Hitachi YUTAKI RWM-2R1E Installation & Operation Manual page 282

YUTAKI CASCADE CONTROLLER ATW-YCC-03
Icon Name
Heater step
DHW Heater
Solar
Compressor
Boiler
Tariff
Defrost
Central
Forced OFF
Auto ON/OFF
Test Run
Anti-Legionella
DHW boost
ECO mode
Night Shift
CASCADE
CONTROLLER
Fan stopped by
Demand OFF
268 PMML0575 rev.2 - 03/2022
Indicates which of the 3 possible heater steps is applied on space heating
Informs about DHW Heater operation. (If it is enabled)
Combination with solar energy
Compressor enabled (For YUTAKI S, S COMBI)
Compressors enabled.
1: R410A/R32
2: R-134a (For YUTAKI S80)
Auxiliary boiler is working
Tariff signal informs about some cost conditions of the consumption of the system
Defrost function is active
Central mode icon is shown after some central order has been received and for the next 60
seconds.
Central error
When forced off Input is configured and its signal is received, all the configured items (C1, C2, DHW, and/or
SWP) are shown in OFF, with this small icon below
When daily average is over auto summer switch-off temperature, circuits 1 and 2 are forced to OFF (Only if
Auto ON/OFF enabled)
Informs about the activation of the "Test Run" function
Activation of the Anti-Legionella operation
It activates the DHW heater for an immediate DHW operation
- No icon means Comfort mode
ECO/Comfort mode for circuits 1 and 2
Informs about night shift operation
Informs about the activation of the "CASCADE" mode.
CASCADE CONTROLLER in alarm state
Informs about the stopagge of fan 1 or 2 by Demand OFF
Explanation