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Gas furnaces manufactured on or after May 1, 2017 are not permitted to be used in Canada for heating of buildings or structures under construction. These instructions must be read and understood completely before attempting installation. HOMEOWNER: PLEASE Keep this manual near the furnace for future reference. Manufactured by: Industries Dettson Inc. Sherbrooke (Québec) Canada www.dettson.ca 2016-09-19 X40225 Rev.O...
TABLE OF CONTENTS 1- Safety regulation ..........7 5.3- Return air connections ....... 22 1.1- Safety labeling and warning signs ....7 5.3.1- Bottom return air inlet ........22 1.2- Important information ........7 5.3.2- Side return air inlet ........22 5.4- Filter arrangement ........
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LIST OF TABLES Table 1 Minimum clearance to combustible material for all Table 33 33 - MRLC (Manually Reset Limit Control) units* ................10 OPEN ................55 Table 2 Furnished parts list ..........10 Table 34 44 - LPC (low pressure control (switch)) Closed ..................
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INDEX OF ANNEXES Annex 1 CFM TABLES FOR COOLING AND HEATING ......................68 Annex 2 SPECIFICATION SHEET ............................74...
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Required notice for Massachusetts installations Important The Commonwealth of Massachusetts requires compliance with regulation 248 CMR as follows: 5.08: Modifications to NFPA-54, Chapter 10. Revise 10.8.3 by adding the following additional requirements: For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:...
WARNING 1- SAFETY REGULATION CARBON MONOXIDE POISONING/COMPONENT DAMAGE 1.1- Safety labeling and warning signs HAZARD The words DANGER and WARNING are used to identify the levels of Failure to follow this warning could result in personal injury or death and seriousness of certain hazards.
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CAUTION CAUTION INJURY HAZARD FROZEN AND BURST WATER PIPE HAZARD Ignoring this warning could result in personal injury. Failure to protect against the risk of freezing may result in property damage. Special precautions MUST be made if installing furnace in an Sheet metal parts may have sharp edges or burrs.
with the instruction provided in this manual. A manufactured home WARNING installation must conform with the Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280, or when this Standard is not applicable, Standard Manufactured Home Installations CARBON MONOXIDE POISONING HAZARD (Manufactured Home Sites, Communities and Set-Ups), ANSI/NCS A225.1, and/or MH Series Mobile Homes, CAN/CSA-Z240.
2.1.3- Combustion and air ventilation If you touch ungrounded objects (and recharge your body with static electricity), firmly touch a clean, unpainted metal surface of USA: Section 9.3 of the NFPA54/ANSI Z223.1-2009 Air for the furnace again before touching control or wires. Combustion and Ventilation Use this procedure for installed and uninstalled (ungrounded) CANADA: Part 8 of the CAN/CSA B149.1-2010, Venting Systems and Air...
When installing the furnace, provisions must be made to ensure the supply Commercial buildings of adequate combustion and ventilation air in accordance with the “air for Buildings with indoor pools combustion and ventilation” section of the National Fuel Gas Code, NFPA ...
If this unit is destined to be used as a cooling system only, the heat To optimize your HVAC experience, Dettson offers a cooling system pump can also be disable from the communicating thermostat, by using called the Alizé.
Figure 7 Left side condensate drain connection 4- INSTALLATION The furnace is factory built for upflow position. In this position, the drain trap can be installed on right or left side depending on air return duct. When installing the furnace in the upflow position, make sure it is leveled.
Place the drain trap gasket on drain trap, in a way that On the remaining 3 outlet stub, connect black vinyl cap (1x5/8’’ and 2x1/2”). Those cap are furnished in the part the holes are aligned. bag. Install the drain trap on the right side, the three outlet stub of the drain trap toward the interior of the furnace.
Figure 11 Down flow orientation Connect a piece of 5/8’’ PVC tube to the bottom left of the condensate box and route with an elbow to the drain 4.2.2- Downflow venting drainage trap. See Figure 14 Horizontal Right Drain connection of All furnaces with horizontal exhaust vent piping must have a PVC the condensation box.
