Thermo Products Furnace OC2 56 User Manual

OIL FIRED FURNACE

INSTALLATION AND OPERATION MANUAL

WITH USERS INFORMATION SECTION

MODELS:

OC2-56

OC5-85

OL2-56

OL5-85

OH2-56

OH3-72

OL11-105

OL16-125

OL20-151

OL33-200

OL37-250

OL39-320

OH5-85

OH11-105

OH16-125

OT5-85

OT11-105

OT16-125

? WARNING: IF THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A FIRE

OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE.

DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF

THIS OR ANY OTHER APPLIANCE.

? WARNING: 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.

PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION, INITIAL FIRING, AND BEFORE

PERFORMING ANY SERVICE OR MAINTENANCE. THESE INSTRUCTIONS MUST BE LEFT WITH THE

USER AND SHOULD BE RETAINED FOR FUTURE REFERENCE BY QUALIFIED SERVICE PERSONNEL.

THERMO PRODUCTS, LLC.

PO BOX 217

NORTH JUDSON, IN 46366

PHONE: (574) 896-2133

MADE IN USA

MO-100G

ECN 4385-MA

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All installations and services must be performed by qualified service personnel.

This page contains reproductions of the various instruction and warning labels placed on

the Thermo Pride Oil Furnaces. Please read and comply with the contents of these labels.

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TABLE OF CONTENTS

SECTION

BEGINNING PAGE

I. SAFETY SECTION

II. GENERAL INSTRUCTIONS

A. DRAFT REGULATORS

B. DUCT WORK/AIR CONDITIONING

C. FILTERS MOUNTED EXTERNAL TO FURNACE

D. FAN AND LIMIT POSITION AND LOCATION

E. BURNER INSTALLATION

F. HORIZONTAL FURNACE POSITIONS

G. EXTERNAL WIRE HARNESS LOCATIONS

H. BURNER SPECIFICATIONS AND APPLICATIONS

I. HEAT EXCHANGER CLEANING INSTRUCTIONS

III. USERS INFORMATION SECTION

A. OIL SUPPLY

B. COMBUSTION AIR SUPPLY

C. INSPECTION AREAS

D. STARTING THE BURNER

E. FILTER CLEANING AND LOCATIONS

APPENDIX – A

APPENDIX – B

REPLACEMENT PARTS LIST

WIRING DIAGRAMS

iii

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II. GENERAL INSTRUCTIONS - READ BEFORE START OF INSTALLATION

1. The heating output capacity of the furnace proposed for installation should be based on a heat loss calculation

made according to the manuals provided by the Air Conditioning Contractors of America (ACCA) or the American

Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE).

2. All local codes and/or regulations take precedence over the instructions in this manual and should be followed

accordingly. In the absence of local codes, installation must conform with these instructions and regulations of the

National Fire Protection Association, and to the provisions of the National Electrical Code (ANSI/NFPA 70-1999 or

latest edition).

3. The installed furnace must be level and positioned in a central location with respect to outlet registers. It should be

located near the chimney to minimize any horizontal run of flue pipe, which may be required.

4. A furnace installed in a residential garage must be installed so the burner and ignition source are located higher

than 18 inches above the floor, unless the required combustion air is taken from the exterior of the garage. Also, the

furnace must be located or protected to avoid physical damage by vehicles.

?WARNING: This furnace is not to be used as a construction heater.

5. Listed below are definitions of "COMBUSTIBLE MATERIAL" and "NON-COMBUSTIBLE MATERIAL."

COMBUSTIBLE MATERIAL:

Material made of or surfaced with wood, compressed paper, plant fibers, plastics, or other material that will ignite

and burn, whether flame resistant or not.

NON-COMBUSTIBLE MATERIAL:

Material that is not capable of being ignited and burned. Such materials consist entirely of, or a combination of,

steel, iron, brick, tile, concrete, slate, or glass.

MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS

TOP &

MODEL

NO.¹

FROM SIDES

OF FURNACE

FROM THE

FLUE/VENT

TYPE OF UNIT

LOWBOYS

FRONT SIDES OF

PLENUM

REAR

OL2

OL5,11,16

OL20

OL33,37,39

OH3,11

OH5

1”

2”

24”

Note³

4”

1”

2”

1”

4”

6”

18”

9”

6”

9”

6”

1”

HIGHBOYS

OH16

OH2

OC2

OC5

COUNTERFLOWS

4”

9”

MODEL

NO.¹

FRONT TOP

REAR

BOTTOM

FROM THE

FLUE/VENT

ANY SIDE

TYPE OF UNIT

PLENUM

1”

OT5

OT11,16

24”

1”

4”

9”

HORIZONTALS²

1”

Notes:

¹The above are abbreviated model numbers.

²Horizontal units are not approved for attic installation.

³OH2 front clearance for 6” for Closet, 18” for Alcove.

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The minimum clearances listed in the preceding table are for fire protection. Clearance for servicing the front of the

furnace and the rear of the lowboy models should be at least 24 inches. A clearance of 24 inches is recommended

for passage to all points on the furnace requiring service access.

The OH2-3-5-11-16 furnaces may be installed on combustible flooring. The OL2-5-11-16-20-33-37-39 and OC2-5

furnaces are to be installed on non-combustible flooring only. A non-combustible floor base is available for the

counterflow models OC2-5, which then allows these models to be adapted for installation on combustible flooring

(use non-combustible floor base Model No.125 for OC5, Model No 56 for OC2).

NOTE: The OH2 furnace is approved for closet installation. If the OH2 is installed in a closet, it requires two

openings in the closet door for combustion air, each having a minimum area of 162 sq. inches. This free area for the

OH2 intentionally exceeds the recommended minimum free area of 2 square inches per 1000 BTUH of input rate.

NOTE: When power venting a Thermo Pride oil fired furnace with a power venting system other than the system

supplied by Thermo Pride, a fiber chamber and an isolated combustion air kit (PVB or Beckett boot) is to be used

with the other manufacturers power venting system.

NOTE: On the front flue, lowboy, all highboy or counterflow models, it is possible to rotate the flue elbow (which is

factory installed for vertical discharge) 90° counterclockwise from the vertical position to adapt to various venting

systems. (See following page for details)

? CAUTION MUST BE TAKEN NOT TO EXCEED 90° ROTATION (OF THE FLUE

ELBOW) COUNTERCLOCKWISE OR RIGHT FROM THE VERTICAL POSITION.

ROTATION OF FRONT FLUE ELBOW

When an installation requires that the flue exit out the left hand side casing on a front flue unit, remove screw

securing the 90 deg. elbow and rotate it 90° counterclockwise. Then, by following dimensions in Table 1, locate the

center point for the exit of the flue for the particular size furnace. Once the center has been located, use a scribe to

mark the hole size, listed in the chart, which corresponds with the furnace being used. Cut hole out and extend flue

through side casing.

A trim collar may be ordered from Thermo Products to hide the gap around the flue pipe. This trim collar, however,

is not required for operation.

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NOTE: ROTATION OF FLUE PIPE IS ONLY ALLOWED FOR LEFT HAND SIDE VENTING

APPLICATIONS.

TABLE 1: Suggested sizes and positions of flue pipe opening on left hand side of casing.

TRIM COLLAR/

UNIT

DIA. HOLE

“X” DIM.

“Y” DIM.

FLUE DIA.

