and who is equipped with
the proper tools and test instruments.
Failure to carefully read and follow all instructions
in this manual can result in death, bodily injury
and/or property damage.
a) It is the homeowner’s responsibility to engage a
qualified technician for the installation and subse-
quent servicing of this furnace;
b) Do not use this furnace if any part of it was under
water. Call a qualified service technician immedi-
ately to assess the damage and to replace all criti-
cal parts that were in contact with water;
c) Do not store gasoline or any other flammable sub-
stances, such as paper or carton, near the furnace;
d) Never block or otherwise obstruct the filter and/or
return air openings;
e) Ask the technician installing your furnace to show
and explain to you the following items:
i. The main disconnect switch or circuit breaker;
ii. The air filter and how to change it (check
monthly and clean or replace if necessary);
f) Before calling for service, be sure to have the in-
formation of 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.
IMPORTANT : All local and national code re-
quirements governing the installation of central elec-
tric heating equipment, wiring and the flue connec-
tion MUST be followed. Some of the codes that may
apply are:
ANSI/NFPA 70: National Electrical Code CSA C22.1
or CSA C22.10: Canadian Electrical Code Only the
latest issues of these codes may be used, and are
available from either:
The National Fire Protection Agency
1 Batterymarch Park
Quincy, MA 02269
or
The Canadian Standards Association
178 Rexdale Blvd.
Rexdale, Ontario M9W 1R3
1.3 DANGER OF FREEZING
CAUTION
If your furnace is shut down during the cold
weather season, water pipes may freeze, burst and
cause serious water damage. Turn off the water
supply and bleed the pipes.
3

If the heater is left unattended during the cold
weather season, take the following precautions:
a) Close the main water valve in the house and purge
the pipes if possible. Open all the faucets in the
house;
b) 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 re-
quired.
2 INSTALLATION
This furnace is a true multi-position unit, in that it will
function in an upflow, downflow or horizontal configura-
tion 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 configura-
tion and instructions as to how to change to the other
positions are included in this manual.
The unit requires a 120/240 - 208 VAC power supply to
the control panel, thermostat hook-up as shown on the
wiring diagram.
2.1 POSITIONING THE FURNACE
WARNING
FIRE AND EXPLOSION HAZARD
The furnace must be installed in a level position,
never where it will slope toward the front.
Do not store or use gasoline or any other
flammable substances near the furnace.
Non-observance of these instructions will poten-
tially result in death, bodily injury and/or property
damage.
WARNING
This furnace is not watertight and is not designed
for outdoor installation. It must be installed in
such a manner as to protect its electrical compo-
nents from water. Outdoor installation will lead to
a hazardous electrical condition and to premature
failure of the equipment.
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.
In addition, the heater should also be located close to the
center of the air distribution system.
2.2 CLEARANCES TO
COMBUSTIBLE MATERIAL
2.2.1 Heating unit
The furnace is approved for zero clearance to com-
bustible material regardless of the heating capacity.
2.2.2 Supply air ducts
Ducts can be installed with a zero clearance to com-
bustible material.
2.3 CONFIGURATIONS
This furnace requires suitable ductwork.
2.3.1 Upflow installation
The return duct may be installed to the back, to the bot-
tom, on the left side or on the right side of the unit. The
supply duct shall be installed on the top of the unit. Care
should be taken not to damage the wires inside, while
cutting the opening. Instal the filter rack that is supplied
with the unit. It is also recommended to install the blower
door before handling or moving the unit. Refer to Figure
1 for additional details.
Figure 1 – Upflow Configuration
2.3.2 Downflow installation
The return duct may be installed to the back, on the left
side, on the right side or under the unit. The supply duct
shall be installed on the top of the unit.
When the furnace is installed in the downflow position on
a combustible floor, the downflow base DFB-SUP can be
used. Refer to Figure 2 and the installation instructions
provided with the base.
4

Figure 2 – Downflow Configuration
2.3.3 Horizontal installation
The return duct may be installed to the back, on the left
side, on the right side or under the unit. The supply duct
shall be installed on the top of the unit.
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. Refer to Figure 3 for addi-
tional details.
Figure 3 – Horizontal Configuration
2.3.4 Suspended installation
The furnace can be hanged to the ceiling in either up-
flow, downflow or horizontal. Make sure to mount it ap-
propriately and to respect the clearances to combustible
material.
WARNING
The furnace must be properly secured especially
when installed above living space.
Failure to follow this rule can result in death, bod-
ily injury and/or property damage.
