Hitachi RAS-8FSXN - Page 128

a Auxiliary relay
b 3-pin connector
c Connector CN16
d Outdoor unit PCB1
¿ Defrosting signal (Control function number 4)
This function is used to receive the defrosting signal.
•
The auxiliary contact relay (RYa) is closed during defrosting.
• Terminals 1 and 3 (output 2) of the CN16 to configure the defrost signal.
a Auxiliary relay
b 3-pin connector
c Connector CN16
d Outdoor unit PCB1
1 3
CN16
RYa
RY
b
c
a
d
1 2 3
1 3
CN16
RYa
RY
b
c
a
d
1 2 3
6 Optional functions
122
SMGB0065 rev. 1 - 12/2010