Zone Valve Microswitch Connection - Biasi Riva Combi Installation & Operation Instructions

12. Electrical Connections/Wiring Cont.
• The zone valve micro
switch must be
connected to the terminal
block situated next to the
control panel.
L N
To fused spur
isolation switch
3 2 1
J
External controls
terminal block
120 VAC Control
Terminal Block
Figure 12.10
Route the electrical
•
supply cord and the
external control cord as
illustrated in Fig. 12.12.
30
12.5 Zone Valve Micro Switch Connection:
• When connecting the
zone valve switch, the
jumper J in Fig. 12.10
must be removed.
Power supply
terminal block
3
To the external
control device
Zone Room
Valve
Thermostat
V
T
N
L
1
120 VAC
Control Terminal
Block
Figure 12.11
12.6 Finishing
To the fused spur
isolation switch
Figure 12.12
• Connect the micro switch
of the zone valve to
terminals 1 and 3 as
shown in figure 12.11
• Connect the zone valve
switch to the room
thermostat as shown in
figure 12.11
• Lock the cords in place
with the flexible cord
clamps.
• Replace the control panel
reversing the steps on
page 23.
RIVA COMBI MANUAL - REV B