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:
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 heating of buildings
or structures under construction
Printed in Canada on
100% recycled paper
2021-02-25 X40235 Rev.G

Table of content
1 SAFETY 4
1.1 SAFETY LABELING AND WARNING SIGNS . . . 4
1.2 IMPORTANT INFORMATION . . . . . . . . . . . . . . 4
1.2.1 Checking proper venting . . . . . . . . 6
1.3 DETECTION SYSTEMS . . . . . . . . . . . . . . . . . . 7
1.4 DANGER OF FREEZING . . . . . . . . . . . . . . . . . 7
2 INTRODUCTION 7
2.1 CODES AND STANDARDS . . . . . . . . . . . . . . . . 8
2.1.1 Safety . . . . . . . . . . . . . . . . . . 8
2.1.2 General installation . . . . . . . . . . . 8
2.1.3 Combustion and and air ventilation . . 8
2.1.4 Duct systems . . . . . . . . . . . . . . 8
2.1.5 Acoustical lining and fibrous glass duct 8
2.1.6 Gas piping and pipe pressure testing . 8
2.1.7 Electrical connections . . . . . . . . . 8
2.2 ELECTROSTATIC DISCHARGE . . . . . . . . . . . . 8
2.3 LOCATION............................ 9
2.3.1 Location relative to cooling equipement 9
3 ALIZÉ COOLING UNIT 9
3.1 THERMOSTAT USING ALIZÉ SYSTEM . . . . . . . 9
3.2 POSITION OF THE INTERFACE BOARD . . . . . 10
3.3 WIRES CONNECTIONS WITH THE
INTERFACEBOARD .................... 10
4 INSTALLATION 10
4.1 UPFLOW ............................. 11
4.1.1 Uplow Condensate drain connection . 11
4.2 DOWNFLOW .......................... 12
4.2.1 Downflow Condensate drain connection 12
4.3 HORIZONTAL.......................... 13
4.3.1 Horizontal Condensate drain
connection . . . . . . . . . . . . . . . 13
4.4 VENTING DRAINAGE . . . . . . . . . . . . . . . . . . . 14
4.5 MULTIPOSITION PRESSURE SWITCH
CONNECTION......................... 14
5 DUCT INSTALLATION 23
5.1 GENERAL REQUIREMENTS . . . . . . . . . . . . . . 23
5.2 SMART DUCT SYSTEM . . . . . . . . . . . . . . . . . . 23
5.3 RETURN AIR CONNECTIONS . . . . . . . . . . . . . 23
5.4 SUPPLY AIR DUCTS . . . . . . . . . . . . . . . . . . . . 23
5.4.1 Ductwork acoutiscal treatment . . . . 23
6 GAS SUPPLY AND PIPING 23
6.1 GENERAL ............................ 23
6.2 SETTING GAS PRESSURE . . . . . . . . . . . . . . . 24
6.3 PROPANE CONVERSION . . . . . . . . . . . . . . . . 24
6.4 GAS PIPE GROMMET . . . . . . . . . . . . . . . . . . . 25
7 ELECTRICAL WIRING 25
7.1 120VWIRING ......................... 26