GASKET PART #

OC2

OC5

OH2

OH3

5-1/2”

6-1/2”

5-1/2”

6-1/2”

7-1/2”

5-1/2”

6-1/2”

7-1/2”

3-5/8”

4-3/4”

3/5/8”

4-9/16”

4-3/4”

4-5/16”

3-5/8”

4-5/8”

4-1/2”

28-3/8”

31-7/16”

28-3/8”

32-3/16”

33-1/16”

35-1/4”

41-3/8”

28-5/16”

34-15/16”

37-5/8”

39-1/8”

43-1/4”

5”

6”

5”

6”

7”

5”

6”

7”

14121/330073

14131/330005

14121/330073

14131/330005

14132/330006

14121/330073

14131/330005

14132/330006

OH5

OH11

OH16

OL2*

OL5*

OL11*

OL16*

OL20*

FRONT FLUE MODELS ONLY

“X” DIMENSION IS MEASURED FROM SEPARATOR PANEL.

“Y” DIMENSION IS MEASURED FROM THE BLOWER PAN ON “H” MODELS AND FROM THE BASE ON

“L” AND “C” MODELS.

Fig 1: Recommended location for drilling hole to connect

vent pipe to the furnace through the left hand side casing.

A. DRAFT REGULATORS:

A draft regulator is supplied with the furnace and should be installed according to the regulator manufacturers

recommendations. With the burner operating, use a draft gauge to adjust the regulator to the proper setting. (refer to

the instructions enclosed with draft regulator to adjust to the proper setting). When the burner air supply and draft are

properly adjusted, the overfire draft should be a negative (-).01" to (-).02" WC, as measured at the 5/16" overfire air

tap (See Fig. T). This tap is provided in the upper burner mounting plate. To measure the flue draft, punch a small

hole in the vent connector pipe as close to the furnace as possible and always before the draft regulator.

B. DUCT WORK/AIR CONDITIONING:

If the furnace is used in connection with summer air conditioning (cooling), the furnace should be installed parallel

with or on the upstream side of the evaporator coil to avoid condensation in the furnace heat exchanger. If the

cooling unit is installed with a parallel flow arrangement, dampers or other means used to control flow of air should

be provided to prevent chilled air from entering the furnace. If such a damper is manually operated, it must be

equipped with a means to prevent operation of either unit, unless the damper is in the full heat or cool position.

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The duct system should again follow the current design standard of Air Conditioning Contractors of America

(ACCA) or ASHRAE Fundamentals volume.

The most common location for the A-shaped coil (A style) is shown in Fig. 2.

Fig 2: Acceptable locations for the air conditioner evaporator coil.

NOTICE: The minimum coil pan clearance for a sectional or drum type heat exchanger is three inches unless

specified otherwise by the individual coil manufacturer.

A slab coil (H-style) is available for the horizontal air flow application on the OT5-11-16 furnaces refer to Fig. 3.

Fig. 3: An acceptable location for the air conditioner evaporator coil when used with a horizontal furnace.

To obtain proper airflow with an air conditioning coil installed on a belt drive unit, the motor and/or blower pulley

may need to be changed. On a direct drive unit, the blower motor speed may need to be changed depending upon the

size of the air conditioning system installed and the airflow resistance of the duct system.

NOTE: The horizontal units have direct drive blowers and no pulley or motor change is required.

C. FILTERS MOUNTED EXTERNAL TO THE FURNACE:

The filters of the OC2-5 mount in the return air plenum on the top opening on the top of the furnace. (For

installation detail, see figure 4).

Fig. 4: Air filter mounting location for the OC2-5 furnace.

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On highboy furnaces, it is necessary to cut the return air opening in the side or rear casing, depending upon the

needs of the specific installation.

The filter rack provided with the furnace, refer to Fig. 5, will serve as a template to scribe a mark for the return air

opening on the casing. Place the filter rack on the casing one inch up from the bottom of the furnace and centered

from side to side. Place the securing flange against the casing when locating the return air opening.

Fig. 5: A typical filter rack and dimensions for the highboy furnaces.

PLEASE NOTE: While scribing the return air opening, the filter rack can be held in position by tape or similar

temporary means.

