Solar/Group "4 - Viessmann VITOCROSSAL Service Instructions Manual

Code 2
DHW/Group "3"
(cont.)
Coding in the delivered condition
72:0 DHW circulation pump: "ON" ac-
cording to time program (only for
weather-compensated control unit)
73:0 DHW circulation pump: "ON" ac-
cording to time program (only for
weather-compensated control unit)

Solar/Group "4"

Note
The solar group is only displayed if a solar control
module, type SM1, is connected.
Coding
Coding in the delivered condition
Not allocated to any function mode
00:8 The solar circuit pump starts if the
collector temperature exceeds the
actual cylinder temperature by 8 K.
01:4 The solar circuit pump is switched
off if the differential between the
collector temperature and the ac-
tual cylinder temperature is less
than 4 K.
02:... Data dependent on the software
version of solar control module
SM1
03:10 The temperature differential be-
tween the collector temperature
and actual cylinder temperature is
regulated to 10 K.
04:4 Controller amplification of speed
control 4 %/K
05:10 Min. speed of the solar circuit
pump 10 % of max. speed
06:75 Max. speed of the solar circuit
pump 75 % of max. possible speed
52
Possible change
71:2 "ON" during DHW heating to set val-
ue 1
72:1 "OFF" during DHW heating to set
value 2
72:2 "ON" during DHW heating to set val-
ue 2
73:1 "ON" from once per hour for 5 min
to up to 6 times per hour for 5 min dur-
73:6 ing the time program
73:7 Constantly "ON"
Possible change
00:2 The differential between the actual
to cylinder temperature and the start
00:30 point for the solar circuit pump is ad-
justable from 2 to 30 K.
01:1 The differential between the actual
to cylinder temperature and the stop
01:29 point for the solar circuit pump is ad-
justable from 1 to 29 K.
02:0 Solar circuit pump not speed-con-
trolled
02:1 With wave packet control function
Never adjust
02:2 Solar circuit pump speed-controlled
with PWM control
03:5 The differential temperature control
to between collector temperature and
03:20 actual cylinder temperature is ad-
justable from 5 to 20 K.
04:1 Controller amplification adjustable
to from 1 to 10 %/K
04:10
05:2 Min. speed of solar circuit pump ad-
to justable from 2 to 100 %.
05:100
06:2 Max. speed of solar circuit pump ad-
to justable from 2 to 100 %.
06:100