AZURO BP-30WS-B Manual De Uso Y Mantenimiento página 14

7.2
WINTERING
(a) Disconnect the heat pump from the mains.
(b) Close the bypass cock valves nos. 2 and 3 (see the figure in chapter 6.2 Adjustment of Operating State Using Bypass).
(c) Drain all water from the heat pump by disconnecting the pipe system from both connections of the filtration circuit (THERE IS A RISK OF FREEZING).
(d) Suck all residual water from the evaporator to leave it dry (THERE IS A RISK OF FREEZING).
(e) Reconnect the filtration circuit (do not tighten its connections) to protect the heat pump against ingress of dirt or water.
IMPORTANT: Correct wintering is very important. No water can be left in the heat exchanger. The guarantee shall not
apply to any exchanger damage caused by frost.
7.3
ERROR MESSAGES AND TROUBLESHOOTING
Displayed error message and
related equipment failure
Compressor and blower
PP 1
have stopped.
Compressor and blower
PP 2
have stopped.
Compressor and blower
EE 1
have stopped.
Compressor and blower
EE 2
have stopped.
Compressor and blower
EE 3
have stopped.
Equipment cannot be
EE 4
switched ON.
Compressor and blower
EE 6
have stopped.
Control panel does not
EE 8
communicate.
1) A specialized technician of refrigeration equipment shall be contacted to check the system.
IMPORTANT: In case a necessary intervention into electrical wiring an authorised service shall be contacted.
14
Component
Water temperature Sensor signal wire or supply wire is
sensor broken, or the sensor is defective.
Temperature sensor
Sensor signal wire or supply wire is
at compressor
broken, or the sensor is defective
discharge
Maximum./
Minimum pressure
Protection is disconnected or defective
switch
Surplus coolant in the system
Lack of coolant in the system.
Minimum pressure
switch
Coolant leakage from the system.
Flow rate sensor signal wire or supply
Flow rate sensor
wire is broken, or the flow rate sensor
Safety witch Action of the safety switch.
The temperature in excess of 105 °C on
Temperature sensor
the compressor discharge was detected
at compressor
more than three times within the period
discharge
Communication error A problem of equipment communication
Possible cause
Low water flow rate.
Water flow rate is low.
is defective.
of 24 hours.
with the control unit.
Putting it right, other possible
causes and solutions
Check the wires and connections,
replace defective ones. If the failure
persists, replace the sensor.
Check the wires and connections,
replace defective ones. If the failure
persists, replace the sensor.
Clean the filtration unit and open
fully the bypass.
1)
1)
1)
1)
Clean the filtration unit and open fully the
bypass. Check connections and wires, replace
them or replace the control unit.
Have checked the electrical wiring.
The problem that may be caused by
external conditions. Coolant leakage.
Clogged capillary tube.
Check the connections of signal cable.