MAXA i-MAX 0466, Руководство пользователя

Страница: 18 / 36

i-MAX
Industrial inverter air/water heat pump with axial fans
18
9.3 ALARM SIGNALIZATION
It is possible to configure an under-voltage output for alarm signalization.
To enable this function, enter at the page of the parameters PRG

PSS

PRG

(introduce the maintainer password)

PRG

PAr

PRG

CnF
See paragraph 11.2.
Parameter Unit Value Description Terminals Notes
H88
num
24
Under-voltage output for alarm
alert
DO3E(phase)
DO3E N(neutral)
Under voltage output single phase 230Vac,
50Hz, 2A (AC1), for connection to the relay
coil for obtaining a free contact.
9.4 Heat pump lockout signalization
It is possible to configure a digital output for the heat pump unit lockout warning.
The output switches will be activated if one of the following alarms is active with the following conditions:
To enable this function, enter at the page of the parameters PRG

PSS

PRG

(introduce the maintainer password)

PRG

PAr

PRG

CnF
See paragraph 11.2.
Parameter Unit Value Description Terminals Notes
H88 num 47
Under-voltage output for heat
pump unit alert
DO3E(phase)
DO3E N(neutral)
Under voltage output single phase 230Vac, 50Hz, 2A (AC1), for
connection to the relay coil for obtaining a free contact.
9.5 ENABLEMENT OF DOMESTIC HOT WATER PRODUCTION (DHW)
In sanitary mode, the maximum serviceable capacity is employed (as if the thermoregulator is requiring always the 100% of
capacity). However, the various limitations of the maximum frequency associated with the envelope and the limitation for
maximum electrical absorption are active.
To make active this function, it is necessary to connect to
ST2E – ST2E
terminals (enabled as analog input) a temperature sensor
which should be placed inside the water tank. Once connecting and placing the sensor, then it is necessary to enable the domestic
hot water function.
To enable this function, enter at the parameters PRG

PSS

PRG

(introduce the maintainer password)

PRG

PAr

PRG

CnF .
I/O port – Parameter Value Function
H10
0 (default) The function is not active
1
Active function in heating and cooling mode.
The remote switching on-off function
doesn’t deactivate
the domestic hot water production (DHW).
2
The function is active in
heating and cooling
mode.
The remote switching on-off function deactivates the domestic hot water production (DHW)
3
The function is active in heating mode.
The remote switching on-off function
doesn’t deactivate
the domestic hot water production (DHW).
4
The function is active in
heating
mode.
The remote switching on-off function deactivates the domestic hot water production (DHW)
5
Active function in cooling mode.
The remote on-off function doesn’t deactivate the domestic hot water production (DHW).
6
Active function in cooling mode.
The remote on-off function deactivates the domestic hot water production (DHW).
H61 6 Activation of domestic hot water temperature sensor DHW (ST6E terminals)
H90 6 DHW valve command
b03 3°C Band in sanitary mode
If the DHW temperature is below the set point value (
PRG->Set->SAN
), the unit activates the sanitary valve and the compressor
will be placed at the maximum frequency starting the modulation at 1°C before (setpoint-1°C) the set value and it stops at 1°C
after the set value (s1°C). Once achieved the set point value, the valve switches to the stand-by mode and the
compressor works normally.
While shifting from user’s to domestic hot water, the operating sensor changes from “ outlet water temp. sensor ” to “ sanitary
tank temp. sensor ”. While shifting from the winter operating mode to the sanitary operating mode, the compressor does not stop
operation, and will be placed at the maximum established frequency which can be controlled; however, when shifting from the
summer operating mode to the sanitary operating mode, the compressor will stop operation for waiting for the safe period.
The defrost cycle during winter operation mode is always performed on the user side, never on the sanitary water tank.
Note:
− If
H10 = 1/3/5,
the remote shutdown of the unit (remote on-off) or from the on-board unit controller, or from the remote
control panel has no effect on sanitary operating mode. The unit will be placed in sanitary mode as setting priority after its
power on. The on-board unit display shows the temperature measured by the sensor placed inside the sanitary water tank.
Once the sanitary cycle is completed, the display turns back to show the temperature of the outlet water sensor.
− If the remote ON-OFF digital input (onoff-onoff terminals) is open, with enablement of the function of domestic hot water
( H10=1 ), the display on-board unit shows the code " SAN ". Once the sanitary cycle is concluded, the display returns to show
the code " E00 " indicating that the remote ON-OFF contact is open.