Hayward ENERGYLINE PRO ENPI7M Manuel D'instructions Et D'installation page 61

3. INSTALLATION AND CONNECTION (continued)
3.6 Water flow setting
With the water entry and exit valves being open, adjust the by-pass valve in
order to obtain a difference of 2°C between the inflow and outflow temperature
(see principle diagram § 3.1). You can verify the switch by seeing the entry/
exit temperatures directly on the control panel.
Note: Opening the by-pass valve creates a weaker flow, which leads to an
increase in ∆T.
Closing the by-pass valve creates a stronger flow, which leads to a
decrease in ∆T.
Water inlet temperature Water outlet temperature
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