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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.

Position heater properly before use.  The heater must
be installed on a level, flat, horizontal and stable
surface when hot or in operation and according to
minimum clearances from combustible surfaces such
as walls, floor or ceilings.  Do not place combustible
materials within this zone of clearance.  Minimum
safe distances are as follows:

Top to Ceiling

5 ft. 10 in.

All Sides

4 ft.

Gas Supply

6 ft.

3.

L.P Gas Installation Requirements

Ensure all L.P. gas containers are secured and
protected from people, vehicular traf fic and
contact.

L.P. gas containers must be located on a flat,level,
and stable surface.

L.P. gas cylinders (100 lb. cylinders/tanks) must be
secured from tip-over.

Contact your local authorities, L.P. gas dealers, or fire
marshalls for specifics dealing with installation in your
area.

4.

Position the heater and its gas supply hose so as to
protect heater and its gas supply hose from traffic.
Protect hoses with a shielding device of suitable
nature to protect the hose from traffic and movement
or other construction equipment.

5.

The heater is approved for indoor use only.  The
heater shall be installed so it is not directly exposed to
water spray, rain, and /or dripping water.

6.

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.

7.

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.

8.

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.  

WARNING

Fire or explosion hazard.

Can cause property damage, severe injury or death.

1. To avoid dangerous accumulation of fuel gas, turn off

the 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 button.  Use only normal

hand pressure to depress the 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 and Explosion 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 Workman CV225

Page 1: ...5 7200 Owner s Manual and Instructions Workman Convection Construction Heaters ATTENTION ALL USERS This heater has been tested and evaluated by C S A International in accordance with Standard ANSI Z83 7 CSA 2 14 and is listed and approved as a direct fired vertical convection construction heater for use on combustible floors This heater is intended for use as a portable temporary heater for buildi...

Page 2: ...o property damage 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 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 t...

Page 3: ...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 equipment or its application The L B White Co Inc has a policy of continuous product improvement It reserves the right to change specifications and design without notice SECTION PAGE General Information 3 Heater Spec...

Page 4: ...CATIONS CV225 Propane Gas Model Dimensions Inches L x W x H Minimum Safe Distances From Nearest Combustible Materials Fuel Consumption Per Hour Lbs hour Inlet Gas Supply Pressure Acceptable at the Gas Connection of the Heater PSIG MAX MIN 4 Heater Specifications Fuel Burner Manifold Pressure PSIG 10 MAX MIN MAX MIN ...

Page 5: ...iness and difficulty in breathing Asphyxiation Hazard Some people cannot smell well Some people cannot smell the odor of the man made chemical added to propane or natural gas You must determine if you can smell the odorant in these fuel gases Learn to recognize the odor of propane gas and natural gas Local propane gas dealers and your local natural gas supplier utility will be more than happy to g...

Page 6: ...brush or dry cloth to clean the interior of the heater and it s components 7 Always use approved pipe thread compound suitable for use with propane gas on the threaded connections 8 Do not block air intakes or discharge outlets of the heater Doing so may cause improper combustion or damage to heater components leading to property damage 9 The hose assembly shall be visually inspected on a daily ba...

Page 7: ...rings shall be securely fastened to prevent ignition or upsetting of the heater due to wind action on the covering or other material 8 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 ...

Page 8: ...te for the gas configuration of the specific heater Do not use the heater in an propane liquid withdrawal system or application If you are in doubt contact the L B White Co Inc 13 Take time to understand how to operate and maintain the heater by using this Owner s 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 suppli...

Page 9: ... Once the burner is lit the variable rate valve can be positioned to any setting from minimum to maximum heat See Fig 5 FIG 5 Shut Down Instructions 1 Close all fuel gas supply valves 2 Allow the heater to burn off any fuel gas remaining in the gas supply line 3 Position the variable rate valve to its minimum heat position 4 Disconnect the heater from its gas supply SET VARIABLE RATE VALVE TO MINI...

Page 10: ...s start up and shut down instructions and warnings are available at no cost 1 Before cleaning close all gas supply valves 2 The heater should have dirt or dust removed periodically a Before each use give the heater a general cleaning using compressed air a soft brush or dry rag on its case and internal components b At least once a year give the heater a thorough cleaning At this time remove the ca...

Page 11: ...proper operation and check for gas leaks 7 Clean the heater s orifice manifold with compressed air or a soft dry rag Do not use files drills etc which may enlarge the holes causing combustion problems or burner flame extending outside of the case barrel Replace the manifold if its holes cannot be cleaned properly WARNING Burn Hazard Heater surfaces are hot for a period of time after the heater has...

Page 12: ...ded when a spark is not observed at the electrode when pushing the igniter button This may happen with hard use over a long period of time or due to dust and dirt accumulation If you do not see a spark being generated at the electrode check the following areas A Igniter 1 Remove the wire from the push button igniter 2 Position a screwdriver tip about 1 8 in from igniter See Fig 9 3 Holding the scr...

Page 13: ...ng the pressure gauge should read the pressure specified on the dataplate or in the specification section of this owner s manual 2 Does the pressure reading agree with that given on the dataplate If so no further checking or adjustment is required Proceed to section D 3 If the pressures does not agree with that specified on the dataplate then check the following Improper regulator for heater Regul...

Page 14: ...edy for same cause in Problem 1 stay lit when safety control button is released Insufficient time allowed for Hold in control button for 30 seconds to allow proper thermocouple to heat up warm up Loose thermocouple Tighten thermocouple at gas control Make sure it is securely pushed into its bracket Tighten finger tight and snug the contact nut with an appropriate wrench Defective thermocouple Repl...

Page 15: ...on is pushed This voltage is sent to electrode to provide spark REGULATOR The heart of any gas supply installation Used to deliver a working pressure to the appliance under varying conditions in tank pressure SAFETY CONTROL VALVE A gas control valve which is held open by electrical power supplied by the thermocouple and which closes automatically to shut off the flow of gas to the main burner when...

Page 16: ...16 Parts Identification Parts Schematic ...

Page 17: ...ting 23463 2 Hose 1 4 in 10 ft 20706 3 Valve Safety Control 572506 4 Nut Jam 572587 5 Valve Variable Rate 572507 6 Orifice Manifold 572508 7 Igniter Piezo 570434 8 Thermocouple 571030 9 Electrode 572509 10 Burner Assembly 572504 11 Barrel w Top 572505 12 Base 572510 ...

Page 18: ...te of purchase by the end 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 the date code but within 12 months from the date of purchase by the end user a copy of a bill of sale will be required to establish warranty qualification The warranty set forth above is the exclusive warrant...

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