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INSTALLATION AND OPERATING INSTRUCTIONS
TANKLESS WATER HEATER 199
CONTENTS
1.6 WATER AND SPACE HEATING APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.7.3 Tankless Domestic Hot Water with a Storage Tank . . . . . . . . . . . . . . . . . . . . 1-27
2.4 TANKLESS DOMESTIC HOT WATER MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.4.1 Tankless Domestic Hot Water - Standard and ECO Comfort Modes . . . . . . . . 2-4
2.6 ACCESSING THE INFORMATION MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.7 RESETTING THE MAINTENANCE COUNTER . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3.0 STARTUP & COMMISSIONING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 LIGHTING & SHUTTING DOWN THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2.2 Test Ignition Safety Shutoff
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2