Installation manual

RIVA PLUS MANUAL 27
12. Electrical Connections/Wiring Cont.
11.3 Room Thermostat Connection:
• The room thermostat must be connected
to the terminal block situated next to the
control panel.
Figure 11.6
• Any external controls and connection
lines must be rated at 120 VAC but un-
der no circumstances should external live
voltage be connected to the room thermo-
stat link on the boiler.
11.4 Relay Panel Connection:
• 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” (Fig 12.7).
Figure 11.7
• Connect the room thermostat between
terminals 1 and 3 as shown in Fig. 12.7.
• The relay control must be connected to
the terminal block situated next to the
control panel.
Figure 11.8
• When connecting any type of relay con-
trol, the jumper J in Fig. 12.8 must be re-
moved.
• Connect the dry contact switch of the re-
lay panel to the 120 VAC control terminal
block (Fig 12.9).
Figure 11.9
• Connect the dry contact switch to termi-
nals 1 and 3 shown in Fig. 12.9.