Dettson AMT100/200 Rev.D Owner Manual

DNS-0537 Rev B

AMT

AMT-S

Models:

AMT100B34-SM1

AMT100B34-IM2

(AMiT)

AMT200B34-SM3

AMT200B34-IM2

(AMiT)

C US

AMiT

AMT-I

INSTALLER / SERVICE TECHNICIAN:

USE THE INFORMATION IN THIS MANUAL FOR THE INSTALLATION AND

SERVICING OF THE FURNACE. KEEP THE DOCUMENT NEAR THE UNIT FOR

FUTURE REFERENCE.

HOMEOWNER:

PLEASE KEEP THIS MANUAL NEAR THE FURNACE FOR FUTURE

REFERENCE.

Printed in Canada

Printed on 100% recycled paper

2016-03-31

Caution : Do not tamper with the unit or its controls.

Call a qualified service technician.

Manufactured by:

Dettson Industries inc.

3400 Industrial Boulevard

Sherbrooke, Quebec Canada - J1L 1V8 www.dettson.ca

X40004 Rev. AD

TABLE OF CONTENTS

PART 1 INSTALLATION ................................................. 3

1.1) DANGER, WARNING AND CAUTION ............................ 3

1.2) SAFETY INSTALLATION REQUIREMENTS .................. 3

1.3) GENERAL ....................................................................... 4

1.4) POSITIONING THE FURNACE ....................................... 4

1.4.1) AIR FOR COMBUSTION AND VENTILATION ....... 4

1.4.2) DUCT RECOMMENDATIONS ................................ 5

1.4.3) VENTING INSTRUCTIONS (CHIMNEY

INSTALLATION) ............................................................. 5

1.4.4) VENTING INSTRUCTIONS .................................... 5

1.4.5) OIL BURNER ......................................................... 5

1.4.6) ELECTRICAL ......................................................... 6

1.4.7) AIR FILTER ............................................................ 6

1.5) BLOCKED VENT SHUT-OFF (BVSO) FOR CHIMNEY

VENTING ........................................................................ 6

PART 2 OPERATION ...................................................... 7

2.1) OPERATIONAL CHECKLIST ......................................... 7

2.2) COMBUSTION CHECK................................................... 7

2.3) FAN ADJUSTMENT CHECK .......................................... 7

2.4) LIMIT CONTROL CHECK ............................................... 8

2.4.1) ............... FAN-LIMIT ADJUSTMENT AND BLOWER

REGULATOR .................................................................. 8

PART 3 MAINTENANCE ................................................. 9

3.1) HEAT EXCHANGER CLEANING .................................... 9

3.2) BLOWER REMOVAL ...................................................... 9

3.3) BLOCKED VENT SHUT OFF (BVSO) CLEANING ......... 9

PART 4 INFORMATION ................................................ 10

FIGURES

Figure 1: Fan-limit adjustment and blower regulator .................. 8

Figure 2: Model AMT1-1M2 ......................................................... 13

Figure 3: Model AMT1-SM1 ......................................................... 13

Figure 4: Model AMT2-IM2 .......................................................... 14

Figure 5: Model AMT2-SM3 ......................................................... 14

Figure 6: Wiring diagram AMT1-IM2 and AMT2-IM2 .................. 15

Figure 7: Wiring diagram AMT1-SM1 and AMT2-SM3, heating only

...................................................................................... 16

Figure 8: Wiring diagram MT1-SM1 and AMT2-SM3, heating and optional cooling........................................................... 17

Figure 9: Parts list - AMT1-IM2 ................................................... 17

Figure 10: Parts list - AMT1-SM1 ................................................ 20

Figure 11: Parts list - AMT2-SM3 ................................................ 22

Figure 12: Parts list - AMT2-IM2 ................................................. 24

TABLES

Table 1: Minimum ventilation openings dimensions required in a closet or enclosure ....................................................... 4

Table 2: Air filter dimensions for return air duct ......................... 6

Table 3: Technical specifications for models AMT1/AMT2 (with

3/4 motor) ..................................................................... 11

Table 4: Technical specifications for model AMT2 (with 1/3 HP motor)........................................................................... 11

Table 5: Air delivery - CFM with air filter ................................... 12

Table 6: Minimum clearances - combustible materials ............ 12

Table 7: Parts list - AMT1-1M2 .................................................... 19

Table 8: parts list - AMT1-SM1.................................................... 21

Table 9: Parts list - AMT2-SM3 ................................................... 23

Table 10: Parts list - AMT2-IM2 ................................................... 25

PART 1 INSTALLATION

FOR YOUR SAFETY

DO NOT STORE OR USE GASOLINE OR OTHER

FLAMMABLE VAPORS AND LIQUIDS IN THE

VICINITY OF THIS OR ANY OTHER APPLIANCE.

DO NOT ATTEMPT TO START THE BURNER WHEN

EXCESS OIL HAS ACCUMULATED, WHEN THE

FURNACE IS FULL OF VAPOUR OR WHEN THE

COMBUSTION CHAMBER IS VERY HOT.

1.1) DANGER, WARNING AND CAUTION

The words DANGER, WARNING and CAUTION are used to identify the levels of seriousness of certain hazards. It is important that you understand their meaning. You will notice these words in the manual as follows:

CAUTION

ENVIRONMENTAL HAZARD – Failure to follow this caution may result in environmental pollution.

Remove and recycle all components or materials

(i.e. oil, electrical and electronic components, insulation, etc.) before unit final disposal.

CAUTION

These instructions are intended for the sole use of qualified personnel trained in installing this type of furnace. Installation of this furnace by an unqualified person can lead to hazardous conditions, resulting in bodily harm and/or equipment damage.

DANGER

Immediate hazards which WILL result in death or serious bodily and/or material damage.

IMPORTANT: For the installation of the sidewall vent of the Sealed Combustion System, refer to the VTK

Instruction Manual (X40142).

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) SAFETY INSTALLATION REQUIREMENTS

WARNING

For use with grade 2 fuel oil maximum. Do NOT use gasoline, crankcase oil or any oil containing gasoline.

