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Manual Thermo Products OMC-70

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  • Thermo Products OMC-70 - page 1

    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 installa tion in: 1. Manufactured Homes 2. Modular Homes/Buildings 3. Site Construction— ...

  • Thermo Products OMC-70 - page 2

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 1 I. SAFETY SECTION This page and the following two page s contain various warnings and c autions found througho ut this f urnace Servi ce and Install ation Manu al. Please read and com ply wi th the statements on the cover and th e statements below. : All local c ...

  • Thermo Products OMC-70 - page 3

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 2 : 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 p ...

  • Thermo Products OMC-70 - page 4

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 3 : If you suspect th ere is a problem w ith the fu rnace, the vent ing system or any other related problem, im mediately contact a qualified service agency. If a service agency is not available contact your fuel supplier. : Personal injury, or property damage, co ...

  • Thermo Products OMC-70 - page 5

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 4 This page and the following page contain reproductions of the various warning and instruction labe ls placed on the Ther mo Pr ide Oil Furnac e. Please read and com ply with the contents of these labels . ...

  • Thermo Products OMC-70 - page 6

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 5 POWER SWITCH ...

  • Thermo Products OMC-70 - page 7

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 6 TABLE OF C ONTENTS SECTION B E G I N N I N G P A G E I . S A F E T Y S E C T I O N 1 I I. GENERAL I NSTRUCTIONS AND CL EARANCES 7 III. F U R N A C E S P E C IFIC A T IO N S 9 I V . I N S T A L L A T I O N 1 1 A . R O O F J A C K 1 1 B. STANDARD CHIMNEY 11 C. FUR ...

  • Thermo Products OMC-70 - page 8

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 7 II. GENERAL INSTRUCTIONS AND CLEARANCES NOTE: READ THIS SECTION BEFORE START ING 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 ...

  • Thermo Products OMC-70 - page 9

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 8 b. Non-co mbustible mate rial: “...material that is not capable of being ignited and burned; such as mater ial consisting entir ely of, or a combination of , steel, iron, brick, concrete, slate, asbestos, glass, and plaster.” This heating appliance must be i ...

  • Thermo Products OMC-70 - page 10

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 9 III. FURNACE SP ECIFICATIONS MODEL O M C - 7 0 G M C - 8 5 HEAT I NPUT RATE (BTUH) 85,000 85,000 HEATI NG CAPACITY (BTUH) 71,000 69,700 BURNER NOZZ LE (GPH X ANGLE, HOL LOW CONE) 0.65X80A ------- BURNER ORI FI CE-NAT. GAS --------- #17 DMS BURNER ORI FI CE-PROP. ...

  • Thermo Products OMC-70 - page 11

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 10 BURNER DATA OMC-70 G M C - 8 5 MANUFACTURER: R.W. BECKETT CORP. WAYNE COMBUSTION SYSTEMS MODEL: AF G P265 FEP AI R TUBE L ENGTH (IN.): 3-5/8 3-5/8 HEAD DESIGN: F-3 -------- REFRACTORY TYPE: MHC (FI BER) MHC (FI BER) OI L PUMP PRESSURE (P.S .I .G.) 100 -------- ...

  • Thermo Products OMC-70 - page 12

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 11 IV. INSTALLATION A. ROOF JACK The roof jack assembly and accessories must be listed by a nationally recognized testing agency for the appropriate fuel. The roof jack assembly must be installed according to the vent manufacturer’s i nstructions prior to the fu ...

  • Thermo Products OMC-70 - page 13

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 12 Combustible F loor Base Model: 70-BASE Figure 1A. Cottage Base Model: 01COT-BASE ...

  • Thermo Products OMC-70 - page 14

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 13 Figure 1B. D. BASE INSTAL LATI ON 1. Combustible Floor Base Model: 70-B ASE Referring to Figure 1A, for applications using a combustion air channel and a supply air duct, use the base as a template to mark the floor opening locations. See Fig ure 2 for cutout l ...

  • Thermo Products OMC-70 - page 15

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 14 If the combustion air passageway cannot term inate outside of the skirting or enclosure, a permanent opening with a minimu m of 50 square inches of unobstructe d infiltration (free area) for ve ntilation air mu st be provided f or adequate combustion. This perm ...

  • Thermo Products OMC-70 - page 16

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 15 IMPORTANT : Adequate combustion air m ust be provided under all circumstances. If the underside of the home is skirted or enclosed (e.g. by an enclosed crawlspace), the combustion air intake should exit through the side of cottage base and terminate outside of ...