Plug the 5/8’’ and 1/2” tubes to the drain trap. The drain Drill open the new bottom stub of the ID blower (if not already open). Be sure to remove all debris. trap must be vertical. Reroute the ID blower drain tube from the bottom of the 10.
5.2- Smart Duct System In the state of Massachusetts: Dettson Industries also offers Smart Duct System. Please refer to the Gas supply connections MUST be performed by a licensed Smart Duct Manual (X40240) for proper installation of this system.
Table 3 Maximum capacity of pipe in Ft³ of gas/hr and accessible manual equipment shutoff valve before and during supply pipe pressure test. After all connections have been made, purge lines and Nominal Length of pipe - FT (M) check for leakage prior to operating furnace. Internal Iron pipe dia.
U.S.A. Installations: Make all electrical connections in accordance with the current edition of the Canadian Electrical Code CSA C22.1 and any local codes or Make all electrical connections in accordance with the current edition of ordinances that might apply. the National Electrical Code (NEC) ANSI/NFPA 70 and any local codes or ordinances that might apply.
U.S.A. Installations: Section 5.3 of the NFPA 54/ANSI Z223.1-2009, Air 8- VENTING AND COMBUSTION AIR PIPING for Combustion and Ventilation and applicable provisions of the local building codes. 8.1- Introduction Canada: Part 8 of the CAN/CSA-B149.1-2010, Venting Systems and Air Supply for Appliances.
All exhaust piping must be installed in compliance with Part 7, “Venting of density, foil faced fiberglass or equivalent Rubatex/Armaflex Equipment,” of the latest edition of the National Fuel Gas Code NPFA 54, insulation. (In Canada per the vent manufacturer’s instructions) 90A and 90B ANSI Z223.1-, local codes or ordinances and these For runs where condensate could collect and freeze, wrap the instructions:...
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vertical pipe. Any change in diameter to the pipe must be made as close Subtract the equivalent lengths of the fittings and terminations to the furnace as reasonably possible. from the Maximum Equivalent Vent Length. When installing vent systems of short pipe lengths use the smallest If the Maximum Vent Length calculated is shorter than the allowable pipe diameter.
NOTE: Pipe length specified for maximum pipe lengths located in 8.8- Installing the vent termination unconditioned spaces cannot exceed total allowable pipe length A roof termination of any type will require a 4” (102 mm) flashing for a 2” as calculated from Table 7 and Table 8. (51 mm) concentric vent or a 5”...
9- START UP, ADJUSTMENT AND SAFETY WARNING CHECK Replace the burner compartment control access door. Furnace must have a 120 V power supply properly connected and grounded (NOTE: Proper polarity must be maintained for Failure to replace the burner door can cause products of combustion 120 V wiring.
Table 15 Dipswitch S3 and S5 – Setting cooling airflow demand Motor Hp S5-2 S5-1 S3-1 S3-2 Y1 + Y2 1400 1800 1200 1600 1050 1400 1200 1HP AND ¾ HP 1080 1460 1280 1120 1200 1000 ½ HP Please refer to tech CFM table in the annex at the end of the manual...
9.7.3- Setting input rate THERMOSTAT Checking furnace input is important to prevent over firing beyond its design-rated input. NEVER SET INPUT ABOVE THAT SHOWN ON THE WARNING RATING PLATE. Prior to checking the furnace input, make certain that all other gas appliances are shut off, with the exception of pilot burners. Time the meter with only the furnace in operation.
See Figure 25 15-Pin connector; J1 with pin designations. 10.3- Fuse (F1) Pin 1. HLI HIGH LIMIT INPUT A three-amp automotive-style (ATC blade type) fuse is supplied on the furnace control board. This fuse should provide protection from short- Pin 2. PS1 LOW PRESSURE SWITCH OUTPUT circuits on the control board and associated 24 VAC wiring.