7.2 24VWIRING .......................... 26
7.3 THERMOSTAT ......................... 26
7.4 ALTERNATE POWER SUPPLY . . . . . . . . . . . . . 26
8 VENTING AND COMBUSTION AIR PIPING 27
8.1 GENERAL ............................ 27
8.2 MATERIAL............................ 27
8.3 DIRECTVENT......................... 28
8.4 NONDIRECTVENT..................... 28
8.5 TERMINATION REQUIREMENTS OR
THE PROVINCE OF ALBERTA AND
SASKATCHEWAN ...................... 28
8.6 SPECIAL VENTING REQUIREMENTS FOR
INSTALLATION IN CANADA . . . . . . . . . . . . . . . 28
8.7 SIZE DE VENT AND COMBUSTION AIR
PIPES ............................... 29
8.8 CONNECTING TO FURNACE . . . . . . . . . . . . . . 29
8.8.1 Combustion air piping . . . . . . . . . 30
8.8.2 Exhaust vent piping . . . . . . . . . . 30
8.9 INSTALLING THE VENT TERMINATION . . . . . . 30
8.9.1 Concentric vent . . . . . . . . . . . . 30
8.9.2 Two pipe termination . . . . . . . . . 31
9 START UP, ADJUSTEMENT AND SAFETY CHECK 34
9.1 TO START FURNACE . . . . . . . . . . . . . . . . . . . . 34
9.1.1 Lighting instruction . . . . . . . . . . . 34
9.2 UNIT OPERATION HAZARD . . . . . . . . . . . . . . . 34
9.3 SETUPSWITCHES ..................... 34
9.4 NORMAL OPERATION . . . . . . . . . . . . . . . . . . . 35
9.5 FAULT CODE RESET . . . . . . . . . . . . . . . . . . . . 35
9.6 DIAGNOSTIQUE FEATURES . . . . . . . . . . . . . . 35
9.7 SEQUENCE OF OPERATION . . . . . . . . . . . . . . 35
9.8 SETTING INPUT RATE . . . . . . . . . . . . . . . . . . . 35
10 THERMOSTAT AND
CONTROLS 36
10.1 NON-COMMUNICATING MODULATING
THERMOSTAT ......................... 36
10.2 THERMOSTAT INPUT . . . . . . . . . . . . . . . . . . . 36
10.3FUSE ............................... 36
10.4 120 VAC TERMINALS . . . . . . . . . . . . . . . . . . . 36
10.4.1 Electronic air cleaner EAC (E103) . . 36
10.4.2 HUM terminal . . . . . . . . . . . . . . 36
10.5 Stepper gas valve control . . . . . . . . . . . . . . . . . 36
10.6 Connector 15-pins . . . . . . . . . . . . . . . . . . . . . . 37
10.7 ECM motor connection . . . . . . . . . . . . . . . . . . . 37
10.8 COMMUNICATIONS L.E.D. . . . . . . . . . . . . . . . . 37
10.9MEMORYCARD ....................... 37
10.10 REPLACING FURNACE CONTROL . . . . . . . . 37
10.11DIPSWITCH ......................... 37
10.11.1 Heat adjust . . . . . . . . . . . . . . 38
2

