Available in either l.P. Gas vapor withdrawal or natural gas configurations. Models output (btuh) fuel hw120 120,000 congratulations! You have purchased the finest direct fired greenhouse heater available. Your new l.B. White heater incorporates the benefits from the most experienced manufacturer of...
2 warning fire and explosion hazard ■ not for home or recreational vehicle use. ■ installation of this heater in a home or recreational vehicle may result in a fire or explosion. ■ fire or explosions can cause property damage or loss of life. For your safety if you smell gas: 1. Open windows. 2. Don...
This owner's manual includes all options and accessories commonly used on this heater. However, depending on the configuration purchased, some options and accessories may not be included. When calling for technical service assistance, or for other s p e c i f i c i n fo r m a t i o n , a l way s h a...
Specifications hw120 propane natural gas gas maximum input (btuh) 120,000 minimum input (btuh) 65,000 200 cfm 120 sq. In. 64 sq. In. 13.5 11.0 11.0 7.0 5.0 3.1 1.4 0.8 5.56 lbs. 120 cu. Ft. 3.01 lbs. 65 cu. Ft. Ball bearing 1/3 h.P. 1,100 rpm 115/60/1 11.8 4.5 30 3/4 x 21 x 28 1/4 top 1 ft. Sides 1 ...
5 lp gas and natural gas have man-made odorants added specifically for detection of fuel gas leaks. If a gas leak occurs, you should be able to smell the fuel gas. That’s your signal to go into immediate action! ■ do not take any action that could ignite the fuel gas. Do not operate any electrical s...
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 suf...
Installation instructions direct fired heaters discharge combustion by-products with the heated air in to the area being heated. These include co, co 2 , no, no 2 , and ethylene. These gases can result in harm to the worker or the plants. This greenhouse heater has been specifically developed for ve...
-- fur thermore tighten the gas connections as necessary to stop the leak. -- after all connections are checked and any leaks are stopped, turn on the main burner. -- stand clear while the main burner ignites to prevent injury caused from hidden leaks that could cause flashback. -- with the main bur...
9 indoor ventilation requirements this heater requires a properly sized motorized air inlet shutter, flexible duct, and exhaust fan. All items must be installed when the heater is located within the greenhouse. These components, along with specific instructions, are provided in the indoor ventilatio...
Exhaust fan the exhaust fan must be located at an upper area of the end wall opposite from the heater, preferably in an area higher than the heater’s discharge. See fig. 5. The fan does not need to be directly in line to the heater. Ensure the exhaust fan is kept free of blockage. Fig. 5 this heater...
Nipple hose adapter tee nipple cap to gas control valve inlet assemble the tee, nipples and cap together and tighten securely. See fig. 7. The sediment trap assembly must always be mounted in a vertical position. Make sure pipe thread compound that is resistant to both l.P. Gas and natural gas is us...
12 b. Single stage thermostat 1. Operate on first stage heat only. 2. Operate on second stage heat only. C building controller connections - heating (non-power contacts) 1. Operate on first stage heat only. 2. Operate on second stage heat only. Ind l1 hsi hsig l2 w psi fsi gv pso fsg c yellow blue r...
13 manual shut-off valve, hose and regulator assembly regulator nipple valve, manual shut-off gas hose adapter sediment trap to control valve inlet regulator vent gas flo w 1. Always use approved pipe thread compound suitable for use with l.P. Gas or natural gas on the threaded connections. 2. Assem...
For initial start-up after heater installation, follow steps 1-6. For normal start-up, simply set the thermostat above room temperature. 1. Connect electrical cord to an approved electrical outlet. 2. Set thermostat to desired room temperature. 3. This heater has a manually operated toggle style sel...
15 1. Before cleaning, shut off all gas supply valves and disconnect electrical supply. 2. At least once a year give the heater a thorough cleaning, preferably before the beginning of the fall heating season. At that time, remove the fan and motor assembly and brush or blow off the fan wheel. Additi...
