System - Viessmann VITOTRONIC 200 Service Instructions Manual

Diagnosis
System overview
(cont.)
Line Symbol/value
57
F
3412
G

System

Timer
The "Timer" display shows events that end after
expiry of the time displayed. The entire duration of
these events is specified by parameters.
1. Service menu:
Press OK + simultaneously and hold for
å
approx. 4 s.
2. "Diagnosis"
3. "System"
4. "Timer"
Active events
"Start-up time heat pump"
"Min. runtime heat pump"
"Opt. runtime heat pump"
"Min. start time HP"
"Pump run-on time heat
pump"
"Heat pump blocking time"
"Defrost HP (earliest)"
120
Compressor output in %
Compressor
Runtime of compressor in h
Meaning
Advance runtime for fan and secondary pump
Minimum runtime for increasing heat pump efficiency
: 20 min after the end of the last defrosting
event
/ Timespan during which the heat pump must
operate fault-free, before the fault counter in-
side the control unit is reset.
With 2-stage refrigerant circuit: Min. time until a com-
pressor may restart.
Secondary pump run-on time, after which central heat-
ing or DHW heating with the heat pump ends.
Pause to reduce compressor wear
For defrosting by refrigerant circuit reversal:
During the defrost process: Remaining defrost time
■
or
After the defrost process has ended: Blocking time
■
before the next defrosting
Compressor frequency in Hz
A
Timer
Ü
Start-up time heat pump
Min. runtime heat pump
Opt. runtime heat pump
Pump run-on time heat pump
Heat pump blocking time
Defrost HP (earliest)
Delay ht pump OM changeover
Delay DHW/heating
IWB heat pump blocking time
Select with
Fig. 18
Active events
A
Remaining time in s
B
B C
30 20
106 88
6118
14 35
426 125
131
87
960
431
(
Factory-set times
60 or 120 s
30, 180 or 360 s
10 or 20 min
20 min
120 s
180 or 600 s
Vitocal 100-S/
■
111-S:
No value specified
Vitocal 200-A/200-
■
S/222-A/222-S:
30 min
Vitocal 300-A, type
■
AWO 302.B:
60 to 75 min