AquaStar 125BL, 125BS, 125X

HEATER

ECO

SAFETY INTERLOCK DIAGRAM

LINEAR LIMIT

SPILLAGE SENSING

SWITCH

185º

MANUAL

RESET

BLACK

Contents

Main INSTALLA TION AND OPERATING INSTRUCTIONS FOR AQ-1 POWER VENT KIT DESIGNED FOR BOSCH 425 HN WATER HEATERS AQUASTAR 125B WATER HEATERS 8504077 rev. B 10.03 AQ-1 Parts included: 1 Power Vent Kit Bosch-Aquastar Gas Pressure Switch 2 Page 4 Linear Spillage Sensing Switch FIGURE C FIGURE D 5 COMMON SETUP FIGURE E 6 125B Model shown CAUTION FIGURE F 7 POWER VENT FAN AND MOTOR FIGURE G INSTRUCTIONS (DO NOT BEGIN THESE PROCEDURES UNTIL VENT HOOD HAS BEEN INSTALLED) FIGURE H 8 FIGURE I TROUBLE-SHOOTING, MAINTENANCE AND TEST PROCEDURES 9 Page Page PILOT HOLE PILOT HOLE 12 VH1-4 (SQUARE) VENT HOOD INSTALLATION TEMPLA TE