Reznor RA 140 User manual

Form I-RA/D 140/235 (Version A)
Obsoletes Form I-RA/D 140/235
REZNOR® USED-OIL-FIRED
HEATERS AND BOILERS
Installation/Operation/Maintenance
Manual and
Reference Guide
CSA Certied to Electrical and Fuel Burning requirements only.
Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 1
Heater Models
RA 140
RA 235
RAD 140
RAD 235

Form I-RA/D 140/235 (Version A), Page 2
IMPORTANT
Notice to Owner
and Installer
To ensure the long term benets of burning your used oil in a Reznor® Used-
Oil-Fired Heater, it is necessary to become familiar with the correct instal-
lation and maintenance of your new furnace. Before installing or operating
this heater, make sure you have read and understand this manual.
IMPROPER INSTALLATION OR LACK OF MAINTENANCE
WILL VOID THE WARRANTY.
The most critical sections of this manual are
• Correct Draft Over Fire - Page 21
• General Maintenance Requirements - Page 24
Identical to any gas or oil burner, without adequate draft over the re, the com-
bustion gases cannot escape resulting in an overheated combustion chamber.
Even if the burner is installed correctly and adequate draft achieved, a ue
passage blockage will affect the draft. Burning used oil is similar to burning
wood. A ne gray ash accumulates in the chamber and ue passages. This
accumulation of ash will eventually affect the draft. It is important to remove
this ash before the draft is affected.
These topics are discussed in detail on the pages listed above. Please famil-
iarize yourself with these sections of your manual. Spending a few minutes
to review this material will assure that you receive the return on investment
that you expect from your heater.

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 3
Table of Contents
Installation .................... 4 - 18
Introduction .................................... 4
Use.................................................. 4
Codes and Regulations ................4
Warranty ......................................... 4
Safety Warnings ............................ 5
Secondary Heat Source ................ 5
Fuels ............................................... 5
Hazardous Atmosphere ................ 5
Venting ........................................... 5
Air for Combustion ....................... 6
Non-Compliance ............................ 6
Unpacking and Inspection ............ 6
Parts Carton................................... 7
Heater Placement .......................... 8
Minimum Clearances from
Combustibles ...........................8
High Altitude Installation .............. 9
Fuel Tank, Pump, and Supply
Lines ........................................ 10
Fuel Tank ...................................... 10
General Requirements ................ 10
Pump ............................................ 11
Supply Lines Installation ............ 11
Typical Installation ...................... 12
Mounting the Heater .................... 13
Weights ........................................13
Suspension .................................. 13
Venting the Heater ....................... 14
Guidelines for the Vent System . 14
Detailed Requirements for the
Vent System .......................... 15
Draft Regulator ............................16
Installing Ducts ............................ 17
Inlet Air Duct ................................ 17
Discharge Duct ............................ 17
Power Installation ........................ 18
Heater Power ...............................18
Pump Power Installation ............ 18
Heating Thermostat .................... 18
Heater Start-Up .......... 19 - 23
System Check .............................. 19
Priming and Leak Check ............ 19
Heater Start-Up ............................ 21
Start-Up Procedure .....................21
Check Test - After Start-up ......... 21
Maintenance ............... 24 - 33
General Maintenance
Requirements .......................... 24
Maintenance Schedule ............... 24
Maintenance Procedures ............ 25
Service ....................... 34 - 47
General Service ........................... 34
General Operation ....................... 34
Troubleshooting .......................... 36
Oil Burner Troubleshooting ....... 36
Backow Sensor .........................36
Troubleshooting Chart Guide .... 37
Location of Components
Referenced in Trouble-
shooting Charts .....................38
Troubleshooting Charts .............. 39
Appendix ...................... 48-50
Wiring Diagrams ......................... 48
Hour Meter / Cleaning Record .... 50
Index ...................................51

