RDZ UMHPI, Руководство пользователя

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UMHPI
Industrial inverter air/water heat pumps with axial fans
11
7.2 SETPOINT ADJUSTMENT FROM 0-10V INPUT
Another type of setting that allows to change the setpoint by adding (or subtracting) a value in function of the 0-10V analogue
input (if enabled). To enable the function, you must set the
H21 parameter to be 40 , and change the values of the parameter b15
(range 0-10), taking into account that:
- if the input is at 0 volts you will have the actual set point: set point (Coo/Hea) - b15/2 .
- if the input is at 5 volts the set point will be the set of (Coo/Hea) mode.
- if the input is 10 volts you will have the actual set point: set point (Coo/Hea) + b15/2.
The 0-10V signal must be applied to the terminals AI10+ and AI10- (see the wiring diagrams).
Note: In "cooling" mode, considering that the setpoint by default is set to be 7°C, the parameter ( b15) should not assume any
value greater than or equal to 6 in order to prevent that the new setpoint set from 0-10V input to take values below the threshold
of the antifreeze operation which is 4°C. Please see paragraph 11.4 for changing the parameters.
7.3 CIRCOLATOR
The circulator of the pump can be set according to one of the following operation modes:
- Operation by thermo-regulator (default)
- Operation by thermo-regulator with periodic activation
- Continuous operation
The circulator SHUTDOWN immediately if:
−
There is a lock pump alarm including the manual reset flow switch alarm. See paragraph 12.1.
−
The unit is in stand-by mode or when it’s switched off from remote input (when it’s turned ON) It always turned off with a
delay equal to P02.
The circulator is always running if the antifreeze heaters are ON.
The circulator can be configured with the parameter
P03 in order to operate independently than the compressor or under call.
0 = Continuous operation
1 = Operation under the thermoregulatory call
Note: Whenever the flow switch alarm is automatically reset the pump is ON even if the compressor is off.
Contrarily, the circulator remains always in operation if the antifreeze heaters are on or when the hydraulic pump operates in
antifreeze mode. The operation in antifreeze mode will start if the water setting temperature decreases below
P04 °C (default
value 5°C), and it will be disabled if the water setting temperature increases above P04+P05 °C (the default value of P05 is 2,0°C ).
Heating