5.Openthefurnacedoorandconnecttheoilline
totheintakeportonthepump.Tightenother
portplugsonthepump.NOTE:Verifytheoil
lineisairtight!Airleakscancausethepump
toloseprimeandwillcreateotherproblems
suchasnozzlefailure,odors,rumblingnoise,
andfalsesafetyshutdown.
6.Inserttheshortlengthofthecoppertubelevel
withthebottomoftheduplexbushing.Form
thetubeintoaninverted"U"toserveasavent.
to a dedicatedpump primemode,during
whichthemotor,igniterandvalvearepowered
for 4 minutes.The yellowLEDwill be on.
NOTE:If primeis notestablishedduringthe
fourminutepumpprimemode,repeatstep3
untiltheoilpumpisfullyprimed.
4.Whenoilflowisclearandfreeofairbubbles,
closeair-bleedvalveand tighten.(Timeto
bleedairoutwillvarydependingonlengthof
oilline,numberofbends,etc.)
LeakCheck
Toeliminateproblemscausedbyair in theoil
line,allconnectionsinthe oil supplylineand
allplugs,nuts,andfittingsonthe pumpmust
be airtight.NOTE:This includesthe nut that
coversthepressureadjustment.It is important
thatthe hook-upbedonecarefullyandwitha
goodflaringtool.
Preparethe burnerfor primingbyattachinga
clearplastichoseoverthebleedportfittingand
fullyopeningthepumpbleedport.Useasuitable
containertocollectpurgedoil.
Toensurecontinuousoperation,usea wireto
jumpterminalsT-T(orF-F)ontheprimarycontrol
whileburneris running.
Afterthepipingto thefurnaceis complete,all
connectionsmustbe testedfor leakage.This
includespipeconnectionsatthemaingasvalve,
emergencyshutoffvalveandeachjointorunion.
Thesoapandwatersolutioncanbeappliedusing
asmallpaintbrush.Ifanybubblingisobserved,
theconnectionisnotsealedadequatelyandmust
beretightened.Repeatthetighteningandsoap
checkprocessuntilbubblingceases.
Priming furnaces equipped with Honeywell
R7184 primary control:
1. While the ignition is on, press for 1/2 second
(or less), and release the reset button. The
lockout time will be extended to 4 minutes.
2. If prime is not established within the 4 minutes,
the control will lock out. Press the reset button
to reset the control.
3. Repeat steps 1 & 2 (if needed) until the oil
pump is fully primed.
Priming furnaces equipped with the Beckett
7505 primary control:
1. After the burner starts, press and hold the
reset button until the yellow LED turns on (15
seconds). This indicates that the button has
been held long enough.
2. Release the reset button. The yellow LED will
turn off and the burner will start up again.
3. At burner start up, click the reset button while
the igniter is still on.This transitions the control
Fuel Oil Type
Do not use fuel oil heavier than Grade No. 2.
Grade No. 1 may be used where the oil supply
is subject to low temperatures.
DO NOT USE GASOLINE, CRANKCASE OIL,
OR ANY OiL CONTAINING GASOLINE.
/K WARNING:
Failure to keep supply of oil clean
by various procedures described
above may cause failure of certain
components such as the fuel pump
gears, check valve, shaft seal, or
burner nozzle which may result in
a burner fire.
Conversion to Propane (LP) Gas
This gas fired heating appliance was shipped from
the factory for use with natural gas. However, the
appliance can be converted for use with LP gas.
Use the following procedure for gas conversion
of the burner. See Table
Atmospheric and Direct Ignition Furnaces
1. Follow the instructions "How to Shut Off Gas"
on pages 21 or 22.
2. Disconnect the gas pipe union and the electrical
wires connected to the gas valve.
3. Remove the pilot tube and thermocouple from
the gas valve (M1G).
4. Remove the gas valve assembly:
a. Remove screw(s) from gas valve bracket.
Gas valve and spud may be removed.
Orifice is located at the end of the spud
(M1G or M1M) or remove three (3) bolts
from U-shaped manifold plate and orifice
assembly (M1 B).
5. Replace the main orifice with the L.R gas
orifice supplied in the envelope located by the
gas valve. Verify the orifice size matches the
nameplate or Table 10 (page 31). NOTE: It is
not necessary to convert the pilot orifice.
18
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