4
CONTENTS
1. USER’S INSTRUCTIONS .................................................................................................................................. 5
1.1 FEATURES AND BENEFITS ...................................................................................................................... 6
1.2 IMPORTANT SAFETY INFORMATION ....................................................................................................... 7
1.2.1 OPERATIONAL SAFETY INFORMATION ......................................................................................... 8
1.3 WATER TEMPERATURE CONTROL ....................................................................................................... 10
1.3.1 MAXIMUM DELIVERY TEMPERATURES ....................................................................................... 10
1.3.2 OPERATION WITHOUT WATER CONTROLLERS ......................................................................... 10
1.3.3 RINNAI WATER CONTROLLERS ................................................................................................... 10
1.3.4 WATER CONTROLLER COMBINATIONS & CONFIGURATIONS .................................................. 11
1.3.5 UNIVERSAL WATER CONTROLLER (MC-601) OPERATION ........................................................ 12
1.4 TROUBLE SHOOTING ............................................................................................................................. 14
1.4.1 ERROR CODES .............................................................................................................................. 14
1.4.2 TROUBLESHOOTING WITHOUT WATER CONTROLLERS .......................................................... 16
1.4.3 SERVICE ......................................................................................................................................... 16
2. INSTALLER’S INSTRUCTIONS ...................................................................................................................... 17
2.1 INSTALLATION WARNINGS ..................................................................................................................... 18
2.1.1 APPLIANCE LOCATION .................................................................................................................. 18
2.2 UNPACKING THE WATER HEATER ........................................................................................................ 19
2.3 DIMENSION .............................................................................................................................................. 19
2.4 INSTALLATION ......................................................................................................................................... 20
2.4.1 SELECTING A LOCATION ............................................................................................................... 20
2.4.2 WATER CONNECTION ................................................................................................................... 22
2.4.3 GAS CONNECTION ........................................................................................................................ 22
2.4.4 ELECTRICAL CONNECTION .......................................................................................................... 23
2.4.5 CONTROL BOARD DIPSWITCH SETTING .................................................................................... 23
2.5 WATER CONTROL ................................................................................................................................... 24
2.5.1 GENERAL INFORMATION .............................................................................................................. 24
2.5.2 UNIVERSAL WATER CONTROLLER (MC-601) INSTALLATION ................................................... 26
2.6 COMMISSIONING .................................................................................................................................... 27
2.7 TECHNICAL DATA .................................................................................................................................... 28