Utica Boilers CuB Series 安装指导

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.

Provide individual 120V, 15 amp circuit (recommended) 

with fused disconnect or service switch as required by 

authority having jurisdiction.

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.

     

A.  Use thermostat or boiler system control with 

dry contacts rated 0.5 amps @ 120 VAC.

 

Boiler 

control does not provide 24 VAC power to central 

heating thermostat. Do not use to power 24VAC 

thermostat.

B.  Locate and install thermostat per manufacturer's 

instructions. Maximum wire length is

 

330 ft (100m) 

for 22 ga. wire.

C.  Connect wires to terminals 1 and 2 as shown in 

fi gure 17. Wires are interchangeable.

  - Thermostat or dry contacts

  - 138 = Optional External Outdoor Reset Sensor

                  Connections on 5 & 6 terminals

        155 = Optional Indirect Tank Sensor  

                  Connections on 7 & 8 terminals

        370 = Low Water Cutoff (LWCO) - fi eld source              

                  Connections on 1 & 2 terminals are 120 Volts A/C.

                  Connections on 3 & 4 are dry contact only.