Weil-McLain UO-3 CV - Manual (Page 17)

Page 16 6104BAFG R05
Figure 1 1a. – Interrupted ignition, valve-on delay
only (no motor-off delay)
Figure 1 1b. – Interrupted ignition, valve-on delay
and motor-off delay
SAFETY AND
OPERATING
LIMITS
LIMIT
L1
L2 (VLV)
VALVE
L2
MOTOR
L2 (MTR)
L2 (IGN)
IGNITER
CAD
CELL
MOTOR
IGNITER
W
R
80 70 60
50
50
70 80 60
OIL VALVE
CAD CELL
THERMOSTAT
TR
TW
TR-TW
JUMPER
TR-TW TERMINALS
LOCATED ON OPPOSITE
SIDE OF CONTROL
L1
L2
SAFETY AND
OPERATING
LIMITS
LIMIT
L1
L2 (VLV)
VALVE
L2
MOTOR
L2 (MTR)
L2 (IGN)
IGNITER
CAD
CELL
MOTOR
IGNITER
W
R
80 70 60
50
50
70 80 60
OIL VALVE
CAD CELL
THERMOSTAT
TR
TW
TR-TW
JUMPER
TR-TW TERMINALS
LOCATED ON OPPOSITE
SIDE OF CONTROL
L1
L2
LIMIT L1 - LIMIT
JUMPER
Table 2 - Reset Button Operation
If the burner is in the
below state:
Pushing the reset button will:
Button Click
(press < 1 second)
Button Hold
(press > 1 second)
Button Hold
(press 15+ seconds)
Lockout Reset from Soft Lockout
Reset from Restricted (Hard)
Lockout
Valve-on Delay, Trial for
Ignition, Ignition Carryover Go to Pump Prime (see
“Priming the Pump” above) Disable the Burner:
Any time the burner is running,
press and hold the reset button
to disable the burner. The
burner will remain off as long
as the button is held. Enables Pump Priming:
After the reset button has been
held for 15 seconds, the button
can then be clicked during the
next ignition sequence to enter
Pump Prime mode.
Run (igniter is shut off)
Yellow light fl ashes to indicate
cad cell resistance. See “Cad
Cell Resistance Indicator” for
table of resistance values.
Motor-Off Delay,
Standby No action
Pump Prime No action Exit Pump Prime mode and return to Standby
Table 3 - Status Lights
Light Color On Continuously Flashing
Red Restricted (Hard) Lockout Soft Lockout
Green Flame Sensed during normal operation (Could
be stray light during standby) Recycle
Yellow Control is in Pump Prime mode or
Reset button currently held for 15+ seconds. Cad Cell resistance. See “Cad Cell Resistance
Indicator” on page 18 for a table of resistance
values.
Reset Button Operation
Table 2 explains what action the control will take when the reset button is pressed for different lengths of time
during the various burner operating states.
Burner Controls
6104BAFG R06