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Elston Manufacturing LC series Owner's Manual

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Revision F
Updated 2011
Elston Manufacturing
LC Heater
Owners Manual

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Summary of Contents for Elston Manufacturing LC series

  • Page 1 Revision F Updated 2011 Elston Manufacturing LC Heater Owners Manual...

  • Page 3: Table Of Contents

    Table of Contents Table of Contents Safety Information......................ii 1) Introduction to Heater...........1 2) Operating Instructions..........4 2.1 Operating Precautions....................4 2.2 Running the Heater For the First Time or After the Unit Has Been Idle for a Long Time...........................5 2.3 General Recommendations for Loading and Heating Cargo........6 2.4 Normal Operation......................7 3) Service Instructions............8 3.1 Every Time You Walk By the Heater.................8...

  • Page 4: Safety Information

    Safety Information Safety Information The heater you have purchased was designed, first of all, to be safe. However, since this heater burns propane, safety precautions are necessary for the safe and reliable operation of this product. For your safety, please take the time to read the appropriate sections of this manual before installing, servicing, or operating the heater.

  • Page 5: Introduction To Heater

    Chapter 1 Introduction to Heater Introduction to Heater The LC heater you have purchased is a thermostatically controlled propane heater. It is designed to be mounted on the nose of a trailer to heat cargo. However, it may be used in similar situations where heat is needed.
  • Page 6 Chapter 1 Introduction to Heater Figure 1: Opening the Heater When you look inside the heater you will see the major components shown in Figure 2 below. Figure 2: Inside of LC Heater...
  • Page 7 Chapter 1 Introduction to Heater Mounted at eye level on the trailer, you will see a small gray box with a clear cover, the control box, like that shown in figure 3. When you lift the cover you will see a rocker switch and two indicator lights.

  • Page 8: Operating Instructions

    Chapter 2 Operating Instructions Operating Instructions Please read the important safety information on page ii if you haven’t already done so. This guide assumes the heater has already been installed. For installation instruction please go to chapter 5 (page 15). 2.1 Operating Precautions This heater is designed to heat and provide freeze protection of cargo in trailers and truck bodies.

  • Page 9: Running The Heater For The First Time Or After The Unit Has Been Idle For A Long Time

    Chapter 2 Operating Instructions Do not disconnect power from the running heater except in an emergency. Stopping the heater before it has finished its cooldown cycle will cause it to wear out significantly faster. Wait to use the switch on the side of the heater until the fans have stopped.

  • Page 10: General Recommendations For Loading And Heating Cargo

    Chapter 2 Operating Instructions 2.3 General Recommendations for Loading and Heating Cargo This section contains some general suggestions on loading cargo and setting the thermostat on the heater. However every application is unique so experience will be your best guide. These recommendations assume that the thermostat probe is mounted on a nonmetal surface on the front wall of the trailer about 2 to 3 feet off the floor and the walls and ceiling have at least an inch of insulation.

  • Page 11: Normal Operation

    Chapter 2 Operating Instructions 2.4 Normal Operation 1) Check propane supply Check that the propane tank(s) are securely mounted and contains fuel. Check that the fitting connecting the tank to the gas system is tight. Turn the propane tank valve on. If you smell propane, immediately discontinue operation of the heater until the source of the leak has been found and fixed.

  • Page 12: Service Instructions

    Chapter 3 Service Instructions Service Instructions 3.1 Every Time You Walk By the Heater • Check the exterior of the heater and the exterior gas lines for damage • Check that the handles are in the fully closed position • Check that the heater is not smoking or producing soot (if it is refer to the section on troubleshooting) 3.2 Every Time the Trailer is Loaded and Unloaded •...

  • Page 13: Every Three Years

    Chapter 3 Service Instructions 3.4 Every Three Years In addition to the annual maintenance, • Remove the front spark probe and check it for damage and deposits. It should not be darker than a light gray or have an excessively rounded tip. If the spark probe is damaged or excessively round, it should be replaced.

  • Page 14: Troubleshooting

    If this guide doesn’t fix your problem please contact the company where you purchased the heater. If you are unable to contact them or you need additional help, please contact Elston Manufacturing at 1-800-845-1385. For your safety, the propane should always be turned off when troubleshooting this product except when required to test the function of the heater.

  • Page 15: Problem B: The Green Indicator Light Comes On But The Blower Does Not Run

    Chapter 4 Troubleshooting loosen the hose clamp on the blower and slide it off of the combustion chamber. If the there are no obstructions, the blower should turn freely. If the blower doesn't turn freely, it needs to be replaced. If the heater is running off trailer power, check the fuse supplying power to the trailer.

  • Page 16: Problem C: Blower Runs But Heater Fails To Ignite

    Chapter 4 Troubleshooting Problem C: Blower runs but heater fails to ignite Listen carefully. You should hear a faint clicking noise fifteen to thirty seconds after the blower starts. If you do, then: 1) Check the fuel system, especially that the propane tank(s) contain fuel and valve is open on the tank(s).

