Compressor Path - Viessmann VITOTRONIC 200 Service Instructions Manual

Refrigerant circuit
(cont.)
1. Service menu:
Press OK + simultaneously and hold for
å
approx. 4 s.
2. "Diagnosis"
3. "Refrigerant circuit"
4. "Compressor travel" for single stage heat pump
or
"Compressor travel 1" for compressor 1 with 2-
stage refrigerant circuit or
"Compressor travel 2" for compressor 2 with 2-
stage refrigerant circuit
to: 8 tc: 50
tc
70
50
30
10
-30 -20 -10 0
Select with
B
Fig. 32
Diagram applicability:
A
1 Heat pump or compressor 1 with 2-stage refrig-
erant circuit
2 Compressor 2 with 2-stage refrigerant circuit
Compressor application limits
B
t0 Evaporation temperature
tc Condensing temperature
trun Compressor runtime for currently selected grid
field

Compressor path

The diagram of the evaporation and condensing tem-
perature shows the movement of the refrigerant circuit
operating point (compressor path) for the last hour run.
The compressor application limits pictured in the dia-
gram show whether, and how often, the application
limits of the refrigerant circuit parameters have been
exceeded in the last hour run.
1. Service menu:
Press and hold OK +
approx. 4 s.
2. "Diagnosis"
A
1
trun: 240 min.
to
10 20 30
simultaneously for
å
Calculating runtimes
1. Use / to position the cursor (crosshairs) at the
required place in the diagram.
2. Read off the values in the top line.
3. "Refrigerant circuit"
4. "Compressor path" for single stage heat pump or
"Compressor path 1" for compressor 1 with 2-
stage refrigerant circuit or
"Compressor path 2" for compressor 2 with 2-
stage refrigerant circuit
Diagnosis
147