Dettson CC15-M-V Assembly instructions

INSTALLATION INSTRUCTIONS AND HOMEOWNER’S MANUAL:
GAS FIRED FURNACE
MODULATING GAS FURNACE
MULTIPOSITION
MODEL
CC15-M-V
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.
Caution:
This furnace must be intalled with the moudulating thermostat R02P030. If the furnace is to be installed with the modulating
cooling option, use the communicating thermostat R02P030. Do not tamper with the unit or its controls. Call a qualified service
technician.
HOMEOWNER: Please keep this manual near the furnace for future reference.
Manufactured by: Dettson Industries Inc. Sherbrooke, Qc, Canada www.dettson.com
Gas furnace manufactured on or after May 1, 2017 are not permitted to be used in Canada for heatingof buildings or structures under construction
Printed in Canada on
100% recycled paper
2018-02-14 X40235 Rev.D

Table of content
1 SAFETY 7
1.1 SAFETYLABELINGANDWARNINGSIGNS............................................. 7
1.2 IMPORTANTINFORMATION ........................................................ 7
1.3 DETECTIONSYSTEMS ............................................................ 9
1.4 DANGEROFFREEZING ........................................................... 10
2 INTRODUCTION 10
2.1 CODESANDSTANDARDS.......................................................... 10
2.1.1 Safety.................................................... 10
2.1.2 Generalinstallation ............................................ 10
2.1.3 Combustion and and air ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.4 Ductsystems ............................................... 11
2.1.5 Acoustical lining and fibrous glass duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.6 Gas piping and pipe pressure testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.7 Electricalconnections ........................................... 11
2.2 ELECTROSTATICDISCHARGE ...................................................... 11
2.3 LOCATION...................................................................... 11
2.3.1 Location relative to cooling equipement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 ALIZÉ COOLING UNIT 13
3.1 THERMOSTATUSINGALIZÉSYSTEM................................................. 13
3.2 POSITIONOFTHEINTERFACEBOARD ............................................... 13
3.3 WIRES CONNECTIONS WITH THE INTERFACE BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 INSTALLATION 15
4.1 UPFLOW ....................................................................... 15
4.1.1 Condensatedrainconnection ...................................... 15
4.2 DOWNFLOW .................................................................... 15
4.2.1 Condensatedrainconnection ...................................... 15
4.3 HORIZONTAL.................................................................... 16
4.3.1 Condensatedrainconnection ...................................... 16
4.4 VENTINGDRAINAGE ............................................................. 16
4.5 MULTIPOSITION PRESSURE SWITCH CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5 DUCT INSTALLATION 21
1

5.1 GENERALREQUIREMENTS ........................................................ 21
5.2 SMARTDUCTSYSTEM............................................................ 21
5.3 RETURNAIRCONNECTIONS ....................................................... 21
5.4 SUPPLYAIRDUCTS .............................................................. 21
5.4.1 Ductworkacoutiscaltreatment...................................... 21
6 GAS SUPPLY AND PIPING 22
6.1 GENERAL ...................................................................... 22
6.2 SETTINGGASPRESSURE ......................................................... 22
6.3 PROPANECONVERSION .......................................................... 22
6.4 GASPIPEGROMMET ............................................................. 23
7 ELECTRICAL WIRING 26
7.1 120VWIRING ................................................................... 26
7.2 24VWIRING .................................................................... 26
7.3 THERMOSTAT ................................................................... 26
7.4 ALTERNATEPOWERSUPPLY ....................................................... 26
8 VENTING AND COMBUSTION AIR PIPING 29
8.1 GENERAL ...................................................................... 29
8.2 MATERIAL...................................................................... 29
8.3 DIRECTVENT................................................................... 29
8.4 NONDIRECTVENT............................................................... 29
8.5 TERMINATION REQUIREMENTS OR THE PROVINCE OF ALBERTA AND SASKATCHEWAN . . . . . . . . 30
8.6 SPECIAL VENTING REQUIREMENTS FOR INSTALLATION IN CANADA . . . . . . . . . . . . . . . . . . . . . . . . 30
8.7 SIZEDEVENTANDCOMBUSTIONAIRPIPES .......................................... 30
8.8 CONNECTINGTOFURNACE........................................................ 30
8.8.1 Combustionairpiping .......................................... 32
8.8.2 Exhaustventpiping............................................ 32
8.9 INSTALLINGTHEVENTTERMINATION ................................................ 32
8.9.1 Concentricvent .............................................. 32
8.9.2 Twopipetermination ........................................... 32
9 START UP, ADJUSTEMENT AND SAFETY CHECK 34
9.1 TOSTARTFURNACE.............................................................. 34
9.1.1 Lightinginstruction ............................................ 34
9.2 UNITOPERATIONHAZARD......................................................... 34
9.3 SETUPSWITCHES ............................................................... 34
9.4 NORMALOPERATION............................................................. 35
9.5 FAULTCODERESET.............................................................. 35
9.6 DIAGNOSTIQUEFEATURES ........................................................ 35
9.7 SEQUENCEOFOPERATION........................................................ 35
9.8 SETTINGINPUTRATE............................................................. 35
10 THERMOSTAT AND CONTROLS 36
2