2.4 ELECTRICAL SYSTEM
The SUPREME furnace is completely pre-wired and all
field wiring must be connected to the terminal blocks on
the unit. It requires 2 service wires of 240 - 208 volts.
All the 120V models (SUPxx-y120Dzz) require neutral
wire because the motor works under 120VAC.
WARNING
RISK OF FIRE
The conductor sizing must conform to the last edi-
tion of the local or national codes.
Failure to follow this rule can result in death, bod-
ily injury and/or property damage.
Power supply to the unit can be done using cop-
per or aluminum wires. The wire size must be decided in
accordance to unit power consumption, the over current
protection type and capacity, the wire type and length,
and the environment where the unit is installed. If an alu-
minum wire is used, other precautions must be taken to
insure the conformity of the installation. In all cases, all
the factors affecting the wire gauge must be considered
and the installation codes followed.
The exterior of the unit must have an uninterrupted
ground to minimize the risk of bodily harm. A ground
terminal is supplied with the control box for that purpose.
A connector is supplied on the ground terminal to ground
an added accessory.
In the event that wires inside the unit require replace-
ment, these must be copper wires only with same tem-
perature rating and sizes as originals.
2.4.1 Conversion from two wires to one
wire supply for models 27kW and
more
WARNING
RISK OF FIRE
When using one terminal block on models of 27kW
and higher, the installation must be performed
with copper wire ONLY in order to comply with the
Canadian electrical code. The usage of an alu-
minum or copper wire is acceptable on models
25kW and lower.
Move all wires from the two pole terminal to the
three pole terminal following the corresponding colors as
shown in Figure 4.
The breaker and the supply conductors must be sized by
adding the ampacities of the two terminals indicated on
the nameplate. Refer to the electrical diagram Figure 12.
5

Figure 4 – Conversion from two to one supply wires
2.5 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. Some thermostats need to connect
the C terminal on the furnace and thermostat. Install the
thermostat on an interior wall in a location where it will
not be subject to direct sunlight, lamps, air diffusers, fire-
places, etc. Seal openings in walls to avoid air currents
that may influence the operation of the thermostat. Also
refer to the wiring diagrams provided with the heating/air
conditioning unit. The connections must be made as in-
dicated on Figure 5 to Figure 9. Refer to the electrical
diagrams (Figure 12 and Figure 13).
Figure 5 – 1-stage thermostat, electric heating only
Figure 6 – 2-stage thermostat, electric heating only
Figure 7 – 1-stage thermostat with outdoor control
for 2-stage function, electric heating only
Figure 8 – 1-stage thermostat, electric heating and air
conditionning
Figure 9 – 2-stage thermostat, electric heating and air
conditioning
2.5.1 Anticipator adjustment (if required)
on thermostat equipped with heat
anticipator adjustment
Some thermostats are equipped with a heat anticipator
that must be adjusted according to the instructions sup-
plied. This is to ensure that the heating mode is comfort-
able and economical. Generally speaking, on a single
stage thermostat, a reading of the current must be taken
with an ammeter as follows:
1. Move the anticipator to its highest setting, render-
ing it ineffective.
6

2. Remove the wire from the W1 terminal of the fur-
nace and connect an ammeter between the termi-
nal and the wire.
3. Call for heat by raising the set point on the thermo-
stat and allow the furnace to run for 3 to 4 minutes
to reach its peak output.
4. Once the current has stabilized, a reading should
be taken and the anticipator adjusted to that value.
If longer heating cycles are desired, the anticipator
can be set to a higher value
2.5.2 Air ducts
The ducts must be sized such a way as to accommodate
the specified airflow and the available static pressure.
Refer to the applicable local and/or national installation
codes. Insulate the ducts that lead through non-heated
areas. Use flexible supply and return air connectors to
avoid the transmission of vibration. To make the unit run
even quieter, the installer should:
1. Use two elbows between each outlet and the sup-
ply and return air plenum;
2. Cover the vertical sections of the supply and return
air duct with soundproofing material;
3. Use baffles in short radius elbows;
4. Use flexible hangers to suspend the ducts.
A heat pump or an air conditioner can be added to this
furnace, in either the supply or return air duct. Carefully
follow the instructions provided with these appliances to
ensure proper installation and hook-up to the electric fur-
nace. Refrigerant and drainage pipes must in no way
hinder access to the furnace panels.
2.6 SUPPLY AIR ADJUSTMENTS
The supply air must be adjusted based on heating/air
conditioning output and the static pressure of the duct
system. For the desired airflow, refer to Table 1, as well
as Table 4 and Table 5 for the airflow based on static
pressure.
