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

12. Electrical Connections/Wiring Cont.
• The zone valve micro switch must be con-
nected to the terminal block situated next
to the control panel.
To fused spur
isolation switch
3 2 1
J
120 VAC Control
Terminal Block
Figure 12.10
• When connecting the zone valve switch,
the jumper J in Fig. 12.10 must be re-
moved.
• Route the electrical supply cord and the external control cord as illustrated in Fig. 12.12.
• Lock the cords in place with the fl exible cord clamps.
• Replace the control panel reversing the steps on page 23.
RIVA PLUS COMBI MANUAL
12.5 Zone Valve Micro Switch Connection:
L N
Power supply
terminal block
External controls
terminal block
12.6
To the external
control device
Figure 12.12
3
• Connect the micro switch of the zone
valve to terminals 1 and 3 as shown in fi g-
ure 12.11
• Connect the zone valve switch to the room
thermostat as shown in fi gure 12.11

Finishing

To the fused spur
isolation switch
Zone
Room
Valve
Thermostat
V
T
N
L
1
120 VAC
Control Terminal
Block
Figure 12.11
29