Position the open end of the filter rack so as to provide access for filter replacement. Once the filter rack is

positioned correctly, scribe a line along the inside of the securing flange on three of the sides. To scribe a line on the

fourth side (the open end), use the open end support as a guide.

Remove the filter rack and cut the return air opening in the casing. Now the filter rack can be anchored to the furnace

with screws or pop-rivets through the securing flange of the filter rack.

?WARNING: When cutting openings in the casing DO NOT CUT ANY SUPPORTING

CLIPS OR ANGLES. Cut as close to the scribed line as possible, but do not cut the base clip or

blower pan support angle. (See Fig. 6).

Fig. 6: Cutaway view of fan section of a typical highboy furnace.

Connect the return air plenum to the filter rack and slide the filter into place. Dimensions for adapting the return air

plenum to the filter rack are provided on the bottom of the previous page.

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D. FAN AND LIMIT POSITION AND LOCATION

?WARNING: The predetermined fan and limit locations on all of the Thermo Pride oil fired

furnaces have been tested and approved by Thermo Products, LLC. in conjunction with

Underwriters Laboratories, Inc. Any attempt to relocate these safety controls or replace these

safety controls with a control that is not approved, or is incompatible, may result in personal

injury, substantial property damage or death.

The units listed in the table below must have the fan and limit control installed at the time of unit installation. A

locating bracket is provided with each of the units below.

TABLE 2: Installation location of

the fan and limit control for each

furnace

Fig. 7: Fan and limit location for lowboys, horizontal units and highboys.

FAN & LIMIT LOCATION FOR HORIZONTAL UNITS WITH AIR CONDITIONING COIL:

The fan & limit control should be mounted between the H-coil cabinet and furnace. For distances from top of plenum

and furnace, see Fig. 7. IMPORTANT: Do not try to mount fan/limit in H-coil cabinet.

NOTE: The OL2, OC2 and OH2 only, come standard with an oil filter packaged with the furnace. This filter has the

capacity of filtering down to a 10 micron particle. This is to assure the small diameter burner nozzles in the low

heating capacity furnaces are installed with a fine filter to help prevent nozzle clogging.

E. BURNER INSTALLATION:

NOTICE: Remove all cardboard packing from around chamber before installing burner.

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The oil burner will mount on three stud mounting bolts on the lower mounting plate covering the opening in the front

of the heat exchanger. The end of the burner tube should be inserted no further than 1/4 inch back from the inside

surface of the combustion chamber. A distance further than 1/4 inch back from the inside chamber wall may cause

impingement and sooting.

NOTE: OVERFIRE AIR TAP MAY BE LOCATED ON EITHER SIDE OF FLAME INSPECTION

COVER. (See Fig. 8).

TWO PIECE MOUNTING PLATE

Fig. 8: Typical location of the overfire air tap

Fig. 9: (Top view) Burner insertion illustration

When mounting the burner, the upper mounting plate (Fig. 8) must be removed to provide access to the area in front

of the combustion chamber. The combustion chamber can then be moved forward or backward slightly to allow for

adjustment in positioning the burner tube. A fiber insulating sleeve or amulet is provided on the burner tube of

specific Thermo Pride burners.(see Fig. 10). See Thermo Pride burner application chart for type of insulator. Do not

allow the burner tube or end cone to physically touch or protrude into the chamber, as excess heat transfer could

result in destruction of the tube, end cone or both. The burner tube/end cone is properly positioned, when the end is

¼ inch back from the inside surface of the combustion chamber wall.

NOTE: The OL2, OC2 and OH2-56 furnace models have two chamber positioning clips on the pouch bottom to

prevent the chamber from being pulled forward too close to the mounting plate and burner. If the chamber is pulled

back against these clips the insertion depth should be correct. The loose-fill insulation that is included in a brown

paper bag should be lightly placed around the burner tube between the front of the combustion chamber and the

burner mounting plate. (DO NOT PACK THE INSULATION DOWN). The loose-fill insulation should be placed

in such a fashion that the surface of the insulation is sloped from the top of the combustion chamber to the top of the

lower mounting plate. The purpose of the loose insulation is to help protect the burner tube, mounting plates and

vestibule area from excessive temperatures.

