Honeywell Y8610U Product Data page 18

Y8610U INTERMITTENT PILOT RETROFIT KIT
THERMOSTAT
TH-W
FUSE
3
1 5 3 2 4
1 5 3 2 4
VENT
YELLOW
DAMPER
PLUG
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 ALTERNATE LIMIT CONTROLLER LOCATION.
3 3.0 AMP NONREPLACEABLE FUSE. FUSE BLOWS WHEN VENT DAMPER IS PLUGGED IN.
68-0133—2
L1
ON-OFF
(HOT) LIMIT
SWITCH
CONTROLLER
2
24V
FLAME
DETECTOR
CIRCUIT
1K
LOW
2K
VOLTAGE
POWER
3K
SUPPLY
1K1 3K2
1K2
2K2 3K1
Fig. 22. Y8610U schematic diagram.
24V
TRANSFORMER
2K1
SPARK
DRIVE
CIRCUIT
HYBRID CIRCUIT
RELAY TIMING
DRIVERS CIRCUITS
18
L2
1
24V
(GND)
ARC
GAP
GND
(BUR-
SPARK
NER)
IGNITER
SENSOR
BURNER
GROUND
MAIN
VALVE
MV/
MV
PV
PILOT
VALVE
PV
INTERNAL WIRING
EXTERNAL WIRING
M3311