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1. Read all safety precautions and follow L. B. White

recommendations when installing this heater.  If

during the installation or relocating of heater, you

suspect that a part is damaged or defective, call a

qualified service agency for repair or replacement.

2. Make sure the heater is properly installed before use.

Observe and obey all minimum safe distances of the

heater to the nearest combustible materials.  Safe

distances are given on the heater dataplate and on

page 4 of this manual.

3. The heater is approved for indoor use only.

4. The heater shall not be used with ductwork.

5. The heater’s gas pressure regulator (with pressure

relief valve) must be protected from adverse weather

conditions (rain, ice, snow) as well as from building

materials (tar, concrete, plaster, etc.) which can affect

safe operation and could result in property damage or

injury.

6. Heaters used in the vicinity of combustible tarpaulins,

canvas, plastics, wind barriers, or similar coverings

shall be located at least 10 feet from the coverings.

The coverings shall be securely fastened to prevent

ignition or upsetting of the heater due to wind action

on the covering or other material.

7. Check all connections for gas leaks using approved

gas leak detectors.  Gas leak testing is performed as

follows:  

-- Check all pipe connections, hose connections,

fittings and adapters upstream of the gas

control with approved gas leak detectors.  

-- In the event a gas leak is detected, check the

components involved for cleanliness and

proper application of pipe compound before

further tightening.  

-- Furthermore 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 burner in operation, check all

connections, hose connections, fittings and

joints as well as the gas control valve inlet and

outlet connections with approved gas leak

detectors.  

-- If a leak is detected, check the components

involved for cleanliness in the thread areas

and proper application of pipe compound

before further tightening.  

-- Tighten the gas connection as necessary to

stop the leak.  

-- If necessary, replace the parts or components

involved if the leak cannot be stopped.

-- Ensure all gas leaks have been identified and

repaired before proceeding.

WARNING

Fire aand EExplosion H

Hazard

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1. To avoid dangerous accumulation of fuel gas, turn 

off gas supply at the heater service valve before

starting installation, and perform gas leak test after

completion of installation.

2. Do not force the gas control pilot button.  Use only

your hand to depress the pilot button.  Never use 

any tools.  If the button will not operate by normal

hand pressure the control should be replaced by a

qualified service technician.  Force or attempted

repair may result in fire or explosion.

7

Installation Instructions

GENERAL

WARNING

Fire aand EExplosion H

Hazard

Do not use open flame (matches, torches, candles,

etc.) in checking for gas leaks.  

Use only approved leak detectors.  

Failure to follow this warning can lead to fires or

explosions.

Fires or explosions can lead to property damage,

personal injury or loss of life.

Summary of Contents for Twin Jet 400

Page 1: ...e at 1 800 345 7200 Owner s Manual and Instructions Jet 200 and Twin Jet 400 Circulating Construction Heaters ATTENTION ALL USERS This heater has been tested and evaluated by L B White Co Inc as a dir...

Page 2: ...mage personal 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 Propert...

Page 3: ...o qualified See page 6 for definition of the necessary qualifications Contact your local L B White distributor or the L B White Co Inc for assistance or if you have any questions about the use of the...

Page 4: ...ort Combustion Net Weight lbs Shipping Weight lbs Electrical Supply Volts Hz Phase Amp Draw Dimensions Inches L x W x H Minimum Safe Distances From Nearest Combustible Materials STARTING CONTINUOUS OP...

Page 5: ...can mask fuel gas odor The o odorant i in p propane LP g gas a and n natural g gas i is colorless a and t the i intensity o of i its o odor c can f fade u under some c circumstances If there is an und...

Page 6: ...amage 8 The hose assembly shall be visually inspected on a daily basis after heater relocation and when the heater is in use If it is evident there is excessive abrasion or wear or if the hose is cut...

Page 7: ...ections 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...

Page 8: ...w 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 14 Any defects found in performing any of the service or mai...

Page 9: ...er casting See Fig 7 FIG 7 8 Thread the orifice with control assembly into the inlet of the burner casting so that the tip of the burner orifice is flush with the inside of the burner and so the contr...

Page 10: ...s on the threaded connections 2 Assemble the components together according to the figure This view is to show general assembly of the components only 3 Tighten all connections securely 4 Check a all c...

Page 11: ...et the thermostat on the control panel to a point above room temperature The main burner will light 1 Close the gas supply valve located on the LP gas supply container 2 Allow the heater to burn off a...

Page 12: ...e heater a thorough cleaning At this time remove the fan and motor assembly and brush or blow off the fan blade assembly Additionally make sure the burner air inlet venturi ports and the casting are f...

Page 13: ...then check the following Improper regulator for heater Blockage in gas hose Insufficient size or quantity of LP gas supply containers D COMPLETION 1 Once the proper inlet pressure has been confirmed...

Page 14: ...NAL WIRES AS SUPPLIED WITH THE HEATER MUST BE REPLACED IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 302 F 150 C ELECTRICAL CONNECTION DIAGRAM MOTOR RED GAS CONTROL...

Page 15: ...lean orifice or screen with compressed plugged air replace pilot orifice or screen if necessary Defective pilot control valve Replace pilot control valve Debris plugging up pilot screen Replace pilot...

Page 16: ...nameplate on heater for correct gas pressure 8 Gas solenoid valve chatters Defective solenoid in gas valve Replace solenoid valve Models 326 and 330 Gas pressure too high Check dataplate on heater fo...

Page 17: ...o shut off the flow of gas to the main burner when the pilot flame is extinguished or becomes too small to light the main burner Pilot Tube Formed copper tube used to convey gas from the safety contro...

Page 18: ...18 1 2 3 4 5 7 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 21 23 24 25 26 27 28 29 30 31 32 33 34 35 PARTS IDENTIFICATION PARTS SCHEMATIC...

Page 19: ...90 N A 120 02990 17 Wheel 130 01099 18 Elbow N A 130 01300 N A 130 01300 19 Nipple N A 130 01142 N A 130 01142 20 Valve 130 20229 21 Connector N A 130 04648 N A 130 04648 22 Tube w Nuts N A 500 20406...

Page 20: ...of p purchase b by 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 than th...

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