WARNING

Never burn garbage or paper in the heating system and never leave rags or paper around the unit.

IMPORTANT : All local and national code requirements governing the installation of oil burning equipment, wiring and flue connections MUST be followed. Some of the codes that may be applicable are:

CSA B139 Installation code for oil burning equipment

Installation of oil burning equipment NFPA 31

ANSI/NFPA 90B Warm air heating and air conditioning systems

ANSI/NFPA 211 Chimneys, fireplaces, vents and solid fuel burning appliances

ANSI/NFPA 70 National electrical code or

CSA C22.1

Canadian electrical code

Only the latest issues of the above codes should be used, and are available from either:

The National Fire Protection Agency

Batterymarch Park

Quincy, MA 02269

The Canadian Standards Association

178 Rexdale Blvd.

Rexdale, Ontario

M9W 1R3

3

1.3) GENERAL

This furnace is a Low-Boy unit and may be operated in an upflow configuration only.

It is shipped as a packaged unit, complete with burner and controls. It requires a line voltage (115 VAC) connection to the control box, a thermostat hook-up as shown on the wiring diagram, oil line connection(s), suitable ductwork, and connection to a properly sized vent.

The air handling capacity of this furnace is also designed for cooling.

Refer to Table 5 for the expected airflow at various external duct static pressures, based on the model selected.

1.4) POSITIONING THE FURNACE

The unit must be installed in a location where the ambient and return air temperatures are above 15°C (60°F).

CAUTION

This furnace is not watertight and is not designed for outdoor installation. This furnace shall be installed in such a manner as to protect the electrical components from water. Outdoor installation will lead to hazardous electrical conditions and to premature furnace failure.

This furnace is approved for reduced clearances to combustible construction; therefore, it may be installed in a closet or similar enclosure. This unit may be located in a basement or on the same level as the area to be heated. Whichever the case, the unit must always be installed level.

In a basement, or when installed on the floor, as in a crawlspace, it is recommended that the unit be installed on a concrete pad that is 2.54 to 5.08 cm (1 to 2 " ) thick.

The required minimum clearances for this furnace are specified in

Table 6

The furnace should be positioned as closely as possible to the chimney or vent in order to keep vent connections short and direct. It should also be as close as possible to the centre of the air distribution system.

1.4.1) Air for combustion and ventilation

Refer to the CAN/CSA-B139 installation code for complete regulations, and for guidance on retrofit applications.

This furnace must be installed in a location that provides sufficient air for proper combustion, appropriate venting and the maintenance of an ambient temperature at safe limits under normal conditions of use. The location should not interfere with proper circulation of air within the confined space.

When this furnace is installed in a closet or enclosure, 2 ventilation openings are required for combustion air. The openings should be located about 15.24 cm (6 ") from the top and the bottom of the enclosure at the front of the furnace. Table 1 indicates the minimum ventilation opening dimensions required.

Table 1: Minimum ventilation openings dimensions required in a closet or enclosure

Input

(BTU/h)

75,000 – 105,000

120,000

– 155,000

Width

0.4 mm (16 " )

0.5 mm (20 " )

Height

0.20 mm (8 " )

0.25 mm (10 " )

CAUTION

Do not block the combustion air openings in the furnace. Any blockage will result in improper combustion and may result in a fire hazard and/or cause bodily harm.

Chimney installation only

The barometric draft regulator shall be installed in the same room or enclosure as the furnace, in such a manner as to prevent any difference in pressure between the regulator and the combustion air supply.

Air requirements for the operation of exhaust fans, kitchen ventilation systems, clothes dryers, and fireplaces shall be considered in determining the adequacy of the space to provide the required combustion air.

In unconfined spaces, in buildings of conventional frame, brick or stone construction, infiltration may be adequate to provide air for combustion, ventilation and dilution of flue gases. This determination must be made on an individual installation basis and must take into consideration the overall volume of the unconfined space, the number of windows and ventilation openings, the number of doors to the outside, internal doors which can close off the unconfined space and the overall tightness of the building construction.

Many new buildings and homes (even older ones that have been weatherized) must be considered as being of tight construction and, therefore, infiltration will not be sufficient to supply the necessary air for combustion and ventilation.

A building can be considered as being of tight construction when: a. Walls and ceilings exposed to the outside have a continuous water vapour retarder with a rating of one perm or less, with openings hermetically sealed and/or; b. Weather-stripping has been added on operable windows and doors, and/or; c. Caulking or sealant have been applied to areas such as joints around window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical and fuel lines and at other openings.

If combustion and ventilation air must be supplied to an unconfined space from the outside, an opening with a free area of not less than

6.45 cm 2 (one inch 2 ) per 1,000 BTU per hour of total input of all appliances within the unconfined space, but not less than 645.16 cm 2

(100 inches 2 ) must be provided. This opening must be located such a way that it cannot be blocked in any way, at any time.

4

1.4.2) Duct recommendations

The proper sizing of warm air ducts is necessary to ensure satisfactory furnace operation. Ductwork should be in accordance with the latest editions of ANSI / NFPA-90A (Installation of Air

Conditioning and Ventilating Systems) and NFPA-90B (Warm Air

Heating and Air Conditioning Systems) or Canadian equivalent.

The supply air ductwork should be attached to the flanged front opening provided at the discharge end of the furnace and the return air ductwork should be attached to the flanged rear opening of the furnace. See Figures 2, 3, 4 and 5, for the dimensions of these openings, based on the model selected.

The following recommendations should be followed when installing ductwork: a. Install locking type dampers in all branches of the individual ducts to balance out the system. Dampers should be adjusted to achieve the desired static pressure at the outlet of the furnace; b. A flexible duct connector of non-combustible material should be installed on both the supply and return air sections of the unit.

On applications where an extremely quiet operation is necessary, the first 3 m (10 ') of supply and return ducts should be internally lined with acoustical material, if possible; c. In cases where the return air grille is located close to the fan inlet, there should be at least one 90 o

air turn between the fan inlet and grille. Further reduction in noise levels can be achieved by installing acoustical air turning vanes or by lining the duct as described in b. above; d. When a single air grille is used, the duct between the grille and the furnace must be the same size as the return opening in the furnace.