10.11.2 Cooling airflow select . . . . . . . . . 38
10.11.3 Heat rise adjust . . . . . . . . . . . . 38
10.11.4 Continuous fan speed . . . . . . . . 38
10.11.5 Furnace test mode . . . . . . . . . . 38
11 USER’S INFORMATION MANUAL 38
11.1 WHAT TO DO IF YOU SMELL GAS . . . . . . . . . . 39
11.2 OPERATING YOUR FURNACE . . . . . . . . . . . . . 40
11.3 LIGHTING INSTRUCTION . . . . . . . . . . . . . . . . 40
12 FAULT CODES 40
12.1D1.................................. 40
12.2D4.................................. 40
12.3D5.................................. 40
12.4D6.................................. 41
12.5h-nomodulation ....................... 41
12.6 10 - Furnace lock-out . . . . . . . . . . . . . . . . . . . . 41
12.7 11 - Failed ignition . . . . . . . . . . . . . . . . . . . . . . 41
12.8 12 - Low Flame sense . . . . . . . . . . . . . . . . . . . . 42
12.913-Flamelost ......................... 42
12.10 14 - Unexpected flame . . . . . . . . . . . . . . . . . . 42
12.1116-IgniterFail ........................ 43
12.12 22 - Main high limit open . . . . . . . . . . . . . . . . . 43
12.13 26 - Line Neutral Reverse . . . . . . . . . . . . . . . . 43
12.14 30 - Control Board Fuse Blown . . . . . . . . . . . . 43
12.15 33 - MRLC (Manual Reset Limit Control Open) . 43
12.16 44 - Low Pressure Control Switch Closed . . . . . 44
12.17 45 - Low Pressure Control Switch Open . . . . . . 44
12.18 46 - Low Pressure Control Switch Open 2 . . . . 44
12.19 55 - High pressure control switch close . . . . . . 45
12.20 57 - High pressure control switch open . . . . . . . 45
12.21 68 - No blower communication . . . . . . . . . . . . . 45
12.22 71 - No inducer communication . . . . . . . . . . . . 46
12.23 77 - No gas valve feedback . . . . . . . . . . . . . . . 46
12.24 93 - Control fault . . . . . . . . . . . . . . . . . . . . . . . 46
13 COMMISIONNING CHECK LIST AND FURNACE
INFO 50
14 PART LIST 52
15 NOTES 57
List of figures
Figure 1: Interface card position . . . . . . . . . 10
Figure 2: Interface board wires connection . . . 11
Figure 3: Installation of venting . . . . . . . . . 11
Figure 4: Panel Identification . . . . . . . . . . . 12
Figure 5: Dimensions . . . . . . . . . . . . . . . 13
Figure 6: Top view . . . . . . . . . . . . . . . . 14
Figure 7: Drain Trap Localisation . . . . . . . . 15
Figure 8: Pressure switch connections for
multipositions . . . . . . . . . . . . . . 15
Figure 9: Upflow orientation . . . . . . . . . . . 16
Figure 10: Upflow orientation 2 . . . . . . . . . . 17
Figure 11: Installation slope for downflow
application . . . . . . . . . . . . . . . 18
Figure 12: Downflow condensate box pressure
port ................... 18
Figure 13: Downflow installation . . . . . . . . . 19
Figure 14: Downflow installation detailed . . . . . 20
Figure 15: Installation slope for horizontal
application . . . . . . . . . . . . . . . 21
Figure 16: Horizontal installation . . . . . . . . . 21
Figure 17: Horizontal installation detailed . . . . 22
Figure 18: Typical gas pipe arrangement . . . . . 25
Figure 19: Outlet pressure port . . . . . . . . . . 26
Figure 20: Wiring Diagram . . . . . . . . . . . . 32
Figure 21: Clearance and termination . . . . . . 33
Figure 22: Wiring Diagram Modulating t-stat . . . 39
Figure 23: Exploded view . . . . . . . . . . . . . 53
Figure 24: Exploded view continued . . . . . . . 54
List of tables
Table 1: Minimum clearance . . . . . . . . . . . 9
Table 2: Maximum capacity of pipe Cu.ft./Hr for
pipe length ft (m) . . . . . . . . . . . . 25
Table 3: Inlet gas pressure . . . . . . . . . . . . 25
Table 4: Outlet gas pressure . . . . . . . . . . . 25
Table 5: Electrical Data . . . . . . . . . . . . . . 27
Table 6: Thermostat Choice VS System . . . . 27
Table 7: Maximum equivalent vent length (Ft) for
altitude up to 4500 Ft . . . . . . . . . . 31
Table 8: Deduction for fittings . . . . . . . . . . 31
Table 9: Approved combustion air and vent pipe,
fitting and cement materials (U.S.A
Installation) . . . . . . . . . . . . . . . 31
Table 10: Air Flow Adjustement - S1 . . . . . . . 47
Table 11: Cooling Airflow Demand . . . . . . . . 48
Table 12: Cooling Airflow Adjust . . . . . . . . . 48
Table 13: Heat Rise - Test Mode . . . . . . . . . 49
Table 14: Dehumidification . . . . . . . . . . . . 49
Table 15: Normal Operation Codes . . . . . . . 49
Table 16: CFM Table . . . . . . . . . . . . . . . 51
Table 17: Specification table . . . . . . . . . . . 51
Table 18: Part list Chinook Compact . . . . . . . 55
Table 19: Part list continued . . . . . . . . . . . 56
3

