Room Thermostat Connection - Biasi Riva Plus Installation And Operation Instructions Manual

12. Electrical Connections/Wiring Cont.
The room thermostat
•
must be connected to
the terminal
situated next to the
control panel.
L
To fused spur
isolation switch
3 2 1
J
External controls
terminal block
120 VAC Control
Terminal Block
Figure 12.6
The relay control must
•
be connected to the
terminal block situated
next to the control
panel.
L
To fused spur
isolation switch
3 2 1
J
External controls
terminal block
120 VAC Control
Terminal Block
Figure 12.8
30 Riva Plus Manual

12.3 Room Thermostat Connection:

Any external controls
•
and connection lines
block must be rated at 120
VAC but under no
circumstances should
N
external live voltage
be connected to the
Power supply
terminal block
room thermostat link
on the boiler.
When connecting any
•
type
control, the jumper J
in Fig. 12.6 must be
removed.
The room thermostat
•
must be connected to
the "Control Terminal
Block" (Fig 12.7).
12.4 Relay Panel Connection:
• When connecting any
type of relay control,
the jumper J in Fig.
12.8 must be removed.
Connect
•
contact switch of the
N
relay panel to the 120
VAC control terminal
Power supply
terminal block
block (Fig 12.9).
of external
•
•
the dry
•
Connect the
•
thermostat between
terminals 1 and 3 as
shown in Fig. 12.7.
T
Room thermostat
(120V rating)
L N
3 2 1 Power supply
terminal block
External controls
terminal block
Figure 12.7
Connect the
contact switch
terminals 1 and
shown in Fig. 12.9.
T
Generic Relay Control
(120V rating)
L N
Power supply
3 2 1
terminal block
External controls
terminal block
Figure 12.9
room
dry
to
3