On the horizontal units, the loose-fill insulation will fall down around the side of the chamber (the chamber is on its

side in horizontal units). This presents no problem to the unit, as the amount of insulation under the side will be

minimal, but take care not to allow the insulation to fall into the open end of the chamber where it may burn and

blow around, possibly lodging in the burner.

NOTE: Do not place loose insulation around chamber sides and back except for the larger units (Models OL33, 37

and 39) where the loose insulation is to be used around rear of chamber to ensure chamber stability. See larger

unit assembly instructions for further details. (See Fig. 9).

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Fig. 10: (Side view) Burner insertion illustration

F. HORIZONTAL FURNACE POSITIONS:

The horizontal furnace may be turned end for end, or rotated, making the top into the bottom, as shown in Fig. 11.

Fig. 11: A horizontal furnace rotated 180° (or flipped end for end) to reverse airflow direction

After the furnace has been positioned, the bottom burner mounting stud must be broken off before mounting the

burner (See Fig. 12). Also, the fan & limit and its mounting bracket must be relocated once the unit is in position.

(See Fig. 7).

Fig. 12: Required modification to burner mounting studs before burner installation

G. EXTERNAL WIRE HARNESS LOCATIONS FOR OL33, 37

Fig. 13: External electrical wiring in conduit on large furnace models

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The OL33, 37 and 39 furnaces have an external wire harness that mounts in pre-punched holes in the side casings

(See Fig. 13).

A Horizontal furnace is shown below with external wire harness and fan speed terminal strip (blower access panel

removed). (See Fig. 14).

Fig. 14: The wiring system of a typical horizontal furnace

H. BURNER SPECIFICATIONS AND APPLICATIONS

THERMO PRIDE BURNER APPLICATIONS

FURNACE

MODEL

THERMO

PRIDE’S

BURNER

SPEC NO.

BECKETT

BURNER

MODEL &

TUBE

HEAD STATIC

PLATE

MAXIMUM STANDARD

OIL

PUMP

PRESSURE

(PSIG)

