1 0
THERMOSTAT CONTROL
OPERATION
The thermostat control knob can be
set to any comfort level between HI
and LO. The thermostat will gradually
modulate the heat output and flame
height from higher to lower settings,
or pilot, in order to maintain the
comfort level you select. The ideal
comfort setting will vary by household
depending upon the amount of space
to be heated, the output of the
central heating system, etc.
Note
: Selecting the HI setting with the
control knob will cause the burners
t o r e m a i n f u l l y o n , w i t h o u t
modulating down in most cases.
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 5 under
Lighting Instructions
, page 9.
2 . P ress c o ntro l kn o b an d ligh t
pilot with match.
3. Keep control knob pressed in
fo r 3 0 sec on d s after lig htin g
pilot. After 30 seconds, release
control knob.
OPERATING HEATER
Continued
INSPECTING BURNERS
C h e c k p i l o t f l a m e p a t t e r n a n d
burner flame patterns often.
PILOT FLAME PATTERN
Figure 13 shows a correct pilot flame
pattern. Figure 14 shows an incorrect pilot
flame pattern. The incorrect pilot flame is
not touching the 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 14:
l
t u r n h e a t e r o f f ( s e e
To Tu r n
Off Gas to Appliance
, page 9)
l
s ee
Tr o u b le s h o o tin g
( p ag es 11
through 12).
BURNER FLAME PATTERN
Figure 15 shows a correct burner flame
pattern. Figure 16 shows an incorrect
burner flame pattern. If burner flame pat-
tern is incorrect:
l
turn heater off (see To Turn
O ff G as to A p p lia n c e, p a g e 9 )
l
see
Troubleshooting
, pages 11
through 12
CLEANING AND MAINTENANCE
WARNING:
Turn off heater and
let cool before cleaning.
C A U T IO N :
Yo u m u st k ee p
c o n t r o l a r e a s , b u r n e r , a n d
c irc u latin g air p assag ew ays o f
h e a t e r c l e a n . I n s p e c t t h e s e
a r e a s o f h e a t e r b e f o r e e a c h
u s e . H a v e h e a t e r i n s p e c t e d
yearly by a qualified service person.
H e a t e r m a y n e e d m o r e
f r e q u e n t c l e a n i n g d u e t o
e xc es sive lin t f ro m c ar p e tin g ,
b ed ding m aterial, p et h air, etc .
CLEANING ODS/IGNITOR AND
BURNER
Clean with a vacuum cleaner.
CLEANING MAIN AIR INLET HOLE
We recommend that you clean the unit
every three months or after 2500 hours
of operation. We also recommend that
you keep the burner tube and pilot as-
sembly clean and free of dust and
dirt. To clean these parts we recom-
mend using compressed air no greater
than 30 PSI. You can use a vacuum
c lea n e r in t h e b lo w p o sitio n . If
u s in g c o m p res sed air in a c a n ,
please follow the directions on the
can. If you don't follow d irections
on the can, you could damage the
pilot assembly.
1. Shut off the unit, including the
pilot. Allow the unit to cool for
a t l e a s t t h i r t y m i n u t e s .
2 . I n s p e c t b u r n e r , p i l o t a n d
p r i m a r y a i r i n l e t h o l e s o n
injector holder for dust and dirt
(see figure 17).
3 . B l o w a i r t h r o u g h t h e
ports/slots and holes in the
burner.
4. Check the injector holder
loc ated at th e end of the
burner tube again. Remove
any large particles of dust, dirt,
lint, or pet hair with a soft cloth
or vacuum cleaner nozzle.
5 . B lo w air in to th e p rim ary air
holes on the injector holder.
6 . In c ase an y larg e c lum p s o f
d u s t h a v e b e e n p u s h e d
into the burner, repeat steps 3
and 4.