10.1 NON-COMMUNICATING MODULATING THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
10.2THERMOSTATINPUT ............................................................. 36
10.3FUSE ......................................................................... 36
10.4120VACTERMINALS ............................................................. 36
10.4.1 Electronic air cleaner EAC (E103) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
10.4.2HUMterminal ............................................... 36
10.5Steppergasvalvecontrol ........................................................... 36
10.6Connector15-pins ................................................................ 37
10.7ECMmotorconnection ............................................................. 37
10.8COMMUNICATIONSL.E.D........................................................... 37
10.9MEMORYCARD ................................................................. 37
10.10REPLACINGFURNACECONTROL ................................................... 37
10.11DIPSWITCH .................................................................... 38
10.11.1Heatadjust ................................................. 38
10.11.2Coolingairflowselect ........................................... 38
10.11.3Heatriseadjust .............................................. 38
10.11.4Continuousfanspeed ........................................... 38
10.11.5Furnacetestmode ............................................ 38
11 USER’S INFORMATION MANUAL 40
11.1 WHAT TO DO IF YOU SMELL GAS QUE FAIRE SI VOUS SENTEZ DU GAZ . . . . . . . . . . . . . . . . . . . . . 40
11.2OPERATINGYOURFURNACE....................................................... 40
11.3LIGHTINGINSTRUCTION .......................................................... 40
12 FAULT CODES 41
12.1D1............................................................................ 41
12.1.1Description ................................................. 41
12.1.2Causes ................................................... 41
12.1.3Solutions .................................................. 41
12.2D4............................................................................ 41
12.2.1Description ................................................. 41
12.2.2Causes ................................................... 41
12.2.3Solutions .................................................. 41
12.3D5............................................................................ 41
12.3.1Description ................................................. 41
12.3.2Causes ................................................... 41
12.3.3Solutions .................................................. 42
12.4D6............................................................................ 42
12.4.1Description ................................................. 42
12.4.2Causes ................................................... 42
12.4.3Solutions .................................................. 42
12.5h-nomodulation ................................................................. 42
12.5.1Description ................................................. 42
12.5.2Causes ................................................... 42
12.5.3Solutions .................................................. 42
12.610-Furnacelock-out .............................................................. 42
12.6.1Description ................................................. 42
12.6.2Causes ................................................... 42
12.6.3Solutions .................................................. 42
3

12.711-Failedignition ................................................................ 43
12.7.1Description ................................................. 43
12.7.2Causes ................................................... 43
12.7.3Solutions .................................................. 43
12.812-LowFlamesense.............................................................. 43
12.8.1Description ................................................. 43
12.8.2Causes ................................................... 43
12.8.3Solutions .................................................. 43
12.913-Flamelost ................................................................... 43
12.9.1Description ................................................. 43
12.9.2Causes ................................................... 44
12.9.3Solutions .................................................. 44
12.1014-Unexpectedflame ............................................................. 44
12.10.1Description ................................................. 44
12.10.2Causes ................................................... 44
12.10.3Solutions .................................................. 44
12.1116-IgniterFail ................................................................... 44
12.11.1Description ................................................. 44
12.11.2Causes ................................................... 44
12.11.3Solutions .................................................. 44
12.1222-Mainhighlimitopen............................................................ 44
12.12.1Description ................................................. 44
12.12.2Causes ................................................... 44
12.12.3Solutions .................................................. 44
12.1326-LineNeutralReverse ........................................................... 45
12.13.1Description ................................................. 45
12.13.2Causes ................................................... 45
12.13.3Solutions .................................................. 45
12.1430-ControlBoardFuseBlown ....................................................... 45
12.14.1Description ................................................. 45
12.14.2Causes ................................................... 45
12.14.3Solutions .................................................. 45
12.1533 - MRLC (Manual Reset Limit Contrl Open) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
12.15.1Description ................................................. 45
12.15.2Causes ................................................... 45
12.15.3Solutions .................................................. 45
12.1644-LowPressureControlSwitchClosed................................................ 45
12.16.1Description ................................................. 45
12.16.2Causes ................................................... 46
12.16.3Solutions .................................................. 46
12.1745-LowPressureControlSwitchOpen................................................. 46
12.17.1Description ................................................. 46
12.17.2Causes ................................................... 46
12.17.3Solutions .................................................. 46
12.1846-LowPressureControlSwitchOpen................................................. 46
12.18.1Description ................................................. 46
12.18.2Causes ................................................... 46
12.18.3Solutions .................................................. 46
12.1955-Highpressurecontrolswitchclose ................................................. 47
12.19.1Description ................................................. 47
12.19.2Causes ................................................... 47
12.19.3Solutions .................................................. 47
4