WARNING

Return air grilles and warm air registers must not be obstructed.

CAUTION

When ducting supplies air to a space other than where the furnace is located, the return air ducts must be sealed and also be directed to the space other than where the furnace is located. Incorrect ductwork termination and sealing will create a hazardous condition that can lead to bodily harm.

1.4.3) Venting instructions (chimney installation)

The furnace must be vented to the outside, in accordance with local codes and other authorities having jurisdiction.

CAUTION

Oil fired appliances must be connected to flues having sufficient draft at all times to ensure safe and proper combustion.

For additional venting information refer to ANSI / NFPA 211

Chimneys, Fireplaces, Vents and Solid Fuel Burning Appliances and/or CSA B139 Installation Code.

This furnace is certified for use with a Type “L” vent.

Pre-installation inspection of vent system

Before installing this furnace, it is highly recommended that any existing vent system be completely inspected.

This inspection should include the following: a. Inspection for any deterioration in the chimney or vent. If deterioration is discovered, the chimney must be repaired or the vent must be replaced; b. Inspection to ascertain that the vent system is clear and free of obstructions. Any blockages must be removed before installing this furnace; c. Cleaning the chimney or vent if previously used for venting a solid fuel burning appliance or fireplace; d. Confirming that all unused chimney or vent connections are properly sealed; e. Verification that the chimney is properly lined and sized per the applicable codes (refer to list of codes in section 1.2).

Masonry Chimney

This furnace can be vented into an existing masonry chimney.

However, it must not be vented into a chimney servicing a solid fuel burning appliance. Before venting this furnace into a chimney, the chimney must be checked for deterioration and repaired if necessary. The chimney must be properly lined and sized per local or national codes.

If the furnace is vented into a common chimney, the chimney must be of sufficient area to accommodate the total flue products of all appliances vented into the chimney.

Following are the preconditions for a safe venting system: a. Ensure that the chimney flue is clear of any dirt or debris; b. Ensure that the chimney is not servicing an open fireplace; c. Never reduce the pipe size below the outlet size of the furnace; d. All pipes should be supported using the proper clamps and/or straps. These supports should be at least every 1.2 m (4 ') ; e. All horizontal runs of pipe should have an upward slope of at least 2 cm per 1 m (1/4 " per 1 ') ; f. All runs of pipe should be as short as possible with as few turns as possible; g. Seams should be tightly joined and checked for leaks; h. The flue pipe must not extend into the chimney but be flush with the inside wall; i. The chimney must extend 0.9 m (3 ') above the highest point where it passes through a roof of a building and at least 0.6 m

(2 ') higher than any portion of a building within a horizontal distance of 3 m (10 ') . It shall also be extended at lest 1.5 m (5 ') above the highest connected equipment flue collar; j. Check local codes for any variances.

Factory Built Chimneys

The furnace may be used with an approved factory built chimney.

R efer to chimney manufacturer’s instructions for proper installation.

1.4.4) Venting instructions

(Sealed Combustion System)

Refer to the sealed combustion system (VTK) Instruction Manual

(X40142).

1.4.5) Oil burner

This furnace is supplied with a high pressure atomizing retention head type burner (for use with not heavier than grade 2 fuel oil). If the burner model is a Beckett AFG, the mounting flange is fixed to the burner air tube and no adjustment is required for insertion length. If a Riello burner is used, refer to the Technical

Specifications, Table 3 for the insertion length.

5

CAUTION

NEVER use the “interrupted ignition” function if a

Honeywell R7184 series combustion relay is installed on the burner.

Oil Connections

Complete instructions for the installation of the fuel oil piping can be found in the oil burner installation instructions included with the furnace.

On models with a vestibule, 2 oil line entry holes are provided in the side panels, so that a two-pipe system may be used, if desired.

A 10 (or finer) micron oil filter should be used with all oil burners and installed as closely as possible to the burner.

Barometric Draft Control

A barometric draft control must be used with the furnace in chimney venting to ensure proper operation. Installation instructions are enclosed with the control.

1.4.6) Electrical

The appliance must be installed in accordance with the current

ANSI / NFPA 70 National Electrical Code / CSA C22.1 Canadian

Electrical Code Part 1 and/or local codes.

The control system depends on the correct polarity of the power supply. Connect “HOT” wire (H) and “NEUTRAL” wire (N) as shown in Figures 6, 7 and 8, based on the model selected.

A separate line voltage supply should be used with fused disconnect switch or circuit breaker between the main power panel and the unit.

When installing optional accessories on this appliance, follow the manufacturer’s installation instructions included with the accessory.

Other than wiring for the thermostat, wire with a mini mum of type “T” insulation (17 o

C rise (63 o

F)) must be used for accessories.

1.4.7) Air filter

An internal filter rack, located in the blower compartment, is provided as standard equipment with this furnace. A sufficient clearance should be provided for air filter access. Refer to Table 2 for filter rack flange dimensions for the return air duct.

DANGER

Do not use this furnace as a construction heater.

Use of this furnace as a construction heater exposes it to abnormal conditions, contaminated combustion air and the lack of air filters. Failure to follow this warning can lead to premature furnace failure and/or vent failure that could result in a fire hazard and/or bodily harm.

1.5) Blocked vent shut-off (BVSO)

For chimney venting

WARNING

It is imperative that this device be installed by a qualified agency.

CAUTION

The furnace cabinet must have an uninterrupted or unbroken electrical ground to minimize personal injury if an electrical fault should occur.

A green ground screw is provided in the control

This device is designed to detect the insufficient evacuation of combustion gases in the event of a vent blockage. In such a case the thermal switch will shut down the oil burner. The device will then need to be re-armed MANUALLY.

Refer to the wiring diagrams and the detailed instructions supplied with the BVSO for the installation and wiring procedures. The length of wires supplied with the unit is such that the safety device must be installed between the flue outlet of the appliance and the draft regulator, as indicated in the instructions. box for this connection.