Form I-RA/D 140/235 (Version A), Page 4
Installation
Use
This heater is for commercial or industrial use only.
The heater should be installed by an experienced installer thoroughly
trained and experienced with the installation of oil-red appliances.
The installer should be familiar with the special precautions neces-
sary in the handling and storage of used automotive oils which may
contain small amounts of gasoline.
Installation must comply with:
In the United States
The Standard for the Installation of Oil Burning Equipment
NFPA 31
The National Electrical Code NFPA 70
Federal, State, and local municipal codes
In Canada
CSA Standard B139-M91, Installation Code for Oil Burning
Equipment
CSA Standard C22.1-Canadian Electrical Code, Part 1
Federal, Provincial, and local municipal codes
Installation, operating and maintenance permits may be
required from regulation authorities covering environmental
quality, fuel, re and electrical safety. Municipal permits may
also be required.
Regulation requires that only used oil generated on the prem-
ises of the owner may be burned in this equipment unless
written authorization is obtained from the regulatory authority.
WARRANTY IS VOID IF ....
1. Heater is not installed in accordance with these instructions
and applicable codes and ordinances.
2. Wiring is not in accordance with diagram furnished with the
heater.
3. Heater is operated in presence of chlorinated vapors.
4. Air through the heater is not in accordance with the rating
plate.
5. Ducts are attached to RA (fan) model
6. Heater is not maintained in accordance with maintenance
requirements. FAILURE TO CLEAN THE COMBUSTION
CHAMBER ON A REGULAR BASIS.
7. Other-than-specied fuel is burned.
8. Heater is operated at elevations greater than 3,000 ft (914M)
above sea level without factory approved modications.
9. Fuel input capacity is altered.
■
■
■
■
■
■
■
■
Introduction
Codes and
Regulations
Warranty
For Warranty information,
refer to the Limited War-
ranty form in the Literature
Bag.

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 5
Conventions Used in this Manual
Hazard Intensity Levels
DANGER: Failure to comply will result in severe
personal injury or death, and/or property damage.
WARNING: Failure to comply can result in severe
personal injury or death and/or property damage.
CAUTION: Failure to comply could result in minor
personal injury and or personal damage.
NOTE: Additional Warnings are also included throughout this
manual.
CAUTION: These heaters are designed to provide
economic disposal of used oils. Used oil is an incon-
sistent fuel and may contain water and/or foreign
materials which may cause the unit to shut down.
A secondary source of heat should always be pro-
vided to the building; do not depend on used oil as
your only source of heat. This will prevent building
damage should the heater become inoperable dur-
ing subfreezing weather.
WARNING: Approved fuels are No. 2 fuel oil and
used automotive transmission uid and crankcase
oils up to 50 weight. Do not attempt to burn any
grade of gasoline, paint thinner, or non-approved
uids. Adequate ventilation must be provided in
any enclosure where storage tanks, pumps, or ac-
cessories are installed.
This heater is not designed for use in hazardous atmospheres contain-
ing ammable vapors or combustible dust, or atmospheres containing
chlorinated or halogenated hydrocarbons.
WARNING: Failure to provide proper venting could
result in death, serious injury, and/or property dam-
age. Units must be installed with a ue connection,
draft regulator and proper vent to the outside of the
building. Safe operation of any gravity vented heat-
ing equipment requires a properly operating vent
system, correct provision for combustion air, and
regular maintenance and inspection.
Safety
Warnings
Secondary
Heat Source
!
Venting
Fuels
Hazardous
Atmosphere

Form I-RA/D 140/235 (Version A), Page 6
Safety Warnings
Continued
Unpacking
and Inspection
Check the heater for any damage that may have occurred in ship-
ment!
If damage is found, le a claim with the transport company. Your unit
was inspected and tested at the factory prior to crating and was in
perfect condition at that time. Open the boxes and verify receipt of
all parts.
To protect the unit during shipping, the blower model (RAD) has spe-
cial supports that must be removed before installation.
• Blower support legs - Remove the four blower support legs
and screws.
• Check Belt Tension - Belt should be able to be depressed
1/2”- 3/4” (13-19mm) - See illustration. If the belt does not
have proper tension, adjust by
means of the adjusting screw on the
motor base. After proper tension is
achieved, tighten the lock nut on the
adjusting screw.
Replace the belt guard.
WARNING: Care should be exercised to ensure that
an adequate supply of combustion air is available
and free to enter the air openings on all units. Room
openings must equal one square inch per each
1,000 BTU heat input.

Fan Models (RA) use plastic cable ties to support the fan motors
during shipment. Cut and remove prior to installation.
Air for
Combustion
Non-
Compliance
Failure to install or maintain this heater properly will void the war-
ranty.

