Emptying The Primary Circuit; Emptying The D.h.w. Circuit - Biasi Inovia ERP Series Service Manual

GENERAL ACCESS AND EMPTYING HYDRAULIC CIRCUITS
figure 2 .9

2 .5 emptying the primary circuit

1 Close the c.h. circuit flow and return cocks G (Figure 2.10).
h
figure 2 .10
2 Remove the front and right panels of the boiler.
3 Open the drain tap I (Figure 2.11 combi or Figure 2.12 only
c.h.) until the boiler is completely emptied.
4 To help the draining of the primary circuit loose the condens-
ing heat exchanger air purger valve.
figure 2 .11
G
CLOSED
OPEN
i
figure 2 .12
2 .6 emptying the d .h .w . circuit
1 Close the d.c.w. inlet cock H (Figure 2.10).
2 Open one or more hot water taps until the boiler has been
completely emptied.
I
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