Utica Boilers UB90-200 Manuel De Montage

Corners

Alcoves

Behind doors

Concealed pipes or ducts

Stairwells - drafts

Unheated rooms on the other side 
of the wall

Concealed pipes

Fireplaces

TVs or radios

Lamps

Direct sunlight

Kitchens

• Follow instructions included with your thermostat.
• Locate thermostat five feet above floor on inside wall. 
• Mount directly on wall or vertically mount on outlet box. 

Thermostat should sense average room temperature.

• Set heat anticipator at 0.7 amps. 
• Connect 24 volt thermostat leads to the two (2) yellow 

wires located in service switch junction box, located 

on outer jacket of boiler. See Figure 15, Page 22

 

for 

service switch junction box and thermostat field wiring 

connections.

Label all wires prior to disconnection when servicing 

controls. Wiring errors can cause improper and 

dangerous operation. Verify proper operation after 

servicing.

See Figure 16, Page 24 and Figure 17, Page 25 for service 

switch junction box and circulator pump field wiring 

connections.  If the two 120 volt circulator wire terminals 

inside junction box are not used, leave two wire nuts to 

prevent short circuit.