background image

22

Pr

ob

le

m

 22

In

ne

r

C

om

bu

st

io

n

C

on

e L

Li

gh

ts

,

bu

t ww

ill

 nn

ot

S

ta

y L

Li

t

Did y

ou 

Allo

w Suf

ficient Time 

for the Thermocouple 

to

 W

arm Up?

Is 

the Gas Hose 

Par

tially 

Plugged?

Allo

w 30 - 60

Seconds W

arm-Up

Bef

ore R

eleasing

Pilo

t Butt

on.

R

emo

ve

 the Com

ponent and

Clean It.

Ye

s

No

Ye

s

Ye

s

Ye

s

Is

Thermocouple 

W

eak or 

Def

ectiv

e?

A.

Check Thermofuse in Thermocouple f

or

Continuity

.  If Thermofuse is “Open”,

R

eplace Thermocouple.

B.

If Thermofuse is Good, Check Milliv

olt

Output of Thermocouple with Milliv

olt

Test Kit.  Output Should be at Least 4 m

v D.C.  A R

eading of Less Than 4 m

v

D.C. Can Cause Inner Cone  t

o Go Out.

If Thermocouple is W

eak, R

eplace it.

Is Saf

ety 

Contr

ol V

alv

Def

ectiv

e?

Is Primar

y Orif

ice

Plugged?

R

emo

ve

 Orif

ice and Clean It.

Check Gas Pressure t

o the

Heat

er Inlet with a Gas Gauge.

Pr

oper Pressure at High Heat

Should R

ead 5 PSIG. Lo

w Heat

is 1

0

 in. W

.C.

No

No

No

Is Thermo-

couple Contact N

ut

Tight

ened Securely int

o

Gas Contr

ol 

Valv

e?

Snug Contact N

ut in

Place.  (Do No

t

Ov

er

tight

en.)  Check f

or

Debris Betw

een Contact

of Thermocouple and Electr

omagnet of V

alv

e.

Ye

s

No

Is 

Thermocouple Tip Positioned Pr

operly 

int

o Flame?

Position Edge of

Thermocouple t

o be

1/2 - 9/1

6 in. abo

ve

Heat

er’s Housing.

Ye

s

No

Is Butt

on

on Saf

ety Contr

ol

Valv

e F

ully

Depressed?

Depress the Butt

on on the

Pilo

t Saf

ety V

alv

e until Gas

Flo

ws Thr

ough.

Ye

s

No

Check Dr

op-Out of Electr

omagnet in Saf

ety

Contr

ol V

alv

e with the Milliv

olt T

est Kit.  The

Valv

e Magnet Should Dr

op Out at 2.0 m

v D.C.

If the Magnet Dr

ops Out abo

ve

 2.0 m

v D.C.,

R

eplace the Saf

ety Contr

ol V

alv

e.

Ye

s

Is Pr

oper Gas

Pressure Supplied t

o

the Heat

er?

No

Summary of Contents for 140

Page 1: ...ts you may have call us toll free at 800 345 7200 Owner s Manual and Instructions Modulating Infraconic Agricultural Building Radiant Heaters ATTENTION ALL USERS This heater has been tested and evalua...

Page 2: ...or paper products feathers straw and dust Do not use the heater in spaces which contain or may contain volatile or airborne combustibles Volatile or airborne combustibles include gasoline solvents pa...

Page 3: ...tributor or the L B White Co Inc for assistance or if you have any questions about the use of the heater or its application The L B White Co Inc has a policy of continuous product improvement It reser...

Page 4: ...ock From Point of Combustion Cone to Floor 4 5 ft 40 CFH 10 12 in W C 468 CFM 5 PSIG 1 There are other factors that will affect the quantity of animals each heater can cover These include building ven...

Page 5: ...ea before you return Properly trained service people must repair the leak check for further leakages and then relight the heater for you Some p people c cannot s smell w well S Some p people c cannot...

Page 6: ...r 4 The components on the heater that call for hand operation should work with hand pressure only If more force is required have a qualified gas heater service agency replace the complete part Do not...

Page 7: ...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...

Page 8: ...ke time to understand how to operate and maintain the heater using the owner s manual Make sure you know how to shut off the gas supply to the building and to the individual heaters Contact your gas s...

