Viessmann VITOLIGNO 300-P Service Instructions Manual page 103

Repairs
(cont.)
A Outside temperature sensor
B Radio clock receiver
C Green LED
Connection
2-core lead, length max. 35 m with a
cross-section of 1.5 mm
Check reception
During reception, the green LED on the
radio clock receiver flashes.
If the red LED flashes, rotate the aerial
until reception is confirmed by the flash-
ing of the green LED.
A B
E
1 2
1 2 3
1
2
.
C D
D Red LED
E Aerial
Specification
IP rating
Permissible ambient tem-
perature during operation,
storage and transport
Troubleshooting
IP 43
−40 to +
70 °C
103