Thermo Products omd-70 service manual L.Burner Operation And Adjustment

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L.BURNER OPERATION AND ADJUSTMENT

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

8.The furnace is now ready for burner adjustment, refer to the following “BURNER OPERATION AND ADJUSTMENT” section.

L.BURNER OPERATION AND ADJUSTMENT

Manual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual background: NEVER burn garbage or refuse in the furnace. NEVER try to ignite oil or gas by tossing burning papers or other material into your furnace.

Manual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual background: If you do not follow these instructions exactly, a fire or explosion may result causing personal injury, loss of life or property damage.

Manual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual background: NEVER use gasoline or a mixture of oil and gasoline to start the burner or furnace.

1.Qualified service personnel must perform the first lighting of the burner.

2.The burner instructions must be read and understood before any attempt is made to light this burner.

NOTE: For the sequence of burner operations, see individual burner manual. To successfully service and initially set up this furnace you must use the following instruments:

[Items (a)-(e) ... apply to both oil and gas furnaces), item (f) ... applies to gas units only, and items (g)-(h) ... applies to oil units only]

a.Carbon dioxide (CO2) or oxygen (O2) analyzer.

b.Flue gas thermometer (range 100°F to 1000°F) and temperature-measuring device (range -40°F to 240°F, for return and supply air temperatures).

c.Carbon monoxide (CO) detector

d.Electrical multimeter

e.Liquid, U-tube type manometer or equivalent pressure measuring instrument (range: 0 – 28 in.W.G.)

f.Smoke spot tester or equivalent smoke density measuring device

g.Oil pressure gauge (range: 0-150 PSIG)

h.Vacuum gauge (range: 0-30 in. W.G. vacuum)

Turn the main service switch that provides power to the furnace to the “off” position. Set thermostat above room temperature. Open all fuel supply valves. Bleed air out of fuel supply line, if not already completed (for oil, power must be “on” to the burner and the pump must be operating to expel air in the supply line).

When ignition is established, if necessary, make a preliminary burner air adjustment to attain a clean combustion flame (one which does not create smoke by eye). On the GMD unit, the flame may be viewed through a sightglass mounted on the burner. On both units, the flame may be viewed through the overfire inspection cover (see exploded diagram of

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Contents MODEL: OMD-70 INSTALLATION AND SERVICE MANUAL FOR YOUR SAFETYGAS-FIREDOR OIL-FIREDFURNACE DOWN FLOW & DIRECT VENT SEALED COMBUSTIONI. SAFETY SECTION If you do not follow these instructions exactly, a fire or explosion may result causing personal injury, loss of life or property damage Do not attempt to start the burner when All installations and services must be performed by qualified service personnel POWER SWITCH BEGINNING PAGE TABLE OF CONTENTSSECTION a. Combustible material b.Non-combustiblematerial MODELS OMD/GMDGMD-85 III. FURNACE SPECIFICATIONSMODEL BURNER DATA BLOWER DATAC.FURNACE LOCATION IV. INSTALLATION A. ROOF JACKB. STANDARD CHIMNEY D. BASE INSTALLATION Combustible Floor Base Model: 70-BASECottage Base Model: 01COT-BASE Figure 1A1. Combustible Floor Base Model: 70-BASE 2. Cottage Base Model: OMCCOT-BASE IMPORTANT: Adequate combustion air must 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 the structure. All joints and seams of supply ducts and combustion air ducts must be closed with a sealing method suitable to the application conditions and temperatures e.g. using high temperature silicone caulk and/or aluminum tape E. ALCOVE INSTALLATION F. CLOSET INSTALLATIONG. COMBUSTION AIR 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 skirted or crawlspace area providing a minimum of 50 square inches of free area exists around the perimeter for outside combustion air to be drawn through. NOTE: Combustion air cannot be drawn from the occupied space of the home Figure H. FUEL PIPING 2. Oil Tank and Piping OMD-70 All installations and services must be performed by qualified service personnel Figure J. ELECTRICAL WIRING 1.Electrical Branch Supply Circuit 4. BLOWER CONTROLLER INFORMATION FOR PSC MOTOR TERMINAL DEFINITIONS & FIELD WIRINGA. Inputs B. OutputsC. Operating Modes PSC TROUBLE SHOOTING DIAGNOSTIC FEATURES5. WIRING DIAGRAM K. BURNER INSTALLATION L.BURNER OPERATION AND ADJUSTMENT replacement parts for location identification. 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 CO2 or oxygen O2, carbon monoxide CO, smoke for oil furnaces, and stack temperature. In order to achieve the most efficient combustion possible, the following steps must be taken M. FLUE GAS COMBUSTION ANALYSIS BURNER COMBUSTION PARAMETERSV. DEALER MAINTENANCE A. TROUBLESHOOTINGprior to removing doors Note: Check diagnostic code through view portOMD/GMD TROUBLESHOOTING FLOWCHART Are the thermostat wires closed? If 120 VAC is After fuel valve opens, does the burner ignite? Has the high limit thermostat B.CAD CELL CHECKOUT PROCEDURE: OMD ONLY C.HEAT EXCHANGER CLEANING INSTRUCTIONSD. CLEANING OR REPLACING FLUE PIPES E. EXTENDED SHUTDOWN VI. USER INFORMATION SECTION A. WARNINGS AND CAUTIONSB. COMPONENT LOCATIONS Figure C. INSPECTION AREASE. CONTACT INFORMATION D.FILTER LOCATION AND CLEANINGINSTALLATION / SERVICE APPENDIX A. REPLACEMENT PARTS LIST