Comfortaire OLF Series Manuel utilisateur

Installation and Operation Manual

ODF, ODR, OUF, OLF & OLR Series

Oil-Fired Furnaces

517.787.2100 • www.marsdelivers.com • www.heatcontroller.com

Installation and Operation Manual - ODF, ODR, OUF, OLF & OLR Series

INSTALLATION INSTRUCTIONS

ODF, ODR, OUF, OLF, & OLR

Oil-Fired Furnaces

Save these instructions for future reference

TABLE OF CONTENTS

START-UP CHECKLIST ................................................ 2

INSTALLATION ............................................................. 3

Location .................................................................. 3

Clearances .............................................................. 3

Venting .................................................................... 6

Filters ................................................................... 10

START-UP ................................................................... 10

SEQUENCE OF OPERATION .................................... 12

MAINTENANCE .......................................................... 12

WIRING DIAGRAMS .................................................. 14

Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage.

Refer to this manual. For assistance or additional information, consult a qualified installer or service

agency.

WARNING

Do not store combustible materials, including gasoline

and other flammable vapors and liquids, near the

furnace, vent pipe, or warm air ducts. The homeowner

should be cautioned that the furnace area must not be

used as a broom closet or for any other storage

purposes. Such uses may result in actions that could

cause property damage, personal injury, or death.

WARNING

Never burn garbage 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, NFPA No. 31; the National Electrical Code,

ANSI/NFPA No. 70 (in the USA); the Installation Code for Oil Burning Equipment, CSA Standard CAN/CSA B139 (in

Canada); the Canadian Electrical Code Part 1, CSA 22.1; the Recommendations of the National Environmental Systems

Contractors Association; and any state or provincial laws or local ordinances. Local authorities having jurisdiction should

be consulted before installation is made. Such applicable regulations or requirements take precedence over the general

instructions in this manual.

CAUTION

This furnace is not approved for installation in a mobile

home. Do not install this furnace in a mobile home.

Installation in a mobile home could result in actions that

could cause property damage, personal injury, or death.

WARNING 1900 Wellworth Ave.

Jackson, MI 49203

www.marsdelivers.com

www.heatcontroller.com

Installation and Operation Manual - ODF, ODR, OUF, OLF & OLR Series

OIL FURNACE START-UP CHECKLIST

(Complete this page and keep for future reference)

Furnace Location:

A. Basement – Open _________ Enclosed* ________

B. Utility room – Open ________ Enclosed* ________

C. Closet – Open ____________ Enclosed* ________

D. Crawl space – Open _______ Enclosed* ________

* Provisions must be made for adequate air for combustion.

See Combustion and Ventilation Air on page 7.

Chimney Data:

A. Inside _________ Outside _________

B. Brick or Masonry _________

C. Lined _________ Size: ___________

D. Type: Class A all-purpose ___________ Type L ________

E. Condition ________________________

Flue Pipe:

A. Distance to chimney ____________ Pitch __________

B. Diameter _____________________

C. Barometric damper installed __________

D. Drill 5/16" hole in flue pipe 12" upstream of barometric

damper _________

E. Obtain drafting reading; adjust barometric ____________

Oil Tank Data:

A. Installed in basement _____________

B. Outside ___________

C. Buried/Depth:_________________

D. Size: __________ gallons

E. Age: ________________________

F. Date of last cleaning: ___________________

Oil Lines:

A. Size: 3/8" ________ 1/2" _______ Other _______

B. Single pipe _________ Two pipe ________

C. Distance from tank __________ Lift_________

D. Filter type _____________ Inspect ______ Change _____

E. Pressure test ___________

F. Recheck all fittings for tightness ___________

Thermostat

A. Type: Heating ________ Cooling _______

B. Anticipator set ________

C. Wires: New __________ Old ___________

Air Filter

A. Type: Permanent ______ Disposable ______

B. Installed _____________

C. Size: ________________

A. Close disconnect switch ___________

B. Set thermostat to call for heat ___________

C. Bleed air from lines and pump; run for 20 seconds

after bubble disappears _________

D. Install vacuum gauge; check pump vacuum __________

E. Install pressure 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 CO2: 1st ______________ 2nd ______________ 3rd ____________

