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1 3

Figure 21 - Correct  Pilot  Flame
Pattern

Figure 22 - Incorrect  Pilot  Flame
Pattern

BURNER  FLAME  PATTERN

Figure  23  shows a  correct   burner
flame  pattern.  Figure 24  shows  an
incorrect  burner   flame  pattern.  If
burner flame   pattern   is   incorrect,
as shown  in  Figure 24.

  turn  heater  off  (see  To  Turn  Off

Gas To Appliance. page 12 for non-
thermostat    models    or    page

        11  for  thermostat  models)

!

     see  Troubleshooting. (pages  14

        through 16)

CLEANING ODS/PILOT AND
BURNER

Use    a      vacuum    cleaner,

pressurized  air  or a  small,  soft

        bristled  brush  to  clean.

CLEANING   BURNER
PILOT  AIR  INLET  HOLE

We  recommend   that  you  clean  the
unit  every  2,500  hours  of  operation or
every    three    months.    We    also
recommend  that  you  keep  the  burner
tube  and  pilot  assembly  clean and
free  of  dust  and  dirt.  To  clean  these
parts  we   recommend  using   com-
pressed  air  no  greater  than   30  PSl.
Your  local  computer  store,  hard-
ware store.  or  home  center  may
carry compressed  air  in  a  can.  You
can use a  vacuum  cleaner  in  the
blow position.  If  using  compressed
air  in a  can,  please  follow  the direc-
tions on  the can. If  you don’t  follow
directions  on  the  can,  you could
damage  the  pilot  assembly.
1.      Shut  off   the  unit,  including  the

pilot.  Allow  the  unit  to  cool  for

         at  least  thirty  minutes.
2.     Inspect  burner,  pilot  for  dust
         and  dirt.
3.       Blow  air  through  the  ports/slots
         and  holes  in  the  burner.
Also, clean  the  pilot  assembly.   A yel-
low  tip  on  the  pilot  flame   indicates
dust  and  dirt  in  the  pilot assembly.
There  is  a  small  pilot  air inlet  hole
about  two  inches  from where  the  pi-
lot  flame  comes  out  of the  pilot  as-
sembly  (see  Figure 25). With  the  unit
off, lightly blow air through  the  air inlet
hole. You may blow  through  a drinking
straw if  compressed air is not available.

Figure 25  - Pilot  Inlet  Air  Hole

CLEANING  HEATER  CABINET
Air  Passageways

!

     Use     a      vacuum     cleaner    or

        pressurized  air  to  clean.

Exterior

!

     Use  a  soft  cloth  dampened  with

        a  mild  soap  and  water  mixture.
        Wipe  the  cabinet  to  remove dust.

Check      pilot      flame    pattern    and
burner  flame  pattern  often.

PILOT  FLAME  PATTERN

Figure  21  shows  a  correct  pilot
flame  pattern.  Figure  22 shows  an
incorrect  pilot   flame  pattern.  The
incorrect  pilot  flame  is  not  touching
thermocouple. This  will  cause  the
thermocouple   to  cool.  When  the
thermocouple  cools, the heater will
shut down. If pilot  flame pattern is
incorrect, as  shown  in  Figure 22.

turn  heater off  (see  To  Turn

Off  Gas  To  Appliance.  page  12
for  non-thermostat  models  or

       page 11  for thermostat models.)

 see  Troubleshooting.  pages  14

        through 16.

WARNING: 

  Turn  off  heater

and  let  cool  before  servicing.

  CAUTION: 

 You  must keep  control

areas,    burner,    and    circulating    air
passageways    of  heater    clean.    In-
spect these  areas  of  heater   before
each    use.  Have    heater    inspected
yearly  by  a  qualified  service  person.
Heater may  need  more  frequent  clean-
ing due to  excessive  lint from carpeting,
bedding  material,  pet  hair, etc.

CLEANING AND

MAINTENANCE

WARNING:

   If   yellow   tipping

o c c u r s ,   y o u r   h e a t e r   c o u l d
produce  increased    levels  of
c a r b o n   m o n o x i d e .   I f   b u r n e r
flame      pattern    shows    yellow
tipping,    follow    instructions  at
bottom  of   this  page.

Notice:

  Do  not  mistake  orange

flames  with  yellow  tipping.  Dirt
or  other  fine  particles  enter  the
heater  and  burn  causing  brief
patches  of  orange  flame.

