Hitachi YUTAKI M R32 Series - Page 73

73
PMML0600 rev.0 - 06/2022
6
OPTIONAL UNIT WIRING FOR ACCESSORIES
ELECTRICAL AND CONTROL SETTINGS
◆ Water outlet thermistor for circuit 3 (TWO3)
When the installation is congured with a third circuit the thermistor for the water outlet
temperature have to be connected between terminals 8 and 9 of the terminal board 2.
9
8
T
wo3
AuxSensor1
◆ Swimming pool water temperature thermistor (TSWP)
To control the swimming pool temperature. The thermistor should be positioned inside plate
heat exchanger of the swimming pool and have to be connected between terminals 9 and 10 of
the terminal board 2.
10
9
T
SWP
AuxSensor2
◆ Second ambient temperature thermistor (TAMB2)
To control the second ambient temperature. The thermistor should be positioned outdoors and
have to be connected between terminals 9 and 11 of the terminal board 2.
11
9
T
AMB2
AuxSensor3
◆ ECO (Default for input 2)
When enabled at Unit controller, both for circuit 1 and circuit 2, also for heating and cooling,
this input switches the indoor unit into an ECO mode by adjusting its settings only when input is
closed.
The input can come from a push button, a thermostat or any other external device with that