Use only copper wire for 115V power supply to the unit.

Metallic conduit (where required/used) may terminate at the side panel of the unit. It is not necessary to extend the conduit inside the unit from the side panel to the control box.

When replacing any original furnace wiring, use only 105 o C,

16 AWG copper wire.

Instructions for wiring the thermostat are enclosed in the thermostat carton (field supplied). Make the thermostat connections as shown in Figures 6, 7 and 8, based on the selected model at the 24 Volt terminal board on the primary relay.

It is also essential that the BVSO be maintained annually. For more details refer to the instructions supplied with the device itself, as well as Section 3 of this Manual.

CAUTION

A positive pressure venting system (Sealed

Combustion System or Direct Vent) MUST NOT use the BVSO. Follow the instructions supplied with the venting system.

Table 2: Air filter dimensions for return air duct

Furnace

Model

Air Filter

Quantity and Size

Supply Opening Size Return Opening Size

AMT1-IM2, AMT1-SM1

AMT2-IM2, AMT2-SM3

(2) 12" x 20"

(2) 16" x 20"

0.5 m x 0.5 m (20" x 20")

0.6 m x 0.5 m (24" x 20")

0.5 m x 0.5 m (20" x 20")

0.55 m x 0.5 m (22" x 20")

6

PART 2 OPERATION

2.1) OPERATIONAL CHECKLIST

1=> Is the electrical wiring completed according to

Figures 6, 7 and 8?

5. The CO

2

and flue temperature instruments will enable you to obtain the data that are required to determine the terminal efficiency of the furnace. Although this information is good to have, it is not essential in the basic set up of the furnace.

The proper procedure for performing this operation is as follows:

2=> Is the blower access door secured in place?

3=> Is the valve on the oil line open?

4=> Is the “RESET BUTTON’’ on the primary control pushed down?

5=> Are the flame observation door and the two cleanout access doors located at the front of the unit closed? a. Start the appliance and from the test port near the

BREACH PLATE (VTK) location or on the flue pipe just before the draft regulator (chimney), proceed with smoke test and adjust the burner to get between a trace to a #1 smoke rating after a minimum of 5 minutes of operation; b. Take a CO

2

reading and write it down;

6=> Is the room thermostat in the heating mode and set above room temperature?

7=> If yes, put the main electrical switch to the “ON’’ position and the burner should start . c. Open the burner air shutter to get 1.5% CO

2

less than the previous reading and take a smoke test in this condition; d. The new reading should now be ZERO smoke;

CAUTION

Do not tamper with the unit or its controls. Call a qualified service technician.

6. A 10 micron (or finer) oil filter should be installed as closely to the burner as possible, on all oil burners, but it is particularly essential on lower firing rate burners. We recommend the use of a low pressure drop oil filter with a greater capacity than the fuel pump;

2.2) COMBUSTION CHECK

In order to obtain optimum performance from the oil burner, the following set-up procedures must be followed (refer to the technical specifications, Table 3, in this manual):

1. Using a test kit, measure the smoke level and adjust it to a

“trace” level (between 0 and 1). It is recommended to use a

Bacharach true spot smoke test set or equivalent;

7. On a new installation, the air entrapped in the oil line leading from the tank to the nozzle must be thoroughly purged in order to prevent excessive after drip. The oil pump is provided with a special fitting that will enable you to purge any air between the tank and oil pump;

The proper procedure for performing this operation is as follows: a.

Place a piece of 6 mm (1/4”) diameter clear plastic tubing over the purge fitting on the oil pump; b. Start the oil burner, then open the purge fitting and allow the burner to run until the purge tube is completely free of air bubbles;

2. For chimney installation only: in order to ensure the proper draft through the furnace, a barometric draft regulator must be installed as closely to the breach of the furnace as possible. In order for this device to function properly, the barometric damper must be mounted with the hinge pin horizontal and the face of the damper vertical (see instructions included with damper). The draft regulator should be adjusted after the furnace has been firing for at least five minutes and set between -.025

" W.C. and -.035

" W.C.;

3. For flue pipe pressure on sidewall installations (VTK), refer to the technical specifications, Table 3, in this manual;

4. The overfire draft, which is taken through the observation door

(located in the center line above the burner in the front panel of the furnace), is a measurement that is necessary to determine if there is a blockage in the heat exchanger or the flue pipe.

Refer to the Technical Specifications in this manual for overfire pressure values. A high pressure condition may be caused by excessive combustion air due to the air band being too wide open or a lack of flue draft (chimney effect) or some other blockage, such as soot, in the secondary section of the heat exchanger or the use of an oversize nozzle input or high pressure pump; c. At this point tighten the purge fitting, which will allow the oil to run to the nozzle and fire the burner. If the purging takes longer than 15 seconds and no flame has been established the burner will stop. Push the reset button on top of the Primary Control to restart burner.

For detailed information on the operation of the Primary Control refer to the instructions included with the furnace or burner.

8. After all the set-up procedures mentioned above are completed, the burner should be fired and an inspection mirror should be used to observe the flame pattern at the tip of the nozzle. Any irregularities such as burning to one side or pulsating flame patterns should be corrected by changing the nozzle.

2.3) FAN ADJUSTMENT CHECK

This furnace is equipped with a 4 speed direct drive motor to deliver a temperature rise within the range specified on the rating plate.

Adjust the fan speed ACCORDING TO THE OIL INPUT

SELECTED, so that the temperature rise is within the range specified on the rating plate (see Table 3). Consult the wiring diagram for speed changes on the direct drive motor.

The blower start / stop is controlled by a helical bi-metal Fan-Limit

Control, which is adjusted to start at 43°C (110°F) and stop at 32°C

(90°F). These are factory set limits which must not be changed or tampered with.

7

2.4) LIMIT CONTROL CHECK

The Limit Control is factory adjusted according to Figure 1.. After the furnace has been in operation for at least 15 minutes, restrict the return air supply by blocking the filters or closing the return registers and allow the furnace to shut down on high limit. The burner will shut

OFF and the main blower should continue to run.

