Service Manual

Glossary of Terms

PV Series

Frozen Exhaust Vent Terminal

If an exhaust vent terminal is blocked with ice or snow due to severe conditions, the pressure switch

and control will not allow the burner to operate. This will result in a three flash error code. Once the blockage is

removed (through melting or other means) the controls will let the burner operate. The position of the vent

terminals in relation to each other and terminals from other appliances can have an effect on the potential for

blockage due to ice or snow. See the installation instructions for recommended positioning of the terminals.

Glossary of Terms

BTU British Thermal Units

GPM Gallons per Minute

Hz Hertz

kWhr Kilowatt Hour

LED Light Emitting Diode

NPT National Pipe Thread

Ohms Ohms of resistance

PSI Pounds per Square Inch

RPM Revolutions per minute

ECO Energy Cut Out

VAC Volts Alternating Current

“ W.C. Inches of Water Column

ºC Degrees Centigrade

ºF Degrees Fahrenheit