Room Thermostat Connection; Relay Panel Connection - Biasi Riva Advance Combi Installation & Operation Instructions

12. Electrical Connections/Wiring Cont.
• The room thermostat must be connected
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 12.6
• Any external controls and connection
lines must be rated at 120 VAC but
under no circumstances
external live voltage be connected to
terminals 1 and 3 on the boiler.
• The relay control must be connected to
the terminal block situated next to the
control panel.
To fused spur
isolation switch
3 2 1
J
Figure 12.8
• When connecting any type of relay
control, the jumper J in Fig. 12.8 must be
removed.
31 RIVA ADVANCE COMBI MANUAL

12.3 Room Thermostat Connection:

L N
Power supply
terminal block
External controls
terminal block
should

12.4 Relay Panel Connection:

L N
Power supply
terminal block
External controls
terminal block
• When connecting any type of external
control, the jumper J in Fig. 12.6 must be
removed.
• The room thermostat must be connected
to the "Control Terminal Block" through a
external relay such as the RIB01BDC (Fig
12.7).
RIB01BDC
wht/blu
wht/red
orange
black
120 V
yellow
Power
white
Figure 12.7
• Connect the room thermostat and relay
control between terminals 1 and 3 as
shown in Fig. 12.7.
• Connect the dry contact switch of the relay
panel to the 120 VAC control terminal
block (Fig 12.9).
T
Generic Relay Control
3 2 1
Figure 12.9
• Connect the dry contact switch to
terminals 1 and 3 shown in Fig. 12.9.
T
Room thermostat
(120V rating)
L N
Power supply
terminal block
3
1 2
External controls
terminal block
(120V rating)
L N
Power supply
terminal block
External controls
terminal block