For the adjustment of the airflow on heating mode, to ob-
tain the temperature rise described in the technical spec-
ification table Table 2 and Table 3), the orange wire must
be positioned on the terminal corresponding to the LOW,
MED-LOW, MED-HIGH or HIGH blower speed.
For the adjustment of the airflow on air-cooling mode, to
obtain a sufficient airflow (350 to 450 CFM per Ton), the
blue wire must be positioned on the terminal correspond-
ing to the LOW, MED-LOW, MED-HIGH or HIGH blower
speed.
Blower speeds are adjusted in factory for 0.5 inch W.C.
static pressure.
MOTOR
HP
COOLING
CAPACITY
(0.5 ‘’ w.c.)
BLOWER
SPEED
(Motor 120V)
BLOWER
SPEED
(Motor 240V)
1/3
1.5 LOW LOW
2.0 MED-LOW LOW
2.5 MED-HIGH MED
3.0 HIGH HIGH
1.0
2.5 LOW LOW
3.0 MED-LOW MED-LOW
3.5 MED-LOW MED-HIGH
4.0 MED-HIGH MED-HIGH
5.0 HIGH HIGH
Table 1 – Supply air adjustment on cooling mode
If heating and air-cooling speeds are the same, the
orange wire and the blue wire can be connected on the
same terminal on the motor.
2.7 INSTALLATION OF
ACCESSORIES
WARNING
ELECTRICAL SHOCK HAZARD
Turn OFF electrical power at the fuse box or ser-
vice panel before making any electrical connec-
tion and ensure that a proper ground connection
is made before connecting line voltage.
Failure to do so can result in death or bodily injury.
2.7.1 Humidifier and electronic air cleaner
This unit is equipped with a 120 VAC terminal for the con-
nection of accessories up to a maximum of 2 amps. A
humidifier and an electronic air cleaner can be wired to
terminals L1 and N of the unit. Refer to the wiring dia-
grams in this manual (Figure 12 and Figure 13). A field
supplied 24 VAC transformer can be installed for acces-
sories using 24 VAC. A separate power source must be
used if the accessories draw more than 2 amps.
Some accessories require control relays. A location has
been set aside in the unit for the installation of relays: a
24 VAC (part number L01H009). In addition, a 24 VAC
relay can be wired between terminals W1 and C to be
activated during a call for heat. Refer to the wiring dia-
grams for the location of the relay RACC on the control
panel and in accessory instructions.
2.7.2 Use of a heat pump
When using a heat pump, a thermostat with dual fuel
option or a fossil fuel kit is required that prevents the op-
eration of the electric elements and the heat pump at the
same time. Refer to the instructions provided with the
thermostat or the “Fossil Fuel” kit for the proper wiring of
7

the furnace and the heat pump.
The simultaneous operation of the electric elements and
the heat pump will cause overheating of either unit. The
safety controls of the appliances will shut down the el-
ements or heat pump, since they are not designed to
function in this fashion.
3 OPERATION
3.1 START-UP
Before starting up the unit, be sure to check that the fol-
lowing items are in compliance:
1. The electrical installation and ventilation are con-
form;
2. The blower access door is in place and the blower
rail locking screws are well tightened;
3. The blower speed adjustments for heating and air
conditioning are appropriate and in accordance
with to the specifications in this manual;
4. The thermostat of the room is in heating mode and
is set higher than the ambient temperature.
5. The breakers on front panel are set on the “ON”
position
To start the unit, turn the main electrical switch on.
3.2 USE OF MANUAL FURNACE
CONTROLS ON ADVANTAGE
FURNACE
When there is a demand for heat, the pilot light (L-1)
comes on. Refer to the wiring diagram.
When the “HI/LO” switch is put into the “LO” position, it
will shut down approximately half the elements.
However, it is important to put the switch back to the
“HI” position during the winter months to ensure ad-
equate heating.
Also, this switch must remain in the “HI” position when a
2-stage or outdoor thermostat is used to control the elec-
tric elements of the second stage. Refer to the diagram
in Section 0. The “ON/OFF VENT/FAN” switch engages
the blower in the continuous low speed mode. This will
filter the air and provide for better air distribution in the
building.
The 15 A circuit breaker is there to protect the motor and
the control circuit conductors. If the unit does not func-
tion, press the circuit breaker button to see if it may have
disengaged due to a power surge. If the breaker has to
be pressed again, the unit must be checked by a qualified
service technician.
