2001
31
Fig. 34
Union to be released when
removing heat exchanger
Heat exchanger
venting cap
C.H. pressure
sensing point
C.H. pressure
relief valve
(drain point)
D.H.W.
drain point
C.H. temperature thermometer
phial and shim
Fig. 35
2.0
FLOWMETER (Domestic Hot Water) AND FILTER
a)
Refer to section 1, items a, b, c, d, f and g (drain D.H.W. only fig. 34).
b)
Undo the flow switch unions and carefully lower the flow switch taking care not to lose either the (three) sealing washers,
filter or flow restrictor.
c)
Disconnect the electrical connections to the flowmeter.
d)
Re-assemble in reverse order, ensuring that the filter, flow restrictor and sealing washers are in the correct position
(fig. 35). The polarity for the electrical wiring is immaterial.
Key
81. Ignition electrode
82. Flame sensing electrode
Fig. 33
Details Burner
37 Cold water inlet filter
136 Flowmeter
39 Cold water flow restricter
37
39
136
Caleffi
