RDZ UMHPI, Руководство пользователя

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UMHPI
Industrial inverter air/water heat pumps with axial fans
24
(*) Alternatively, it is possible to use another output DO or OC, see paragraph 6.5.
8.1.2 AUXILIARY ELECTRIC HEATER OF THE PLANT IN DEFROST CYCLE
During the defrosting cycle (see Paragraph 7.6), by setting r21=1 (in addition to r10=1 and r24=1 or 3 ) the electric heater of the
plant side will be activated if required (regulating temperature lower than the water setpoint - r11 (°C) ), without waiting for the
time defined by r12 .
8.1.3 AUXILIARY ELECTRIC HEATER OF DHW PRODUCTION
It is an additional energy resource for the domestic hot water tank heating when the compressor is not able to reach alone the set
temperature within a reasonable time.
To activate such function, you should enter into the parameters
CnF and rF using the service password.
Parameter Unit Value Description Terminals Notes
*H64 Num
26
(default)
Undervoltage output DHW
auxiliary electric heater DO2E (L: Live)
DO2EN (N: Neutral)
Undervoltage output 230V ac, 50Hz, 5A resistive, 1A inductive.
Should be connected to the relay coil in order to get a free
contact.
r15 Num 1 Function enablement - -
r16 Min
10
(default)
Activation delay of auxiliary
DHW electric heater
- -
r24 Num 2 o 3
Type of utilization of the
heater
- -
(*) Alternatively, it is possible to use another output DO or OC, see paragraph 6.5.
The heater is activated when the parameter r15 is set to 1 (with r15=0 the electric heater is disabled).
If the production of DHW hot water lasts for a period of time greater than r16 (minutes) and the unit gets blocked due to an alarm
intervention, the electric heater will be enabled. It turns off when the unit concludes the DHW production. The auxiliary DHW
electric heater can also be activated with the heat pump is running if the machine is in joint operation or in substitution operation
indicated in the Paragraph 8.2. To change the parameters you can check the paragraph 11.11.
8.1.4 SINGLE AUXILIARY HEATER FOR PLANT/DHW PRODUCTION
By configuring the auxiliary electric heater for DHW production with the use of the following setting r15=2, when the auxiliary
electric heater is required for DHW production and/or plant heating side and/or plant in defrosting mode, the electric heater that
is declared for DHW production will be activated allowing you to get a single auxiliary electric heater.
8.1.5 SELECTION MODE OF AUXILIARY ELECTRIC HEATERS
It is possible to set the activation order priority of the auxiliary electric heaters of the plant side and of DHW side as described
below:
r14=0 (default), the heaters are activated simultaneously if they are present;
r14=1 , the heaters are activated excluding each other:
r20=0 , the priority is for the plant (the domestic electric heater will operate only if the thermoregulation for the
heater of plant side is accomplished);
r20=1 , the priority is for the DHW (the heater of the plant side will operate only if the thermoregulation of the DHW heater
is accomplished).
8.1.6 MANAGEMENT OF THE CIRCULATOR WITH ACTIVE ELECTRIC HEATER
It is possible to activate the circulator of the heat pump when the plant system and/or the DHW auxiliary electric heaters are
active in the absence of compressors operations (for substitution, for alarm or for integration in band II or III).
To enable such function, you should enter into the parameters
Fro using the service password.
•
r33 = 0: The circulator of the heat pump will be activated upon request of the compressors or by the boiler.
•
r33 = 1: The circulator of the heat pump will be activated if the plant circuit electric heater is active.
•
r33 = 2: The circulator of the heat pump will be activated if the DHW electric heater is active.
•
r33 = 3: The circulator of the heat pump will be activated if the plant system electric heater or if the DHW electric heater is
active.
The circulator will stop operation after the post-pumping ( P02 ). To change the parameters, please see paragraph 11.11.
8.2 BOILER ENABLEMENT
It is an additional resource that enables the boiler in integration or in substitution of the heat pump.
To change the parameters, please see paragraph 11.11. Select the operating mode by setting the parameter “
r23 ” as below:
- r23=0 (default) boiler not used (priority of intervention is for electric heaters);
- r23=1 boiler used just on plant side (priority of intervention is for electric heaters);
- r23=2 boiler used just for DHW hot water (priority of intervention is for electric heaters);
- r23=3 (default) boiler used for both DHW hot water and plant sides (priority of intervention is for electric heaters);
- r23=4 boiler used only for plant side with priority (no intervention priority for electric heaters);