Slant/Fin 473915000 User manual

P/N 473915000
[240011792, Rev. B 7/17/2017]
Homeowner Instructions
Information and specications outlined in this manual in effect at the
time of printing of this manual. Slant/n Corp. reserves the right to
discontinue, change specications or system design at any time without
notice and without incurring any obligation, whatsoever.
Check our website frequently for updates: www.slantn.com
OIL-BURNING EQUIPMENT
HIGH EFFICIENCY HOT-WATER BOILERS
NOTICE
1. Read and save these instructions for reference.
2. Use only #2 fuel oil. Do not use gasoline,
crankcase drainings, or any oil containing
gasoline.
3. Never burn garbage or paper in the unit, and
never leave combustible material around the
boiler. Do not stack items on or around the
appliance within the required clearance to
combustibles.
4. Ensure the supply of combustion air to the
appliance is not obstructed or cut off. Ensure
the proper ventilation to the appliance area is
maintained.
5. Do not tamper with unit or controls call your
service agent.
WARNING
Maintenance and Service must be completed by
qualied agency.
Modication, substitution or elimination of factory
equipped, supplied or specied components may
result in personal injury or loss of life.
TO THE OWNER - Installation and service of this
boiler must be performed by a qualied installer.
TO THE INSTALLER - Leave all instructions with
boiler for future reference.
!
SLANT/FIN CORP.
100 FOREST DRIVE
GREENVALE, NY 11548
www. slantn.com
WARNING
Fire, explosion, asphyxiation and electrical shock
hazard. Improper maintenance and service could
result in death or serious injury. Read this manual
and understand all requirements, including use of
qualied agency where directed.
!

2
P/N 473915000
BOILER START-UP
WARNING
• Do not set combustion visually.
• Do not start burner unless all clean-out doors are
secured in place.
• Do not attempt to start burner when excess oil
has accumulated, when unit is full of vapor, or
when combustion chamber is very hot.
!
Boiler Start-Up Information
• Have a qualied service technician perform the startup
procedures. Refer to boiler Installation, Operation &
Maintenance Manual for full details.
• Instruments are the only reliable method to determine
proper combustion adjustments. An improperly
adjusted burner causes soot and high fuel bills due to
incomplete combustion of fuel oil. This may require
excessive boiler maintenance, service costs, and in
some instances, house cleaning or redecorating.
• ¼” NPT plug is provided in burner swing door to take
draft readings in combustion chamber.
• Chimney vent only, does not apply to direct vent
boilers. ¼” diameter hole is required in the ue pipe
between boiler and barometric damper to take draft,
CO2, smoke and temperature readings.
• Adjust air shutter on oil burner to obtain “trace”
of smoke. Measure CO2at this point. Increase air
adjustment to lower CO2by one-half (1/2) percent to
one (1) percent.
• Verify zero (0) smoke and correct draft is obtained for
installed unit. Reference boiler Installation, Operation
& Maintenance Manual for correct draft settings. If
proper draft can not be maintained, changes and/or
modications may be required in venting or chimney.
Restarting after Ignition Failure (Lockout)
Riello Oil Burners:
• Lockout is indicated by red reset button illuminating on
oil burner primary control. Press and release red reset
button ONCE to reset the control. If there is call for
heat burner will start.
• Burner goes into lockout second time, or fails to
operate after reset button is pushed, contact qualied
service technician to service boiler.

3
P/N 473915000
GENERAL BOILER MAINTENANCE
General Maintenance During Operation
• Have a qualied service technician perform preventive
maintenance prior to heating season.
• Preventive maintenance of oil red boiler reduces
operating costs.
• Boiler and vent pipe should be inspected for
accumulation of soot or scale deposits periodically but
a least once every year before start of the heating
season. When soot is present on the section walls of
the ue ways, improper combustion will result, causing
additional sooting and scaling until ue ways are
completely closed.
• Boiler installer should have provided an emergency
power isolation switch located within 5 feet of the
boiler.
WARNING
Electrical shock hazard. Disconnect power to
boiler with emergency power isolation switch when
servicing boiler. Failure to do so could result in death
or serious injury.
!
Oil Burner Maintenance
Have a qualied service technician perform oil burner
maintenance.
1. Oil Burner Motor - Add two-three drops of non-
detergent electric motor oil to each cup located at front
and rear of motor if so equipped. Excessive oiling will
shorten life expectancy of motor.
2. Fuel Filter - Replace to prevent contaminated fuel from
reaching nozzle. A partially blocked fuel lter can lead
to premature failure of the fuel pump.
3. Fuel Pump - Replace pump screen and clean pump to
maintain reliable fuel delivery to nozzle.
4. Ignition Electrodes - Clean and adjust per
manufacturer's recommendations, to maintain reliable
ignition of the oil.
5. Nozzle - Replace annually to maintain safer and reliable
combustion efciency.
6. Fan and Blower Housing - Keep clean, and free of dirt,
lint and oil to maintain proper air fuel requires to burn.
Boiler Cleaning Instructions
• Have a qualied service technician perform cleaning.
• Shut off all electrical power to boiler/burner and shut
off fuel supply.
• Remove 4 bolts for access to combustion chamber. If
boiler is equipped with exible fuel lines, swing door
open.
• Remove vent connector.
• Remove bafes for cleaning. 4,5,6 section boilers are
factory equipped with pair of bafes installed in third
pass (two inner ueways).
• Clean 3rd pass - insert 2" diameter x 42" long wire
or ber bristle brush into each of the two 3rd passes.
Using long strokes, push brush all the way through the
boiler until brush has exited the smoke box opening.
Pull the brush all the way forward until it exits the front
of the boiler. Continue this operation for the entire
length of ue way until clean. Repeat operation in other
3rd pass ue way.
• Clean 2nd pass - insert 2" diameter x 42" long wire
or ber bristle brush into each of the two 2nd passes.
Using long strokes, push brush all the way through the
boiler until brush hits back wall of reversing chamber.
Pull the brush all the way forward until it exits the front
of the boiler. Continue this operation for the entire
length of ue way until clean. Repeat operation in other
2nd pass ue way.
• Vacuum loose debris in bottom of combustion chamber
and smoke box.
• See Installation, Operation & Maintenance Manual for
more information.
Shutting Down The Boiler for Extended Periods
of Time
NOTICE
Keep oil supply valve shut Off if burner is shut down
for extended period of time.
• Turn off electrical power to boiler using eld
installed fused disconnect switch if boiler is shut
down for extended period.
• When restarting boiler from extended shut-down,
follow Operating Instructions in the Installation,
Operation & Maintenance Manual.

Date of Installation:
Boiler Model #:
Installed By:
Contact a qualied service technician before remodeling, for annual
service/maintenance, before extended periods of shutdown,
and before start-up.
SLANT/FIN CORPORATION, Greenvale, N.Y. 11548 • Phone: [phone]
FAX: [phone] • Canada: Slant/Fin LTD/LTEE, Mississauga, Ontario