CSA RA 350 Installation Manual
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CSA RA 350 Installation Manual

Used-oil-fired heaters
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Installation/Operation/Maintenance
RA 350
RAD 350
REZNOR
®
HEATERS AND BOILERS
Manual and
Reference Guide
Heater Models
CSA Certified to Electrical and Fuel Burning requirements only.
Form I-RA/D 350/500 (Version C)
Obsoletes Form I-RA/D 350/500 (Version B)
USED-OIL-FIRED
RA 500
RAD 500
Form I-RA/D 350/500, P/N 131090R12, Page 1

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  • Page 1 Obsoletes Form I-RA/D 350/500 (Version B) REZNOR USED-OIL-FIRED ® HEATERS AND BOILERS Installation/Operation/Maintenance Manual and Reference Guide Heater Models RA 350 RA 500 RAD 500 RAD 350 CSA Certified to Electrical and Fuel Burning requirements only. Form I-RA/D 350/500, P/N 131090R12, Page 1...
  • Page 2 IMPORTANT Notice to Owner and Installer To ensure the long term benefits of burning your used oil in a Reznor Used- ® Oil-Fired Heater, it is necessary to become familiar with the correct installation and maintenance of your new heater. Before installing or operating this heater, make sure you have read and understand this manual.

  • Page 3: Table Of Contents

    Contents Installation ....4-18 Heater Start-Up ..19-21 Introduction ........4 Burner Start-Up ......19 Use..........4 System Check ......19 Codes and Regulations ....4 Priming and Leak Check .... 19 Warranty ......... 4 Check Test - Prior to Start-Up ..19 Safety Warnings ......

  • Page 4: Installation

    ■ The National Electrical code ANSI/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 ■...

  • Page 5: Safety Warnings

    Safety Conventions Used in this Manual Warnings 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.

  • Page 6: Unpacking And Inspection

    Safety Warnings Continued Air for Combus- WARNING: Care should be exercised to ensure that an adequate supply of combustion air is available tion and free to enter the air openings on all units. Room openings must equal one square inch per each 1,000 BTU heat input.

  • Page 7: Additional Parts

    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. Parts Carton Part No.

  • Page 8: Heater Placement

    Flue Pipe *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 combustibles near the heater or store gasoline or any other flammable fluid near this appliance.

  • Page 9: High Altitude Installation

    High Altitude High Altitude Installation Standard Model RA/RAD 350 and 500 used oil heaters are designed for Installation use from sea level up to elevations of 3,000 ft (914M). Without proper modifications severe overheating of the combustion chamber and heat exchanger will occur if installed above 3,000 ft (914M).

  • Page 10: Fuel Tank, Pump, And Supply

    Fuel Tank, General Requirements Pump, and Model RA/RAD 350 and RA/RAD 500 heaters are approved to burn used crankcase oil, transmission fluid, and No. 2 fuel oil. Maximum fuel input Supply Lines for a Model 350 is 2.5 GPH (11.4 L/H). Maximum fuel input for a Model 500 is 3.6 GPH (16.4 L/H).

  • Page 11: Pump

    Pump 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 field-supplied tank, or in a location very near to the oil tank.

  • Page 12: Typical Installation

    Supply Lines on the outlet side of the filter, the gauge will indicate any suction line restriction including a dirty filter. A pump inlet manifold is supplied for Installation direct connection of the filter to the inlet of the pump. The supply line between the outlet side of the fuel pump and the heater Continued should be either 3/8”...

  • Page 13: Mounting The Heater

    Mounting the Weights Heater Before suspending the unit, check the supporting structure to ensure it has sufficient load-carrying capacity to support the weight of the heater. Net Weight Model RA350 RA500 RAD350 RAD500 Suspension Use four 1/2”-13 diameter threaded rods. Lock each threaded rod using a washer and nut as shown in the illustration below.

  • Page 14: Venting The Heater

    Venting the WARNING: Failure to provide proper venting could result in death, serious injury, and/or property damage. Heater Units must be installed with a flue 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 maintenance and inspection.

