Solar - Viessmann Vitoladens 300-W Installation And Service Instructions For Contractors

Coding level 1
(cont.)

Solar

Coding
Coding in the delivered condition
Solar circuit pump speed control
02:... Factory setting dependent on the
software version of solar control
module SM1
Maximum cylinder temperature
08:60 The solar circuit pump is stopped
when the actual cylinder tempera-
ture reaches 60 °C (maximum cyl-
inder temperature).
Stagnation time reduction
0A:5 To protect the system components
and heat transfer medium, the
speed of the solar circuit pump is
reduced when the differential be-
tween the actual cylinder tempera-
ture and the set cylinder tempera-
ture is less than 5 K.
Solar circuit flow rate
0F:70 The flow rate of the solar circuit at
max. pump speed is set to 7 l/min.
Extended solar control functions
20:0 No extended control function ena-
bled
Possible change
02:0 Solar circuit pump not speed-con-
trolled
02:1 Solar circuit pump (multi stage) is
speed-controlled with wave packet
control (do not adjust)
02:2 Solar circuit pump speed-controlled
with PWM control
08:10 The maximum cylinder temperature
to is adjustable from 10 to 90 °C
08:90
0A:0 The differential between the set cyl-
to inder temperature and the start point
0A:40 for reducing the stagnation time is
adjustable from 0 to 40 K.
0F:1 Flow rate of the solar circuit adjusta-
to ble from 0.1 to 25.5 l/min
0F:255
20:1 Auxiliary function for DHW heating
20:2 Differential temperature control 2
20:3 Differential temperature control 2
and auxiliary function
20:4 Differential temperature control 2 for
central heating backup
20:5 Thermostat function
20:6 Thermostat function and auxiliary
function
20:7 Solar heating via external heat ex-
changer without additional tempera-
ture sensor
20:8 Solar heating via external heat ex-
changer with additional temperature
sensor
20:9 Solar heating of 2 DHW cylinders
Codes
43