  • Thermo Products OMC-70 - page 17

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 16 E. ALCOVE INST ALLATION I n this application, a minimum of 18 inches of clearance mu st be provided to the front of the unit. Refer to Figure 4. Alcove installations must use the No. 70 mobile home base. Refer to se ction G. COMBUSTION AIR for additional combus ...

  • Thermo Products OMC-70 - page 18

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 17 2. The return air opening may be located in the top, the center or (ideally ) the bottom of the closet door, or side wall. : Do not obstruct any return air ope nings, including the return grille on the furnace. To do so may cause the furnace to activate the hig ...

  • Thermo Products OMC-70 - page 19

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 18 The preferred location of the outside combustion air intake termination (e.g. an optional stainless steel intake hood, part no.370183) is through the side of the structure, skirting or enclosure. An alternate termination location is under the structure in the s ...

  • Thermo Products OMC-70 - page 20

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 19 Figure 6. ...

  • Thermo Products OMC-70 - page 21

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 20 H. FUE L PI PING Sizing and inst allation of fuel li nes must be in accordance with federal, state and local regulations. 1. General Gas Piping (GMC-85) : Because of the potential of the odorant to fade, a gas leak may not be detected by smell. If this furnace ...

  • Thermo Products OMC-70 - page 22

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 21 : 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 (13.9 inches W.G.). The furnace can be isolated from the gas supply by closing the m anual gas shutoff v ...

  • Thermo Products OMC-70 - page 23

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 22 I f possible, install the tubing under the floor. Specific information on piping, fuel pump connections, lift c apabilities and tank insta llations is provided in the fue l pump manufacturer ’s instructions. If the oil tank is located inside the building and ...

  • Thermo Products OMC-70 - page 24

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 23 Figure 7. J. ELECTRICAL WIRING All electrical wiring must be instal led in strict accordance wi th local ordinances and codes. In the absence of local ordinances and codes, all electrical wiring must conform to the requirements of the National El ectric Code , ...

  • Thermo Products OMC-70 - page 25

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 24 1. Electrical Branch Supply Circuit Route all electrical wiring to the left side of the furnace. The power supply circuit to the furnace must be installed and grounded in accordance with the provisions of the National Electrical C ode , ANSI /NFPA-70-1999, or l ...

  • Thermo Products OMC-70 - page 26

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 25 Once the furnace is installed, check the thermostat anticipator the proper nominal setting. a. Connect a multimeter, c apable of re ading milliamps (mA), in se ries with the low voltag e wires to the ther mostat. b. I ncrease the thermostat setting, or create a ...

  • Thermo Products OMC-70 - page 27

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 26 4. WIRING DIAGRAM ...

  • Thermo Products OMC-70 - page 28

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 27 K. BURNER INSTALL ATION The burner mounts to the furnace on three mounting bolt studs, located on the burner mounting plate, in the lower portion of the vestibule, directly in front of the heat exchanger. The burner insertion depth has been fixed by the factory ...

  • Thermo Products OMC-70 - page 29

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 28 8. The furnace is now ready for burner adjustm ent, refer to the foll owing “BURNER OPERATION AND ADJUSTMENT” section. L. BURNER OPERATION AND ADJUST MENT : NEVER burn garbage or refuse in the furnace. NEV ER try to ignite oil or gas by tossing burning pape ...

  • Thermo Products OMC-70 - page 30

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 29 replacement parts for l ocation identi fication). After the furnace is warmed up to a steady- state condition (about 15 minutes), the final burner adjustment should be made using combustion instrumentation for measuring carbon dioxide (CO 2 ) or oxy gen (O 2 ), ...

  • Thermo Products OMC-70 - page 31

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 30 The temperature rise across t he furnace heat exchanger operating at steady-state conditions (about 15 to 20 minutes) should not exceed 100°F. The normal comfort range is between 70°F to 100°F. A lower temperature rise usually results in a higher sy stem eff ...

  • Thermo Products OMC-70 - page 32

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 31 V. DEALER MAINTE NANCE THIS SECT ION IS ONLY TO BE PERFORMED BY TRAINED, QUALIFIED SERVICE PERSONNEL, AND NOT BY T HE FURNACE OWNER. A. TROUBLESHOOTING : When testing electrical equipment, always follow standard electrical procedures and precautions. 1. Check f ...

  • Thermo Products OMC-70 - page 33

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 32 Yes Set thermostat subbase to "HEAT" Does thermostat make contact? Does a "call f or heat" initiate an ignition cycl e? No Yes Is room temperature above 90 deg. F? Yes W ait for room air to cool. Yes Turn thermostat setting above room tem p. ...