  • Page 15: Detailed Requirements For The Vent System

    • Vent Cap Any portion of the vent Factory Built Vent system that passes through an unheated 2 ft (6.0mm) space or a concealed minimum 3 ft (914mm) area such as an “attic” minimum Roof jack recommended by the must be a factory-built manufacturer of the factory built vent that is approved to vent...

  • Page 16: Draft Regulator

    Size 500, a field-supplied relay is required.) A field-supplied UL or CSA/ULC listed draft inducer is required when the draft in the combustion cham- ber measures less than .01” w.c. on a draft gauge. Unfortunately, the draft cannot be measured until the heater is operating.

  • Page 17: Installing Ducts

    Installing Inlet Air Duct Ducts Canadian installations require field installation of an inlet air duct (return air system) on a Model RAD heater. The blower-equipped heater has an inlet air duct flange. Inlet duct dimensions (inside) should be: RAD350 RAD500 Height 36”...

  • Page 18: Power Installation

    Power DANGER: Make sure that the main circuit is OFF before Installation making any wiring connections. All wiring must be done in accordance with appropriate Codes! Pump Power To connect the electrical power from the heater to the pump, • Use a 3 conductor, 14 gauge wire system (RA/RAD 350 - two 115 volt conductors and a ground;...

  • Page 19: Heater Start-Up

    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 ®...
  • Page 20 Priming and 4. Locate the rubber tubing connecting the pressure switch in the main control box and the compressor. Leak Check • Disconnect the tubing at the fitting on the compressor. This will prevent oil from flowing to the burner. Continued 5.

  • Page 21: Heater Start-Up

    Heater Start-Up Procedure After installing and testing your unit, follow the procedure below to start Start-Up the system. • Turn on the main electrical supply to the heater. • Set the manual disconnect switch to the “ON” position. • Set the thermostat to a temperature above room temperature. NOTE: When the low oil temperature limit senses the proper oil tem- perature, the green light on the burner junction box will come on and the heater will fire.
  • Page 22 UNDER THE WARRANTY. To correct this problem, the height of the chimney may need increased and/or a UL or CSA/ULC listed draft inducer may be installed. If a draft inducer is used, a draft proving switch must be installed to shut off the fuel supply to the burner in the event of the failure of the draft inducer.
  • Page 23 Check-Test  Check Discharge Air Temperature - Model RAD with discharge ductwork only. Continued RAD350 - This heater is designed for a maximum of .25” w.c. static pres- sure and for discharge air temperature rises from 40° to 50°F. RAD500 - The standard heater is designed for a maximum of .25” static pressure and for discharge air temperature rises from 55°...

  • Page 24: Maintenance

    Maintenance General WARNING: Turn off electric power to the unit before doing any service or maintenance on the heater. Maintenance Requirements When burning used automotive diesel and truck oils, this heater will require more frequent service than conventional heating equipment. All used oils contain a small amount of ash.

