Utica Boilers SSV 安装指导

Boiler operates in standby mode 

until demand for Central Heat (CH) 

or Domestic Hot Water (DHW) is 

detected.

CH or DHW pump is turned on based 

on type of heating demand.
(CH call is illustrated) 

Control Module compares supply  

Temperature to set point. Boiler 

proceeds to ignition if supply 

temperature is less than set point. 

Combustion Air Blower speed             

modulates to pre-purge setting for 15 

seconds.

Sparking initiated sequence.