UTICA BOILERS SSC UBSSC-075 Installation Operation & Maintenance page 10

FIGURE 3-5 Boiler Components 299 MBH (View from Front of Boiler)
(28) AIR VENT (28) AIR VENT
(21) SUPPLY WATER
TEMPERATURE SENSOR &
HIGH LIMIT SWITCH
(22) LOW WATER
CUTOFF CUTOFF
(33) COMBUSTION ON
ANALYSIS TEST T
PORT
(34) INTERNAL
PUMP RELAY
(29) BOILER CONTROL ROL L
MODULE
Fuse and Holder der r
(13) INTERNAL PRIMARY (13) INTERNAL PRIMARY
LOOP BALL VALVE LOOP BALL VALVE
(35) HEAT (35) HEAT
EXCHANGER SURFACE
TEMPERATURE SWITCH
(17) HEAT EXCHANGER
PUMP PUMP
(10) CONDENSATE
COLLECTOR
(4) LOW VOLTAGE (4) LOW VOLTAGE
TERMINAL STRIP TERMINAL STRIP
(24) HIGH VOLTAGE (24) HIGH VOLTAGE
JUNCTION BOX JUNCTION BOX
(14) SUPPLY WATER TO (14) SUPPLY WATER TO
HEATING SYSTEM (OUT) HEATING SYSTEM (OUT)
3 - COMPONENT LISTING
(23) SAFETY RELIEF VALVE (23) SAFETY RELIEF VALVE
(25) VENT CONNECTOR
10
NOTE:
See Section 5
For Piping
Instructions
(2) COMBUSTION
AIR INLET
(26) GAS CONNECTION (26) GAS CONNECTION
( (19) BLOWER
VENTURI
( ( (5) IGNITER
(7) SIGHT GLASS
&
(6) FLAME SENSOR (6) F F
(1) USER INTERFACE
(31) TRANSFORMER
(9) HEAT (9) HEAT
EXCHANGER E E
(2 (2 (20) GAS (CONTROL)
VALVE VALVE
(36) ASME (
PLATE PLATE
(15) VENT TEMPERATURE (15) VE (
SENSOR
(18) GAS SHUTOFF
VALVE VALVE
(SHOWN IN OPEN (S
POSITION)
(11) RETURN
T T TEMPERATURE
SENSOR SENSOR
(16) CONDENSATE (16) CONDENSATE
DRAIN DRAIN
(3) RETURN WATER (3) RETURN WATER
FROM HEATING FROM HEATING
SYSTEM (IN) SYSTEM (IN)