  • Page 25: Maintenance Procedures

    Every Six • Clean the oil strainer at the burner. • Clean the foot valve screen. Months: • Replace the air filter. • Clean the end cone. • Replace the oil nozzle. • Clean the external surfaces of the combustion chamber/heat exchanger.
  • Page 26 Cleaning the Internal Pump Screen Maintenance (cont’d) Procedures NOTE: If the screen is damaged during cleaning, replace it with Reznor Continued P/N 123450. 3. Reassemble the pump • Check the gasket and if a replacement is needed, replace it with Reznor P/N 123451.
  • Page 27 Inspecting and WARNING: Used oils may contain engine-wear metal Cleaning the compounds and foreign materials. When burned, these compounds are deposited within or exhausted from Heat Exchanger this heater. Therefore, care should be taken when Tubes, using, cleaning and maintaining this equipment. Combustion Whenever any cleaning, including the flue pipe and exhaust stack is Chamber, and...
  • Page 28 Maintenance Model RA/RAD 350 - Removing Soot and Ash from the Combustion Chamber, Heat Continued Exchanger and Flue Pipe Cleaning Model 1. On the burner end of the heater, remove the access panel un- RA/RAD 350 derneath the service tray. •...
  • Page 29 Maintenance Model RA/RAD 500 - To determine need for cleaning, inspect the heat exchanger tubes through the smaller access door on the end of the heater Continued opposite the burner (the turning box end). • Turn the four outer door latches 1/4 turn. Inspecting Model •...
  • Page 30 Model RA/RAD 500 - Removing Soot and Cleaning Model RA/RAD 500 Ash from the Combustion Chamber, Heat Exchanger, and Flue Pipe Disconnect the Flue 1. Open the doors on the turning box end. Pipe • Turn the outer door latches 1/4 turn. •...
  • Page 31 Maintenance WARNING: Turn off the electric power before burner Procedures is removed for service. To gain access to the end cone, the burner must be Continued removed. Removing Burner 1. To Remove Burner and Cleaning End • Locate the two yellow wires that go from the burner to the ignition Cone, Nozzle, controller.
  • Page 32 Removing Fuel Line Assembly to Service Controls and Spark Electrodes (Alternate method for servicing nozzle) WARNING: Turn off the electric power before removing the fuel line assembly. NOTE: In order to service the fuel line assembly controls and spark electrodes, it is necessary to remove the fuel line assembly. Removing the Fuel Line Assembly 1.
  • Page 33 Maintenance Electrode Adjustment Check the placement of the electrodes according to the illustration below. Procedures If adjustments are required, loosen the 1/4” screw. Make adjustments in Continued the order listed below. Recheck, and if necessary, re-adjust until elec- trodes are in proper position. 1) From center of nozzle orifice to electrode - up 5/16”...
  • Page 34 Maintenance 2. Remove the Pre-Heater from the Pre-Heater Box • Remove the corner panel from the end of the box. The pre-heater Procedures controls are visible. • Disconnect the fuel lines at the inlet and outlet connections. Continued NOTE: There will be oil in the lines. •...

  • Page 35: Service

    Service General Reznor used-oil-fired heaters have been designed and manufactured ® to provide years of trouble free operation. Service However, as with any type of mechanical equipment, it can malfunc- tion. For your safety, we suggest that if you are unfamiliar with ser- vicing this type of equipment, contact a qualified service person.
  • Page 36 General Compressed air for atomizing the used oil is supplied by a piston-type compressor mounted on the service tray. Model RA/RAD 350 heaters Operation require air pressure within a 12 to 15 psi range for proper oil atomiza- tion. Model RA/RAD 500 heaters require air pressure within a 12 to 16 Continued psi range for proper oil atomization.

  • Page 37: Troubleshooting

    Troubleshooting Oil Burner Troubleshooting To diagnose malfunctions properly, the following test equipment is re- quired: 1) An electrical test meter that can measure AC volts, ohms, and amps; 2) A combustion analyzer kit to measure oxygen and/or carbon dioxide, smoke, stack temperature, and draft; and 3) Two pressure gauges with scales of 0-100 PSIG and 0-30 PSIG.

  • Page 38: Troubleshooting Chart Guide

    Troubleshooting Continued Location - The backflow sensor switch is mounted on a bracket on the hinged viewport cover on the control side of the heater. The location is important in the operation of this switch. Except for limited observation, the viewport cover must be kept closed for the sensor (and heater) to operate properly.

  • Page 39: Size 350 Illustration

    Location of Components Referenced in Troubleshooting Charts Size 350 10 amp fuse mounted Manually reset on the top of the Backflow Sensor electric box. See Switch is on the wiring diagram. Viewport Door Green Light: Limits are satisfied; heater is ready to operate. Transformer (Open the Ignition...

  • Page 40: Size 500 Illustration

    Location of Components Referenced in Troubleshooting Charts IMPORTANT NOTE: Effective 1/20/2005, Models RA/RAD Size 500 500 were converted to a 240 volt 3-wire system. The car- tridge heaters, air compressor, burner, and hour meter were changed from 240 volt to 120 volt. Where applicable, troubleshooting charts have alternate instructions for a Size 500 manufactured prior to 1/2005.

  • Page 41: Run (Green "Power On" Light Is Lit; Green "System Ready" Light Is Not Lit)

    Troubleshooting Chart No. 1 - Thermostat calling for heat; Burn- er motor never attempts to run. Continued Refer to illustrations on Has there been page 39 or 40 and 42. line voltage across Terminals 1 and 2 (Size 350) or Terminals 1 and 10 (Size 500*) for Turn on or correct Check for line...

