Electrical connections
6 720 645 504 (2011/04) en
45
11.7 Connection of additional heat alarm
Fig. 37 Alarm, additional heat
E71 Additional heat
E71.E1.E1.F21 Alarm, additional heat
A1, A2, 11, 14 Relay
10, C Terminal blocks, PEL board
B Use an intermediate relay on connection of additional
heat alarm E71.E1.E1.F21 to the low-voltage board
( Figure 33) when the alarm signal of the additional
heat is 230V.
11.8 Connection of domestic hot water
electric heater
Fig. 38 Connection, hot water electric heater
PHV1 Circuit board in the control unit
A1,A2, 1-6 Contactor
E41.E1.E1 Hot water electric heater
E41.E1.F21 Overheat protection, hot water electric heater
The electric heater is supplied with its own 3-phase
voltage from the distribution box. Control is exercised
from the control unit via the contactor.
The distribution box supplies the control unit with 1-
phase 230V on PHV1, terminal board 74.
The outgoing signal to the contactor for control of the
electric heater is on PHV1, terminal board 73.
Connect the alarm signal from phase L1 to PHV1,
terminal board, after the overheat protection. When the
overheat protection is triggered, the voltage on terminal
block 72 disappears and alarm is given in the display.
Acknowledge Hot water electric heater under
Additional heat \ Hot water electric heater.
6 720 616 938-40.1I
6 720 616 938-27.2I
To Next Page
Loading...
Need help?
General
