Alarms; E006] Flow Switch; E018] High Temperature; E005] Antifreeze - MAXA i-32V5C MIDI 0121 Manual

Parame-
Description
ter
Upper limit Joint function I
r22
band
r23
Type of boiler use
Type of use integration re-
r24
sistors
Upper limit for joint opera-
r28
tion 2nd band
Temperature offset for boil-
er
r29
and system resistors first
set point (HEA)
Offset temperatura per cal-
daia
r30
e resistenze impianto sec-
ondo set point (HEA2)
Temperature offset for boil-
er
r31
and sanitary heating ele-
ments (SAN)
r32
Boiler equipment
Pump management with ac-
r33
tive resistors
User enablement for mini-
L02
mum Hz
L03
Minimum active Hz
rE01
Enabling DS in chiller
23.

ALARMS

Some of the alarms that may occur on the unit are described below. When the control is switched off, the alarms are reset and the counts of the
relevant operations are also reset. If the alarms are still present when the machine is switched on again, contact technical assistance. The above
information may be subject to updates, in case of doubt please contact the company.
23.1 [E006] FLOW SWITCH
The water-side flow switch is already installed inside the unit and must not be tampered with or bypassed in any way.The flow switch is bypassed
by the control for a period of 10 seconds from the start of the machine, after the bypass time the status of the digital input is considered, if it is
active the presence of flow is considered. If a lack of flow is diagnosed for a time of at least 5 seconds, the alarm is active and the circulator is
activated for 120 seconds.
Once the flow of water is restored, the alarm is automatically reset, but if the alarm occurs more than 3 times per hour, the reset becomes
manual.
The alarm is not active in the following conditions:
• during domestic hot water production;
• during the system venting function.
23.2 [E018] HIGH TEMPERATURE
If the water delivery probe detects a value higher than 65°C for longer than 50 seconds the alarm is active. It deactivates when the temperature
returns below 62°C.
23.3 [E005] ANTIFREEZE
If the outlet water probe has a value lower than A08 (default A08 = 3,0°C), the alarm is active. The deactivation occurs if the temperature re-
corded by the same probe is higher than A08 + 3,0°C (default 6,0°C). The alarm is bypassed for 120 seconds after switching on in heating mode.
This alarm is manual reset.
23.4 [E611÷E681] PROBE ALARMS OR PRESSOSTAT
The corresponding alarm is activated if any connected and enabled probe is short-circuited or interrupted. The alarm is also active if the upper
limit of the probes (150C) or the lower limit (-50°C) is exceeded. A probe configured as a DHW probe does not give rise to an alarm if DHW pro-
duction is not enabled.
NOTE:
•Error E641 also appears when the pressure switch on the machine detects a pressure higher than 42.8 ±1 bar. In this case
the driver and compressor are immediately disconnected. The alarm is reset when the pressure drops below 34 ±1 bar.
•Error E651 also appears if the fan thermal protection is triggered
Controllo per i-32V5 MIDI
Unit Default Range
°C 7 -16÷50
/ 6 0÷6
/ 3 0÷3
°C -7 -16÷50
°C 0 0÷100
°C 0 0÷100
°C 0 0÷100
/ 1 0÷3
/ 3 0÷3
/ 0 0÷1
/ 6 0÷6
/ 0 0÷1
Air/water inverter chillers and heat pumps with axial fans
Allowed configurations:
Visibility
Description
I Respect r22 ≥ r28 ≥ r08
I See par. 18.6
I See par.18
I Respect r22 ≥ r28 ≥ r08
I See par.18.6
I
I
I See par. 18.6
I
0=function disabled
I
1=function enabled
See chapter "16. MINIMUM HZ
I
FUNCTIONS".
0=function disabled
1=function enabled
Notes
It is recommended
not to change this
value, as this could
affect the operation
of the unit
It is recommended
not to change this
value, as this could
affect the operation
of the unit
27