  • Page 17: Problem D: Heater Usually Ignites But Sometimes Does Not

    Chapter 4 Troubleshooting Problem D: Heater usually ignites but sometimes does not Check that the valve on the propane cylinder is fully open. Occasionally, a tank will fail to supply enough gas to the heater unless the valve is fully open. Is any extra ductwork connected to the exhaust or air inlets or outlets? Yes.
  • Page 18 Chapter 4 Troubleshooting 2) Check if the heater is running off the 110V standby. Check that none of the inlets or outlets to the heater are blocked or any ductwork is damaged. The voltage at the thermostat should be approximately 12V when the heater is running with the 110V standby plugged in.

  • Page 19: Installation

    Chapter 5 Installation Installation Improper installation of this heater creates a substantial safety hazard including the risk of property damage, fire, and/or death. Compliance with local regulation is the responsibility of the installer. Current regulations in your area may require that the installer of this heater or, more likely, that the installer of the propane system fueling this heater meet certain requirements and/or that the completed installation be inspected.

  • Page 20: Unpacking The Heater And Gathering Supplies

    Chapter 5 Installation instruction designed to maximize the working life of the product, simplify installation, or improve the appearance of the installed product. 5.2 Unpacking the Heater and Gathering Supplies Parts Needed for Installation shipped with Heater: • Recirculating Style LC Heater •...

  • Page 21: Mounting

    Chapter 5 Installation A: Mount the heater about ¾ of the way up on the front of the trailer (see previous paragraph) B: Mount in a position there is enough clearance to open the door of the heater C: 6ft distance cargo should stand off from hot air outlet.

  • Page 22: Wiring

    Chapter 5 Installation tinnerman-style clips and the thermostat “wire” should be attached to the front wall with clips to prevent damage from vibration. 5.5 Wiring Before you begin wiring, check that the power switch to the heater is off and the trailer has no power.

  • Page 23: Fuel System

    Install the propane tank or propane tank carrier, such as the X-1025 or X-1050, following the instructions included with product. Installation instruction are available for all tanks purchased from Elston Manufacturing. If your tank or tank carrier does not have instruction, contact the manufacturer for guidance and refer to the installation code that applies in your area.
  • Page 24 Chapter 5 Installation 3) Install all hoses and fittings Attach all fittings to the regulators, heater, and the tanks. The POL fitting attached to the tank must have a built-in excess flow valve. All fittings including bulkheads must have wrench flat or similar way that each fitting can be individually tightened or loosened (close nipples are not allowed).
  • Page 25 Chapter 5 Installation 5.6.2 Installation Instructions for Series 32A Laydown Tank with H-LC-S32I Installation Kit These instructions are intended for general guidance only. Consult the current regulations in your area or the latest standards, NFPA 58 for the United States or CAN/CGA 149.2 for Canada, for exact requirements. Before you begin mounting any components, it is recommended that you determine the approximate mounting location of all components to ensure that all parts can be connected with the available lengths of hose and tubing.

  • Page 26: Final Details

    Chapter 5 Installation meet either the specification for either ASTM B 88 (Type K or L) or ASTM B ● 280. In Canada installations, the tubing must additionally be marked and plastic or rubber coated in accordance with CAN/CSA-B149.5-05. Have no joints and can not be extended in any way ●...

  • Page 27: Repair

    Chapter 6 Repair Repair 6.1 Performing a Full Adjustment of the Burner Tools required: Phillips screwdriver, two needlenose or similar pliers, wrench set , socket set (optional), pipe dope or sealant 1) Turn off power and gas to the heater. 2) Remove the cover to the combustion chamber by removing the four nuts holding 3) Remove the gas fittings attached to the burner.

  • Page 28: Checking That The Regulator Is Producing The Correct Pressure

    Chapter 6 Repair 6.3 Checking that the Regulator is Producing the Correct Pressure Tools required: Low pressure gas gauge with a dial in inches of water column, set of wrenches 1) Turn off gas and power to the heater. 2) If necessary, add fittings to allow the gauge to read the gas pressure in the line between the regulator and the heater while it is hooked up to the heater.
  • Page 29 Chapter 6 Repair 6. Loosen and remove the four bolts attaching the heater shell to the combustion chamber located on the bottom of the heater as shown in Figure 11. 7. Carefully lift out and remove the combustion chamber from the heater by pulling out the top of the combustion until it clears the top edge of the heater shell as shown...

