Viessmann VITOTRONIC 200 Service Instructions Manual page 145

Refrigerant circuit
(cont.)
Refrigerant circ controller
The following information can be called up:
Refrigerant circuit temperature and pressure values
■
Refrigerant circuit operating conditions
■
1. Service menu:
Press OK + simultaneously and hold for
å
approx. 4 s.
2. "Diagnosis"
A B
Refrigerant circuit
115.7°
35.5°
100%
U
100%
T
tc:33.0°
S
26.1°
Back with
R
Fig. 31 Refrigerant circuit in heating mode, heat gen-
eration at condenser
Pos. Refrigerant circuit in heating mode
Secondary circuit flow temperature upstream of instantaneous heating water heater in °C
A
B Hot gas temperature (upstream of condenser) in
°C
Hot gas temperature (downstream of compressor)
C
in °C
Hot gas pressure in bar(a)
D
Compressor speed in %
E
Compressor
Animated symbol: Compressor is running.
■
When the refrigerant circuit is reversed the symbol appears turned by 180°.
■
Suction gas temperature in °C
F
G —
R410A Refrigerant
Air intake temperature in °C
H
Fan
Animated symbol: Fan is running.
Fan speed in %
K
[7] / [7-1]
C D E
116.5° -11.5°
117/s
33.6bara 4.6bara
1/36
51.0 100% 21.0°
P O N M
3. "Refrigerant circuit"
4. "Refrigerant circ controller"
Notes
■ The symbols on the display are animated if the com-
ponents are operational (e.g. pumps).
■ The values shown are examples.
F G
R410A
6.0°
H
65%
K
tO:-4.0°
L
Refrigerant circuit reversal
Suction gas temperature in °C
Suction gas temperature (upstream of compressor)
in °C
—
Hot gas temperature in °C
Condensing pressure in bar(a)
Diagnosis
145