9
FIGURE 3-4 Boiler Components 50/75/100 MBH
(View from Front of Boiler) As seen on front cover
(18) GAS SHUTOFF
VALVE
VALVE
(SHOWN IN OPEN
POSITION)
(25) VENT CONNECTOR
(19) COMBUSTION
AIR
AIR
BLOWER
BLOWER
(20) GAS (CONTROL)
(20) GAS (CONTROL)
VALVE
VALVE
(22) LOW
(22) LOW
WATER CUTOF
WATER CUTOF
F
(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
TERMINAL STRIP
(15) VENT
TEMPERATURE
SENSOR
(26) GAS CONNECTION
(26) GAS CONNECTION
(33) COMBUSTION
ANALYSIS TEST
PORT
PORT
(24) HIGH VOLTAGE
JUNCTION BOX
JUNCTION BOX
(9) HEAT
EXCHANGER
(29) BOILER
CONTROL
MODULE
Fuse and
Holder
(5) IGNITER
(6) FLAME
SENSOR
(7) SIGHT GLASS
(32) FLUE
AIR MIXTURE
PRESSURE
TEST PORT
(16) CONDENSATE
(16) CONDENSATE
DRAIN
DRAIN
((
RE
(31) TRANSFORMER
(
(11) RETURN WATER
TEMPERATURE SENSOR
N
N
(13)
(13)
INTERNAL PRIMARY
LOOP BALL VALVE
RY
PR MARY
PRI
R
M R
MA
PRIMARY
N
N
(35) HEAT EXCHANGER
SURFACE TEMPERATURE
SURFACE TEMPERATURE
SWITCH
SWITCH
3 - COMPONENT LISTING
(36) ASME
(36) ASME
PLATE
PLATE
(21) SUPPLY WATER
TEMPERATURE SENSOR
& HIGH LIMIT SWITCH
Содержание DKVLT-050
Страница 47: ...47 13 TROUBLE SHOOTING ...
Страница 51: ...51 13 TROUBLE SHOOTING ...
Страница 53: ...53 13 TROUBLE SHOOTING ...
Страница 62: ...62 Supply Water Temperature Sensor Resistance Chart 13 TROUBLE SHOOTING ...
Страница 64: ...64 14 WIRING DIAGRAM 14 1 Connection Diagram 050 075 100 150 200 MBH ...
Страница 66: ...66 14 WIRING DIAGRAM 14 3 Connection Diagram 299 MBH EXTERNAL PUMP RELAY LIMIT OF 1 AMP PER PUMP SEE SECTION 8 ...
Страница 83: ...83 NOTES ...
Страница 84: ...ECR International Inc 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com ...