P-K MACH
®
Gas Fired Boiler
Technical Service 1.877.728.5351
Revised: January 3, 2020
Released: January 3, 2020
Patterson-Kelley 2020
All Rights Reserved.
1004905981 P-K MACH C1500H-C4000 Installation and
Owners Manual (Rev F Jan-2020).docx
Page 86
7.2.6 Control Transformer
– Power Box (C-3000 & C-4000 Only)
Figure 7.2.4a C-3000 & C-4000: 208 VAC, three phase, 60 hertz:
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:
•
208V, three phase, 60Hz
•
220-240V, three phase, 60Hz
•
440-480V, three phase, 60Hz
Improper configuration of the
control transformer could
result
in serious injury or death.
