84 / GB
(*) BUS power supply overload
A BUS power supply overload error may occur due to the con-
nection of three or more devices within the installed system.
Devices which may overload the BUS network include:
- Multizone module
- Solar pump assembly
- Module for instant production of domestic hot water
To avoid overloading the BUS power supply, set microswitch
1 on one of the P.C.B.s inside the equipment connected to the
system (except the Tank) to OFF, as illustrated in the fi gure.
1
ON
OFF
2
microswitch
(**) Table of inverter error codes
in case of an external unit error (HP 939 error code), read the
parameter 17.11.1 and refer to the following table to identify
the cause of the error.
EXTERNAL UNIT ERROR LIST
TDM
ERROR
DESCRIPTION
RESET
HP
POWER
OFF
SERVICE
RESET
905
HP CMP Mismatch Error
x
906
HP FAN Mismatch Error
x
907
HP V4W Mismatch Error
x
908
HP EXV Mismatch Error
x
909
HP Zero Fan Speed
x
947
HP V4W Error
x
912
HP V4W Error Service
x
948
HP TD Error
--
--
949
HP TS Error
--
--
911
HP TE Error
--
--
952
HP TO Error
--
--
913
HP LWT Error
--
--
914
HP TR Error
--
--
916
HP TEO Error
--
--
915
HP COMM TDM Error
--
--
953
HP Compressor Heater
Mismatch
--
--
954
HP Base Panel Heater Mismatch
--
--
956
HP Compressor model
mismatch
--
--
957
HP Fan model mismatch
--
--
922
HP Freeze Error
x
917
HP Freeze Service
--
x
951
HP HIGH TD Error
x
950
HP HIGH TD Service
--
x
918
HP Pump Down Error
--
--
919
HP HIGH SDT Error
x
931
HP INVERTER Error
--
--
INVERTER
ERROR
DESCRIPTION
1ph 3ph
1
Heat Sink-Overheat
x
x
2
Compressor Ipm Over-Current
x
3
Compressor Fail To Drive
x
4
Compressor Over-Current
x
x
5
Input Voltage Lack Of Phase
x
6
Compressor Ipm Current Sampling Failure
x
7
Compressor Drive Capacitors Precharge Failure
x
8
Dc Bus Over-Voltage
x
9
Dc Bus Under-Voltage
x
10
Ac Input Under-Voltage
x
11
Ac Input Over-Current
x
12
Ac Input Voltage Sampling Failure
x
13
Dsp&Pfc Communication Error
x
14
Heat Sink Sensor Error
x
15
Dsp&Mcu Communication Error
x
16
Abnormal Communication With Main Board
x
17
Ipm Module Over-Heat
x
18
Compressor model fault
x
x
19
High Pressure Protection
x
x
21
Fan1 Fail To Drive
x
27
Fan1 Over-Current
x
29
Fan1 1ph Error
x
35
High pressure switch protection
x
x
36
Ow pressure switch protection
x
x
37
Klixon protection
x
x
38
Inter-boards communication error
x
39
IPM over current
x
40
Fail to drive the compressor
x
41
Compressor over current
x
42
IPM current sampling failure
x
43
Heat-sink over-heat
x
44
Fail to Precharge
x
45
DC bus over voltage
x
46
DC bus under voltage
x
47
AC input under-voltage
x
48
AC input over-current
x
49
compressor emergency stop
x
50
AC input voltage sampling fault
x
51
Heat-sink sensor error
x
52
DSP & MCU communication error
x
53
Abnormal communication with IDU control
board
x
Summary of Contents for 3300919
Page 8: ...8 IT 1106 383 1016 670 ø 10 374 1506 383 1016 670 ø 10 374 70 S 70 S T EXT 9 0 110 S T EXT ...
Page 22: ...22 IT SCHEMA ELETTRICO QUADRO UNITÀ ESTERNA 3 ph 1 ph ...
Page 50: ...50 GB 1106 383 1016 670 ø 10 374 1506 383 1016 670 ø 10 374 70 S 70 S T EXT 90 110 S T EXT ...
Page 64: ...64 GB 3 ph 1 ph ELECTRICAL SCHEME BOX OF EXTERNAL UNIT ...
Page 86: ...86 IT ...
Page 87: ...87 IT ...