UTICA BOILERS UBSSC-299 Installation, Operation & Maintenance Manual page 11

FIGURE 3-55 Boiler Components 299 MBH (View from Front of Boiler)
Safety Relief Valve Safety Relief Valve
Air Vent Air Vent
Supply Water Supply Water
Temperature Sensor & Temperature Sensor &
High Limit Switch High Limit Switch
Low Water Cutoff Low Water Cutoff
Combustion Analysis Test Combustion Analysis Test
Port Port
Boiler Control Module Boiler Control Module
Fuse and Holder Fuse and Holder
Internal Primary Loop Internal Primary Loop
Ball Valve Ball Valve
(Behind Control) (Behind Control)
Heat Exchanger Surface Heat Exchanger Surface
Temperature Switch Temperature Switch
Heat Exchanger Pump Heat Exchanger Pump
Vent Temperature Sensor Vent Temperature Sensor
Condensate Collector Condensate Collector
Return Temperature Return Temperature
Sensor Sensor
(Behind User Interface) (Behind User Interface)
Low Voltage Terminal Strip Low Voltage Terminal Strip
High Voltage Junction High Voltage Junction
Box Box
Supply Water To Heating Supply Water To Heating
System (Out) System (Out)
3 - COMPONENT LISTING
Note
See Section 5 For Piping Instructions
Gas Connection Gas Connection
11
Vent Connector Vent Connector
Combustion Air Inlet Combustion Air Inlet
Blower Venturi Blower Venturi
Sight Glass & Igniter Sight Glass & Igniter
Flame Sensor Flame Sensor
Internal Pump Relay Internal Pump Relay
Transformer Transformer
Heat Exchanger Heat Exchanger
Gas (Control) Valve Gas (Control) Valve
Asme Plate Asme Plate
Gas Shutoff Valve Gas Shutoff Valve
(Shown In Open Position) (Shown In Open Position)
User Interface User Interface
Condensate Drain Condensate Drain
Return Water From Return Water From
Heating System (In) Heating System (In)
PN 240011320 Rev. G 10/01/2021]