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L.B. White Therma Grow Greenhouse HW220 Owner's Manual And Instructions

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Owner's Manual and Instructions
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 (800) 345-7200.
ATTENTION ALL USERS
This heater has been tested and evaluated by C.S.A. International, in accordance
with Canadian Gas Association Standard for Gas Fired Brooders, CAN 1-2.20-M85.
The heater has been designed, developed, and evaluated 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.
Greenhouse Heaters
Therma Grow
™
View this manual online at www.lbwhite.com
MODELS
OUTPUT (kW)
HW220
64.4
FUEL
Available in either
L.P. Gas Vapor
Withdrawal or
Natural Gas
Configurations.
150-27888 REV.B

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Summary of Contents for L.B. White Therma Grow Greenhouse HW220

  • Page 1 *Requires an app like QR Droid for Android or manufacturer of heating products using state-of-the-art technology. QR Reader for iPhone. 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 (800) 345-7200.
  • Page 3 Save this Owner’s Manual for future use and reference. ■ Owner’s Manuals and replacement labels are available at no charge. For assistance, contact L.B. White at 800-345-7200. WARNING ■ Proper gas supply pressure must be provided to the inlet of the heater.

  • Page 4: Table Of Contents

    This manual will instruct you in the operation and care of The L.B. White Co., Inc. has a policy of continuous product your unit. Have your qualified installer review this manual improvement. It reserves the right to change specifications with you so that you fully understand the heater and how it and design without notice.

  • Page 5: Heater Specifications

    Heater Specifications Model HW220 SPECIFICATIONS Propane Natural Fuel Type Maximum Input (kW) 64.4 Minimum Input (kW) 35.1 EXHAUST FAN 595 m3/hour Indoor Mounting Air Exchange Requirements SHUTTERED AIR INLET 774 sq. cm. Outdoor Mounting Air SHUTTERED 645 sq. cm. Exchange Requirements EXHAUST OUTLET Inlet Gas Supply Pressure MAX.

  • Page 6: Safety Precautions

    Refer to the specification section and installation quarters. instructions of the heater’s Owner’s Manual, heater dataplate, or contact the L.B. White Company to ■ Do not use in areas without proper air exchange. See determine air exchange requirements of the heater.
  • Page 7 12. Always turn off the gas supply to the heater if the 2. All installations and applications of L.B. White heaters heater is not going to be used. must meet all relevant local, state and national codes.

  • Page 8: Installation Instructions

    Fire and Explosion Hazard ■ Do not use open flame (matches, torches, candles, etc.) in checking for gas leaks. 1. Read all safety precautions and follow L.B. White ■ Use only approved leak detectors. recommendations when installing this heater. If ■...

  • Page 9: Air Discharge Diverter Duct

    Do not use the heater in an L.P. gas liquid withdrawal system or application. If you are in doubt, contact the L.B. White Co., Inc. AIR DISCHARGE DIVERTER DUCT Part Number 26025 (Accessory) 1. The air discharge diverter duct provides improved 2.

  • Page 10: Indoor Ventilation Requirements

    INDOOR VENTILATION REQUIREMENTS This heater requires a properly sized motorized air inlet shutter, FIG. 4c Side View 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 HEATER provided in the indoor ventilation kit, part number 25985.

  • Page 11: Exhaust Fan

    Exhaust Fan FIG. 5 The exhaust fan must be located at an upper area of the EXHAUST FAN IN UPPER AREA end wall opposite from the heater, preferably in an area OF GREEN HOUSE higher than the heater’s discharge. See Fig. 5. The fan does not need to be directly in line to the heater.

  • Page 12: Sediment Trap Assembly Instructions

    SEDIMENT TRAP ASSEMBLY Assemble the tee, nipples and cap together and tighten FIG. 8 NIPPLE securely. See Fig. 8. The sediment trap assembly must HOSE ADAPTER always be mounted in a vertical position. Make sure pipe thread compound that is resistant to both L.P. gas and natural gas is used in making all connections.
  • Page 13 B. Single Stage Thermostat C Building Controller Connections - Heating (Non-Power Contacts) 1. Operate on first stage heat only. 1. Operate on first stage heat only. TO CONTROL SINGLE STAGE BUILDING CONTROLLER (HEAT CONTACT) THERMOSTAT FROM CONTROL GREEN YELLOW BLUE GROUND GREEN BLACK...

