BASO BG1600M51EF-1AA - Manual (Page 10)

10 BG1600M51EF-1AA Universal Intermittent Pilot Ignition Control Installation Instructions
Table 3: Replacing Robertshaw® 780-845
Wire Function 780-845 BG1600M
Main Valve MV 1 MV
Valve Common PV-MV 2 MV/PV
Pilot Valve PV 3 PV
Pilot Burner Ground GND
4 GND
(BURNER)
Power Supply Ground TR 5 GND
Thermostat TH 7 TH
Sense Electrode
(if two rod sense)
SENSE 8 SENSE
Note: Verify that the spark wire is noise suppression
(resistive) type and replace if necessary.
Checkout
!
WARNING: Risk of Explosion or Fire.
Verify that there are no gas leaks by testing with
appropriate equipment. Never use a match or lighter
to test for the presence of gas. Failure to test
properly can lead to an explosion or fire and may
result in severe personal injury or death.
Make sure all components function properly by
performing the following test.
1. Before starting the appliance, perform a safety
inspection of piping, burners and venting. Check
for water leaks, etc. Check all wiring for proper
connections. Be sure the system is properly
grounded, including ground connection to the
pilot burner.
2. With the gas and thermostat off, turn on power to
the appliance.
3. Turn the thermostat to a high setting and verify
that the control goes through the operating
sequence to a shutoff condition.
Note: The burner does not light because the
gas is off.
4. Turn off the thermostat.
5. Turn on the gas and purge gas lines of all air.
6. Check for gas leaks on all pipe joints upstream of
the gas valve with a soap solution.
7. Turn the thermostat to the highest setting and
verify successful ignition and a normal run
condition for at least 5 minutes. If the appliance
fails to run, see the Troubleshooting section.
8. Check for gas leaks on all pipe joints downstream
of the gas valve with a soap solution.
9. Turn the thermostat down for at least 30 seconds
and then back up again. Verify successful ignition
at least five times.
10. Return the thermostat to a normal temperature
setting before leaving the installation.
!
WARNING:
The control module can not be serviced by user. If
any faults are detected, the control module must be
replaced. If control module has been opened or any
attempts to repair are done, the warranty is void.
Operation
Operating Mode Definitions
The following definitions describe the
BG1600M51EF-1AA operating conditions.
• Prepurge: Initial time delay between thermostat
contact closure and activation of the spark circuit
and pilot valve.
• Trial for Ignition: Total time the pilot valve is
energized and spark/sense sequence is activated
in an attempt to light the pilot. The control attempts
to prove flame within the trial-for-ignition time.
• 100% Shutoff: If the control does not prove the
presence of pilot burner flame within the trial for
ignition, the spark circuit and pilot valve are
de-energized.
• Recycle: If 100% shutoff occurs, the control
delays 5 minutes (recycle delay period) and
begins another trial for ignition.
• Run: Main valve is energized and spark turns off
after pilot flame is proven. The main valve remains
energized until the thermostat is satisfied.
• Flameout: Loss of proven flame. Should a
flameout occur, the main valve de-energizes and
spark recurs within 2.0 seconds.
• Lockout: An internal or external fault has caused
the control to de-energize the spark circuit and
valve relays. The thermostat contacts must be
opened for 30 seconds and then closed to begin
another trial for ignition.
• Inter-Purge: Period between trials for ignition
when both the gas valve and spark are
de-activated to allow unburned gas to escape
before the next trial.