Viessmann VITOTRONIC 200 Installation And Service Instructions Manual page 55

Vitotronic 200 and 300-K Installation and Service
"DHW" Group
(continued)
Coding in the factory set condition
67:40 With the Vitosolic:
Third set DHW temperature 104° F (40° C).
Reheating will be suppressed above the
selected temperature. The DHW tank is heated
exclusively by the solar thermal system.
68:8 With 2 DHW tank temperature sensors (code
"55:2"):
DHW tank heating stop point at set value x 0.8
69:7 With 2 DHW tank temperature sensors
(code "55:2"):
DHW tank heating start point at set value x 0.7
6A:75 Runtime, servomotor, mixing valve, heat
exchanger set, Vitotrans
222, 80 and 120 kW:
75 sec.
70:0 DHW circulation pump "ON" according to time
program when DHW heating is enabled
71:0 DHW circulation pump: "ON" according
to time program
72:0 DHW circulation pump: "ON" according
to time program
73:0 DHW circulation pump: "ON" according
to time program
75:0 DHW circulation pump "ON" during economy
mode according to time program
Possible change
67:0 Without third set DHW temperature
67:1 Input of the third set DHW temperature;
to adjustable from 34 to 203° F (1 to 95° C)
67:95 (subject to boiler coding card of the connected
boilers)
68:2 Factor adjustable from 0.2 to 1;
to 1 step 0.1
68:10
69:1 Factor adjustable from 0.1 to 0.9;
to 1 step 0.1
69:9
6A:10 For heat exchanger set
to Vitotrans 222, 240 kW: set 113 sec.
6A:255 Runtime adjustable from 10 to 255 sec.
70:1 DHW circulation pump "ON" according to time
program
71:1 "OFF" during DHW heating to the first set
value
71:2 "ON" during DHW heating to the first set value
72:1 "OFF" during DHW heating to the second set
value
72:2 "ON" during DHW heating to the second set
value
73:1 During time program 1x/h for 5 min. "ON"
to to
73:6 6x/h for 5 min. "ON"
73:7 Constantly "ON"
75:1 DHW circulation pump
"OFF" during economy mode according to time
program
Code 2
55