Dettson Supreme Comfort Series Assembly instructions

Printed in Canada
Printed on 100% recycled paper
2015-07-08
X40232 Rev. C
Models:
Comfort
SUPXX-C120D12
SUPXX-C240D12
SUPXX-C120D20
SUPXX-C240D20
Advantage
SUPXX-A120D12
SUPXX-A240D12
SUPXX-A120D20
SUPXX-A240D20
COMFORT & ADVANTA E
(PSC MOTOR)
Caution
: 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 AND
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.
Manufactured by :
Industries Dettson inc.
Sherbrooke, Québec - Canada
www.dettson.ca

2
TABLE OF CONTENT
1- SAFETY ...................................................... 3
1.1- DANGER, WARNING AND CAUTION............3
1.2- IMPORTANT INFORMATION .........................3
1.3- DANGER OF FREEZING ................................3
2- INSTALLATION .......................................... 3
2.1- POSITIONING THE FURNACE.......................4
2.2- CLEARANCES TO COMBUSTIBLE
MATERIAL .............................................................4
2.2.1- Heating unit ............................................................4
2.2.2- Supply air ducts .....................................................4
2.3- CONFIGURATIONS.........................................4
2.3.1- Upflow installation .................................................4
2.3.2- Downflow installation ............................................4
2.3.3- Horizontal installation ...........................................4
2.4- ELECTRICAL SYSTEM...................................4
2.4.1- Conversion from two to one supply wires for
model over 27kW ..................................................................5
2.5- INSTALLATION OF THE THERMOSTAT ......5
2.5.1- Anticipator adjustment (if required) on
thermostat equipped with heat anticipator adjustment ....6
2.5.2- Air ducts .................................................................6
2.6- SUPPLY AIR ADJUSTMENTS........................6
2.7- INSTALLATION OF ACCESSORIES..............7
2.7.1- Humidifier and electronic air cleaner ...................7
2.7.2- Use of a heat pump................................................7
3- OPERATION ............................................... 7
3.1- START-UP .......................................................7
3.2- USE OF MANUAL FURNACE CONTROLS ...7
3.3- OPERATING SEQUENCE...............................7
3.3.1- Heating mode .........................................................7
3.3.2- Cooling mode.........................................................8
3.3.3- Continuous fan speed ...........................................8
3.4- AIRFLOW VERIFICATION ..............................8
3.4.1- Supply Air Temperature Rise Test .......................8
3.4.2- High limit verification ............................................8
4- MAINTENANCE.......................................... 8
4.1- AIR FILTER .....................................................8
4.2- MOTOR LUBRICATION .................................. 8
5- FURNACE INFORMATION......................... 9
TABLES
Table 1: Supply air adjustment on cooling mode.............6
Table 2: Technical specifications ................................... 10
Table 3: Airflow (CFM) - SUPREME with 1/3HP motor ....11
Table 4: Airflow (CFM) - SUPREME with 1HP motor .......11
Table 5: Parts list, SUPREME Comfort.............................15
Table 6: Parts list, SUPREME Advantage .......................17
FIGURES
Figure 1: Upflow installation.............................................4
Figure 2: Downflow installation ........................................4
Figure 3: Horizontal installation........................................4
Figure 4 : Conversion from two to one supply wires........5
Figure 5: 1-stage thermostat, electric heating only..........5
Figure 6: 2-stage thermostat, electric heating only..........5
Figure 7: 1-stage thermostat with outdoor control for 2-
stage function, electric heating only.................................5
Figure 8: 1-stage thermostat, electric heat and cooling
application ........................................................................6
Figure 9: 2-stage thermostat, electric heating and air
conditioning ...................................................................... 6
Figure 10 : Advantage furnace controls...........................7
Figure 11 : Furnace dimensions ....................................11
Figure 12 : Electrical diagram SUPREME Comfort PSC ..12
Figure 13 : Electrical diagram SUPREME Advantage PSC
.......................................................................................13
Figure 14: Parts list, SUPREME Comfort .........................14
Figure 15: Parts list, SUPREME Advantage .....................16

3
1- SAFETY
1.1- DANGER, WARNING AND CAUTION
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:
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 outlined in this
manual will potentially lead to consequences 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 others. Installations
must conform to local codes or, in the absence of same, to
codes of the country having jurisdiction.
The information contained in this manual is intended 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 subsequent
servicing of this furnace;
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;
c. Do not store gasoline or any other flammable
substances, such as paper and 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
information 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 requirements
governing the installation of central electric heating equipment,
wiring and the flue connection 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.
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 required.
2- INSTALLATION
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.

