TABLE OF CONTENTS
Specifications ................................................................................................................................... 2
Product Identification ........................................................................................................................ 5
Product Features .............................................................................................................................. 6
Unpacking......................................................................................................................................... 6
Preparing for Installation................................................................................................................... 7
Installation ...................................................................................................................................... 10
Operation ........................................................................................................................................ 19
Care and Maintenance ................................................................................................................... 21
Troubleshooting .............................................................................................................................. 23
Replacement Parts ......................................................................................................................... 26
Accessories .................................................................................................................................... 27
Warranty ......................................................................................................................................... 29
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.
Model
Input Rating
Gas Type
Manifold Pressure
Max. Inlet Pressure
Min. Inlet Pressure
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.
VFS-PH20DT
20,000 BTU/Hr
LP
NG
10'' WC
4.5'' WC
14'' WC
7'' WC
11'' WC
5.5'' WC
2
VFS-PH30DT
30,000 BTU/Hr
LP
NG
10'' WC
4.5'' WC
14'' WC
7'' WC
11'' WC
5.5'' WC