2
WARNING: Read the Installation & Operating Instructions before using this appliance.
IMPORTANT: Read all instructions and warnings carefully before starting installation.
Failure to follow these instructions may result in possible injury to persons or a fire
hazard and will void the warranty.
TABLE OF CONTENTS
WRONG FUEL SHUT DOWN SYSTEM
This heater is equipped with a pressure activated dual circuit that will not allow the main burner to
ignite if the incorrect fuel is installed. Inlet gas pressures, listed on page 2 of this Owner's Manual,
must be correct for this system to work reliably. Excessive NG inlet gas pressure will activate the
"wrong fuel shut down system" and the heater will not light.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
• for propane/LP units, propane/LP gas supply may be low
You may feel your gas pressure is too low. If so, contact your local natural or propane/LP gas supplier.
Input Rating
30,000 BTU/Hr
30,000 BTU/Hr
Gas Type
Natural
LP/Propane
Natural
LP/Propane
Ignition
Electronic Piezo Electronic Piezo Electronic Piezo Electronic Piezo
Manifold Pressure 4.5 in. W.C.
10 in. W.C.
4.5 in. W.C.
10 in. W.C.
Inlet Gas Pressure *For purposes of input adjustment
Maximum
7 in. W.C.
14 in. W.C.
7 in. W.C.
14 in. W.C.
Minimum*
5.5 in. W.C.
11 in. W.C.
5.5 in. W.C.
11 in. W.C.
Specifications ................................................................................................................................... 2
Important Safety Information ............................................................................................................3
Product Identification ........................................................................................................................ 5
Product Features .............................................................................................................................. 6
Preparing for Installation................................................................................................................... 7
Installation ...................................................................................................................................... 10
Unpacking....................................................................................................................................... 15
Log Assembly ................................................................................................................................. 21
Operation ........................................................................................................................................ 22
Care and Maintenance ................................................................................................................... 25
Troubleshooting .............................................................................................................................. 27
Replacement Parts ......................................................................................................................... 30
Warranty ......................................................................................................................................... 31
ITEM
VFL-CO18DT
VFL-CO24DT
VFL-MD18DT
VFL-MD24DT
Summary of Contents for VFL-CO18DT
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