MAXA i-HPV5H 0140, Руководство пользователя

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27
Controllo per i-HPV5
Chillers and Inverter Air/Water heat pumps with axial fan
Parame-
ter
Description Unit Default Range Visibility
Allowed configurations:
Description Notes
*r23
Type of boiler use / 6 0÷6 I See par. 18.6
*r24
Type of use integration re -
sistors
/ 3 0÷3 I See par.18
*r28
Upper limit for joint opera -
tion 2nd band
°C -7 -16÷50 I Respect r22 ≥ r28 ≥ r08
It is recommended
not to change this
value, as this could
compromise the op -
eration of the unit.
*r29
Temperature offset for boil -
er
and system resistors first
set point (HEA)
°C 0 0÷100 I See par.18.6
*r30
Temperature offset for boil -
er and system resistors sec -
ond set point (HEA2)
°C 0 0÷100 I
*r31
Temperature offset for boil -
er and sanitary heating ele -
ments (SAN)
°C 0 0÷100 I
*r32
Boiler equipment / 1 0÷3 I See par. 18.6
*r33
Pump management with ac -
tive resistors
/ 3 0÷3 I
L02
User enablement for mini-
mum Hz
/ 0 0÷1 I
0=Function disabled
1=Function enabled
L03
Minimum Hz active / 6 0÷6 I
See chapter "16. MINIMUM HZ
FUNCTIONS"
**rE01
Enabling DS in chiller / 0 0÷1 l
0=Function disabled
1=Function enabled
(*) If a GI accessory is fitted
(**) if DS accessory is present
24. ALARMS
Some alarms that can occur on the unit are described below. By placing the controller in OFF mode, the alarms reset and the counts of the rel -
ative hour interventions are also reset. If the alarms are still triggered when switching the unit back on, contact technical assistance. The values
indicated below could be subject to updates. If you have any doubts, contact our headquarters.
24.1 [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 does not trigger in the following conditions:
• During domestic hot water production;
• During the plant venting cycle function.
24.2 [E018] HIGH-TEMPERATURE
If the water delivery probe detects a value higher than 65°C for longer than 50 seconds. It deactivates when the temperature returns below 62°C .
24.3 [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.
24.4 [E611÷E682] 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.
24.5 [E691÷E701] TRANSDUCER ALARMS
The alarm is activated if the relevant pressure transducers are faulty or disconnected. This alarm is manual reset.