Viessmann Vitotronic 300 Installation And Service Instructions Manual page 72

Code 2
Calling up coding level 2
"Solar" Group
Coding in the delivered condition
06:75 Maximum speed of the solar circuit pump
75% of the maximum possible speed.
07:0 Interval function of the solar circuit pump
switched off.
08:60 Set DHW temperature (maximum DHW
tank temperature) 140°F (60°C).
09:130 Maximum collector temperature (to protect
the system components) 266°F (130°C).
0A:5 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.
0B:0 Frost protection function for solar circuit
switched off.
0C:1
n t monitoring switched on. No flow rate
captured in the solar circuit, or flow
rate too low.
0D:1 1 Night circulation monitoring switched on.
Unintentional flow rate is captured in the
solar circuit (e.g. at night).
0E:1 Heat statement in conjunction with
Viessmann heat transfer medium.
0F:70 Solar circuit flow rate at the maximum
pump speed 7 L/min.
10:0 Target temperature control switched off
(see coding address "11").
11:50 Set solar DHW temperature 122°F (50°C).
Target temperature control switched on
(code "10:1"): Temperature at which
the solar heated water in the DHW
DHW tank is to be stratified.
Code "20:9" (heating of two DHW
DHW tanks) is selected: When one DHW
DHW tank reaches its set DHW
temperature, the second DHW tank is
heated.
72
(continued)
Vitotronic 300, GW5B Installation and Service
Possible change
06:1 Maximum speed of the solar circuit pump is
to adjustable from 1 to 100%.
06:100
07:1 Interval function of the solar circuit pump
switched on. To capture the collector
temperature more accurately, the solar circuit
pump starts for short cycles.
08:10 Set DHW temperature adjustable from
to 50 to 194°F (10 to 90°C).
08:90
09:20 Temperature adjustable from 68 to 392°F
to (20 to 200°C).
09:200
0A:0 Stagnation time reduction is disabled.
0A:1 Temperature differential adjustable from
to 1 to 40 K.
0A:40
0B:1 Frost protection function for solar circuit
switched on (not required with Viessmann
heat transfer medium).
0C:0
n t monitoring switched off.
0D:0 Night circulation monitoring switched off.
0E:2 Never adjust.
0E:0 No heat statement.
0F:1 Flow rate adjustable from 1.6 to 404 USG/h
to (0.1 to 25.5 L/min).
0F:255 1 step ≙ 1.6 USG/h (0.1 L/min)
10:1 Target temperature control switched on.
11:10 The set solar DHW temperature is adjustable
to from 50 to 194°F (10 to 90°C).
11:90