Figure 10 – Advantage furnace controls
3.3 OPERATING SEQUENCE
3.3.1 Heating mode
1. The thermostat closes the R-W1 circuit (24 VAC),
thereby sending a 24 VAC signal to the blower re-
lay and the sequencer board. The board will then
activate all the first stage relays with a delay of 3
seconds between each element. The motor relay
will be activated, which will start the blower on the
first stage heating speed.
2. The thermostat closes the R-W2 circuit (24 VAC),
thereby sending a 24 VAC signal to the blower relay
and the sequencer board. The board will then acti-
vate all the first and second stage relays with a de-
lay of 3 seconds between each element. The motor
relay will be activated, which will start the blower on
the second stage maximum heating speed.
3. The deactivation of either mode will result in the de-
activation of the corresponding relays with a delay
of 0.5 second between each element.
3.3.2 Cooling Mode
1. The thermostat closes the R-G circuit, thereby ac-
tivating the 24 VAC relay. The blower starts up to
cooling speed.
2. The thermostat closes the R-Y contact, thereby ac-
tivating the compressor relay of the air conditioner.
3.3.3 Continuous fan speed
Activating the “Fan” switch on the thermostat will engage
only the blower at cooling speed.
3.4 AIRFLOW VERIFICATION
Verify the airflow by taking readings of the following
points, while the elements are in heating mode:
8

a) Total amperage of all the heating elements;
b) Voltage at the furnace;
c) Supply air temperature. The point of the reading
must not be affected by radiant heat from the ele-
ments;
d) Return air temperature.
From these readings, one can arrive at an approximate
calculation of the average airflow. To do that, the follow-
ing formula should be used:
Liter/s =0.82 ×amps. ×volts
Diff. temperature °C
CFM =3.1×amps. ×volts
Diff. temperature °F
3.4.1 Supply Air Temperature Rise Test
1. Operate the unit at maximum power for at least 10
minutes;
2. Measure the air temperature in the return air
plenum;
3. Measure 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 usu-
ally sufficient;
4. Calculate the temperature rise by subtracting the
return air temperature from the supply air tempera-
ture.
If the temperature rise exceeds the temperature speci-
fied in Table 2 and Table 3, change to the next higher
blower speed tap, until the temperature rise falls to the
target or below. If the excessive temperature rise can-
not be reduced by increasing fan speed, investigate for
ductwork obstructions or dirty and improper air filter.
CAUTION
It is important to check the airflow and to ascer-
tain that the unit does not operate above the tem-
peratures specified in the Technical Specifications
(Table 2). This is particularly important if a cool-
ing coil or a heat pump has been installed in the
ducts.
Hi-Limit thermal protectors should never need to
engage during the normal functioning of the appli-
ance. They are strictly designed to engage during
the improper functioning of the blower or when the
filter was improperly maintained.
3.4.2 High limit verification
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 electric heaters must deactivate themselves before
the warm air temperature exceeds 200°F (93°C).
Remove the obstruction and the elements should restart
after a few minutes.
4 MAINTENANCE
WARNING
ELECTRICAL SHOCK HAZARD
Turn OFF power to the furnace before any disas-
sembly or servicing.
Failure to do so can result in death, bodily injury
and/or property damage.
Preventive maintenance is the best way to avoid unnec-
essary expense and inconvenience. Have your heating
system inspected by a qualified service technician at reg-
ular intervals. Do not attempt to repair the furnace or its
controls. Call a qualified service technician.
Before calling for repair service, check the following
points:
1. Check fuses or the circuit breakers;
2. Check if the 15 A circuit breaker on the furnace is
disengaged;
3. Set the thermostat higher than room temperature.
If the unit does not start up, cut the power and call
a qualified service technician.
When calling for service or ordering a replacement part,
specify the model and serial number of your appliance.
4.1 AIR FILTER
The disposable filter should be replaced twice a year.
The presence of animal hair, dust, etc. may necessitate
more frequent changes. Dirty filters have an adverse ef-
fect on the performance of the central heating system.
4.2 MOTOR LUBRICATION
Do not lubricate the blower motor, since it is permanently
lubricated.
9

5 FURNACE INFORMATION
Model: .................................................. Serialnumber: ..........................................
Furnaceinstallation date: ...............................
Service telephone# - Day: .............................. Night: ...................................................
Dealer nameand address: ..............................
..........................................................
..........................................................
START-UP RESULTS
Voltage: ...........................................................................................................
Total current consumedby theelements: ..........................................................................
Supply airtemperature: ............................................................................................
Return airtemperature: ............................................................................................
