MAXA HI-T User's And Installer's Manual page 50

HCA 4/B
FU1
U N
Q F1
PE U N
230V 50Hz
49
TC1
2 4 V A C
K A1
1 2 3 4
SL1
As for the RS485 terminal board, see the "signal wiring connection" section.
The dashed lines show the connections to be carried out by the installer.
All lines have to be protected at the origin by the installer.
Picture 2. HNSbox connection with HCA 4/B.
KA1 KA1
5 6 7 8
R D1
YV1
YV2
Hi‐T
Centralized controller
S T 1
°C
K A 1
M M
1 1
EV1
E1
H CA /4B 22-120
HNSbox terminal board
R S 48 5
KA1