12.2057-Highpressurecontrolswitchopen.................................................. 47
12.20.1Description ................................................. 47
12.20.2Causes ................................................... 47
12.20.3Solutions .................................................. 47
12.2160-Blowerfaultrunning ............................................................ 47
12.21.1Description ................................................. 47
12.21.2Causes ................................................... 47
12.21.3Solutions .................................................. 47
12.2261-Blowerfaultrunning ............................................................ 48
12.22.1Description ................................................. 48
12.22.2Causes ................................................... 48
12.22.3Solutions .................................................. 48
12.2368-Noblowercommunication ....................................................... 48
12.23.1Description ................................................. 48
12.23.2Causes ................................................... 48
12.23.3Solutions .................................................. 48
12.2471-Noinducercommunication ....................................................... 48
12.24.1Description ................................................. 48
12.24.2Causes ................................................... 48
12.24.3Solutions .................................................. 48
12.2577-Nogasvalvefeedback .......................................................... 49
12.25.1Description ................................................. 49
12.25.2Causes ................................................... 49
12.25.3Solutions .................................................. 49
12.2693-Controlfault.................................................................. 49
12.26.1Description ................................................. 49
12.26.2Causes ................................................... 49
12.26.3Solutions .................................................. 49
13 INFORMATION 50
List of figures
Figure1: Interfacecardposition .......................................... 13
Figure 2: Interface board wires connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure3: Installationofventing ........................................... 16
Figure4: Upfloworientation ............................................. 17
Figure5: Upfloworientation2............................................ 18
Figure6: PanelIdentification ............................................ 18
Figure7: Dimensions ................................................ 19
Figure8: Topview .................................................. 19
Figure9: DrainTrapLocalisation .......................................... 20
Figure 10: Pressure switch connections for multipositions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 11: Typical gas pipe arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure12: Outletpressureport............................................ 25
Figure13: WiringDiagram .............................................. 28
5

Figure14: Clearanceandtermination ........................................ 33
Figure 15: Wiring Diagram Modulating t-stat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
List of tables
Table1: Minimumclearance ............................................ 12
Table 2: Maximum capacity of pipe Cu.ft./Hr for pipe length ft (m) . . . . . . . . . . . . . . . . . . . . . . . . 24
Table3: Inletgaspressure ............................................. 25
Table4: Outletgaspressure ............................................ 25
Table5: ElectricalData ............................................... 26
Table6: ThermostatChoiceVSSystem...................................... 27
Table 7: Maximum equivalent vent length (Ft) for altitude up to 4500 Ft . . . . . . . . . . . . . . . . . . . . . 32
Table8: Deductionforfittings............................................ 32
Table 9: Approved combustion air and vent pipe, fitting and cement materials (U.S.A Installation) . . . . . . 33
Table10: AirFlowAdjustement-S1......................................... 50
Table11: CoolingAirflowDemand ......................................... 51
Table12: CoolingAirflowAdjust ........................................... 51
Table 13: Heat Rise - Test Mode- Continuous Fan Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Table14: Dehumidification .............................................. 52
Table15: NormalOperationCodes ......................................... 52
6

1 SAFETY
1.1 SAFETY LABELING AND
WARNING SIGNS
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 seri-
ous 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) Do not stack items or boxing within the required
clearances to combustible materials specified in Ta-
ble ;
e) Never block or otherwise obstruct the filter and/or
return air openings;
f) 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 gas shutt off valve
iii. The air filter and how to change it (twice a
year);
g) Before calling for service, be sure to have the in-
formation of section 13 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.
7