Supply airduct staticpressure: ....................................................................................
Return airduct staticpressure: ....................................................................................
Total pressure: ....................................................................................................
Calculated air flow: ................................................................................................
Currentconsumedby the blowermotor:............................................................................
Currentconsumedby the accessories: ............................................................................
10

6 TECHNICAL SPECIFICATIONS
Table 2 – Technical specifications (120V)
RATING AND SUPxx-x120D12 SUPxx-x120D20
PERFORMANCE Motor 1/2 HP / 240V Motor 1 HP / 240V
Capacity 10 15 18 20 23 25 20 23 25 27 30
Power, total @ 240V / 208V (Kw) 10 / 7.5 15 / 11.3 18 / 13.5 20 /15 23 / 17.3 25 / 18.8 20 /15 23 / 17.3 25 / 18.8 27 / 20.3 30 / 22.5
Power, first stage @ 240V / 208V
(Kw)
5/ 3.8 10 / 7.5 9/ 6.8 10 / 7.5 13 / 9.8 15 / 11.3 10 / 7.5 13 / 9.8 15 / 11.3 15 / 11.3 15 / 11.3
Net capacity @ 240V (BTU/h) / 208V 34,120
25,628
51,180
38,442
61,420
46,130
68,240
51,256
78,480
58,944
85,300
64,070
68,240
51,256
78,480
58,944
85,300
64,070
92,124
69,195
102,360
76,884
Temperature rise range @ 240V (°F)
1
40-60 50-70 60-80 60-80 60-80 70-85 45-65 55-75 54-65 50-70 55-75
ELECTRICAL SYSTEM
Volts - Hertz - Phase 3 wires 120-240/208 - 60 - 1
Electrical element #1 @ 240V / 208V
(Kw)
5/ 3.7 5/ 3.7 4/ 3.1 5/3.7 4/ 3.1 5/ 3.7 5/ 3.7 4/ 3.1 5/ 3.7 5/ 3.7 5/ 3.7
Electrical element #2 @ 240V / 208V
(Kw)
5/ 3.7 5/ 3.7 5/ 3.7 5/3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7
Electrical element #3 @ 240V / 208V
(Kw)
5/ 3.7 4/ 3.1 5/3.7 4/ 3.1 5/ 3.7 4/ 3.1 4/ 3.1 5/ 3.7 5/ 3.7 5/ 3.7
Electrical element #4 @ 240V / 208V
(Kw)
5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 4/ 3.1 5/ 3.7
Electrical element #5 @ 240V / 208V
(Kw)
5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 4/ 3.1 5/ 3.7
Electrical element #6 @ 240V / 208V
(Kw)
4/ 3.1 5/ 3.7
Blower motor Consumption @ 240V
/ 208V (Amp. Max.)
6.8 / 5.9 6.8 / 5.9 6.8 / 5.9 6.8 / 5.9 6.8 / 5.9 6.8 / 5.9 11.5 / 9.9 11.5 / 9.9 11.5 / 9.9 11.5 / 9.9 11.5 / 9.9
Heating Elements Consumption @
240V / 208V (Amp)
41.4 /
35.9
62.1 /
53.8
75.8 /
65.7
82.8 /
71.8
96.5 /
83.6
103.5 /
89.7
82.8 /
71.8
96.5 /
83.6
103.5 /
89.7
113.6 /
98.5
124.3 /
107.7
Total Consumption @ 240V / 208V
(Amp)
48.3 /
41.8
69.0 /
59.7
82.6 /
71.5
89.7 /
77.7
103.3 /
89.5
110.4 /
95.6
94.3 /
81.7
107.9 /
93.5
115.0 /
99.6
125.1 /
108.4
135.7 /
117.6
Ampacity - Terminal block #1 @
240V / 208V (Amp) 2
59.3 /
51.7
83.9 /
73.0
100.0 /
87.0
108.05
/ 94.3
124.7 /
108.3
133.1 /
115.6
114.0 /
99.1
130.2 /
113.1
138.6 /
120.4
60.6 /
52.8
64.8 /
56.4
Ampacity - Terminal block #2 @
240V / 208V (Amp) 2
- - - - - - - - - 90.0 /
78.0
98.4 /
85.2
Breaker size - Terminal block #1 @
240V / 208V (Amp) 2
60 / 60 90 / 80 100 /
90
125 /
100
125 /
125
150 /
125
125 /
100
150 /
125
150 /
125
70 / 60 70 / 60
Breaker size - Terminal block #2 @
240V / 208V (Amp) 2
- - - - - - - - - 90 / 80 100 /
90
BLOWER DATA (factory adjusted for a static pressure of 0.5" W.C.)
