Message History [2] - Viessmann VITOTRONIC 200 Service Instructions Manual

Diagnosis
Refrigerant circuit
tc
70
2
50
30
1
10
-30 -20 -10
Back with
C
Fig. 33
Compressor application limits
A
Diagram applicability
B
1 Heat pump compressor 1 with 2-stage refriger-
ant circuit
2 Compressor 2 with 2-stage refrigerant circuit
Stop times of the compressor (1 to N)
C
t0 Evaporation temperature
tc Condensing temperature
Message history [2]
For refrigerant circuit controller [2]: For differentiating
between the refrigerant circuit controllers, see chapter
"System information".
Message history of the refrigerant circuit controller
(status and fault information):
■ Messages cannot be acknowledged in the message
history.
Messages are listed in chronological order. The most
■
recent message is listed first.
■ Up to 30 entries are stored.
1. Service menu:
Press OK + simultaneously and hold for
å
approx. 4 s.
2. "Diagnosis"
3. "Refrigerant circuit"
4. "Message history"
Message overview
Note
Some faults should only be remedied by a (specialist)
heating contractor certified for heat pumps by
Viessmann.
148
(cont.)
A B
1
to
0 10 20 30
ä
A B
Message history
0 09.09.2009 17:16:00
1 09.09.2009 17:16:01
2 09.09.2009 17:16:02
3 09.09.2009 17:16:03
Back with
Fig. 34
Message number
A
Date and time of the last occurrence
B
2-digit message code
C
Type of message: "Note" or "Fault"
D
Frequency of occurrence
E
Refrigerant circuit controller messages can trigger a
message at the heat pump control unit (see "Message
overview"). Which message will be triggered at the
heat pump control unit depends on the type of mes-
sage at the refrigerant circuit controller.
C D E
06 Fault 7
0A Fault 3
03 Note 11
10
Fault
1