INS

NOZZLE

SIZE**

NOZZLE

SIZE

LENGTH

OC2-56

OC5-85

TP-1401

TP-101

AFG-3-5/8

3-3/8

2-3/4

0.55X70H

0.75X80H

0.50X70H

0.75X80H

120

100

AF 7-3/4

OH2-56

OH3-72

OH5-85

OH11-105

OH16-125

TP-1401

TP-101

TP-102

AFG 3-5/8

AF 7-3/4

3-3/8

2-3/4

0.55X70H

0.65X80H

0.75X80H

0.90X80H

1.25X80H

0.50X70H

0.65X80H

0.75X80H

0.90X80H

1.10X80H

120

100

OL2-56

OL5-85

TP-1401

TP-101

TP-102

TP-1003

TP-104

TP-105

TP-106

AFG 3-5/8

AF 7-3/4

AF 5-3/4

3-3/8

2-3/4

SPIDER

0.55X70H

0.75X80H

0.90X80H

1.25X80H

1.35X80S

2.00X80S

2.50X80S

3.00X80S

0.50X70H

0.75X80H

0.90X80H

1.10X80H

1.35X80S

1.75X80S

2.25X80S

2.75X80S

120

100

OL11-105

OL16-125

OL20-151

OL33-200

OL37-250

OL39-320

F12

F22

F31

OT5-85

OT11-105

OT16-125

TP-101

TP-102

AF 7-3/4

2-3/4

0.75X80H

0.90X80H

1.25X80H

0.75X80H

0.90X80H

1.10X80H

100

* INSULATOR S = SLEEVE OR N = NONE

** MAXIMUM NOZZLE SIZE FOR UL LISTING OF FURNACE. THE NOZZLE SIZE GIVES THE

NOMINAL FLOWRATE, IN GPH, FOLLOWED BY THE SPRAY ANGLE, IN DEGREE’S, AND THE

SPRAY PATTERN, EITHER “H” FOR HOLLOW CONE OR “S” FOR SOLID CONE. FOR EXAMPLE, A

NOZZLE RATED AT 0.65 GPH @ 100 PSIG THAT PROVIDES AN 80° SPRAY ANGLE AND A

HOLLOW SPRAY PATTERN WOULD BE ABBREVIATED IN THE TABLE AS “0.65 X 80H”.

For more specific burner information, contact Thermo Products, LLC. P.O. Box 217, North Judson, IN 46366.

Phone 574-896-2133.

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STANDARD BURNER NOZZLES: The OL2, OH2, OC2 and OC1, along with the OL33, OL37 and OL39 have

the nozzles already installed in the burners. The balance of the oil units has the nozzles shipped as loose items with

the furnace. Below is a chart showing the heating capacity of the furnace for each approved nozzle size.

OIL NOZZLE CAPACITY CHART

EQUIVALENT

HEAT

EFFECTIVE

HEATING

INPUT RATE*

(BTU/HR)

CAPACITY**

(BTU/HR)

UNITS

NOZZLE SIZE

(GPH)

__________________________________________________________________________________________

OH2,OL2,OC2

.50

.55

70,000

77,000

56,000

61,600

OH3

.65

.75

.85

91,000

106,250

119,000

72,800

85,000

95,200

OL,OH,OC,OT5

OC5

OL, OT11

.85

.90

119,000

126,000

95,200

100,800

OH11

1.00

140,000

112,000

OH,OL,OT16

1.10

1.20

1.25

154,000

168,000

175,000

123,200

134,400

140,000

OL20

OL33

1.35

189.000

151,200

1.75

2.00

245,000

280,000

196,000

224,000

OL37

OL39

2.25

2.50

315,000

350,000

252,000

280,000

2.75

3.00

385,000

420,000

308,000

336,000

All rates shown above achieved with 100 PSIG pump pressure (except for OH2, OL2 and OC2, which require 120

PSIG).

* Based on #2 domestic heating fuel oil having heating value of 140,000 BTU per gallon.

** Based on thermal efficiency of 80%.

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RIELLO BURNER APPLICATION CHART

The optional F3 and F5 Riello flame retention oil burners have been UL listed (UL File #MP3252) for application on

the following Thermo Pride oil fired furnaces.

MODEL

OC5, OL5,

OH5, OT5

OL11, OH11,

OT11

OL16, OH16,

OT16

OH3

OL20

35750

PART

MTG. PLATE

PART NO.

TOP-25752

BTM-35733

35750

MTG. PLATE

GASKET

PART NO.

330090

330088

**NOZZLE

SIZE

.50-60A

380393

.60-60A*

380394

.75-60A*

380395

.90-60A*

380396

1.10-60A*

380397

NOZZLE

PART NO.

OIL PUMP

PRESSURE

170 PSI

145 PSI

145PSI

145 PSI

150PSI

BURNER

PART NO.

380215

380216

* A refers to hollow pattern nozzle

** NOTE: The reason the Riello burner nozzle sizes are smaller than the standard Thermo Pride burner nozzles is

that pre-set pump pressures are higher, therefore achieving the same firing rate with a smaller nozzle.

For more specific burner information, specifications or service information, reference the training manual enclosed

with each Riello burner or contact:

Riello Corporation of America,

5 Pond Park Road

Hingham, Massachusetts 02043

(617) 749-8292

I. HEAT EXCHANGER CLEANING INSTRUCTIONS:

?WARNING: THE HEAT EXCHANGER MUST BE CLEANED BY A QUALIFIED

SERVICE PERSON.