10.10- Communications L.E.D.’s (Light emitting WARNING diodes) “RX” (Green) L.E.D. – This L.E.D. indicates that communications is Do not replace the furnace control or memory card of the furnace with being sensed to or from (i.e.: something on the network is trying to a furnace control or memory card of another furnace or another communicate) other components (e.g.
on the network should only be considered as a backup to the memory 10.13- Dipswitch card. NOTE: The integrated furnace control does not recognize switch setting If valid furnace shared data is available from the network and changes while energized. no memory card is present, a “d4”...
Switch the 120 volt power to the furnace ON. Set the thermostat mode to HEAT; adjust the set point at least The furnace area must be kept clear and free of combustible 4°F above room temperature to demand a call for heating. materials, gasoline, and other flammable vapors and liquids.
Move the gas control switch to “OFF” (see Figure 26 Control switch can result if you are not qualified to do this work. Please call your modulating valve). dealer when service is needed. Your gas furnace is designed to give many years of efficient, satisfactory service.
It is important that the outside area where the vent terminates is kept clear Figure 27 Typical flame appearance of any obstructions which might block or impede the venting of the furnace. Should venting become blocked at any time, your furnace is equipped with a special safety control to prevent operation of the furnace until the condition has been corrected.
11.16.1- Clearing diagnostic fault codes from the buffer Two levels of fault codes exist: (1) Non- critical and (2) Critical. In general a non-critical fault permits all (or nearly all) operations to proceed and a To clear the fault codes in the fault buffer, push and hold down the “Fault critical fault prevents all (or nearly all) operations from proceeding.
Table 18 D1 - No shared data Code at dual 7 segment display of I.F.C.: Status : This is a critical fault. The furnace will not operate in any mode. This code displays anytime there is no shared data at the furnace. The shared data is electronically stored data that is used to define (among other things) blower operation.
Table 19 D4 - Memory card Code at dual 7 segment display of I.F.C.: Status : This is non-critical fault. The furnace should operate in any mode. The memory card inserted into the slot at position E117 of the furnace control is corrupt OR there is no Description : memory card installed at all.
Table 21 D6 - Blower horsepower conflict Code at dual 7 segment display of I.F.C.: Status : This is a non-critical fault. The furnace should operate in any mode. The horsepower reported by the motor does not match the horsepower stored in memory in the shared data Description : of the memory card or furnace control.
Table 23 D8 - old shared data Code at dual 7 segment display of I.F.C.: Status : This is a non-critical fault. The furnace should operate in any mode. This message is intended for future applications where the shared data of a newer furnace has been replaced with shared data from an older furnace.
Table 24 h – NO V Code at dual 7 segment display of I.F.C.: This message is displayed only when using a 24v non modulating thermostat. The status is low-level and is not critical to furnace operation. However, the furnace’s capacity to function in the best possible manner is slightly Status : compromised.
Table 26 11 - Failed ignition Code at dual 7 segment display of I.F.C.: Up to three failed ignitions will not constitute a critical condition. Critical condition (with no heating operation) is only noted when the furnace has failed to ignite four or more ties in a row. After four failed ignition Status : attempts, the fault code will change from “11”...
Table 27 12 - Low flame sense Code at dual 7 segment display of I.F.C.: The status of this fault is non-critical and furnace operation will continue as normal in heating (and all other) mode(s). Status : If flame sense is low, the furnace control (or I.F.C.) may soon no longer be able to properly sense the flame and status of the problem may be elevated to the level of fault code “13”...
Table 28 13 - Flame lost Code at dual 7 segment display of I.F.C.: Flame lost is not a critical fault. Subsequent ignition attempts will follow and normal operation should resume. However, a lost flame can often be followed by failed ignition attempts then a one-hour lockout. Once the Status : status has reached one-hour lockout, the fault condition is critical (although attempts at ignition will be made again after the 1 hour lockout) and furnace operation will proceed as described under "10"...
