AERMEC MODUCONTROL Bedienungsanleitung Seite 72

MODUCONTROL
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Code
Alarm code
Pre-alarm
8 108 Water freezing
9 109 No pressing line probe
High discharge gas
10 110
temperature
Flow pressure transducer no
11 111
compressor
12 112 High pressure
13 113 No defrosting probe
Intake pressure transducer no
14 114
compressor
15 115 Low pressure
16 - Low performance
17 117 Pump magnet circuit breaker
18 118 High pressure partialisation
19 119 Low pressure partialisation
Pressing line temperature
20 120
partialisation
72
Causes
This signal occurs when the anti-freeze threshold is reached
(set_installer (6) default: 3°C) from the output water temperature.
The pre-alarm state is exited with outlet water temperature tem-
perature exceeding the set_installer (6) + set_factory (J) (default
3+1=4°C). The anti-freeze alarm is suspended (in heating mode)
for a period of time equal to 3' (set_factory parameter (H)) from
compressor switch on.
This signal occurs when the water outlet probe is disconnected
This signal occurs when the temperature of the pressing line gas
(SGP probe) exceeds the threshold envisioned by the parameter
(set_factory (6), default 135°C). The pre-alarm state is exited with
set_factory (7) temperature (default 135 – 10 = 125 °C)
This signal occurs when the compressor flow transducer is absent
and the machine is set as heat pump or the presence of the DCP
is set
This signal occurs when the transducer detects a flow pressure
over the set-factory parameter threshold (8) (default: 40 bar). The
pre-alarm state is exited with set_factory (8) – set_factory (b) pres-
sure (default 40 – 2 = 38 bar)
This signal occurs when the defrosting probe is absent and the ma-
chine is set as heat pump
This signal occurs when the compressor intake transducer is ab-
sent and the machine is set as heat pump
This signal occurs when the compressor flow transducer indicates
an intake pressure below the threshold set by the set_factory (9)
parameter in cooling mode (default 4 bar), set_factory(A) ion heat-
ing mode (default 2 bar). The pre-alarm state is exited when the
intake pressure exceeds the intervention set_factory(b) thresh-
old default equal to 2 bar. The low pressure alarm is suspended in
heating mode for a period of time equal to 3' (set_factory param-
eter (H parameter) from compressor switch on. It is permanently
suspended during cycle reverse.
Every time the machine is powered, the control checks compres-
sor behaviour once via the yield control procedure (see paragraph
8.1); this control is disabled from dip switch
This signal intervenes if the magnet circuit breaker switch protect-
ing the pump is opened. MTP (table 2, contact ID3, clamps M7.5
– M7.6, normally closed). This code is displayed only if the board is
used as a board spare part with SW up to version 3.6.
This signal occurs every time a partialisation takes place due to
the threshold mentioned in paragraph 8.5 being reached. The ma-
chine blocks in alarm mode when the maximum number of par-
tialisation interventions allowed (expressed by the set_factory (5)
parameter: default 5) is exceeded. With inverter machine mode, it
also indicates a partialisation due to high compression ratio.
This signal occurs every time a low pressure partialisation takes
place, par. 8.5. The machine blocks in alarm mode when the maxi-
mum number of partialisations allowed (expressed by the set_fac-
tory (5) parameter: default 5) is exceeded.
This signal occurs every time a pressing line temperature partial-
isation takes place (par. 8.5), the machine blocks in alarm mode
when the maximum number of partialisation interventions (ex-
pressed by the set_factory (5) parameter: default 5) permitted is
exceeded.
Note