Initial Start-Up; Checks During And After Initial Start-Up - Riello 7200 Kombisolar 3S Installation, Operation And Maintenance Manual

Initial start-up

INITIAL START-UP
Heat is only transferred from the solar heating circuit to
the combination storage cylinder when the temperature
of the solar collectors exceeds that in the combination
storage cylinder. It is therefore temperature differential
rather than absolute temperature that is important in con-
trolling solar water heating systems.
- Set the required temperature differential between the
collector and combination storage cylinder (see the
instruction manual for the controller).
- Start up the boiler to provide auxiliary heating for the
combination storage cylinder.

Checks during and after initial start-up

CHECKS DURING AND AFTER INITIAL START-UP
Once the system has been started up, perform the fol-
lowing checks:
Solar heating circuit
- Check that the flow rate in the solar heating circuit is
equivalent to 30 l/h for each m
- Check that the solar heating circuit has been properly
bled
- Check that the cold pressure of the system is approxi-
mately 3 bar
- Check that the safety valve operates at 6 bar
- Check that all pipes in the water circuit have been insu-
lated in conformity to relevant standards.
22
TECHNICAL ASSISTANCE
of collector area
2
Differential solar controller SUN Pro
3
2 4
1 5
6
0