139
5790 733 - 07
Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Coding Level 1
Coding
Coding in the factory set condition
Possible change
“Number of boilers connected to the cascade”
35:2
to 3
Boiler sections
Factory set conditions:
CA3 2.5/3.0/3.5/4.0: 2
CA3 5.0/6.0: 3
35:1
to
35:8
1 to 8 boiler sections connected to lead control
“Minimum system supply temperature limit”
36:0
Electronic minimum system supply
temperature limit set to 32°F (0°C).
36:1
to
36:127
Adjustable from 32°C to 261°C (0°C to 127°C)
(only when operating with standard room
temperature).
“Maximum system supply temperature limit”
37:80
Electronic maximum system supply
temperature limit set to 176°F (80°C).
37:20
to
37:127
Adjustable from 68°F to 261°F (20°C to
127°C).
Note:
Value must be lower than the lowest
value of coding “06” in the “Combustion
controller” group of every control unit.
“Boiler section 1 or boiler sequence changeover”
38:0
No boiler section boiler sequence
changeover
Do not adjust!
38:1
Boiler section 1 changeover:
Every first day of the month, the boiler with
the shortest number of hours run by its burner
becomes the boiler section 1.
38:2
to
38:200
Boiler section 1 changeover after 200 to
20,000 hours run
1 step 100 hours run.
“Permanent boiler section 1”
39:0
No permanent lead boiler section.
Do not adjust!
39:1
to
39:3
Permanent lead boiler section is 1, 2, 3, 4, 5,
6, 7 or 8.
“Permanent last boiler”
3a:0
No permanent last boiler section.
Do not adjust!
3a:1
to
3a:3
Permanent last boiler section is 1, 2, 3, 4, 5, 6,
7 or 8.
Coding in the factory set condition
Possible change
”Service” display”
24:0
No “Service” display
24:1
“Service” is displayed (the address is
automatically set and must be manually
reset after a service has been carried out).
“Cascade” Group
“Boiler” Group
(continued)