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
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 such codes, 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 or carton, near the
furnace;
d) Do not stack items or boxing within the required
clearances to combustible materials specified in
Table 1;
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
information 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.
4

WARNING
Failure to follow this warning could result in
personal 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
include 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 products. Do not install furnace
in a corrosive or contaminated atmosphere.
Make sure all combustion and circulating air
requirements are met, in addition to all local codes
and ordinances.
WARNING
Failure to follow this warning could result in
dangerous operation, personal injury, death, or
property dammage.
Improper installation, adjustement, alteration,
service, maintenance, or use can cause carbon
monoxide poisoning, explosion, fire, electrical
shock, or other conditions which may cause
personal injury or property damage. Consult
a qualified service agency, local gas supplier,
or your distributor or branch for information or
assistance. The qualified service agency must
use only factory authorized and listed kits or
accessories when modifying this product.
WARNING
FIRE, EXPLOSION AND CARBON MONOXIDE
POISONING HAZARD
Failure to follow this warning could result in
personal injury, death, or property damage.
Never operate a furnace without a filter or filtration
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,
observe precautions in literature, on tags, and on labels
attached to or shipped with furnace and other safety
precautions that may apply.
These instructions cover minimum requirements and
conform to existing national standards and safety codes.
In some instances, these instructions exceed certain
local codes and ordinances, especially those that may
not have kept up with changing residential construction
practices. 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
available. 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
injury.
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
outdoors. 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
specifically for the detection of leaks to check all
connections, as specified in section 6.
6. Always install furnace to operate within the
furnace’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 outside
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. This furnace may be
installed, with a two pipe sealed combustion
configuration, in a space utilized as part of the
return air supply. A filter must be installed at the
return opening of 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.
5

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.
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
WARNING box below:
WARNING
FIRE, INJURY OR DEATH HAZARD
Failure to follow this warning could result in
personal 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
building 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. 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
exhaust fans, kitchen ventilation fans, clothes
dryers, 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 furnace.
WARNING
CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for
each appliance connected to the venting system
being 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
venting system are not in operation:
1.2.1 Checking proper venting
1. Seal any unused openings in venting system;
2. Inspect the venting system for proper size and
horizontal pitch, as required in the National
Fuel Gas Code, NFPA 54/ANSI Z223.1-2009
and these instructions. In Canada, refer to
CAN/CSA-B149.1-2010. Determine that there is
no blockage or restriction, leakage, corrosion and
other deficiencies, which could cause an unsafe
condition;
3. As far as practical, close all building doors and
windows 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
connected 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 in section 9.1.1.
Place the appliance being inspected into operation.
Adjust the thermostat 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,
windows, exhaust fans, fireplace dampers and any
other gas-fired burning appliance to their previous
conditions of use.
6

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
combustion, 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
local 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.
Carbon monoxide can cause bodily harm or death.
For this reason, agency approved carbon monoxide
detectors should be installed in your residence and
properly maintained to warn of dangerously high carbon
monoxide levels.
There are several sources of possible smoke and flames
in a residence. Smoke and flames can cause bodily
harm or death. For this reason, agency approved smoke
detectors should be installed in your residence and
properly maintained, to warn early on, of a potentially
dangerous fire. Also, the house should be equipped with
approved and properly maintained fire extinguishers.
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 condensate 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 protecting against the risk of frozen
pipes.
Ensure all condensate drain connections are
secured and liquid tight. Use the furnished tube
clamps and verify tightness
2 INTRODUCTION
This 3-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
furnace rating plate for conversion kit information.
This Category IV furnace is approved for installation
in Manufactured/Mobile housing. The furnace must
be installed 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 Standard is not applicable, The Standard for
Manufactured Home Installations (Manufactured Home
Sites, Communities and Set-Ups), ANSI/NCS A225.1,
and/or MH Series Mobile Homes, CAN/CSA-Z240.
Follow all national and local codes and standards in
addition to these instructions. The installation must
comply with regulations of the serving gas supplier, local
building, heating, plumbing, 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 exceed 80 °F (27 °C). Failure to follow these
return air temperature 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 estimates can be made using approved methods
available from Air Conditioning Contractors of America
(Manual J); American Society of Heating, Refrigerating,
and Air Conditioning Engineers; or other approved
engineering methods. Excessive over sizing of the
furnace could cause the furnace and/or vent to fail
prematurely.
7