Remove the restriction and the burner should come back on in a few minutes.

For Year Round Air Conditioning

The furnace is designed for use in conjunction with cooling equipment to provide year round air conditioning. The blower has been sized for both heating and cooling; however, the fan motor speed may need to be changed to obtain the necessary cooling airflow.

Heating

The blower speed is factory set to deliver the required airflow at normal duct static pressure.

Cooling

The blower speed may be adjusted in the field to deliver the required airflow for cooling, as outlined in Table 5, according to the selected model.

Constant Blower Switch

This furnace is equipped with a constant low speed blower option.

Whenever the room thermostat is not calling for heating or cooling, the blower will run on low speed in order to provide air circulation. If this constant blower option is not desired, the rocker switch on the side of the control box can be used to “turn off” this feature.

2.4.1) Fan-Limit adjustment and blower regulator

Modification of the “FAN ON” and “HI” limit settings on the Fan-Limit can cause malfunctioning of the furnace and result in premature wear of the heat exchanger.

CAUTION

Modification of the factory set limits will void the warranty.

Figure 1: Fan-limit adjustment and blower regulator

DNS-0355 Rev A

1 Limit “FAN OFF”

2 Limit “FAN ON”

3 Limit “HI”

Model: AMT1-SM1 & AMT1-IM2

Model: AMT2-IM2

Model: AMT2-SM3

90

110

170

190

180

°

°

°

°

°

F

F

F

F

F

8

PART 3 MAINTENANCE

This furnace should never be operated without an air filter.

Disposable filters should be replaced at least once a year. If equipped to provide cooling, filters should be replaced a minimum of twice a year.

To avoid personal injury, make sure the power is “OFF” before servicing.

ALWAYS KEEP THE OIL VALVE CLOSED IF THE BURNER IS

SHUT DOWN FOR AN EXTENDED PERIOD OF TIME.

3.2) BLOWER REMOVAL

To remove the blower from the furnace:

1. Turn “OFF” all power upstream from the furnace;

2. Remove blower access door;

3. Remove the 4 blower retaining wing-nuts;

4. Slide the blower on the rails toward the rear of the unit;

5. Reverse the above steps to reinstall the blower. (Refer to wiring diagram Figures 6, 7 and 8 of this instruction manual or the diagram located on the inside of the blower door to properly rewire the unit.

WARNING

Be sure to turn all power “OFF” upstream from the unit when servicing the furnace, unless power is required for specific operations. Failure to comply with this CAUTION can result in bodily harm and/or cause a fire hazard.

3.3) BLOCKED VENT SHUT OFF (BVSO)

CLEANING

For continued safe operation, the Blocked Vent Shut-Off System

(BVSO) needs to be inspected and maintained annually by a qualified service technician.

For optimum performance, the oil burner nozzle should be replaced at least once a year.

The procedure for the installation and/or replacement of a nozzle is outlined in the oil burner instruction manual which is supplied with the furnace.

After replacing the nozzle, the burner should be adjusted in accordance with the “COMBUSTION CHECK” section of this manual.

3.1) HEAT EXCHANGER CLEANING

Normally, it is not necessary to clean the heat exchanger or flue pipe every year, but it is advisable to have a qualified service technician check the unit before each heating season to determine whether cleaning or replacement of parts is required.

If cleaning is necessary, the following steps should be followed:

1. Disconnect the power to the appliance;

2. Remove the two screws holding down the BVSO assembly cover;

3. Remove the cover;

4. Remove the two screws holding the control box to the heat transfer tube assembly. Sliding the control box in the appropriate direction will unlock it form the heat transfer tube assembly;

5. Carefully remove any build-up from the thermal switch surface;

Do not dent or scratch the surface of the thermal switch. If the thermal switch is damaged, it must be replaced.

CAUTION

6. Clear and remove any build-up or obstruction inside the heat transfer tube;

1. Turn “OFF” all power upstream from the furnace ;

2. Disconnect the flue pipe and breach plate. On sealed combustion systems do not disconnect the flue pipe, remove the breach plate only;

7. Re-mount, lock and fasten the control box with the 2 screws removed in step 4;

8. Re-attach the assembly cover with the screws removed in step 2;

9. Re-establish power to the appliance.

3. Remove the radiator baffle;

4. Disconnect the oil line and remove the oil burner from the furnace;

5. Clean the secondary tubes and the primary cylinder with a stiff brush and remove debris with a vacuum cleaner;

6. Before reassembling the furnace, the heat exchanger and combustion chamber should be inspected to determine if replacement is required;

7. After cleaning, replace the radiator baffle, flue collar plate and oil burner;

8. Readjust burner for proper operation.

9

Model:

Furnace installation date:

Service telephone # - Day:

Dealer name and address:

START-UP TEST RESULTS

Nozzle:

Burner adjustments:

CO

2

:

Primary air

Fine air

Drawer Assembly

% Smoke scale:

Gross flue temperature:

Ambient temperature:

PART 4 INFORMATION

Serial number:

°F

°F

Night:

Pressure:

Chimney draft:

Overfire draft:

Test performed by:

" W.C."

" W.C." lb/psi

(Bacharach)

10

Table 3: Technical specifications for models AMT1/AMT2 (with 3/4 motor)

75 90 105 120 140 Models: AMT1 and AMT2

RATING AND PERFORMANCE

Firing rate (USGPH)

Input (BTU/h)

Heating capacity (BTU/h)

Heating temperature rise

Flue draf t minimum (W.C.) (chimney)

Overf ire pressure (W.C.) (chimney)

Flue draf t minimum (W.C.) (direct vent)

Overf ire pressure (W.C.) (direct vent)

BECKETT BURNER; MODEL AFG (3450 rpm )

Low f iring rate baf f le

Static disc, model

Nozzle (Delavan)

Pump pressure (PSIG)

Combustion air adjustment (band/shutter)

AFUE % (From CSA B212 standard and Canadian regulation)

RIELLO BURNER 40-F (Chim ney vent)

Nozzle (Delavan)


Combustion air adjustment (turbulator/damper)


