UTICA BOILERS UBSSC-050 Manuel D'installation page 68

14.4 Schematic Diagram of Ladder Form -150/200/299 MBH
LADDER DIAGRAM
150/200/299
L
LWCO
CH
THERMOSTAT
USER
INTERFACE
SUPPLY
SENSOR
RETURN
SENSOR
DHW
THERMOSTAT
FLUE
SENSOR
SYSTEM
SENSOR
(OPTIONAL)
OUTDOOR
SENSOR
ARGUS LINK
POWER
ARGUS LINK /
MULTI BOILER
(OPTIONAL)
GAS VALVE WIRING FOR
150 / 200 MBH BOILERS
J13-3
J13-4
ARGUS
CONTROL
4 3
J16-1
J16-4
J16-5
J16-8
J16-6
J16-7
J16-3
J16-2
J5-9
J5-1
J5-10
DISPLAY
J5-2
4
2
J5-11
J5-3
J5-12
J5-4
J5-13
J5-5
J5-14
J5-6
J5-15
J5-7
J5-16
J5-8
ON
S4
OFF
J18-1
J18-2
LWCO
24 VAC
1
GAS VALVE
G
J12 GROUND
J13-2 FLAME SENSOR
BURNER
T2 IGNITION
PE
J9-1
DC+/L
J9-2
+
J9-6
DATA/PWM
J9-7
FAN
HALL
120VAC
J9-5
GND
J9-4
DC-/N
J9-3
1 3
LIMIT
J13-1
J13-5
J13-6
HEAT EXCHANGER
TEMPERATURE SWITCH
J13-3
GAS VALVE
J13-4
DHW PUMP
RELAY 120VAC
L L
J6-1
N
J6-3
L L
J6-2
CH PUMP
RELAY 120VAC
L
L
J7-4
N
J7-2
PRIMARY PUMP
J7-1
RELAY 120 VAC
J7-3
PRIMARY
PUMP 120 VAC
L L G
J4-1
N
J4-2
J4-3
J4-4
G
J2-1
N
J2-2
L
J2-3
J2-4
120V / 24V, 15VA
TRANSFORMER
2
68
N G
G
N
G
PN 240011323, Rev. F [03/31/2018]