Dunkirk Helix VX Vertical Laser Tube Wall Hung Stainless Steel Modulating Condensing Boiler - Manual (Page 9)

9
3 - COMPONENT LISTING
FIGURE 3-4 Boiler Components 50/75/100 MBH (View from Front of Boiler) As seen on front cover
(2) VENT CONNECTOR
(25) COMBUSTION
AIR
BLOWER
(24) GAS (CONTROL)
VALVE
(28) SAFETY RELIEF
VALVE
(3) COMBUSTION
AIR INLET
NOTE:
See Section 5
For Piping
Instructions
(21) FLUE
COLLECTOR
(14) RETURN WATER
FROM HEATING
SYSTEM (IN)
(18) SUPPLY WATER TO
HEATING SYSTEM (OUT)
(12) LOW VOLTAGE
TERMINAL STRIP
(22) VENT
TEMPERATURE
SENSOR
(1) GAS (CONNECTION)
SHUT OFF VALVE
(23) COMBUSTION
ANALYSIS TEST
PORT
(20) HIGH VOLTAGE
JUNCTION BOX
(10) HEAT
EXCHANGER
(9) BOILER
CONTROL
MODULE
Fuse and
Holder
(4) IGNITER
(5) FLAME
SENSOR
(6) SIGHT GLASS
(7)AIR FLUE
MIXTURE
PRESSURE
TEST PORT
(15) CONDENSATE
DRAIN
(8) USER
INTERFACE
(13) RETURN WATER
TEMPERATURE
SENSOR
(11) ASME
PLATE
(27) SUPPLY WATER
TEMPERATURE SENSOR
& HIGH LIMIT SWITCH
(17) Jacket Latch
(26) HEAT
EXCHANGER SURFACE
TEMPERATURE SWITCH
BRACKET
(19) TEMPERATURE/PRESSURE
GAUGE
(16) CONDENSATE
TRAP
(29) Pump Relay