RIELLO BURNER 40-BF (Direct vent)

Nozzle (Delavan)


Combustion air adjustment (turbulator/damper)


ELECTRICAL SYSTEM

Volts - Hertz - Phase

Operating voltage range

Rated current (Amps)

Minimum ampacity f or w iring sizing

Max. w ire lenght

Max. f use size (Amps)

Control transf ormer

External control pow er available Heating

Cooling

BLOWER DATA

Blow er speed at 0.50" W.C. static pressure


Motor HP / Speeds

Blow er w heel size

GENERAL INFORMATION

Overall dimensions (w idth x depth x height)

Supply air opening

Return air opening

Filter quantity and size

Shipping w eight

Air conditioning, maximum output

0.50

70 000

0.65

91 000

0.75

105 000

57 000 74 000

13 - 29°C (55 - 85°F)

85 000

(-0.06" to -0.025")

(+0.010" to 0.025")

AFG-F3 (tube insertion 2 7/8")

0.50 - 70W

100

0 / 5

82,4%

APPLICABLE

3 3/8" # 31646

0.55 - 70B

140

0 / 7

80,9%

0.65 - 70B

130

0 / 8

81,1%

F3 (tube insertion 3 9/16")

0.40 - 70A 0.50 - 70W 0.65 - 70W

155 170 135

0 / 3

84,4%

0 / 3.5

82,9%

0 / 4

83,1%

MED-LOW

MED-LOW

115 - 60 - 1

104 - 132

12.2

13.7

26'

15

40 VA

40 VA

30 VA

MED-HIGH

MED-HIGH

1/3 - 4

10" x 8"

21¼" x 55" x 32"

20" x 20"

20" x 20"

(2) 12" x 20"

86 kg (190 lbs)

3 tons

HIGH

HIGH

0.85

119 000

97 000

1.00

140 000

1,10

154 000

115 000

13 - 29°C (55 - 85°F)

(-0.06" to -0.025")

126 000

(max +0.025")

(+0.10" to +0.25")

(+0.12" to +0.27")

AFG-F3 (ins. 2 7/8")

APPLICABLE

2 3/4" # 3383

0.75 - 70B

130

1 / 8

81.4%

0.85 - 70B

140

4 / 4

80.3%

AFG-F6(2 7/8")

APPLICABLE

2 3/4" # 3383

0.85 - 70B

170

2 / 8

80.1%

F5 (tube insertion 3 9/16")

0.75 - 70B 0.85 - 70W

130 140

0 / 3

84.7%

0 / 3.5

83.9%

1.00 - 70W

125

0 / 4

83.1%

BF5 (tube insertion 2 3/4")

0.75 - 70B 0.85 - 70W 1.00 - 70W

130 140 125

0 / 3.75

84.7%

1/4

83.9%

1.5/5

83.1%

MED-LOW

LOW

115 - 60 - 1

104 - 132

15.7

18.1

26'

20

40 VA

40 VA

30 VA

MED-HIGH

MED-LOW

3/4 - 4

12" x 10"

155

HIGH

MED-HIGH

21¼" x 61½" x 35¼"

24" x 20"

20" x 22"

(2) 16" x 20"

97 kg (215 lbs)

5 tons

Table 4: Technical specifications for model AMT2 (with 1/3 HP motor)

Models: AMT1 and AMT2

RATING AND PERFORMANCE (SEE TABLE 3)

ELECTRICAL SYSTEM (SEE TABLE 4 WITH 1/3 HP MOTOR)

BLOWER DATA



Motor HP / Speeds

Blow er w heel size

120

MED-LOW

LOW

140

MED-HIGH

MED-LOW

1/3 - 4

10" x 10"

155

HIGH

MED-HIGH

11

SPEED

HIGH

MED-HIGH

MED-LOW

LOW

Table 5: Air delivery - CFM with air filter

0.2" (W.C.)

1425

1130

840

725

AMT75 to AMT105 (1/3 HP MOTOR)

EXTERNAL STATIC PRESSURE WITH AIR FILTER

0.3" (W.C.)

1350

1045

810

730

0.4" (W.C.)

1305

1000

770

740

0.5" (W.C.)

1250

950

740

745

SIDES

BACK

TOP

BOTTOM

FLUE PIPE

FRONT

SPEED

HIGH

MED-HIGH

MED-LOW

LOW

SPEED

HIGH

MED-HIGH

MED-LOW

LOW

LOCATION

0.2" (W.C.)

2080

1892

1556

1221



0.3" (W.C.) 0.4" (W.C.)

2041

1859

1475

1164

1965

1770

1394

1081



0.2" (W.C.) 0.3" (W.C.) 0.4" (W.C.)

1650

1450

1215

850

1600

1360

1180

845

1560

1305

1130

840

Table 6: Minimum clearances - combustible materials

0.5" (W.C.)

1864

1675

1318

998

0.5" (W.C.)

1510

1250

1100

840

APPLICATION

CLEARANCES

(combustible materials)

RECOMMENDED

ACCESS FOR SERVICE

FURNACE

SUPPLY PLENUM WITHIN 1.8 M (6') OF FURNACE

ACCESS PANEL TO BLOWER

2.54 cm (1")

2.54 cm (1")

10.16 cm (4")

FURNACE OR PLENUM 50.8 mm (2")

HORIZONTAL WARM AIR DUCT WITHIN 1.8 m (6') OF FURNACE 50.8 mm (2")

FURNACE (COMBUSTIBLE FLOOR)

HORIZONTALLY OR BELOW FLUE PIPE

0"

10.16 cm (4")

VERTICALLY ABOVE FLUE PIPE

FURNACE

22.86 cm (9")

20.32 cm (8")

0.6 m (24")

0.6 m (24")

0.6 m (24")

