Hitachi UTOPIA RAS-4HVRP2E - Available Control Functions; External Input and Output Setting (by 7-Segment Display)

6 Optional functions
RAS-(4-6)H(V)(R/N)(C/P)2E
SMGB0136 rev.0 - 07/2021
125
6
6.2.2 External input and output setting (by 7-segment display)
6.2.2.1 Available control functions
The outdoor unit PCB1 has three input terminals (CN1, CN2) that receive external signals and two output terminals (CN7)
that send signals to the exterior. The control functions are available by setting input and output terminals as shown below:
Control function number Setting of input functions Conguration of output functions
1 Fixing heating operation mode Operating signal
2 Fixing cooling operation mode Alarm signal
3 Demand stoppage Compressor ON signal
4 Outdoor unit fan motor start/stop Defrost signal
5 Forced stoppage
6 Control of 40% current demand
7 Control of 60% current demand
8 Control of 70% current demand
9 Control of 80% current demand
10 Control of 100% current demand
0 Without setting Without setting
The following functions are set before shipment:
Input terminal
Name of the input terminal Connector pin number Setting function Control function number
Input 1 CN1 (1-2) Fixing heating operation mode 1
Input 2 CN1 (2-3) Fixing cooling operation mode 2
Input 3 CN2 (1-2) Demand stoppage 3
Output terminal
Name of the output terminal Connector pin number Setting function Control function number
Output 1 CN7 (1-2) Operating signal 1
Output 2 CN7 (1-3) Alarm signal 2
? NOTE
Thesameinput/outputfunctioncannotbeassignedtodifferentinput/outputterminals.Insuchcase,thesettingofthehigherterminal
numberwouldbecomeinvalid.