Ferroli IDRO 12 Instrucciones página 12

cIrculatInG puMp DIaGnostIcs
Some faults linked to the circulating pump are signaled by the LED on the front of the pump
LED Fault
Fault
On with red light
Contact/winding
Under/overvoltage
Flashing with red light Excessive module temperature
Short circuit
Turbine operation
Dry running
Flashing with red/green light
Overload
faults
• If the pump does not turn, make sure the power supply cable and the modulating signal cable are connected to the ecotronic tech controller.
• If the pump makes noise, make sure there is no air inside the circuit, otherwise repeat the commissioning operation. If necessary, increase the system
pressure to the permissible design maximum or operate the pump speed selector, selecting a lower one or suitable for system requirements.
coMbIneD cIrculatIon unIt for solar systeMs
Install the circulation unit on a solid wall not subject to vibration.
Make sure the place of installation and the systems to which the
equipment must be connected comply with the current regulations.
Handle the unit with suitable protection and due caution. Do not
damage existing piping when drilling the wall. Empty the parts that may contain
hot water, by activating any vents, prior to handling. reinstate all the safety and
control functions involved in work on the unit and check their operation before
recommissioning.
The circulation unit is powered. Disconnect the power supply before
any maintenance on the pump. Do not damage existing electrical
cables when drilling the wall. Make the electrical connections with
wires of suitable section. Protect the connection cables to prevent
them from being damaged. Use suitable electrical equipment (in particular,
make sure the power cable is intact and that the parts with rotary or reciprocating
motion are properly secured), use it correctly, do not obstruct the passages
with the power cable, and prevent possible falling from above.
InstallatIon
Drill holes at the places shown in the figure and secure the Gruppo solare IDro 12/30
to the wall with plugs and screws suitable for the type of wall.
154
Connect the flow and return pipes to the circulation unit. Arrange and connect
a suitable expansion vessel according to the system design and a discharge
for the safety valve in case any heat transfer fluid comes out.
After the washing, filling, electrical connection and system checking operations,
close the circulation unit with the front casing.
systeM coMMIssIonInG
After carrying out the pipe connections, it is advisable to clean the system to
remove any impurities. Proceed as follows:
• close the balancing valve
EN
12
Gruppo solare IDro 12/30
Cause
Blocked rotor
Faulty winding
Supply side voltage too low/high
Inside of module too hot
Motor current too high
The hydraulic system of pumps is fed but the pump does not have mains
voltage
Air in pump
The motor turns with difficulty. Pump operation not in accordance with spe-
cifications (e.g. high module temperature). The speed is lower than in normal
operation.
cod. 3541L131 - Rev. 02 - 09/2021
.
• connect to the filling connection and run water into the system, making it
circulate until clean water comes out the drain connection
• if water is used for this operation, drain the system via the prepared connection,
making sure to force the opening of the non-return valve by turning the return
valve (blue) 45° in closing
• repeat the filling operation, but this time with appropriate heat transfer fluid
(water and glycol max. 50%)
• put all the hydraulic parts of the unit in the working position and activate
the circulating pump.
• open the air vent valve on the flow side and circulate the fluid for several
minutes, then recheck the circuit pressure; if it is lower than the required
design value, add more fluid and repeat the venting operation.
• once the system is vented, run the pump at maximum speed and adjust the
flow according to the solar collector manufacturer's instructions. The flow
rate is adjusted by means of the balancing valve and the reading on the
respective indicator or with the pump speed selector.
technIcal characterIstIcs IDro 12
fluid used:
operating temperature:
safety valve setting:
pressure gauge scale:
thermometer scale:
flow meter adjustment range:
available connections:
expansion vessel connection:
filling/drain connections:
circulating pump power supply:
technIcal characterIstIcs IDro 30
fluid used:
operating temperature:
safety valve setting:
pressure gauge scale:
thermometer scale:
flow meter adjustment range:
available connections:
expansion vessel connection:
filling/drain connections:
circulating pump power supply:
Cure
Activate manual restart or contact Customer Service
Check the mains voltage and conditions of use.
Request Customer Service
Check the mains voltage, the water flow/pressure as well
as the environmental conditions
water, glycol solutions max. 50%
120°C-160°C peak
6 bar
0÷10 bar
0÷120°C
2÷12 l/min
3/4" M
3/4" M
3/4" M
230V - 50Hz
water, glycol solutions max. 50%
120°C-160°C peak
6 bar
0÷10 bar
0÷120°C
8÷28 l/min
1" M
3/4" M
3/4" M
230V - 50Hz