Electrical Connections; Bonding - Pentair ETi 400 Installation And User Manual

Section 2: Installation Instructions
38

ELECTRICAL CONNECTIONS

Electrical Rating: 60 Hz 120 / 240 Volts AC, single phase
Enclose the incoming AC power line to the heater, in an approved flexible conduit connected directly
to the junction box on the inside of the lower right side of the heater (see Figure 11 on page 18). The
Line Voltage field wiring is 14 gauge, with a circuit capacity of 15 Amps.
The Heater is factory wired for 240 VAC. See page 38 for 240 VAC and 120 VAC wiring.
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.
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 damage the transformer, control board, and will void the warranty. If you install the
240V plug and connect the heater to 120 volts line current, the heater will not operate.
If, while there is line voltage connected to the heater, you touch either line voltage terminal with any 24VAC wire that is
connected to the control board (including the Fireman's Switch jumper), you will immediately destroy the control board
and void the warranty.
Please read the information under IMPORTANT! READ ME FIRST! on pages 43 and 47 before proceeding.
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All wiring must be in accordance with all applicable codes.
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The heater, when installed, must be electrically grounded and bonded in accordance with local codes or, in the
absence of local codes, with the National Electrical Code or the Canadian Electrical Code (as applicable).
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Electrical power circuits to the pool heater must follow local codes and National Electrical Code or Canadian
Electrical Code (as applicable).
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All wiring between the heater and devices not attached to it, or between separate devices which are installed in
the field, must be Type T wire rated for 35°C rise.
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All line voltage wiring shall be enclosed in approved flexible conduit, and shall be securely attached to the field
wiring box located in the lower right side of the water manifold panel (see Figure 11 on page 18). The conduit or
cable connector at the field wiring box should contain an insulating bushing or its equivalent to prevent abrasion of
the wires as they enter the box.
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The filter pump should run continuously when the heater is on, and for at least 15 minutes after the heater
turns off. Any switches in the pump circuit (including circuit breakers) that can disconnect the pump must also
disconnect the heater.

Bonding

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A bonding lug is provided on the heater located on the upper side of the base by the plumbing side
(see page 18). The heater along with the pool system equipment must be bonded together. Using solid copper
conductor not smaller then 8 AWG to reduce voltage gradients in the pool area.
ETi 400 High Efficiency Pool and Spa Heater Installation and User's Guide
CAUTION
CAUTION
CAUTION
Rev. C 4/2017