Owner's Manual and Instructions Tradesman 400 and Tradesman 400 Ultra Construction Heaters MODELS OUTPUT (Btuh) CP400 400,000 FUEL Propane Vapor Withdrawal Certification by: Congratulations! You have purchased the finest portable forced air construction heater available. Your new L.B. White heater incorporates the benefits from the most experienced manufacturer of heating products using state-of-the-art technology. We, at L.B.
GENERAL HAZARD WARNING ■ Failure to comply with the precautions and instructions provided with this heater, can result in: — Death — Serious bodily injury or burns — Property damage or loss from fire or explosion — Asphyxiation due to lack of adequate air supply or carbon monoxide poisoning — Electrical shock ■ Read this Owner’s Manual before installing or using this product. ■ Only properly-trained service people should repair or install this heater. ■ Save this Owner’s Manual for future use and reference.
Table of Contents SECTION PAGE General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Heater Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Specifications SPECIFICATIONS Model CP400 Fuel Type Propane Gas Maximum / Minimum Input (BTUH) 400,000/250,000 Burner Manifold Pressure (PSI) Inlet Gas Supply Pressure Acceptable at the Gas Connection (PSI) 5.2 MAX. 5.2 MIN. 5.2 18.5 Fuel Consumption Per Hour (lbs.) Sleeve Bearing Motor Characteristics 1/5 H.P., 3,300 RPM Electrical Supply (Volts/Hz/Phase) Amp Draw 115/60/1 STARTING 4.0 CONTINUOUS OPERATION 1.
Safety Precautions WARNING Asphyxiation Hazard ■ Do not use this heater for heating human living ■ Lack of proper ventilation air will lead to improper quarters. combustion. ■ Do not use in unventilated areas. ■ The flow of combustion and ventilation air must not be obstructed. ■ Improper combustion can lead to carbon monoxide poisoning leading to serious injury or death. Symptoms of carbon monoxide poisoning can include headaches, dizziness and difficulty in breathing.
1. Do not attempt to install, repair, or service this heater or the gas supply line unless you have continuing expert training and knowledge of gas heaters. Qualifications for service and installation of this equipment are as follows: a. To be a qualified gas heater service person, you must have sufficient training and experience to handle all aspects of gas-fired heater installation, service and repair.
Installation and Assembly Instructions GENERAL -- Check all pipe connections, hose connections, fittings and adapters upstream of the gas control with approved gas leak detectors. WARNING Fire and Explosion Hazard Can cause property damage, severe injury or death -- In the event a gas leak is detected, check the components involved for cleanliness and proper application of pipe compound before further tightening.
13. The heater must be installed so as not to interfere with or obstruct normal exits, emergency exits, doors and walkways. 14. Railing, fencing or suitable substitute materials must be used to keep the heating equipment from any people using and visiting the structure. 15 . Eventually, like all electrical/mechanical devices, the thermostat can fail. Thermostat failure may result in an underheating condition.
HOSE AND REGULATOR ASSEMBLY 1. Thread rigid end of hose into gas inlet of heater. Tighten securely. See Fig.2. FIG. 2 2. Thread hose adapter to regulator outlet and tighten securely. Connect end of hose with nut to hose adapter. Tighten hose nut securely. See Fig 3. FIG. 3 CONNECTING PROPANE REGULATOR TO PROPANE GAS TANK 1. At the inlet of the regulator is a male nut and stem called a POL. Remove the cap from the POL but do not discard it. Insert POL stem into the valve on the tank.
Start-Up Instructions 1. Connect the heater’s electrical cord to an approved electrical outlet. 2. Open the gas supply valve. For LP heaters, this is located on the tank. 3. Set thermostat on heater to a setting above room temperature. The heater will start and the burner will ignite. ■ It is normal for air to be trapped in gas hose on new installations. You may need to recycle the heater before air is finally purged from the line and ignition takes place. 4.
Cleaning Instructions WARNING Fire, Burn, and Explosion Hazard ■ This heater contains electrical and mechanical components in the gas management, and safety systems. ■ Such components may become inoperative or fail due to dust, dirt, wear and aging. ■ Periodic cleaning and inspection as well as proper maintenance are essential to avoid serious injury or property damage. 1. Before cleaning, shut off all gas supply valves and disconnect electrical supply. 2.
Service Instructions GENERAL WARNING Burn Hazard ■ Some heater surfaces are hot for a period of time after the heater has been shut down. ■ Allow the heater to cool before performing service, 4. Remove the fan guard and motor/fan assembly for access to upper barrel components. 5. The auto reset backflash, and thermostat can be tested by disconnecting the leads at the component, and placing a jumper connecting the leads together.: maintenance, or cleaning.
AUTO RESET BACKFLASH SWITCH To replace the switch, remove the screws, spacers and nuts holding the switch to the burner plate. See Fig. 8 and 9.. FIG. 8 NUTS AND SPACERS TESTING The switch should be tested annually. 1. Remove the switch assembly. Apply a small,soft flame to the sensing disk of the switch. See Fig. 10. Be careful not to melt the switch’s plastic housing when conducting this test. 2. Within a short time, you should hear the contacts of the switch opening. 3. Allow the switch to cool.
IGNITER MAINTENANCE 1. 2. .FIG. FIG. 13 Using a small wire brush, reach down the barrel of the heater and brush the igniter electrode. Ensure buildup is removed. NUT Test the igniter. With the gas supply shut off, turn the heater on. If there is not a spark, or a weak spark is evident, either check the gap of the igniter electrode or replace the igniter. Gap should be 3/16 in. See Fig.12. If a spark jumps between the electrodes, the igniter is functioning properly. IGNITER CABLE 12 3/16 in. FIG.
