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Installation and Operation Manual  -  

ODF, ODR, OUF, OLF & OLR Series

6

Combustion and Ventilation Air

Adequate  provisions  for  combustion  air,  ventilation  of
furnace, and dilution of the gases must be made.  When a
furnace is installed in an unconfined space in a building, it
can be assumed that infiltration will be sufficient to supply
the required air.

If the furnace is installed in a confined space and combustion
air  is  taken  from  the  heated  space,  the  supply  air  and
ventilating air must be through two permanent openings of
equal area.  A confined space is “a space whose volume is
less  than 50 cubic feet per 1000 btu per hour of the combined
input rating of all appliances installed in that space.”  One
opening must be within 12” of the ceiling and the other within
12” of the floor.  Each opening must have a minimum free
area of at least 1 square inch per 1000 btu per hour of total
input rating of all appliances with the space but not less than
100 square inches.

If the furnace is installed in a space within a building of tight
construction, air must be supplied from outdoors.  In this
case, one opening shall be within 12” of the ceiling and the
other within 12” of the floor.  If vertical combustion ducts are
run, each opening must have a free area of at least 1 square
inch per 4000 btu per hour.  If horizontal combustion ducts
are run, 1 square inch per 2000 btu per hour of the total
input of all appliances is required.

The furnace is designed to use air inside the dwelling for
combustion.  If additional combustion air is required, installing
fresh air kit ABOOT571 allows air from outside the dwelling
to be brought in to the oil burner.  This kit brings air into the
burner through air inlet ductwork run through the furnace
cabinet side panel and terminated outside the dwelling (see
Figure 4).  The kit includes a vacuum relief valve to guard
against  combustion  problems  associated  with  directly
connecting oil burners to the outside.

A return air duct system is recommended.  Where there is
no  complete  return  air  duct  system,  a  return  connection
should  be  run  full  size  to  a  location  outside  the  confined
space and completely sealed so that no air from the confined
space can be circulated through the heating duct system.

Outdoor Make Up Air

A minimum mixed return air temperature of 60 -  65°F must
be  maintained  for  outdoor  make  up  air  to  prevent
condensation and corrosion.

Venting

Chimney

Before installing the furnace, a thorough inspection of the
chimney should be made to determine whether repairs are
necessary and that the chimney is of the proper size and
constructed  in  accordance  with  the  requirements  of  the
National Board of Fire Underwriters or Canadian Standards
Association.  The smallest dimension of the chimney should
be  at  least  equal  to  the  diameter  of  the  flue  pipe  of  the
furnace.  Be sure the chimney will produce a steady draft
sufficient to remove all the products of combustion from the
furnace.  A fabricated vent system the same size as the flue
outlet of the furnace may also be used.  If a manufactured
vent is used, it must be listed for use with oil-fired equipment.

1.

Local building codes may have more stringent installation
requirements a nd should be consulted before installation
of the unit.

Figure 4

Fresh Air Kit ABOOT571 Installation

IMPORTANT:  No more than 10’ of vertical piping allowed without
weight support.

This furnace is certified for use with Type “L” vent, Type
“A”, and “factory-built” chimneys.  “B” vent must not be
used with oil furnaces.

  

WARNING

The barometric control shall be in the same atmospheric
pressure zone as the combustion air inlet to the furnace.
Deviation from this practice will cause improper burner
operation and may result in a fire hazard or injury.

  

WARNING

Combustion air openings in the front of the furnace must
be kept free of obstructions.  Any obstruction will cause
improper burner operation and may result in a fire hazard
or injury.

  

WARNING

Summary of Contents for ODF Series

Page 1: ...Installation and Operation Manual ODF ODR OUF OLF OLR Series Oil Fired Furnaces 517 787 2100 www marsdelivers com www heatcontroller com ...

Page 2: ...ge or paper in the heating system and never leave rags paper or any flammable items around the unit CAUTION The installation of the furnace wiring warm air ducts venting etc must conform to the requirements of the National Fire Protection Association Standard for the Installation of Oil Burning Equipment NFPANo 31 the National Electrical Code ANSI NFPA No 70 in the USA the Installation Code for Oi...

Page 3: ...ure gauge adjust pressure to 140 psig except on 57 models adjust to 100 psig _________ Always verify proper pump pressure to corresponding tables with instructions supplied with unit F After 10 minutes of operation obtain flue temperature reading 1st ______________ 2nd ________________ 3rd ______________ G Obtain smoke reading 1st _______________ 2nd _________________ 3rd ______________ H Measure ...