Blower speed at 1st stage LOW LOW LOW LOW LOW MED-LOW LOW LOW LOW LOW LOW
Blower speed at 0.50” W.C. stat. LOW MED-LOW MED-LOW MED-HIGH MED-HIGH MED-HIGH LOW LOW MED-LOW MED-LOW MED-LOW
Blower speed at 0.20” W.C. stat. LOW MED-LOW MED-LOW MED-LOW MED-HIGH MED-HIGH LOW LOW MED-LOW MED-LOW MED-LOW
Motor (HP) / number of speeds 1/3 HP / 4 speeds 1 HP / 4 speeds
Nominal blower size (diam. X width) 12 x 8 12 x 9
GENERAL INFORMATION
Overall dim. (width x depth x height) 22" x 22" x 36.5"
Supply 20” x 20”
Return 18” x 18”
Filter quantity and size (1) 20" x 20"
Shipping weight 48 Kg / 105 lbs
Maximum cooling capacity 3 tons 5 tons
1) Select a blower speed that will generate the specified temperature rise. 2) Calculated on the basis of standardC22.2-236.
11

Table 3 – Technical specifications(240V)
RATING AND SUPxx-x240D12 SUPxx-x240D20
PERFORMANCE Motor 1/3 HP / 240V Motor 1 HP / 240V
Capacity 10 15 18 20 23 25 20 23 25 27 30
Power, total @ 240V / 208V (Kw) 10 / 7.5 15 / 11.3 18 / 13.5 20 /15 23 / 17.3 25 / 18.8 20 /15 23 / 17.3 25 / 18.8 27 / 20.3 30 / 22.5
Power, first stage @ 240V / 208V
(Kw)
5/ 3.8 10 / 7.5 9/ 6.8 10 / 7.5 13 / 9.8 15 / 11.3 10 / 7.5 13 / 9.8 15 / 11.3 15 / 11.3 15 / 11.3
Net capacity @ 240V (BTU/h) / 208V 34,120
25,628
51,180
38,442
61,420
46,130
68,240
51,256
78,480
58,944
85,300
64,070
68,240
51,256
78,480
58,944
85,300
64,070
92,124
69,195
102,360
76,884
Temperature rise range @ 240V (°F)
1
25-45 45-60 55-75 60-80 60-80 60-80 55-75 50-70 50-70 55-75 60-80
ELECTRICAL SYSTEM
Volts - Hertz - Phase 2 wires 240/208 - 60 - 1
Electrical element #1 @ 240V / 208V
(Kw)
5/ 3.7 5/ 3.7 4/ 3.1 5/3.7 4/ 3.1 5/ 3.7 5/ 3.7 4/ 3.1 5/ 3.7 5/ 3.7 5/ 3.7
Electrical element #2 @ 240V / 208V
(Kw)
5/ 3.7 5/ 3.7 5/ 3.7 5/3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7
Electrical element #3 @ 240V / 208V
(Kw)
5/ 3.7 4/ 3.1 5/3.7 4/ 3.1 5/ 3.7 5/ 3.7 4/ 3.1 5/ 3.7 5/ 3.7 5/ 3.7
Electrical element #4 @ 240V / 208V
(Kw)
5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 4/ 3.1 5/ 3.7
Electrical element #5 @ 240V / 208V
(Kw)
5/ 3.7 5/ 3.7 5/ 3.7 5/ 3.7 4/ 3.1 5/ 3.7
Electrical element #6 @ 240V / 208V
(Kw)
4/ 3.1 5/ 3.7
Blower motor Consumption @ 240V
/ 208V (Amp. Max.)
