MAXA i-2V514T, Руководство пользователя

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29
i-32V5
Pompe di calore inverter aria/acqua con ventilatori assiali
Factory-set parameters.
Default features of the mixer valve
Type of regulation 3 points
Supply voltage 230Vac / 50Hz
Power input 2.5W
Twisting moment 5Nm
Rotation time 140 sec
Note
: Live 230V ac, 50Hz, 2A (AC1) DO 1E and DO 2E digital outputs. For higher absorptions, connect the output to the contactor coil.
12.4 SOLAR INTEGRATION MANAGEMENT
To enable te function, set S01=1.
Parameter Description Value Function XGI terminals
ST6E can be activated via
H28
Analogue input 39 Solar storage tank probe 2.1 / 2.2
ST7E can be activated via
H29
Analogue input 38 Solar collector probe 2.1 / 2.2
DO3E can be activated via
H88
Live output 30 Solar circulator 7.1 (phase) 7.2(neutral)
DO4E can be activated via
H89
Live output 45 Solar exhaust valve 8.1 (phase) 8.2(neutral)
12.4.1 Activation of solar circulator
Solar management is also active with the unit off.
The solar circulator is active in both of the following conditions are met:
• The temperature of the solar collector is higher than that defined by parameter
S13
(default 40°C), the solar circulator is activated;
• The temperature difference between the solar collector and that of the solar storage tank is higher than the parameter S02 (default 6°C).
12.4.2 Collector protection
If the temperature of the collector exceeds parameter
S04
(default 110°C), the solar circulator is periodically on intermittently with the times
set in:
• S05 = time ON (default 15 seconds);
•
S06
= time OFF (default 15 seconds).
As hysteresis to exit the protection condition use
S08
(default 2°C).
This protection is guaranteed even with the machine Off.
12.4.3 Collector overtemperature alarm
If the collector probe exceeds the value of parameter S12 (default 130°C), there is an alarm condition E10 which blocks the solar circulator. The
hysteresis to return from the alarm condition is given by parameter S08 (default 2°C).
If an alarm is triggered, operation of the heat pump is guaranteed.
12.4.4 DHW overtemperature alarm
If the temperature of the DHW storage tank exceeds the parameter
S10
(default 80°C), the alarm
E50
is triggered.
The hysteresis to return from the alarm condition is given by parameter S11 (default 2°C).
If an alarm is triggered, operation of the heat pump is guaranteed.
12.4.5 Solar exhaust valve
If alarms E10 and E50 are triggered simultaneously, the solar exhaust valve will be activated.
It is recommended to connect the output of terminals 8.1 (phase) – 8.2 (neutral) to a timed relay to manage the flow of the exhaust valve. If
any doubts arise, contact our headquarters.
12.4.6 Dissipation of solar tank heat
The solar circulator runs to dissipate excess heat in the storage tank by exploiting the solar collector if both of the following conditions are met:
-The temperature of the DHW storage tank is higher than parameter S15 (default 60°C);
-The temperature of the solar collector is lower than 35°C (parameter S13 – parameter S14).
-The solar collector is off when at least one of the following conditions is met:
-The temperature of the DHW storage tank is lower than parameter S15 (default 60°C).
-The temperature of the collector exceeds the parameter S13 (default 40°C), as conditions are no longer in place for proper dissipation of the
heat.
12.4.7 Antifreeze
Function active if the parameter S01 = 1.
If the temperature of the solar collector is lower than parameter S07 (default 5°C), the solar circulator is activated in antifreeze mode.
This protection is only enabled with the machine Off.
The function is inhibited if the temperature of the DHW storage tank is lower than the value defined in parameter S16 (default 20°C).
This regulator also works with the unit Off.