Thermo Pride GMC-85 Manual

THERMO PRODUCTS, LLC.

POST OFFICE BOX 217

NORTH JUDSON, IN 46366

PHONE: (574) 896-2133

MO-422

ECN 4528-MA

MADE IN USA

GAS-FIRED OR OIL-FIRED FURNACE

DOWN FLOW & DIRECT VENT (SEALED COMBUSTION)

MODELS: OMC-70 AND GMC-85

INSTALLATION AND SERVICE MANUAL

For installation in:

1. Manufactured Homes

2. Modular Homes/Buildings

3. Site Construction—Residential (Single Story Dwellings)

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or

any other appliance.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use any phone in your building.

• Immediately call your gas supplier from a neighbor’s phone.

Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the fire department.

: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.

: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, service

agency, or fuel supplier.

: Do not use this appliance if any part has been underwater. Immediately call a qualified service

technician to inspect the appliance and to replace any part of the electrical or control system that has been

underwater.

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.

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

I. SAFETY SECTION

This page and the following two pages contain various warnings and cautions found

throughout this furnace Service and Installation Manual. Please read and comply with the

statements on the cover and the statements below.

: All local codes and ordinances must be followed with regard to the oil tank and oil

lines. All lines must have shut off valves, use a proper pipe joint compound (specified for use

with oil) on all pipe threads, no kinks, no sharp bends, and be properly tested for leaks. Flare

fittings are recommended for tubing.

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

: DO NOT RUN THE OIL PUMP DRY FOR MORE THAN FIVE MINUTES.

: When testing electrical equipment, always follow standard electrical procedures

and precautions.

: The heat exchanger must be cleaned by a qualified service person.

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

materials, especially papers and rags.

: NEVER burn garbage or refuse in your furnace. NEVER try to ignite oil or gas

by tossing burning papers or other material into your furnace.

: Thermo Pride oil furnaces are designed to burn commercial standards of No. 1

and No. 2 fuel oil. NEVER USE GASOLINE OR A MIXTURE OF OIL AND GASOLINE.

: Do not attempt to start the burner when: 1. Excess oil has accumulated 2. The

furnace is full of vapors or 3. The combustion chamber is very hot. If one or more of these

conditions exist, contact a qualified service person.

: If the temperature rise exceeds 100°F, the heat exchanger may fail voiding the

heat exchanger warranty resulting in property damage, personal injury or loss of life.

: Burner adjustments must be confirmed by instrumentation. Failure to use

accurate or calibrated instrumentation to setup the burner may result in reduced efficiency,

sooting and/or the production of hazardous carbon monoxide gas.

: Any attempt to relocate safety controls or replace safety controls with a control

that is not approved or incompatible, may result in personal injury, substantial property

damage or death.

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

: If you do not follow these instructions exactly, a fire or explosion may result

causing personal injury, loss of life or property damage.

: NEVER use gasoline or a mixture of oil and gasoline to start the burner or

furnace.

: HAZARD OF ASPHYXIATION: Negative pressure inside the closet with closet

door closed and the furnace blower operating shall be no more negative than minus 0.05 inch

water column.

: Do not obstruct any return air openings, including the return grille on the

furnace. To do so may cause the furnace to activate the high limit and shut down or it may

cause asphyxiation.

: Because of the potential of odorant fade, a gas leak may not be detected by smell.

If this furnace is installed below grade, contact your gas supplier for a gas detector.

: All gas pipe connections must be leak tested using a strong soap and water

solution (with the gas turned on). Any leaks must be repaired immediately after turning off the

gas supply. A final test for gas leakage must be made after purging the gas line.

: DO NOT wet electronic components during the leak test. Wetting electronic

components may damage circuitry and cause a hazardous situation. Dry moisture from all

leads and terminals if wetting occurs. Wait at least 24 hours for the circuit to fully dry before

energizing the system.

: The furnace and its gas valve must be disconnected from the gas supply during

pressure testing of the gas supply system at pressures in excess of 1/2 PSIG or 13.9 inches

W.G. The furnace can be isolated from the gas supply by closing its manual shut off valve at

test pressures equal to or less than 1/2 PSIG or 13.9 inches W.G.

: Copper and brass tubing and fittings (except tin lined) shall not be used if the gas

contains more than a trace (0.3 grains per 100 cubic ft.) of hydrogen sulfide gas. Check with

your gas supplier.

