Verona WALL HUNG GAS BOILER manual Room Thermostat Connection, 12.4Relay Panel Connection

Power supply terminal block

					12.3 Room Thermostat Connection:
•	The room thermostat					•	Any external controls
	must be connected to						and connection lines		T	Room thermostat
	the terminal block						must be rated at 120			(120V rating)
	situated next to the						VAC but under no
	control panel						circumstances should
				L	N		external live voltage			L	N
	To fused spur						be connected to the
	isolation switch
					Power supply		room thermostat link	3	2	1	Power supply
					terminal block		on the boiler				terminal block
											External controls
						•	When connecting any
J	3	2	1								terminal block
							type of external			Figure 12.7
				External controls			control, the jumper J	•	Connect the room
				terminal block			in Fig. 12.6 must be
									thermostat between
							removed.		terminals 1 and 3 as
	120 VAC Control					•	The room thermostat		shown in Fig. 12.7.
	Terminal Block						must be connected to
		Figure 12.6					the “Control Terminal
							Block” (Fig 12.7).

•The relay control must be connected to the terminal block situated next to the control panel

To fused spur	L	N
isolation switch

J 3 2 1

External controls terminal block

120 VAC Control

Terminal Block

12.4Relay Panel Connection:

• When connecting any

type of relay control, the jumper J in Fig.

12.8 must be removed.

•Connect the dry contact switch of the relay panel to the 120 VAC control terminal block (Fig 12.9).

TGeneric Relay Control

(120V rating)

L N

3	2	1	Power supply
			terminal block

External controls terminal block

Figure 12.9

•Connect the dry contact switch to terminals 1 and 3 shown in Fig. 12.9.

Figure 12.8

12. Electrical Connections/Wiring Cont.

RIVA HEAT ONLY MANUAL - REV A24