Dunkirk DKVLT-050 - Page 10

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