: All local codes and ordinances take precedence with regard to tank and oil lines.

All lines must have shutoff valves, a good pipe joint compound approved for use with oil on all

pipe threads, no kinks, no sharp bends and be properly tested for leaks. Flare fittings are

recommended for tubing.

: Do not use motor oil or any fuel other than No. 1 or No. 2 fuel oil in this furnace.

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

: If you suspect there is a problem with the furnace, the venting system or any other

related problem, immediately contact a qualified service agency. If a service agency is not

available contact your fuel supplier.

: Personal injury, or property damage, could result from major repair or service of

this furnace by anyone other than a qualified contractor. Only the routine maintenance

described in the user section of this manual should be performed by the user.

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

materials, especially papers and rags.

: Never burn garbage or refuse in your furnace. Never try to ignite oil or gas by

tossing burning papers or other material into your furnace.

: Do not attempt to start the burner when:

1. Excess oil or gas has accumulated.

2. The furnace is full of vapors.

4. The combustion chamber is very hot.

If one or more of these conditions exist, contact a qualified service person.

: Do not block or obstruct air openings on the furnace or air openings

communicating with the area in which the furnace is installed.

: Do not allow the outside air intake to be blocked or obstructed by vegetation, ice,

snow or any other materials.

: Do not use this furnace if any part has been underwater. Immediately call a

qualified service agency to inspect the furnace and to replace any part of the electrical or

control system which has been underwater.

: Should overheating occur or the fuel supply fail to shut off, shut off the manual

fuel supply valve to the furnace before shutting off the electrical supply.

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

This page and the following page contain reproductions of the various warning and

instruction labels placed on the Thermo Pride Oil Furnace. Please read and comply with

the contents of these labels.

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

POWER

SWITCH

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

TABLE OF CONTENTS

SECTION BEGINNINGPAGE

I.SAFETYSECTION 1

II. GENERAL INSTRUCTIONS AND CLEARANCES 7

III. FURNACE SPECIFICATIONS 9

IV.INSTALLATION 11

A.ROOFJACK 11

B. STANDARD CHIMNEY 11

C. FURNACE LOCATION 11

D. BASE INSTALLATION 13

1. Combustible Floor Base Model: 70-BASE 13

2. Cottage Base Model: OMCCOT-BASE 14

E. ALCOVE INSTALLATION 16

F. CLOSET INSTALLATION 16

G. COMBUSTION AIR 17

H.FUELPIPING 20

1. General Gas Piping 20

2. Oil Tank and Piping 21

J.ELECTRICALWIRING 23

1. Electrical Branch Supply Circuit 24

2. Connection of Power Supply Wires 24

3. Connection of Thermostat Wires 24

4. Wiring Diagram 26

K. BURNER INSTALLATION 27

L. BURNER OPERATION AND ADJUSTMENT 28

M. FLUE GAS COMBUSTION ANALYSIS 30

V. DEALER MAINTENANCE 31

A. TROUBLESHOOTING 31

B. CAD CELL CHECKOUT PROCEDURE 37

C. HEAT EXCHANGER CLEANING INSTRUCTIONS 38

D. CLEANING OR REPLACING FLUE PIPES 39

E. EXTENDED SHUTDOWN AND RESTART 40

VI. USERS INFORMATION SECTION 41

A. WARNINGS & CAUTIONS 41

B. COMPONENT LOCATIONS 42

C.INSPECTIONAREAS 42

D. FILTER LOCATION AND CLEANING 43

APPENDIX A - REPLACEMENT PARTS LIST 44

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

II. GENERAL INSTRUCTIONS AND CLEARANCES

NOTE: READ THIS SECTION BEFORE STARTING INSTALLATION

1. The selection of a furnace heating capacity for a proposed 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. The installer shall be familiar with and comply with all codes and regulations applicable to the

installation of these heating appliances and related equipment. In lieu of local codes, the

installation shall be in accordance with the current provisions of one or more of the following

standards.

a. Federal Manufactured Home Constructions & Safety Standard (HUD Total 24, Part 280).

b. American National Standard (ANSI-119.2/NFPA-501C), for all recreational vehicle

installations.

c. American National Standard (ANSI-Z223.1/NFPA-54), for all gas-fired furnaces.

d. American National Standard (ANSI-Z95.1/NFPA-31), for all oil-fired furnaces.

e. American National Standard Electric Code (ANSI-C1/NFPA-70), for all electrical field

wiring.

