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HDL18PRA
• 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.
HDL24PRA
• 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.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
f i r e - p a r t s . c o m
• for propane/LP units, propane/LP gas sup-
ply may be low
You may feel your gas pressure is too low. If
so, contact your local propane/LP or natural
gas supplier.
125002-01D
SPECIFICATIONS
HDL18NRA
• Rating: 25,000/36,000 Btu/hr
• Gas Type: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" w.c.
• Inlet Supply Pressure (inches of water):
HDL24NRA
• Rating: 25,000/36,000 Btu/hr
• Gas Type: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" w.c.
• Inlet Supply Pressure (inches of water):
You may have further questions about
installation, operation or troubleshooting.
If so, contact FMI PRODUCTS, LLC at
1-866-328-4537. When calling please have
your model and serial numbers of your
heater ready.
You can also visit our web site at
www.fmiproducts.com.
www.fmiproducts.com
Maximum - 10.5" w.c., Minimum - 5" w.c.
Maximum - 10.5" w.c., Minimum - 5" w.c.
TECHNICAL SERVICE
23
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