Leakcheck; Priming Honeywell R7184; Priming Beckett 7505; Fuel Oil Type - Nordyne M1B Installation Instructions Manual

Downflow, direct vent (sealed combustion) forced air gas & oil furnaces
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5.Open thefurnace doorandconnect t heoilline
tothe intakeportonthe pump. T ighten other
portplugsonthe pump. N OTE: V erifythe oil
lineis airtight!Air leakscancausethepump
to loseprimeandwill createotherproblems
suchasnozzle failure,odors, r umbling noise,
andfalsesafetyshutdown.
6.Inserttheshortlength ofthecopper t ubelevel
withthe bottomof the duplexbushing. F orm
thetubeintoaninverted"U" toserveasavent.
to a dedicatedpump prime mode,during
which themotor, i gniter a ndvalve arepowered
for 4 minutes. T he yellowLED will be on.
NOTE:If primeis notestablished d uringthe
fourminutepumpprimemode, r epeatstep3
untilthe oilpumpis fullyprimed.
4.Whenoilflowisclearandfreeof airbubbles,
closeair-bleed valve and tighten.(Timeto
bleedairoutwillvarydepending on length of
oilline,number o f bends,etc.)
LeakCheck
Toeliminate problemscausedby air in the oil
line,all connections in the oil supplyline and
all plugs,nuts,andfittingson the pumpmust
be airtight.NOTE:This includesthe nut that
coversthe pressure adjustment. It is important
thatthe hook-upbe donecarefully andwith a
goodflaringtool.
Prepare the burnerfor primingby attachinga
clearplastichoseoverthebleedportfittingand
fullyopening thepumpbleed port.Usea suitable
container t ocollectpurgedoil.
Toensurecontinuous operation, u sea wireto
jumpterminals T -T(orF-F)ontheprimary control
whileburneris running.
Afterthe pipingto the furnaceis complete, a ll
connections mustbe testedfor leakage. T his
includes p ipeconnections a tthemaingasvalve,
emergency s hutoff v alveandeachjointor union.
Thesoapandwater s olution canbeapplied using
a smallpaintbrush. If anybubbling isobserved,
theconnection i snotsealed adequately a ndmust
beretightened. Repeat t hetightening andsoap
checkprocessuntilbubbling ceases.
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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