4
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 potentially result
in death, bodily injury and/or property damage.
CAUTION
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 components 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 combustible
material regardless of the heating capacity.
2.2.2- Supply air ducts
Ducts can be installed with a zero clearance to combustible
material.
2.3- CONFIGURATIONS
This furnace requires suitable ductwork.
2.3.1- Upflow installation
The return duct may be installed to the back, the bottom, 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 installation
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.
Figure 2: Downflow installation
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 additional details.
Figure 3: Horizontal installation
2.4- ELECTRICAL SYSTEM
The S UPREME furnace is completely pre-wired and all field wiring
must be connected to the terminal blocks on the unit. It requires

5
120/240 - 208 voltage. Models using a 120V motor require a 3-
wire power supply plus an uninterrupted ground.
WARNING
Risk of fire.
The conductor sizing must conform to the last edition of the
local or national codes.
Failure to follow this rule can result in death, bodily injury
and/or property damage.
Power supply to the unit can be done using copper 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 aluminum 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 replacement, these
must be copper wires only with same temperature rating and
sizes as originals.
2.4.1- Conversion from two wire to one wire supply for
models over 25kW
WARNING
Risk of fire.
When using one terminal block on models over 25kW, the
installation must be performed with copper wire ONLY in
order to comply with the Canadian electrical code. The
usage of an aluminum 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.
Figure 4 : Conversion from two to one supply wires
Before After
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, fireplaces, 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
indicated on Figure 5 to Figure 9. Refer to 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

6
Figure 8: 1-stage thermostat, electric heating and cooling
application
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 supplied. This is to
ensure that the heating mode is comfortable 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, rendering it
ineffective.
2. Remove the wire from the W1 terminal and connect an
ammeter between the terminal and the wire.
3. Call for heat by raising the set point on the thermostat 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:
a. Use two elbows between each outlet and the supply and
return air plenum;
b. Cover the vertical sections of the supply and return air duct
with soundproofing material;
c. Use baffles in short radius elbows;
d. 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 furnace. 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 3 and
Table 4 for the airflow based on static pressure.
For the adjustment of the airflow on heating mode, to obtain the
temperature rise described in the technical specification table
(Table 2), the red 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 corresponding to the LOW, MED-
LOW, MED-HIGH or HIGH blower speed.
Blower speeds are adjusted in factory for 0.5 inch static
pressure.
Table 1: Supply air adjustment on cooling mode
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
If heating and air-cooling speeds are the same, the red wire and
the blue wire can be connected on the same terminal on the
motor.

7
2.7- INSTALLATION OF ACCESSORIES
WARNING
Electrical shock hazard.
Turn OFF electrical power at the fuse box or service panel
before making any electrical connection 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 connection
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 diagrams in this manual (Figure 12 and
Figure 13). A field supplied 120/24 VAC transformer can be
installed for accessories 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 diagrams for the location of the relay
RACC on the control panel.
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 operation 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 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 elements 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 following
items are in compliance:
1. The electrical installation and ventilation;
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 according 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
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 adequate
heating.
Also, this switch must remain in the “HI” position when a 2-stage
or outdoor thermostat is used to control the electric elements of
the second stage. Refer to the diagram in Section 2.5-.
The “ON/OFF VENT/FAN” switch engages the blower in the
continuous 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 function, 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
activating the blower relay 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
activating the blower relay and the sequencer board. The
board will then activate all the first and second stage relays
with a delay of 3 seconds between each element. The motor
relay will be activated, which will start the blower on the
second stage heating speed.
3. The deactivation of either mode will result in the
deactivation of the corresponding relays with a delay of 0.5
second between each element.

