Ariston NIMBUS M NET User Manual

26 / GB
(*) BUS power supply overload
A BUS power supply overload error may occur due to the
connection of three or more devices within the installed
system. Devices which may overload the BUS network in-
clude:
- Multizone module
- Solar pump assembly
- Module for instant production of domestic hot water
To avoid overloading the BUS power supply, set micros-
witch 1 on one of the P.C.B.s inside the equipment con-
nected to the system (except the Tank) to OFF, as illus-
trated in the fi gure.
1
ON
OFF
2
microswitch
EXTERNAL UNIT ERROR LIST
TDM
ERROR
DESCRIPTION
RESET
HP
POWER
OFF
SERVICE
RESET
906 HP FAN Mismatch Error x
907 HP V4W Mismatch Error x
908 HP EXV Mismatch Error x
909 HP Zero Fan Speed x
910 HP Comunication error x
911 HP TE Error -- --
912 HP V4W Error Service x
913 HP LWT Error -- --
914 HP TR Error -- --
916 HP TEO Error -- --
917 HP Freeze Service -- x
918 HP Pump Down Error -- --
919 HP HIGH SDT Error x
922 HP Freeze Error x
931 HP INVERTER Error -- --
937 No circulation error x
946 HP compressor error x
947 HP V4W Error x
948 HP TD Error -- --
949 HP TS Error -- --
950 HP HIGH TD Service -- x
951 HP HIGH TD Error x
952 HP TO Error -- --
953
HP Compressor Heater
Mismatch
-- --
954
HP Base Panel Heater Mis-
match
-- --
956
HP Compressor model
mismatch
-- --
957 HP Fan model mismatch -- --
960 HP EWT Error -- --
INVERTER
ERROR
DESCRIPTION 1ph 3ph
1 Heat Sink-Overheat xx
2 Compressor Ipm Over-Current x
3 Compressor Fail To Drive x
4 Compressor Over-Current xx
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 xx
19 High Pressure Protection xx
21 Fan1 Fail To Drive x
27 Fan1 Over-Current x
29 Fan1 1ph Error x
35 High pressure switch protection xx
36 Ow pressure switch protection xx
37 Klixon protection xx
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

Ariston NIMBUS M NET Specifications

General

Type	Air-to-Water Heat Pump
Refrigerant	R32
Power Supply	Electric
Power Supply Voltage	230 V
Connectivity	Wi-Fi
Heating Capacity	6 kW