WARNING
Failure to follow this warning could result in per-
sonal injury or death and unit component damage.
Corrosive or contaminated air may cause failure
of parts containing flue gas, which could leak into
the living space. Air for combustion must not be
contaminated by halogen compounds, which in-
clude fluoride, chloride, bromide and iodie. These
elements can corrode heat exchanger and shorten
furnace life. Air contaminants are found in aerosol
sprays, detergents, bleaches, cleaning solvents,
salts, air fresheners, and other household prod-
ucts. Do not install furnace in a corrosive or con-
taminated atmosphere. Make sure all combustion
and circulating air requirements are met, in addi-
tion to all local codes and ordinances.
WARNING
Failure to follow this warning could result in dan-
gerous operation, personal injury, death, or prop-
erty dammage.
Improper installation, adjustement, alteration, ser-
vice, maintenance, or use can cause carbon
monoxide poisoning, explosion, fire, electrical
shock, or other conditions which may cause per-
sonal injury or property damage. Consult a qual-
ified service agency, local gas supplier, or your
distributor or branch for information or assis-
tance. The qualified service agency must use only
factory authorized and listed kits or accessories
when modifying this product.
WARNING
FIRE, EXPLOSION AND CARBON MONOXIDE POI-
SONING HAZARD
Failure to follow this warning could result in per-
sonal injury, death, or property damage.
Never operate a furnace without a filter or filtra-
tion device installed. Never operate a furnace with
filter or filtration device access doors removed.
Untrained personnel can perform basic maintenance
functions such as cleaning and replacing air filters. All
other operations must be performed by trained service
personnel. When working on heating equipement, ob-
serve precautions in literature, on tags, and on labels at-
tached to or shipped with furnace and other safety pre-
cautions that may apply.
These instructions cover minimum requirements and
conform to existing national standards and safety codes.
In some instances, these instructions exceed certain lo-
cal codes and ordinances, especially those that may not
have kept up with changing residential construction prac-
tices. We require these instructions as a minimum for a
safe installation.
Follow all safety code. Wear safety glasses, protective
clothing and work gloves. Have a fire extinguisher avail-
able. Read these instructions thoroughly and follow all
warnings or cautions included in literature and attached
to the unit.
WARNING
INJURY HAZARD
Ignoring this warning could result in personal in-
jury.
Sheet metal parts may have sharp edges or burrs.
Use care and wear appropriate protective clothing,
safety glasses and gloves when handling parts,
and servicing furnaces
1. Use only with type of gas approved for this furnace.
Refer to the furnace rating plate.
2. Install this furnace only in a location and position as
specified in section 4.
3. Provide adequate combustion and ventilation air to
the furnace as specified in section 8
4. Combustion products must be discharged out-
doors. Connect this furnace to an approved vent
system only as specified in section 8 .
5. Never test for gas leaks with an open flame. Use a
commercially available soap solution made specifi-
cally for the detection of leaks to check all connec-
tions, as specified in section 5.4.1.
6. Always install furnace to operate within the fur-
nace’s intended temperature rise range with a duct
system which has an external static pressure within
the allowable range, as specified in section 5. See
furnace rating label.
7. When a furnace is installed so that supply ducts
carry air circulated by the furnace to areas out-
side the space containing the furnace, the return
air shall also be handled by duct(s) sealed to the
furnace casing and terminating outside the space
containing the furnace. See section 5.
8. The furnace is factory shipped for use with natural
gas. A CSA (A.G.A. and C.G.A.) listed accessory
gas conversion kit is required to convert furnace for
use with propane gas.
9. See Table 1 for required clearances to combustible
construction.
10. Maintain a 1” (25 mm) clearance from combustible
materials to supply air ductwork for a distance of
36” (914 mm) horizontally from the furnace. See
NFPA 90B or local code for further requirements.
8

