156
Position
Code
Explanation
10
1
Maximum operating pressure (MOP) was reached; control type
(superheating/evaporation pressure control) in refrigerant cir-
cuit was adjusted.
2
Fault due to impermissible combination of refrigerant circuit
conditions. A serious EEV controller fault has occurred, as the
heat pump control unit only transfers permissible parameter
combinations to the EEV controller.
Example:
Information index
"0C : 0C 00 00 00"
Posi-
tion
Display
Codes
(Tab.
C
)
Explanation (Tab.
E
)
1
"0"
0
—
2
"C"
4
High pressure sensor faulty, determined from a
plausibility check of values
8
Hot gas temperature sensor faulty, determined
from a plausibility check of values
—
":"
—
—
3
"0"
0
—
4
"C"
4
High pressure sensor faulty, reported directly from
EEV controller
8
Hot gas temperature sensor faulty, reported
directly from EEV controller
5
"0"
0
—
6
"0"
0
—
7
"0"
0
—
8
"0"
0
—
9
"0"
0
—
10
"0"
0
—
Temperature and pressure values
Most recent temperature and pressure values captured in primary and secondary
circuits.
Troubleshooting
Control unit diagnostics
(cont.)
5414 828 GB
Summary of Contents for VITOCAL 350-A
Page 54: ...54 5 3x 7 6 3x 3x 3x Installation sequence Fitting the outer panels cont 5414 828 GB ...
Page 58: ...58 2x 10 11 3x 3x Installation sequence Fitting the outer panels cont 5414 828 GB ...
Page 62: ...62 Type AWH I 1 Installation sequence Installing the heat pump cont 5414 828 GB ...
Page 228: ...228 052 054 059 008 056 025 020 Parts lists Parts list type AWH I cont 5414 828 GB ...
Page 236: ...236 053 032 039 034 038 033 034 039 027 Parts lists Parts list type AWH O cont 5414 828 GB ...
Page 237: ...237 052 054 059 008 055 025 020 Parts lists Parts list type AWH O cont 5414 828 GB Service ...