TESY EVHP 9S 260 60 Instructions For Use Manual page 46

AL Minimum temperature alarm
Solution:
- Check the temperature associated with the
alarm;
- Parameters displayed: A0, A1, A2 and A11.
Main consequences:
- The equipment will continue to work as nor-
mal
AH
Maximum temperature alarm
Solutions:
- Check the temperature associated with the
alarm;
- Parameters displayed: A3, A4, A5 and A11.
Main consequences:
The equipment will continue to work as nor-
-
mal.
id
Digital input alarm
Solutions:
- Check the causes that originated the input
activation (possible short circuit in signal cables)
- See parameters: i0; i1 and i2; Main
consequences:
- Compressor will be switched off; - Defrosting
will not be activated.
iSd
Blocked equipment alarm
Solutions:
- Check the causes that originated the digital
input activation
- See parameters: i0; i1; 18 and i9
- Switch the equipment off and then back on
again or disconnect the equipment from the
mains power supply.
Main consequences:
- Compressor will be switched off;
- Defrosting will be never activated.
FiL Ventilation filter check alarm
Solutions:
- Check how clean the filter is (to switch off the
alarm message, press any key on the display)
UtL Probable fan fault
Solutions:
See parameters SP10 and C14
-
- Check the fan conditions Main consequences:
- Compressor and fan are switched off;
- Water heating occurs using only the electric
resistance.
When the cause of the alarm has been
removed, the
equipment is restored.
normal operation of
7.1.3.12 Error messages
Pr1 Error in probe in upper part of the boiler
Solutions:
Check that the type of probe is in conformity
-
with parameter P0 settings;
Check the probe is intact;
-
- Check the equipment-probe connection;
Check the temperature of the upper part of the
-
boiler.
Main consequences:
- The equipment stops working.
Pr2 Error in probe in lower part of the boiler
Solutions:
The same as the previous situation but
-
relating to the probe in the lower part of the
boiler.
Main consequences:
The equipment stops working.
-
Pr3 Error in evaporator probe
Solutions:
The same as the previous situation but
-
relating to the evaporator probe.
The equipment stops working.
-
When the cause of the alarm has been
removed, the normal operation of the equipment
is restored.
7.1.3.13 Defrosting
Defrosting can be enabled in the following way:
• Automatically, when the temperature of the evaporator is
below that established in parameter d17 (only if P4
has a value other than
0);
In any case, between one defrosting procedure and
another, the compressor must have been left switched on
for a period either longer than or equal to d18 minutes.
Otherwise the request to enable the defrosting procedure
will not be accepted.
If P4 = 1, d2 represents the temperature of the evaporator,
above which the defrosting procedure is terminated. Vice
versa, if P4 = 0 or P4 = 2, parameter d2 is not taken into
consideration.
If during the defrosting procedure the evaporate or probe
is above the threshold set by means of parameters d2 and
the
P4 = 1, the request to enable the defrosting procedure is
not accepted.