11. These furnaces SHALL NOT be installed directly
on carpeting, tile, or any other combustible material
other than wood flooring.
12. Gas furnace manufactured on or after May 1, 2017
are not permitted to be used in Canada for heating
of buildings or structures under construction.
13. A gas fired furnace for installation in a residential
garage must be installed as specified in the WARN-
ING box below:
WARNING
FIRE, INJURY OR DEATH HAZARD
Failure to follow this warning could result in per-
sonal injury, death and/or property damage.
When the furnace is installed in a residential
garage, the burners and ignitions sources must be
located at least 18 in. (457 mm) above the floor.
The furnace must be located or protected to avoid
damage by vehicles. When the furnace is installed
in a public garage, airplane hangar, or other build-
ing having a hazardous atmosphere, the furnace
must be installed in accordance with the NFPA
54/ANSI Z223.1-2009 or CAN/CSA B149.2-2010.
Do not install the furnace on its back or hang fur-
nace with control compartment facing downward.
Safety control operation will be adversely affected.
Never connect return air duct to the back of the
furnace.
WARNING
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death. The operation of ex-
haust fans, kitchen ventilation fans, clothes dry-
ers, attic exhaust fans or fireplaces could create a
NEGATIVE PRESSURE CONDITION at the furnace.
Make-up air MUST be provided for the ventilation
devices, in addition to that required by the fur-
nace.
WARNING
CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for each
appliance connected to the venting system be-
ing placed into operation could result in carbon
monoxide poisoning or death. The following steps
shall be followed for each appliance connected to
the venting system being placed into operation,
while all other appliances connected to the vent-
ing system are not in operation:
1. Seal any unused openings in venting system;
2. Inspect the venting system for proper size and hor-
izontal pitch, as required in the National Fuel Gas
Code, NFPA 54/ANSI Z223.1-2009 and these in-
structions. In Canada, refer to CAN/CSA-B149.1-
2010. Determine that there is no blockage or re-
striction, leakage, corrosion and other deficiencies,
which could cause an unsafe condition;
3. As far as practical, close all building doors and win-
dows and all doors between the space in which the
appliance(s) connected to the venting system are
located and other spaces of the building;
4. Close fireplace dampers;
5. Turn on clothes dryers and any appliance not con-
nected to the venting system. Turn on any exhaust
fans, such as range hoods and bathroom exhausts,
so they are operating at maximum speed. Do not
operate a summer exhaust fan;
6. Follow the lighting instructions. Place the appliance
being inspected into operation. Adjust the thermo-
stat so appliance is operating continuously;
7. If improper venting is observed during any of the
above tests, the venting system must be corrected
in accordance with the National Fuel Gas Code,
NFPA 54/ANSI Z223.1-2009. In Canada, refer to
CAN/ CSA-B149.1-2010.
8. After it has been determined that the appliance
connected to the venting system properly vents
when tested as outlined above, return doors, win-
dows, exhaust fans, fireplace dampers and any
other gas-fired burning appliance to their previous
conditions of use.
WARNING
CARBON MONOXYDE POISONING HAZARD
For all venting configurations for this appliance
and other gas appliances placed into operation
for the structure, provisions for adequate combus-
tion, ventilation, and dilution air must be provided
in accordance with:
U.S.A Installations : Section 9.3NFPA 54/ANSI
Z223.1 1-2009 and applicable provisions of the lo-
cal building codes.
Canadian Installation: Part 8 of CAN/CSA-B149.1-
10 and all authorities having juridiction
1.3 DETECTION SYSTEMS
It is recommended that carbon monoxide detectors be
installed wherever oil or gas fired heaters are used. Car-
bon monoxide can cause bodily harm or death. For this
reason, agency approved carbon monoxide detectors
9

should be installed in your residence and properly main-
tained to warn of dangerously high carbon monoxide
levels.
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 de-
tectors 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.
Your unit is equipped with safety devices that can prevent
it from functioning when anomalies are detected such as
a blocked venting system.
1.4 DANGER OF FREEZING
CAUTION
FROZEN AND BURST WATER PIPE HAZARD
Failure to protect against the risk of freezing may
result in property damage. Special precautions
MUST be made if installing furnace in an area
which may drop below freezing. This can cause
improper operation or damage to equipment. If
furnace environment has the potential of freezing,
the drain trap and drain line must be protected.
CAUTION
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in burst
water pipes and/or property damage. If a con-
densate pump is installed, a clogged condensate
drain or a failed pump may cause the furnace to
shut down. Do not leave the home unattended
during freezing weather without turning off water
supply and draining water pipes or otherwise pro-
tecting against the risk of frozen pipes.
Ensure all condensate drain connections are se-
cured and liquid tight. Use the furnished tube
clamps and verify tightness
2 INTRODUCTION
This 4-way multi-positioning and modulating Category IV
condensing furnace is CSA design certified direct vent (2
pipes) or non-direct vent (1 pipe). The furnace is factory
shipped for use with natural gas. The furnace can be
converted in the field for use with propane gas when a
factory supplied conversion kit is used. Refer to the fur-
nace rating plate for conversion kit information.
This Category IV furnace is approved for installation in
Manufactured/Mobile housing. The furnace must be in-
stalled in accordance with the instruction provided in this
manual. A manufactured home installation must conform
with the Manufactured Home Construction and Safety
Standard, Title 24 CFR, Part 3280, or when this Stan-
dard is not applicable, The Standard for Manufactured
Home Installations (Manufactured Home Sites, Commu-
nities and Set-Ups), ANSI/NCS A225.1, and/or MH Se-
ries Mobile Homes, CAN/CSA-Z240. Follow all national
and local codes and standards in addition to these in-
structions. The installation must comply with regulations
of the serving gas supplier, local building, heating, plumb-
ing, and other codes.
This furnace is designed for minimum continuous return
air temperature of 60 °F (16 °C) or intermittent operation
down to 55 °F (13 °C) such as when used with a night
setback thermostat. Return air temperature must not ex-
ceed 80 °F (27 °C). Failure to follow these return air tem-
perature limits may affect reliability of heat exchangers,
motors, and controls.
The furnace should be sized to provide at least 100 %
of the design heating load requirement. Heating load es-
timates can be made using approved methods available
from Air Conditioning Contractors of America (Manual J);
American Society of Heating, Refrigerating, and Air Con-
ditioning Engineers; or other approved engineering meth-
ods. Excessive over sizing of the furnace could cause the
furnace and/or vent to fail prematurely.
2.1 CODES AND STANDARDS
Follow all national and local codes and standards in ad-
dition to these instructions. The installation must comply
with regulations of the serving gas supplier, local build-
ing, heating, plumbing, and other codes. In absence of
local codes, the installation must comply with the national
codes listed below and all authorities having jurisdiction.
In the United States and Canada, follow all codes and
standards for the following:
2.1.1 Safety
USA: National Fuel Gas Code (NFGC) NFPA 54-
2009/ANSI Z223.1-2009 and the Installation Stan-
dards, Warm Air Heating and Air Conditioning Systems
ANSI/NFPA 90B
CANADA: National Standard of Canada, Natural Gas
and Propane Installation Code (NSCNGPIC) CAN/CSA
B149.1-2010
2.1.2 General installation
USA: NFGC and the NFPA 90B. For copies, contact
the National Fire Protection Association Inc., Battery
10

