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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 sufficient training and experience to
handle all aspects of gas-fired heater installation,
service and repair.  This includes the task of
installation, troubleshooting, replacement of
defective parts and testing of the heater.  You
must be able to place the heater into a continuing
safe and normal operating condition.  You must
completely familiarize yourself with each model
heater by reading and complying with the safety
instructions, labels, Owner’s Manual, etc., that is
provided with each heater.

b. To be a qualified gas installation person, you must

have sufficient training and experience to handle
all aspects of installing, repairing and altering gas
lines, including selecting and installing the proper
equipment, and selecting proper pipe and tank
size to be used.  This must be done in accordance
with all local, state and national codes as well as
the manufacturer’s requirements.

2.

All installations and applications of L.B. White heaters
must meet all relevant local, state and national
codes.  Included are L.P. gas, natural gas, electrical,
and safety codes.  Your local fuel gas supplier, a local
licensed electrician, the local fire department or
similar government agencies, or your insurance agent
can help you determine code requirements.

Also refer to:

-- ANSI/NFPA 58, latest edition, Standard for

Storage and Handling of Liquefied Petroleum
Gas 

-- ANSI Z223.1/NFPA 54, National Fuel Gas

Code

3.

Adequate ventilation air for combustion must be
provided in accordance with OSHA 29 CFR 1926.154,
Temporary Heating Devices, and ANSI A10.10, Safety
Requirements for Temporary and Portable Space
Heating Devices.

4.

We cannot anticipate every use which may be made
of our heater.  Check with your local fire safety
authority if you have questions about applications.

5.

Other standards govern the use of fuel gases and
heat producing products in specific applications.
Your local authority can advise you about these.

6.

Use only compressed air, soft brush or dry cloth to
clean the interior of the heater and it’s components.

7.

Always use approved pipe thread compound suitable
fo r   u s e   w i t h   p ro p a n e   g a s   o n   t h e   t h r e a d e d
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 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, it must be
replaced prior to the heater being put into operation.
The hose assembly shall be protected building
materials, and contact with hot surfaces during use.
The hose assembly shall be that specified by the
manufacturer.  See parts list.

10.

Check for gas leaks and proper function upon heater
installation or when relocating.  Refer to leak check
instructions within installation section of this manual.

11.

This heater should be inspected for proper operation
by a qualified service person before each use and at
least annually.

12.

Always turn off the gas supply to the heater if the
heater is not going to be used in the heating of the
work space.

13.

If gas flow is interrupted and flame goes out, do not
relight the heater until you are sure that all gas that
may have accumulated has cleaned away.  In any
event, do not relight the heater for at least 5 minutes.

14.

Minimum propane gas supply cylinder size to be used
shall be 100 pounds.  When using a cylinder supply
system, the system must be arranged to provide
vapor withdrawal from the operating cylinder.

15.

W h e n   t h e   h e a te r   i s   to   b e   s to r e d   i n d o o r s ,   t h e
c o n n e c t i o n   b e t we e n   t h e   p ro p a n e   g a s   s u p p l y
cylinder(s) and the heater must be disconnected and
the cylinder(s) removed from the heater and stored in
accordance with the Standard and Handling of
Liquefied Petroleum Gases, ANSI/NFPA 58.

16.

Propane gas supply containers have left handed
threads.  Always use the appropriate wrench to
tighten or loosen the P.O.L. fitting at the propane gas
containers supply valve.  Do not use pliers.

WARNING

Burn Hazard

High surface and discharge temperatures.

D o   n ot   to u c h   t h e   h e a te r   o r   c o m e   w i t h i n   s a fe
clearances given on dataplate.  

Use extreme caution when lighting the heater or
adjusting heat levels.

Failure to follow this warning and come too close to
the heater can result in burns or ignition of clothing.

Burns cause serious injury or death.

6

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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