Beckett 7556 12V GeniSys Control - Manual (Page 5)

5 GeniSys 12V Control Installation and Operation Manual
If the burner or control fails any of the
following tests, recheck control wiring. If the
burner or control still fails any tests, replace
the control.
Starting the System
Open the shut-off valve(s), if applicable,
in the supply line from the oil tank.
Close the disconnect switch to supply
power to the burner.
Adjust the thermostat to call for heat.
If the pump has not been primed, refer
to “Priming the Pump” in this manual.
Monitor burner operation to insure that
the burner ignites.
End the call for heat. Verify that the
burner turns off before leaving the
installation site.
Check Safety Features
Safe Start Check
Place a jumper across the cad cell
terminals.
Refer to the steps for “Starting the
System” and have the system call for
heat.
Burner must not start. Verify that the
control remains in Standby mode.
End the call for heat and remove the cad
cell jumper.
Simulate Flame Failure and Ignition
Failure
Refer to the steps for “Starting the
System” and have the system call for
heat.
After fl ame is established and the burner
igniter turns off (if wired for interrupted
ignition), simulate fl ame failure by pulling
1.
2.
3.
4.
5.
6.
1.
2.
3.
4.
1.
2.
Wiring:
Make sure all equipment wiring complies
with all local codes and ordinances.
Make connections to the control’s terminals
as shown in Figure 2. Refer to the label
on the underside of the control for wiring
details.
Motor-off delay on a 7556P will be disabled
if the safety and operating limits as shown
in Figure 2 interrupt power to the control’s
red +12 volt wire.
Input power to the control’s red +12 volt
wire must be provided from a fused service
switch, rated at 50 amps or less.
Replacing a 7434 Control with a
7556 Control
(Refer to Fig. 1 & 2.)
Remove the 7434.
Remove unused wires from the 7556.
Connect the cad cell wires to the 7556
yellow wires.
Connect the white wire to the thermostat or
high limit output. If the white wire from the
7434 was connected into the red with white
stripe wire or to the red wire, use a wire nut
to connect the white and red input wires
from the 7556.
Connect the red motor wire to the orange
wire on the MOTOR terminal and the black
motor wire to the to the black wire on the
GND (MOTOR) terminal.
Connect the red igniter wire to the blue with
white stripe wire on the IGNITER terminal
and the black igniter wire to the black wire
on the GND (IGNITER) terminal.
Connect the violet valve wire to the violet
wire on the VALVE terminal and the white
valve wire to the black wire on the GND
(VALVE) terminal.
Connect the 7556 red wire to the same
connection as the 7434 red wire. Note that
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to utilize the motor-off delay, the red wire
must remain powered after the call for heat
ends (Enable input turned off).
Connect the 7556 black input wire to the
same connection as the 7434 black input
wire with ring terminal.
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Startup / Checkout
Incorrect Wiring Will
Result in Improper
Control Operation
GeniSys 12V wiring label colors may not
match the wire colors of the burner or other
manufacturers’ controls.
The GeniSys 12V Control should be wired
according to the equipment manufacturer’s
instructions.
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CAUTION