I. Check draft overfire _________ Breech _________

J. Air shutter setting ____________ Locked _________

K. Measure static pressure in duct system

Static pressure on supply side ___________

Static pressure on return side ___________

Static pressure drop __________

L. Temperature rise after steady state conditions have

been achieved: Supply side _______ Return side ______

M. Block off return air (limit control checkout); burner

should shut down in 2 or 3 minutes ___________

Installation DataStart-Up Procedure

Owner Record

Installed By: _____________________________________

Dealer _______________________________________

Address _______________________________________

_______________________________________

Telephone # _____________________________________

License # ________________________________________

Customer Name________________________________________________________________________________

Address ______________________________________________________________________________________

City __________________________________________State ________________ Zip Code__________________

Furnace Model # ____________________________________________________ Serial # ___________________

Input Rate__________________________________________________________ Nozzle Used_______________

New Construction ___________________________________________________ Replacement ______________

Date of Installation _____________________________

These checks or tests are required for all oil units.

1900 Wellworth Ave.

Jackson, MI 49203

www.marsdelivers.com

www.heatcontroller.com

Installation and Operation Manual - ODF, ODR, OUF, OLF & OLR Series

Clearances

A minimum of 24" is recommended in front of the furnace

for servicing the burner on all models.

See Table 2 on page 4 for a complete listing of the minimum

clearances required for basement type and upflow

installations. See Figure 2 on page 5 for the minimum

clearances required for horizontal installations and Figure 3

on page 5 for the minimum clearances required for

counterflow installations. When accessibility clearances

are greater than fire protection clearances, the

accessibility clearances take precedence.

In utility rooms or similar installations, the door or access

opening should be large enough to permit replacement of

the furnace, or another appliance such as a water heater,

without disturbing any other equipment.

Read all instructions before starting work so installation will

conform to Underwriter’s Laboratories or Canadian

Standards Association requirements. The furnace must be

level when placed on its foundation (upflow, counterflow, and

basement models) or in its suspended position (horizontal

models). Using a carpenter’s level, check the furnace in at

least two directions. The weight must be distributed evenly

before the duct work is attached.

These instructions must be placed on or near the

furnace in a conspicuous place.

Inspection of Shipment

This 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.

Location

Locate the furnace as centrally as possible so that all warm

pipes to the various rooms are nearly the same length. This

allows each room to receive an equal and proper amount of

heat. This may vary with each particular installation. Position

the furnace so the pipe connection to the chimney will be of

minimum distance and have a minimum of fittings.

INSTALLATION

In any installation where damage from oil may occur, a

drain pan must be installed. The drain pan must be

large enough size to completely prevent any potential

oil damage. The drain pan piping must be sized to drain

the oil pump capacity and the piping must be routed to

drain the oil back to the oil tank.

WARNING

OUF, OLF ODF

* A passage, suitable for a large

person, shall be provided

between the furnace and

chimney for inspection or

replacement of the ue

connector when necessary.

A clearance of 24” shall be

allowed at the rear and on one

side of the furnace for service

and cleaning of the blower.

** The minimum clearance

shown to the ue pipe may

be reducted by using spectial

protection permitted by local

building codes and National

Fire Association Standards and

CSA 139.

Installation and Operation Manual - ODF, ODR, OUF, OLF & OLR Series

Figure 1

Horizontal Installation

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521-48

eu l Ft no r F

691-75

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A poT "1 "4

Bt c uD "1 "6

Csed i S "1 "6

Dmo t t o B "1 "4

Er a eR "1 " 42

Ft no r F " 42 " 42

Geu l F "7 "9

Supply Return

Front View

Top View

Non-Suspended Horizontal Installation

To support the furnace from below, set the furnace on non-

combustible material suitable to support the weight of the unit.

Using a carpenter’s level, check furnace in at least two

directions. To make adjustments, use shims of non-

combustible material. Seven inches minimum clearance

between the bottom of the flue pipe and combustible material

is required. Installation on a combustible floor requires a 1"

clearance from the floor for units with a front flue and a 4"

clearance from the floor for units with a rear flue.

Horizontal Installation Reversing the Air Flow

This furnace is assembled 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

the upright position.

3. Remove the screws holding the limit control in place.

Relocate the limit control to the top side of the front panel

using the knockout hole provided.

Counterflow Installation

This furnace is assembled to discharge warm air out the left

side (when viewed facing the burner side of the furnace). To

convert to counterflow:

1. Rotate the furnace so the return is on top and the supply

is on bottom.

