P-K SOLIS™
Gas Fired Boiler
Technical Service 1.877.728.5351
Revised: March 15, 2021
Released: March 15, 2021
Patterson-Kelley 2021
All Rights Reserved.
2701000090 P-K SOLIS NURO Installation and
Owners Manual (Rev A).docx
Page 14
3.3 Electrical Connections
Power Requirements (SL-1500 & SL-2000)
The SL-1500 & SL-2000 boilers are manufactured for 208-240 VAC,
single phase
, 60 hertz electrical
service. The total operating amperage is indicated on the rating nameplate require less than 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
6.2
, 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 (SL-1500 & SL-2000)
The SL-1500 and SL-2000 models feature 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 with the back
door hidden for clarity:
•
TB2 Terminal 1 = HOT L1
•
TB2 Terminal 2 = HOT L2
•
TB2 Terminal 3 = NEUTRAL
•
TB2 Terminal 4 = GROUND
Low Voltage (TB1) Terminal Block
High Voltage (TB2) Terminal Block