Patterson-Kelley P-K STORM ST-5000 Installation & Owner's Manual page 104

ST-5000 & ST-6000 440-480 VAC, Three Phase, 60 Hz
Before making any electrical connections to the boiler, verify that the control transformer is properly
configured for the applicable incoming power supply to the boiler:
Improper configuration of the control transformer could result in serious injury or death.
Revised: December 8, 2021
Released: December 8, 2021

208V, three phase, 60Hz

220-240V, three phase, 60Hz

440-480V, three phase, 60Hz
 Patterson-Kelley 2021
All Rights Reserved.
TM
P-K Storm Gas Fired Boiler
Technical Service 1.877.728.5351
2691000273 P-K Storm ST2500-ST6000
Installation and Owners Manual Rev C.docx
Page 93