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105542
DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)
CHDV37N/P(A,B) AND CHDV41N/P(A,B)
BURNER FLAME PATTERN
Burner flames will be steady; not lifting or
floating. Flame patterns will be different
from unit to unit and will vary depending on
installation type and weather conditions.
If the vent configuration is installed incor-
rectly, the flames will lift or "ghost". This
can be dangerous. Inspect the flames after
installation to ensure proper installation and
performance.
Figure 54 shows a typical flame pattern for
CHDV37N(A,B), CHDV37P(A,B),
CHDV41N(A,B), and CHDV41P(A,B)
models.
If burner flame pattern differs from that
described:
• turn fireplace off (see To Turn Off Gas to
Appliance, page 24)
• see Troubleshooting, pages 28 through 30
Figure 54 - Typical Flame Pattern for
CHDV37N/P(A,B) and CHDV41N/P(A,B)
Thermocouple
Thermopile
1/8"
Pilot Burner
Piezo
Ignitor
Figure 53 - Pilot Assembly
INSPECTING
BURNERS
Check pilot flame pattern and burner flame
patterns often.
PILOT ASSEMBLY
The pilot assembly is factory preset for the
proper flame height. Alterations may have
occurred during shipping and handling. Call
a qualified service person to readjust the
pilot if necessary.
The height of the thermopile must be 3/8" to
1/2" above the pilot flame as shown in Figure
53. The thermocouple must be at a height of
about 1/8" above the pilot flame. The flame
from the pilot burner must extend beyond
both the thermocouple and thermopile.
If you pilot assembly does not meet these
requirements:
• turn fireplace off (see To Turn Off Gas to
Appliance, page 24)
• see Troubleshooting, pages 28 through 30
3/8" to 1/2"