Table 29 16 - Igniter fail Code at dual 7 segment display of I.F.C.: Status : This is a critical fault. The furnace will not operate in any mode. This code is displayed anytime there is an igniter failure. It may also be displayed if the furnace control relay Description : for the igniter is not closing or cannot be sensed indicating a faulty control board.
Table 31 22 - Main limit open Code at dual 7 segment display of I.F.C.: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) Status : should function. The main limit has opened or is sensed to be opened. This normally means that the temperature inside the Description : heat exchanger area has gone above a certain predetermined critical value and heating operation is not permitted until the limit cools to within normal parameters.
Table 33 33 - MRLC (Manually Reset Limit Control) OPEN Code at dual 7 segment display of I.F.C.: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) Status : should function.
Table 34 44 - LPC (low pressure control (switch)) Closed Code at dual 7 segment display of I.F.C.: This is a critical fault. The furnace will not operate in gas heat mode but all other modes (e.g. cooling) should Status : function if present simultaneously with a heating call (e.g.
Table 35 46 - LPC (low pressure control (switch)) Open Code at dual 7 segment display of I.F.C.: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) Status : should function if present simultaneously with a heating call (e.g.
Table 36 55 - HPC (High Pressure Control (switch)) CLOSED Code at dual 7 segment display of I.F.C.: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) Status : should function if present simultaneously with a heating call (e.g.
Table 37 57 - HPC (High Pressure Control (switch)) OPEN Code at dual 7 segment display of I.F.C.: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) should function if present simultaneously with a heating call (e.g. defrost call in dual-fuel mode). if this is Status : experienced during high heat operation (above 50% rate) and the low pressure switch remains engaged, the furnace will switch to low fire heat and continue to run (if possible) to try to satisfy the thermostat.
Table 38 60 - Blower fault - running Code at dual 7 segment display of I.F.C.: This is a non-critical fault experienced by the furnace. All operations (including thermostat calls) should Status : continue as normal with no perceivable difference in operation. Description : A blower fault which is non-critical allows the blower to continue to run but at less than optimal conditions.
Table 40 66 - Blower overspeed Code at dual 7 segment display of I.F.C.: This is a non-critical fault experienced by the furnace. All operations (including thermostat calls) should Status : continue as normal with no perceivable difference in operation. The blower motor is operating at the highest rpm or torque that specifications allow but the application requires more torque or speed in order to get the desired airflow under the current static pressure conditions.
Table 42 71 - No inducer communications Code at dual 7 segment display of I.F.C.: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) Status : should function. When attempting to communicate with the inducer controller module (electronic control board in blower Description : compartment), communications cannot be established or response from the inducer controller module is not as expected.
Table 44 93 - Control fault Code at dual 7 segment display of I.F.C.: Status : This is a critical fault. The furnace will not operate in any mode of operation. This is a severe fault that should rarely (if ever) be discovered in the field. It is an indicator of an internal Description : microprocessor fault on the furnace control (or I.F.C.) or voltage applied to the main gas valve solenoid when there should be none.
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Maximum equivalent straight vent length Vent pipe diameter (in.) Altitude (ft) Unit size (Btu/hr) 2" 3" 15,000 30,000 45,000 60,000 0 to 4500 ft 75,000 105,000 120,000 Deduction for fittings Type of elbow Equivalent Length (ft.) 45° Standard 45° Long sweap 2½...
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INFORMATION PAGE MODEL NUMBER SERIAL NUMBER NATURAL GAS OR PROPRANE? IF PROPANE, CONVERSION KIT NUMBER GAS SUPPLY PRESSURE MANIFOLD PRESSURE SUPPLY VOLTAGE DUCT STATIC PRESSURE (SUPPLY AND RETURN) AIR TEMPERATURE RISE DOES THE DRAIN TRAP IS FILLED WITH WATER? IS THE DRAIN TRAP VENTED WITH A TEE? DOES THE CONDENSATE LINES ARE PROPERLY SLOPED? IF THE UNIT IS UPFLOW, IS IT LEVELED? IF THE UNIT IS IN POSITION OTHER THAN UPFLOW, IS IT TILTED?
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