It is important to inspect and clean the heat exchanger once a year, or as necessary, to remove any build-up of soot.

A layer of soot on the inside of the heat exchanger will act as an insulator and reduce heat transfer, resulting in less

efficiency.

To clean the heat exchanger, first turn off all power to the unit. Next, remove the access panel (see below and

beginning of following page) immediately above the burner (on the horizontal furnace, it will be located to the side

of the burner) to gain entry to the clean-out covers, refer to figure 15. This panel is identified with a label. Remove

clean-out covers, the vent connector pipe to the chimney, the burner, and the burner mounting plates. When

removing the clean-out covers, special care must be taken not to damage the gaskets. Should the gaskets separate,

crack, break, or be unsuitable for reuse, the gasket must be replaced before reattaching the clean-out covers.

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Fig. 15: Typical Heat Exchanger Cleanout Cover Locations.

With access to the inside of the heat exchanger through the burner area, clean-out openings, and vent pipe

connection, it is possible to use a long, flexible wire brush and an industrial type vacuum cleaner to remove any soot

build-up. NOTE: A one inch (outside diameter) vacuum cleaner hose will fit into the radiator.

To vacuum and brush the outer radiator of the heat exchanger, go through the clean-out openings in both directions,

as shown in figure 16, below.

Fig. 16: Recommended method and device for cleaning inside of heat exchanger.

Reassemble the furnace to its original construction. Remount the burner being certain that the air tube is properly

inserted into the chamber opening (see section E). If heavy soot deposits were found in the heat exchanger, this may

indicate the burner is out of adjustment.

III. USERS INFORMATION SECTION

A. OIL SUPPLY: Do not allow the fuel tank to run completely empty. During the summer, keep the tank full to

prevent condensation of moisture on the inside surface of the tank. If the fuel tank runs completely dry, it may be

necessary to purge the lines of trapped air. Contact a qualified technician to bleed the lines and restart the burner.

OIL SUPPLY VALVE: Turn the oil supply valve off if the burner is shut down for an extended period of time.

B. COMBUSTION AIR SUPPLY: The burner requires a generous amount of clean combustion air to operate

safely. Lack of adequate combustion air can result in erratic operation of the burner, noisy combustion, or fuel odors

in the air. NEVER BLOCK THE FURNACE FROM THE SUPPLY OF COMBUSTION AIR. If there is an exhaust

fan, dryer or return air grill in the furnace room, there should be increased concern and additional efforts may be

required to provide adequate combustion oil to the furnace at all times.

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All installations and services must be performed by qualified service personnel.

C. INSPECTION AREAS

VESTIBULE: The furnace vestibule area or burner compartment should be inspected by removing the front door of

the furnace and looking for signs of excessive heat such as discoloration of components materials damage, from rust

or corrosion, soot or carbon build-up.

EXTERIOR OF FURNACE: The furnace exterior should be inspected for signs of excessive heat such as

discoloration of materials and damage from rust or corrosion.

FLUE PIPE, VENT PIPE OR CONNECTOR: The furnace vent pipe should be inspected for signs of rust,

corrosion pitting or holes in pipe, and leakage around seams in pipe, indicated by soot or condensate streaks.

CHIMNEY OR VENTING SYSTEM: The furnace venting system should be inspected for signs of rust, corrosion

pitting or holes, and signs of condensation or moisture leakage from the venting system.

If any of the above symptoms are evident, call a qualified heating contractor for assistance.

?CAUTION: DO NOT ATTEMPT TO MAKE REPAIRS YOURSELF!

?WARNING: The area around the furnace should be kept free and clear of combustible

liquids and material, especially papers and rags.

?WARNING: NEVER burn garbage or refuse in your furnace. Never try to ignite oil by

tossing burning papers or other material into your furnace.