2.6 / 2.3 2.6 / 2.3 2.6 / 2.3 2.6 / 2.3 2.6 / 2.3 2.6 / 2.3 5.9 / 5.1 5.9 / 5.1 5.9 / 5.1 5.9 / 5.1 5.9 / 5.1
Heating Elements Consumption @
240V / 208V (Amp)
41.4 /
35.9
62.1 /
53.8
75.8 /
65.7
82.8 /
71.8
96.5 /
83.6
103.5 /
89.7
82.8 /
71.8
96.5 /
83.6
103.5 /
89.7
113.6 /
98.5
124.3 /
107.7
Total Consumption @ 240V / 208V
(Amp)
44.0 /
35.9
64.7 /
56.1
78.4 /
68.0
85.4 /
74.1
99.1 /
85.9
106.1 /
92.0
88.7 /
76.9
102.4 /
88.7
109.4 /
94.8
119.5 /
103.6
130.2 /
112.8
Ampacity - Terminal block #1 @
240V / 208V (Amp) 2
54.3 /
47.3
78.9 /
68.6
95.1 /
82.7
103.5 /
90.0
119.7 /
104.0
128.1 /
111.3
107.4 /
93.3
123.5 /
107.3
132.0 /
114.6
54.0 /
47.0
58.2 /
50.7
Ampacity - Terminal block #2 @
240V / 208V (Amp) 2
- - - - - - - - - 90.0 /
78.0
98.4 /
85.2
Breaker size - Terminal block #1 @
240V / 208V (Amp) 2
60 / 50 80 / 70 100 /
90
125 /
90
125 /
125
150 /
125
125 /
100
125 /
125
150 /
125
60 / 50 60 / 60
Breaker size - Terminal block #2 @
240V / 208V (Amp) 2
- - - - - - - - - 90 / 80 100 /
90
BLOWER DATA (factory adjusted for a static pressure of 0.5" W.C.)
Blower speed at 1st stage LOW LOW LOW LOW LOW MED-LOW LOW LOW LOW LOW LOW
Blower speed at 0.50” W.C. stat. LOW MED-LOW MED-LOW MED-HIGH MED-HIGH MED-HIGH LOW LOW MED-LOW MED-LOW MED-LOW
Blower speed at 0.20” W.C. stat. LOW MED-LOW MED-LOW MED-LOW MED-HIGH MED-HIGH LOW LOW MED-LOW MED-LOW MED-LOW
Motor (HP) / number of speeds 1/3 HP / 3 speeds 1 HP / 4 speeds
Nominal blower size (diam. X width) 12 x 8 12 x 9
GENERAL INFORMATION
Overall dim. (width x depth x height) 22" x 22" x 36.5"
Supply 20” x 20”
Return 18” x 18”
Filter quantity and size (1) 20" x 20"
Shipping weight 48 Kg / 105 lbs
Maximum cooling capacity 3 tons 5 tons
1) Select a blower speed that will generate the specified temperature rise.
2) Calculated on the basis of standardC22.2-236.
12

Furnace equipped with a 1/3 HP / 120 blower motor
Blower External static pressure (inche of W.C.)
Speed 0,2 0,3 0,4 0,5 0,6 0,7 0,8
LOW 660 635 615 595 580 565 540
MED-LOW 840 815 800 775 750 715 670
MED-HIGH 1 025 1 010 995 975 945 900 860
HIGH 1 260 1 240 1 200 1 150 1 110 1 055 975
Furnace equipped with a 1/3 HP / 240 blower motor
Blower External static pressure (inche of W.C.)
Speed 0,2 0,3 0,4 0,5 0,6 0,7 0,8
LOW 660 635 615 595 580 565 540
MED 840 815 800 775 750 715 670
HIGH 1 260 1 240 1 200 1 150 1 110 1 055 975
•Airflow values in cubic feet per minute (CFM) rounded to the nearest 5CFM
•Data taken with air filter in place.
Table 4 – Airflow (CFM) - SUPREME with 1/3 HP motor
Furnace equipped with a 1HP / 120 blower motor
Blower External static pressure (inche of W.C.)
Speed 0,2 0,3 0,4 0,5 0,6 0,7 0,8
LOW 1 110 1 090 1 085 1 080 1 070 1 050 1 005
MED-LOW 1 455 1 430 1 410 1 400 1 380 1 355 1 320
MED-HIGH 1 865 1 830 1 800 1 740 1 705 1 665 1 605
HIGH 2 055 2 045 2 030 2 010 1 980 1 880 1 800
Furnace equipped with a 1HP / 240 blower motor
Blower External static pressure (inche of W.C.)
Speed 0,2 0,3 0,4 0,5 0,6 0,7 0,8
LOW 1 030 1 030 1 030 970 950 935 900
MED-LOW 1 380 1 350 1 310 1 275 1 250 1 225 1 175
MED-HIGH 1 785 1 735 1 730 1 725 1 650 1 610 1 515
HIGH 2 230 2 199 2 110 2 030 1 900 1 815 1 730
•Airflow values in cubic feet per minute (CFM) rounded to the nearest 5CFM
•Data taken with air filter in place.