12

Figure 2: Model AMT1-IM2

Figure 3: Model AMT1-SM1

13

Figure 4: Model AMT2-IM2

Figure 5: Model AMT2-SM3

14

Figure 6: Wiring diagram AMT1-IM2 and AMT2-IM2

15

16

Figure 7: Wiring diagram AMT1-SM1 and AMT2-SM3, heating only

Figure 8: Wiring diagram MT1-SM1 and AMT2-SM3, heating and optional cooling

17

Figure 9: Parts list - AMT1-IM2

18

B50054B

ITEM

35

36

37

38

39

40

29

30

31

32

33

34

26

27

28

25A

25B

25C

25D

47

48

49

50

41

42

43

44

45

46

51A

51B

52

19

20

21

22

23

24

13

14

15

16

17

18

10

11

12

7

8

9A

9B

3

4

5

6

1

2

B50054B

Table 7: Parts list - AMT1-IM2

DESCCRIPTION

HEAT EXCHANGER ASSEMBLY

FLOOR BAFFLE

BOTTOM DIVIDER ASSEMBLY

DD BLOWER SUPPORT

BAFFLE

PANEL ASSEMBLY, LEFT SIDE

INSULATION, LEFT SIDE PANEL

FILTER SUPPORT

SMOKE BOX

COVER ASSEMBLY, SMOKE OUTLET

FLOOR ASSEMBLY

INSULATION

BAFFLE ASSEMBLY

PANEL ASSEMBLY, TOP REAR

DOOR ASSEMBLY, REAR

DIVIDER, TOP

FILTER SUPPORT

PANEL ASSEMBLY, RIGHT SIDE

INSULATION, RIGHT SIDE PANEL

FRONT PANEL ASSEMBLY

INSULATION, FRONT PANEL ASSEMBLY

TOP PANEL, ELECTRICAL COMPARTMENT

BURNER COMPARTMENT, RIGHT SIDE

ELECTRICAL PANEL

ELECTRICAL PANEL, INTERIOR

ACCESS DOOR ASSEMBLY

INSULATION, ACCESS DOOR

INSULATION, ACCESS DOOR SIDE


CORNER CONDUIT

BURNER COMPARTMENT, LEFT SIDE

FAN LIMIT, 11-1/2"

MOTOR ASSEMBLY 1/3 HP

BLOWER ASSEMBLY, REPLACEMENT

BLOWER, 100-8R DD

OBSERVATION DOOR ASSEMBLY

CAPACITOR, 5 MF

PAPER FILTER, 12" x 20" x 1"

FLANGE NUT, HEXAGONAL 3/8-16NC BRASS

GASKET, SMOKE PIPE COVER

THERMODISC PLATE

ROCKER SWITCH, SPST

THUMBSCREW KIT ASSEMBLY

SINGLE TERMINAL STRIP, 6 BUSS

TRANSFORMER, 120-24VAC

RELAY, SPDT 24 VAC

SCREW TERMINAL STRIP, 6-POSITION

CAPACITOR SUPPORT

GASKET, PEEP HOLE

HANDLE, RECESSED, BLACK

BUSS RETAINING CLIP

SEAL STRIP, 1/4" x 1/8" x 25'

ELECTRICAL KIT, BVSO EXT.

BLOCKED VENT SHUT-OFF BVSO-225

BURNER ASSEMBLY, BECKETT AFG-F3

BURNER, RIELLO 40-F3

INTERIOR BVSO ELECTRIC KIT

COMMENTS

Heat exchanger only

Panel and 3 gaskets included

Panel, insulation, baffle and filter rack included

Floor, baffle and insulation included

Panel and insulation included

Door, handle and insulation included



Units fabricated before 2014-12-31 use B04379

Motor and motor support assembly

Blower, motor and capacitor

19

PART #

B01384

B01258-01

B01259-02

B01259-01

B01220

B01716-02

R02I009

B01890-01

B01403-01

B03720-02

B02111

L01I001

Z04F008

F07O001

B01214

B01721-02

L07F003

K03009

L05F001

L01F009

L01H009

A00294

B01024

B01014

Z99F050

L05F007

J06L002

B03118-01

Z06G001

B00569

N01F011

B03377-01

B03374-02

B03202

B01710

B01709-01

B03197-01

B03216-01

B01827-01

B01722

B01208

B01716-01

B01133

B01209

B01701

B01708

B01725

B01724

B01707

B03197-03

B03216-02

B03371-01

B01697

B02200

B01812

B01526-23

B01826-01

Figure 10: Parts list - AMT1-SM1

20

B50055B

ITEM

28

29

30

31

32

33

34

35

36

37

38

39

40A

40B

40C

41

19

20

21

22

23

24

25

26

27

10B

11

12

13

14

7

8

9

10A

15

16

17

18

1

2

3

4

5

6

Table 8: parts list - AMT1-SM1

DESCRIPTION COMMENTS PART #


FLOOR BAFFLE


DD BLOWER SUPPORT

BAFFLE


INSULATION, SIDE PANEL

FILTER SUPPORT

CAPACITOR SUPPORT

SMOKE BOX


FLOOR ASSEMBLY

BAFFLE ASSEMBLY

PANEL, TOP REAR

REAR DOOR ASSEMBLY

DIVIDER, TOP

FILTER SUPPORT


INSULATION, SIDE PANEL

Heat exchanger only


Panel, insulation, baffle et filter rack included

Door, handle and labels included

Panel, insulation, baffle et filter rack included


INSULATION, FRONT PANEL

THERMODISC PLATE


CORNER CONDUIT

COMPARTMENT COVER

ELECTRICAL COMPARTMENT

MOTOR SUPPORT ASSEMBLY 1/3 HP

BLOWER ASSEMBLY, REPLACEMENT

BLOWER, 100-8R DD

CAPACITOR, 5 MF





FAN LIMIT, 11-1/2"

GASKET, PEEP HOLE

ROCKER SWITCH, SPST


Blower, motor and capacitor included


SEAL STRIP, 1/4" x 1/8" x 25'




BURNER, RIELLO 40-F3

BURNER ASSEMBLY, BECKETT (SEALED COMBUSTION)

