Patterson-Kelley P-K STORM ST-5000 Installation & Owner's Manual page 31

Do not over-tighten the hot lead terminal screws. Maximum tightening torque = 13 in-lbs!
NOTE: The hot lead terminals can accommodate maximum 10AWG wire. The ground terminal can
accommodate maximum 8AWG wire.
Revised: December 8, 2021
Released: December 8, 2021
High Voltage
Terminal Block
(TB2)
Low Voltage
Terminal Block
(TB1)
Main Power
Connection
 Patterson-Kelley 2021
All Rights Reserved.
TM
P-K Storm Gas Fired Boiler
Technical Service 1.877.728.5351
Control
Transformer
2691000273 P-K Storm ST2500-ST6000
Installation and Owners Manual Rev C.docx
Page 20