Installation Manual and Owner’s Guide WHO-321064-NG, WHO-321064-LP
ECOHOT
TM
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Loosen screw from test point and connect manometer tube on test point.
2. Maximum Manifold Pressure adjustment
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Plug in Power cord.
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Turn on all hot water taps served by the water heater.
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Adjust the temperature setting up to 140 F (60 C), make sure water heater’s all burners
working.
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Adjust Dip Switch 1 and Switch 2 to ON position, let water heater work on full capacity
conditions, on the condition of Inlet Gas Pressure is 11 inches W.C. (2740Pa) for LPG and
7 inches W.C. (1740Pa) for Nature Gas. Refer Fig:Switches.
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Use a small crossing screw driver adjust The Adjustable Resistance of PCB which marked
“MAX”, to meet the data of De-rating Manifold Max. Pressure from the De-rating
Manifold Pressure Table.
