Specifications; Wiring Diagram - FMI HDC18NRB Manual

LOGS
• If you remove logs for cleaning, refer to
Installing Logs, page 16, to properly replace
logs.
• Replace log(s) if broken or chipped (dime-
sized or larger).
HDC18PRB
• Rating: 25,000/36,000 Btu/hr
• Gas Type: Propane/LP
• Ignition: Piezo
• Manifold Pressure: 8.0" w.c.
• Inlet Supply Pressure (inches of water):
Maximum - 14" w.c., Minimum - 11" w.c.
f i r e - p a r t s . c o m
HDC24PRB
• Rating: 25,000/36,000 Btu/hr
• Gas Type: Propane/LP
• Ignition: Piezo
• Manifold Pressure: 8.0" w.c.
• Inlet Supply Pressure (inches of water):
Maximum - 14" w.c., Minimum - 11" w.c.
125968-01B
CLEANING AND MAINTENANCE

SPECIFICATIONS

WIRING DIAGRAM

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Continued
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.
HDC18NRB
• Rating: 25,000/36,000 Btu/hr
• Gas Type: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" w.c.
• Inlet Supply Pressure (inches of water):
Maximum - 10.5" w.c., Minimum - 5" w.c.
HDC24NRB
• Rating: 25,000/36,000 Btu/hr
• Gas Type: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" w.c.
• Inlet Supply Pressure (inches of water):
Maximum - 10.5" w.c., Minimum - 5" w.c.
Thermopile
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