TECHNICAL DATA SHEET 02/2018 - ENG
ICMA S.p.a. via Garavaglia, 4 20012 Cuggiono (MI) – ITALIA
Tel. +39 02 97249134 / +39 02 97249135
pag. 5
ART. S001-S002-S003-S004 SOLAR MODULE
TECHNICAL SPECIFICATIONS
The solar modules receive a signal from the external controller which, having at least two temperature sensors (one is
positioned on the panel outlet pipe and the other is an immersion sensor in the boiler), constantly reads the temperature
difference and keeps it within the established range, which normally varies between 5 and 8 °C. If the
Δt between the panel and
the boiler is found to be over the established set point, the controller starts up the pump on the module to provide the lacking
thermal load. If, on the other hand, the
Δt is narrower than the one set, the internal pump will be disabled.
For further clarification about the electronic controller functioning, consult the technical documentation about art. S301, S302 and S302PWM.
FILLING THE SYSTEM
1.
Open the shut off valves connected with the air vent valves A (Fig.1). These valves must be located at the highest point
of the system to optimize their function of air expulsion from the circuit.
2.
Open both the shut off valves 4 (Tab.1) and 7 (when present) turning their handles to 45° (see the operating specifications
of these valves on page 11 of this data sheet).
3.
Fully open the flow meter 6 (Tab. 1) carrying the reference mark of the flow meter in vertical position (see operating
specifications on page 10). Check that the drain tap 3 is closed.
4.
Connect an external pump to the tap 3 of the instrument holder connection 2 (Tab.1) with a rubber pipe. This pump will
get the heat-transfer fluid, previously prepared, from an external container.
5.
Open the tap 3 of the instrument holder connection 2 (Tab.1) and start the external pump to fill the system.
6.
Fill the system until air stops coming out of the air vent valves A (Fig.1).
7.
Close the tap 3 and disconnect the external pump.
8.
Close the shut off valves connected with the air vent valves A (Fig.1).
WASHING THE SYSTEM
1.
Open both the shut off valves 4 (Tab.1) and 7 (when present) turning their handles to 45° (see the operating specifications
of these valves on page 11 of this data sheet).
2.
Close the flow meter 6 (Tab. 1) carrying the reference mark of the flowmeter in horizontal position (see operating
specifications on page 10).
3.
Connect the drain cock 3 of the flow meter 6 (Tab. 1) to a point of discharge using a rubber pipe.
4.
Connect an external pump to the tap 3 of the instrument holder connection 2 (Tab.1) with a rubber pipe. This pump will
get the washing liquid (or the new heat-transfer fluid) from an external container.
5.
Start the external pump and open both taps 3, the washing fluid will enter into the system while the one inside will be
discharged through the lower tap 3 of the flow meter 6 (Tab. 1).
6.
Open slightly and for a short time the flow meter 6 (Tab. 1) to let the washing fluid running also through the system pump.
7.
For a proper washing let the pump running for a few minutes, then close the taps, switch off the pump and disconnect the
rubber pipes.
Fig.1
