Riello KV/200 20 ISC Solar Installation And Maintenance Manual page 13

CENTRAL HEATING SYSTEM (DIRECT ZONE)
600
550
500
450
400
350
300
250
200
150
100
50
0
0 200
SOLAR HEATING SYSTEM
600
550
500
450
400
350
300
250
200
150
100
50
0
0 100
b
On initial start-up and at least every year, check that
all the pumps in the system rotate freely. Sludge and
lime scale can build up and cause seizure, espe-
cially after long periods of disuse.
b
Protect all electrical devices under the pump before
you unscrew the inspection cap just in case water
comes out.
a
Never run the pump dry.
I
400 600 800
FLOW RATE (l/h)
I
200 300 400 500
FLOW RATE (l/h)
II III
1000 1200 1400
II III
600 700 800 900
1600 1800 2000
1000 1100 1200
GENERAL
13