Pentair ETi 400 Quick Start Guide

ETi® 400

HIGH EFFICIENCY HEATER

QUICK REFERENCE GUIDE

• Control Pad Overview

• Regular Maintenance

• Installation Requirements........2

• Frequently Asked Questions.....3

...............

1 1

oint

187˚F (86˚C)

Thermal Fuses Activate

170˚F (77˚C)

SFS Activates

150˚F (66˚C)

Heating Pool

140˚F (60˚C)

Heating Spa

CONTROL PANEL OVERVIEW

Digital Display

Set P Controls

• POOL ON: Press button to base heater operation on Pool Temperature. LED indicates heater is responding to Pool Temperature set point.

• SPA ON: Press button to base heater operation on Spa Temperature. LED indicates heater is responding to Spa Temperature set point.

• HEATER OFF: Press button to switch o󰀨 the heater.

• HEATING LED: Illuminates when burner is active. Blinking LED indicates heater is

calling for heat but not ring. If LED remains illuminated, but burner fails to activate,

one of the Service LEDs will illuminate and indicate a system fault.

• SERVICE SYSTEM LED: Indicates insu󰀩cient water ow through heater. Ensure lter and skimmers are clean. If LED remains illuminated, switch OFF heater and contact a qualied service professional.

• SERVICE HEATER LED: Indicates a fault in heater or its controls. Switch OFF heater and contact a qualied service professional.

TO VIEW ERROR CODES:

1. Press and release POOL ON and TEMP UP buttons simultaneously. The most

recent error code will display.

2. Use the TEMP UP or TEMP DOWN buttons to scroll through the last 5 error codes.

Note: To erase an error code, press POOL ON and SPA ON simultaneously while the

heater is o󰀨.

TO VIEW STACK FLUE TEMPERATURES:

1. Press and hold the POOL ON or SPA ON button for 5 seconds. Stack Flue 1 (SF1)

temperature will display, along with a dot in the upper left corner).

2. Press the TEMP UP button to display Stack Flue 2 (SF2) temperature.

REGULAR MAINTENANCE

For a list of all ETi heater replacement parts, and their associated part numbers, consult the latest Pentair product catalog or ETi 400 Installation and User's Guide.

START OF EVERY POOL SEASON:

1. Inspect heater panels and venting system for restrictions to air and

exhaust ow.

2. If installed within an

enclosure, ensure enclosure

air intakes are open and clear of obstructions.

3. Test Pressure Relief Valve. See image to the right.

4. Test Water Pressure

Switch. Refer to the ETi 400 Installation and User’s Guide for specic test procedures.

EVERY 12 MONTHS:

1. Have a qualied service professional clean and vacuum out any soot or deposits from

Heat Exchanger. If necessary,

use a biodegradable descaler solution to break up mineral deposits.

Inspect the heat exchanger

insulation for damage.

2. Have a qualied service professional inspect burner

spark electrode and ame

sensor for damage.

LEVER

UPWARDS

Spark Electrode

Flame Sensor

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