Thermo Pride OME-72D36 Installation And Service Manual page 32

Oil-fired furnace down flow & direct vent (sealed combustion)
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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.
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)-(d) ... apply to both oil and gas furnaces), item (e) ... applies to gas units only,
and items (f)-(h) ... applies to oil units only]
a. Carbon dioxide (CO
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). The flame
may be viewed through the overfire inspection cover (see exploded diagram of
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 (CO
monoxide (CO), smoke, and stack temperature. In order to achieve the most efficient
combustion possible, the following steps must be taken.
IMPORTANT: To achieve proper combustion and efficiency instruments must be used
to secure CO
, O
2
) or oxygen (O
2
and CO readings.
2
) analyzer.
2
30
) or oxygen (O
), carbon
2
2

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