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 7
Parts Carton Item Part No. Description
1 222096 Thermostat
2 96388 Oil Filter
3 135986 Vacuum Gauge
4 110320 Foot Valve
5 130952 Oil Pump Inlet Manifold
6 37866 Draft Regulator
7 121030 Recycling Window Decal
8 121603 Warning label (for inlet to fuel
storage system/tank)
9 136864 Foot Valve Strainer
Pump
9
1
6
8
3
5
4
2
7
Additional Parts
Shipped with each heater is a remote fuel pump and a carton of parts.
The carton contains parts required for installation. Before beginning
actual installation, verify that the remote fuel pump and the parts listed
below are at the installation site.

Form I-RA/D 140/235 (Version A), Page 8
Heater
Placement
Do not attempt to install this heater until you have read and
understand this manual!
Placement is critical to the efcient operation of this heater.
Measure all distances to comply with the specic code requirements
and minimum clearances listed below.
Refer to the section on Venting your heater for vent requirements
and recommendations.
Locate the heater so that suitable means shall be provided to facili-
tate regular cleaning and maintenance of the heater (i.e. permanent
platform, portable stairs, ladder, etc.).
WARNING: You must comply with all requirements
on distance from heater to combustibles.
Fan Models Blower Models
RA140/235 RAD140/235
inches mm inches mm
Top 2 51 6 152
Front 48 1219 48 1219
Side
(Burner)*
Canada 6 152 6 152
United
States 18 457 18 457
Side
(Opposite
Burner)*
Canada 6 152 6 152
United
States 18 457 18 457
Rear* 24 610 6 152
Bottom 6 152 6 152
Flue Pipe Canada 9 229 9 229
United
States 18 457 18 457
*Allow for service access.
In Canada, for additional information on installation clearances, refer
to CAN/CSA-B139-M91, “Installation Code for Oil Burning Equipment,”
Clause 7.0 - Installation Clearances.
WARNING: Clearances apply to all combustibles.
Do not leave paper, rags, or any moveable combus-
tibles near the heater or store gasoline or any other
ammable uid near this appliance.
Minimum
Clearances
from
Combustibles

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 9
High Altitude Installation
Standard Model RA/RAD 140 and 235 used-oil-red heaters are
designed for use from sea level up to elevations of 3,000 ft. Without
proper modications severe overheating of the combustion chamber
and heat exchanger will occur if installed above 3,000 ft. Also, the on-
board air compressor will not deliver the correct amount of atomizing
air to the fuel nozzle, resulting in poor combustion. Factory-built high
altitude heaters are identied with the sufx “H” (i.e. RA-235-H).
WARNING: Standard model used oil units installed
above 3,000 ft (914M) elevation will overheat, dam-
aging the heat exchanger assembly. Use of standard
model heater above 5,000 ft (1514M) elevation may
result in incomplete combustion and formation of
carbon monoxide (CO). Elevations above 3,000 ft
(914M) elevation require installation of a heater
that is either factory-built or eld converted for
use at high elevation. Failure to comply can result
in severe personal injury or death and/or property
damage and will void the warranty.
Check the rating plate for the approved elevations.
High Altitude
Installation
If the heater is being installed above 3,000 ft, it must either be factory
built (Model 235-H) for that elevation or be changed in the eld.
The high altitude conversion affects both the remote pump and the
heater. Install the high altitude kit prior to pump and heater installa-
tion.
Models RA/RAD140
Elevation Fuel Input Heat Input Heat Output
GPH LPH BTUH kw BTUH kw
0-3,000 ft 1.0 4.5 140,000 41.0 112.000 32.8
>3,000
- 7,000 ft 0.8 3.6 112,000 32.8 89,600 26.1
Models RA/RAD235
Elevation Fuel Input Heat Input Heat Output
GPH LPH BTUH kw BTUH kw
0-3,000 ft 1.7 7.7 238,000 69.7 190,400 55.8
>3,000
- 7,000 ft 1.45 6.6 203,000 59.4 162,400 47.6
>7,000 ft 1.24 5.6 173,600 50.8 138,880 40.7

