Electrical Connections - Pentair MASTERTEMP 125 Installation And User Manual

Section 3. Installation Instructions
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ELECTRICAL CONNECTIONS

This heater is designed to operate at 120 or 240 VAC. It is not recommended to be connected to OR operate on a 208 VAC.
Before making any electrical connections to the power supply, remove the access door panels,
open the control box and plug in the correct plug (120 volt or 240 volt).
The heater ships from the Factory with the 240V plug installed. Installing the 120V plug and then connecting the heater
to 240V line current will immediately destroy the transformer, control board and ignition control module, and will void
warranty. If you install the 240V plug and connect the heater to 120 volts line current, the heater will not operate.
approved AWM low energy stranded) copper wire or it's equivalent.
L1
red
MASTERTEMP ® 125 Pool and Spa Heater Installation and User's Guide
CAUTION
NOTE
CAUTION
L2
green
AC Plug
120 Volt
240 Volt
45
or
Figure 21
Rev. B 8/14