?WARNING: Thermo Pride oil furnaces are designed to burn No. 1 or No. 2 distilate fuel

oil. NEVER USE GASOLINE OR A MIXTURE OF OIL AND GASOLINE.

?CAUTION: DO NOT ATTEMPT TO START THE BURNER WHEN:

1. Excess oil has accumulated,

2. The furnace is full of vapors

3. The combustion chamber is very hot.

IF ONE OR MORE OF THESE CONDITIONS EXIST, CONTACT A QUALIFIED

SERVICE PERSON.

D. STARTING THE BURNER:

1. Turn the main service switch to "OFF" position.

2. Set thermostat substantially above room temperature.

3. Open shut-off valves in oil supply line to burner.

4. Turn service switch to furnace "ON". If burner starts and runs, but stops again on lockout, it may be necessary to

bleed the lines or make burner combustion air adjustments. Contact a qualified service person to adjust and start

burner.

E. FILTER CLEANING AND LOCATION:

The air filters should be inspected each month and cleaned when dirty. Cleaning the air filters frequently may reduce

airborne contaminants from entering the furnace and depositing in the furnace, duct system and home.

?WARNING: To avoid injury from moving parts, hot surfaces, or electrical shock, shut

off the power to the furnace before removing any furnace access doors to service the air

filters.

OL Series (Lowboy)

To clean a dirty filter, first remove the blower compartment door at the rear of the furnace, refer to figure

17. Remove the dirty filter from the filter rack and clean it with a mild soap and water solution. Make sure filter is

thoroughly dry before replacing. Replace the blower compartment door.

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Fig. 17: Location of the air filter and blower compartment access door on the typical lowboy furnace.

OH Series (Highboy)

The filter rack will be located between the return air plenum and the return air opening on the side of the

furnace, refer to figure 18. Slide the dirty filter out, clean it with a mild soap and water solution. Make sure filter is

thoroughly dry before replacing.

Fig. 18: Location of the air filter on the typical highboy furnace.

OC Series (Counterflow)

For removal of the filter, remove front door of furnace. Then, remove blower access panel for access to

filter, refer to figure 19. Clean filter by vacuuming, tap-water rinsing or washing in an ordinary detergent soloution.

After cleaning, replace the completely dry filter mesh side down.

Fig. 19: location of the air filters on a typical counterflow furnace.

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COMBUSTION AND EFFICIENCY TESTING FOR THERMO PRIDE

OIL FIRED CENTRAL FURNACES.

Complete this form for each Thermo Pride furnace installed. Read instruction

manual carefully before making tests. Retain this form with furnace.

CUSTOMER

NAME

ADDRESS

CITY, STATE

BURNER MODEL NO. BLAST TUBE LGTH.

AIR SHUTTER OPENING

HEATING

SYSTEM

INS.

% OF MAX. (EST)

CONDITION

MATERIAL FURNACE MODEL

COMBUSTION CHAMBER

TYPE OF VENTING SYSTEM

MASONRY

CHIMNEY

METAL

SIDEWALL

POWER VENTER

MASONRY

CHIMNEY

W/INDUCER

CHIMNEY

MASONRY CHIMNEY

W/METAL LINER

CHIMNEY

W/INDUCER

FUEL LINE FILTER

DRAFT CONTROL

FURNACE SERIAL NUMBER

INITIAL

INSTALLATION

COMBUSTION

TESTS

SERVICE SERVICE SERVICE

CO2 in stack pipe

Draft Over-fire

(Operate burner

at least 10

Draft in stack pipe

Smoke number

minutes before

starting tests.)

Gross stack temp.

Furnace room temp.

Net stack temp.

(Gross stack minus

furnace room temp.)

Efficiency

Nozzle size and spray

Oil pump pressure

Operation of Controls

Burner Safety Controls

Check for oil leaks

Tests taken by

Date

NOTES:

INSTALLER NAME & ADDRESS

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APPENDIX-A Replacement Parts List