Form I-RA/D 140/235 (Version A), Page 10
Fuel Tank,
Pump, and
Supply Lines
General Requirements
Model RA/RAD 140 and RA/RAD 235 heaters are approved to burn
used crankcase oil, transmission uid, and No. 2 fuel oil. Maximum
fuel input for a Model 140 is 1.0 GPH (4.5 L/H). Maximum fuel input
for a Model 235 is 1.7 GPH (7.7 L/H).
The oil supply tank and fuel lines must be installed in accordance
with the National Board of Fire Underwriters requirements and all
local ordinances. A UL-listed tank such as Reznor® Model OT-250 or
equivalent must be used.
In the U.S., regulations require that storage tanks located inside
buildings shall not exceed 275 gallons (1,041 L) individual capacity
or 550 gallons (2,082 L) aggregate capacity in one building.
In Canada, regulations require storage tanks located inside buildings
shall not exceed 550 gallons (2,082 L) individual capacity or 1,100
gallons (4,164 L) aggregate in one building.
Check with the local Fire Marshall to assure compliance with local
ordinances and codes. Installation of the tank and supply lines is
the responsibility of the installer.
Fuel Tank
CAUTION: It is recommended that used oil be at a
temperature of 50°F or higher when it enters the
pump. At a temperature below 50°F, oil becomes
more viscous and difcult to pump. The heater may
re at a reduced rate and become erratic resulting
in nuisance shutdowns.
Install either a UL listed Reznor®Model OT-250 oil supply tank or a
eld-supplied equivalent indoor storage tank.
• If installing a Model OT-250 tank, follow the installation re-
quirements and instructions on the tank.
• If installing a eld-supplied tank, follow the manufacturer’s
instructions.
• Height from the pump to the bottom of the heater should be
no more than 15 ft (4.5M). The used oil supply line must be
3/8” o.d. and a maximum of 100 ft (30.5M) in length.
Although maximum height from the pump to the heater is 15 ft (4.5 M),
we recommend that ease of service be considered when determining
heater location. A service height of eight feet (2.5 M) is recommended.
See the illustrations on pages 12 and 13 for examples of tank and
line installation.
WARNINGS: Never pour gasoline or used oil con-
taining gasoline into the supply tank. Adequate
ventilation must be provided in any enclosures
where storage tanks, pumps, or accessories are
installed.
Fuel Tank

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 11
Remote Fuel Pump
The Model OT-250 tank has a platform designed for attaching the
remote fuel pump.
• Attach the fuel pump legs permanently either on the platform,
directly to a eld-supplied tank, or in a location very near to
the oil tank.
• Mount the remote pump assembly in an upright, horizontal
position as shown in the illustration. (NOTE: Motor enclosure
appearance may be different than illustrated but must always
be mounted in this upright position.)
CAUTION: Do not mount the pump assembly in a
vertical or inverted position.
Pump
Supply Lines
Installation
CAUTION: Do not use TEFLON®based pipe dope or
TEFLON® tape to seal any pipe connections. (TEF-
LON® is a registered trademark of DuPont Chemi-
cal.) Use of TEFLON®based pipe dope or TEFLON®
tape will void the pump warranty.
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Supply Lines
Read this section carefully before installing any supply lines. Since a suction line leak is nearly im-
possible to nd, take your time to assure all connections are leak-free during installation. Supply
lines and ttings are furnished by the installer. See the following illustration for minimum ttings
required. Length of pipe and tubing depends on the installation.
Run the suction line, using 1/2” standard black iron pipe, between
the inlet side of the lter and the foot valve. (Refer to the illustration.)
A fuel line lter with a cleanable strainer, a foot valve, a foot valve
strainer, and a vacuum gauge are provided with the heater. To pre-
vent air from entering the line, do not use union connections. Install
Suction Line (portion
of supply line from
foot valve to pump)

Form I-RA/D 140/235 (Version A), Page 12
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Typical
Installation
Supply Lines
Installation
Continued
the suction line components as illustrated. With the vacuum gauge
mounted on the outlet side of the lter, the gauge will indicate any
suction line restriction including a dirty lter. A pump inlet manifold is
supplied for direct connection of the lter to the inlet of the pump.
The 50 psi relief valve supplied with the pump and a return line of 1/8”
NPT black iron pipe must be installed as illustrated.
The discharge line between the valve on the outlet side of the fuel
pump and the heater should be 3/8” O.D. copper tubing with a mini-
mum of 1/32” wall thickness with 45° are ttings. The discharge line
must continually rise. A lift height of up to 15 ft (4.5 M) is acceptable
with a maximum total length of 100 feet (30.5 M) of tubing. (NOTE:
Do not use 1/2” o.d. tubing in the supply line for these models.)
Do not install manual valves in the supply line.
Connect the fuel line to the heater at the connection on the corner of
the service tray.
All piping should be protected from possible damage and be rigidly
fastened in place in a workmanlike manner. Do not use TEFLON®
based pipe dope or TEFLON®tape at the connections in an oil line.
Use an oil-resistant pipe dope. Do not use union connections in the
suction line (line between the oil supply and the remote pump).
NOTE: Care must be exercised to ensure airtight connections.
Return Line
Discharge Line (por-
tion of supply line
from pump to heater)
Supply Line
Connections and
Support
Suction Line (cont’d)