march Park, Quincy, MA 02269; or for only the NFGC
contact the American Gas Association, 400 N. Capitol,
N.W.,Washington DC 20001
CANADA: NSCNGPIC. For a copy, contact Standard
Sales, CSA International, 178 Rexdale Boulevard, Eto-
bicoke (Toronto), Ontario, M9W 1R3, Canada
2.1.3 Combustion and and air ventilation
USA: Section 9.3 of the NFPA54/ANSI Z223.1-2009 Air
for Combustion and Ventilation
CANADA: Part 8 of the CAN/CSA B149.1-2010, Venting
Systems and Air Supply for Appliances
2.1.4 Duct systems
USA and CANADA: Air Conditioning Contractors Asso-
ciation (ACCA) (Manual D), Sheet Metal and Air Condi-
tioning Contractors National Association (SMACNA), or
American Society of Heating, Refrigeration, and Air Con-
ditioning Engineers (ASHRAE).
2.1.5 Acoustical lining and fibrous glass
duct
USA and CANADA: current edition of SMACNA, NFPA
90B as tested by UL Standard 181 for Class I Rigid Air
Ducts.
2.1.6 Gas piping and pipe pressure testing
USA: NFPA 54/ANSI Z223.1-2009 NFGC; Chapters 5, 6,
7, and 8 and national plumbing codes.
CANADA: CAN/CSA-B149.1-2010, Part 6
IN THE STATE OF MASSACHUSETTS:
• This product must be installed by a li-
censed plumber of gas fitter;
• When flexible connectors are used, the
maximum length shall not exceed 36 in.
(914 mm);
• When lever type gas shutoffs are used
they shall be ”T” handle type;
• The use of copper tubing for gas pip-
ing is not approved by the state of Mas-
sachusetts;
2.1.7 Electrical connections
USA: National Electrical Code (NEC) ANSI/NFPA 70-
2011
CANADA: Canadian Electrical Code
2.2 ELECTROSTATIC DISCHARGE
CAUTION
FURNACE RELIABILITY HAZARD
Failure to follow this caution may result in unit
component damage. Electrostatic discharge can
affect electronic components. Take precautions
during furnace installation and servicing to pro-
tect the furnace electronic control. These precau-
tions will help to avoid exposing the control to
electrostatic discharge by putting the furnace, the
controls, and the technician at the same electro-
static potential.
1. Disconnect all power to the furnace. Multiple dis-
connects may be required. DO NOT TOUCH
THE CONTROL OR ANY WIRE CONNECTED
TO THE CONTROL PRIOR TO DISCHARGING
YOUR BODY’S ELECTROSTATIC CHARGE TO
GROUND.
2. Firmly touch the clean, unpainted, metal surface of
the furnace chassis which is close to the control.
Tools held in a person’s hand during grounding will
be satisfactorily discharged.
3. After touching the chassis, you may proceed to ser-
vice the control or connecting wires as long as you
do nothing to recharge your body with static elec-
tricity (for example; DO NOT move or shuffle your
feet, do not touch ungrounded objects, etc.).
4. If you touch ungrounded objects (and recharge your
body with static electricity), firmly touch a clean, un-
painted metal surface of the furnace again before
touching control or wires.
5. Use this procedure for installed and uninstalled (un-
grounded) furnaces.
6. Before removing a new control from its con-
tainer, discharge your body’s electrostatic charge
to ground to protect the control from damage. If the
control is to be installed in a furnace, follow items
1 through 4 before bringing the control or yourself
in contact with the furnace. Put down all used and
new controls before touching ungrounded objects.
7. An ESD service kit (available from commercial
sources) may also be used to prevent ESD dam-
age.
2.3 LOCATION
This furnace must :
• Be installed so the electrical components are pro-
tected from water;
11