8
3.3.2- Cooling mode
1. The thermostat closes the R-G circuit, thereby activating the
24 VAC relay. The blower starts up to cooling speed.
2. The thermostat closes the R-Y contact, thereby activating
the compressor relay of the air conditioner.
3.3.3- Continuous fan speed
The blower will also start up to cooling speed by way of the “Fan”
switch on the thermostat.
3.4- AIRFLOW VERIFICATION
Verify the airflow by taking readings of the following points, while
the elements are in heating mode:
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 elements;
d. Return air temperature.
From these readings, one can arrive at an approximate
calculation of the average airflow. To do that, the following
formula should be used:
0.82 x amps. x volts
Liter/s= -------------------------
Diff. temperature ˚C
3.1 x amps. x volts
CFM = ------------------------
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 usually sufficient;
4. Calculate the temperature rise by subtracting the return air
temperature from the supply air temperature.
If the temperature rise exceeds the temperature specified in
Table 2, change to the next higher blower speed tap, until the
temperature rise falls to the target or below. If the excessive
temperature rise cannot 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 ascertain that the
unit does not operate above the temperatures specified in
the Technical Specifications (Table 2). This is particularly
important if a cooling 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 appliance. 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 disassembly or
servicing.
Failure to do so can result in death, bodily injury and/or
property damage.
Preventive maintenance is the best way to avoid unnecessary
expense and inconvenience. Have your heating system
inspected by a qualified service technician at regular 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
A 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 effect 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: Serial number:
Furnace installation date:
Service telephone # - Day: Night:
Dealer name and address:
START-UP RESULTS
Voltage:
Total current consumed by the elements:
Supply air temperature:
Return air temperature:
Supply air duct static pressure:
Return air duct static pressure:
Total pressure:
Calculated air flow:
Current consumed by the blower motor:
Current consumed by the accessories:

10
Table 2: Technical specifications
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 apa ity@ 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 45-65 50-70 55-75
Volts - Hertz - Phase
Ele tri al 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
Ele tri al 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
Ele tri al 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
Ele tri al 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
Ele tri al element #5 @ 240V / 208V
(Kw) 5 / 3.7 5 / 3.7 5 / 3.7 5 / 3.7 4 / 3.1 5 / 3.7
Ele tri al 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 Consum ption @
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 Consum ption @ 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
Ampa ity - Terminal blo k #1 @ 240V
/ 208V ² 59.3 / 51.7 83.9 / 73.0 100.0 / 87.0 108.5 / 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
Ampa ity - Terminal blo k #2 @ 240V
/ 208V ² ---------90.0 / 78.0 98.4 / 85.2
Breaker size - Terminal blo k #1 @
240V / 208V 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 blo k #2 @
240V / 208V ² ---------90 / 80 100 / 90
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. press. LOW MED-LOW MED-LOW MED-HIGH MED-HIGH M ED-HIGH LOW LOW MED-LOW MED-LOW MED-LOW
Blower speed at 0.20" W.C. stat. press. LOW MED-LOW MED-LOW M ED-LOW MED-HIGH MED-HIGH LOW LOW MED-LOW MED-LOW MED-LOW
Motor (HP) / num ber of speeds
Nominal blower size (diam. X width)
Overall dim. (width x depth x height)
Supply
Return
Filter quantity and size
Shipping weight
Maximum ooling apa ity
ATINGS AND PE FO M ANCE SUPxx-x120D12
1/3 HP / 120V Motor
SUPxx-x120D20
1 HP / 120V Motor
48 Kg / 105 lbs
ELECT ICAL SYSTEM
3 wires 120-240/208 - 60 - 1
BLOWE DATA (factory adjusted for a static pressure of 0.5" W.C.)
1/3 HP / 4 speeds 1 HP / 4 speeds
12 x 8 12 x 9
GENE AL INFO MATION
22" x 22" x 36.5"
20" x 20"
19" x 19"
(1) 20" x 20"
3 tons 5 tons
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 apa ity@
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
Tem perature 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
Volts - Hertz - Phase
Ele tri al 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
Ele tri al 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
Ele tri al 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
Ele tri al 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
Ele tri al element #5 @
240V
/ 208V
(Kw)
5 / 3.7 5 / 3.7 5 / 3.7 5 / 3.7 4 / 3.1 5 / 3.7
Ele tri al 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 Consum ption @
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 Consum ption @
240V
/ 208V
(Amp)
44.0 / 38.2 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
Ampa ity - Terminal blo k #1 @
240V
/ 208V 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
Ampa ity - Terminal blo k #2 @
240V
/ 208V ²
---------90.0 / 78.0 98.4 / 85.2
Breaker size - Terminal blo k #1 @
240V
/ 208V 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 blo k #2 @
240V
/ 208V ²
---------90 / 80 100 / 90
Blower speed at 1st stage
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
Blower speed at 0.50" W.C. stat. press.
LOW
LOW
LOW
LOW
MED
MED
LOW
MED-LOW
MED-LOW
MED-LOW
MED-LOW
Blower speed at 0.20" W.C. stat. press.
LOW
LOW
LOW
LOW
MED
MED
LOW
MED-LOW
MED-LOW
MED-LOW
MED-LOW
Motor (HP) / num ber of speeds
Nominal blower size (diam . X width)
Overall dim. (width x depth x height)
Supply
Return
Filter quantity and size
Shipping weight
Maximum ooling apa ity
3 tons
5 tons
1) Sele t a blower speed that will generate the spe ified temperature rise.
2) Cal ulated on the basis of standard C22.2-236.
ATINGS AND PE FO M ANCE SUPxx-x240D12
1/3 HP / 240V Motor
SUPxx-x240D20
1 HP / 240V Motor
48 Kg / 105 lbs
ELECT ICAL SYSTEM
2 wires 240/208 - 60 - 1
BLOWE DATA (factory adjusted for a static pressure of 0.5" W.C.)
1/3 HP / 3 speeds
1 HP / 4 speeds
12 x 8
12 x 9
GENE AL INFO MATION
22" x 22" x 36.5"
20" x 20"
18" x 18"
(1) 20" x 20"

