Procom ML300TGA User Manual

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

 

  turn  heater  off  (see  To  Turn  Off

Gas To Appliance on  page 12  for
non-thermostat  model  or  page

        11  for  thermostat  model)

      see  Troubleshooting  on pages  14

         through 16

 

Use    a      vacuum    cleaner,

pressurized  air  or  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
p a r t s     w e     r e c o m m e n d     u s i n g
compressed  air  no  greater  than
30  PSl.
Your  local  computer  store,  hardware
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 directions
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.
Clean  the  pilot  assembly  also.  A
yellow  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  pilot  flame  comes  out  of
the  pilot  assembly  (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.

     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 on  page
12  for non-thermostat model or

      page 11 for thermostat model)

 

 see  Troubleshooting  on  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.  Inspect
these  areas  of  heater   before  each
use. Have  heater  Inspected  yearly  by
a  qualified  service  person.  Heater may
need  more  frequent  cleaning due to
excessive  lint from carpeting,  bedding
material,  pet  hair, etc.

    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.