Table 5 – Airflow (CFM) - SUPREME with 1HP motor
13

Figure 11 – Parts list, SUPREME Advantage PSC
45
1
42 6 8
29
28 27 26
910
47
46
32
53
31 30
49
48
1
71
6363 64 52
62
53 55
56
57
59
61 60
50
58
51
54
33
44 43
35 36
40
34
37 38 39
4241
B50148 rev.C
15
18 19 20 14
11 12 13
21 22 23 24 25
16 17
REVISIONS
REV.
DESCRIPTION
A/C
DATE
PAR
A
Nouveau dessin
21925
2015-03-11
F.H.
B
Changement disjoncteur pour CQC
22326
2015-05-19
F.H.
C
Ajoute support de filtre. Change item 1
22389
2015-07-01
F.H.
14

Table 6 – Parts list, SUPREME Advantage PSC
#Item Description Comments
1B04431 Acoustic insulation
2B04343-04 Left side panel assembly Left panel, items 3 and 1 included
3B04340-02 Left side panel insulation
4B04344-02 Back panel assembly
5B04341 Top back panel insulation
6B04343-02 Right side panel assembly Right panel, items 7 and 1 included
7B04340-01 Right side panel insulation
8B04302-01 Top front panel
9B04312 Breakers support
10 L01J006 Breaker 60 A
11 K0371-A Sequencer card assembly Card and plastic pins
12 B04000-03 Modified 12 positions terminal
13 X02330 Label "Terminal Supreme C/A"
14 B04421 Components support
15 X50060 Cosmetic "Supreme A" 3 breaker
16 X50059 Cosmetic "Supreme A" 2 breaker Supreme 15/18/20kw
17 X50058 Cosmetic "Supreme A" 1 breaker Supreme 10kw
18 L01L006 Indicator light
19 L07F015 Switch SPDT
20 L01J001 Breaker 15 A
21 B04293 Electrical sequencer kit Supreme 27/30kw
22 B04294 Electrical sequencer kit Supreme 23/25kw
23 B04295 Electrical sequencer kit Supreme 18/20kw
24 B04296 Electrical sequencer kit Supreme 15kw
25 B04297 Electrical sequencer kit Supreme 10kw
26 B04275 Top door
27 X50042 Label logo Dettson
28 B04349 Bottom door assembly
29 B04356-03 Blower assembly 1hp (120v-PSC) Supreme 20/23/25/27/30 kw
30 B04356-01 Blower assembly 1/3hp (120v-PSC) Supreme 10/15/18/20/23/25 kw
31 B04356-02 Blower assembly 1/3hp (240v-PSC) Supreme 10/15/18/20/23/25 kw
32 B04356-04 Blower assembly 1hp (240v-PSC) Supreme 20/23/25/27/30 kw
33 Z01I036 Blower 112-9R Supreme 20/23/25/27/30 kw
34 Z01I035 Blower 112-8R Suprême 10/15/18/20/23/25 kw
35 B01889 Motor support band and legs
36 L06K004 Motor 1hp (120v-PSC) Supreme 20/23/25/27/30 kw
37 L06K005 Motor 1hp (240v-PSC) Supreme 20/23/25/27/30 kw
38 L06G007 Motor 1/3hp (120v-PSC) Supreme 10/15/18/20/23/25 kw
39 L06G015 Motor 1/3hp (240v-PSC) Supreme 10/15/18/20/23/25 kw
40 B04287 Electrical blower kit
41 L01I001 Capacitor 5 uF Supreme (120 PSC) 10 @ 25 kw
42 L01I003 Capacitor 10 uF Supreme (240 PSC) 10 @ 25 kw
43 L01I005 Capacitor 15 uF Supreme (120 PSC - 1 hp) 20 @ 30 kw
44 B01024 Capacitor support
45 B04303 Floor
46 B04309 Fan slide
47 B04304 Fan separator
48 B03299-02 Filter holder tip
49 B03298-02 Filter support outline
50 R02N028 Hi-limit 125+/-5.5C
51 B04308 Hi-limit deflector
52 B04305 Front separator
53 L01H030 Relay DPST 22 VDC
54 B04369 Electrical power kit
55 L01H009 Relay 24 VAC
56 B04351-02 Element assembly 5kw
57 B04351-01 Element assembly 4kw
58 B04315-01 Element plate
59 L01F010 Transformer 208/240/24
60 L99F007 Terminal bloc 600V/175A (1423570) 3 positions
61 L99F008 Terminal bloc 600V/175A (1422570) 2 positions (27 & 30 kW only)
62 B04359 Blower grill
63 B04306 Deflector
64 B04307 Element support
Accessories
DFB-SUP Downflow base (ref: B03310-03)
15