11
Table 3: Airflow (CFM) - S UPREME with 1/3HP motor
SUPREME equipped with a 1/3 HP / 120V blower motor
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
SUPREME equipped with a 1/3 HP / 240V blower motor
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 5 CFM
Data taken with air filter in place.
Blower
speed
External static pressure (inche of W.C.)
Blower
speed
External static pressure (inche of W.C.)
Table 4: Airflow (CFM) - S UPREME with 1HP motor
SUPREME equipped with a 1 HP / 120V blower motor
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
SUPREME equipped with a 1 HP / 240V blower motor
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 5 CFM
Data taken with air filter in place.
Blower
speed
External static pressure (inche of W.C.)
Blower
speed
External static pressure (inche of W.C.)
Figure 11 : Furnace dimensions

12
Figure 12 : Electrical diagram, S UPREME Comfort PSC

13
Figure 13 : Electrical diagram, S UPREME Advantage PSC

14
Figure 14: Parts list, S UPREME Comfort PSC

15
Table 5: Parts list, S UPREME Comfort PSC
# Item Description Comments
1 B04431 Acoustic insulation
2 B04343-03 Left side panel assembly Left panel, items 3 and 1 included
3 B04340-02 Left side panel insulation
4 B04344-01 Back panel assembly
5 B04341 Top back panel insulation
B04343-01 Right side panel assembly Right panel, items 7 and 1 included
7 B04340-01 Right side panel insulation
8 B04302-02 Top front panel
9 L01J00 Breaker 0 A
10 B04310 Breakers support
11 B043 8 Sequencer card assembly Card and plastic pins
12 B04311 Components support
13 L01J001 Breaker 15 A
14 B04000-03 Modified 12 positions terminal
15 X02330 Label "Terminal Supreme C/A"
1 B04288 Electrical sequencer kit Supreme 18/20 kW
17 B04289 Electrical sequencer kit Supreme 15 kW
18 B04290 Electrical sequencer kit Supreme 10 kW
19 B043 5 Door assembly
20 B0435 -01 Blower assembly 1/3hp (120V-PSC) Supreme 10/15/18/20 kW
21 B0435 -02 Blower assembly 1/3hp (240V-PSC) Supreme 10/15/18/20 kW
22 B0435 -03 Blower assembly 1hp (120V-PSC) Supreme 20 kW
23 B0435 -04 Blower assembly 1hp (240V-PSC) Supreme 20 kW
24 Z01I03 Blower 112-9R Supreme 20 kW
25 Z01I035 Blower 112-8R Supreme 10/15/18/20 kW
2 B01889 Motor support band and legs
27 L0 K004 Motor 1hp (120v-PSC) Supreme 20/ kW
28 L0 K005 Motor 1hp (240v-PSC) Supreme 20 kW
29 L0 G007 Motor 1/3hp (120v-PSC) Supreme 10/15/18/20 kW
30 L0 G015 Motor 1/3hp (240v-PSC) Supreme 10/15/18/20 kW
31 B04287 Electrical blower kit
32 L01I001 Capacitor 5 uF Supreme (120 PSC) 10/15/18/20 kW
