Viessmann VITOTRONIC 200 Service Instructions Manual page 118

Diagnosis
System overview
(cont.)
Column qI : Cooling
Line Symbol/value
A
14
B
C 13
13
D
14
E
F
G
H
C
H
Column : Mechanical ventilation
qO
Line Symbol/value
A
65
B
C
170
D
23
E
21
F
170
G
3
H
K 96
Column : External functions
wP
Row Symbol/value
2
A
30
D
G
50
H
100
K
118
Cooling
Set coolant buffer temperature in °C
Coolant buffer temperature in °C
Set cooling flow temperature in °C
Cooling flow temperature in °C
Cooling with coolant buffer cylinder
Natural cooling
—
—
—
—
Mechanical ventilation with connected ventilation unit
Preheating coil output in %
Passive heating
Passive cooling
Set supply air flow rate in m
Supply air temperature in °C
Extract air temperature in °C
Set exhaust air flow rate in m
Exhaust air temperature in °C
Heat recovery level in %
External demand, external blocking, external switching of operating status
Set secondary circuit flow temperature for all external heating circuit control units in
°C
External demand active
External blocking active
Operating status, external changeover
Secondary circuit set flow temperature with external demand in °C: See chapter
"External functions".
Requested heating output in %
—
Bypass, heating water buffer cylinder
Central heating with heating water/coolant buffer cylin-
der
Central cooling with heating water/coolant buffer cylin-
der
Active cooling with refrigerant circuit reversal or de-
frosting
3 /h
3 /h