• Not be installed directly on any combustible mate-
rial other than wood flooring;
• Be located close to the chimney or vent and at-
tached to an air distribution system. Refer to sec-
tion 8
• Be provided ample space for servicing and clean-
ing. Always comply with minimum fire protection
clearances shown in table 1 or on the furnace rat-
ing label.
• Install de furnace with a correct slope if installed
in other position than upflow. If installed upflow,
make sure the furnace is leveled to ensure proper
drainage of condensate.
Place the unit so that proper venting can be achieved,
with a minimum number of elbows, in accordance with
the instructions in this manual. The furnace should be lo-
cated as close to the chimney (vertical venting) or to the
outside vent wall (horizontal venting) as possible.
When installing the furnace, provisions must be made to
ensure the supply of adequate combustion and ventila-
tion air in accordance with the “air for combustion and
ventilation” section of the National Fuel Gas Code, NFPA
5/ANSI Z223.1-2002, or latest edition, or applicable pro-
visions of the local building code.
2.3.1 Location relative to cooling
equipement
The cooling coil can either be installed in the supply air
duct or in the return air duct. If the coil is installed in the
supply air duct, it must be at a minimum of 6” over the
furnace primary heat exchanger.
Table 1 – Minimum clearance
Position Clearance in (mm)
Rear 0
Front 0
Required for service 24 (610)
All sides of supply plenum 1 (25)
Sides 0
Vent 0
Top of furnace 0
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3 ALIZÉ COOLING UNIT
To optimize your HVAC experience, Dettson offers a cool-
ing system called the Alizé. Your furnace can deliver up
to 400 CFM, making it suitable for a cooling unit up to
12000 BTU. Dettson also offers a 9000 BTU cooling sys-
tem.
3.1 THERMOSTAT USING ALIZÉ
SYSTEM
When using the Alizé cooling unit, the communicating
thermostat must be used (R02P029). The interface card
(K03069) will be able to gather information from the out-
door unit, the furnace and the thermostat, making this in-
tegrated system easy to install. The indoor blower speed
will be determined by various factors including outdoor
temperature, compressor speed and demand from the
thermostat. The balance point (temperature at which the
unit will switch from heat pump heating to auxiliary heat,
in this case gas) will be adjustable through the thermo-
stat. If this unit is destined to be used as a cooling system
only, the heat pump can also be disable from the commu-
nicating thermostat, by using emergency heat. For more
details refer to the manual provided with the thermostat.
3.2 POSITION OF THE INTERFACE
BOARD
Provision has been made on the main control board sup-
port in the furnace to locate the interface board (K03069).
Refer to figure 1.
3.3 WIRES CONNECTIONS WITH
THE INTERFACE BOARD
Figure 2, explains how to properly wire the interface
board to the ERV/HRV and main furnace control. For
the complete wire connection, please refer to the Alizé
manual. The interface board allows the ERV/HRV to be
interlocked with the furnace, giving a smooth and quiet
operation of the whole system.
Figure 1 – Interface card position
13