  • Page 31: Parts List For Hlc Heaters

    Chapter 7 Parts List for HLC Heaters Parts List for HLC Heaters HLC-1 and HLC-110......................A1 Recirculating Heater with Steel Shell HLC-1B and HLC-110B....................A2 Recirculating Heater with Aluminum Shell HLC-1V and HLC-1V......................A3 Vented Heater with Steel Shell HLC-1VB and HLC-110VB.....................A4 Vented Heater with Aluminum Shell Inside of Recirculating Heater..................A5 Inside of Vented Heater....................A6 Stainless Steel Combustion Chamber Assembly (HLC-600-700)........A7...
  • Page 33 Parts List for HLC Heaters H-LC-1A and H-LC-110A See Page A5 for Parts Inside Heater Label Name Part # Label Name Quan. Steel Heater Shell HLC-130RS 3/4” 1/4”-20 SS Hex Head Bolt Steel Door w/ Hinge HLC-132S 1/4”x1” SS Washer Door Latch HLC-139 1/4”...
  • Page 34 Parts List for HLC Heaters H-LC-1B and H-LC-110B See Page A5 for Parts Inside Heater Label Name Part # Label Name Quan. Aluminum Heater Shell HLC-130RAL 3/4” 1/4”-20 SS Hex Head Bolt Aluminum Door w/ Hinge HLC-132AL 1/4”x1” SS Washer Door Latch HLC-139 1/4”...
  • Page 35 Parts List for HLC Heaters H-LC-1VA and H-LC-110VA See Page A6 for Parts Inside Heater Label Name Part # Label Name Quan. Vented Steel Heater Shell HLC-130VS 3/4” 1/4”-20 SS Hex Head Bolt Steel Cover w/ Hinge HLC-132S 1/4”x1” SS Washer Door Latch HLC-139 1/4”...
  • Page 36 Parts List for HLC Heaters H-LC-1VB and H-LC-110VB See Page A6 for Parts Inside Heater Label Name Part # Label Name Quan. Aluminum Heater Shell HLC-130VAL 3/4” 1/4”-20 SS Hex Head Bolt Aluminum Door w/ Hinge HLC-132AL 1/4”x1” SS Washer Door Latch HLC-139 1/4”...

  • Page 37: Inside Of Recirculating Heater

    Parts List for HLC Heaters Inside of Recirculating Heater Shell Label Name Part # Label Name Quan. Stainless Steel Combustion HLC-600-700 3/4” 1/4”-20 Hex Head Bolt Chamber Assembly (See A7) 1/4” Lock Washer Electrical Tray Assembly HLC-900 1/4” Washer (See A9) 1/2”...

  • Page 38: Inside Of Vented Heater

    Parts List for HLC Heaters Inside of Vented Heater Shell Label Name Part # Label Name Quan. Stainless Steel Combustion HLC-600-700 3/4” 1/4”-20 Hex Head Bolt Chamber Assembly (See A7) 1/4” Lock Washer Electrical Tray Assembly HLC-900 1/4” Washer (See A9) 1/2”...
  • Page 39 Parts List for HLC Heaters Combustion Chamber Assembly Label Name Quan. 1/4-20 SS Hex Nut Label Name Part # 1/4” SS Lock Washer Combustion Chamber HLC-700 1/4” SS Fender Washer Burner Assembly HLC-600 3/4” 1/4-20 SS Hex Bolt High Limit Switch HLC-420 #6 SS Lock Washer 1/2”...
  • Page 40 Parts List for HLC Heaters Blower Assemblies Blower Assembly - Recirculating Style Label Name Quan. 1/2” #6-32 SS Machine Screw #6 SS Lock Washer Label Name Part # Blower HLC-803 Sail Switch Mounting Brkt HLC-212 Sail Switch HLC-227 1-3,A,B Blower Assembly - HLC-800 Recirculating Style Blower Assembly - Vented Style...

  • Page 41: Electrical Tray Assembly (Hlc-900)

    Parts List for HLC Heaters Gas Valve and Electrical Tray Assemblies Gas Valve Assembly Label Name Quan. 1/4” SAE 45 Male Connector 1/4” - 1/8” Bushing 1/4” NPT Hex Nipple Label Name Part # Gas Orifice Fitting HC-413HLC Gas Valve HLC-229 Brass Bulkhead Fitting HLC-218...

  • Page 42: Control Box (Hlc-3)

    Parts List for HLC Heaters Control Box and 110V Standby Control Box Label Name Part # Circuit Breaker (behind plate) HLC-418 Green Indicator Light HLC-425 Amber Indicator Light HLC-426 Rocker Switch HLC-415 Electrical Mounting Plate Control Box Electrical HLC-422 Assembly Enclosure HLC-428 (plastic pin holds latch,...
  • Page 45 Elston Manufacturing Inc. or an authorized service center freight paid by buyer. After confirmation by Elston Manufacturing, Inc. that a defect does exist in the product that is covered under this Limited Warranty then Elston Manufacturing, Inc. shall, in its sole and absolute discretion, either repair, modify or replace the product(s) and return the product(s) to the owner freight paid by Elston Manufacturing, Inc.
  • Page 46 ELSTON MANUFACTURING INC. 706 N Weber Sioux Falls, SD 57103 www.elstonmfg.com 1-800-845-1385...

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