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 13
Mounting the
Heater
Weights
Before suspending the unit, check the supporting structure to ensure
it has sufcient load-carrying capacity to support the weight of the
heater.











Model Net Weight
lbs kg
RA140 290 132
RA235 343 156
RAD140 352 160
RAD235 410 186
Use four 1/2”-13 diameter threaded rods. Lock each threaded rod
using a washer and nut as shown in the illustration below. Or, use
optional swivel connections (Option CK10) and eld-provided 1”
threaded pipe. Lock swivel connections as shown in the illustration.
Remove the shipping crate bottom from the unit.
Remove the angle clips and re-insert the screws into the heater
cabinet.
WARNING: This heater must be supported level for
proper operation. Do not place or add additional
weight to the suspended heater.
Suspension

Form I-RA/D 140/235 (Version A), Page 14
Venting the
Heater
WARNING: Failure to provide proper venting could
result in death, serious injury, and/or property dam-
age. Units must be installed with a ue connection
and proper vent to the outside of the building. Safe
operation of any gravity vented heating equipment
requires a properly operating vent system, correct
provision for combustion air, and regular mainte-
nance and inspection.
The vent system must comply with all local codes and in the event
that local codes do not exist, the vent system must comply with a
regional or national code.
Guidelines
for the Vent
System


























The requirements for the vent system are dependent on (1) the loca-
tion of the heater within a building and (2) the type of building.
• If the heater and the vent system are within the same heated
space, single wall pipe may be used inside the building. The
portion of the vent system outside the building must be a
factory-built vent that is approved to Standard UL 641. See
illustration below.

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 15



























Detailed
Requirements
for the Vent
System
(NOTE: Read all
before beginning
installation.)
• Any portion of the
vent system that
passes through an
unheated space or a
concealed area such
as an “attic” must be
a factory-built vent
that is approved to
Standard UL 641.
See illustration . . . . .
• The heater may be
vented into a masonry
chimney that complies
with the BOCA Nation-
al Mechanical Code
for low-heat applianc-
es or other building
code requirements for
low-heat appliances.
• Pipe/Joints/Clearances: Single-wall pipe must be a minimum
of 24 gauge galvanized steel for 8” or 9” diameter pipe and 22
gauge for 10” or 12” diameter pipe. Each joint must be secured
with three screws or rivets. If installing a factory-built vent, follow
the manufacturer’s instructions.
If the vent system passes through a combustible wall, material or
roof, for single wall pipe, maintain 18” (457mm) clearance or in-
stall a ventilated thimble that is not less than 12” (305mm) larger
than the diameter of the vent pipe. If installing factory-built vent,
follow the manufacturer’s instructions.
• Horizontal Length and Slope: The horizontal portion of the
vent must comply with the maximum horizontal length shown in
the table below and have not more than two elbows. Horizontal
portions must be sloped upward 1/4” for each foot of pipe. If in-
stallation conditions require horizontal lengths in excess of those
permitted in the table, a draft inducer must be used.
Vent Pipe
Diameter
Model Size and Vertical
Length
Maximum Length of
Horizontal Pipe
8” 140 with 8 feet (2.4M) or
more of vertical pipe
Equal to or less than
the vertical height
8” 235 with 8 feet (2.4M) of
vertical pipe
4 feet (1.2M) or less
8” 235 with 10 feet (3M) or
more of vertical pipe
Equal to or less than
the vertical height
• Vent Size: The vent system must be at least 8” in diameter.