2. Remove the oil burner and the screws securing the

burner mounting plate. Rotate the burner mounting plate

90° clockwise and reattach the screws into the

heat exchanger. Remount the burner.

3. Refer to Figure 2 for minimum clearances required.

When installing a counterflow unit on combustible

flooring, a combustible floor base must be used. See

Figure 3 on page 6 for more information on using a

combustible floor base kit.

Installation and Operation Manual - ODF, ODR, OUF, OLF & OLR Series

It is very important that the furnace be exactly level since a

level unit is necessary for proper fitting of parts. Using a

carpenter’s level, check the furnace in at least two directions.

If the furnace is not level, place fireproof wedges or shims

between the low side of the furnace and the floor and check

again with the level. The weight of the unit must be distributed

evenly on all four corners.

Air Conditioning

Figure 2

*The minimum clearance shown to the flue pipe may be

reduced by using special protection permitted by local building

codes and National Fire Protection Association Standards

and CSA 139.

A minimum of 24" must be provided in the front of the furnace

for servicing the burner and filter. A passage suitable for a large

person shall be provided between the furnace and chimney for

inspection or replacement of the flue connector when necessary.

Counterflow

(Closet Installation)

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Ased i S "1

BpoTmune l Pn r u t eR 0

Ced i Smune l Py l ppuS "1

Ded i Smune l Pn r u t eR 0

mo t t oBmune l Py l ppuS

Ft no r F " 61

Gr a eR "1

Heu l F * "1

JpoT 0

Figure 3

Combustible Floor Installation –

Counterflow Units

Burner

Warm Air Plenum Joist

Slab Flooring

(12" minimum)

Cold Air

Duct

Blower

Comparment

Combustible

Floor Base

Sub-base

Insulation

Kits are also available for counterflow applications where a

vestibule cover is needed for safety reasons.

Vestibule cover kits:

Kit for 57/72 & 84/95 counterflow models – AVEST547-1

Kit for 112/125 counterflow models – AVEST548-1

When an air conditioning unit is used in conjunction with

the furnace, the evaporator coil must be installed in the

discharge (supply) air. Do not install an evaporator coil

in the return air; excessive condensation will occur within

the furnace.

WARNING

Installation and Operation Manual - ODF, ODR, OUF, OLF & OLR Series

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

Installation and Operation Manual - ODF, ODR, OUF, OLF & OLR Series

2. The flue pipe should be as short as possible to do the

job.

3. The internal diameter of the flue pipe or vent connector

shall equal the outlet diameter of the flue opening of the

appliance. If the flue vent collar is larger or smaller than

the flue pipe, a gradual transition piece shall be used

and the system shall be tested to ensure that adequate

draft is provided.

4. Single wall flue pipe should not run outside or through

any unconditioned space.

5. Chimney flue shall extend at least 3’ above the highest

point at which the chimney comes in contact with the

roof and not less than 2’ above the highest roof surface

or structure within 10’ of the chimney on a horizontal

plane perpendicular to the chimney. Not more than 4”

of chimney flue above the chimney cap shall be

considered in computing this height.

6. The flue pipe must not pass through a floor or ceiling.

Clearances to single wall flue pipe should be no less

than specified in the Clearances section beginning on

page 3.

7. The flue pipe may pass through a wall where provisions

have been made for a thimble as specified in the

Standards of the National Board of Fire Underwriters

(see Figure 5).

8. The flue pipe should slope upward toward the chimney

on a horizontal run of at least 1/4” per foot 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 with a lining material

acceptable to the authority having jurisdiction.

11. When two or more appliances vent into a common flue,

the area of the common flue should not be less than the

area of the largest flue or vent connection plus 50% of

the areas of the additional vents or flue connections.

The chimney must be able to sufficiently vent all

appliances operating at the same time.

12. The flue pipe shall not be connected to a chimney

flue serving a solid fuel appliance or any mechanical

draft system.

13. All unused chimney openings should be closed.

14. All vent pipe run through unconditioned areas or outside

shall be constructed of factory-built chimney sections

(see Figure 6).

15. Where condensation of flue gases is apparent, the vent

shall be constructed to prevent the condensation from

entering the flue transition box opening. Provisions shall

be made to drain off the condensate (see Figure 6).

