148
5790 733 - 07
Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
“General” Group
(continued)
Coding in the factory set condition
Possible change
“Function output A1 at AM1 extension”
34:0
DHW recirculation pump.
34:1
Heating circuit pump without mixing valve A1
(Heating circuit 1).
34:2
Tank loading pump
34:3
Circulation pump neutralizing system or flue
gas/water-heat exchanger.
“Servomotor runtime”
40:125 Servomotor runtime at plug
gS
A1 125 sec
Do not adjust!
40:5
to
40:199
Adjustable from 5 sec. to 199 sec.
“Sensor 17A”
4a:0
Do not adjust!
--
--
“Sensor 17B”
4b:0
No sensor
aJ
B
installed.
4b:1
Sensor
aJ
B
installed (e.g. temperature sensor
T2); automatic recognition.
“Connection at plug 20A1”
4c:0
Connection on plug
sÖ
A1:
Heating circuit pump
4c:1
Primary pump, tank loading system.
4c:2
Thermal control switch contact .
“Connection at plug 29”
4d:1
Connection at plug
sL
: Shunt pump.
4d:0
System pump
4d:2
Boiler pump
4d:3
Boiler pump with isolation valve function.
“Connection at plug 52A1”
4e:0
Motor isolation valve.
4e:1
Motor for 3-way mixing valve for return
temperature control.
4e:1
to
4e:3
Do not adjust!
“Delay off time, shunt or system pump”
4f:5
Delay off time system pump 5 min.
4f:0
No pump delay off.
4f:1
to
4f:60
Adjustable from 1 to 60 min.
“Supply temperature sensor for hydraulic low loss header”
52:0
Do not adjust!
“Solar thermal system”
54:0
Without solar thermal system.
54:1
to
54:3
Do not adjust!
54:4
With solar control module, type SM1, with
auxiliary function, e.g. central heating backup;
automatic recognition.
“EA1 extension”
5b:0
Without EA1 extension.
5b:1
With EA1 extension; automatic recognition.
Coding Level 2