Viessmann Vitocrossal 300 Service Manual page 65

Vitocrossal 300 CU3A 26 to 57 Service
DHW
(continued)
Coding in the factory setting
65:0
67:40
6F:100
71:0
72:0
73:0
DO NOT ADJUST
For solar DHW heating:
Set DHW temperature
104°F (40°C). Reheating is
suppressed above the selected
set temperature.
Maximum output for DHW
heating in %, specified by
the boiler coding card
DHW recirculation pump: "ON"
in accordance with the time
program
DHW recirculation pump: "ON"
in accordance with the time
program
DHW recirculation pump: "ON"
in accordance with the time
program
Possible change
65:0
to
65:3
67:0 Set DHW temperature
to adjustable from 32 to 203°F
67:95 (0 to 95°C) (limited by boiler-
specific parameters)
6F:0 Maximum output for DHW heating
to adjustable from minimum output
6F:100 to 100%.
71:1 "OFF" during DHW heating
to first set value.
71:2 "ON" during DHW heating
to first set value.
72:1 "OFF" during DHW heating
to second set value.
72:2 "ON" during DHW heating
to second set value.
73:1 "ON" from once per hour for 5
to minutes up to 6 times per hour
73:6 for 5 minutes during the time
program.
73:7 Constantly "ON".
Coding 2
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