Form I-RA/D 140/235 (Version A), Page 16
Draft
Regulator





Detailed Require-
ments for the Vent
System (cont’d)
• Barometric Draft Regulator: A barometric draft regulator
which is the same diameter as the vent pipe must be used, and
it should be located close to the heater. See page 16. Do not
install a manual damper or any other device that will obstruct the
free ow of the ue gases.
• Support: The vent system must be adequately supported using
non-combustible strapping or supports to carry the weight of the
vent and wind load. Do not use the heater to provide support for
the vent system.
• Vertical Vent: If installing a factory-built vent, follow the manu-
facturer’s instructions.
If a masonry chimney is used, a thimble that is permanently
cemented in place with high temperature cement should be used
to permit easy cleaning of the chimney. The end of the vent pipe
must not extend past the inside wall of the chimney.
• Draft Inducer: If a draft inducer is used, follow the manufac-
turer’s instructions and wire the inducer according to the wiring
diagram provided.
• Terminal End: The vent must terminate at least 3 ft (914mm)
above the highest point of exit and at least 2 ft (610mm) higher
than any portion of a building or obstruction within 10 ft (3M) of
the chimney. Install a vent cap on the terminal end of the vent. A
Reznor (Option CC1) or Type L Breidert Air-x-hauster®vent cap
is recommended. A different style of vent cap could cause nui-
sance problems.
A barometric draft regulator is shipped with this heater and MUST
be installed in the ue near the heater ue opening.
Refer to the illustrations on pages 14 and 15 for recommended lo-
cations. To install, follow the manufacturer’s instructions packaged
with the draft regulator.

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 17
Installing
Ducts
Inlet Air Duct
Canadian installations require eld installation of an inlet air duct
(return air system) on a Model RAD heater. The blower-equipped
heater has an inlet air duct ange. Inlet duct dimensions (inside)
are:
Duct Flange RAD140 RAD235
Height 32-1/8” (816mm) 32-1/8” (816mm)
Width 21-3/4” (552mm) 31-1/8” (791mm)









RAD A Minimum B
140 30” (762mm) 15” (381mm)
235 40” (1016mm) 20” (508mm)
Model RAD 140 235
CFM (free air) 2000 3200
Air throw (9ft
suspension)
50 ft 65 ft
15M 20M
CFM .25" ESP 1425 2140
Slip the ductwork over the ange and attach using 1/2” long sheet
metal screws.
Discharge Duct
A discharge duct may be attached to a Model RAD heater. To con-
nect the duct to the heater,
• Remove the louvers from the furnace.
• Field fabricate a duct transition as illustrated.
• Attach duct transition to the heater using 1/2” long sheet
metal screws
IMPORTANT: Never reduce the furnace opening
size abruptly. Always use a tapered transition like
the one illustrated.

Form I-RA/D 140/235 (Version A), Page 18
Heating
Thermostat
Pump Power
Installation
Pump Power
To connect the electrical power from the heater to the pump,
• Use a 3 conductor, 14 gauge wire system - two 115 volt con-
ductors and a ground. Use BX if permitted, but make certain
to follow local codes for running conduit.
• Refer to the wiring diagram for connecting terminals.
Power
Installation
Heater Power To install main power to the system (check the table below and the
rating plate on the furnace for current requirements),
• Use #12 gauge stranded copper wire for RA and #8 gauge for
RAD to run a dedicated 115 volt, single phase, line from the
power source to a junction box mounted on the wall behind the
heater or as required by appropriate codes.
• Run the length of appropriate conduit from the heater to the
junction box.
• Connect the black wire to the hot lead.
• Connect the white wire to the neutral lead.
• Connect the green wire to the ground lead.
• Install a fused manual reset, line voltage switch (eld supplied)
in this main line
• Electrical
Ratings
A 24-volt thermostat is furnished as standard equipment.
DO NOT attempt to wire relays or other accessories to the thermostat
connections as these are not load terminals.
DO NOT install on or suspend the thermostat from the heater
DO NOT install thermostat on a cold outside wall
To install the thermostat,
• Locate the thermostat ve feet above the oor on an inside
wall, not in the path of warm or cold air currents nor in corners
where air may be pocketed
• Remove the thermostat cover
• Make sure the heat anticipator dial is set at 0.2 amps
• Connect the wires through the back of the thermostat to the R
& W terminals
• Set the ON/OFF switch on the heater electrical box to the
“OFF” position and connect the thermostat wires to the two
“T” terminals on the ignition controller.
Model
Total
Current
Amperes
Minimum
Circuit
Ampacity
Maximum
Fuse Size
(Supply)
RA140 13 16 20
RAD140 24 30 40
RA235 14 18 20
RAD235 24 30 40
DANGER: Make sure that the main circuit is OFF be-
fore making any wiring connections. All wiring must
be done in accordance with appropriate Codes!

