Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 142

Coding – Vitotronic 100, GC1
Coding 2
(cont.)
Coding in the factory setting
Boiler
0C: 5 Isolation valve modulating independently
Isolation valve modulating independently
of set boiler water temperature of set boiler water temperature
0d: 2
With Therm-Control, affects isolation valve With Therm-Control, affects isolation valve
(function inactive, if 0C : 1 is programmed) (function inactive, if 0C : 1 is programmed)
Boiler/burner
*1
13:
Shutdown differential in ˚C / ˚F Shutdown differential in ˚C / ˚F
Burner is switched OFF when the set boiler Burner is switched OFF when the set boiler
water temperature is exceeded
Burner
*1
14: Minimum operating time in minutes
Burner (mod.) (see page 79)
15: 10 Burner actuator run time
10 seconds
*1
The factory setting is defaulted by the boiler coding card.
142
Possible change
0C: 0 No function
0C: 1 Constant control of return temperature
0C: 2 Controlled with time-delay isolation valve
0C: 3 Isolation valve controlled via boiler water
temperature
0C: 4 Isolation valve modulating subject to set
boiler water temperature
0d: 0 Without Therm-Control
0d: 1 With Therm-Control, affects mixing valves
of downstream heating circuits
13: 0 Without shutdown differential
13: 2 Shutdown differential adjustable from 2 to 20 ˚C /
3.6 to 36 ˚F
to
13: 20
14: 0 Minimum operating time adjustable from 0 to 15
to minutes
14: 15
15: 5 Operating time adjustable from 5 to 199 seconds
to for Vitocrossal 300 with MatriX burner
15:199 Set
Type CM3 and CU3: 15 : 64
Type CV3: 15 : 19