Hitachi YUTAKI S Series Technical Catalogue page 138

10 Optional functions
Indoor unit
Output signals and output ports
Code Name
Output 1
o1
Output 2
o2
Output 3
o3
Output 4
o4
Output 5
o5
Output 6
o6
Output 7
o7
Output 8
o8
Output functions (To be configured from the unit controller)
Function # Output
0 Disabled
1 3WV SWP
2 WP3
3
Boiler combination
4 Solar pump
5 Alarm signal
6 Operation signal
7 Cooling signal
Demand-ON signal
8
circuit 1
9 Heating signal
10 DHW signal
11
Solar overheat
12 Defrost
DHW re-circulation
13
pump
14 Heater relay 1
15 Heater relay 2
130 TCGB0123 rev.2 - 10/2019
Port
TB2 #34 (N) & 35 (L)
TB2 #34 (N) & 36 (L)
TB2 #37&38
TB2 #39&40
CN20 #1-2
CN21 #1-2
CN22 #1-2
CN23 #1-2
In case of combine YUTAKI with swimming pool, this output is used to drive 3 way valve
swimming pools.
In case of combine YUTAKI with boiler or hydraulic separator, this output is used to drive
water pump 3.
In case of combine YUTAKI with boiler, this output is used to switch ON it.
In case of combine YUTAKI with solar panel, this output is used to drive water pump station
Output when an "Alarm Code" is received from Indoor Unit or outdoor unit.
Output in case that "Thermo-ON" signal in any condition.
Output in case that "Thermo-ON" signal in Cooling operation.
Signal is enabled when circuit 1 is operating in Demand-ON.
Output in case that "Thermo-ON" signal in Heating operation.
Output in case that "Thermo-ON" signal in DHW operation.
Output in case that solar temperature signal is active when solar overheat (only when solar
combination status is total control).
Output if the operation state of the outdoor unit when is defrosting.
In case of re-circulation pump enabled for HSW tank.
In case of Heater operation for YUTAKI M. Output for Relay 1.
In case of Heater operation for YUTAKI M. Output for Relay 2.
Output
230 V
230 V
Free voltage signal
Free voltage signal
12Vdc signal
12Vdc signal
12Vdc signal
12Vdc signal
Description