Page 9: ...CONTROL INLET TIGHTEN SECURELY 9 BUSHING RIGID END OF HOSE TO GAS SUPPLY VALVE SHUT OFF CONNECT HOSETO CONTROLVALVE INLET TIGHTEN SECURELY STANDARD HOSE Your heater is supplied with one of the follow...

Page 10: ...sure regulator installed upstream of the inlet of the zone control panel This regulator may be purchased from the L B White Co as an optional accessory For L P gas the regulator must be capable of han...

Page 11: ...e desired temperature The heater will cycle from low heat to high heat based upon thermostatic head set point FIG 8 INDICATOR 100 F 38 C THERMOSTATIC HEAD 11 Start Up Instructions To reduce temperatur...

Page 12: ...k out any loosened dust through combustion cones 4 Repeat Steps 2 and 3 until the cones and the venturi tube are no longer emitting dust 5 Inspect the cones and venturi tube to make sure these areas a...

Page 13: ...ube B B F FI IL LT TE ER R A During continued use Remove filter and shake off dust Do not squeeze or tap filter while filter is installed on heater Doing so will cause dust to be blown into venturi tu...

Page 14: ...rly Have your gas supplier check the date codes on all regulators installed and check delivery pressures to the appliance to make sure that the regulator is suitable for continued use 4 Regulators mus...

Page 15: ...of the valve body 3 Pull the control assembly with adapter and adapter nut from the valve body See Fig 13 4 Using a 3 16 in nut driver remove the orifice from valve body See Fig 14 Clean it if necessa...

Page 16: ...Modulating Zone Panels ATTENTION The following service instructions are the same on individual control or zone control heaters The head assembly includes the adjustable thermostatic head capillary and...

Page 17: ...ire adjustment after significant operation time if it is observed the pressure valve of a heater opens at a slower or faster rate than other heaters within a zone The opening point of the pressure val...

Page 18: ...replacement thermocouple Position as shown in Fig 22 6 Position the thermalfuse under the retaining clip and tighten the screw 7 Install the thermocouple Angle the thermocouple tip to allow passage th...

Page 19: ...d to its maximum setting and light the heater C Reading P Pressures 1 With the heater operating at full heat output and at minimum heat the pressure gauge should read the pressure specified on the dat...

Page 20: ...hecking inlet pressures to the heaters INITIAL PREPARATION Inspect heater for damage Clean heater as necessary Heater P Problems Page 1 Inner Combustion Cone will not Light 21 2 Inner Combustion Cone...

Page 21: ...sed air Yes No Yes Yes Yes Is the Inner Combustion Cone Plugged Is There Air or a Blockage in the Gas Hose or Gas Piping Remove Blockage with Compressed Air or Replace the Gas Hose or Pipe Section Ble...

Page 22: ...Plugged Remove Orifice and Clean It Check Gas Pressure to the Heater Inlet with a Gas Gauge Proper Pressure at High Heat Should Read 5 PSIG Low Heat is 10 in W C No No No Is Thermo couple Contact Nut...

Page 23: ...rifice Plugged Remove Orifice and Clean It Yes No A Remove Thermostatic Head from Thermostatic Valve Body If Outer Cone Lights Replace Thermostatic Head and Sensor Assembly OR B If Outer Combustion Co...

Page 24: ...s Pressure Proper Pressure at High Heat Should Read 5 PSIG Yes No No Problem 5 5 Heater D D oes N N ot Return B B ack t t o Low H H eat Does Main Burner Shut Off When Thermostatic Head is Set Below Ro...

Page 25: ...en the handle on the manual valve is turned parallel to gas flow the valve is completely open delivering full gas supply to the appliance Turning handle perpendicular 90 to gas flow shuts off gas flow...

Page 26: ...Parts Identification PARTS SCHEMATIC 24 35 34 36 37 33 32 27 26 25 29A 28 31 38 18 15 5 4 11 3 6 9 16 2 7 1 2 29B 29C INDIVIDUAL CONTROL 34A 34B 26...

Page 27: ...Modulating Propane Gas 09748 Natural Gas 09749 28 Sleeve Adapter 09682 29 Kit Combustion Cones and Gasket 24214 Consisting of 29A Gasket 09560 29B Inner Cone 09557 29C Outer Cone 24543 31 Screw 10 32...

Page 28: ...e 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 than...

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