Page 4: ...is furnace is shipped in one package completely assembled and wired The thermostat is shipped in a separate carton when ordered Upon receipt of equipment carefully inspect it for possible shipping damage If damage is found it should be noted on the carrier s freight bill Damage claims should be filed with the carrier immediately Claims of shortages should be filed with the seller within 5 days Loc...

Page 5: ...d to discharge warm air out the left side when viewed facing the burner side of the furnace If installation requires that the flow be reversed follow these steps 1 Rotate the furnace 180 so that the warm air is discharged out the right side 2 Remove the oil burner and the screws securing the burner mounting plate Rotate the burner mounting plate 180 and reattach with screws Remount the burner in t...

Page 6: ...ney for inspection or replacement of the flue connector when necessary Counterflow Closet Installation s e c n a r a e l C m u m i n i M s n o i t a l l a t s n I w o l f r e t n u o C A s e d i S 1 B p o T m u n e l P n r u t e R 0 C e d i S m u n e l P y l p p u S 1 D e d i S m u n e l P n r u t e R 0 E m o t t o B m u n e l P y l p p u S 1 F t n o r F 6 1 G r a e R 1 H e u l F 1 J p o T 0 Figur...

Page 7: ... combustion problems associated with directly connecting oil burners to the outside A return air duct system is recommended Where there is no complete return air duct system a return connection should be run full size to a location outside the confined space and completely sealed so that no air from the confined space can be circulated through the heating duct system Outdoor Make Up Air A minimum ...

Page 8: ...oot and should be supported by something other than the furnace see Figure 6 on this page and Figure 7 on page 8 9 Extend the flue pipe into the chimney so that it is flush with the inside of the flue liner Seal the joint between the pipe and the liner 10 The furnace shall be connected to a factory built chimney or vent complying with a recognized standard or a masonry or concrete chimney lined wi...

Page 9: ...g the sidewall system Maximum permissible vent length is 100 equivalent feet and minimum permissible length is 15 equivalent feet Calculate the equivalent vent pipe footage from the furnace to the mechanical vent system by adding the straight vent pipe length and equivalent elbow lengths together Each 90 elbow is equivalent to 10 of straight pipe each 45 elbow is equal to 5 of straight pipe Remova...

Page 10: ...ey with galvanized smoke pipe and fittings maintaining full diameter of furnace vent throughout No reduction in diameter of pipe is allowed It is best to have smoke pipe as short and direct as possible The smoke pipe shall maintain a rise of at least 1 4 per foot Install draft control at least 12 beyond the furnace If there is no space to install the draft control in the smoke pipe it may be insta...

Page 11: ... supply air from a register Make sure the location is not adjacent to appliances such as ovens or lights Wire the thermostat with minimum of 18 AWG thermostat wire Humidifier A humidifier can be installed with this furnace Refer to the humidifier manufacturer s instructions for specific connection information see also Figure 11 on page 13 Electronic Air Cleaner An electronic air cleaner can be ins...

Page 12: ...et clean fire which will prevent sooting and frequent cleaning To establish tolerance or a window of operation into the unit do not exceed 1 smoke This will give the burner more flexibility when there are changes in the surrounding environment To adjust the burner 1 Punch a 5 16 diameter service hole in the flue outlet This sampling hole should be at least two flue diameters above the breeching or...

Page 13: ...2 Always keep the valve shut off if the burner is shut down for an extended period of time Flue Pipe Have the flue pipe inspected annually by a qualified service technician If any soot or ash has formed inside the flue pipe remove and clean If the flue pipe has any holes or is rusted out replace with a new flue pipe of the same size Inspect the flue draft control device and replace if defective Bl...

Page 14: ...uld be used only until the correct parts can be obtained and installed Complete National Fuel Gas Codes are available from 1 American Gas Association 1515 Wilson Boulevard Arlington VA 22209 2 National Fire Protection Association Inc 1 Battery March Park Quincy MA 02269 3 American National Standards Institute Inc Publications Sales Department 11 West 42nd Street New York NY 10036 Figure 11 Humidif...

Page 15: ...Installation and Operation Manual ODF ODR OUF OLF OLR Series 14 Figure 13 Wiring Diagram Direct Drive ...

Page 16: ...Installation and Operation Manual ODF ODR OUF OLF OLR Series 15 Figure 14 Wiring Diagram Belt Drive Heating Only ...

Page 17: ...stallation and Operation Manual ODF ODR OUF OLF OLR Series 16 Figure 15 Wiring Diagram for Horizontal Venting with the Tjernlund System Wiring Diagram for Horizontal Venting with the Field Control System ...

Page 18: ...Installation and Operation Manual ODF ODR OUF OLF OLR Series 17 ...

Page 19: ...Installation and Operation Manual ODF ODR OUF OLF OLR Series 18 ...

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