Installation Manual and Owner’s Guide WHO-321064-NG, WHO-321064-LP
ECOHOT
TM
2 of 27
TABLE OF CONTENTS
FEATURES: ............................................................................................................................................................... 3
SPECIFICATIONS: .................................................................................................................................................. 3
INSTALLATION INSTRUCTIONS: ....................................................................................................................... 3
Finding the Proper Location
Mounting
Installation of Gas Line
Installation of Cold Water Supply
Installation of Hot Water Outlet
Installation of Power Supply
GENERAL RULES TO FOLLOW FOR SAFE OPERATION ............................................................................. 5
Anti Freeze Device ..................................................................................................................................................... 6
Gas Supply .................................................................................................................................................................. 6
Gas Piping, Connections and Gas Regulator
Gas Line Sizing (Natual Gas and LP Gas)
High Altitude Operation
Water Connections ..................................................................................................................................................... 9
TURNING THE WATER HEATER ON
TURNING THE WATER HEATER OFF
Connecting the pressure relief valve (PRV)
OPERATING INSTRUCTIONS ............................................................................................................................ 11
WHAT TO DO IF YOU SMELL GAS
MAINTENANCE AND SERVICE ......................................................................................................................... 12
TROUBLE SHOOTING ......................................................................................................................................... 16
Introduction
No spark at the pilot
Flow
Error Code
PARTS LIST ............................................................................................................................................................. 20
Figure 1: Interior Diagram ..................................................................................................................................... 22
Figure 2: Plumbing Installation .............................................................................................................................. 23
Figure 3: Front & Side Views .................................................................................................................................. 23
Figure 4: Direct Vent Terminal ............................................................................................................................... 24
Figure 5: Wiring Diagram……………………………….......................................................................................26
Figure 6: Tankless Water Heater with Domestic Recirculation Loop ................................................................. 27
