Quick Action Function; Inputs And Outputs; Inputs; Outputs - Hitachi YUTAMPO Series Service Manual

3 Control functions

Quick action function

3.15 Quick action function
The following quick actions are shown when pressing the OK button at the setting temperature:
Timer: Menu for the selection and configuration of simple timer and schedule timer
-
Status: Display of information related to current operation conditions
-
DHW Boost: Activation of the auxiliary DHW heater and Heat Pump (if operation is possible, to speed up DHW
-
heating operation

3.16 Inputs and outputs

3.16.1 Inputs

The system allows to set three inputs depending on the operations and preferences of the installation. The input
functions are available when using the ATW-OFC-02 accessory.
• Smart Act / SG 1: This function is used to block or limit the power consumption of the heat pump when restrictions in
power supply must be observed.
• SG 2: When using a Smart Grid Ready application, this input is used as a digital input 2, allowing four different
operating modes.
• DHW Boost: Manual request for immediate DHW heating operation.
• Power Meter 1: Input used as kW/h pulse count for the monitoring of energy data.
• Forced OFF: Forced OFF operation of the unit. The remote control switch can still be used, but it will show an
indication that operation is forbidden.

3.16.2 Outputs

There are four available outputs to set. There are conditions of setting depending on the installation. The output functions
are available when using the ATW-OFC-02 accessory.
• Alarm: Output when an "Alarm Code" is received from the indoor or outdoor units.
• Operation: Output when the tank is in DHW heating operation.
• Defrost: Output when the operation state of the outdoor unit is defrosting.
• DHW Re-circulation: Output when the re-circulation pump for the DHW tank is enabled.
32 SMGB0135 rev.0 - 06/2020