Figure 2 – Interface board wires connection
14

4 INSTALLATION
The furnace is factory built for upflow position. When in-
stalling the furnace in other orientation than the upflow
position, simply re-route the tubing accordingly with the
instructions provided in this section of the manual.
Before installing the furnace, remove three panel in
the following order to position the condensate tubing
(refer to figure 6):
1. Blue door
2. Top panel
3. Side panel
To ensure proper drainage of the condensate, tilt the
furnace from level position to a minimum slope of ½”
higher at back to front.
It is important to connect the vent rubber coupling to the
piece of PVC that is supplied with your furnace. Refer to
figure 3.
CAUTION
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in water
spillage and/or property damage.
For any position other than upflow, the multiposi-
tion pressure switch must be connected pneumat-
ically to the condensate box and electrically to the
control to allow the furnace to stop in the event of
drain blockage.
4.1 UPFLOW
The condensate trap must be outside the furnace casing.
The condensate drain hoses must be routed to the trap
through the furnace casing. Remove the metal knock out
on the side of the casing and route the hoses to the drain
trap. Refer to Figure 4
4.1.1 Condensate drain connection
1. Remove the oblong knock out from the side of the
casing.
2. Place the drain trap gasket on the drain trap.
3. Install the drain trap on the rear side with the three
outlet stubs towards the interior of the furnace.(see
figure 9)
4. Screw in place the drain trap with two head tapping
screws
5. Connect the outlet drain from the drain trap to an
additional condensate piping using a ½” tee for an
adequate drainage of the condensate. DO NOT
vent using the remaining 3 outlet stubs. Such
a drain shall be in compliance with local building
codes.
6. Prime the drain trap with water. This will ensure
proper furnace drainage at startup and will avoid
any recirculation of flue gas.
4.2 DOWNFLOW
To install the furnace in down flow orientation, the follow-
ing steps are required for proper operation.
When installing the furnace in Downflow orientation
you must tilt the furnace at least one inch forward to
ensure proper drainage of the condensate.
4.2.1 Condensate drain connection
1. Remove all PVC tubes from the ID blower, conden-
sate box and vent collector and block the stub open-
ings with furnished 5/8” & 1/2” black caps.
2. Remove the appropriate knock-out. Refer to Figure
8
3. Place the multiposition drain trap gasket on drain
trap.
4. Install the multiposition drain trap, the two outlet
stubs ends of the drain trap directed toward the in-
terior of the furnace. The two outward stubs ends
now penetrate inside the furnace.
5. Screw in place the drain trap with 2 tapping screws.
6. Install two 1/2” black plastic caps on the stubs of
the drain trap.
7. Cut the required length of furnished 1/2” clear PVC
tube and connect one end on the port on the lower
left side of the condensate box.
8. Connect the other end to one of the stub of the drain
trap.
9. Connect the outlet from the drain trap to the con-
densate drain piping with a tee. DO NOT vent using
the remaining 2 outlet stubs. Such a drain shall be
in compliance with local building codes.
10. The venting should be drained using a PVC 636
tee. Connect this tee to a P-trap and connect it
to your condensate drain. Commercially available
condensate trap exist for use with IPEX system
636.
15

11. Make sure the unused ends of the drain trap are
plugged with plastic caps.
4.3 HORIZONTAL
To install the furnace in horizontal orientation, the follow-
ing steps are required for proper operation.
When installing the furnace in horizontal orientation
you must tilt the furnace at least one inch forward to
ensure proper drainage of the condensate.
4.3.1 Condensate drain connection
1. Remove PVC tubes from the ID blower, condensate
box and vent collector and block the openings with
furnished ½” black caps.
2. Remove the appropriate knock-out. Refer to Figure
9.
3. Place the drain trap gasket on the drain trap.
4. Install the drain trap and screw in place with two
self-tapping screws to the furnace casing.
5. Reroute the ID blower drain tube from the bottom of
the ID blower casing to the drain trap.
6. Reroute the condensate box drain tube from the
bottom of the condensate box to the drain trap.
7. Connect the outlet from the drain trap to the con-
densate drain piping with a tee. DO NOT vent using
the remaining 3 outlet stubs. Such a drain shall be
in compliance with local building codes.
8. The venting should be drained using a PVC 636
tee. Connect this tee to a P-trap and connect it
to your condensate drain. Commercially available
condensate trap exist for use with IPEX system
636.
9. Make sure the unused ends of the drain trap are
plugged with plastic caps.
4.4 VENTING DRAINAGE
All furnaces with horizontal exhaust vent piping must
have a PVC 636 drain tee assembly and trap installed
in the exhaust pipe as close to the furnace as possible.
4.5 MULTIPOSITION PRESSURE
SWITCH CONNECTION
The 3/16 stub just beside the drain of the condensate
box must be drilled or cut open. The black squared PVC
tubing of the pressure switch (-0.2 in w.c.) must be con-
nected to this stub. This tubing is furnished with the fur-
nace.
The pressure switch must now be electrically connected
in series with the low fire pressure switch (top) with the
brown jumper furnished in the part bag. See Figure 10
and wiring diagrams.
Figure 3 – Installation of venting
16

Figure 4 – Upflow orientation
17

Figure 5 – Upflow orientation 2
Figure 6 – Panel Identification
18

Figure 7 – Dimensions
Figure 8 – Top view
19