Boiler - Viessmann Vitocrossal 300 Service Manual

Vitocrossal 300 CU3A 26 to 57 Service
General
(continued)
Coding in the factory set mode
Participant no.
Internal circulation pump function
51:0
77:1
Detached house/apartment building
7F:1
Lock out controls
8F:0
Set supply temperature for external demand
9B:70

Boiler

Coding in the factory setting
Single/multi boiler system
21:0
Service interval in months
23:0
Service status
24:0
System with low loss header:
Internal circulation pump always
starts when there is a heat
demand
LON participant number
Detached house
Operation in the standard menu
and extended menu enabled.
Note: The respective code is only
activated when you exit
the service menu.
Set supply temperature for
external demand 158°F (70°C)
No service interval (hours run)
selected
No time interval for burner
service
No "Service" display
Possible change
51:1 System with low loss header:
When there is a heat demand, the
internal circulation pump is only started
if the burner is operating.
Circulation pump is switched
off after a 60 sec. delay.
51:2 System with heating water
buffer DHW tank:
When there is a heat demand, the
internal circulation pump is only started
if the burner is operating.
Circulation pump is switched
off after a 60 sec. delay.
77:2 LON participant number,
to adjustable from 1 to 99:
77:99 1 = Boiler
10 - 98 = Vitotronic 200-H
99= Vitocom
Note: Allocate each number only once.
7F:0 Apartment building
Separate adjustment of holiday program
and time program for DHW heating
possible.
8F:1 Operation in standard menu and
extended menu blocked.
Emissions test mode can be enabled.
8F:2 Operation enabled in the standard menu
and blocked in the extended menu.
Emissions test mode can be enabled.
9B:0 Set supply temperature for external
to demand adjustable from 32 to 260°F
9B:127 (0 to 127°C) (limited by boiler-specific
parameters).
Possible change
21:1 Number of hours run before the burner
to should be serviced is adjustable from
21:100 100 to 10,000 h
One adjusting step ≙ 100 h.
23:1 Interval adjustable from 1 to 24 months.
to
23:24
24:1 "Service" display (the address is
automatically set and must be manually
reset after a service has been carried
out).
Coding 1
51