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3.3 Electrical Connections
Power Requirements
The PK Storm boilers are manufactured for 208-240 VAC, single phase, 60 hertz electrical service.
The total operating amperage is indicated on the rating nameplate and the appliance requires less than
or equal to 20 Amps at full load. Before starting the boiler, check to ensure that the proper electrical
service is connected to the boiler.
An external electrical disconnect and overload protection (not supplied with the boiler) are required.
Refer to Section 6.1, for proper wiring and configuration of the electrical connections. The electrical
service to the boiler must be installed and grounded in accordance with local codes or in the absence of
such requirements, in the U.S. with National Electrical Codes, ANSI/NFPA No. 70 latest edition or, in
Canada, to the current Canadian Electrical Code, Part I, CSA C22.1 latest edition. Installed conduit
must not block any of the boiler's openings and must allow the front door to be opened.
Single Phase Power Supply Connection
The PK Storm features four dedicated power terminals on the High Voltage (TB2) terminal block for
the 208-240VAC, single phase, and 60 hertz electrical supply. The image below shows the location of
the Low Voltage (TB1) and High Voltage (TB2) terminal blocks:
•
TB2 Terminal 1 = HOT L1
•
TB2 Terminal 2 = HOT L2
•
TB2 Terminal 3 = NEUTRAL
•
TB2 Terminal 4 = GROUND
NOTE: These terminals can accommodate maximum 10 AWG wire.
Revised: October 2, 2019
Released: October 2, 2019
Do not over-tighten the terminal screws.
Patterson-Kelley 2019
All Rights Reserved.
P-K Storm
Technical Service 1.877.728.5351
Maximum tightening torque = 6 in-lbs!
High Voltage Terminal
Block (TB2)
Low Voltage Terminal
Block (TB1)
2691000099 P-K Storm Installation and Owners
TM
Gas Fired Boiler
Manual.docx
Page 14
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