Hitachi RWM-2R1E Installation & Operation Manual page 84

And yutaki cascade controller
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UNIT CONTROLLER

Hot Water Tank
Considerations:
When Operation status is DHW ON: inlet pipe has orange color inside and arrows moving. Outlet pipe is blue with arrows too.
When not working on DHW ON pipes are shown in light grey.
When antilegionella is enabled a text is shown, indicating if it is being execute or not.
T
is T
when using a YUTAKI S COMBI, otherwise:
WO
WHP
If buffer tank is located after DHW use T
-
-
Otherwise use T
wo
Second sensor temperature shown only for YUTAKI S COMBI.

Swimming Pool
Considerations:
When demand off: inlet and outlet pipes are gray.
When demand on: T
water is orange (hot) and T
WO
74
PMML0575 rev.1 - 09/2021
, if buffer tank is located before DHW use T
wo
water is blue (cold).
WI
WO3

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