1. Remove the motor mounting plate screws and pull the fan and motor assembly from the housing. 2. Loosen the square head set screw(s) on the fan wheel. 3. Pull the fan wheel from the motor shaft. Use a wheel puller if necessary. 4. Remove the four (4) nuts securing the motor to the mounting plate. ...
17 the high limit switch should be tested a minimum of once per year when the heater is given a thorough cleaning. 1. Re m ove t h e h i g h l i m i t s w i t c h f ro m t h e h e a t chamber. 2. Holding the switch by one of its mounting legs or electrical terminals, apply a small flame only to the ...
■ the following explains a typical procedure to be followed in checking gas pressures. ■ consult the dataplate on the heater or page 4 in this manual for specific pressures to be used in conjunction with this procedure. The gas pressures will var y depending upon fuel type. ■ gas pressure measured a...
19 1. Remove the sensor from its mounting bracket. Clean the sensor’s rod with emery cloth or steel wool to buildup of dirt to help maintain proper flame sense. See fig. 17. 2. Check the flame sensor’s insulative base for any cracks. If cracks are found, replace the sensor. Fig. 16 ■ for proper flam...
Troubleshooting instructions read this entire section before beginning to troubleshoot problems. The following troubleshooting guide provides systematic procedures for isolating equipment problems. This guide is intended for use by a qualified gas heater service person. Do not attempt to service the...
21 problem led constant on l ed l ight n ot o n normal operation is pr oper v oltage supplied t o heat er? Is select or switch set t o hea t? Check data plat e f o r electrical supply req uirments. Pr o vide pr oper v oltage, contact electrician. Ye s no ye s ye s ye s def ectiv e wire or electrical...
22 problem led flashing o ne t ime flash pattern begins immediately after condition o ccurs. Is air pr o ving switch stuck closed or shor ted ? Check continuity . Is air flo w switch arm binding in f a n housing? F ree the arm. Det ermine cause of flapper binding. Check f or damage t o fan housing. ...
Two times flash patt ern begins 12 seconds af te r condition occur s. (patt ern indicat es lac k of air pr o ving in fan section of unit.) are air -pr o ving switch contacts stuck open? (p er form continuity check .) does fan mo tor star t up for prepurge during initial call for heat? Is f an wheel ...
24 three times ignition failure heat er does no t light or s ta y lit. Is lp tank full and pr operly sized and are all gas supply v alv es t o heat er open? Fill tank or resize if necessar y. Open all gas supply v alv es ye s no is pr oper gas pressure supplied to heat er? Ye s are 2 4 v olts sent f...
25 problem motor does n ot run is heat er connect ed t o electrical supply? Is select or switch set t o vent? Connect heat er t o electrical supply . Mo v e the select or switch to the vent position. Ye s no ye s ye s is pr oper v oltage supplied fr om select or switch to mo tor? R eplace select or ...
Electrical connection and ladder diagram 26.
27 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. Burner cast iron component used to channel gas and provide an area at which the fuel may ignite. Burner orifice brass metering device used to feed g...
Parts identification parts schematic 28 29 30 37 38 39 21 26 25 22 31 23 24 27 30 28 20 18 19 17 16 15 13 12 6 5 7 9 10 11 4 3 2 1 14 32 33 34 35 36 8.
29 parts identification parts list item description part number 1 regulator, lp gas, 2nd stage, vent over outlet 06553 regulator, lp gas, 2nd stage, vent over side 06665 regulator, natural gas (5 psig inlet, 13.5 outlet) 24414 2 valve, manual shut off with nipple 03399 3 hose, 1/2 in. X 10 ft., rigi...
Contact your local l.B. White dealer for replacement parts and service or call the l.B. White co., inc. At (800) 345-7200 for assistance. Be sure that you have your heater model number and configuration number when calling. Warranty policy replacement parts and service heater parts l.B. White co., i...
