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120044-01D
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2. Inspect burner, pilot and primary air inlet
holes on injector holder for dust and dirt
(see Figure 34).
3. Blow air through the ports/slots and holes
in the burner.
4. Check the injector holder located at the 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. Blow air into the primary air holes on the
injector holder.
Figure 34 - Injector Holder On Outlet
Burner Tube
Burner
Tube
Injector Holder
Primary Air
Inlet Holes
Ports/Slots
Figure 35 - Pilot Inlet Air Hole (Your pilot
may vary from pilot shown)
Pilot Air
Inlet Hole
Pilot Assembly
6. In case any large clumps of dust have now
been pushed into the burner repeat steps
3 and 4.
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 2" from where the pilot flame comes
out of the pilot assembly (see Figure 35). 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.
LOGS
• If you remove logs for cleaning, refer to
Installing Logs
, page 17, to properly replace
logs.
• Replace log(s) if broken or chipped (dime-
sized or larger).
MAIN BURNER
Periodically inspect all burner flame holes with
the heater running. All slotted burner flame
holes should be open with yellow flame pres
-
ent. All round burner flame holes should be
open with a small blue flame present. Some
burner flame holes may become blocked by
debris or rust, with no flame present. If so,
turn off heater and let cool. Remove blockage,
blocked burner flame holes will create soot.
CLEANING AND MAINTENANCE
Continued
SPECIFICATIONS
CRB3624NR
• Rating (Variable): 25,000/36,000 Btu/Hr
• Type Gas: Natural
• Ignition: Electronic
• Manifold Pressure: 3.4" W.C.
• Inlet Gas Pressure (in. of water):
Max - 10.5" W.C., Min - 5" W.C.*
WIRING DIAGRAM
Blue
Red
White
Thermopile
Gas Control
TPTH
TH
TPTH TP
CRB3624PR
• Rating (Variable): 25,000/36,000 Btu/Hr
• Type Gas: Propane/LP
• Ignition: Electronic
• Manifold Pressure: 7.9" W.C.
• Inlet Gas Pressure (in. of water):
Max - 14" W.C., Min - 11" W.C.*
*For purpose of input adjustment
