Room Thermostat Connection; Relay Panel Control Connection - Biasi Riva Plus Installation & Operation Instructions

Wall hung gas boiler for central heating supply

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12. Electrical Connections/Wiring Cont.

• 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.

• 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.

RIVA PLUS MANUAL

11.3 Room Thermostat Connection:

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.

• 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.

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