  • Thermo Products OMC-70 - page 34

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 33 Is there c ombustion airflow to the furnace? Yes Yes Is the trans former (GMC) or oil primary control (OMC) supplying 24 VAC to the thermostat? Replace control trans former (GMC) or try resetting the oil primary control (OMC). Replace the oil primary control, i ...

  • Thermo Products OMC-70 - page 35

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 34 Is there 24 VAC across the power terminals of the ignition control module (GMC) or 120 VAC across the ignition transformer (OMC)? After pre-purge, does the ignition control (GM C) or the oil primary (OM C) produce a spark at the ignition electrodes? W hile igni ...

  • Thermo Products OMC-70 - page 36

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 35 After f uel v alv e opens, does the burner i gnite? For the GM C, measur e gas supply pressur e at inlet to gas val ve. Is it at l east 4.5" W .G. f or natural gas or 11" W .G. f or L.P. gases? For the OMC, i s oil pres ent in the fuel l ine at the va ...

  • Thermo Products OMC-70 - page 37

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 36 Troubleshooting Complete. Does the circulating air blower tu rn off after thermostat is satisfied within 4 minutes? Does burner shut off when thermostat is satisfied? Has the high limit thermostat or auxiliary high limit thermostat act ivated? Check all wiring ...

  • Thermo Products OMC-70 - page 38

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 37 B. CAD CELL CHECKOUT PROCEDURE: (OMC ONLY) 1. Remove cad cell lead wires, then start the burner. Shortly after burner starts, place a temporary jumper between ter minals f & f of the oil primary control. Connec t ohmmeter across cad cell lead wires - resist ...

  • Thermo Products OMC-70 - page 39

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 38 C. HEAT EXCHANGER CLEANING INSTRUCT IONS : The heat exchanger must be cleaned by a qualified service person. For oil-fired units, it is important to inspect and clean the heat exchanger once a y ear, or as necessary , to remove any build-up of soot. A lay er of ...

  • Thermo Products OMC-70 - page 40

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 39 Figure 8. Reassemble the furnace to the original factory -built condition. Remount the burner, being certain that the air tube is properly inserted into the chamber opening. I f heavy soot deposits were found in the heat exchanger, this indicates that the burne ...

  • Thermo Products OMC-70 - page 41

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 40 Check all flue pipes for restrictions due to soot, or carbon build-up, as well as foreign matter, or any materials, that cause the venting sy stem to restrict the proper venting of combustion products. I f a restriction is found, the flue pipe mu st be cleaned ...

  • Thermo Products OMC-70 - page 42

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 41 VI. USER INFORMATION SECTION A. WARNINGS AND CAUTIONS: : If you suspect there is a problem with the furnace, pertaining to the venting system or any other related problem , imm ediately contact a qualified service agency. If a service agency is not available, c ...

  • Thermo Products OMC-70 - page 43

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 42 B. COMP ONENT LOCATIONS The following diagram shows a ty pical furnace installation and typical position of the components referenced in these instructions. Figure 9. C. INSPECTION AREAS IMPORTANT: For safe oper ation it is the re sponsibility of the owner and/ ...

  • Thermo Products OMC-70 - page 44

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 43 2. EXTERI OR OF FURNACES: The furnace ex terior should be inspected for signs of excessive heat such as discoloration of materials or damage from rust or corrosion. 3. VENT CONNECTOR: The furnace vent pipe should be inspected for signs of rust, corrosion pittin ...

  • Thermo Products OMC-70 - page 45

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 44 APPENDIX A. REPLACEMENT PARTS LIST ...

  • Thermo Products OMC-70 - page 46

    All installations and ser vices m ust be perform ed by qualified se rvice per sonnel. 45 ...

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Documents that we receive from a manufacturer of a Thermo Products OMC-70 can be divided into several groups. They are, among others:
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All of them are important, but the most important information from the point of view of use of the device are in the user manual Thermo Products OMC-70.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Thermo Products OMC-70, service manual, brief instructions and user manuals Thermo Products OMC-70. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Thermo Products OMC-70.

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A complete manual for the device Thermo Products OMC-70, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Thermo Products OMC-70 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Thermo Products OMC-70.

A complete Thermo Products manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Thermo Products OMC-70 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Thermo Products OMC-70, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Thermo Products OMC-70, that we can find in the current document
3. Tips how to use the basic functions of the device Thermo Products OMC-70 - which should help us in our first steps of using Thermo Products OMC-70
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Thermo Products OMC-70
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Thermo Products OMC-70 in a specific country, if it was not possible to solve the problem on our own.

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