When you press and hold for a few seconds the sleep mode button (standby) on the main screen of the controller, the
installation actuators are disconnected. The anti-freezing function remains active - in the event of temperature drop
below the
certain threshold the heat pump or the heater enables. This button is used when it is necessary to shut off
immediately all the
devices.
In order to ensure the maximum safe and defect-free operation the regulator has several security features. In the event
of an
alarm the audible signal enables and a corresponding message appears on the display.
In the ST-520 controller before and during the heating season check the technical condition of the wiring. Check also
the
controller mounting, clean of dust and other pollutants.
User of device are requested at lest in a year to make service activities, which should including for example:
•
cleaning of vaporizer
•
cleaning case and the base of heat pump
•
cleaning filter localized in hydraulic instalation
•
check of electric patches
Attention: Before start service activities you should disconnect heat pump and electric grid!
Heat pump is protected by pressure switches with automatic reset, installed in refrigerant circuit by side of low and high
pressure. Pressure switches are connected direct to the driver. Freeing any of the pressure switches cause stop
working of circulation pump and appearance sound signal.
Additional air-compressor is safed by the sensor of hot gas.
The heat pump DROPS
D
4.1 was designed to work with the installations of photovoltaic panels and operating in energy
tariffs. The controller has an additional potential-free NO contact. After triggering the contact the heat pump and HUW
tank
loading is enabled up to the daily set-point temperature.
After the shelf life of the device, you should contact a person with the appropriate permissions in the field of recovery
and disposal/utilization of controlled substances.
After emptying the device from the refrigerant the device can be given to disposal/utilization and / or individual
components can be recycled.
5.21
Sleep Mode
6.
Security and Alarms
7.
Maintenance
8.
SG Ready function
9. The procedure after the shelf life of the device
CAUSE
Generator
breakdown
All the devices except
the
heater are disabled
- exceeding the maximum
temperature in the system
The alarm clears itself when
the
temperature drops
- defective external sensor
Replace the external sensor
Installation
failure
All the devices except
the
heater are disabled
Too high pressure in the
system
The alarm clears itself when
the
pressure drops
Tank sensor
failure
No device is operating
Defective tank sensor
Replace the tank sensor
Control sensor
failure
- On the main display
appears an appropriate
message
Defective control sensor
Replace the control sensor
-13-
Содержание DROPS D4.1
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