Viessmann Vitodens 200-W Service Instructions Manual page 58

Coding 2
Solar
(continued)
Coding in the factory setting
0A:5
0B:0
0C:1
0D:1
0E:1
0F:70
10:0
11:50
12:20
58
Temperature differential for
stagnation time reduction
(reduction in the speed of the
solar circuit pump to protect
system components and heat
transfer medium) 5 K.
Collector frost protection
function switched off
t monitoring switched on.
No flow rate captured in the solar
circuit, or flow rate too low.
Night circulation monitoring
switched on.
Unintentional flow rate is
captured in the solar circuit
(e.g. at night).
Calculation of solar yield
with Viessmann heat transfer
medium
The flow rate in the collector
circuit at the maximum pump
speed is set to 1.8 USG (7 L/
minute).
Target temperature control
switched off (see coding
address "11").
Set DHW tank temperature for
solar 122°F (50°C).
- Target temperature control
switched on (code 10:1):
Temperature at which the solar
heated water in the DHW tank
is to be stratified.
- Extended control functions set
to heat two DHW tanks (code
20:8):
If the actual temperature of a
DHW tank reaches the selected
set DHW tank temperature,
heating is switched to the
second DHW tank.
Minimum collector temperature
68°F (20°C).
The solar circuit pump is only
started when the set minimum
collector temperature is exceeded
at the collector temperature
sensor.
Vitodens 200-W B2HA 80, 100 Service
Possible change
0A:0 The differential between the
to set DHW tank temperature and
0A:40 the start point for reducing the
stagnation time can be adjusted
from 0 to 40 K.
0B:1 Collector frost protection function
switched on (not required with
Viessmann heat transfer medium).
0C:0
t monitoring switched off.
0D:0 Night circulation monitoring
switched off.
0E:2 Calculation of solar yield with water
as heat transfer medium (do not
select as operation is only possible
with Viessmann heat transfer
medium).
0E:0 Calculation of solar yield switched
off.
0F:1 Flow rate in the collector
to circuit adjustable from 1.6 to 6.7
0F:255 USG/minute (0.1 to 25.5 L/minute).
10:1 Target temperature control
switched on.
11:10 The set DHW tank temperature for
to solar can be adjusted from 50 to
11:90 194°F (10 to 90°C).
12:0 Minimum collector temperature
function switched off.
12:1 Minimum collector temperature
to adjustable from 34 to 194°F
12:90 (1 to 90°C).