  • Page 14: Manual Shut-Off Valve, Hose And Regulator Assembly Instructions

    3. Operate both stages of heat. FIRST STAGE HEAT CONTACT SECOND STAGE HEAT CONTACT GREEN GROUND HSIG TRANSFORMER IGNITION CONTROL YELLOW 120V BROWN BROWN GAS CONTROL VALVE BROWN GROUND HIGH LIMIT SWITCH MANUAL SHUT-OFF VALVE, HOSE AND REGULATOR ASSEMBLY 1. Always use approved pipe thread compound suitable FIG.

  • Page 15: Start-Up Instructions

    Start-Up Instructions For initial start-up after heater installation, read steps 1-6. Any flash pattern by the LED indicates an operation For normal start-up, simply set the thermostat above room problem. Refer to the troubleshooting decal adjacent temperature. to the control box for assistance in troubleshooting. Only qualified and properly trained personnel shall Connect electrical cord to an approved electrical service or repair the heater.

  • Page 16: Cleaning Instructions

    L.B. White Co., Inc. Dataplates, start- up and shut-down instructions and warnings are 4. Regulators can wear out and function improperly.

  • Page 17: Service Instructions

    Service Instructions GENERAL 4. The thermostat, and high limt switch can be tested by WARNING jumpering the suspect part out of the electrical Burn Hazard circuit.: ■ Heater surfaces are hot for a period of time after the -- Reconnect the electrical supply and open fuel heater has been shut down.

  • Page 18: Air Proving Switch

    AIR PROVING SWITCH 1. Remove two sheet metal screws holding air proving FIG. 13 NUTS switch blower housing. Remove assembly by turning switch assembly 90 degrees so the switch paddle PADDLE can be pulled through oblong hole on side of fan housing.

  • Page 19: Gas Pressure Checks

    4. If the inlet pressure is correct but the burner manifold up to 8.7 kPa. (may also be ordered pressure does not agree with that specified on the from L.B. White, part number 00764) dataplate, then the HI and LO heat output feature of the gas control valve requires adjustment.

  • Page 20: Igniter And Flame Sensor

    IGNITER 1. Disconnect the plastic male and female plugs located 4. Slide the igniter shield over the igniter so hole in at the end of the igniter leads. See Fig. 17 shield aligns with hole in igniter and bracket. ■ 2.

  • Page 21: Troubleshooting Instructions

    Troubleshooting Instructions OPERATION SEQUENCE: READ THIS ENTIRE SECTION BEFORE BEGINNING TO -- Line voltage is sent to selector switch. TROUBLESHOOT PROBLEMS. -- Selector switch is positioned to HEAT. WARNING -- Line voltage is sent to motor relay and transformer -- Terminal at transformer branches off line voltage to . . ■...

  • Page 27: Electrical Connection And Ladder Diagram

    Electrical Connection and Ladder Diagram 115 Volt Supply...

  • Page 28: 230 Volt Motor

    230 Volt Supply TRANSFORMER...

  • Page 29: Heater Component Function

    Heater Component Function Air Proving Switch High Limit Switch Safety device used to insure that the proper air flow is being Safety device wired into the control system which is used to achieved before the gas valve is opened. break an electrical circuit to the gas control valve in event of overheat situation.

  • Page 30: Parts Identification

    Parts Identification PARTS SCHEMATIC...

  • Page 31: Parts List

    Parts Identification PARTS LIST Item Description Part Number Regulator LP Gas 06553 Natural Gas 24414 Valve, Manual Shut Off with Nipple 03399 Hose, 1/2 x 10 ft., Rigid x Swivel 20714 Adapter, Hose, 1/2 NPT x 1/2 NPS 25873 Kit, Sediment Trap 00815 Screw (2) 572502...

  • Page 32: Warranty Policy

    L B. White. 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., Onalaska, Wisconsin, USA.

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