36
Load class assignment:
Load class
Hours run at
∆
T
V/K
1
Δ
T
V/K
< 25 K
2
25 K <
Δ
T
V/K
< 32 K
3
32 K <
Δ
T
V/K
< 41 K
4
41 K <
Δ
T
V/K
< 50 K
5
Δ
T
V/K
>
50 K
Δ
T
V/K
Differential between evaporation and condensa-
tion temperature
Refrigerant circuit
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
+
å
simultaneously and hold for
approx. 4 s.
2. "Diagnosis"
3. "Refrigerant circuit"
4. "Refrigerant circ controller"
Notes
■
The symbols on the display are animated if the com-
ponents are operational (e.g. compressor).
■
The values shown are examples.
Refrigerant circuit
Back with
C
A
F
H
B
G
100%
51.0°
26.1°
tc:33.0°
35.5°
116.5°
6.0°
tO:
M
N
P
33.6bara
-11.5°
4.6bara
D E
tO:-4.0°
10.0°
-4.0°
K
8.2K
8.0K
L
Q
R290
Fig. 15
Pos.
Refrigerant circuit in heating mode
A
Secondary circuit flow temperature in °C
B
Hot gas temperature in °C
C
Hot gas pressure in bar(a)
Compressor
Animated symbol: Compressor is running.
D
Suction gas temperature in °C
E
Suction gas pressure in bar(a)
Value underlined:
Pressure control for suction gas active, max.
operating pressure of evaporator (MOP) excee-
ded
Pos.
Refrigerant circuit in heating mode
F
Refrigerant
G
Primary circuit flow temperature in °C
Primary pump: Not connected
Animated symbol: Signal output is being
switched.
H
Evaporation temperature in °C
Value highlighted white: Evaporation tempera-
ture, set value in °C
K
Primary circuit return temperature in °C
Diagnosis
Heat pump
(cont.)
5800 917 GB
Diagnosis
