Patterson-Kelley P-K STORM ST-5000 Installation & Owner's Manual page 65

™
The P-K Storm boilers are equipped with a combination gas/air control and gas safety shut off control
valve. The "zero governor" gas valve responds to the variable speed combustion blower in order to
supply the correct air/gas ratio for optimum performance and efficiency.
NOTICE! For high altitude adjustments (greater than 2,000 feet above sea level), see
– Boiler Altitude Derate Schedule
Revised: December 8, 2021
Released: December 8, 2021
at the end of this manual.
 Patterson-Kelley 2021
All Rights Reserved.
TM
P-K Storm Gas Fired Boiler
Technical Service 1.877.728.5351
Appendix B
2691000273 P-K Storm ST2500-ST6000
Installation and Owners Manual Rev C.docx
Page 54