Utica Boilers SSV Installationsanweisungen

Electrically bond boiler to ground in accordance with       

requirements of authority having jurisdiction.  Refer to:

• USA- National Electrical Code, ANSI/NFPA 70.
• Canada - Canadian Electrical Code, Part I, CSA C22.1: 

Safety Standard for Electrical Installations.

8.2 Electric Knockouts  (figure 8-1)

A.  Four knockouts located under junction box are 

reserved for high voltage wires. Choose connectors 

using total diameter of wire bundles.

B.  Two knockouts located to right of high voltage 

knockouts (outside of junction box) are reserved 

for low voltage wiring. Use supplied grommets 

when using these knockouts.

8.3 Line Voltage Connections (figure 8-2)

A.  Provide individual 120V, 15 amp circuit 

(recommended) with fused disconnect or service 

switch as required by authority having jurisdiction.

B.  Open High Voltage Junction Box (see figures 3-4 

and 3-5) to access line voltage terminal strip.

C.  Connect 120 VAC circuit to line voltage terminal 

strip 120 VAC L,N,G.

A.  Isolate pump from control module if pump FLA (Full 

Load Amps) exceeds maximum allowable current 

draw. See Figure 8-3 and Table 9.

B.  Connect pump to line voltage terminal strip CH 

PUMP L,N,G.

A.  Isolate pump from control module if pump FLA 

exceeds maximum allowable current draw. See 

Figure 8-3 and Table 9.

B.  Connect pump to line voltage terminal strip DHW 

PUMP L,N,G.

A.  Isolate pump from control module if pump FLA 

exceeds maximum allowable current draw. See 

Figure 8-3 Table 9.

B.  Connect pump to line voltage terminal strip primary  

pump, L, N, G.

8.4 External Connections (figure 8-4)

A.  Factory wired to USER INTERFACE terminals

B.  Optional - Remote mount user interface for        

improved access.  Use low voltage knockout. 

C.  Maximum wire length is 100 ft (30m) for 22 ga. 

wire, or 150 ft (45m) for 18 ga. wire.

Electrical shock hazard.  Turn OFF electrical power 

supply at service panel before making electrical  

connections.  Failure to do so could result in death 

or serious injury.

     

Wiring diagrams can be found in Section 14 of this 

Manual.

5.26"(134mm) 50-100mbh

8.17"(208mm) 150/200mbh

High Voltage 

Knockouts

Low Voltage Knockouts

(Use supplied 

grommets when using 

these knockouts)

Front of Boiler

Back of Boiler

50         

75           

100

1 A*

1 A*

10 A**

*Powered by 

Control Board

150            

200  10 A** 10 A**

10 A**

**Powered by 

installed 10 Amp 

relay

If CH or DHW pump current is more than the maximum 

allowable current draw install proper field sourced relays as 

shown in figure 8-3.

Maximum allowable total amperage of all 3 pumps must not 

exceed 20 amps.