Manuals / AquaStar / Household Appliance / Water Heater

AquaStar 125B NGS MAINTENANCE TABLE see page, Bbt North America, Every Year, EVERY 2 YEARS

Models: 125B NGS

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MAINTENANCE TABLE see page 13

MAINTENANCE TABLE see page 13

	EVERY YEAR	EVERY 2 YEARS	EVERY 3-5 YEARS

LUBRICATE WATER VALVE		†

REBUILD WATER VALVE			†

INSPECT WATER FILTER SCREEN	†

INSPECT PILOT ASSEMBLY	†

INSPECT VENT ASSEMBLY	†

INSPECT MAIN BURNER	†

Replacement Parts available:

BBT NORTH AMERICA

Bosch Group

Bosch Water heating 340 Mad River Park Waitsfield, Vermont 05673 Phone 800-642-3111 Fax (802) 496-6924 www.boschhotwater.com techsupport@boschhotwater.com

Recycled paper

VULCANO Termodomésticos S.A.

Estrada de Cacia

3801 - 856 Aveiro - PORTUGAL

©2006 BBT NORTH AMERICA, Waitsfield, VT all rights reserved

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AquaStar 125B NGS specifications MAINTENANCE TABLE see page, Bbt North America, Every Year, EVERY 2 YEARS, EVERY 3-5 YEARS

Contents

MODEL 125B LPS and 125B NGS Thermostatically Modulated FEATURES UNPACKING THE AQUASTAR HEATERAQUASTAR MODEL 125BS FRONT VIEWSIDE VIEW 6 720 606PROPER LOCATION FOR INSTALLING YOUR HEATER GENERAL RULES TO FOLLOW FOR SAFE OPERATIONCOMBUSTION AIR REQUIREMENTS CLEARANCESMOUNTING INSTALLATION The Aquastar 125 B “S” is design certified for mounting on a wallFig. 2 - Incandescent Particle Tray Illustration Fig. 1 - Mounting the HeaterVENTING Figure AFigure B MASONRY CHIMNEYS To check the draft Close all doors and windows to the outside GAS CONNECTIONS and Gas Regulator GAS LINE SIZING FOR NATURAL GASFOR LP GAS GAS LINE SIZING WATER CONNECTIONSAltitude Natural GasFOR YOUR SAFETY READ BEFORE LIGHTING THE PILOT HOTCOLDMAINTENANCE AND SERVICE INFORMATION ABOUT WATER TEMPERATURETROUBLE SHOOTING see maintenance table Introduction BURNERS DO NOT IGNITE WHEN HOT WATER IS TURNED ON 1. Pilot is not on 3. Thermostat calibration is incorrect or thermostat is defective Fig. 10 - Diagram of AquaStar 125 BS 1. Heat exchanger 2. Pilot assembly3. Burner manifold gas pressure test nipple 4. Main gas burner 5. Pilot gas tubingAQ 125 BS Fig. 11 - INTERIOR COMPONENTS DIAGRAM AND PARTS LIST 6 720 606INTERIOR COMPONENTS DIAGRAM AND PARTS LIST 125BS Fig. 12 - Flow chart of Aquastar 125 BS 6 720 606LIMITED WARRANTY Aquastar6 720 606 6 720 606 MAINTENANCE TABLE see page INSPECT PILOT ASSEMBLYINSPECT VENT ASSEMBLY Replacement Parts available