Figure 5

Wall Thimble

Factory-Built Chimney

Figure 6

Front Fllue

Rear Flue

* Barometric control may be installed in either the vertical or

horizontal section of the flue pipe within 18” of the flue outlet of

the furnace.

Installation and Operation Manual - ODF, ODR, OUF, OLF & OLR Series

16. Vent connectors serving this appliance shall not be

connected into any portion of a mechanical draft system

operating under positive pressure.

17. Keep the area around the vent terminal free of snow,

ice, and debris.

Horizontal Venting

The design of this furnace has been approved for horizontal

venting with the following mechanical vent systems:

Tjernlund (sideshot) - Models SS1, SSC, SS2*

Field Control - Model SWG-5S with CK63 Control Kit

Vent systems are available through the local distributor.

Refer to the manufacturer’s installation instructions for proper

installation procedures and service parts information.

* SS2 Vent System is not approved for 196 oil furnaces

Barometric draft control must be used in the horizontal

venting (sidewall) system. It must be located within 18” of

the furnace flue outlet (see Figure 8).

Do not common vent with any other appliance when using

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.

Removal of Unit from Common Venting System

When an existing furnace is removed from a common

venting system service other appliances, the venting system

is likely to be too large to properly vent the remaining attached

appliances. The following test should be conducted with

each appliance while the other appliances connected to the

common venting system are not in operation.

Figure 7

* Barometric control may be installed in either the vertical

or horizontal section of the flue pipe within 18” of the flue

outlet of the furnace.

Rear Flue

Front Flue

Masonry Chimney

Figure 8

Masonry Chimney

Front Flue

Rear Flue

* Barometric control may be installed in the horizontal

venting system and located within 18” of the flue outlet of

the furnace.

Installation and Operation Manual - ODF, ODR, OUF, OLF & OLR Series

1. Seal any unused openings in the common venting

system.

2. Visually inspect the venting system for proper size and

horizontal pitch and determine there is no blockage or

restriction, leakage, corrosion, or other deficiencies

which could cause an unsafe condition.

3. Insofar as is practical, close all building doors and windows

between the space in which the appliances remaining

connected to the common venting system are located and

other spaces in the building. Turn on clothes dryers and any

appliance not connected to the common venting system. Turn

on exhaust fans, such as range hoods and bathroom

exhausts, so they will operate at maximum speed. Do not

operate a summer exhaust fan. Close fireplace dampers.

4. Following the lighting instructions, place the unit being

inspected in operation. Adjust the thermostat so the

appliance will operate continuously.

5. Test for spillage at the draft control relief opening after 5

minutes of main burner operation. Use the flame of a

match or candle.

6. After it has been determined that each appliance remaining

connected to the common venting system properly vents

when tested as outlined above, return doors, windows,

exhaust fans, fireplace dampers, and any other fuel

burning appliance to their previous condition of use.

7. If improper venting is observed during any of the above

tests, the common venting system must be corrected. See

National Fuel Gas Code, ANSI Z223.1 (latest edition)

or CAN/CGA B149.1 & .2 Installation Codes to correct

improper operation of common venting system.

Smoke Pipe and Draft Control

Connect the furnace vent to the chimney 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 installed in the chimney above the smoke pipe (see Figure

9).

Supply and Return Air Plenum

Secure return air plenum to unit using sheet metal screws.

Follow these procedures when installing supply air plenum:

1. Use sealing strips of fiberglass.

2. Attach the plenum to the furnace or evaporator cabinet

with sheet metal screws.

3. Both supply and return air plenums shall be square and at

least 18” long. They should be the same dimension as the

furnace opening.

4. Install supply and return air ducts as desired.

Oil Supply and Oil Filter Connection

Continuous lengths of heavy wall copper tubing or steel pipe

are recommended and should be installed under the floor or

near walls to protect from damage. Do not run lines on floor

joists or other reverberating surfaces. Always use flare fittings

located in accessible places.

Install a generous capacity oil filter inside building between

the fuel shutoff valve and burner. Locate filter and valve close

to burner for easy servicing. An oil filter is required for all

models. A 100-micron filter is recommended.

Combustion Chamber

The combustion chamber is installed in the furnace at the

factory. Read the instruction plate on the front of the unit

concerning proper care of the chamber.

This combustion chamber is made of preformed ceramic

fiber material. Use extreme care when installing the oil

burner so that the chamber is not damaged around the burner

tube.

Figure 9

Draft Control Installation

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