2.1 CODES AND STANDARDS
Follow all national and local codes and standards in
addition to these instructions. The installation must
comply with regulations of the serving gas supplier, local
building, 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 Standards,
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
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,
Etobicoke (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
Association (ACCA) (Manual D), Sheet Metal and
Air Conditioning Contractors National Association
(SMACNA), or American Society of Heating,
Refrigeration, and Air Conditioning 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
licensed 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
piping is not approved by the state of
Massachusetts;
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
protect the furnace electronic control. These
precautions will help to avoid exposing the control
to electrostatic discharge by putting the furnace,
the controls, and the technician at the same
electrostatic potential.
1. Disconnect all power to the furnace. Multiple
disconnects 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
service the control or connecting wires as long as
you do nothing to recharge your body with static
electricity (for example; DO NOT move or shuffle
your feet, do not touch ungrounded objects, etc.).
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4. If you touch ungrounded objects (and recharge your
body with static electricity), firmly touch a clean,
unpainted metal surface of the furnace again before
touching control or wires.
5. Use this procedure for installed and uninstalled
(ungrounded) furnaces.
6. Before removing a new control from its container,
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
damage.
2.3 LOCATION
This furnace must :
• Be installed so the electrical components are
protected from water;
• Not be installed directly on any combustible
material other than wood flooring;
• Be located close to the chimney or vent and
attached to an air distribution system. Refer to
section 8.
• Be provided ample space for servicing and
cleaning. Always comply with minimum fire
protection clearances shown in table 1 or on the
furnace rating label.
• Install the 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.
• The furnace must be installed in a conditioned
space.
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
located 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
ventilation 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 provisions 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 24 (610)
All sides of supply plenum 1 (25)
Sides 0
Vent 0
Top of furnace Chinook compact 0
3 ALIZÉ COOLING UNIT
To optimize your HVAC experience, Dettson offers a
cooling system : Alize. 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 system.
3.1 THERMOSTAT USING ALIZÉ
SYSTEM
When using the Alizé cooling unit, the communicating
thermostat must be used (R02P032). The interface card
(K03081) will be able to gather information from the
outdoor unit, the furnace and the thermostat, making
this integrated 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 thermostat. If this unit is destined to be used as a
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cooling system only, the heat pump can also be disable
from the communicating 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
support in the furnace to locate the interface board
(K03081). 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
4 INSTALLATION
The furnace is factory built for upflow position. When
installing 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 4):
1. Blue service door
2. "Top" panel
3. "Side" panel
It is important to connect the vent rubber
coupling to the piece of PVC that is supplied
with your furnace. PVC must be glued on
either side of the venting flange. 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
multiposition pressure switch must be connected
pneumatically to the condensate box and
electrically to the control to allow the furnace
to stop in the event of drain blockage.
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Figure 2 – Interface board wires connection
Figure 3 – Installation of venting
4.1 UPFLOW
The condensate trap must be outside the furnace casing.
Use the 3 port drain trap. 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 7.
4.1.1 Uplow Condensate drain connection
1. Remove the knock out from the side of the casing.
See figure 7 for drain trap location in the upflow
position.
2. Place the drain trap gasket on the drain trap.
3. Install the drain trap (see figure 10)
4. Screw in place the drain trap with two head tapping
screws
5. Connect the outlet drain from the drain trap to an
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Figure 4 – Panel Identification
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
When installing the furnace in Downflow orientation
you must tilt the furnace at least one inch forward to
ensure proper drainage of the condensate. Refer to
figure 11
Make sure to allow enough space for inclination, venting
and drain trap.
4.2.1 Downflow Condensate drain
connection
BEFORE INSTALLING THE FURNACE LOOK AT
FIGURES 11, 12, 14 AND 13.
1. Remove all PVC tubes from the ID blower,
condensate box and vent collector and block the
stub openings with furnished 1/2” black caps.
2. Use the furnished exra tubing and cut those 2
lengths : (1) 4.5" and (2) 9.25".
3. Remove the appropriate knock-out for drain trap.
Refer to Figure 7 for the location of the drain trap
in downflow configuration.
4. Cut open the pressure port, located on the
condensate box. See figure 12 for its location. Il will
be connected to the multiposition pressure switch in
section 4.5.
5. Use the MULTIPOSTION DRAIN TRAP, which
has only two ports.
6. Place the drain trap gasket on drain trap.
7. Install the drain trap and screw in place with two
self-tapping screw to the furnace casing.
8. Reroute the condensate box drain tube to the drain
trap.
Starting from condensate box use length (1)
4.5", a 90° elbow and length (2) 9.25"
9. Prime the drain trap with water. This will ensure
proper furnace drainage at startup and will avoid
any recirculation of flue gas.
10. Install one 1/2” black plastic caps on the remaining
stub of the drain trap.
12

