PENTAIR EFI 400 (01) PDF MANUAL


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PDF Content Summary: 1 ETi® 400 HIGH EFFICIENCY HEATER QUICK REFERENCE GUIDE • Control Pad Overview...............1 • Regular Maintenance...............1 • Installation Requirements........2 • Frequently Asked Questions.....3

1 CONTROL PANEL OVERVIEW Digital Display Set Point Controls 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

• 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 off the heater. • HEATING LED: Illuminates when burner is active. Blinking LED indicates heater is calling for heat but not firing. 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 insufficient water flow through heater. Ensure filter and skimmers are clean. If LED remains illuminated, switch OFF heater and contact a qualified service professional. • SERVICE HEATER LED: Indicates a fault in heater or its controls. Switch OFF heater and contact a qualified 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 off. 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. Thermal Fuses Activate170˚F (77˚C) SFS Activates150˚F (66˚C) and venting system for restrictions to air and exhaust flow. 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 specific test procedures. EVERY 12 MONTHS: 1. Have a qualified 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 qualified service professional inspect burner spark electrode and flame sensor for damage. LEVER UPWARDS Spark Electrode Flame Sensor

187˚F (86˚C) Heating Pool140˚F (60˚C) Heating Spa

INSTALLATION REQUIREMENTS 2

MAX AIR INTAKE AND EXHAUST LINE LENGTHS 4" Pipe 120 ft (36.3 m) − # of 90º elbows x 12 ft (3.7 m) − # of 45º elbows x 6 ft (1.8 m) 6" Pipe 300 ft (91.4 m) − # of 90º elbows x 12 ft (3.7 m) − # of 45º elbows x 6 ft (1.8 m) Note: All horizontal sections must slope towards the heater 1/4" per foot. This allows condensate to drain through the neutralizer cartridge properly. VENTILATION REQUIREMENTS WATER FLOW REQUIREMENTS • Front and back outer panels can be swapped, allowing water connections to be oriented as needed. • To reduce flow rates, an external bypass valve is required when water flow is above 120 GPM. GAS REQUIREMENTS • Bottom panels and internal gas valve can be swapped, allowing gas inlet to be oriented as needed.

• Schedule 40 PVC. Schedule 80 CPVC and stainless steel are all approved venting materials. PVC joints must be glued in compliance with National Fuel Gas Code. • If installed within an enclosure and vented outside, the termination cap provided with the heater must be used. Air Intake Flue Exhaust • Gas Supply Requirements MIN MAX NATURAL GAS 4" WC 10.5" WC PROPANE 4" WC 12" WC Note: Maximum pressure change should not exceed 2" WC. Minimum running pressure should not fall below 4" WC. • Max Gas Supply Line Length 3/4" 1" 1-1/4" 1-1/2" NATURAL GAS N/A 20 ft (6.1 m) 90 ft (27.4 m) 200 ft (61 m) PROPANE 20 ft (6.1 m) 60 ft (18.3 m) 220 ft (67.1 m) 450 ft (137.2 m)

If venting vertically, the termination cap may require a rain cap (not provided). AIR INTAKE REQUIREMENTS • Max combustion intake length matches max venting length caculated above. • Intake and exhaust pipes must be minimum of 36" (91.4 cm) apart. • If using 4" pipe, Combustion Air Intake Kit (P/N 475971 -- sold separately) MUST be installed. Refer to the ETi 400 Installation and User’s Guide for specific installation procedures. Air Intake Kit (P/N 475971) • Combustion Parameters CO2 O2 NATURAL GAS 7.8 - 9.2% 4.8 - 7.2% PROPANE 9.6 - 10.2% 5.4 - 6.3% OTHER INSTALLATION REQUIREMENTS • 15 Amp Circuit Required. • Heater produces 2-4 gallons (7.6 - 15.1 L) of condensate per hour. Condensate neutralizers are not always required, but we strongly recommend installing a Condensate Neutralizer Kit (P/N 475612).

3 FREQUENTLY ASKED QUESTIONS • Which fuel does my heater use? Inspect the heater's gas orifice. The outer face of the gas orifice will be marked with either FN (Natural Gas) or NL (Propane). • What certifications does the ETi 400 meet? The ETi heater is certified by The American Society of Mechanical Engineers (ASME). The heater also complies with CSD-1 standard and CSA certified for ANSI Z21.56 /CSA 4.7. Certification sheets are either included with the heater manual, or inside the packing slip attached to each heat exchanger. • What makes the ETi 400 heat exchanger special? The direct-fire heat exchanger is made of extremely durable and highly corrosion-resistant titanium. The heat exchanger's temperature rise is 30°F +/- 5°F (-1°C +/- 15°C). • How efficient is the ETi 400 heater? The ETi 400 has one of the highest thermal efficiencies in the pool industry. 96% of the heat generated during the combustion process is transferred directly to pool water. This high efficiency improves your heat up time and reduces your energy cost as shown by the formulas below:

TIME = Pool/Spa Volume X 8.34 X ΔT Heater BTU X 0.96 COST = Heater BTU X Time ENERGY 100,000 X Gas Price • Will the outside of my heater become hot? Time: Hours required to heat pool Pool/Spa Volume: Volume of pool in gallons ΔT: Desired temperature rise Heater BTU: Heater BTU rating Gas Price: Local gas price (therm/dollar)

Thanks to the heater's high efficiency most of the heating capacity goes directly into your pool, but a small amount is expelled as exhaust. This means the heater's plastic and metal outer surfaces remain close to room temperature. PENTAIR.COM All indicated Pentair trademarks and logos are property of Pentair Inc. or its global affiliates in the U.S.A and/or other countries. Third party registered and unregistered trademarks and logos are the property of their respective owners. © 2020 Pentair. All rights reserved. This document is subject to change without notice. *476253* P/N 476253 REV. A 7/28/20


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