Figure 24  - Incorrect Burner
Flame  Pattern

Figure 23  - Correct  Burner  Flame
Pattern

INSPECTING  BURNER

Содержание HB20ML-1

Страница 1: ...ust be performed by a qualified installer service agency or gas supplier HB20TL 1 HB30TL 1 HB20ML 1 HB30ML 1 Table of Contents ImportantSafetyInformation 2 Product Features 3 ProperVentilation FreshAi...

Страница 2: ...e of heater becomes very hot when running heater Keep children and adults away from hot surface to avoid burns or clothing ignition Heater will remain hot for a time after shuting down Allow surface t...

Страница 3: ...tion Inc Batterymarch Park Quincy MA 02269 QUALIFIED INSTALLING AGENCY Installation and replacement of gas piping gas utiliza tion equipment or accessories and repair and servicing of equipment shall...

Страница 4: ...of the methods described in the National Fuel Gas Code ANS Z223 1 Section 5 3 or applicable local codes Unusually Tight Construction The air that leaks around doors and windows may provide enough fre...

Страница 5: ...uel burning appliances in the space Vent free heater Btu Hr Gas water heater Btu Hr Gas furnace Btu Hr Vented gas heater Btu Hr Gas Fireplace logs Btu Hr Other gas appliances Btu Hr Total Btu Hr Do no...

Страница 6: ...pment shutoff valve ground joint union test gauge connection sediment trap tee joint pipe wrench A CSA AGA design certified equip ment shutoff valve with 1 8 NPT tap is an acceptable alternative to te...

Страница 7: ...s near bottom corners of lower front panel 2 Pull bottom of lower front panel forward then down see Figure 7 Methods For Attaching Mounting Bracket To Wall Only use last hole on each end of mounting b...

Страница 8: ...mounting bracket onto wall Line up last hole on each end of bracket with wall anchors 6 Insert mounting screws through bracket and into wall anchors 7 Tighten screws until mounting bracket is firmly f...

Страница 9: ...re regulator with wrench when connecting it to gas piping and or fittings CAUTION Use pipe joint sealant that is resistant to liquid petroleum LP gas Figure 14 Gas Connection The installer must supply...

Страница 10: ...ve to control valve see Figure 16 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 5 Correct all leaks at once 6 Light heater see Operating Heater pages 10 and 11 for t...

Страница 11: ...ounterclockwise to desired heating Level The main burner should light Set control knob to any heat level between HI and LO This increases or decreases the burner flame height At times the room may exc...

Страница 12: ...near the floor If you smell gas STOP Follow B in the safety information on the side of heater If you can t smell gas go to the next step 5 Push in and turn control knob counterclockwise to PILOT posit...

Страница 13: ...sembly see Figure 25 With the unit off lightly blow air through the air inlet hole You may blow through a drinking straw if compressed air is not available Figure 25 Pilot Inlet Air Hole CLEANING HEA...

Страница 14: ...ff valve is not fully open 4 Thermocouple connection loose at control valve 5 Pilot flame is not touching thermocouple This allows thermocouple to cool causing pilot flame to go out This problem could...

Страница 15: ...ile heating or contracting while cooling 1 When heated vapors from furniture polish wax carpet cleaners etc turn into white powder residue REMEDY 1 Clean burner orifice see Cleaning and Maintenance pa...

Страница 16: ...ctions Page 10 2 Replace control valve 1 Take apart gas tubing and remove foreign matter 2 Locate and correct all leaks see Checking Gas Connections Page 10 1 This is common with most heaters if noise...

Страница 17: ...optional fan kit part HAB01 fits all models noted in this manual The fan has 3 settings ON OFF Auto The thermostatically controlled HAB01mproves heater efficiency and includes installation and operat...

Страница 18: ...1 8 ILLUSTRATED PARTS BREAKDOWN THERMOSTAT MODELS HB20TL HB30TL...

Страница 19: ...ass Retainer Lower Glass Retainer Self Tapping Screw Thermostat Valve Assembly Screws Thermostat Valve Base Ignitor Assembly Ignitor Line Pressure Regulator Washer Self Locking Screw Main Inlet Tube A...

Страница 20: ...2 0 ILLUSTRATED PARTS BREAKDOWN NON THERMOSTAT MODELS HB20ML HB30ML...

Страница 21: ...g Screw Control Valve Ignitor Line Control Knob Assembly Control Valve Fixed Nut Pressure Regulator Washer Self Locking Screw Main Inlet Tube Assembly ODS Line Assembly Lower Gas Outline Tube Assembly...

Страница 22: ...2 2...

Страница 23: ......

Страница 24: ......

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