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Contents
SAFETY INFORMATION .................................................................................................. 3
INTRODUCTION ............................................................................................................ 4
MODES OF OPERATION ................................................................................................. 4
Modulating Mode ................................................................................................................................. 4
Step Modulating Mode ......................................................................................................................... 5
Basic Mode ............................................................................................................................................ 5
SPECIFICATIONS ............................................................................................................ 8
QUICK START-UP PROCEDURES .................................................................................... 10
INSTALLATION ............................................................................................................ 11
Clearances ........................................................................................................................................... 11
Freeze Protection ................................................................................................................................ 11
Rear Piping Connections ..................................................................................................................... 11
Ecosmart Mounting ............................................................................................................................. 12
Plumbing ............................................................................................................................................. 12
Pump ................................................................................................................................................... 13
PIPING DIAGRAMS ...................................................................................................... 15
Typical Tankless Water Heater Piping ................................................................................................. 15
Typical Boiler Piping ............................................................................................................................ 16
ELECTRICAL................................................................................................................. 17
Electrical Information .......................................................................................................................... 17
Thermostat Wiring .............................................................................................................................. 17
Ecosmart ES50LVP/ES90LVP Wiring Diagram ..................................................................................... 18
Miscellaneous Wiring .......................................................................................................................... 19
DIP SWITCH OPTIONS .................................................................................................. 20
Switch Locations ................................................................................................................................. 20
Outdoor Temperature Select .............................................................................................................. 20
Heat CFM (ES90LVP) ........................................................................................................................... 21
Heat CFM (ES50LVP) ........................................................................................................................... 21
System (ES990LVP and ES50LVP) ........................................................................................................ 21