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 19
Priming and
Leak Check
For control locations,
refer to illustration on
page 38
Priming and Checking the System
The oil supply line to the heater must be full of oil and free of air for
proper heater operation.
NOTE: Priming the oil line could take up to 30 minutes depending
on the length of the line.
Follow the procedure below to ll the oil line.
1. Be sure the oil tank is lled to at least six inches above the
top of the foot valve.
Burner
Start-Up
System Check
Check Test - Prior to Start-Up
You should check your system completely before operating it.
Check clearances from combustibles. Be certain that the
clearances are in compliance with the appropriate Codes.
Check hangers and supports. Be certain that all hangers,
supports, and arms are adequately anchored and that all
unions or threaded ttings are snug and do not rotate. Heat-
er must be level.
Check to make sure all shipping supports have been re-
moved.
Check the electrical supply. Be sure that all wire gauges are
as recommended and that the supply voltage is as stated
on the heater. Determine that fusing or circuit breakers are
adequate for the load.
Check vents. Be sure that vent pipe and chimney meet the
requirements and appropriate codes. A UL or CSA/UL listed
draft regulator is required. A Reznor®(Option CC1) or Type
L Breidert Air-X-hauster®vent cap is recommended. (Type
L Air-X-hauster®is a trademark of The G. C. Breidert Com-
pany.)
Check the oil supply. Fill the supply tank to at least six inches
from the top of the foot valve. NOTE: Always screen used oil
with a 70-80 mesh strainer when lling the supply tank.
Canadian RAD (blower model) installation only -- Be sure an
inlet air duct is installed in compliance with Codes.
Heater Start-Up

Form I-RA/D 140/235 (Version A), Page 20
2. Set manual disconnect switch to the ON position.
3. Fill the suction line (line between the supply tank and the
pump) with clean used oil. (Do not use new motor oil.)
4. Locate the rubber tubing connecting the pressure switch in
the main control box and the compressor.
• Disconnect the tubing at the tting on the compressor. This will
prevent oil from owing to the burner.
5. Remove the cad-cell wire from the F1-F2 terminals of the igni-
tion controller.
• Either attach a piece of tubing to the bleeder valve on the
strainer tee (see page 26) on the burner assembly or place a
container underneath to collect oil.
• Loosen the bleeder valve.
6. Set the thermostat to a temperature above room temperature.
NOTE: On initial start-up it will take approximately ten minutes to
heat the oil. Once the oil is warm enough, the green light will come
on and the unit will be ready to start. This delay only occurs on initial
start-up or when the disconnect switch has been turned off for an
extended time.
• After the motor starts, place a jumper across the cad-cell termi-
nals (F1-F2) on the ignition controller.
• Observe the remote fuel pump motor to make certain it is run-
ning.
• Open the bleeder valve on the remote pump and wait until a
full ow of oil is obtained without any air.
IMPORTANT NOTE: If air bubbles are present and do not stop, there
is a suction line leak.
• Check the piping between the tank and the pump and correct
the leak.
• Once a full ow of oil is present without any sign of air, close
the bleeder valve on the remote pump.
• Observe the bleeder valve at the strainer tee and wait until a
full ow of oil is obtained without any air.
• Tighten the bleeder valve on the strainer tee and remove the
oil container.
NOTE: DO NOT replace the rubber tubing previously disconnected
from the compressor and DO NOT re-connect the cad-cell wires.
7. Allow the system to operate for several minutes.
• Check the system for leaks at all connections.
• Observe the return line to the tank - oil should be owing.
• Correct all leaks and re-test the system.
8. When the system checks out as having no leaks, turn discon-
nect OFF, replace the rubber tubing and cad-cell wires re-
moved earlier.
9. Remove the jumper from the F1-F2 terminals of the ignition
controller.
Priming and
Leak Check
Continued
For control locations,
refer to illustration on
page 38
You are now ready to start your system.