  • Page 42: With Thermostat Calling For Heat, Burner Motor Runs Momentarily

    Is voltage read? NOT RESET MORE THAN ONE TIME. Replace fuse (Above applies to Size 500 mfgd beginning 1/2005. (CSA units). For a Size 500 mfgd before 1/2005, check for 230V across Terminals 5 and 2.) *Reset button on the motor activates when the motor is overheated.

  • Page 43: System Does Not Attempt To Ignite

    Chart No. 3 - Thermostat is calling for heat. Burner motor runs for about 30-45 seconds. System does not attempt to ignite. First, check combustion chamber for excess oil. NOTE: After ignition control is reset, you will have Transformer and Electrode Checks: 30 SECONDS to perform the tests shown below Measure voltage between transformer/primary before the controller locks out.

  • Page 44: Burner Ignites And Burns Steadily Until System Goes Into Lockout

    Troubleshooting Chart No. 4 - Burner ignites and burns steadily until the system goes into lockout. Continued 1. Remove cad cell wires from the ignition controller. 2. Start the burner. 3. Jumper F-F terminals on the ignition controller. Does Replace ignition ignition controller controller.

  • Page 45: Burner Operation Erratic/Unstable Flame Pattern

    Chart No. 5 - Thermostat Run vacuum Is stream of oil Bleed oil from test on suction line to perfectly solid and calling for burner tee bleeder check for air leaks. Did suction continuous with no for ten minutes. line pass vacuum sign of air? heat.
  • Page 46 Fan/Blower and Locations and Temperature Settings - Model RA/RAD 350 Limit Controls • Fan/blower control (135°F) • Automatic limit control (120°F) RA & RAD 350 Limit and fan/blower controls are sub-assembled on a mounting plate. Access control assembly by removing the turning box door.

  • Page 47: Oil Delivery System Troubleshooting

    Troubleshooting Chart No. 7 - Oil Delivery System CAUTION: If the heater will be shut down for a long Continued period, turn off the electric power. Is there sufficient oil Fill oil tank. in the supply tank? Replace or repair. Is there line Check pump motor drive Replace fuel...

  • Page 48: Appendix

    Form I-RA/D 350/500, Page 48...
  • Page 49 147351 REV. #11 Form I-RA/D 350/500, P/N 131090R12, Page 49...
  • Page 50 Form I-RA/D 350/500, Page 50...
  • Page 51 Form I-RA/D 350/500, P/N 131090R12, Page 51...
  • Page 52 Form I-RA/D 350/500, Page 52...
  • Page 53 Form I-RA/D 350/500, P/N 131090R12, Page 53...
  • Page 54 Form I-RA/D 350/500, Page 54...
  • Page 55 Form I-RA/D 350/500, P/N 131090R12, Page 55...
  • Page 56 Form I-RA/D 350/500, Page 56...
  • Page 57 Form I-RA/D 350/500, P/N 131090R12, Page 57...

  • Page 58: Hour Meter / Cleaning Record

    Hour Meter / Cleaning Record Cleaning Date Meter Reading Initials Cleaning Date Meter Reading Initials Form I-RA/D 350/500, Page 58...

  • Page 59: Index

    Index Air Band and Air Shutter Settings 22 Nozzle 31 Air for Combustion 6 Air Shutter and Air Band Settings 22 Oil Burner Troubleshooting 37 Oil Delivery System 47 Backflow Sensor Switch 37 Oil Heat Exchanger 42 Belt Tension 6 Operation 35 Burner 31 Parts Carton 7...
  • Page 60 CAUTION: DO NOT TAMPER WITH THE UNIT OR CONTROLS. CALL YOUR SERVICE PERSON. INSTALLER MUST COMPLETE THE FOLLOWING: Installer: Name ________________________________________________________ Company ________________________________________________________ Address ________________________________________________________ ________________________________________________________ ________________________________________________________ Phone _________________________________ Distributor (company from which the unit was purchased): Company ________________________________________________________ Contact ________________________________________________________ Address ________________________________________________________...

This manual is also suitable for:

Rad 350Ra 500Rad 500

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