INTERIOR BVSO ELECTRIC KIT

B01827-01

B01722

B01843

B02111

B01818

L02F004

L02F003

B01890-01

B01403-01

B03720-02

L01I001

Z99F050

Z04F008

F07O001

B01214

R02I009

B01014

L07F003

J06L002

B03118-01

Z06G001

B00569

N01F042

B02240-01

B03333-01

B01701-01

B01708

B01725

B01724

B01707

B03196-03

B01723-02

B03371-01

B01024

B01697

B02200

B01733-01

B01826-01

B03370-01

B03203-01

B01710

B01709-01

B03196-01

B01723-01

21

22

Figure 11: Parts list - AMT2-SM3

B50056B

ITEM

1

2

28

29

30

24

25

26

27

21

22A

22B

23

17

18

19

20

13

14

15

16

9B

10

11

12

7

8

9A

5

6

3

4

39

40A

40B

40C

40D

41

35

36

37

38

31

32

33

34

B50056C

DESCRIPTION


FLOOR BAFFLE

Table 9: Parts list - AMT2-SM3

COMMENTS

Heat exchanger only


DD BLOWER SUPPORT

LATERAL BAFFLE



FILTER SUPPORT

SMOKE BOX


RADIATOR BAFFLE


DOOR ASSEMBLY, REAR

DIVIDER, TOP

FILTER SUPPORT


INSULATION, RIGHT SIDE PANEL



ELECTRICAL WIRING RACEWAY

WIRE CHANNEL

FLOOR ASSEMBLY

MOTOR ASSEMBLY 1/3 HP

BELLY BAND ASSEMBLY

BLOWER ASSEMBLY, REPLACEMENT (CV 0,50 PP)

BLOWER, 100-10R DD

CAPACITOR, 5 MF




FAN LIMIT, 11-1/2"

ROCKER SWITCH, SPST


CAPACITOR SUPPORT

GASKET, PEEP HOLE


ELECTRICAL COMPARTMENT

COMPARTMENT COVER

SEAL STRIP, 1/4" x 1/8" x 25'





BURNER ASSEMBLY, RIELLO 40-F5

BURNER ASSEMBLY, RIELLO 40-BF5

INTERIOR BVSO ELECTRICAL KIT



Door, handle and label included






PART #

B01741

B01708

B01768-01

B01767

B01830

B01763

B01769

B01890-01

B01888

B01404-01

B03720-01

L01I001

Z04F010

F07O001

B00205

R02I009

L07F003

B01831

B01756

B01750

B03205-02

B01766-02

B01761-02

B01747

B02225

B01751

B03381-01

B03201-05

B01754

B03352-01

B03205-08

B01766-01

B02111

B01024

B01014

Z99F050

L02F003

L02F004

J06L002

B03118-01

Z06G001

B00570

B00571

N01F043

N01F010

B03333-02

23

Figure 12: Parts list - AMT2-IM2

24 B50057C

ITEM

15

16

17

18

11

12

13

14

19

20

21

22

23A

23B

23C

23D

24

25

26

27

28

1

6

7

8

9A

4

5

2

3

9B

10

44

45

46

47

40

41

42

43

48

49

50

33

34

35

36

29

30

31

32

37

38

39

51A

51B

51C

52

53

Table 10: Parts list - AMT2-IM2

DESCRIPTION


FLOOR BAFFLE


DD BLOWER SUPPORT

LATERAL BAFFLE



FILTER SUPPORT

BREECH PLATE


SOUND TRAP ASSEMBLY


DOOR ASSEMBLY, REAR

DIVIDER, TOP

FILTER SUPPORT


INUSLATION, RIGHT SIDE PANEL

PANEL ASSEMBLY, FRONT


TOP PANEL, ELECTRICAL COMPARTMENT

BURNER COMPARTMENT, RIGHT SIDE

ELECTRICAL PANEL

ELECTRICAL PANEL, INTERIOR

ACCESS DOOR ASSEMBLY

INSULATION, ACCESS DOOR



CORNER CONDUIT

BURNER COMPARTMENT, LEFT SIDE

WIRE CHANNEL

FLOOR ASSEMBLY

INSULATION

MOTOR 3/4 DD 4V

BLOWER ASSEMBLY REPLACEMENT

BLOWER, 120 - 10T DD

CAPACITOR 15 MF

FILTER, PAPER, 16x20x1

FLANGE NUT, HEXAGONAL, 3/8-16NC BRASS


FAN LIMIT 11 1/2"

ROCKER SWITCH, SPST

THUMBSCREW KIT ASSEMBLY


BUSS RETAINING CLIP

SINGLE TERMINAL STRIP 6 BUSS

TRANSFORMER 120-24Volts

RELAY, SPDT 24 VAC

SCREW-TERMINAL STRIP, 6 POSITIONS

CAPACITOR SUPPORT

GASKET, PEEP HOLE

SEAL STRIP 1/4" X 1/8" X 25'

RECESSED HANDLE, BLACK


BLOCKED VENT SHUT-OFF, BVSO-225



BURNER, RIELLO 40 F5 VSBT

BELLY BAND ASSEMBLY

INTERIOR BVSO ELECTRICAL KIT

COMMENTS

Heat exchanger only





Door and insulation included



B50057D

25

No DESSIN

B01741

B01708

B01764

B01756

B01750

B03204-02

B03217-02

B01761-02

B01747

B02225

B01751

B03384-02

B03200

B01754

B03352-01

B03204-03

B03217-01

B01768-02

B01767

B01208

B01716-01

B01133

B01209

B01384

B01258-01

B01259-02

B01259-01

B01220

B01716-02

B01763

B01867

B01526-22

L06I004

B01406-02

B03720-05

L01I005

Z04F010

F07O001

B00205

R02I009

L07F003

K03009

B02111

L05F007

L05F001

L01F009

L01H009

A00294

B01024

B01014

J06L002

Z99F050

B03118-01

Z06G001

B00570

B00571

N01F012

B01889

B01889

Dettson AMT100/200 Rev.D Owner Manual

TABLE OF CONTENTS

FIGURES

TABLES

PART 1 INSTALLATION

FOR YOUR SAFETY

DANGER

CAUTION

CAUTION

DANGER

PART 2 OPERATION

PART 3 MAINTENANCE

PART 4 INFORMATION

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