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Available in either

L.P. Gas Vapor

Withdrawal or

Natural Gas

Configurations.

MODELS

OUTPUT 

(Btuh)

FUEL

HD120

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 heating products using state-of-the-art technology.

We, at L.B. White, 

thank you

for your confidence in our products and 

welcome any suggestions or comments you may have...call us, toll-free, 
at 1-800-345-7200.

Owner's Manual and Instructions

GreenGro Plus

Greenhouse Heaters

ATTENTION ALL USERS

This heater has been tested and evaluated by C.S.A. International, in accordance
with IAS U.S. Requirements for Gas-Fired Greenhouse Heaters, for use as a direct
gas-fired circulating heater for the heating of greenhouses.  If you are considering
using this product for any application other than its intended use, then please
contact your fuel gas supplier, or the L.B. White Co., Inc.

150-23487-A

Summary of Contents for FUEL HD120

Page 1: ...idence in our products and welcome any suggestions or comments you may have call us toll free at 1 800 345 7200 Owner s Manual and Instructions GreenGro Plus Greenhouse Heaters ATTENTION ALL USERS Thi...

Page 2: ......

Page 3: ...nal injury or loss of life 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 o...

Page 4: ...nce or if you have any questions about the use of the equipment or its application The L B White Co Inc has a policy of continuous product improvement It reserves the right to change specifications an...

Page 5: ...et and exhaust outlet do not open when heating is required HD120 Propane Natural Gas Gas M Mo od de el l Indoor Mounting Air Exchange Requirements 1 Burner Manifold Pressure In W C Net Weight lbs Ship...

Page 6: ...ans leading to serious injury or death Symptoms of carbon monoxide poisoning can include headaches dizziness and difficulty in breathing Asphyxiation H Hazard Some p people c cannot s smell w well S S...

Page 7: ...high limit switch and an air proving switch Never operate this heater with any safety device that has been bypassed Do not operate this heater unless all of these features are fully functioning 6 Do n...

Page 8: ...mber 23578 4 The heater must have the proper gas regulator installed for the application A regulator must be connected to the gas supply so that gas pressure at the inlet to the gas valve is regulated...

Page 9: ...Manual Make sure you know how to shut off the gas supply to the building and also to the individual heater Contact your fuel gas supplier if you have any questions 17 Any defects found in performing...

Page 10: ...chain hanging kit part number 08748 Refer to the following instructions and illustrations 1 Assemble eyebolts and chain according to the illustration and tighten all eyebolts securely See Fig 2 FIG 2...

Page 11: ...THERMOSTAT GROUND BROWN RED RED YELLOW YELLOW WHITE BLACK WHITE BLACK GREEN 8 9 10 HI LO YELLOW BLUE RED NIPPLE HOSE ADAPTER TEE NIPPLE CAP TO GAS CONTROL...

Page 12: ...ctrical connection jumper between relays in building control to allow staging transition of gas control valve D Heat V Vent B Building C Control C Connections Using N Non P Powered C Contacts Remove j...

Page 13: ...er at terminals 1 and 2 Remove black leads at terminals 3 and 4 to selector switch Remove white leads at terminal 6 to selector switch Add neutral s of control contacts at terminal 5 HEAT MODE Add con...

Page 14: ...4 The direct spark ignition DSI control board within this heater is self diagnostic The board works in conjunction with a light emitting diode L E D built into the selector switch The L E D will flash...

Page 15: ...Periodic cleaning and inspection as well as proper maintenance are essential to avoid serious injury or property damage 1 The area surrounding the heater shall be kept clear and free from combustible...

Page 16: ...on FIG 9 AIR PROVING SWITCH Service Instructions 1 Close the fuel supply valve to the heater and disconnect the heater s electrical supply before servicing unless it is necessary to have the valve ope...

Page 17: ...R AND FLAME SENSOR BLOWER OUTLET OF HEATER AIR PROVING SWITCH ARM OF FLAPPER AIR PROVING SWITCH ARM FANWHEEL PIVOT POINT OF FLAPPER EDGE OF FLAPPER PIVOT POINT OF FLAPPER FLAPPER 31 7 MMTO 34 9 MM 1 E...

Page 18: ...om the switch which indicates the contacts of the switch have opened Check for lack of electrical continuity across the switch terminals to verify contacts have opened 5 Allow the switch cool down for...

Page 19: ...let pressure gauges agree with that specified on the dataplate If so then no further checking or adjustment is required Proceed to section D 3 If the inlet pressures do not agree with that specified o...

Page 20: ...s Page A Motor Does Not Run 24 B Motor Hums Does Not Run 24 Components should be replaced only after each step has been completed and replacement is suggested in the flow chart Refer to the Servicing...

Page 21: ...Are 24 Volts Supplied from Transformer No No No No No Yes Is Proper Voltage Supplied to Transformer No Yes Yes No See One Time Flash L E D Light is Defective Replace Ignition Control Check Dataplate...

Page 22: ...ns Yes Repair Air Proving Switch One T T ime Flash P P attern Begins Immediately After C C ondition Occurs Is Air Proving Switch Stuck Closed Check Continuity Is Airflow Switch Binding Repair Yes Yes...

Page 23: ...Proving Switch No Is Fan Loose On Motor Shaft Yes Tighten Fan Blade Set Screw Is Proper Voltage Supplied to Fan Motor No Yes Defective Motor or Capacitor Replace Motor or Capacitor Is Ignition Module...

Page 24: ...curs T T he Module H H as Gone i i nto S S afety Lockout Is Proper Fuel Supplied to Heater Inlet Connect Proper Fuel Supply to Heater Open All Gas Shutoff Valves Yes No Is Proper Gas Pressure Supplied...

Page 25: ...onnections Verify Proper Voltage with a Voltage Tester Contact a Qualified electrician if Proper voltage is not Present No No Yes Is Proper Voltage Supplied to Selector Switch from Power Cord No VENTI...

Page 26: ...TER MALFUNCTION CHECK FOR PROPER OPERATION AFTER SERVICING WARNING THIS HEATER MAY START AT ANY TIME FAN MOTOR TRANSFORMER AIR PROVING SWITCH BLUE BLUE HIGH VOLTAGE IGNITION LEAD IGNITER FLAME SENSOR...

Page 27: ...lexible connector used to convey gas from supply line in building to heater Heat Chamber Metal fire box within the heater that provides an area where burner flame mixes with combustion air thereby pro...

Page 28: ......

Page 29: ...Switch High Limit 05566 18 Chamber Heat 23566 19 Case Assembly with Doors and Latches 2 20465 20 Latch Assembly 20959 21 Harness Wiring 23534 22 Control Ignition 22461 23 Transformer 120 24 v 81218 2...

Page 30: ...date o of p purchase by t the e end u user Warranty is automatic if a component is found defective within 12 months of the date code marked on the part If the defect occurs more than 12 months later t...

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