33 L01I003 Capacitor 10 uF Supreme (240 PSC) 10/15/18/20 kW
34 L01I005 Capacitor 15 uF Supreme (120 PSC-1 hp) 20 kW
35 B01024 Capacitor support
3 B04303 Floor
37 B04309 Fan slide
38 B04304 Fan separator
39 B03299-02 Filter holder tip
40 B03298-02 Filter support outline
41 R02N028 Hi-limit 125+/-5.5C
42 B04308 Hi-limit deflector
43 B04305 Front separator
44 L01H030 Relay DPST 22 VDC
45 B043 9 Electrical power kit Supreme 10 @ 20kW
4 L01H009 Relay 24 VAC
47 B04351-02 Element assembly 5 kW
48 B04351-01 Element assembly 4 kW
49 B04315-01 Element plate
50 L01F010 Transformer 208/240/24
51 L99F007 Terminal bloc 00V/175A (1423570)
52 B04359 Blower grill
53 B0430 Deflector
54 B04307 Element support
Accessories
DFB-SUP Downflow base (ref: B03310-03)

16
Figure 15: Parts list, S UPREME Advantage PSC

17
Table 6: Parts list, S UPREME Advantage PSC
#
Item
Description
Comments
1
B04431
Acoustic insulation
2
B04343
-
04
Left side panel assembly
Left panel
,
item
s
3
and 1
included
3
B04340
-
02
Left side panel insulation
4
B04344
-
02
Back panel assembly
5
B04341
Top back panel insulation
6
B04343
-
02
Right side
panel assembly
Right panel
, items
7
and 1
included
7
B04340
-
01
Right side panel insulation
8
B04302
-
01
Top front panel
9
B04312
Breakers support
10
L01J00
Breaker 0 A
11
B043 8
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
X500 0
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
L01L00
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
B0429
Electrical sequencer kit
Supreme 15kw
25
B04297
Electrical sequencer kit
Supreme 10kw
26
B04275
T
op door
27
X50042
Label logo Dettson
28
B04349
Bottom door assembly
29
B0435
-
03
Blower assembly 1hp (120v
-
PSC)
Supreme 20/23/25/27/30 kw
30
B0435
-
01
Blower assembly 1/3hp (120v
-
PSC)
Supreme 10/15/18/20/23/25 kw
31
B0435
-
02
Blower assembly 1/3hp (240v
-
PSC)
Supreme 10/15/18/20/23/25 kw
32
B0435
-
04
Blower assembly 1hp (240v
-
PSC)
Supreme 20/23/25/27/30 kw
33
Z01I03
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
L0 K004
Motor 1hp (120v
-
PSC)
Supreme 20/23/25/27/30 kw
37
L0 K005
Motor 1hp (240v
-
PSC)
Supreme 20/23/25/27/30 kw
38
L0 G007
Motor
1/3hp (120v
-
PSC)
Supreme 10/15/18/20/23/25 kw
39
L0 G015
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
B043 9
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 00V/175A (1423570)
3 positions
61
L99F008
Terminal bloc 00V/175A (1422570)
2 positions (27 & 30 kW only)
62
B04359
Blower grill
63
B0430
Deflector
64
B04307
Element
support
Accessories
DFB
-
SU
Downflow base
(ref: B03310
-
03)