THERMOSTAT 1. Open the clip holding the thermostat bulb to the motor mount. 2. Remove knob and thermostat mounting screws. 3. Guide the thermostat bulb through the bushing. 4. Remove thermostat from heater FIG. 18 CLIP BUSHING SCREWS IGNITION CONTROL 1. Disconnect the LED wire harness from the circuit board, if applicable. 2. Disconnect the ignition cable and remove the nuts securing the control to the side of the heater’s base.. See Fig.19. 3.
GAS PRESSURE CHECKS ■ The following explains a typical procedure to be FIG. 21 followed in checking gas pressures. ■ The gas pressures will vary depending upon fuel type. ■ Consult the dataplate on the heater or page 4 in this manual for specific pressures to be used in conjunction with this procedure. ■ Gas pressure measured at the gas control valve will verify proper inlet and burner manifold pressures. A. Preparation 1. Obtain a pressure gauge capable of reading up to minimum 10 PSIG. 2.
Troubleshooting Information READ THIS ENTIRE SECTION BEFORE BEGINNING TO TROUBLESHOOT PROBLEMS. WARNING ■ This heater can start at any time. ■ Troubleshooting this system may require operating the unit with voltage present and gas on. Be careful when working on the heater. ■ Failure to follow this warning may result in property damage, personal injury or death. The following troubleshooting guide provides systematic procedures for isolating equipment problems.
18 LED light not on Problem Set thermostat above room temperature. No Is thermostat set above room temperature? No Does fan motor run? Red Light Constant On No Is proper voltage supplied to heater power cord? No Does thermostat receive proper voltage from power cord? Does heater light? Yes Yes Check extension cords and circuit breakers. Repair extension cord, reset breaker, or call qualified electrician.
19 One Time Air proving switch contacts are closed before fan motor starts. \. LED Flashing Problem Is air proving switch shorted? (Check continuity on air proving switch in open and closed positions). No Is air proving switch stuck closed? Check continuity. Yes Yes If air proving switch is jumered, remove jumper and retest. If switch exhibits short, replace the switch. Replace air proving switch No Is air proving switch Yes Repair.
Problem Two Times Indicates lack of air proving in fan section (Flash pattern begins within 90 seconds after condition Occurs). 20 Yes Defective motor Defective Yes ignition control. Check circuit breakers, and any extension cords if used.Contact a qualified electrician No Is proper voltage supplied to heater power cord? No Is ignition control receiving proper voltage? No Is proper voltage supplied to motor from ignition control? No Does fan motor run? Yes Defective air proving switch.
21 Five Times Rapid On/Off cycling of the burner. Four Times Three Times Indicates ignition failure.The ignition control is in safety lockout.. Problem No Is proper voltage supplied to gas valve? No Does gas solenoid valve open? Yes Connect proper gas supply to heater. Open all gas shutoff valves. No Yes Flame sense related problems. Check for cracked or dirty flame sensor, improperly positioned sensor, or poor flame sense ground.
22 Fan Motor Does Not Run, Heater Does Not Light. Problem Defective Ignition Control. No Is voltage supplied to air proving switch from the ignition control? Yes Provide proper voltage to heater. Check breajer and extension cords. No Yes Set thermostat above room temperature No Is thermostat set above room temperature? Are air proving switch contacts stuck closed? Is proper voltage Yes supplied to heater? Yes Check power cord and electrical supply.
23 Fan Runs, Heater Does Not Light. Problem Yes Defective valve. Yes Yes Yes Connect High Voltage Lead No Is high voltage lead securely connected to ignition control and ignitor? No Yes Yes Yes Yes Reposition igniter. (See Service Instructions) No Isi ignitor gap positioned toward burner orifice? Determine if ignitor receives high voltage: -- Disconnect ignition lead from ignition control. -- Position a screwdriver tip about 3/16 inch away from ignition control where lead was connected .
24 Heater lights bt will Not stay lit. Problem Connect high voltage lead? No Is high voltage lead securely connected? No Is ignitor cracked? Ensure all grounds are connected. No Is the heater properly grounded? Yes Yes Yes Yes Provide proper gas supply pressure to heater. Refer to dataplate. If LP gas is used, ensure LP container is full. No Is proper gas Yes pressure supplied to heater? Defective ignition control. Repalce ignitor. Connect proper gas supply to heater.
Electrical Connection and Ladder Diagrams TRADESMAN 400 25 TRADESMAN 400 ULTRA
Heater Component Function Air Proving Switch Safety device used to insure that the proper air flow is being achieved before the gas valve is opened. Gas Hose Flexible connector used to convey gas from supply line in building to heater. Back Flash Switch Safety device wired into the control system which is used to break an electrical circuit to the gas control valve in event of overheat situation.
Parts Identification PARTS SCHEMATIC 27
Parts Identification PARTS LIST Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Description Regulator with POL Hose, fixed X swivel, 3/8 in. x 10 ft. Adaptor, hose, 3/8 in.
Warranty Policy EQUIPMENT L.B. White Co., Inc. warrants that the component parts of its heater are free from defects in material and workmanship, when properly installed, operated, and maintained in accordance with the Owner’s Manual safety guides and labels contained with each unit. If, within 12 months from the date of purchase by the end user, any component is found to be defective, L.B. White Co., Inc. will at its option, repair or replace the defective part or heater, with a new part or heater, F.O.B.