Figure 5 – Dimensions
11. Connect the outlet of drain trap to the condensate
drain piping with a tee. Such a drain shall be in
compliance with local building codes.
12. The venting must 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.
4.3 HORIZONTAL
Horizontal application is perfect for ceiling installation.
Allow enough space for inclination of the furnace and
drain trap. Figure 15 will help you figure orientiation,
inclination and space needed.
When installing the furnace in horizontal orientation
you must tilt the furnace at least 0.5 in torward the
heat exchanger to ensure proper drainage of the
condensate. See figure 15
4.3.1 Horizontal Condensate drain
connection
BEFORE INSTALLATING THE FURNACE
Look at figures 17 and 16.
1. Remove PVC tubes from the ID blower, condensate
box and vent collector and block the openings with
furnished ½” black caps.
2. Use the furnished extra tubing and cut those 4
lengths : (1) 3.75" , (2) 5.5" , (3) 5.5" and (4) 3.25".
3. Remove the appropriate knock-out for drain trap. It
is on the top of the furnace. Refer to Figure 6, and
look for horizontal drain trap location.
4. Cut open the pressure port, located on the
condensate box behind the inducer. It will be
connected to the multiposition pressure switch in
section 4.5. For pressure port location see figure
17.
5. Use the MULTIPOSITION DRAIN TRAP, which
has only two ports.
6. Place the drain trap gasket on the drain trap.
7. Install the drain trap and screw in place with two
self-tapping screws to the furnace casing.
8. Reroute the ID blower drain tube from the ID blower
casing to the drain trap.
Starting from the ID blower use length (1)
3.75", 90° elbow and length (2) 5.5"
9. Reroute the condensate box drain tube from the
bottom of the condensate box to the drain trap.
Starting from the condensate box use length
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Figure 6 – Top view
(3) 5.5", 90° elbow and length (4) 3.25".
10. Prime the drain trap with water. This will ensure
proper furnace drainage at startup and will avoid
any recirculation of flue gas.
11. Connect the outlet of drain trap to the condensate
drain piping with a tee. Such a drain shall be in
compliance with local building codes.
12. The venting must 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. See figure 16.
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 multiposition pressure switch (-0.2 in w.c.)
must be connected to this stub. This tubing is furnished
with the furnace.
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 8
and wiring diagrams.
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Figure 7 – Drain Trap Localisation
Figure 8 – Pressure switch connections for multipositions
15

Figure 9 – Upflow orientation
16

Figure 10 – Upflow orientation 2
17

Figure 11 – Installation slope for downflow application
Figure 12 – Downflow condensate box pressure port
18

Figure 13 – Downflow installation
19

Figure 14 – Downflow installation detailed
20