The oil-fired furnace has been investigated under the UL 307A test standard and the gas-fired

furnace under the UL 307B test standard. Both gas and oil fired units are listed by Underwriters

Laboratories and described as, “For installation as central furnace special type for single story

dwelling.”

: The area around the furnace must be kept free and clear of combustible

materials, especially papers and rags.

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

1. Definitions of "combustible" and "non-combustible" materials as presented in the 1996

version of the National Fuel Gas Code, ANSI Z223.1-1996/NFPA 70-1996, are as follows:

a. Combustible material:

“...materials made of or surfaced with wood, compressed

paper, plant fibers, or other materials that are capable of

being ignited and burned. Such materials shall be

considered combustible even though flameproofed, fire-

retardant treated, or plastered.”

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

b. Non-combustible material:

“...material that is not capable of being ignited and burned;

such as material consisting entirely of, or a combination of,

steel, iron, brick, concrete, slate, asbestos, glass, and plaster.”

This heating appliance must be installed with clearances to combustible material surfaces of not

less than the minimum distances given below. Also, allow ample clearances for servicing the

furnace for easy access to the air filter, blower assembly, burner assembly, controls, and vent

connections.

MODELS OMC/GMC CLOSET ALCOVE

FRONT

BACK

SIDES

ROOF JACK

VENT CONNECTOR

TOP

PLENUM SIDES

TOP AND SIDES OF DUCT

BOTTOM OF DUCT

6”

0”

6”

1”

18”

0”

6”

1”

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

III. FURNACE SPECIFICATIONS

MODEL OMC-70 GMC-85

HEAT INPUT RATE (BTUH) 85,000 85,000

HEATING CAPACITY (BTUH) 71,000 69,700

BURNER NOZZLE (GPH X

ANGLE, HOLLOW CONE) 0.65X80A -------

BURNER ORIFICE-NAT. GAS --------- #17 DMS

BURNER ORIFICE-PROP. GAS --------- #36 DMS

OIL PUMP PRESSURE (PSIG) 100 -------

GAS SUPPLY PRESSURE (IN.W.G.)

MINIMUM REQUIRED

PROPANE --------- 11

NATURAL --------- 4.5

MAXIMUM ALLOWED

PROPANE --------- 13.9

NATURAL --------- 13.9

GAS MANIFOLD PRESSURE (IN. W.G.)

PROPANE --------- 10 + 0.3

NATURAL --------- 3.5 + 0.3

VENT PIPE SIZE (INCHES) 4 4

DESIGN TEMPERATURE RISE (°F) 85 85

SEASONAL EFFICIENCY

(AFUE*, %) 84 82

*AFUE - INCLUDES STEADY STATE THERMAL EFFICIENCY AND OFF CYCLE

LOSSES.

ELECTRICAL RATINGS AND SETTINGS:

ELECTRICAL SUPPLY: 120 VAC / 60HZ / 1 PHASE

MAXIMUM TIME DELAY TYPE FUSE OR HACR BREAKER RATING: 15 AMPS

TOTAL RATED CURRENT (AMPS): 11.3 (OMC), 6.81 (GMC)

NOMINAL HEAT ANTICIPATOR SETTING -- 0.2 mA (OMC), 0.8 mA (GMC)

DIMENSIONS & WEIGHTS:

CABINET: WIDTH - 18 IN., DEPTH - 24 IN., HEIGHT - 57 IN.

NO.70 MOBILE HOME BASE: WIDTH - 18 5/16 IN., DEPTH - 24¼ IN., HEIGHT - 4 IN.

WARM AIR DUCT: WIDTH – 12 IN., DEPTH – 12 IN., HEIGHT - 14 ¼ IN.

COTTAGE BASE: WIDTH – 18 3/16 IN., DEPTH - 24¼ IN., HEIGHT – 14¾ IN.

FILTER QUANTITY & SIZE: (2) @ 17 ¾ IN. x 13 ¾ IN. x 1 IN. EA.

APPROXIMATE SHIPPING WEIGHT: 240 LBS.

PRODUCT LISTED UNDER UL FILE NUMBER -- MP3241

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