Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 98

Installation sequence
Electrical connections
Required parameters
Function
External demand
External mixer "OPEN"
External changeover of the oper-
ating status
External blocking, external mixer
"CLOSED"
X3.2
A B
X3.14
A Terminals on cross connect PCB
B Zero volt N/O contact
Breaking capacity 230 V~; 2 mA
98
(cont.)
Parameter Ó setting
No parameters need to be set; the set flow tem-
perature for external demand can be specified
(parameter "Set flow temperature, external
demand 730C", see page 202).
"System definition"
■ "External demand mixer "OPEN" 7014" Ó
"0" to "7" (see page 182). Observe parameter
"Set flow temperature, external demand
730C" (see page 202).
"System definition"
■ "Changing the heating circuit operating
mode 7011" Ó "0" to "10" (see page 177)
■ "Effect of operating mode changeover 7012"
Ó "0" to "3" (see page 179)
■ "Duration of operating mode changeover
7013" Ó "0" to "12" (see page 181)