SR501 EN Operation Manual
- 8 -
-
T1:
for NTC10K, B=3950, ≤135
o
C temperature
sensor (PVC cable ≤105
o
C),
designed for DHW circulation TCYC or AH function (optional)
-
T2:
for NTC10K, B=3950, ≤135
o
C sensor (PVC cable ≤105
o
C), designed
for pipe anti-freezing function (optional)
Note:
T1, T2 temperature sensors are not included in the standard parts of
delivery, which should be purchased separately.
Terminal layout of controller for electrical heater of 3000W
•
Power input N, L
:
20A, for power connection, L: live wire, N: zero wire,
protective ground wire, please use 2mm
²
cable to connect the ground
reliably.