If two heating circuits are installed and if both circuit 1 and circuit
2 are supplied by the same heat exchanger (SERV 01 = +3),
heating circuit 1 always has priority *
)
. During
operating pha-
ses for heating circuit 1, it is possible to run heating circuit 2 in
or
mode, but not in
mode. The setpoint of the secondary
flow temperature for the corresponding operating modes can be
seen in the following table:
Heating circuit 1
(HK1)
Heating circuit 2
(HK2)
Secondary
flow temperature
setpoint
Annual program, weekly program, timer, external clock, conti-
nuous operating mode, etc., have the following priorities:
Priority
1: Timer
(highest
priority)
Priority
2: Continuous
operating
mode
Priority 3a: External clock
Priority 3b: Remote control
Priority
4: Annual
program
Priority 5: Weekly program (lowest priority)
*) Exception: Domestic hot water heating in parallel operation. In this case, the corresponding flow temperature setpoint applies
for domestic-hot-water heating.
After the key
has been pressed, the automatic programs are generally displayed and entered in 3 steps:
Step 1: Selecting the time program
Step 2: Selecting the time channel
Step 2: Selecting the operating status
2
2
2
7
P R O
Key
Program
Timer
Weekly program
Annual program
Key
Channel
External time channel
Heating circuit 1
Heating circuit 2
Domestic-hot-water circuit
Domestic-hot-water circuit
•
Heating circuit 1
•
Domestic hot water
– function heating
disabled
– function
heating enabled (setpoint 1)
– function
heating enabled (setpoint 2)
•
Heating circuit 2
•
Time channel to exterior
– function
0
OFF
– function 1
ON
– function
•
Domestic-hot-water circ.
0
OFF
1
ON
0
1
2
0
0
1
2
2
3
4
0
1
2
0
1
0
1
R
–
16
–
7 000458 003
